Solar charging device of electric bicycle and electric bicycle

Abstract

The utility model provides a solar charging device of an electric bicycle and the electric bicycle. The solar battery pack comprises a first solar cell panel and a second solar cell panel, the first solar cell panel is hinged to the second solar cell panel, and the first solar cell panel is further hinged to the mounting frame; the gravity center of the solar battery pack is lower than the rotating axis of the hinged part of the first solar panel and the mounting frame when the solar battery pack is folded; a folding limiting piece and an unfolding limiting piece are arranged on the mounting frame, and the folding limiting piece is also lower than the rotating axis of the hinged position of the first solar cell panel and the mounting frame; when the solar battery pack is buckled and folded, the folding limiting piece can limit the first solar cell panel, and when the solar battery pack is unfolded, the unfolding limiting piece can limit the first solar cell panel. The solar battery pack can be prevented from turning over due to inertia, so that a rider can be prevented from being hurt, and collision with the frame can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of solar vehicles, in particular to a solar charging device for an electric bicycle and an electric bicycle. Background Art

[0002] Two-wheel vehicles (such as bicycles, electric bicycles, etc.) have the advantages of being flexible to use and convenient to park, and are essential personal transportation tools in people's daily lives. The Chinese utility model patent with the application number CN201920426728.9 discloses a solar charging device for a two-wheel vehicle, which installs a solar panel that can be folded and unfolded and is connected to the vehicle frame at the rear of the vehicle for charging the battery of the electric bicycle. However, the above solar charging device has the following defects: when it is folded, a pull rope is used as a restraint device. To prevent the solar panel from flipping forward when braking during riding, the pull rope generally needs to be strengthened. However, there is still a risk of breakage such as fatigue failure of the pull rope during use. Once the pull rope fails, it will cause personal injury or component damage. Summary of the Invention

[0003] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a solar charging device for an electric bicycle and an electric bicycle, which are used to solve the problems existing in the prior art.

[0004] To achieve the above purpose and other related purposes, on the one hand, the present utility model provides a solar charging device for an electric bicycle, including a mounting frame; a solar battery pack, the solar battery pack includes a first solar panel and a second solar panel, the first solar panel is hinged to the second solar panel, wherein the first solar panel is hinged to the mounting frame, and the center of gravity of the solar battery pack when folded is lower than the rotation axis of the hinge between the first solar panel and the mounting frame; the mounting frame is provided with a folding limit member and an unfolding limit member, and the folding limit member is also lower than the rotation axis of the hinge between the first solar panel and the mounting frame; when the solar battery pack is folded, the folding limit member can limit the first solar panel, and when the solar battery pack is unfolded, the unfolding limit member can limit the first solar panel.

[0005] Preferably, the mounting bracket includes a backrest frame and a support frame. The backrest frame is connected to the frame of the electric bicycle. The support frame includes a transverse plate and two side plates. The transverse plate is fixedly connected to the backrest frame. The two side plates are respectively connected to both ends of the transverse plate, and the two side plates extend horizontally and are perpendicular to the transverse plate. Both sides of the first solar panel are respectively hinged to the two side plates. The tops of the first solar panel and the second solar panel are hinged by a first beak hinge, and the first solar panel is located inside the second solar panel.

[0006] Preferably, the rotation axis of the hinged joint between the first solar panel and the second solar panel is higher than the rotation axis of the hinged joint between the first solar panel and the mounting bracket.

[0007] Preferably, the retraction limiting member includes a retraction limiting shaft provided on the side plate. When the solar cell group is retracted, the first solar panel abuts against the retraction limiting shaft.

[0008] Preferably, the retraction limiting member includes a limiting plate connected to the backrest frame. When the solar cell group is retracted, the first solar panel can abut against the limiting plate.

[0009] Preferably, the deployment limiting member includes a deployment limiting shaft fixedly provided on the side plate. When the solar cell group is deployed, the first solar panel abuts against the deployment limiting shaft.

[0010] Preferably, the limiting plate is provided with a magnetic sheet. The first solar panel includes a magnetic frame and solar cells. The solar cells are arranged in the magnetic frame. When the first solar panel and the second solar panel are retracted, the magnetic sheet is attracted to the magnetic frame of the first solar panel.

[0011] Preferably, the solar cell group further includes a third solar panel. The bottom of the third solar panel is hinged to the bottom of the second solar panel by a second beak hinge. The third solar panel is located outside the second solar panel. A locking unit is provided between the first solar panel and the third solar panel. When the first solar panel, the second solar panel, and the third solar panel are retracted, the locking unit can lock the third solar panel and the first solar panel.

[0012] Preferably, the locking unit includes a latch fixing part fixedly arranged on the first solar panel and a latch moving part fixedly arranged on the third solar panel. When the first solar panel, the second solar panel, and the third solar panel are folded up, the latch moving part is latched with the latch fixing part.

[0013] Preferably, the first solar panel, the second solar panel, and the third solar panel each include a magnetic frame and solar cells, and the solar cells are arranged in the magnetic frame; when the solar cell group is folded up, the magnetic frames of the first solar panel, the second solar panel, and the third solar panel can attract each other.

[0014] Preferably, positioning beads are arranged on the side of the solar cell group, and pits matching the positioning beads are arranged on the side plate; when the solar cell group is folded up, the positioning beads can be embedded in the pits.

[0015] Preferably, the solar cell group further includes a third solar panel and a fourth solar panel. Among them, the bottom of the third solar panel is hinged to the bottom of the second solar panel through a second beak hinge, the top of the fourth solar panel is hinged to the top of the third solar panel through a third beak hinge, and the fourth solar panel is located outside the third solar panel; a locking unit is arranged between the first solar panel and the fourth solar panel. When the first solar panel, the second solar panel, the third solar panel, and the fourth solar panel are folded up, the locking unit locks the fourth solar panel and the first solar panel.

[0016] Preferably, the locking unit includes a latch fixing part fixedly arranged on the first solar panel and a latch moving part fixedly arranged on the fourth solar panel. When the first solar panel, the second solar panel, the third solar panel, and the fourth solar panel are folded up, the latch moving part is latched with the latch fixing part.

[0017] Preferably, the folding limiting member further includes a limiting plate connected to the backrest frame. A magnetic attraction sheet is arranged on the limiting plate. The first solar panel includes a magnetic frame and solar cells, and the solar cells are arranged in the magnetic frame; when the first solar panel abuts against the folding limiting shaft, the magnetic attraction sheet has a set gap with the magnetic frame of the first solar panel, and the magnetic attraction sheet can generate a magnetic attraction force on the magnetic frame of the first solar panel.

[0018] As described above, the solar charging device of the electric bicycle of the present utility model has the following beneficial effects: when the solar battery pack is in the buckled and retracted state, since the center of gravity of the solar battery pack is lower than the rotation axis of the hinge between the first solar panel and the mounting frame, when the electric bicycle brakes, under the action of inertia, it can avoid the solar battery pack from rotating counterclockwise forward, thus avoiding the solar battery pack hitting the rider and preventing personal injury; at the same time, since the retraction limiting member is also lower than the rotation axis of the hinge between the first solar panel and the mounting frame, the retraction limiting member can prevent the solar battery pack from rotating clockwise forward, thereby avoiding the collision between the solar battery pack and the vehicle frame, and further avoiding damage to the solar battery pack and damage to the vehicle frame components, improving the safety during riding.

[0019] On the other hand, the present utility model also provides an electric bicycle, and the electric bicycle includes the above-mentioned solar charging device.

[0020] The beneficial effects of this electric bicycle are the same as those of the above-mentioned solar charging device, so they will not be elaborated here. Description of the Drawings

[0021] Figure 1 It shows a schematic structural view of the solar charging device according to Embodiment 1 of the present utility model when installed on an electric bicycle and in a retracted state.

[0022] Figure 2 It shows what is provided by the present utility model Figure 1 An enlarged view of part A in

[0023] Figure 3 It shows what is provided by the present utility model Figure 2 An isometric schematic view of

[0024] Figure 4 It shows what is provided by the present utility model Figure 3 An exploded view of

[0025] Figure 5 It shows a schematic structural view of the solar charging device according to Embodiment 1 of the present utility model when in an unfolded state.

[0026] Figure 6 It shows what is provided by the present utility model Figure 5 An enlarged view of part B in

[0027] Figure 7 It shows what is provided by the present utility model Figure 6 An isometric schematic view of

[0028] Figure 8It shows a schematic structural view of the solar charging device according to the second embodiment of the present invention when in the retracted state.

[0029] Figure 9 It shows what is provided by the present invention Figure 8 An enlarged view of part C in

[0030] Figure 10 It shows what is provided by the present invention Figure 9 An isometric schematic view of

[0031] Figure 11 It shows what is provided by the present invention Figure 10 An exploded view of

[0032] Figure 12 It shows a schematic structural view of the solar charging device according to the second embodiment of the present invention when in the deployed state.

[0033] Figure 13 It shows what is provided by the present invention Figure 12 An enlarged view of part D in

[0034] Figure 14 It shows what is provided by the present invention Figure 13 An isometric schematic view of

[0035] Figure 15 It shows a schematic structural view of the solar charging device according to the third embodiment of the present invention when in the retracted state.

[0036] Figure 16 It shows an isometric schematic view of the solar charging device according to the third embodiment of the present invention when in the retracted state.

[0037] Figure 17 It shows a schematic structural view of the solar charging device according to the fourth embodiment of the present invention when in the retracted state.

[0038] Figure 18 It shows a schematic structural view of the solar charging device according to the fourth embodiment of the present invention when in the deployed state.

[0039] Description of reference numerals

[0040] 100 Frame 01 Mounting bracket

[0041] 02 Rear support 03 Support frame

[0042] 031 Horizontal plate 032 Side plate

[0043] 04 Solar cell module 041 First solar panel

[0044] 042 Second solar panel 043 Third solar panel

[0045] 0430 Positioning Bead 0431 Depression

[0046] 040 Solar cell 0401 Magnetic frame

[0047] 05 The first chicken beak hinge 050 Chicken beak hinge shaft

[0048] 051 The first chicken beak hinge 052 The second chicken beak hinge

[0049] 06 Rivet 061 Retraction limit axis

[0050] 062 Expand limit axis 07 Second chicken beak hinge

[0051] 08 Limiting plate 09 Locking unit

[0052] 091 Lock fixing part 092 Lock movable part

[0053] 10 Magnetic sheet 11 Third chicken beak hinge DETAILED DESCRIPTION

[0054] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0055] In the description of the present utility model, it should be noted that, unless otherwise 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, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and 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 utility model can be understood according to specific circumstances.

[0056] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present utility model is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0057] Please refer to Figures 1 to 18 . It should be noted that the illustrations provided in this embodiment only schematically illustrate the basic concept of the present utility model. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0058] Embodiment 1

[0059] On the one hand, the present utility model provides a solar charging device for an electric bicycle, as Figure 1 and Figure 2 shown. The solar charging device includes a mounting bracket 01 and a solar cell group 04. Among them, the mounting bracket 01 is used to be connected to the frame 100 of the electric bicycle. The solar cell group 04 includes a first solar panel 041 and a second solar panel 042. Specifically, the first solar panel 041 and the second solar panel 042 are hinged, and the first solar panel 041 is also hinged to the mounting bracket 01, and the center of gravity of the solar cell group 04 when folded is lower than the rotation axis of the hinge between the first solar panel 041 and the mounting bracket 01; a folding limiting member and an unfolding limiting member are also provided on the mounting bracket 01. Specifically, the folding limiting member is also lower than the rotation axis of the hinge between the first solar panel 041 and the mounting bracket 01; when the solar cell group 04 is folded and buckled, the folding limiting member can limit the first solar panel 041, and when the solar cell group 04 is unfolded, the unfolding limiting member can limit the first solar panel 041.

[0060] When the present utility model is in use, the mounting bracket 01 of the solar charging device is connected to the frame 100 of the electric bicycle, and the solar cell group 04 is connected to the storage battery of the electric bicycle through an electric wire. When charging is required, as Figures 5 to 7As shown in the figure, rotate the solar cell pack 04 counterclockwise upward until the first solar panel 041 abuts against the unfolding limiting member. The unfolding limiting member limits the unfolded first solar panel 041, and then rotate the second solar panel 042 relative to the first solar panel 041 to unfold it. Thus, under the sunlight irradiation, the first solar panel 041 and the second solar panel 042 can generate electric energy to charge the battery of the electric bicycle. When charging is not required or during riding, as Figures 2 to 4 shown in the figure, fasten the first solar panel 041 and the second solar panel 042 together, and make the first solar panel 041 abut against the folding limiting member. The folding limiting member limits the first solar panel 041 in the folded state. When the solar cell pack 04 is in the fastened and folded state, since the center of gravity of the solar cell pack 04 is lower than the rotation axis of the hinge between the first solar panel 041 and the mounting bracket 01, when the electric bicycle brakes, under the action of inertia, it can avoid the solar cell pack 04 from rotating counterclockwise forward, thus avoiding the solar cell pack 04 hitting the rider and preventing personnel from being injured. At the same time, since the folding limiting member is also lower than the rotation axis of the hinge between the first solar panel 041 and the mounting bracket 01, the folding limiting member can prevent the solar cell pack 04 from rotating clockwise forward, further avoiding the collision between the solar cell pack 04 and the vehicle frame, and further avoiding damage to the solar cell pack and damage to the vehicle frame components, improving the safety during riding.

[0061] Specifically, as Figure 3 and Figure 4 shown in the figure, in the first embodiment, the mounting bracket 01 includes a backrest frame 02 and a support frame 03. The backrest frame 02 is connected to the vehicle frame 100 of the electric bicycle. Specifically, the support frame 03 includes a transverse plate 031 and two side plates 032. Among them, the transverse plate 031 is fixedly connected to the backrest frame 02, and the two side plates 032 are respectively connected to both ends of the transverse plate 031, and the two side plates 032 extend in the horizontal direction and are perpendicular to the transverse plate 031. Both sides of the first solar panel 041 are respectively hinged to the two side plates 032. The top of the first solar panel 041 is hinged to the top of the second solar panel 042 through a first chicken beak hinge 05, and the first solar panel 041 is located inside the second solar panel 042, that is, the first solar panel 041 is closer to the transverse plate 031 relative to the second solar panel 042.

[0062] Specifically, in the first embodiment, the first solar panel 041 is hinged to the side plate 032 through a rivet 06. And as Figure 2As shown, in this embodiment, the rotation axis of the hinge joint between the first solar panel 041 and the second solar panel 042 is higher than the rotation axis of the hinge joint between the first solar panel 041 and the mounting bracket 01.

[0063] Specifically, in this embodiment, as Figure 4 shown, the first chicken beak hinge 05 includes a first chicken beak hinge plate 051 and a second chicken beak hinge plate 052. The first chicken beak hinge plate 051 is fixedly arranged on the side of the first solar panel 041, and the second chicken beak hinge plate 052 is fixedly arranged on the side of the second solar panel 042. The first chicken beak hinge plate 051 and the second chicken beak hinge plate 052 are hinged by a chicken beak hinge shaft 050. Specifically, the first chicken beak hinge plate 051 is fixedly arranged on the side of the first solar panel 041 by rivets, and the second chicken beak hinge plate 052 is fixedly arranged on the side of the second solar panel 042 by rivets.

[0064] Furthermore, as Figures 3 to 4 shown, in the first embodiment, the closing limit member includes a closing limit shaft 061 arranged on the side plate 032. The closing limit shaft 061 is arranged inside the first solar panel 041, that is, the closing limit shaft 061 is closer to the horizontal plate 031 relative to the first solar panel 041. When the first solar panel 041 and the second solar panel 042 are closed and folded, that is, when both are in a vertical state, the first solar panel 041 abuts against the closing limit shaft 061. Specifically, the closing limit shaft 061 can be a rivet.

[0065] Furthermore, as Figures 5 to 7 shown, in the first embodiment, the unfolding limit member includes an unfolding limit shaft 062 fixedly arranged on the side plate 032. When the first solar panel 041 and the second solar panel 042 are unfolded, the first solar panel 042 abuts against the unfolding limit shaft at a certain angle with the horizontal direction. Specifically, the unfolding limit shaft 062 can be a rivet.

[0066] Furthermore, as Figures 3 to 7As shown, in the first embodiment, the solar cell pack 04 further includes a third solar panel 043. The bottom of the third solar panel 043 is hinged to the bottom of the second solar panel 042 through a second chicken beak hinge 07. The third solar panel 043 is located outside the second solar panel 042, that is, the third solar panel 043 is farther from the transverse plate 031 relative to the second solar panel 042. And a locking unit 09 is further provided between the first solar panel 041 and the third solar panel 042. When the first solar panel 041, the second solar panel 042, and the third solar panel 043 are buckled and folded, the locking unit 09 can lock the third solar panel 043 relative to the first solar panel 041. Through the setting of the third solar panel 043, the light-receiving area of the solar cell can be increased, and the charging ability of the solar cell pack can be improved. As Figure 5 shown, when the first solar panel 041, the second solar panel 042, and the third solar panel 043 are unfolded, the third solar panel 043 can be placed on the armrest of the vehicle frame 100.

[0067] Specifically, in this embodiment, the length of the second solar panel 042 is the same as that of the third solar panel 043, and the lengths of the second solar panel 042 and the third solar panel 043 are both greater than the length of the first solar panel 041.

[0068] Preferably, as Figure 4 shown, in the first embodiment, the locking unit 09 includes a lock catch fixing part 091 fixedly arranged on the first solar panel 041 and a lock catch movable part 092 fixedly arranged on the third solar panel 043. When the first solar panel 041, the second solar panel 042, and the third solar panel 043 are buckled and folded, the lock catch movable part 092 is buckled with the lock catch fixing part 091.

[0069] Further, when the solar cell pack is buckled and folded, in order to improve the fixing stability of the third solar panel 043, in the first embodiment, a positioning bead 0430 is further provided on the side of the solar cell pack 04. Correspondingly, a pit 0431 matching the positioning bead 0430 is provided on the side plate 032. When the solar cell pack is folded, the positioning bead 0430 on the solar cell pack 04 can be embedded in the pit 0431 on the side plate 032. As a preference, the positioning bead 0430 can be arranged on the outermost solar panel of the solar cell pack 04. Specifically, in the first embodiment, as Figure 4As shown, the positioning bead 0430 is arranged on the side of the third solar panel 043. Correspondingly, a pit 0431 that cooperates with the positioning bead 0430 is provided on the side plate 032. When the first solar panel 041, the second solar panel 042, and the third solar panel 043 are buckled and folded, the positioning bead 0430 on the third solar panel 043 can be embedded in the pit 0431 on the side plate 032. Of course, in other alternative embodiments, those skilled in the art can also arrange the positioning bead 0430 on the first solar panel 041 or on the second solar panel 042 as needed; or arrange the positioning bead 0430 on the first solar panel 041, the second solar panel 042, and the third solar panel 043.

[0070] Embodiment 2

[0071] As Figures 8 to 14 shown, the difference between this second embodiment and the above-mentioned first embodiment is that: in the above-mentioned first embodiment, the folding limiting member is the folding limiting shaft 061, while in this second embodiment, as Figure 10 shown, the folding limiting member includes a limiting plate 08, and the limiting plate 08 is connected to the backrest frame 02. When the first solar panel 041, the second solar panel 042, and the third solar panel 043 are buckled and folded, the first solar panel 041 can abut against the limiting plate 08.

[0072] Furthermore, in order to improve the stability of the solar cell group 04 when it is buckled and folded, preferably, as Figure 10 and Figure 11 shown, in this second embodiment, a magnetic attraction sheet 10 is further provided on the limiting plate 08. Correspondingly, the first solar panel 041 includes a magnetic frame and solar cells, and the solar cells are arranged in the magnetic frame. When the first solar panel 041, the second solar panel 041, and the third solar panel 043 are buckled and folded, the magnetic attraction sheet 10 can be attracted to the magnetic frame of the first solar panel 041.

[0073] In addition, the difference between this second embodiment and the above-mentioned first embodiment also lies in the different locking units 09. In the above-mentioned first embodiment, the locking unit 09 is a lock fixing part 091 fixedly arranged on the first solar panel 041 and a lock movable part 092 fixedly arranged on the third solar panel 043. The third solar panel is locked to the first solar panel through the cooperation of the lock fixing part 091 and the lock movable part 092.

[0074] While in this second embodiment, as Figure 14 and Figure 15As shown, the first solar panel 041, the second solar panel 042, and the third solar panel 043 all include a magnetic frame 0401 and solar cells 040. The solar cells 040 are disposed in the magnetic frame 0401. When the first solar panel 041, the second solar panel 042, and the third solar panel 043 are buckled and folded, the magnetic frames of the first solar panel 041, the second solar panel 042, and the third solar panel 043 can attract each other. That is, in the second embodiment, the magnetic frames of the first solar panel 041, the second solar panel 042, and the third solar panel 043 constitute the locking unit.

[0075] Embodiment Three

[0076] As Figure 15 and Figure 16 shown, the difference between this Embodiment Three and Embodiment Two lies only in the different folding limit members. In the second embodiment, the folding limit member includes a limit plate 08 and a magnetic attraction piece 10 disposed on the limit plate 08. In this Embodiment Three, as Figures 15 to 16 shown, the folding limit member includes a folding limit shaft 061 disposed on the side plate 032 and a limit plate 08 disposed on the backrest 02, and a magnetic attraction piece 10 is provided on the limit plate 08. Correspondingly, the first solar panel 041 includes a magnetic frame and solar cells, and the solar cells are disposed in the magnetic frame. When the solar cell group 04 is folded, that is, when the first solar panel 041 abuts against the folding limit shaft 061, the folding limit shaft 061 limits the first solar panel 041 so that there is a set gap between the magnetic attraction piece 10 and the magnetic frame of the first solar panel 041, and the magnetic attraction piece 10 can generate a magnetic attraction force on the magnetic frame of the first solar panel. Through this structural design, without the magnetic frame of the first solar panel contacting the magnetic attraction piece 10, the magnetic attraction piece 10 can still generate a magnetic attraction force on the magnetic frame of the first solar panel, thereby avoiding the collision force when the magnetic frame of the first solar panel contacts the magnetic attraction piece 10 compared with the above-mentioned Embodiment Two, and further avoiding component damage or damage to the surface protective layer of the magnetic frame.

[0077] Embodiment Four

[0078] As Figure 17 and Figure 18As shown in the figure, the difference between the fourth embodiment and the second embodiment described above is that the solar cell pack 04 further includes a fourth solar panel 044. The top of the fourth solar panel 044 is hinged to the top of the third solar panel 043 through a third chicken beak hinge 11. The fourth solar panel 044 is located outside the third solar panel 043, that is, the fourth solar panel 044 is farther from the transverse plate 031 than the third solar panel 043. A locking unit 09 is further provided between the first solar panel 041 and the fourth solar panel 044. The locking unit 09 includes a locking buckle fixing part 091 fixedly arranged on the first solar panel 041 and a locking buckle movable part 092 fixedly arranged on the fourth solar panel 044. When the first solar panel 041, the second solar panel 042, the third solar panel 043 and the fourth solar panel 044 are buckled and folded, the locking buckle movable part 092 is buckled with the locking buckle fixing part 091.

[0079] On the other hand, the present invention also provides an electric bicycle, which includes the solar charging device of the electric bicycle described above. The beneficial effects of this electric bicycle are the same as those of the above-mentioned solar charging device, so they will not be elaborated here.

[0080] In summary, for the solar charging device of the electric bicycle and the electric bicycle of the present invention, when the electric bicycle brakes, it can prevent the solar cell pack from flipping counterclockwise forward due to inertia, thus avoiding hitting the rider and preventing personal injury. At the same time, by limiting the movement direction of the solar cell pack through the folding limiting member, it can also prevent the solar cell pack from rotating clockwise forward, thereby preventing the solar cell pack from colliding with the vehicle frame and avoiding damage to the solar cell pack and the vehicle frame components, improving the safety during riding. Therefore, the present invention effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0081] The above embodiments are only used to illustrate the principle and effects of the present invention, rather than to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A solar charging device for an electric bicycle, characterized in that: include: Mounting frame; A solar cell group, the solar cell group comprising a first solar cell panel and a second solar cell panel, the first solar cell panel being hinged to the second solar cell panel, wherein the first solar cell panel is hinged to the mounting frame, and the center of gravity of the solar cell group when folded is lower than the rotation axis of the hinged connection between the first solar cell panel and the mounting frame; The mounting frame is provided with a folding limiter and an unfolding limiter, and the folding limiter is also lower than the rotation axis at the hinge between the first solar cell panel and the mounting frame; when the solar cell group is folded, the folding limiter limits the first solar cell panel, and when the solar cell group is unfolded, the unfolding limiter limits the first solar cell panel.

2. A solar charging device for an electric bicycle according to claim 1, characterized in that: The mounting frame includes a rear frame and a support frame, the rear frame is connected to the frame of the electric bicycle; the support frame includes a transverse plate and two side plates, the transverse plate is fixedly connected to the rear frame, the two side plates are respectively connected to the two ends of the transverse plate, and the two side plates extend in the horizontal direction and are perpendicular to the transverse plate; the two sides of the first solar panel are respectively hinged to the two side panels, the top of the first solar panel and the top of the second solar panel are hinged by a first chicken-beak hinge, and the first solar panel is located on the inner side of the second solar panel.

3. A solar charging device for an electric bicycle according to claim 1, characterized in that: The rotation axis center at the hinged connection between the first solar panel and the second solar panel is higher than the rotation axis center at the hinged connection between the first solar panel and the mounting frame.

4. A solar charging device for an electric bicycle according to claim 2, characterized in that: The folding limit member includes a folding limit shaft arranged on the side plate, and when the solar cell group is folded, the first solar cell panel abuts against the folding limit shaft.

5. The solar charging device for an electric bicycle according to claim 2, characterized in that: The folding limit member comprises a limit plate, and the limit plate is connected to the rear support frame. When the solar cell group is folded, the first solar cell panel abuts against the limit plate.

6. A solar charging device for an electric bicycle according to claim 2, 4 or 5, characterized in that: The deployment limiting member includes a deployment limiting shaft fixedly arranged on the side panel, and when the solar cell group is deployed, the first solar cell panel abuts against the deployment limiting shaft.

7. A solar charging device for an electric bicycle according to claim 5, characterized in that: The limiting plate is provided with a magnetic sheet, the first solar panel comprises a magnetic frame and a solar cell, and the solar cell is arranged in the magnetic frame; when the first solar panel and the second solar panel are folded together, the magnetic sheet is attracted to the magnetic frame of the first solar panel.

8. The solar charging device for an electric bicycle according to claim 1, characterized in that: The solar cell group also includes a third solar panel, the bottom of the third solar panel is hinged to the bottom of the second solar panel by a second chicken-beak hinge, and the third solar panel is located on the outside of the second solar panel; a locking unit is provided between the first solar panel and the third solar panel, and when the first solar panel, the second solar panel and the third solar panel are folded together, the locking unit locks the third solar panel with the first solar panel.

9. A solar charging device for an electric bicycle according to claim 8, characterized in that: The locking unit includes a locking portion fixedly disposed on the first solar panel and a locking movable portion fixedly disposed on the third solar panel. When the first solar panel, the second solar panel and the third solar panel are folded together, the locking movable portion is engaged with the locking portion.

10. A solar charging device for an electric bicycle according to claim 8, characterized in that: The first solar panel, the second solar panel and the third solar panel all include a magnetic frame and solar cells, and the solar cells are arranged in the magnetic frame; when the solar cell group is folded, the magnetic frame of the first solar panel, the magnetic frame of the second solar panel and the magnetic frame of the third solar panel are attracted to each other.

11. A solar charging device for an electric bicycle according to claim 2, characterized in that: Positioning beads are arranged on the sides of the solar cell group, and recesses matching with the positioning beads are arranged on the side plates; when the solar cell group is folded, the positioning beads are embedded in the recesses.

12. A solar charging device for an electric bicycle according to claim 1, characterized in that: The solar cell group also includes a third solar panel and a fourth solar panel, wherein the bottom of the third solar panel is hinged to the bottom of the second solar panel by a second chicken-beak hinge, the top of the fourth solar panel is hinged to the top of the third solar panel by a third chicken-beak hinge, and the fourth solar panel is located on the outside of the third solar panel; a locking unit is provided between the first solar panel and the fourth solar panel, and when the first solar panel, the second solar panel, the third solar panel and the fourth solar panel are folded together, the locking unit locks the fourth solar panel with the first solar panel.

13. A solar charging device for an electric bicycle according to claim 12, characterized in that: The locking unit includes a locking fixed portion fixedly arranged on the first solar panel and a locking movable portion fixedly arranged on the fourth solar panel, and when the first solar panel, the second solar panel, the third solar panel and the fourth solar panel are folded together, the locking movable portion is engaged with the locking fixed portion.

14. A solar charging device for an electric bicycle according to claim 4, characterized in that: The folding limit member also includes a limit plate, which is connected to the back frame, and a magnetic sheet is provided on the limit plate. The first solar panel includes a magnetic frame and a solar cell, and the solar cell is arranged in the magnetic frame. When the first solar panel abuts against the folding limit shaft, a set gap is formed between the magnetic sheet and the magnetic frame of the first solar panel, and the magnetic sheet generates a magnetic attraction force on the magnetic frame of the first solar panel.

15. An electric bicycle, characterized in that: The electric bicycle comprises the solar charging device for an electric bicycle as claimed in any one of claims 1 to 14.

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