Electric bicycle wireless charging device capable of automatically adjusting position

Abstract

The invention provides an electric bicycle wireless charging device capable of automatically adjusting the position. The problem that a transmitting end and a receiving end of an existing wireless charging device for the electric bicycle are difficult to directly face to cause low charging power is solved. Comprising a transmitting end and a receiving end, the transmitting end comprises a base and an L-shaped rotating frame rotationally installed on the base, and a support rotating shaft of the L-shaped rotating frame is sleeved with a reset torsional spring; the L-shaped rotating frame comprises a transverse support and a vertical support which are perpendicular to each other, a wireless charging transmitting module is arranged on the vertical support in a sliding mode, a wheel limiting block is arranged below the transverse support on one side of the base in a sliding mode, and a containing groove used for avoiding the transverse support and an arc-shaped groove used for containing wheels of the electric bicycle are formed in the wheel limiting block. According to the wireless charging device, the sliding wheel limiting block and the wireless charging transmitting module are arranged, and the arc-shaped groove is formed in the wheel limiting block, so that alignment of the transmitting end and the receiving end in three directions is realized, and the charging efficiency of the wireless charging device is improved.

Description

Technical Field

[0001] The invention relates to the field of wireless power transmission, in particular to an electric bicycle wireless charging device capable of automatically adjusting position. Background Art

[0002] Electric bicycles are bicycles that use batteries as auxiliary energy. They are a common means of transportation for people in their daily work and life because of their convenience and low cost. Electric bicycles are small in size, so the battery capacity is small. In daily use, they need to be charged once a day or more to meet daily travel needs. Existing electric bicycles are mostly charged outdoors or in a carport. The traditional wired charging method is easily affected by outdoor rain, and the messy charging cables are also very likely to cause safety hazards such as fire.

[0003] Therefore, in response to the above problems, wireless charging technology is widely used in wireless charging systems for bicycles. Existing wireless charging devices for electric bicycles mostly place the transmitter on the ground and the receiver on the frame on one side of the electric bicycle wheel. When charging, the receiver and the transmitter are brought close to each other for wireless power transmission. However, due to the different widths and heights of the frames of electric bicycles produced by each manufacturer, the position of the receiver varies to a certain extent. Therefore, it is difficult to achieve alignment in three directions when it is close to the transmitter, resulting in a technical problem of low transmission power. Summary of the invention

[0004] The purpose of the present invention is to provide an electric bicycle wireless charging device with automatic position adjustment, so as to solve the technical problem that the transmitting end and the receiving end of the existing electric bicycle wireless charging device are difficult to be aligned, resulting in low charging power.

[0005] An electric bicycle wireless charging device with automatic position adjustment comprises a transmitting end and a receiving end, wherein the transmitting end comprises a base and an L-shaped rotating frame rotatably mounted on the base, and a reset torsion spring is sleeved on a bracket rotating shaft of the L-shaped rotating frame;

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

[0007] Optionally, the transverse bracket and the vertical bracket are both brackets with a cross section of a channel steel, and the bracket shaft is installed at the connecting end of the transverse bracket and the vertical bracket;

[0008] The two 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 transverse bracket is arranged at an acute angle with the horizontal plane.

[0009] Optionally, the wireless charging transmitting module includes a slide rail mounted on the end surface 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 avoidance groove is opened on the end surface of the vertical bracket, the upper end of the threaded slider passes through the long avoidance groove and is connected to the guide rail slider, a driving motor is also installed in the groove of the vertical bracket, and the power output shaft of the driving motor is connected to one end of the threaded rod.

[0011] Optionally, a first card rack is installed on the guide rail slider;

[0012] A first shell is mounted on the first card rack, a wireless charging transmitter module is mounted in the first shell, and a plurality of arbitrarily rotatable balls are mounted on the outer end surface of the first shell.

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

[0014] The wheel limit block is slidably arranged in a slider box with an opening at the 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 placement groove, the wheel limit block is slidably sleeved on the guide rod, and the guide rods on both sides of the wheel limit block are sleeved with return springs, and the two ends of the return spring are respectively connected to the wheel limit block and the side walls of the slider box.

[0015] Optionally, a plurality of roller modules are embedded and installed on the end surface of the transverse bracket, and the axis directions of the plurality of roller modules are the same as the length direction of the arc-shaped groove;

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

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

[0018] The first box and the second box are both opened at one end close to the slider box, the base is installed in the first box, and the first box is provided with an escape notch for escaping the L-shaped rotating frame.

[0019] Optionally, a first baffle and a second baffle are respectively installed at both ends of the wheel limit block;

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

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

[0022] Both ends of the push plate are equipped with push plate shafts, both ends of the push plate shaft at one end are slidably arranged in the long sliding hole, and both ends of the push plate shaft at the other end are respectively installed on two support ears below the horizontal bracket groove.

[0023] Optionally, the receiving end includes a second shell, and a wireless charging receiving module installed in the second shell, and the second shell is installed on the frame of the electric bicycle on one side of the 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 to transmit electric energy.

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

[0026] 1. The present application improves the charging efficiency of the wireless charging device by providing a sliding wheel limit block and a wireless charging transmitting module, and opening an arc-shaped groove on the wheel limit block to achieve alignment of the transmitting end and the receiving end in three directions.

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

[0028] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0031] Figure 2 The figure is a schematic diagram of the structure of the transmitting end of the wireless charging device for an electric bicycle of the present invention.

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

[0033] Figure 4 It 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 It is a schematic diagram of the positions of the wheel limit block, the push plate and the second baffle of the present invention.

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

[0036] Figure 7 It is a schematic diagram of the structure when the wheel of the present invention begins to contact with the transmitting end.

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

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

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

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

[0041] Example:

[0042] like Figure 1 and Figure 2 The electric bicycle wireless charging device with automatic position adjustment shown in the figure comprises a transmitting end and a receiving end, wherein the transmitting end comprises 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 a bracket rotating shaft 3 of the L-shaped rotating frame 2;

[0043] The L-shaped rotating frame 2 includes a transverse bracket 201 and a vertical bracket 202 which are arranged perpendicular to each other, a wireless charging transmitting module is slidably arranged on the vertical bracket 202, a wheel limit block 5 is slidably arranged under the transverse bracket 201 on one side of the base 1, a placement groove 501 for avoiding the transverse bracket 201 is provided on the wheel limit block 5, and an arc-shaped groove 502 for placing the wheel of the electric bicycle is provided on the wheel limit block 5.

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

[0045] 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 transverse 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 pushing the electric bicycle in. When the electric bicycle is pushed in, the wheel contacts the vertical bracket 201, which drives the L-shaped rotating frame 2 around the bracket shaft 3. When the wheel completely enters the arc groove 502, the vertical bracket 202 rotates to a vertical position.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, the receiving end includes a second shell 28 and a wireless charging receiving module installed in the second shell 28, and the second shell 28 is installed on the 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 to transmit electric energy.

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

[0050] In this embodiment, the placement groove 501 is opened in the middle of the arc groove 502. After the wheel enters, it is always located at the bottom of the arc groove 502 under the action of gravity, that is, the center line of the length direction of the horizontal 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 of the length direction of the horizontal 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 groove 502, the vertical center lines of the second housing 28 and the first housing 12 can be aligned, and the alignment in one direction is achieved.

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, the wireless charging transmitting module includes a slide rail 6 mounted on the end surface 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, and 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 avoidance groove 203 is opened on the end surface of the vertical bracket 202. The upper end of the threaded slider 9 passes through the long avoidance groove 203 and is connected to the guide rail slider 7. A drive motor 10 is also installed in the groove of the vertical bracket 202, and the power output shaft of the drive motor 10 is connected to one end of the threaded rod 8.

[0053] In this embodiment, if Figure 8 As shown, when the first shell 12 and the second shell 28 are in contact with each other, the threaded slider 9, the guide slider 7, the first card holder 11 and the first shell 12 are driven by the driving motor 10 to move along the slide rail 6, so that the first shell 12 and the second shell 28 are facing each other in the vertical direction.

[0054] As an embodiment of the present application, the device further comprises an image recognition module (not shown in the figure) installed on the L-shaped rotating frame 2. Figure 8 The image at the moment shown is taken, and the offset distance between the first shell 12 and the second shell 28 in the vertical direction is determined by identifying and analyzing the image, and the stroke of the drive motor 10 is controlled to move the first shell 12 to a position where it is completely in contact with the second shell 28.

[0055] As another embodiment of the present application, a signal receiving coil and a signal demodulation circuit are arranged in the first housing 12, and a signal transmitting coil, a signal modulation circuit and a collection circuit are arranged in the second housing 28. Figure 8At the moment shown, the power information of the receiving end at this time is collected by the acquisition circuit, and is modulated by the signal modulation circuit and 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 electric energy transmission at this time, and the stroke of the drive motor 10 is controlled by the power information. Through multiple adjustments, the first shell 12 is moved to a position that is completely in contact with the second shell 28.

[0056] like Figure 1 , Figure 2 and Figure 3 As shown, a first card holder 11 is installed on the guide rail slider 7;

[0057] A first shell 12 is mounted on the first card holder 11 , a wireless charging transmitter module is mounted in the first shell 12 , and a plurality of rotatable balls 13 are mounted on the outer end surface of the first shell 12 .

[0058] In this embodiment, the wireless charging transmitter module includes a high-frequency inverter circuit, a primary compensation circuit and a power transmission coil installed in the first shell 12. The input end of the high-frequency inverter circuit is connected to a DC power supply. The high-frequency inverter circuit can use a full-bridge inverter, and the primary compensation circuit can use LC, LCC and other topological structures. In this embodiment, a number of balls 13 are embedded in the first shell 12. When the first shell 12 contacts the second shell 28, the contact changes from sliding contact to rolling contact, avoiding damage to the outer end surfaces of the first shell 12 and the second shell 28. As another embodiment of the present application, the second shell 28 is also equipped with a number of balls that can rotate arbitrarily.

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

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

[0061] In this embodiment, if Figure 7As shown, when the electric bicycle is pushed in, the wheel of the electric bicycle contacts the transverse bracket 201 and presses down the transverse bracket 201, so that the L-shaped rotating frame 2 rotates around the bracket shaft 3. When the first shell 12 contacts the second shell 28 (the first shell 12 has not rotated to the vertical position at this time), the first shell 12 pushes the second shell 28 and the charging end of the electric bicycle to move toward the end away from the base 1 until the first shell 12 moves to the vertical position. Figure 8 As shown, the ball 13 on the first housing 12 abuts against the end surface of the second housing 28 .

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

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

[0064] The wheel limit blocks 5 at both sides of the arc groove 502 are further provided with limit plates 503 , and the wheel limit blocks 5 at both ends of the arc groove 502 are provided with guide bevels 504 for facilitating the pushing of the electric bicycle.

[0065] In this embodiment, the guide bevel 504 is provided to facilitate the electric bicycle wheel to enter the arc groove 502, and the limit plate 503 is provided to limit the wheel width of the electric bicycle. If the width exceeds the limit, the transmitter of the electric bicycle cannot meet its wireless charging requirements. In this embodiment, a plurality of roller modules 27 are provided. When the first shell 12 and the second shell 28 collide, and the wheel limit block 5 and the charging end of the electric bicycle are pushed to move along the guide rod 15, the electric bicycle wheel rolls in contact with the roller module 27, reducing the friction.

[0066] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the two 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 in the ground, so objects (stones, mud, etc.) on the outside and the wheels can easily fall into the placement groove 501. If there are stones and mud in the placement groove 501, it is difficult for the transverse bracket 201 to be pressed down into place when the electric bicycle is pushed in, so that the first shell 12 cannot be rotated to a vertical position to fit the end surface of the second shell 28. Therefore, the present application sets a push plate 24 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 pushed down to the bottom of the horizontal bracket 201. The plate 24 is set at an angle to the horizontal plane. When foreign objects such as stones and mud fall in, they will first fall on the push plate 24, and then slide into the concave groove of the second baffle 20 through the inclined push plate 24. When the L-shaped rotating frame 2 rotates, the front end of the push plate 24 is driven to move along the long slide hole 23, and the front end of the push plate 24 moves toward the end close to the second box 18. During the movement, the foreign objects are pushed toward the end close to the second box 18. When there are many foreign objects, they can also enter the second box 18 through the T-shaped notch 22. It is only necessary to clean the concave groove of the second baffle 20 and the second box 18 regularly to ensure 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 rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An electric bicycle wireless charging device with automatic position adjustment, comprising a transmitting end and a receiving end, characterized in that: The transmitting end comprises a base (1) and an L-shaped rotating frame (2) rotatably mounted on the base (1), wherein a return torsion spring (4) is sleeved on a support rotating shaft (3) of the L-shaped rotating frame (2); The L-shaped rotating frame (2) comprises a transverse bracket (201) and a vertical bracket (202) which are arranged perpendicular to each other, a wireless charging transmitting module is slidably arranged on the vertical bracket (202), a wheel stop block (5) is slidably arranged below the transverse bracket (201) on one side of the base (1), a placement groove (501) for avoiding the transverse bracket (201) is provided on the wheel stop block (5), and an arc-shaped groove (502) for placing the wheel of the electric bicycle is provided on the wheel stop block (5).

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

3. The electric bicycle wireless charging device with automatic position adjustment according to claim 2, characterized in that: The wireless charging transmission module comprises a slide rail (6) mounted on the end surface 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 avoidance groove (203) is provided on the end surface of the vertical bracket (202), the upper end of the threaded slider (9) passes through the long avoidance groove (203) and is connected to the guide rail slider (7), and 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).

4. The electric bicycle wireless charging device with automatic position adjustment according to claim 3, characterized in that: A first card holder (11) is installed on the guide rail slider (7); A first shell (12) is mounted on the first card holder (11), a wireless charging transmitter module is mounted inside the first shell (12), and a plurality of arbitrarily rotatable balls (13) are mounted on the outer end surface of the first shell (12).

5. The electric bicycle wireless charging device with automatic position adjustment according to claim 4, characterized in that: The length direction of the arc-shaped groove (502) is arranged perpendicular to the length direction of the placement groove (501); The wheel limit block (5) is slidably arranged in a slider box (14) with an opening at the upper end. A guide rod (15) is installed in the slider box (7). The axial direction of the guide rod (15) is the same as the length direction of the placement groove (501). The wheel limit block (5) is slidably sleeved on the guide rod (15). The guide rods (15) on both sides of the wheel limit block (5) are sleeved with return springs (16). The two ends of the return spring (16) are respectively connected to the side walls of the wheel limit block (5) and the slider box (14).

6. The electric bicycle wireless charging device with automatic position adjustment according to claim 5, characterized in that: A plurality of roller modules (27) are also embedded and installed on the end surface of the transverse bracket (201), and the axial directions of the plurality of roller modules (27) are the same as the length direction of the arc-shaped groove (502); The wheel limit blocks (5) on both sides of the arc-shaped groove (502) are also provided with limit plates (503), and the wheel limit blocks (5) at both ends of the arc-shaped groove (502) are provided with guide bevels (504) for facilitating the pushing of the electric bicycle.

7. The electric bicycle wireless charging device with automatic position adjustment according to claim 6, characterized in that: The two ends of the slider box (14) are respectively connected to a first box body (17) and a second box body (18); The first box body (17) and the second box body (18) are both opened at one end close to the slider box (14); the base (1) is installed in the first box body (17); and the first box body (17) is provided with an escape notch for escaping the L-shaped rotating frame (2).

8. The electric bicycle wireless charging device with automatic position adjustment according to claim 7, characterized in that: A first baffle (19) and a second baffle (20) are respectively installed at both ends of the wheel limiting block (5); A first notch (21) for the first baffle plate (19) to pass through is provided on the side wall of the slider box (14) close to the first box body (17); the second baffle plate (20) is a baffle plate with a concave through groove in the middle; and a T-shaped notch (22) for the second baffle plate (20) to pass through is provided on the side wall of the slider box (14) close to the second box body (18).

9. The electric bicycle wireless charging device with automatic position adjustment according to claim 8, characterized in that: Long sliding holes (23) are provided on both side walls of the concave through groove of the second baffle plate (20); Both ends of the push plate (24) are equipped with push plate rotating shafts. The two ends of the push plate rotating shaft at one end are respectively slidably arranged in the long sliding hole (23), and the two ends of the push plate rotating shaft at the other end are respectively installed on two supporting ears (25) below the groove of the horizontal bracket (201).

10. The electric bicycle wireless charging device with automatic position adjustment according to claim 1, characterized in that: The receiving end comprises a second shell (28) and a wireless charging receiving module installed in the second shell (28), and the second shell (28) is installed on a frame (28) on one side of the wheel of the electric bicycle; 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 to transmit electric energy.

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