Hand shifting speed change device and electric bicycle

Abstract

The utility model discloses a manual shifting speed change device which comprises a shell and a shifting rod, a magnet is movably arranged in the shell, and the magnet is connected with the shifting rod through a connecting part so that the shifting rod can drive the magnet to move from a first position to a second position through the connecting part. A first speed change Hall sensor and a second speed change Hall sensor are fixedly arranged in the shell and are arranged in parallel in the movement direction of the magnet, so that the movement of the magnet can be recognized by the first speed change Hall sensor and the second speed change Hall sensor from different angles. According to the utility model, the magnet can stably move under the driving of the driving lever through the uniquely designed parts, and the angle change of the magnet can be accurately identified by arranging the double-speed change Hall sensor, so that the accurate speed change control of the electric bicycle is realized, and the control performance of the electric bicycle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric bicycle manufacturing technical field especially, relates to a hand dial gear changing device and electric bicycle. BACKGROUND

[0002] The hand dial gear changing device applied to electric bicycle is arranged on the electric bicycle handle, including dial lever, magnet and gear changing hall sensor etc. When using, the operator drives the magnet to move relative to the gear changing hall sensor through the dial lever to change the magnetic force of the magnet to the gear changing hall sensor, and then the gear changing hall sensor sends the magnet force change information of the magnet collected to the speed controller, and the speed controller changes the speed of the electric bicycle according to the information.

[0003] In actual use, because the brake device of the electric bicycle handle is also provided with brake hall sensor, if the magnet magnetic force in the hand dial gear changing device is large, the position change of the magnet in the hand dial gear changing device may cause signal interference to the brake hall sensor, and if the magnet magnetic force in the hand dial gear changing device is small, the gear changing hall sensor is difficult to accurately identify the position change of the magnet and further difficult to accurately identify the gear changing time. SUMMARY

[0004] In order to solve one or more technical problems in the prior art, the utility model provides a hand dial gear changing device.

[0005] A hand dial gear changing device, including shell and dial lever, the shell wall of the shell is provided with through -hole, the dial lever is equipped with rotating barrel no.

[0006] The magnet is movably arranged in the shell, and the magnet is connected with the rotating barrel no. through the connecting part, so that the dial lever can drive the magnet to move from the first position to the second position through the connecting part.

[0007] The gear changing hall sensor is fixedly arranged in the shell, and the gear changing hall sensor at least includes the first gear changing hall sensor and the second gear changing hall sensor, and the first gear changing hall sensor and the second gear changing hall sensor are arranged in parallel along the movement direction of the magnet, so that the movement of the magnet can be identified by the first gear changing hall sensor and the second gear changing hall sensor from different angles respectively.

[0008] Preferably, the shell is also provided with the PCB board, the PCB board is provided with the single-chip microcomputer, and the first gear changing hall sensor and the second gear changing hall sensor are electrically connected with the single-chip microcomputer.

[0009] Preferably, the connecting part includes support disc, sleeve, screw no. and nut.

[0010] The support disc is provided with a magnet cavity and a rotating barrel two, the magnet is embedded in the magnet cavity, and the outer cylinder wall of the rotating barrel two is rotatably connected with the through hole.

[0011] The sleeve is arranged in the inner cavities of the rotating barrel one and the rotating barrel two, the screw one is connected with the nut after penetrating the inner cavity of the sleeve, and the screw one and the nut connect the sleeve, the rotating barrel one and the rotating barrel two into an integrated body capable of synchronous rotation.

[0012] Preferably, the lower part of the outer cylinder wall of the rotating barrel two is rotatably connected with the through hole, the upper part of the outer cylinder wall of the rotating barrel two is sleeved with a torsion spring, one end of the torsion spring is fixed with the support disc, and the other end of the torsion spring is connected with the inner wall of the shell, so that the elastic force of the torsion spring can drive the support disc to move the magnet from the second position to the first position.

[0013] Preferably, the magnet has an outer shape of a long arc, the support disc further comprises a fan-shaped part connected with the rotating barrel two, the magnet cavity is arranged in the fan-shaped part, and one end of the torsion spring is fixed with the fan-shaped part.

[0014] Preferably, the shell further comprises a limiting piece one and / or a limiting piece two;

[0015] When the magnet is in the first position, one end of the support disc abuts against the limiting piece one;

[0016] When the magnet is in the second position, the other end of the support disc abuts against the limiting piece two.

[0017] Preferably, the shell comprises a half shell one and a half shell two;

[0018] The through hole is arranged in the half shell one, and the half shell one is connected with the half shell two through a screw two.

[0019] Preferably, the shell two is provided with an arc-shaped part, one end of the arc-shaped part is rotatably connected with one end of a half pipe clamp through a shaft pin, and the other end of the arc-shaped part is detachably connected with the other end of the half pipe clamp through a screw three.

[0020] Preferably, the PCB board is detachably connected with the shell through a screw four.

[0021] The utility model further provides an electric bicycle, the electric bicycle includes the hand dial gear device.

[0022] The utility model has the advantages that:

[0023] The utility model discloses the component carries out the unique design, including support disc, sleeve, screw one and nut etc., make support disc, sleeve, rotating bucket one and rotating bucket two can be connected as the synchronous rotation of one body, has guaranteed the effective transmission of the magnet movement of the lever. Meanwhile, the screw head of screw one and nut abut at the upper and lower ends of sleeve respectively, avoided the lever and the outer wall of shell and / or support disc and the inner wall of shell too close, ensured the normal movement of each component. The magnet appearance is long strip arc and sets up in the magnet cavity of sector part, with the structure of support disc is matched, improved the space utilization, also is favorable to the distribution of magnetic field and the effect of variable speed hall sensor.

[0024] The utility model discloses at least two variable speed hall sensors are set up from different angles and recognize the magnet movement, compared to single sensor can more accurately identify the angle change of magnet, guarantee the accuracy requirement of variable speed identification, to realize more accurate variable speed control. The singlechip is arranged in the shell, and the variable speed hall sensor is electrically connected with the singlechip, and the difference of the sensing signal of two variable speed hall sensors can be converted into the speed change signal by implanting the program in the singlechip, and the singlechip is arranged in the shell and has higher integration and better stability, and can be conveniently connected with the speed controller of electric bicycle, and the speed control is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.

[0026] Figure 1 It is the external structure schematic of hand dial variable speed device according to the embodiment of the utility model Figure 1 ;

[0027] Figure 2 It is the external structure schematic of hand dial variable speed device according to the embodiment of the utility model Figure 2 ;

[0028] Figure 3 It is the external structure schematic of hand dial variable speed device according to the embodiment of the utility model Figure 3 ;

[0029] Figure 4 It is Figure 3 the sectional view of A-A direction in it;

[0030] Figure 5 It is the internal structure schematic of hand dial variable speed device when the magnet is in the first position according to the embodiment of the utility model;

[0031] Figure 6is the internal structure schematic diagram of the hand gear shifting device when the magnet is in the second position according to the embodiment of the utility model;

[0032] Figure 7 is the explosion view of the hand gear shifting device according to the embodiment of the utility model;

[0033] In the drawing,

[0034] 1, shell; 101, through hole; 10101, step; 102, limit piece one; 103, limit piece two; 104, half shell one; 105, half shell two; 10501, arc part; 106, screw two; 107, shaft pin; 108, half pipe card; 109, screw three; 2, shift lever; 201, rotating barrel one; 202, non-slip pattern; 3, magnet; 4, connecting component; 401, support disc; 40101, magnet cavity; 40102, rotating barrel two; 40103, fan-shaped part; 402, sleeve; 403, screw one; 404, nut; 5, speed hall sensor; 501, first speed hall sensor; 502, second speed hall sensor; 6, PCB board; 601, screw four 7, torsion spring. DETAILED DESCRIPTION

[0035] The present application will be described in detail below with reference to the accompanying drawings and embodiments. Each example is provided by way of explanation of the present application and is not intended to limit the present application. In fact, those skilled in the art will appreciate that modifications and variations can be made in the present application without departing from the scope or spirit of the present application. For example, features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present application include such modifications and variations as come within the scope of the appended claims and their equivalents.

[0036] In the description of the present application, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and does not require the present application to be constructed and operated in a particular orientation, therefore cannot be understood as a limitation of the present application. The terms "connected", "connected", "provided" used in the present application should be interpreted broadly, for example, can be fixedly connected, can also be detachably connected;It can be directly connected, or indirectly connected through an intermediate component;For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0037] As Figures 1-7As shown, a hand gear shifting device comprises a housing 1 and a shifting lever 2, the housing 1 is provided with a through hole 101 on the shell wall, the shifting lever 2 is provided with a rotating barrel 201, and the outer cylinder wall of the rotating barrel 201 is rotatably connected with the through hole 101;

[0038] A magnet 3 is movably arranged in the housing 1, and the magnet 3 is connected with the rotating barrel 201 through a connecting component 4, so that the shifting lever 2 can drive the magnet 3 to move from a first position to a second position through the connecting component 4;

[0039] A variable speed Hall sensor 5 is fixedly arranged in the housing 1, and the variable speed Hall sensor 5 at least comprises a first variable speed Hall sensor 501 and a second variable speed Hall sensor 502, the first variable speed Hall sensor 501 and the second variable speed Hall sensor 502 are arranged in parallel along the movement direction of the magnet 3, so that the movement of the magnet 3 can be recognized by the first variable speed Hall sensor 501 and the second variable speed Hall sensor 502 from different angles respectively.

[0040] The rotatable connection of the shifting lever 2 and the housing 1 through the rotating barrel 201 and the through hole 101, and the connection of the magnet and the shifting lever through the connecting component realize the driving of the shifting lever 2 to the movement of the magnet 3, so that the magnetic force of the magnet 3 to the variable speed Hall sensor 5 can be changed, and the variable speed function is realized. Compared with one Hall sensor, two Hall sensors can accurately recognize the angle change of the magnet 3, and can guarantee the accuracy requirement of variable speed recognition. The number of the first variable speed Hall sensor 501 and the second variable speed Hall sensor 502 is at least one, and more preferably, the number of the first variable speed Hall sensor 501 and the second variable speed Hall sensor 502 is more than two. In specific implementation, anti-skid lines 202 can also be arranged on the shifting lever 2.

[0041] In one specific embodiment of the present application:

[0042] The housing 1 is further provided with a PCB 6, and the PCB 6 is provided with a single-chip microcomputer, and the first variable speed Hall sensor 501 and the second variable speed Hall sensor 502 are electrically connected with the single-chip microcomputer.

[0043] In specific implementation, the difference of the sensing signals of the two variable speed Hall sensors 5 can be converted into a speed change signal by implanting a program in the single-chip microcomputer. The single-chip microcomputer can be arranged outside the housing 1 or inside the housing 1. The single-chip microcomputer arranged inside the housing 1 has higher integration and better stability, and can be conveniently connected with the speed controller of the electric bicycle.

[0044] In one specific embodiment of the present application:

[0045] The connecting component 4 comprises a support disc 401, a sleeve 402, a screw 403 and a nut 404.

[0046] The support disc 401 is provided with a magnet cavity 40101 and a rotating barrel two 40102, the magnet 3 is embedded in the magnet cavity 40101, the outer barrel wall of the rotating barrel two 40102 is rotatably connected with the through hole 101, the inner side of the through hole 101 is provided with a step 10101, and the barrel bottom of the rotating barrel two 40102 is arranged on the step 10101.

[0047] The sleeve 402 is arranged in the inner cavities of the rotating barrel one 201 and the rotating barrel two 40102, the screw one 403 is connected with the nut 404 after penetrating through the inner cavity of the sleeve 402, and the screw one 403 and the nut 404 connect the sleeve 402, the rotating barrel one 201 and the rotating barrel two 40102 as an integrated body that can rotate synchronously.

[0048] The screw head of the screw one 403 and the nut 404 are respectively abutted against the upper and lower ends of the sleeve 402, so that the abutting of the lever 2 and the outer wall of the shell 1 and / or the abutting of the support disc 401 and the inner wall of the shell 1 can be avoided.

[0049] In one specific embodiment of the utility model:

[0050] The outer barrel wall of the rotating barrel two 40102 is rotatably connected with the through hole 101, the upper part of the outer barrel wall of the rotating barrel two 40102 is sleeved with the torsion spring 7, one end of the torsion spring 7 is fixed with the support disc 401, and the other end of the torsion spring 7 is connected with the inner wall of the shell 1, so that the elastic force of the torsion spring 7 can drive the support disc 401 to move the magnet 3 from the second position to the first position.

[0051] The arrangement of the torsion spring 7 enables the support disc 401 to drive the magnet 3 to move from the second position to the first position under the action of the elastic force, realizes the automatic reset function of the magnet, and improves the use convenience of the hand-dial variable speed device.

[0052] In one specific embodiment of the utility model:

[0053] The magnet 3 is long arc-shaped in appearance, the support disc 401 further comprises a fan-shaped part 40103 connected with the rotating barrel two 40102, the magnet cavity 40101 is arranged in the fan-shaped part 40103, and one end of the torsion spring 7 is fixed with the fan-shaped part 40103.

[0054] The magnet 3 is designed as a long arc shape and is arranged in the magnet cavity 40101 of the fan-shaped part 40103, which is matched with the structure of the support disc 401, improves the space utilization, and is beneficial to the distribution of the magnetic field of the magnet and the signal recognition of the variable speed Hall sensor 5.

[0055] In one specific embodiment of the present application,

[0056] The shell 1 is further provided with a limiting piece one 102 and / or a limiting piece two 103;

[0057] When the magnet 3 is in the first position, one end of the support disc 401 abuts against the limiting piece one 102;

[0058] When the magnet 3 is in the second position, the other end of the support disc 401 abuts against the limiting piece two 103.

[0059] The limiting piece one 102 and / or the limiting piece two 103 can limit the movement range of the support disc 401, ensure that the magnet 3 moves within a specified position range, and improve the reliability and stability of the hand-operated gear shifting device.

[0060] In one specific embodiment of the present application,

[0061] The shell 1 comprises a half shell one 104 and a half shell two 105;

[0062] The through hole 101 is arranged on the half shell one 104, and the half shell one 104 is connected with the half shell two 105 through a screw two 106.

[0063] The shell 1 is connected by the half shell one 104 and the half shell two 105 through the screw two 106, which facilitates the assembly and maintenance of the hand-operated gear shifting device.

[0064] In one specific embodiment of the present application,

[0065] The shell two 105 is provided with an arc-shaped part 10501, one end of the arc-shaped part 10501 is rotatably connected with one end of a half pipe clamp 108 through a shaft pin 107, and the other end of the arc-shaped part 10501 is detachably connected with the other end of the half pipe clamp 108 through a screw three 109.

[0066] This structure design facilitates the installation and fixation of the hand-operated gear shifting device and the electric bicycle handlebar, and also facilitates the adjustment of the position of the hand-operated gear shifting device.

[0067] In one specific embodiment of the present application,

[0068] The PCB board 6 is detachably connected with the shell 1 through a screw four 601.

[0069] In the implementation, the operator can first connect the PCB with the variable speed Hall sensor, and then accurately install the same to the shell through the four screws, so as to meet the requirements of convenient installation, accurate positioning, and firm stability.

[0070] The following preferred specific embodiments are given without departing from the technical scheme of the utility model:

[0071] (I) on the component selection

[0072] The shell 1 body can be made of engineering plastics, such as acrylonitrile-butadiene-styrene (ABS). This material has good mechanical strength, impact resistance and dimensional stability, and is suitable for manufacturing shell components that require certain structural strength and complex shape. The limiting part one 102 and the limiting part two 103 can be integrally formed with the shell (1) by injection molding process.

[0073] The main body of the lever 2 can be made of engineering plastics, such as polycarbonate (PC), which has high strength, high toughness and good wear resistance, and can withstand frequent operation. The anti-slip pattern 202 on the surface of the lever 2 can be selected to have a depth of 0.5mm, a width of 1mm and a spacing of 2mm to increase the friction when holding with hands. The rotating barrel one 201 is integrally formed with the lever 2, and can be made of metal insert injection molding process, and the metal insert is made of aluminum alloy material to enhance the wear resistance and mechanical strength of the rotating barrel one 201.

[0074] The magnet 3 can be selected from a neodymium iron boron permanent magnet, such as a neodymium iron boron permanent magnet with a model number of N35, which has high magnetic energy product and strong magnetic characteristics, and can generate a stable and sufficient magnetic field to meet the requirements of the variable speed Hall sensor for magnetic field change detection.

[0075] The support disc 401 can be made of plastic material (such as ABS). The magnet cavity 40101 is shaped to match the magnet 3, and is slightly smaller than the outer shape of the magnet 3, so that the magnet 3 can be stably embedded therein.

[0076] The lower part of the outer cylinder wall of the rotating barrel two 40102 is gap fitted with the through hole 101, and the gap can be kept at 0.1~0.2mm to ensure good rotation performance.

[0077] The torsional spring 7 can be made of spring steel material, with a steel wire diameter of 1mm and an effective number of turns of 5 turns. One end of the torsional spring 7 is fixedly connected with the fan-shaped part 40103 of the support disc 401 through a hook, and the other end is connected with the fixed column of the inner wall of the shell 1.

[0078] The first variable speed Hall sensor 501 and the second variable speed Hall sensor 502 can adopt a linear Hall sensor commonly seen in the market, such as a Hall sensor with a model number of A1302, which can accurately detect the change of the magnetic field strength, and is fixed on the PCB board 6 by welding or patching. The PCB board 6 can adopt a glass fiber plate material, and the size is long. The single-chip microcomputer can be selected from the STM32 series single-chip microcomputers (such as STM32F103C8T6) of the STMicroelectronics Company, which has rich peripheral resources and strong processing capability, and can meet the requirements of processing the sensor signal and communicating with the vehicle speed controller. The single-chip microcomputer is electrically connected with the first variable speed Hall sensor 501 and the second variable speed Hall sensor 502 through the pins, so as to realize the collection and transmission of the signals.

[0079] (II) About product assembly

[0080] The required parts are cleaned to remove oil stains, dust and other impurities on the surface, so as to ensure the cleanliness of the surface of each part and the performance and reliability after assembly. At the same time, the size of each part is checked to see whether it meets the design requirements, whether it is damaged or defective, and if any problem is found, it is replaced in time.

[0081] One end of the torsion spring 7 is connected with the fan-shaped part 40103 of the support disc 401, the rotating barrel two 40102 is inserted from above the through hole 101, the other end of the torsion spring 7 is connected with the inner wall of the shell 1, and attention is paid to the installation direction of the torsion spring 7, so that it can provide elastic force for resetting the magnet 3; the rotating barrel one 201 is inserted from below the through hole 101, the sleeve 402 is inserted into the inner cavities of the rotating barrel one 201 and the rotating barrel two 40102, then the screw one 403 is inserted through the inner cavity of the sleeve 402, the nut 404 is screwed and tightened, the rotating barrel one 201, the rotating barrel two 40102 and the sleeve 402 are connected as a whole, and the positions of the screw one 403 and the nut 404 are adjusted to ensure that they abut against the upper and lower ends of the sleeve 402 respectively.

[0082] The first variable speed Hall sensor 501 and the second variable speed Hall sensor 502 are fixed on the corresponding positions of the PCB board 6 by reflow soldering or manual soldering, and it is ensured that the pins thereof are correctly connected with the circuit on the PCB board 6. Then, the single-chip microcomputer is installed on the PCB board 6, and the soldering operation is also performed, so that the single-chip microcomputer and other elements (such as capacitors, resistors, etc.) on the PCB board 6 constitute a complete circuit system. The PCB board 6 is installed in the specified position inside the half shell one 104 by the screw four 601, and it is ensured that it is fixed firmly.

[0083] A wire pipe hole can be reserved on the shell 1, one end of the wire pipe is inserted into the shell 1, the other end of the wire pipe is connected with a data connector, a data line is arranged in the wire pipe, and the data line electrically connects the PCB board 6 with the data connector.

[0084] The half shell two 105 is aligned with the half shell one 104, and the assembly of the shell 1 is completed by screwing the half shell two 105 with the half shell one 104 with the screw two 106. Finally, the shaft pin 107 is connected with the half pipe clamp 108 by penetrating the shaft pin hole at one end of the arc-shaped part 10501. When installed on the bicycle, the other end of the arc-shaped part 10501 is fastened with the half pipe clamp 108 by the screw three 109, so that the hand-operated gear shifting device can be installed on the handlebar of the electric bicycle, and the data connector is connected with the speed controller of the electric bicycle.

[0085] (Three) about the operation process

[0086] In the initial state, the magnet 3 is in the first position under the action of the torsional spring 7, and the supporting disc 401 abuts against the limiting part one 102. The first gear shifting hall sensor 501 and the second gear shifting hall sensor 502 are in the initial detection state, and they can detect the surrounding magnetic field strength in real time.

[0087] When specifically designed, the utility model can be designed as left finger shifting or right finger shifting, which respectively correspond to clockwise acceleration or counterclockwise acceleration. Taking the left finger shifting as an example, when the user needs to increase the speed for gear shifting, the user holds the shifting lever 2 with the hand and rotates it clockwise. The shifting lever 2 drives the rotating barrel one 201 to rotate clockwise in the through hole 101. Since the rotating barrel one 201, the sleeve 402 and the rotating barrel two 40102 are tightly connected as a whole by the screw one 403 and the nut 404, the rotating barrel two 40102 also rotates clockwise, thereby driving the supporting disc 401 to rotate. The supporting disc 401 drives the magnet 3 to move from the first position to the second position, and the magnetic field of the magnet 3 changes relative to the first gear shifting hall sensor 501 and the second gear shifting hall sensor 502. With the movement of the magnet 3, the two gear shifting hall sensors detect the change of the magnetic field strength in real time, and transmit the changed signal to the single-chip microcomputer on the PCB board 6. The single-chip microcomputer sends corresponding instructions to the speed controller of the electric bicycle, and the speed controller controls the motor to increase the output power according to the received instructions, thereby realizing the acceleration of the electric bicycle. In the acceleration process, with the increase of the rotation angle of the shifting lever 2, the magnet 3 gradually approaches the second position. When the other end of the supporting disc 401 abuts against the limiting part two 103, the magnet 3 reaches the second position, and at this time, a complete acceleration operation is completed.

[0088] When the user releases the shifting lever 2, the torsional spring 7 starts to recover the deformation under the action of its own elastic force, drives the supporting disc 401 to rotate reversely, and makes the magnet 3 move from the second position to the first position. When the magnet 3 returns to the first position and the supporting disc 401 abuts against the limiting part one 102 again, the whole gear shifting system returns to the initial state, and is ready for the next gear shifting operation.

[0089] In conclusion, the utility model discloses a unique design component makes the magnet can be under the drive of the lever stable movement, set up double variable speed hall sensor can accurately identify the magnet angle change, realize electric bicycle precision speed control, improve the control performance of electric bicycle.

[0090] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and the present application can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A manual shifter, comprising a housing (1) and a shift lever (2), characterized in that: The shell wall of the housing (1) is provided with a through hole (101), and the lever (2) is provided with a rotating barrel (201). The outer wall of the rotating barrel (201) is rotatably connected to the through hole (101). A magnet (3) is movably disposed inside the housing (1). The magnet (3) is connected to the rotating barrel (201) via a connecting component (4) so ​​that the lever (2) can drive the magnet (3) to move from the first position to the second position via the connecting component (4). A variable speed Hall sensor (5) is fixedly installed inside the housing (1). The variable speed Hall sensor (5) includes at least a first variable speed Hall sensor (501) and a second variable speed Hall sensor (502). The first variable speed Hall sensor (501) and the second variable speed Hall sensor (502) are arranged parallel to each other along the direction of movement of the magnet (3) so that the movement of the magnet (3) can be identified by the first variable speed Hall sensor (501) and the second variable speed Hall sensor (502) from different angles.

2. The manual shifter according to claim 1, characterized in that: The housing (1) is also provided with a PCB board (6), on which a microcontroller is provided. The first variable speed Hall sensor (501) and the second variable speed Hall sensor (502) are both electrically connected to the microcontroller.

3. The manual shifter according to claim 1, characterized in that: The connecting component (4) includes a support plate (401), a sleeve (402), a screw (403), and a nut (404). The support plate (401) is provided with a magnet cavity (40101) and a rotating barrel two (40102). The magnet (3) is embedded in the magnet cavity (40101). The outer wall of the rotating barrel two (40102) is rotatably connected to the through hole (101). The inner side of the through hole (101) is provided with a step (10101). The bottom of the rotating barrel two (40102) rests on the step (10101). The sleeve (402) passes through the inner cavity of the first rotating barrel (201) and the inner cavity of the second rotating barrel (40102). The screw (403) passes through the inner cavity of the sleeve (402) and is connected to the nut (404). The screw (403) and the nut (404) connect the sleeve (402), the first rotating barrel (201) and the second rotating barrel (40102) into a single unit that can rotate synchronously.

4. The manual shifter according to claim 3, characterized in that: The lower part of the outer wall of the rotating barrel 2 (40102) is rotatably connected to the through hole (101). A torsion spring (7) is sleeved on the upper part of the outer wall of the rotating barrel 2 (40102). One end of the torsion spring (7) is fixed to the support plate (401), and the other end of the torsion spring (7) is connected to the inner wall of the shell (1) so that the elastic force of the torsion spring (7) can drive the support plate (401) to drive the magnet (3) to move from the second position to the first position.

5. The manual shifter according to claim 4, characterized in that: The magnet (3) has a long arc shape. The support plate (401) also includes a fan-shaped part (40103) connected to the rotating barrel (40102). The magnet cavity (40101) is disposed in the fan-shaped part (40103). One end of the torsion spring (7) is fixed to the fan-shaped part (40103).

6. The manual shifter according to claim 5, characterized in that: The housing (1) is also provided with limiting member one (102) and / or limiting member two (103) inside; When the magnet (3) is in the first position, one end of the support plate (401) abuts against the limiting member (102); When the magnet (3) is in the second position, the other end of the support plate (401) abuts against the limiting member (103).

7. The manual shifter according to any one of claims 1 to 6, characterized in that: The shell (1) includes a first half-shell (104) and a second half-shell (105). The through hole (101) is provided in the first half-shell (104), and the first half-shell (104) is connected to the second half-shell (105) by the second screw (106).

8. The manual shifter according to claim 7, characterized in that: The second housing (105) is provided with an arc-shaped part (10501). One end of the arc-shaped part (10501) is rotatably connected to one end of the half-pipe clamp (108) through a shaft pin (107). The other end of the arc-shaped part (10501) is detachably connected to the other end of the half-pipe clamp (108) through a screw three (109).

9. The manual shifter according to claim 2, characterized in that: The PCB board (6) is detachably connected to the housing (1) by screw four (601).

10. An electric bicycle, characterized in that: The electric bicycle includes the manual shifter as described in any one of claims 1 to 9.

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