Hand shifting speed change device of electric bicycle and electric bicycle

Abstract

The utility model provides a hand shifting speed change device of an electric bicycle and the electric bicycle, the electric bicycle is provided with a brake Hall sensor fixedly connected to a handlebar, and the hand shifting speed change device comprises a shell with an inner cavity, a magnet, a speed change Hall sensor, a magnetism isolating component, a connecting component and a shifting rod; the shell can be fixedly connected to a handlebar of the electric bicycle, the speed change Hall sensor is fixedly arranged in the inner cavity, the magnet is movably arranged in the inner cavity, a connecting through hole is formed in the wall of the inner cavity, and the connecting part penetrates through the connecting through hole. The end, located in the inner cavity, of the spring is connected with the magnet, and the end, located outside the shell, of the spring is connected with the deflector rod; the magnetism isolating part is fixedly arranged in the inner cavity and located between the magnet and the brake Hall sensor. The magnetic force generated by the magnet in the manual shifting speed change device on the brake Hall sensor can be blocked, so that the influence on the brake Hall sensor is avoided, and the control accuracy of the brake Hall sensor on the brake work is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electric bicycle manufacturing, and particularly relates to a manual shift device for an electric bicycle and an electric bicycle. Background Art

[0002] At present, in the manufacturing of electric bicycles, manual shift devices have been widely used. The existing manual shift device includes a housing fixedly arranged on the handlebar, a shift Hall sensor, a magnet and a shift lever. The shift Hall sensor is fixedly arranged inside the housing and is electrically connected to the controller of the electric bicycle. The magnet is movably arranged inside the housing. The shift lever is located outside the housing and is connected to the magnet. People can drive the magnet to move relative to the shift Hall sensor through the shift lever to change the magnetic force emitted by the magnet to the shift Hall sensor, and then the shift Hall sensor sends the magnetic force change information of the magnet collected by it to the controller, and the controller changes the vehicle speed of the electric bicycle according to this information.

[0003] In actual manufacturing, a braking device including a brake Hall sensor is also installed on the handlebar of the electric vehicle. In actual use, the magnet will also emit magnetic force to the brake Hall sensor, which will affect the brake Hall sensor and cause inaccurate control of the brake work by the brake Hall sensor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a manual shift device for an electric bicycle and an electric bicycle, which can block the magnetic force emitted by the magnet in the manual shift device to the brake Hall sensor, thereby avoiding affecting the brake Hall sensor and ensuring the accuracy of the control of the brake work by the brake Hall sensor.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A manual shift device for an electric bicycle, the electric bicycle has a brake Hall sensor fixedly connected to the handlebar, and the manual shift device includes: a housing with an inner cavity, a magnet, a shift Hall sensor, a magnetic isolation component, a connecting component, and a shift lever;

[0007] The housing can be fixedly connected to the handlebar of the electric bicycle. The shift Hall sensor is fixedly arranged in the inner cavity. The magnet is movably arranged in the inner cavity. A connecting through hole is arranged on the wall of the inner cavity. The connecting component is inserted through the connecting through hole, and one end of it located inside the inner cavity is connected to the magnet, and the end located outside the housing is connected to the shift lever, so that the shift lever can drive the magnet to move relative to the shift Hall sensor through the connecting component;

[0008] The magnetic isolation component is fixedly arranged in the inner cavity and located between the magnet and the brake Hall sensor to block the magnetic force emitted by the magnet towards the brake Hall sensor.

[0009] Preferably, it further includes a support disk;

[0010] The support disk is rotatably arranged in the inner cavity. One end of the connecting component inside the inner cavity and the magnet are both fixedly connected to the support disk, so that the lever can drive the support disk to drive the magnet to rotate relative to the shift Hall sensor from the first position towards the second position.

[0011] Preferably, it further includes a reset torsion spring;

[0012] The reset torsion spring is sleeved on the connecting component, with one end connected to the support disk and the other end connected to the inner wall of the inner cavity, to drive the support disk to drive the magnet to rotate from the second position towards the first position by its own elastic force.

[0013] Preferably, a first through hole is provided on the support disk, and a second through hole is provided on the lever. The axes of the first through hole and the second through hole both coincide with the axis of the connecting through hole;

[0014] The connecting component includes a screw and a nut matching the screw. The threaded end of the screw sequentially passes through the first through hole, the connecting through hole and the second through hole. The screw head of the screw is located on the side of the support disk facing away from the lever, and the threaded end of the screw extends out from the side of the second through hole facing away from the housing. The nut is threadedly connected to the threaded end of the screw.

[0015] Preferably, it further includes a limit sleeve;

[0016] The limit sleeve is sleeved on the screw, and its two axial ends can respectively abut against the nut and the screw head of the screw to limit the distance between the nut and the screw head of the screw.

[0017] Preferably, the inner cavity includes a first cavity and a second cavity. One end of the housing facing the brake Hall sensor is the first end;

[0018] In the projection perpendicular to the axis of the connecting through hole, the second cavity is located between the first cavity and the first end. The support disk is located inside the first cavity. The shift Hall sensor is fixedly arranged inside the second cavity. The magnetic isolation component is fixedly arranged inside the second cavity, and the magnetic isolation component is located on the side of the shift Hall sensor facing away from the support disk.

[0019] Preferably, a first limiting member and a second limiting member are fixedly arranged in the first cavity;

[0020] When the support disk rotates between the first limiting member and the second limiting member, and when the support disk is in the first position, the support disk abuts against the first limiting member, and when the support disk is in the second position, the support disk abuts against the second limiting member.

[0021] Preferably, in the projection perpendicular to the axis of the connecting through-hole, the shape of the second cavity is a sector ring centered on the rotation axis of the support disk. The two ends of the sector ring are respectively the first side wall and the second side wall of the second cavity, and the arc with the larger diameter of the sector ring is the first inner wall of the second cavity;

[0022] The magnetic isolation member includes a shielding plate, a first connecting plate and a second connecting plate;

[0023] The shape of the shielding plate matches the shape of the first inner wall. The first connecting plate and the second connecting plate are respectively fixedly connected to both ends of the shielding plate. The first connecting plate is detachably connected to the first side wall, and the second connecting plate is detachably connected to the second side wall.

[0024] Preferably, a first hook is arranged on the first side wall, and a first hole is arranged on the first connecting plate. The first hook is engaged in the first hole to fix the first connecting plate on the first side wall;

[0025] and / or

[0026] A second hook is arranged on the second side wall, and a second hole is arranged on the second connecting plate. The second hook is engaged in the second hole to fix the second connecting plate on the second side wall.

[0027] An electric bicycle includes a manual shifting device for an electric bicycle having any of the above technical features.

[0028] By adopting the technical solution that the magnetic isolation member of the manual shifting device of the electric bicycle of the present invention is fixedly arranged in the inner cavity and is located between the magnet and the brake Hall sensor to block the magnetic force emitted by the magnet towards the brake Hall sensor, the magnetic force emitted by the magnet in the manual shifting device on the brake Hall sensor can be blocked, thereby avoiding affecting the brake Hall sensor and ensuring the accuracy of the brake Hall sensor's control of the braking operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the installation state of the manual shifting device of the electric bicycle of the present invention;

[0030] Figure 2 Schematic cross-sectional structure diagram of an embodiment of the manual shift device of the electric bicycle of the present utility model;

[0031] Figure 3 is Figure 2 Schematic view of the A-A cross-section in (the support disk is in the first position);

[0032] Figure 4 is Figure 2 Schematic view of the A-A cross-section in (the support disk is in the second position).

[0033] In the figure: 1 - handlebar; 2 - brake Hall sensor; 3 - housing; 4 - inner cavity; 5 - magnet; 6 - shift Hall sensor; 7 - magnetic isolation component; 8 - connecting component; 9 - shift lever; 10 - support disk; 11 - return torsion spring; 12 - connecting through hole; 13 - first through hole; 14 - second through hole; 15 - screw; 16 - nut; 17 - limiting sleeve; 18 - first cavity; 19 - second cavity; 20 - first end; 21 - first limiting component; 22 - second limiting component; 23 - first side wall; 24 - second side wall; 25 - first inner wall; 26 - shielding plate; 27 - first connecting plate; 28 - second connecting plate; 29 - first hook; 30 - first locking hole; 31 - second hook; 32 - second locking hole. Detailed implementation manners

[0034] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the manual shift device of the electric bicycle and the electric bicycle of the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0035] Such as Figure 1 、 2, as shown in Figures 3 and 4, a manual shifting device for an electric bicycle. The electric bicycle has a brake Hall sensor 2 fixedly connected to the handlebar 1. The brake Hall sensor 2 is electrically connected to the brake device (not shown in the figure) of the electric bicycle to control the brake device to perform braking work. The manual shifting device includes: a housing 3 with an inner cavity 4, a magnet 5, a shifting Hall sensor 6, a magnetic shielding component 7, a connecting component 8, and a lever 9. The housing 3 can be fixedly connected to the handlebar 1 of the electric bicycle. The shifting Hall sensor 6 is fixedly arranged in the inner cavity 4, and the magnet 5 is movably arranged in the inner cavity 4. A connecting through-hole 12 is provided on the wall of the inner cavity 4. The connecting component 8 is inserted through the connecting through-hole 12, and one end thereof located inside the inner cavity 4 is connected to the magnet 5, and the end located outside the housing 3 is connected to the lever 9, so that the lever 9 can drive the magnet 5 to move relative to the shifting Hall sensor 6 through the connecting component 8. Among them, the shifting Hall sensor 6 is electrically connected to the controller (not shown in the figure) of the electric bicycle. When people drive the magnet 5 to move relative to the shifting Hall sensor 6 through the lever 9, the magnetic force emitted by the magnet 5 on the shifting Hall sensor 6 will change. At this time, the shifting Hall sensor 6 sends the magnetic force change information of the magnet 5 collected by it to the controller, and the controller changes the vehicle speed of the electric bicycle according to this information. The magnetic shielding component 7 is fixedly arranged in the inner cavity 4 and is located between the magnet 5 and the brake Hall sensor 2 to block the magnetic force emitted by the magnet 5 towards the brake Hall sensor 2. By adopting such a technical solution, the magnetic force emitted by the magnet 5 in the manual shifting device can be blocked by the magnetic shielding component 7, thereby avoiding affecting the brake Hall sensor 2 and ensuring the accuracy of the brake Hall sensor 2 in controlling the brake device. In actual production, the magnetic shielding component 7 can be made of silicon steel sheets, but it is not limited thereto, and other materials that can achieve the purpose of magnetic shielding can also be used.

[0036] Specifically, as Figure 2 , 3 , 4 shows, it further includes a support disk 10. The support disk 10 is rotatably arranged in the inner cavity 4. One end of the connecting component 8 located inside the inner cavity 4 and the magnet 5 are both fixedly connected to the support disk 10, so that the lever 9 can drive the support disk 10 to drive the magnet 5 to rotate from a first position towards a second position relative to the shifting Hall sensor 6. Further, as Figure 2 shows, it further includes a return torsion spring 11. The return torsion spring 11 is sleeved on the connecting component 8, and one end is connected to the support disk 10 and the other end is connected to the inner wall of the inner cavity 4 to drive the support disk 10 to drive the magnet 5 to rotate from the second position towards the first position by relying on its own elastic force. The support disk 10 drives the magnet 5 to rotate from the first position to the second position by a person pressing the lever 9 by hand. When a person no longer presses the lever 9, the return torsion spring 11 drives the support disk 10 to drive the magnet 5 to rotate from the second position to the first position by relying on its own elastic force.

[0037] As an implementable manner, as Figure 2 shown, a first through hole 13 is provided on the support disk 10, and a second through hole 14 is provided on the lever 9. The axes of the first through hole 13 and the second through hole 14 coincide with the axis of the connecting through hole 12. The connecting member 8 includes a screw 15 and a nut 16 that matches the screw 15. The threaded end of the screw 15 sequentially passes through the first through hole 13, the connecting through hole 12, and the second through hole 14, and the head of the screw 15 of the screw 15 is located on the side of the support disk 10 facing away from the lever 9, and the threaded end of the screw 15 extends out from the side of the second through hole 14 facing away from the housing 3. The nut 16 is threadedly connected to the threaded end of the screw. In this way, it is convenient to install or disassemble between the support disk 10 and the lever 9. Further, as Figure 2 shown, a limit sleeve 17 is further included. The limit sleeve 17 is sleeved on the screw 15, and its two axial ends can respectively abut against the nut 16 and the head of the screw 15 of the screw 15 to limit the distance between the nut 16 and the head of the screw 15 of the screw 15. This can prevent the rotation of the support disk 10 from being affected due to the lever 9 being too tightly attached to the outer wall of the housing 3 and / or the support disk 10 being too tightly attached to the inner wall of the housing 3.

[0038] As an implementable manner, as Figure 3 、 4 shown, the inner cavity 4 includes a first cavity 18 and a second cavity 19. One end of the housing 3 facing the brake Hall sensor 2 is the first end 20. In the projection perpendicular to the axis of the connecting through hole 12, the second cavity 19 is located between the first cavity 18 and the first end 20, the support disk 10 is located within the first cavity 18, the variable speed Hall sensor 6 is fixedly arranged within the second cavity 19, the magnetic isolation component 7 is fixedly arranged within the second cavity 19, and the magnetic isolation component 7 is located on the side of the variable speed Hall sensor 6 facing away from the support disk 10. This can ensure that the magnetic isolation component 7 does not block the magnetic force emitted by the magnet 5 to the variable speed Hall sensor 6, thereby ensuring the sensitivity of the variable speed Hall sensor 6.

[0039] Specifically, as Figure 3 、 4 shown, a first limiting component 21 and a second limiting component 22 are fixedly arranged within the first cavity 18. When the support disk 10 rotates between the first limiting component 21 and the second limiting component 22, and when the support disk 10 is in the first position, the support disk 10 abuts against the first limiting component 21, and when the support disk 10 is in the second position, the support disk 10 abuts against the second limiting component 22.

[0040] Further, as Figure 3As shown, on the projection perpendicular to the axis of the connecting through-hole 12, the shape of the second cavity 19 is a sector ring centered on the rotation axis of the support disk 10. The two ends of the sector ring are respectively the first side wall 23 and the second side wall 24 of the second cavity 19, and the arc with a larger diameter of the sector ring is the first inner wall 25 of the second cavity 19. The magnetic shielding component 7 includes a shielding plate 26, a first connecting plate 27, and a second connecting plate 28. The shape of the shielding plate 26 matches the shape of the first inner wall 25. The first connecting plate 27 and the second connecting plate 28 are respectively fixedly connected to both ends of the shielding plate 26. The first connecting plate 27 is detachably connected to the first side wall 23, and the second connecting plate 28 is detachably connected to the second side wall 24. This can ensure the effectiveness of the shielding plate 26 in blocking the magnetic force emitted by the magnet 5 towards the brake Hall sensor 2. The shielding plate 26, the first connecting plate 27, and the second connecting plate 28 can be made of the same material, integrally formed, and bent.

[0041] Specifically, as Figure 3 shown in, a first hook 29 is provided on the first side wall 23, and a first hole 30 is provided on the first connecting plate 27. The first hook 29 is snapped into the first hole 30 to fix the first connecting plate 27 on the first side wall 23. And / or, a second hook 31 is provided on the second side wall 24, and a second hole 32 is provided on the second connecting plate 28. The second hook 31 is snapped into the second hole 32 to fix the second connecting plate 28 on the second side wall 24. The first hook 29 and the second hook 31 can be made of an elastic material.

[0042] To achieve the invention purpose, the present utility model further provides an electric bicycle, including the manual shifting device of the electric bicycle described in any of the above embodiments.

[0043] The above embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. A hand-shift speed change device for an electric bicycle, the electric bicycle having a brake Hall sensor (2) fixedly connected to a handlebar (1), characterized in that: include: A housing (3) having an inner cavity (4), a magnet (5), a speed-changing Hall sensor (6), a magnetic isolation component (7), a connecting component (8), and a lever (9); The housing (3) can be fixedly connected to the handlebar (1) of the electric bicycle, the speed-changing Hall sensor (6) is fixedly arranged in the inner cavity (4), the magnet (5) is movably arranged in the inner cavity (4), a connecting through hole (12) is arranged on the wall of the inner cavity (4), the connecting component (8) is inserted into the connecting through hole (12), and one end of the connecting component located inside the inner cavity (4) is connected to the magnet (5), and the other end located outside the housing (3) is connected to the shifting rod (9), so that the shifting rod (9) can drive the magnet (5) to move relative to the speed-changing Hall sensor (6) through the connecting component (8); The magnetic isolation component (7) is fixedly arranged in the inner cavity (4) and is located between the magnet (5) and the brake Hall sensor (2) to block the magnetic force emitted by the magnet (5) toward the brake Hall sensor (2).

2. The manual speed change device for an electric bicycle according to claim 1, characterized in that: Also includes a support plate (10); The support plate (10) is rotatably arranged in the inner cavity (4), and one end of the connecting component (8) located in the inner cavity (4) and the magnet (5) are fixedly connected to the support plate (10), so that the shifting rod (9) can drive the support plate (10) to drive the magnet (5) to rotate from a first position toward a second position relative to the speed change Hall sensor (6).

3. The manual speed change device for an electric bicycle according to claim 2, characterized in that: Also includes a return torsion spring (11); The return torsion spring (11) is sleeved on the connecting component (8), and one end is connected to the support plate (10), and the other end is connected to the inner wall of the inner cavity (4), so as to drive the support plate (10) to drive the magnet (5) to rotate from the second position toward the first position by relying on its own elastic force.

4. The manual speed change device for an electric bicycle according to claim 2, characterized in that: The support plate (10) is provided with a first through hole (13), the lever (9) is provided with a second through hole (14), and the axes of the first through hole (13) and the second through hole (14) both coincide with the axis of the connecting through hole (12); The connecting component (8) comprises a screw (15) and a nut (16) matching the screw (15); the threaded end of the screw (15) passes through the first through hole (13), the connecting through hole (12) and the second through hole (14) in sequence; the screw (15) head of the screw (15) is located on a side of the support plate (10) facing away from the lever (9); the threaded end of the screw (15) protrudes from a side of the second through hole (14) facing away from the housing (3); and the nut (16) is threadedly connected to the threaded end of the screw.

5. The manual speed change device for an electric bicycle according to claim 4, characterized in that: Also includes a limiting sleeve (17); The limiting sleeve (17) is sleeved on the screw (15), and its two axial ends are respectively capable of abutting against the nut (16) and the screw head (15) of the screw (15) to limit the distance between the nut (16) and the screw head of the screw (15).

6. The manual shifting device for an electric bicycle according to any one of claims 2 to 5, characterized in that: The inner cavity (4) comprises a first cavity (18) and a second cavity (19); an end of the housing (3) facing the brake Hall sensor (2) is a first end (20); In a projection perpendicular to the axis of the connecting through hole (12), the second cavity (19) is located between the first cavity (18) and the first end (20), the support plate (10) is located within the first cavity (18), the variable speed Hall sensor (6) is fixedly arranged within the second cavity (19), the magnetic isolation component (7) is fixedly arranged within the second cavity (19), and the magnetic isolation component (7) is located on a side of the variable speed Hall sensor (6) that is opposite to the support plate (10).

7. The manual speed change device for an electric bicycle according to claim 6, characterized in that: A first limiting component (21) and a second limiting component (22) are fixedly arranged in the first cavity (18); When the support plate (10) rotates between the first limiting component (21) and the second limiting component (22), and when the support plate (10) is located at a first position, the support plate (10) abuts against the first limiting component (21), and when the support plate (10) is located at a second position, the support plate (10) abuts against the second limiting component (22).

8. The manual speed change device for an electric bicycle according to claim 6, characterized in that: In a projection perpendicular to the axis of the connecting through hole (12), the shape of the second cavity (19) is a fan-shaped ring with the rotation axis of the support plate (10) as the center, the two ends of the fan-shaped ring are respectively the first side wall (23) and the second side wall (24) of the second cavity (19), and the arc with a larger diameter of the fan-shaped ring is the first inner wall (25) of the second cavity (19); The magnetic isolation component (7) comprises a shielding plate (26), a first connecting plate (27) and a second connecting plate (28); The shape of the shielding plate (26) matches the shape of the first inner wall (25); the first connecting plate (27) and the second connecting plate (28) are respectively fixedly connected to two ends of the shielding plate (26); the first connecting plate (27) is detachably connected to the first side wall (23); and the second connecting plate (28) is detachably connected to the second side wall (24).

9. The manual shifting device for an electric bicycle according to claim 8, characterized in that: A first hook (29) is provided on the first side wall (23), and a first hook hole (30) is provided on the first connecting plate (27), wherein the first hook (29) is hooked on the first hook hole (30) to fix the first connecting plate (27) on the first side wall (23); and / or, A second hook (31) is provided on the second side wall (24), and a second hook hole (32) is provided on the second connecting plate (28); the second hook (31) is hooked into the second hook hole (32) to fix the second connecting plate (28) on the second side wall (24).

10. An electric bicycle, characterized in that: A manual speed change device for an electric bicycle comprising the device as claimed in any one of claims 1 to 9.

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