A wireless charging device for electric bicycles with automatic position adjustment

Abstract

The present application provides a wireless charging device for an electric bicycle with automatic position adjustment, which is used to solve the problem that it is difficult to directly face the transmitting end and the receiving end of the existing wireless charging device for an electric bicycle, resulting in low charging power. It includes a transmitting end and a receiving end. The transmitting end includes a base, and an L-shaped rotating frame rotatably mounted on the base. A reset torsion spring is sleeved on the bracket rotating shaft of the L-shaped rotating frame. The L-shaped rotating frame includes a horizontal bracket and a vertical bracket arranged perpendicular to each other. A wireless charging transmitting module is slidably arranged on the vertical bracket. A wheel limiting block is slidably arranged below the horizontal bracket on one side of the base. A placement groove for avoiding the horizontal bracket and an arc-shaped groove for placing the wheel of the electric bicycle are formed on the wheel limiting block. By setting a slidable wheel limiting block and a wireless charging transmitting module, and forming an arc-shaped groove on the wheel limiting block, the alignment in three directions of the transmitting end and the receiving end is achieved, improving the charging efficiency of the wireless charging device.

Description

Technical Field

[0001] The present invention relates to the field of wireless power transmission, and particularly to a wireless charging device for an electric bicycle with automatic position adjustment. Background Art

[0002] An electric bicycle refers to a bicycle with a battery as an auxiliary energy source. Due to its convenience and low cost, electric bicycles have become a common means of transportation in people's daily work and life. The size of an electric bicycle itself is relatively small, so the battery capacity it carries is small. In daily use, it often needs to be charged once a day or multiple times a day to meet the daily travel needs. The charging of existing electric bicycles is mostly carried out outdoors or in a shed. The traditional wired charging method is easily affected by outdoor rain, and at the same time, the messy charging cables are extremely likely to cause safety hazards such as fires.

[0003] Therefore, in response to the above problems, wireless charging technology has been widely applied to the wireless charging system of bicycles. Most of the existing wireless charging devices for electric bicycles place the transmitting end on the ground and the receiving end on the frame on one side of the electric bicycle wheel. During charging, the receiving end is brought close to the transmitting end to carry out wireless power transmission. However, due to the differences in the frame width and height of electric bicycles produced by each manufacturer, there are certain differences in the position of the receiving end. Therefore, it is difficult to achieve alignment in three directions when it is close to the transmitting end, resulting in the technical problem of low transmission power. Summary of the Invention

[0004] The purpose of the present invention is to provide a wireless charging device for an electric bicycle with automatic position adjustment, which is used to solve the technical problem that the transmitting end and the receiving end of the existing wireless charging device for an electric bicycle are difficult to be directly opposite to each other, resulting in low charging power.

[0005] A wireless charging device for an electric bicycle with automatic position adjustment includes a transmitting end and a receiving end. The transmitting end includes a base and an L-shaped rotating frame rotatably installed on the base. A return torsion spring is sleeved on the bracket rotating shaft of the L-shaped rotating frame.

[0006] The L-shaped rotating frame includes a horizontal bracket and a vertical bracket arranged perpendicular to each other. A wireless charging transmitting module is slidably arranged on the vertical bracket. A wheel limiting block is slidably arranged below the horizontal bracket on one side of the base. A placement groove for avoiding the horizontal bracket is opened on the wheel limiting block, and an arc-shaped groove for placing the electric bicycle wheel is opened on the wheel limiting block.

[0007] Optionally, both the horizontal bracket and the vertical bracket are channel steel brackets with a cross-section, and the bracket rotating shaft is installed at the connection end of the horizontal bracket and the vertical bracket.

[0008] Both ends of the reset torsion spring are respectively connected to the base and the L-shaped rotating frame. When the reset torsion spring is in a free state, the horizontal bracket is arranged at an acute angle to the horizontal plane.

[0009] Optionally, the wireless charging transmitting module includes a slide rail installed on the end face of the vertical bracket, and a guide rail slider slidably arranged on the slide rail;

[0010] A threaded rod is installed in the groove of the vertical bracket. The axial direction of the threaded rod is the same as the length direction of the slide rail. A threaded slider is threadedly connected to the threaded rod. A long strip avoidance groove is formed on the end face of the vertical bracket. The upper end of the threaded slider passes through the long strip avoidance groove and is connected to the guide rail slider. A driving motor is also installed in the groove of the vertical bracket. The power output shaft of the driving motor is connected to one end of the threaded rod.

[0011] Optionally, a first clamping and placing frame is installed on the guide rail slider;

[0012] A first shell is clamped and placed on the first clamping and placing frame. A wireless charging transmitting module is installed in the first shell. A plurality of freely rotatable balls are installed on the outer side end face of the first shell.

[0013] Optionally, the length direction of the arc-shaped groove is perpendicular to the length direction of the placing groove;

[0014] The wheel limiting block is slidably arranged in a slider box with an open upper end. A guide rod is installed in the slider box. The axial direction of the guide rod is the same as the length direction of the placing groove. The wheel limiting block is slidably sleeved on the guide rod. Return springs are sleeved on the guide rods on both sides of the wheel limiting block. Both ends of the return spring are respectively connected to the wheel limiting block and the side wall of the slider box.

[0015] Optionally, a plurality of roller modules are also embedded and installed on the end face of the horizontal bracket. The axial directions of the plurality of roller modules are all the same as the length direction of the arc-shaped groove;

[0016] Limiting plates are also arranged on the wheel limiting blocks on both sides of the arc-shaped groove. Guide chamfers for facilitating the pushing-in of the electric bicycle are arranged on the wheel limiting blocks at both ends of the arc-shaped groove.

[0017] Optionally, the two ends of the slider box are respectively connected to a first box body and a second box body;

[0018] Both the first box body and the second box body are open at the ends close to the slider box. The base is installed in the first box body. An avoidance notch for avoiding the L-shaped rotating frame is formed on the first box body.

[0019] Optionally, first and second baffles are respectively installed at both ends of the wheel limiting block;

[0020] A first notch for the first baffle to pass through is provided on the side wall of the slider box close to the first box body. The second baffle is a baffle with a concave through groove in the middle. A T-shaped notch for the second baffle to pass through is opened on the side wall of the slider box close to the second box body.

[0021] Optionally, long strip sliding holes are opened on both side walls of the concave through groove of the second baffle;

[0022] Both ends of the push plate are installed with push plate rotating shafts. The two ends of the push plate rotating shaft at one end are respectively slidably arranged in the long strip sliding holes, and the two ends of the push plate rotating shaft at the other end are respectively installed on two ear plates below the transverse bracket groove.

[0023] Optionally, the receiving end includes a second housing and a wireless charging receiving module installed in the second housing. The second housing is installed on the frame on one side of the electric bicycle wheel;

[0024] The output end of the wireless charging receiving module is connected to the load of the electric bicycle. During wireless charging, the transmitting end and the receiving end are coupled for power transmission.

[0025] Due to the adoption of the above technical solutions, the present invention has the following advantages:

[0026] 1. By setting a sliding wheel limiting block and a wireless charging transmitting module, and opening an arc-shaped groove on the wheel limiting block to achieve alignment in three directions between the transmitting end and the receiving end, the charging efficiency of the wireless charging device is improved.

[0027] 2. The wireless charging device for the electric bicycle of the present application can be applied to receiving ends with multiple installation widths and heights, and has a wide application range.

[0028] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent description, 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 invention. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings of the present invention are described as follows.

[0030] Figure 1 It is a schematic structural diagram of a part of the transmitting end of the wireless charging device for the electric bicycle of the present invention.

[0031] Figure 2 It is a schematic structural diagram of the transmitting end of the wireless charging device for the electric bicycle of the present invention.

[0032] Figure 3 This is a schematic structural diagram of the L-shaped rotating frame and the wireless charging transmitting module of the present invention.

[0033] Figure 4 This is a cross-sectional view of the transmitting end of the wireless charging device for an electric bicycle of the present invention.

[0034] Figure 5 This is a schematic diagram of the positions of the wheel limiting block, the push plate and the second baffle of the present invention.

[0035] Figure 6 This is a schematic structural diagram of the slider box of the present invention.

[0036] Figure 7 This is a schematic structural diagram when the wheel of the present invention starts to contact the transmitting end.

[0037] Figure 8 This is a schematic structural diagram when the wheel of the present invention completely enters the arc-shaped groove.

[0038] Figure 9 This is a schematic structural diagram when the transmitting end and the receiving end of the present invention are facing each other.

[0039] In the figure: 1 - base; 2 - L-shaped rotating frame; 3 - bracket rotating shaft; 4 - return torsion spring; 201 - horizontal bracket; 202 - vertical bracket; 203 - long strip avoidance groove; 5 - wheel limiting block; 501 - placement groove; 502 - arc-shaped groove; 503 - limiting plate; 504 - guiding bevel; 6 - slide rail; 7 - guide rail slider; 8 - threaded rod; 9 - threaded slider; 10 - drive motor; 11 - first clamping rack; 12 - first housing; 13 - ball; 14 - slider box; 15 - guide rod; 16 - return spring; 17 - first box body; 18 - second box body; 19 - first baffle; 20 - second baffle; 21 - first notch; 22 - T-shaped notch; 23 - long strip sliding hole; 24 - push plate; 25 - ear; 26 - vehicle frame; 27 - roller module; 28 - second housing. Detailed implementation manners

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] Embodiment:

[0042] As Figure 1 and Figure 2 shown, an automatic position-adjusting wireless charging device for an electric bicycle includes a transmitting end and a receiving end, and is characterized in that the transmitting end includes a base 1 and an L-shaped rotating frame 2 rotatably mounted on the base 1, and a return torsion spring 4 is sleeved on the bracket rotating shaft 3 of the L-shaped rotating frame 2;

[0043] The L-shaped rotating frame 2 includes a horizontal bracket 201 and a vertical bracket 202 which are perpendicularly arranged. A wireless charging transmitting module is slidably arranged on the vertical bracket 202. A wheel limiting block 5 is slidably arranged below the horizontal bracket 201 on one side of the base 1. A placement groove 501 for avoiding the horizontal bracket 201 is formed on the wheel limiting block 5, and an arc-shaped groove 502 for placing the wheel of an electric bicycle is formed on the wheel limiting block 5.

[0044] As Figure 1 , Figure 2 and Figure 3 shown, both the horizontal bracket 201 and the vertical bracket 202 are channel steel brackets in cross-section, and the bracket rotating shaft 3 is installed at the connecting end of the horizontal bracket 201 and the vertical bracket 202;

[0045] Both ends of the reset torsion spring 4 are respectively connected to the base 1 and the L-shaped rotating frame 2. When the reset torsion spring 4 is in a free state, the horizontal bracket 201 is arranged at an acute angle with the horizontal plane.

[0046] In this embodiment, the transmitting end is embedded and installed underground, which is convenient for the electric bicycle to be pushed in. When the electric bicycle is pushed in, the wheel contacts the horizontal bracket 201, which drives the L-shaped rotating frame 2 to rotate around the bracket rotating shaft 3. When the wheel completely enters the arc-shaped groove 502, the vertical bracket 202 rotates to the vertical position.

[0047] As Figure 1 , Figure 2 and Figure 3 shown, the receiving end includes a second housing 28 and a wireless charging receiving module installed in the second housing 28. The second housing 28 is installed on the vehicle frame 26 on one side of the wheel of the electric bicycle;

[0048] The output end of the wireless charging receiving module is connected to the load of the electric bicycle. During wireless charging, the transmitting end and the receiving end are coupled for power transmission.

[0049] In this embodiment, the wireless charging receiving module includes a power receiving coil, a secondary compensation circuit and a rectifying and filtering circuit which are connected in sequence. The output end of the rectifying and filtering circuit is connected to the battery load of the electric bicycle. The secondary compensation circuit selects topological structures such as LC and LCC, and the rectifying and filtering circuit selects a full-bridge rectifier filter.

[0050] In this embodiment, the placement groove 501 is opened in the middle of the arc-shaped groove 502. After the wheel enters, under the action of gravity, it is always located at the bottom of the arc-shaped groove 502, that is, the center line in the length direction of the transverse bracket 201 and the axis of the electric bicycle wheel shaft are located in the same vertical plane. During installation, the vertical center line of the first housing 12 and the center line in the length direction of the transverse bracket 201 are located in the same vertical plane, and at the same time, the vertical center line of the second housing 28 and the axis of the electric bicycle wheel shaft are located in the same vertical plane. When the wheel completely enters the arc-shaped groove 502, the vertical center lines of the second housing 28 and the first housing 12 can be aligned, achieving alignment in one direction.

[0051] As Figure 1 , Figure 2 and Figure 3 shown, the wireless charging transmitting module includes a slide rail 6 installed on the end face of the vertical bracket 202, and a guide rail slider 7 slidably arranged on the slide rail 6;

[0052] A threaded rod 8 is installed in the groove of the vertical bracket 202. The axial direction of the threaded rod 8 is the same as the length direction of the slide rail 6. A threaded slider 9 is threadedly connected to the threaded rod 8. A long strip avoidance groove 203 is opened on the end face of the vertical bracket 202. The upper end of the threaded slider 9 passes through the long strip avoidance groove 203 and is connected to the guide rail slider 7. A driving motor 10 is also installed in the groove of the vertical bracket 202. The power output shaft of the driving motor 10 is connected to one end of the threaded rod 8.

[0053] In this embodiment, as Figure 8 shown, when the end faces of the first housing 12 and the second housing 28 are in contact, the driving motor 10 drives the threaded slider 9, the guide rail slider 7, the first clamping and placing frame 11 and the first housing 12 to move along the slide rail 6, so that the first housing 12 and the second housing 28 are directly opposite in the vertical direction.

[0054] As an embodiment of the present application, the device further includes an image recognition module (not shown in the figure) installed on the L-shaped rotating frame 2. By collecting the image at the moment as Figure 8 shown, and through identifying and analyzing the image to determine the offset distance between the first housing 12 and the second housing 28 in the vertical direction, the driving motor 10 is controlled to move the first housing 12 to a position completely fitting with the second housing 28.

[0055] As another embodiment of the present application, a signal receiving coil and a signal demodulation circuit are provided in the first housing 12, and a signal transmitting coil, a signal modulation circuit and a collection circuit are provided in the second housing 28. When the receiving end and the transmitting end move to as Figure 8At the shown moment, the power information of the receiving end is collected by the acquisition circuit, modulated by the signal modulation circuit and then transmitted to the signal transmitting coil. The signal transmitting coil is coupled with the signal receiving coil, and the signal is demodulated by the signal demodulation circuit to obtain the power information of the power transmission at this time. The stroke of the driving motor 10 is controlled by the power information, and through multiple adjustments, the first housing 12 is moved to a position where it is completely attached to the second housing 28.

[0056] As Figure 1 、 Figure 2 and Figure 3 shown, a first clamping and placing frame 11 is installed on the guide rail slider 7;

[0057] The first clamping and placing frame 11 is clamped and installed with a first housing 12. A wireless charging transmitting module is installed in the first housing 12, and a number of freely rotatable balls 13 are installed on the outer end face of the first housing 12.

[0058] In this embodiment, the wireless charging transmitting module includes a high-frequency inverter circuit, a primary compensation circuit and a power transmitting coil installed in the first housing 12. The input end of the high-frequency inverter circuit is connected to a DC power supply. The high-frequency inverter circuit can be a full-bridge inverter, and the primary compensation circuit can be topologies such as LC and LCC. In this embodiment, a number of balls 13 are embedded and installed in the first housing 12. When the first housing 12 contacts the second housing 28, the contact changes from a sliding contact to a rolling contact, avoiding damage to the outer end faces of the first housing 12 and the second housing 28. As another embodiment of the present application, a number of freely rotatable balls are also installed on the second housing 28.

[0059] As Figure 1 、 Figure 2 and Figure 3 shown, the length direction of the arc-shaped groove 502 is perpendicular to the length direction of the placement groove 501;

[0060] The wheel limiting block 5 is slidably arranged in a slider box 14 with an open upper end. A guide rod 15 is installed in the slider box 7. The axis direction of the guide rod 15 is the same as the length direction of the placement groove 501. The wheel limiting block 5 is slidably sleeved on the guide rod 15. Return springs 16 are sleeved on the guide rods 15 on both sides of the wheel limiting block 5, and the two ends of the return spring 16 are respectively connected to the wheel limiting block 5 and the side wall of the slider box 14.

[0061] In this embodiment, as Figure 7As shown, when the electric bicycle is pushed in, the wheels of the electric bicycle come into contact with the transverse bracket 201 and press down on the transverse bracket 201, causing the L-shaped rotating frame 2 to rotate around the bracket rotating shaft 3. When the first housing 12 comes into contact with the second housing 28 (at this time, the first housing 12 has not rotated to the vertical position), the first housing 12 pushes the second housing 28 and the charging end of the electric bicycle to move towards the end away from the base 1 until the first housing 12 moves to the vertical position, as Figure 8 shown, the ball 13 on the first housing 12 abuts against the end face of the second housing 28.

[0062] In this embodiment, at the initial moment, the return spring 16 is in a free state. At this time, the distance between the wheel limiting block 5 and the base is the smallest, which meets the use requirements of the electric bicycle with the smallest lateral distance among the electric bicycles adapted to this device. In this embodiment, the elastic force of the return spring 16 is small, and it is only used for the reset of the wheel limiting block 5 when there is no external force. When the first housing 12 abuts against the end face of the second housing 28, after the support frame of the electric bicycle supports it, the thrust of the return spring 16 is much smaller than the lateral force required to push the electric bicycle.

[0063] As Figure 1 、 Figure 2 and Figure 3 shown, a plurality of roller modules 27 are also embedded and installed on the end face of the transverse bracket 201, and the axial directions of the plurality of roller modules 27 are all the same as the length direction of the arc-shaped groove 502;

[0064] On the wheel limiting blocks 5 on both sides of the arc-shaped groove 502, limit plates 503 are further provided, and on the wheel limiting blocks 5 at both ends of the arc-shaped groove 502, guiding chamfer angles 504 for facilitating the pushing-in of the electric bicycle are provided.

[0065] In this embodiment, by providing the guiding chamfer angle 504, it is convenient for the wheels of the electric bicycle to enter the arc-shaped groove 502. By providing the limit plates 503, the width of the wheels of the electric bicycle is limited. For electric bicycles exceeding this width, the wireless charging requirement of the transmitting end cannot be achieved. In this embodiment, a plurality of roller modules 27 are provided. When the first housing 12 abuts against the second housing 28 and pushes the wheel limiting block 5 and the charging end of the electric bicycle to move along the guide rod 15, the wheels of the electric bicycle are in rolling contact with the roller modules 27, reducing the friction force.

[0066] As Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 shown, both ends of the slider box 14 are respectively connected to a first box body 17 and a second box body 18;

[0067] The first box body 17 and the second box body 18 are both opened at one end close to the slider box 14 , and the base 1 is installed in the first box body 17 . The first box body 17 is provided with an escape notch for escaping the L-shaped rotating frame 2 .

[0068] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the first baffle 19 and the second baffle 20 are respectively installed at both ends of the wheel limit block 5;

[0069] The side wall of the slider box 14 close to the first box body 17 is provided with a first notch 21 for the first baffle 19 to pass through, the second baffle 20 is a baffle with a concave through groove in the middle, and the side wall of the slider box 14 close to the second box body 18 is provided with a T-shaped notch 22 for the second baffle 20 to pass through.

[0070] In this embodiment, the slider box 14 is embedded and installed underground. Therefore, in order to prevent the charging personnel from stepping on the base 1 and the hinged end thereof with the L-shaped rotating frame 2 during actual use, the base 1 and the hinged end thereof with the L-shaped rotating frame 2 are arranged in the first box body 17 for protection. In order to prevent the guide rod 15 and the return spring 16 from being stepped on by the charging personnel, the first baffle 19 and the second baffle 20 are respectively arranged above the guide rod 15 and the return spring 16 to align for protection. When the wheel limit block 5 slides left and right, the first baffle 19 and the second baffle 20 slide along the first notch 21 and the T-shaped notch 22 respectively. In this embodiment, the wheel limit block 5 is within its sliding stroke, and the front ends of the first baffle 19 and the second baffle 20 will not be separated from the first notch 21 and the T-shaped notch 22.

[0071] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the two side walls of the concave through groove of the second baffle plate 20 are provided with long sliding holes 23;

[0072] Both ends of the push plate 24 are installed with push plate shafts. Both ends of the push plate shaft at one end are slidably set in the long sliding hole 23, and both ends of the push plate shaft at the other end are respectively installed on the two ears 25 below the groove of the horizontal bracket 201.

[0073] In this embodiment, the slider box 14 is embedded and installed underground. Therefore, objects (such as stones and mud blocks) on the outside and on the wheels are likely to fall into the placement groove 501. When there are stones and mud blocks in the placement groove 501, it is difficult for the transverse bracket 201 to be pressed down in place when the electric bicycle is pushed in, resulting in the first housing 12 being unable to rotate to the vertical position to fit the end face of the second housing 28. Therefore, in this application, a push plate 24 is provided at the lower end of the transverse bracket 201. When the L-shaped rotating frame 2 is in the initial state, the push plate 24 is arranged at an inclination to the horizontal plane. When foreign objects such as stones and mud blocks fall in, they will first fall on the push plate 24 and slide into the concave through groove of the second baffle 20 through the inclined push plate 24. When the L-shaped rotating frame 2 rotates, it drives the front end of the push plate 24 to move along the long sliding hole 23, and the front end of the push plate 24 moves towards the end close to the second box body 18. During the movement, the foreign objects are pushed towards the end close to the second box body 18. When there are more foreign objects, they can also enter the second box body 18 through the T-shaped notch 22. It only needs to regularly clean the concave through groove of the second baffle 20 and the second box body 18, which ensures the stability of the device operation.

[0074] 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 without departing from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A wireless charging device for an electric bicycle with automatic position adjustment, comprising a transmitting end and a receiving end, characterized in that, The transmitting end includes a base (1) and an L-shaped rotating frame (2) rotatably mounted on the base (1). A reset torsion spring (4) is sleeved on the bracket rotating shaft (3) of the L-shaped rotating frame (2). The L-shaped rotating frame (2) includes a horizontal bracket (201) and a vertical bracket (202) arranged perpendicular to each other. A wireless charging transmitting module is slidably arranged on the vertical bracket (202). A wheel limiting block (5) is slidably arranged below the horizontal bracket (201) on one side of the base (1). A placement groove (501) for avoiding the horizontal bracket (201) is formed in the wheel limiting block (5), and an arc-shaped groove (502) for placing the wheel of an electric bicycle is formed in the wheel limiting block (5). The wireless charging transmitting module includes a slide rail (6) mounted on the end face of the vertical bracket (202) and a guide rail slider (7) slidably arranged on the slide rail (6). A threaded rod (8) is installed in the groove of the vertical bracket (202). The axial direction of the threaded rod (8) is the same as the length direction of the slide rail (6). A threaded slider (9) is threadedly connected to the threaded rod (8). A long strip avoidance groove (203) is formed in the end face of the vertical bracket (202). The upper end of the threaded slider (9) passes through the long strip avoidance groove (203) and is connected to the guide rail slider (7). A driving motor (10) is also installed in the groove of the vertical bracket (202), and the power output shaft of the driving motor (10) is connected to one end of the threaded rod (8). The length direction of the arc-shaped groove (502) is perpendicular to the length direction of the placement groove (501). The wheel limiting block (5) is slidably arranged in a slider box (14) with an open upper end. A guide rod (15) is installed in the slider box (14). The axial direction of the guide rod (15) is the same as the length direction of the placement groove (501). The wheel limiting block (5) is slidably sleeved on the guide rod (15). Reset springs (16) are sleeved on the guide rods (15) on both sides of the wheel limiting block (5), and the two ends of the reset springs (16) are respectively connected to the wheel limiting block (5) and the side wall of the slider box (14).

2. The wireless charging device for an electric bicycle with automatic position adjustment according to claim 1, wherein Both the horizontal bracket (201) and the vertical bracket (202) are channel steel brackets in cross section, and the bracket rotating shaft (3) is installed at the connection end of the horizontal bracket (201) and the vertical bracket (202). The two ends of the reset torsion spring (4) are respectively connected to the base (1) and the L-shaped rotating frame (2). When the reset torsion spring (4) is in a free state, the horizontal bracket (201) is arranged at an acute angle to the horizontal plane.

3. The wireless charging device for an electric bicycle with automatically adjustable position according to claim 2, characterized in that, A first clamping and placing frame (11) is installed on the guide rail slider (7). A first shell (12) is clamped and placed on the first clamping and placing frame (11). A wireless charging transmitting module is installed in the first shell (12), and a number of freely rotatable balls (13) are installed on the outer end face of the first shell (12).

4. An automatic position-adjusting wireless charging device for an electric bicycle according to claim 3, characterized in that, On the end face of the transverse bracket (201), a number of roller modules (27) are also embedded and installed, and the axial directions of the number of roller modules (27) are all the same as the length direction of the arc-shaped groove (502); On the wheel limit blocks (5) on both sides of the arc-shaped groove (502), limit plates (503) are also provided, and on the wheel limit blocks (5) at both ends of the arc-shaped groove (502), guiding chamfer angles (504) for facilitating the pushing of the electric bicycle are provided.

5. The wireless charging device for an electric bicycle with automatically adjustable position according to claim 4, characterized in that, Both ends of the slider box (14) are respectively connected to a first box body (17) and a second box body (18); One ends of the first box body (17) and the second box body (18) close to the slider box (14) are both open, the base (1) is installed in the first box body (17), and an avoidance notch for avoiding the L-shaped rotating frame (2) is provided on the first box body (17).

6. The wireless charging device for an electric bicycle with automatic position adjustment according to claim 5, characterized in that, Both ends of the wheel limit block (5) are respectively installed with a first baffle (19) and a second baffle (20); On the side wall of the slider box (14) close to the first box body (17), a first notch (21) for the first baffle (19) to pass through is provided, the second baffle (20) is a baffle with a concave through groove in the middle, and a T-shaped notch (22) for the second baffle (20) to pass through is provided on the side wall of the slider box (14) close to the second box body (18).

7. An automatic position-adjusting wireless charging device for an electric bicycle according to claim 6, characterized in that, Long strip sliding holes (23) are provided on both side walls of the concave through groove of the second baffle (20); Both ends of the push plate (24) are installed with push plate rotating shafts. The two ends of the push plate rotating shaft at one end are respectively slidably arranged in the long strip sliding holes (23), and the two ends of the push plate rotating shaft at the other end are respectively installed on two support ears (25) below the groove of the transverse bracket (201).

8. The wireless charging device for an electric bicycle with automatic position adjustment according to claim 1, characterized in that, The receiving end includes a second housing (28), and a wireless charging receiving module installed in the second housing (28), and the second housing (28) is installed on the frame (26) on one side of the electric bicycle wheel; The output end of the wireless charging receiving module is connected to the load of the electric bicycle. During wireless charging, the transmitting end and the receiving end are coupled for power transmission.

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