Solar electric bicycle

Abstract

The utility model discloses a solar electric bicycle. The solar electric bicycle comprises a bicycle body, a battery, a rear seat, a swing arm and at least one solar battery. The battery is installed on the vehicle body and used for providing electric energy for the vehicle body. The rear seat is installed on the vehicle body and used for carrying people. The swing arm rear seat is provided with a first side and a second side which are back to back in the width direction of the bicycle body, and the swing arm is located on the first side of the rear seat and rotatably connected to the rear seat in the length direction of the bicycle body. The solar cell is installed on the swing arm and electrically connected to the battery, and the light receiving face of the solar cell is parallel to the first side face of the vehicle body. The swing arm has a storage state and a stretching state, and when the swing arm is in the storage state, the solar cell is close to the first side face of the vehicle body. When the swing arm is in the stretching state, the solar cell is away from the first side face of the vehicle body. According to the technical scheme, the rear seat of the electric bicycle can be used for carrying people, and the space of the rear seat can be used for placing the solar cell.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, and in particular to a solar-powered electric bicycle. Background Technology

[0002] With the advancement of science and the development of society, people are paying more and more attention to the use of renewable energy, which has led to the emergence of solar-powered electric bicycles.

[0003] Current solar-powered electric bicycles install solar cells on the back seat to make full use of solar energy. However, this method occupies the back seat, making it impossible for electric bicycles that could originally carry passengers to carry passengers. Utility Model Content

[0004] The main purpose of this invention is to propose a solar-powered electric bicycle that allows the rear seat of the electric bicycle to both carry a person and utilize its space to house solar cells.

[0005] To achieve the above objectives, the present invention proposes a solar-powered electric bicycle, comprising:

[0006] Vehicle body;

[0007] A battery is installed in the vehicle body and is used to provide electrical energy to the vehicle body;

[0008] The rear seat is installed on the vehicle body and is used for carrying passengers;

[0009] A swing arm, wherein the rear seat has a first side and a second side facing away from each other in the width direction of the vehicle body, the swing arm is located on the first side of the rear seat and is rotatably connected to the rear seat about the length direction of the vehicle body; and

[0010] At least one solar cell is mounted on the swing arm and electrically connected to the battery, wherein the light-receiving surface of the solar cell is parallel to the length direction of the vehicle body;

[0011] The swing arm has a retracted state and an extended state. When the swing arm is in the retracted state, the solar cell is close to the first side of the vehicle body. When the swing arm is in the extended state, the solar cell is away from the first side of the vehicle body.

[0012] In one embodiment, the swing arm includes:

[0013] The mounting body is rotatably connected to the rear seat, and the solar cell is mounted on the mounting body; and

[0014] At least one limiting member is fixedly connected to the mounting body, and the limiting member is detachably connected to the rear seat to restrict the rotation of the swing arm.

[0015] In one embodiment, the rear seat includes a seat body and at least one bushing. The seat body is fixedly installed on the vehicle body, and the bushing is fixedly installed on the seat body. A first limiting groove is provided at the first end of the bushing.

[0016] The mounting body is provided with at least one rotating shaft, which is rotatably disposed within the bushing. The limiting member is fixedly connected to the rotating shaft and can be engaged in the first limiting groove to keep the swing arm in an extended state.

[0017] In one embodiment, the bushing includes a sleeve and a baffle. The first end of the sleeve is provided with the first limiting groove. The baffle is fixedly connected inside the sleeve and blocks the sleeve. The baffle has a through hole.

[0018] The swing arm further includes an elastic element and a stop element. The stop element includes a blocking part and a connecting part. The blocking part is fixedly connected to the connecting part. The blocking part is located inside the second end of the sleeve. The connecting part passes through the through hole and is fixedly connected to the end of the rotating shaft. The elastic element is located between the blocking part and the baffle, and abuts against the blocking part and the baffle respectively.

[0019] In one embodiment, the elastic element is a spring, the abutment element is a bolt, and the end of the rotating shaft facing the baffle is provided with a threaded hole. The bolt's screw passes through the through hole and is threadedly connected to the threaded hole.

[0020] In one embodiment, the first end of the bushing is further provided with a second limiting groove, the second limiting groove being spaced apart from the first limiting groove, and the limiting member being able to be engaged in the second limiting groove to keep the swing arm in a retracted state;

[0021] The limiting member can switch between the first limiting groove and the second limiting groove, so that the swing arm can switch between a retracted state and an extended state.

[0022] In one embodiment, the seat body has a first side and a second side in the width direction of the solar-powered electric bicycle, the first side of the seat body is provided with two bushings, and the second side of the seat body is provided with two bushings;

[0023] In the two bushings on the same side of the seat body, the two bushings are coaxially arranged in the length direction of the solar electric bicycle;

[0024] The swing arm is provided in two parts, and the mounting body of each swing arm is provided with two rotating shafts. The two rotating shafts on the same mounting body are coaxially arranged, and each swing arm is provided with at least one solar cell.

[0025] The two mounting bodies are located on the first and second sides of the base body, respectively, and the rotating shafts of the two mounting bodies are inserted into the bushings of the base body in a one-to-one correspondence.

[0026] In one embodiment, the solar-powered electric bicycle further includes a connector and a connector head, the connector being electrically connected to the battery and the connector head being electrically connected to each of the solar cells, the connector head being pluggable into the connector.

[0027] In one embodiment, the solar-powered electric bicycle further includes a connector adapter, to which the connector head can be plugged, and the connector adapter is used to connect to external devices.

[0028] In one embodiment, the solar cell is a perovskite solar cell.

[0029] In the technical solution of this utility model, the swing arm is located on the first side of the rear seat and is rotatably connected to the rear seat along the length direction of the vehicle body. The light-receiving surface of the solar cell is parallel to the length direction of the vehicle body, so that the light-receiving surface of the solar cell can be flipped up and down. When the solar electric bicycle needs to carry a passenger, the swing arm can be rotated to the storage state. At this time, the solar cell is close to the first side of the vehicle body and will not occupy a large area of ​​the rear seat space, so that the rear seat can carry a passenger. When the solar electric bicycle needs to be charged by solar energy, the swing arm is rotated to the extended state, and the solar cell is away from the first side of the vehicle body, so that the light-receiving surface of the solar cell is unfolded, thereby utilizing the space of the rear seat so that the solar cell can receive more sunlight and increase power generation. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 A schematic diagram of a structure of an embodiment of the solar-powered electric bicycle provided by this utility model;

[0032] Figure 2 for Figure 1 Schematic diagram of the middle and rear seats;

[0033] Figure 3 for Figure 1 A schematic diagram of the structure in which the central swing arm and solar cells are mounted on the rear seat;

[0034] Figure 4 for Figure 3 Schematic diagram of the structure at point A;

[0035] Figure 5 for Figure 3 A partial sectional view at point A in the middle;

[0036] Figure 6 for Figure 5 Schematic diagram of the middle sleeve;

[0037] Figure 7 for Figure 1 Another viewpoint of the structural diagram showing the central swing arm and solar cells mounted on the rear seat.

[0038] Explanation of icon numbers:

[0039] 100. Solar-powered electric bicycle; 10. Vehicle body; 30. Rear seat; 31. Seat body; 33. Bushing; 331. Sleeve; 331a. First limiting groove; 331b. Second limiting groove; 333. Baffle; 333a. Through hole; 50. Swing arm; 51. Mounting body; 511. Shaft; 511a. Threaded hole; 53. Limiting component; 55. Elastic component; 57. Abutting component; 571. Blocking part; 573. Connecting part; 70. Solar cell.

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0042] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0043] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0044] This utility model proposes a solar-powered electric bicycle. It should be noted that the solar-powered electric bicycle of this application may include a drive motor, battery, controller, and other structures to achieve the function of driving the bicycle. Detailed structural features of these components are within the understanding of those skilled in the art and will not be elaborated here. This application only describes the related structures of the solar cell and the rear seat in its embodiments.

[0045] Please see Figure 1 and Figure 3 In one embodiment of this utility model, the solar-powered electric bicycle 100 includes a main body 10, a battery, a rear seat 30, a swing arm 50, and at least one solar cell 70. The battery is mounted on the main body 10 and provides electrical energy to the main body 10. The rear seat 30 is mounted on the main body 10 and is used to carry a passenger. The swing arm 50 and the rear seat 30 are positioned along the width direction of the main body 10. Figure 1 In the X direction, it has a first side and a second side facing away from each other, the swing arm 50 is located on the first side of the rear seat 30, and in the length direction around the vehicle body 10 ( Figure 1 The solar cell 70 is rotatably connected to the rear seat 30 (in the Y direction). It is mounted on the swing arm 50 and electrically connected to the battery. The light-receiving surface of the solar cell 70 is parallel to the first side of the vehicle body 10. The swing arm 50 has a retracted state and an extended state. When the swing arm 50 is in the retracted state, the solar cell 70 is close to the first side of the vehicle body 10. When the swing arm 50 is in the extended state, the solar cell 70 is away from the first side of the vehicle body 10.

[0046] Understandably, the swing arm 50 is located on the first side of the rear seat 30 and is rotatably connected to the rear seat 30 along the length of the vehicle body 10. The light-receiving surface of the solar cell 70 is parallel to the length of the vehicle body 10, allowing the light-receiving surface of the solar cell 70 to be flipped up and down. When the solar electric bicycle 100 needs to carry a passenger, the swing arm 50 can be rotated to the retracted state. At this time, the solar cell 70 is close to the first side of the vehicle body 10 and will not occupy a large area of ​​the rear seat 30 space, so that the rear seat 30 can carry a passenger. When the solar electric bicycle 100 needs to be charged by solar energy, the swing arm 50 is rotated to the extended state, and the solar cell 70 is moved away from the first side of the vehicle body 10, so that the light-receiving surface of the solar cell 70 is unfolded, thereby utilizing the space of the rear seat 30 so that the solar cell 70 can receive more sunlight and increase power generation.

[0047] It should be noted that the vehicle body 10 includes at least a frame, handlebars, a seat, two wheels, a drive motor, and a controller. The handlebars, seat, two wheels, drive motor, and controller are all mounted on the frame. The drive motor receives battery power from the controller to drive the wheels. The drive motor can be a rear wheel hub motor, a mid-mounted motor, or other effective motor. The technology of using solar cells 70 to generate electricity from sunlight is understood by those skilled in the art and will not be elaborated upon here.

[0048] The swing arm 50 is rotatably connected to the rear seat 30 along the length of the vehicle body 10. This connection can be achieved by a hinge, a pin, or other effective rotatable connection methods.

[0049] The number of solar cells 70 installed on the swing arm 50 can be 1, 2, 3, 4, 5, etc., which can be set according to actual needs.

[0050] Please see Figure 3 , Figure 4 as well as Figure 7 In one embodiment of this utility model, the swing arm 50 includes a mounting body 51 and at least one limiting member 53. The mounting body 51 is rotatably connected to the rear seat 30, and the solar cell 70 is mounted on the mounting body 51. The limiting member 53 is fixedly connected to the mounting body 51 and is detachably connected to the rear seat 30 to restrict the rotation of the swing arm 50.

[0051] Understandably, the detachable connection of the limiting member 53 to the rear seat 30 can effectively restrict the rotation of the swing arm 50, thereby allowing the swing arm 50 to remain in an extended or retracted state.

[0052] It should be noted that the limiting member 53 can be detachably connected to the rear seat 30 by a snap-fit ​​connection, a pin connection, or other effective detachable connection methods.

[0053] The number of limiters 53 set on the swing arm 50 can be 1, 2, 3, 4, etc., and can be set according to actual needs.

[0054] Please see Figures 3 to 7 In one embodiment of this utility model, the rear seat 30 includes a seat body 31 and at least one bushing 33. The seat body 31 is fixedly installed on the vehicle body 10, and the bushing 33 is fixedly installed on the seat body 31. The first end of the bushing 33 is provided with a first limiting groove 331a. The mounting body 51 is provided with at least one rotating shaft 511, which is rotatably disposed in the bushing 33. The limiting member 53 is fixedly connected to the rotating shaft 511 and can be engaged in the first limiting groove 331a to keep the swing arm 50 in an extended state.

[0055] Understandably, the first end of the bushing 33 is provided with a first limiting groove 331a, and the limiting member 53 is fixedly connected to the rotating shaft 511. The limiting member 53 can be snapped into the first limiting groove 331a, thereby restricting the rotation of the mounting body 51 so as to keep the swing arm 50 in the extended state. This method is simple in structure and stable and reliable.

[0056] It should be noted that the number of bushings 33 set in the main body 31 can be 1, 2, 3, 4, 5, 6, etc., which can be set according to actual needs.

[0057] The number of rotating shafts 511 set in the mounting body 51 can be 1, 2, 3, 4, 5, 6, etc., which can be set according to actual needs.

[0058] Please see Figure 5 and Figure 6 In one embodiment of this utility model, the bushing 33 includes a sleeve 331 and a baffle 333. The first end of the sleeve 331 is provided with a first limiting groove 331a. The baffle 333 is fixedly connected inside the sleeve 331 and blocks the sleeve 331. The baffle 333 has a through hole 333a. The swing arm 50 also includes an elastic member 55 and an abutting member 57. The abutting member 57 includes a blocking part 571 and a connecting part 573. The blocking part 571 and the connecting part 573 are fixedly connected. The blocking part 571 is located inside the second end of the sleeve 331. The connecting part 573 passes through the through hole 333a and is fixedly connected to the end of the rotating shaft 511. The elastic member 55 is located between the blocking part 571 and the baffle 333 and abuts against the blocking part 571 and the baffle 333 respectively.

[0059] Understandably, by providing an elastic element 55 between the abutment 571 and the baffle 333, when the swing arm 50 is pulled to move the rotating shaft 511 away from the sleeve 331, the rotating shaft 511 drives the abutment 57 to compress the elastic element 55, and the swing arm 50 is in an extended state to allow the solar cell 70 to flip and unfold. At this time, the limiting member 53 is aligned with the first limiting groove 331a. When the swing arm 50 is released, the first limiting member 53 is engaged in the first limiting groove 331a under the elastic force of the elastic element 55. Furthermore, this arrangement can effectively reduce the probability of the first limiting member 53 disengaging from the first limiting groove 331a, thereby improving the stability of the swing arm 50 in the extended state.

[0060] It should be noted that the elastic element 55 can be a spring; it can be elastic rubber; or it can be other effective elastic elements 55.

[0061] Please see Figure 5 In one embodiment of this utility model, the elastic element 55 is a spring, the abutment element 57 is a bolt, and the end of the rotating shaft 511 facing the baffle 333 is provided with a threaded hole 511a. The bolt's screw passes through the spring and the through hole 333a in sequence, and is threadedly connected to the threaded hole 511a. It can be understood that by having the bolt's screw pass through the spring and the through hole 333a in sequence, and is threadedly connected to the threaded hole 511a, the installation or removal of the spring can be facilitated, and the structure is simple and easy to manufacture.

[0062] Please see Figure 2 , Figure 5 as well as Figure 6 In one embodiment of this utility model, the first end of the bushing 33 is further provided with a second limiting groove 331b, which is spaced apart from the first limiting groove 331a. The limiting member 53 can be engaged in the second limiting groove 331b to keep the swing arm 50 in a retracted state. The limiting member 53 can switch between the first limiting groove 331a and the second limiting groove 331b, allowing the swing arm 50 to switch between a retracted state and an extended state. It can be understood that by providing the first limiting groove 331a and the second limiting groove 331b at the first end of the bushing 33, the swing arm 50 can be stably maintained in either a retracted or extended state.

[0063] Furthermore, the first end of the bushing 33 is provided with two first limiting grooves 331a, which are arranged opposite to each other. The second end of the bushing 33 is provided with two second limiting grooves 331b, which are arranged opposite to each other. The rotating shaft 511 is provided with two limiting members 53. In the same rotating shaft 511, the two limiting members 53 are arranged back to back. When the two limiting members 53 of the rotating shaft 511 are inserted into the two first limiting grooves 331a of the bushing 33, the swing arm 50 is in the extended state; when the two limiting members 53 of the rotating shaft 511 are inserted into the two second limiting grooves 331b of the bushing 33, the swing arm 50 is in the retracted state. This arrangement can further make the swing arm 50 more stable and reliable in the retracted or extended state, and further improve the load-bearing capacity of the swing arm 50.

[0064] Furthermore, within the same bushing 33, the line connecting the two first limiting grooves 331a is perpendicular to the line connecting the two second limiting grooves. Both first limiting grooves 331a are located in the width direction of the vehicle body 10, and both second limiting grooves 331b are located in the height direction of the vehicle body 10. The swing arm 50 has a bearing surface on the side opposite to the vehicle body 10, and the solar cell 70 is fixedly mounted on the bearing surface. Within the same swing arm 50, the line connecting the two limiting members 53 is parallel to the bearing surface. Thus, when the limiting member 53 is engaged in the first limiting groove 331a, the bearing surface is parallel to the width direction of the vehicle body 10, allowing the solar cell 70 mounted on the bearing surface to be parallel to the width direction of the vehicle body 10. This allows the solar cell 70 to approach or be horizontal when extended, enabling it to receive more sunlight. Furthermore, when the limiting member 53 is engaged in the second limiting groove 331b, the bearing surface is parallel to the height direction of the vehicle body 10, thereby allowing the solar cell 70 mounted on the bearing surface to be parallel to the height direction of the vehicle body 10. In this way, the solar cell 70 can fit snugly against the vehicle body, thereby improving the comfort of passengers on the rear seat 30. Moreover, the solar cell 70 can also act as a protective plate, preventing passengers on the rear seat 30 from accidentally touching the wheel spokes to some extent, thus improving the safety of the bicycle with the solar cell 70.

[0065] Please see Figure 1 , Figure 2 as well as Figure 5In one embodiment of this utility model, the seat body 31 has a first side and a second side in the width direction of the solar-powered electric bicycle 100. The first side of the seat body 31 is provided with two bushings 33, and the second side of the seat body 31 is also provided with two bushings 33. The two bushings 33 on the same side of the seat body 31 are coaxially arranged in the length direction of the solar-powered electric bicycle 100. Two swing arms 50 are provided, and each swing arm 50 has a mounting body 51 with two rotating shafts 511. The two rotating shafts 511 on the same mounting body 51 are coaxially arranged, and each swing arm 50 is provided with at least one solar cell 70. The two mounting bodies 51 are respectively located on the first side and the second side of the seat body 31, and the rotating shafts 511 of the two mounting bodies 51 are inserted one-to-one into the bushings 33 of the seat body 31.

[0066] Understandably, by providing two rotating shafts 511 on the mounting body 51 of each swing arm 50, and having the rotating shafts 511 of the mounting body 51 correspondingly inserted into the bushings 33 of the seat body 31, the reliability and stability of the rotational connection of the swing arm 50 can be improved, as well as the load-bearing capacity of the swing arm 50. The two swing arms 50 are located on the first and second sides of the seat body 31 respectively, which further utilizes the space of the rear seat 30, allowing the solar-powered electric bicycle 100 to accommodate more solar cells 70, thereby further improving power generation efficiency.

[0067] Please see Figure 1 In one embodiment of this utility model, the solar-powered electric bicycle 100 further includes a connector and a connector head. The connector is electrically connected to the battery, and the connector head is electrically connected to each solar cell 70. The connector head can be plugged into the connector. This configuration allows the connection between the solar cell 70 and the battery to be disconnected, so that the battery can be quickly charged using a charger through the connector.

[0068] Please see Figure 1 In one embodiment of this utility model, the solar-powered electric bicycle 100 further includes a connector adapter. A connector head can be plugged into the connector adapter, which is used to connect to an external device. With this configuration, an external device can be connected via the connector adapter, thereby enabling the external device to connect to the solar cell 70, and allowing the solar cell 70 to charge the external device. For example, the connector adapter can be a Type-C connector adapter; it can also be a Micro-USB connector adapter; or it can be any other effective connector adapter.

[0069] It should be noted that the technology used by the connector converter to achieve connector conversion is existing technology and will not be elaborated here.

[0070] Please see Figure 1In one embodiment of this invention, the solar cell 70 is a perovskite solar cell 70. The perovskite solar cell 70 exhibits excellent low-light performance, generating electricity even on cloudy days or indoors, thus enabling the solar-powered electric bicycle 100 to generate electricity even under cloudy days or indoor conditions.

[0071] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A solar electric bicycle, characterized by, The utility model relates to a solar electric bicycle, which comprises a vehicle body, a battery mounted on the vehicle body and used to provide electric energy for the vehicle body, a rear seat mounted on the vehicle body and used to carry people, a swing arm located on the first side of the rear seat and rotatably connected to the rear seat around the length direction of the vehicle body, and at least one solar cell mounted on the swing arm and electrically connected to the battery, the light-receiving surface of the solar cell being parallel to the length direction of the vehicle body. The swing arm has a storage state and an extended state, and when the swing arm is in the storage state, the solar cell is close to the first side of the vehicle body; when the swing arm is in the extended state, the solar cell is away from the first side of the vehicle body. The swing arm comprises a mounting body rotatably connected to the rear seat, and the solar cell is mounted on the mounting body; and at least one limiting piece fixedly connected to the mounting body, the limiting piece being detachably connected to the rear seat to limit the rotation of the swing arm. The rear seat comprises a seat body fixedly mounted on the vehicle body and at least one shaft sleeve fixedly mounted on the seat body, and the first end of the shaft sleeve is provided with a first limiting groove. The mounting body is provided with at least one rotating shaft rotatably arranged in the shaft sleeve, the limiting piece is fixedly connected to the rotating shaft, and the limiting piece can be clamped in the first limiting groove to keep the swing arm in the extended state. The shaft sleeve comprises a sleeve and a baffle, the first end of the sleeve is provided with the first limiting groove, the baffle is fixedly connected in the sleeve and blocks the sleeve, and the baffle is provided with a through hole. The swing arm further comprises a resilient piece and an abutting piece, the abutting piece comprises an abutting portion and a connecting portion, the abutting portion is fixedly connected to the connecting portion, the abutting portion is located in the second end of the sleeve, the connecting portion is fixedly connected to the end portion of the rotating shaft through the through hole, and the resilient piece is located between the abutting portion and the baffle and abuts against the abutting portion and the baffle respectively. The resilient piece is a spring, the abutting piece is a bolt, one end of the rotating shaft towards the baffle is provided with a threaded hole, and the threaded rod of the bolt passes through the spring and the through hole in sequence and is threadedly connected to the threaded hole.

2. The solar electric bicycle of claim 1, wherein, The first end of the shaft sleeve is further provided with a second limiting groove, the second limiting groove is arranged at intervals with the first limiting groove, and the limiting piece can be clamped in the second limiting groove to keep the swing arm in the storage state. The limiting piece can be switched between the first limiting groove and the second limiting groove, so that the swing arm can be switched between the storage state and the extended state. The seat body has a first side and a second side in the width direction of the solar electric bicycle, the first side of the seat body is provided with two shaft sleeves, and the second side of the seat body is provided with two shaft sleeves.

3. The solar electric bicycle of claim 2, wherein, In the two shaft sleeves on the same side of the seat body, the two shaft sleeves are coaxially arranged in the length direction of the solar electric bicycle. ​ 4. The solar electric bicycle of claim 3, wherein, ​ ​ 5. The solar electric bicycle of claim 4, wherein, ​ 6. The solar electric bicycle of claim 3, wherein, ​ ​ 7. The solar electric bicycle of claim 3, wherein, ​ ​ The swing arms are provided with two, and the mounting body of each swing arm is provided with two rotating shafts, the two rotating shafts on the same mounting body are coaxially arranged, and each swing arm is provided with at least one solar cell; Among them, two mounting bodies are respectively located on the first side and the second side of the seat body, and the rotating shafts of the two mounting bodies are correspondingly inserted into the shaft sleeves of the seat body.

8. The solar electric bicycle of claim 1, wherein, The solar electric bicycle further comprises a connecting seat and a connecting head, the connecting seat is electrically connected to the battery, the connecting head is electrically connected to each solar cell, and the connecting head can be plugged into the connecting seat.

9. The solar electric bicycle of claim 8, wherein, The solar electric bicycle further comprises a joint converter, the connecting head can be plugged into the joint converter, and the joint converter is used for connecting external equipment.

10. The solar electric bicycle of claim 1, wherein, The solar cell is a perovskite solar cell.

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