Electric bicycle wireless charging transmitting terminal mounting mechanism and device

Abstract

The utility model provides an electric bicycle wireless charging transmitting end mounting mechanism and device, which are used for solving the technical problem that a transmitting end and a receiving end of an existing electric bicycle wireless charging device are difficult to directly fit. Comprising a ground mounting seat and an L-shaped swing frame, and the L-shaped swing frame is rotationally mounted on the ground mounting seat through a swing plate rotating shaft; the swing plate rotating shaft is sleeved with a reset torsion spring, the two ends of the reset torsion spring are connected with the ground mounting base and the L-shaped swing frame in a clamped mode respectively, the L-shaped swing frame comprises a transverse support and a vertical support which are connected with each other, and when the reset torsion spring is in a free state, the end face of the vertical support and the vertical direction are arranged to form an acute angle. According to the invention, the opposite fitting difficulty of the receiving end module and the transmitting end module of the bicycle wireless charging system is reduced, the opposite fitting precision of the receiving end module and the transmitting end module is improved, and the wireless charging efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of wireless charging for electric bicycles, in particular to an installation mechanism and device for a wireless charging transmitting end of an electric bicycle. Background Technique

[0002] An electric bicycle refers to a bicycle with a battery as an auxiliary energy source. Electric bicycles are convenient to use and have low costs, becoming a common means of transportation for people's daily travel. However, due to the small body size of electric bicycles, the battery size that can be carried is also small, resulting in a short cruising range. Therefore, electric bicycles need to be charged frequently. Existing electric bicycles mostly use a wired charging mode. The charging and parking points of electric bicycles are mostly outdoors and in open parking sheds, which are extremely vulnerable to the influence of rain. At the same time, the messy placement of charging cables for multiple electric bicycles is also extremely likely to cause potential safety hazards.

[0003] In recent years, with the development of wireless charging technology, wireless charging systems have been widely used in many fields such as aerospace, underwater vehicles, and electric vehicle charging. The primary and secondary sides of the wireless charging system do not require wire connections, improving the safety of charging. However, when existing electric bicycles are wirelessly charged, it is necessary to manually align and fit the receiving end module with the transmitting end module on the ground. The difficulty of alignment and fitting is large, and in many cases, it is difficult to achieve alignment and fitting, resulting in low charging efficiency. At the same time, during the alignment and fitting process, the distance between the receiving end module and the transmitting end module on the ground is relatively close, and it is easy to collide and rub, resulting in equipment damage. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an installation mechanism and device for a wireless charging transmitting end of an electric bicycle, which is used to solve the technical problem that it is difficult to align and fit the transmitting end and the receiving end of the existing wireless charging device for electric bicycles.

[0005] An installation mechanism for a wireless charging transmitting end of an electric bicycle includes a ground mounting base and an L-shaped swing frame. The L-shaped swing frame is rotationally mounted on the ground mounting base through a swing plate rotating shaft.

[0006] A return torsion spring is sleeved on the swing plate rotating shaft. The two ends of the return torsion spring are respectively clamped with the ground mounting base and the L-shaped swing frame. The L-shaped swing frame includes a transverse bracket and a vertical bracket connected to each other. When the return torsion spring is in a free state, the end face of the vertical bracket is arranged at an acute angle to the vertical direction.

[0007] Optionally, rotating shaft fixing plates are installed on both side walls of the vertical bracket.

[0008] Both sides of a U-shaped clamping plate are horizontally installed between the two rotating shaft fixing plates through damping rotating shafts. The transmitting end module of the wireless charging system is placed on the U-shaped clamping plate.

[0009] Optionally, an inclined pressing plate is arranged on the upper end surface of the transverse bracket, and the inclined pressing plate is arranged at an acute angle with the lower end surface of the transverse bracket in the axial direction of the swing plate rotating shaft.

[0010] Optionally, a waist-shaped mounting hole is formed in the end surface of the inclined pressing plate away from the vertical bracket;

[0011] The length direction of the waist-shaped mounting hole is perpendicular to the axial direction of the swing plate rotating shaft, and a limiting stop block for limiting the bicycle wheel is installed in the waist-shaped mounting hole.

[0012] Optionally, an adjusting nut for adjusting the tightness of the reset torsion spring is also threadedly connected to the swing plate rotating shaft.

[0013] An electric bicycle wireless charging device includes a ground device for wireless charging of an electric bicycle according to any one of the claims.

[0014] Optionally, the receiving end module of the wireless charging system is installed on the bicycle frame on one side of the bicycle wheel;

[0015] When the bicycle wheel presses on the inclined pressing plate, the vertical bracket is driven to rotate. When the end surface of the vertical bracket is perpendicular to the vertical direction, the end surfaces of the receiving end module and the transmitting end module are attached to each other.

[0016] Optionally, the input end of the transmitting end module is connected to a power supply, the output end of the receiving end module is connected to a bicycle load, and the receiving end module and the transmitting end module are coupled for power transmission.

[0017] Due to the adoption of the above technical solutions, the present utility model has the following advantages:

[0018] In this application, by arranging the L-shaped swing frame and the reset torsion spring, when the L-shaped swing frame is in a free state, the L-shaped swing frame and the transmitting end module are kept in an inclined state. When the electric bicycle wheel presses on the L-shaped swing frame, the L-shaped swing frame and the transmitting end module rotate to be directly opposite and attached to the receiving end module on the electric bicycle, reducing the difficulty of directly opposite attachment between the receiving end module and the transmitting end module of the bicycle wireless charging system, improving the accuracy of their direct opposite attachment, and further improving the efficiency of wireless charging.

[0019] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following specification. Description of the Drawings

[0020] The drawings of the present utility model are described as follows.

[0021] Figure 1 It is a schematic structural diagram of the installation mechanism of the wireless charging transmitter for an electric bicycle of the present utility model.

[0022] Figure 2 It is an exploded view of the installation mechanism of the wireless charging transmitter for an electric bicycle of the present utility model.

[0023] Figure 3 It is a side view of the installation mechanism of the wireless charging transmitter for an electric bicycle of the present utility model.

[0024] Figure 4 It is a schematic diagram when the electric bicycle of the present utility model is in contact with the installation mechanism of the transmitter at the initial stage.

[0025] Figure 5 It is a schematic structural diagram when the transmitter module and the receiver module of the present utility model are facing and fitting together.

[0026] Figure 6 It is an equivalent circuit diagram of the wireless charging device for an electric bicycle of the present utility model.

[0027] In the figure: 1 - ground mounting seat; 2 - L-shaped swing frame; 201 - horizontal bracket; 202 - vertical bracket; 3 - swing plate rotating shaft; 4 - return torsion spring; 5 - rotating shaft fixing plate; 6 - U-shaped clamping plate; 7 - damping rotating shaft; 8 - transmitter module; 9 - inclined pressing plate; 10 - waist-shaped mounting hole; 11 - limiting stop block; 12 - adjusting nut; 13 - receiver module; 14 - bicycle wheel; 15 - bicycle frame. Specific embodiments

[0028] The present utility model will be further described below with reference to the drawings and embodiments.

[0029] Embodiment 1:

[0030] As Figure 1 shown, an installation mechanism for a wireless charging transmitter of an electric bicycle includes a ground mounting seat 1 and an L-shaped swing frame 2, and the L-shaped swing frame 2 is rotatably mounted on the ground mounting seat 1 through a swing plate rotating shaft 3;

[0031] A return torsion spring 4 is sleeved on the swing plate rotating shaft 3, and both ends of the return torsion spring 4 are respectively clamped with the ground mounting seat 1 and the L-shaped swing frame 2. The L-shaped swing frame 2 includes a horizontally connected horizontal bracket 201 and a vertical bracket 202. When the return torsion spring 4 is in a free state, the end face of the vertical bracket 202 is arranged at an acute angle with the vertical direction.

[0032] As Figure 1 、 Figure 2 andFigure 3 As shown, rotation shaft fixing plates 5 are installed on both side walls of the vertical support 202.

[0033] Both sides of the U-shaped clamping plate 6 are horizontally installed between the two rotation shaft fixing plates 5 through damping rotation shafts 7, and the transmitting end module 8 of the wireless charging system is clamped on the U-shaped clamping plate 6.

[0034] In this embodiment, during use, the ground mounting base 1 is installed on a horizontal ground. When there is no external force, the L-shaped swing frame 2 always maintains an inclined state. During charging, when the bicycle wheel presses on the horizontal support 201, the vertical support 202 rotates around the swing plate rotation shaft 3 to a vertical position, so that the transmitting end module 8 of the wireless charging system is directly opposite and fits with the receiving end module 13 of the wireless charging system, for power transmission. At the initial moment when the bicycle wheel contacts the horizontal support 201, the distance between the transmitting end module 8 and the receiving end module 13 is relatively far, and there will be no collision or friction between them, effectively avoiding damage to the equipment. When the bicycle is pushed after charging is completed, under the action of the reset torsion spring 4, the L-shaped swing frame 2 rotates back to the initial inclined position, and the end faces of the transmitting end module 8 and the receiving end module 13 will not rub against each other during the rotation and separation process, resulting in damage to the surface of the housing.

[0035] In this embodiment, after the electric bicycle stops, regardless of the angle at which the vehicle is parked, the whole formed by the L-shaped swing frame 2, the swing plate rotation shaft 3 and the transmitting end module 8 rotates together with the inclination of the electric bicycle, always ensuring that the transmitting end module 8 and the receiving end module 13 are close together, adapting to electric bicycles parked at different inclination angles, with high accuracy of direct opposite fitting, effectively improving the charging efficiency.

[0036] In this embodiment, in this embodiment, a limiting step is provided at one end of the swing plate rotation shaft 3, and a limiting nut is threadedly connected to the other end. The axial movement of the swing plate rotation shaft 3 is restricted by the limiting step and the limiting nut. By providing the damping rotation shaft 7, while ensuring that the transmitting end module 8 can freely rotate on the rotation shaft fixing plate 5, there is a certain damping force to prevent the transmitting end module from shaking violently.

[0037] As Figure 1 、 Figure 2 and Figure 3 shown, an inclined pressing plate 9 is provided on the upper end surface of the horizontal support 201, and the inclined pressing plate 9 is arranged at an acute angle with the lower end surface of the horizontal support 201 in the axial direction of the swing plate rotation shaft 3.

[0038] As Figure 1 、 Figure 2 and Figure 3 shown, a kidney-shaped mounting hole 10 is provided on the end surface of the inclined pressing plate 9 away from the vertical support 202.

[0039] The length direction of the kidney-shaped mounting hole 10 is perpendicular to the axis direction of the swing plate rotating shaft 3, and a limit stop 11 for limiting the bicycle wheel 14 is installed in the kidney-shaped mounting hole 10.

[0040] In this embodiment, the inclined pressing plate 9 is provided to facilitate pushing the electric bicycle onto the L-shaped swing frame 2, and at the same time enable the bicycle wheel to better fit with the inclined pressing plate 9. The limit stop 11 is provided to limit the lateral position of the bicycle wheel to prevent it from falling off during the charging process. The kidney-shaped mounting hole 10 is provided to facilitate adjusting the position of the limit stop 11 to meet the limitation of bicycle wheels with different widths. In this embodiment, a threaded rod is provided at the bottom end of the limit stop 11, and when installed, the threaded rod passes through the kidney-shaped mounting hole 10 and is threadedly connected with a locking nut.

[0041] As Figure 1 、 Figure 2 and Figure 3 shown, an adjusting nut 12 for adjusting the tightness of the return torsion spring 4 is also threadedly connected to the swing plate rotating shaft 3.

[0042] In this embodiment, as Figure 1 shown, the return torsion spring 4 is sleeved on the swing plate rotating shaft 3 between the two side plates of the L-shaped swing frame 2. One end of the return torsion spring 4 abuts against the horizontal end face of the ground mounting seat 1, and the other end of the return torsion spring 4 abuts against the upper end face of the transverse bracket 201. By adjusting the nut 12, the length of the return torsion spring 4 along the axis direction of the swing plate rotating shaft 3 is adjusted, thereby adjusting its tightness. The technical problem that the return degree of the return torsion spring 4 becomes worse after multiple uses is solved.

[0043] Embodiment 2:

[0044] As Figure 4 and Figure 5 shown, an electric bicycle wireless charging device includes the ground device for electric bicycle wireless charging described in Embodiment 1.

[0045] As Figure 4 and Figure 5 shown, the receiving end module 13 of the wireless charging system is installed on the bicycle frame 15 on one side of the bicycle wheel 14;

[0046] When the bicycle wheel 14 presses on the inclined pressing plate 9, it drives the vertical bracket 202 to rotate. When the end face of the vertical bracket 202 is perpendicular to the vertical direction, the end face of the receiving end module 13 is in contact with the end face of the transmitting end module 8.

[0047] In this embodiment, the bicycle wheel 14 can be the front wheel or the rear wheel of the bicycle. During charging, the bicycle is pushed to press the bicycle wheel 14 onto the inclined pressing plate 9. When the end face of the receiving end module 13 is in contact with the end face of the transmitting end module 8, the pushing of the bicycle is stopped. At this time, the transmitting coil of the transmitting end module 8 and the receiving coil of the receiving end module 13 are arranged opposite to each other.

[0048] As Figure 4 and Figure 5 shown, the input end of the transmitting end module 8 is connected to a power source, the output end of the receiving end module 13 is connected to a bicycle load, and the receiving end module 13 and the transmitting end module 8 are coupled to perform power transmission.

[0049] In this embodiment, the transmitting end module 8 includes a transmitting end mounting housing, and a high-frequency inverter, a primary compensation circuit, and a transmitting coil that are sequentially connected and installed in the transmitting end mounting housing. The receiving end module 13 includes a receiving end mounting housing, and a receiving coil, a secondary compensation circuit, and a rectifier that are sequentially connected in the receiving end mounting housing. As an embodiment of the present application, as Figure 6 shown, the input end of the high-frequency inverter is connected to a DC power supply V d connection. The high-frequency inverter includes a total of four switching tubes Q1-Q4. The primary compensation circuit and the secondary compensation circuit adopt an SS topology structure. The primary compensation circuit includes a primary compensation capacitor C1, and the secondary compensation circuit includes a primary compensation capacitor C2. The transmitting coil is L1. The rectifier includes a total of 4 diodes D1-D4 and a filter capacitor C d , and the output end of the rectifier is connected to the load R L (storage battery) of the electric bicycle.

[0050] In this embodiment, during charging, when the bicycle is parked in place and the end faces of the transmitting end module 8 and the receiving end module 13 are in contact, the transmitting coil and the receiving coil are coupled to perform power transmission.

[0051] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the specific implementation manners of the present invention can still be modified or equivalently replaced, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A wireless charging transmitter installation mechanism for an electric bicycle, characterized in that, It includes a ground mounting base (1) and an L-shaped swing frame (2), and the L-shaped swing frame (2) is rotatably mounted on the ground mounting base (1) through a swing plate rotating shaft (3); A return torsion spring (4) is sleeved on the swing plate rotating shaft (3), and both ends of the return torsion spring (4) are clamped with the ground mounting base (1) and the L-shaped swing frame (2) respectively. The L-shaped swing frame (2) includes a transverse bracket (201) and a vertical bracket (202) which are connected to each other. When the return torsion spring (4) is in a free state, the end face of the vertical bracket (202) is arranged at an acute angle with the vertical direction.

2. The installation mechanism of the wireless charging transmitter for an electric bicycle according to claim 1, characterized in that, Shaft fixing plates (5) are installed on both side walls of the vertical bracket (202); Both sides of a U-shaped clamping plate (6) are horizontally installed between the two shaft fixing plates (5) through damping rotating shafts (7), and the transmitting end module (8) of the wireless charging system is clamped on the U-shaped clamping plate (6).

3. The installation mechanism of the wireless charging transmitter for an electric bicycle according to claim 1, characterized in that, An inclined pressing plate (9) is arranged on the upper end face of the transverse bracket (201), and the inclined pressing plate (9) is arranged at an acute angle with the lower end face of the transverse bracket (201) in the axial direction of the swing plate rotating shaft (3).

4. The installation mechanism of the wireless charging transmitter for an electric bicycle according to claim 3, characterized in that, A kidney-shaped mounting hole (10) is formed in the end face of the inclined pressing plate (9) away from the vertical bracket (202); The length direction of the kidney-shaped mounting hole (10) is perpendicular to the axial direction of the swing plate rotating shaft (3), and a limiting stop block (11) for limiting a bicycle wheel (14) is installed in the kidney-shaped mounting hole (10).

5. The installation mechanism of a wireless charging transmitter for an electric bicycle according to claim 1, characterized in that, An adjusting nut (12) for adjusting the tightness of the return torsion spring (4) is also threadedly connected to the swing plate rotating shaft (3).

6. A wireless charging device for an electric bicycle, characterized in that, It includes the ground device for wireless charging of an electric bicycle according to any one of claims 1-5.

7. An electric bicycle wireless charging device according to claim 6, characterized in that, The receiving end module (13) of the wireless charging system is installed on a bicycle frame (15) on one side of the bicycle wheel (14); When the bicycle wheel (14) presses on the inclined pressing plate (9), it drives the vertical bracket (202) to rotate. When the end face of the vertical bracket (202) is perpendicular to the vertical direction, the end faces of the receiving end module (13) and the transmitting end module (8) are attached to each other.

8. The wireless charging device for an electric bicycle according to claim 7, characterized in that, The input end of the transmitting end module (8) is connected to a power supply, the output end of the receiving end module (13) is connected to a bicycle load, and the receiving end module (13) and the transmitting end module (8) are coupled for power transmission.

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