Photovoltaic power supply magnetic control digital display type transmission

Abstract

The photovoltaic power supply magnetic control digital display type transmission comprises a transmission main body, a gear shifting driving structure and a speed changing rotating disc are rotationally arranged on the transmission main body, and the gear shifting driving structure controls the speed changing rotating disc to rotate in the gear-up direction or the gear-down direction through a transmission structure; the transmission main body is provided with a digital display screen and a magnetic coding structure electrically connected with the digital display screen, and the magnetic coding structure is used for capturing the rotating position of the variable-speed rotating disc and displaying the gear of the variable-speed rotating disc rotating to the corresponding position through the digital display screen; the transmission main body is provided with a photovoltaic power generation device which is used for converting light energy into electric energy and supplying power to the digital display screen and the sensing control assembly. The device is green and environment-friendly, a rider can quickly and accurately obtain gear information, the operation difficulty is low, the device is easy to master, and the riding safety is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bicycle gear shifters, in particular to a photovoltaic power supply magnetic control digital display type gear shifter. BACKGROUND

[0002] The existing patent with the announcement number CN209126907U discloses a bicycle gear position speed change switching device, which comprises a front frame, a handlebar is fixedly installed on the upper end of the front frame, an installation frame is arranged on the inner end of the handlebar, the installation frame is fixedly installed on the front frame, a plastic protective sleeve with a ring structure is arranged on the outer side of the handlebar, one end of the plastic protective sleeve is fixedly connected with the installation frame, the other end of the plastic protective sleeve is fixedly connected with the outer end of the handlebar, an installation groove is formed in the inner wall of the plastic protective sleeve, a brake handle is arranged in the plastic protective sleeve, one end of the brake handle is located in the installation groove and is rotationally connected with the plastic protective sleeve through a bolt, a brake wire is fixedly connected with one end of the brake handle, a controller is fixedly installed on one side in the installation frame, a liquid crystal display screen and a plurality of gear position buttons are arranged on the end face of the controller, the gear position buttons are located on one side of the liquid crystal display screen, the gear position buttons are electrically connected with the liquid crystal display screen, a small driving motor is fixedly installed in the middle of the installation frame, a PLC controller is fixedly installed on the outer side of the driving motor, a speed change controller is fixedly connected with the output end of the driving motor, the speed change controller is located on the other side in the installation frame, a speed change switching pull rope is fixedly connected with the outer side of the speed change controller, and a storage battery is fixedly installed on the upper end in the installation frame.

[0003] However, the bicycle gear position speed change switching device has the following disadvantages: the bicycle gear position speed change switching device provides power supply through a storage battery to realize power supply for the controller, the liquid crystal display screen and the PLC controller, the storage battery needs to be frequently charged, which is not convenient, and other existing technologies also adopt a dry battery power supply mode, the dry battery has the advantages that a spare battery can be carried to realize battery replacement and power supply, but the abandoned dry battery seriously pollutes the environment and is not environmentally friendly, and improvement is required. SUMMARY

[0004] The purpose of the present application is to provide a photovoltaic power supply magnetic control digital display type gear shifter, which has the effects of being green and environmentally friendly, enabling a rider to quickly and accurately obtain gear position information, being low in operation difficulty and facilitating operation, and improving riding safety.

[0005] The above technical purpose of the present application is realized through the following technical scheme: a photovoltaic power supply magnetic control digital display type gear shifter, comprising a gear shifter main body, a gear change driving structure and a speed change turntable are rotationally arranged on the gear shifter main body, the gear change driving structure and the speed change turntable are transmissionally connected through a transmission structure, the gear change driving structure controls the speed change turntable to rotate in a gear increasing direction or a gear decreasing direction through the transmission structure. The transmission body is provided with a digital display screen and a magnetic encoding structure electrically connected with the digital display screen, the magnetic encoding structure is used to capture the rotating position of the variable speed rotating disc, and the gear position of the variable speed rotating disc rotating to the corresponding position is displayed through the digital display screen. The transmission body is provided with a photovoltaic power generation device, which is used to convert light energy into electrical energy and power the digital display screen and the magnetic encoding structure. A brake handle is rotatably arranged on the transmission body, the brake handle is used to connect and pull the brake line to brake, and a brake signal trigger switch is arranged on the transmission body and connected with the brake handle.

[0006] By adopting the above technical scheme, the rider controls the variable speed rotating disc to rotate in the upshift direction or the downshift direction by the cooperation of the gear shifting driving structure and the transmission structure. When the variable speed rotating disc drives the magnetic element to rotate, the magnetic encoding structure can sense and detect the change of the rotating angle and position of the variable speed rotating disc, and the corresponding gear position of the variable speed rotating disc is displayed intuitively through the digital display screen, which is beneficial to the rider to quickly and accurately obtain the gear position information of the transmission. At the same time, the electronic gear position display mode enables the rider to directly confirm the gear position through the digital display screen, greatly reduces the experience requirement of beginners on the variable speed operation, is more beneficial to the beginners, reduces the safety accidents caused by the mismatch of gears due to frequent wrong gear shifting, and the photovoltaic power generation device is used to convert light energy into electrical energy to realize the power supply of the digital display screen and the sensing control component, solves the annoyance of frequent battery replacement or charging, reduces the pollution of waste batteries to the environment, is beneficial to environmental protection, and when the rider brakes, the brake handle presses the brake signal trigger switch to trigger the corresponding function on the bicycle to run, or cut off the power supply to improve the safety of the brake, has the effects of green environmental protection, quick and accurate gear position information acquisition, low operation difficulty, easy to use, and improved riding safety.

[0007] The further setting of the present application is that the photovoltaic power generation device includes a battery and a solar panel, the input end of the battery is electrically connected with the solar panel, and the output end of the battery is electrically connected with the digital display screen and the sensing control component.

[0008] By adopting the above technical scheme, the solar panel can receive ambient light and convert it into electrical energy stored in the battery, and the power supply of the digital display screen and the sensing control component can be realized through the battery during the riding process.

[0009] The further setting of the present application is that the transmission body includes an upper cover and a lower cover, the upper surface of the upper cover includes a top plane area and an inclined plane area, the solar panel is installed on the top plane area, and the digital display screen is installed on the inclined plane area and faces the direction of the head of the rider.

[0010] By adopting the technical scheme, the solar panel is installed on the top plane area of the upper cover, so that a larger light receiving area is ensured, the battery is quickly charged, and the digital screen arranged on the inclined surface is more conducive to the observation and real-time gear position acquisition of the rider.

[0011] Further, the magnetic coding structure comprises a magnetic element and a sensing control assembly, the magnetic element is arranged on the variable speed dial and rotates synchronously with the variable speed dial, the sensing control assembly is electrically connected with the digital screen, and the sensing control assembly is inductive cooperation with the magnetic element.

[0012] By adopting the technical scheme, when the variable speed dial drives the magnetic element to rotate, the sensing control assembly can inductively detect the rotation angle and position change of the magnetic element on the variable speed dial, and intuitively display the corresponding gear position of the variable speed dial through the digital screen.

[0013] Further, the variable speed dial comprises a wire disc base and a magnet mounting portion integrally connected to the wire disc base, an installation hole is arranged at the rotation center position of the magnet mounting portion, and the magnetic element is installed on the magnet mounting portion through the installation hole.

[0014] By adopting the technical scheme, when the wire disc base rotates, the magnetic element is driven to rotate through the magnet mounting portion, so that the sensing control assembly can detect and obtain the rotation position of the magnetic element, and the variable speed dial adopts the partition structure of the wire disc base and the magnet mounting portion, so that the variable speed wire is connected to the wire disc base, and the magnetic element is installed on the magnet mounting portion, thereby realizing functional partition and avoiding interference between the variable speed wire and the magnetic element when the variable speed wire is wound on the variable speed dial.

[0015] Further, the sensing control assembly comprises a control board and a magnetic sensor integrated on the control board, the magnetic sensor is in inductive cooperation with the magnetic element, and the magnetic sensor is arranged in the axial direction of the variable speed dial and is spaced apart from the magnetic element.

[0016] By adopting the technical scheme, the magnetic sensor is integrated on the control board, so that the installation stability of the magnetic sensor and the structural compactness of the whole transmission are improved.

[0017] The further arrangement of the present application is that the transmission structure comprises a gear shifting disc connected to the gear shifting disc, the gear shifting driving structure comprises a gear up driving assembly, a gear down driving assembly and a main reset torsion spring, the main reset torsion spring is connected between the gear shifting disc and the gear shifting body, and the main reset torsion spring has a tendency to drive the gear shifting disc to rotate in the gear down direction, the gear up driving assembly, the gear down driving assembly and the main reset torsion spring cooperate to drive the gear shifting disc to rotate in the gear up direction or the gear down direction.

[0018] By adopting the above technical scheme, when the gear up driving assembly is used to perform gear up operation on the gear shifting device, or the gear down driving assembly is used to perform gear down operation on the gear shifting device, the gear shifting disc drives the gear shifting disc to rotate in the corresponding gear up direction or gear down direction, thereby driving the magnetic element installed on the gear shifting disc to rotate in the corresponding direction, so that the sensing control assembly detects the rotating direction and position change of the magnetic element, and then displays the corresponding gear position through the digital display screen.

[0019] The further arrangement of the present application is that the gear up driving assembly comprises a gear up jaw and a gear up lever for driving the gear up jaw to rotate, a gear up lever reset torsion spring is arranged between the gear up lever and the gear shifting body, the gear shifting disc is provided with a gear up tooth portion in clutching cooperation with the gear up jaw, a gear up reset torsion spring is connected between the gear up jaw and the gear shifting body, and the gear up reset torsion spring has an elastic reset force for driving the gear up jaw to prevent the gear shifting disc from rotating in the gear down direction.

[0020] The further arrangement of the present application is that the gear down driving assembly comprises a gear down jaw and a gear down lever for driving the gear down jaw to rotate, a gear down lever reset torsion spring is arranged between the gear down lever and the gear shifting body, the gear shifting disc is provided with a gear down tooth portion in linkage with the gear down jaw, a gear down reset torsion spring is connected between the gear down jaw and the gear shifting body, and the gear down reset torsion spring always has an elastic driving force for driving the gear down jaw to mesh with the gear down tooth portion.

[0021] The further arrangement of the present application is that the gear shifting disc comprises a wire disc base and a magnet mounting portion integrally connected to the wire disc base, an avoiding gap is formed between the magnet mounting portion and the wire disc base, the gear up lever and the gear up jaw are rotatably installed on the gear shifting body through a gear up shaft, the gear shifting disc is rotatably connected to the gear shifting body through a main shaft, a limiting rod is connected between the main shaft and the gear up shaft, one end of the limiting rod is rotatably connected to the main shaft, the other end of the limiting rod is rotatably connected to the gear up shaft, and the end of the limiting rod connected to the main shaft is located in the avoiding gap.

[0022] By adopting the technical scheme, the limiting rod can accurately position the distance between the main shaft and the gear shifting shaft, prevent the gear shifting lever from driving the gear shifting shaft to deviate from the main shaft when rotating, and improve the operation stability and service life of the transmission.

[0023] In summary, the present application has the following advantages: The gear shifting driving structure and the gear shifting dial are arranged on the transmission main body, the gear shifting dial is rotationally connected to the gear shifting tooth disc at the bottom, the gear shifting dial and the gear shifting tooth disc are rotationally connected to the transmission main body through the main shaft, the gear shifting driving structure is transmissionally connected to the gear shifting dial through the gear shifting tooth disc, the rider controls the gear shifting dial to rotate in the gear increasing direction or the gear decreasing direction by the cooperation of the gear shifting driving structure and the gear shifting tooth disc, when the gear shifting dial drives the magnetic element to rotate, the sensing control assembly can sense and detect the rotation angle and position change of the magnetic element on the gear shifting dial, and the corresponding gear position of the gear shifting dial is directly displayed on the digital display screen, which is beneficial for the rider to quickly and accurately obtain the gear position information of the transmission, the electronic gear position display mode enables the rider to directly confirm the gear position through the digital display screen, greatly reduces the experience requirement of beginners for gear shifting operation, is more beneficial for beginners to use, reduces safety accidents caused by mismatched gears due to frequent incorrect gear shifting, in addition, the transmission converts light energy into electrical energy through the photovoltaic power generation device, thereby achieving power supply for the digital display screen and the sensing control assembly, solves the annoyance of frequent battery replacement or charging, reduces the pollution of waste batteries to the environment, is beneficial for environmental protection, and when the rider brakes, the brake handle presses the brake signal trigger switch, thereby triggering the corresponding function operation on the bicycle, or cutting off the power supply to improve the safety of the brake, has the effects of green environmental protection, quick and accurate gear position information acquisition, low operation difficulty, easy to use, and improved riding safety. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the overall structure diagram of the present application.

[0025] Figure 2 is the exploded view of the present application.

[0026] Figure 3 is the overall structure diagram of the present application. Figure 2 is the view from another perspective.

[0027] Figure 4 is the overall exploded view of the present application, and the lower cover is not shown.

[0028] Figure 5 is the view from another perspective. Figure 4 is the view from another perspective.

[0029] Figure 6 is the longitudinal sectional view of the present application. Figure 1 ​

[0030] Figure 7 This is the present invention. Figure 6 A magnified view of a portion of region A in the middle.

[0031] Figure 8 This is the circuit schematic diagram of the present invention.

[0032] In the diagram: 1. Gearbox body; 11. Upper cover; 1101. Battery mounting slot; 1102. Controller mounting slot; 111. Top flat area; 112. Sloping surface area; 12. Lower cover; 13. Upshift shaft; 14. Main shaft; 141. Anti-detachment part; 15. Limiting rod; 16. Brake signal trigger switch; 2. Gear shift turntable; 20. Clearance clearance; 21. Coil base; 22. Magnet mounting part; 221. Mounting hole; 23. Main return torsion spring; 24. Anti-rotation block; 3. Gear shifter; 30. Anti-rotation groove; 31. Upshift gear; 32. Downshift gear; 4. Digital display screen; 5. Magnetic coding structure; 51. Magnetic element; 52. Sensor control group Components; 521, Control board; 522, Magnetic sensor; 6, Photovoltaic power generation device; 61, Storage battery; 62, Solar panel; 7, Upshift drive assembly; 71, Upshift pawl; 710, Upshift reset torsion spring; 711, Locking pawl; 712, Stopping pawl; 713, Push block; 72, Upshift lever; 720, Upshift lever reset torsion spring; 721, Upshift rocker arm; 722, Downshift disc; 7221, Drive block; 8, Downshift drive assembly; 81, Downshift pawl; 810, Downshift reset torsion spring; 811, Downshift shaft; 82, Downshift lever; 820, Downshift lever reset torsion spring; 821, Downshift rocker arm; 822, Downshift disc; 9, Brake handle. Detailed Implementation

[0033] The invention will now be further described with reference to the accompanying drawings.

[0034] Photovoltaic-powered magnetically controlled digital display transmission, such as Figures 1-5 As shown, the transmission includes a main body 1, on which a shift drive structure and a shift turntable 2 are rotatably mounted. The shift drive structure and the shift turntable 2 are connected by a transmission structure, and the shift drive structure controls the shift turntable 2 to rotate in the upshift or downshift direction through the transmission structure. The main body 1 is equipped with a digital display screen 4 and a magnetic encoding structure 5 electrically connected to the digital display screen 4. The magnetic encoding structure 5 includes a magnetic element 51 and a sensing and control component 52. The magnetic element 51 is mounted on the shift turntable 2 and rotates synchronously with the shift turntable 2. The sensing and control component 52 is used to detect the rotation position of the magnetic element 51 and display the gear corresponding to the position of the shift turntable 2 on the digital display screen 4. The main body 1 is equipped with a photovoltaic power generation device 6, which is used to convert light energy into electrical energy and supply power to the digital display screen 4 and the sensing and control component 52.

[0035] As Figures 1-6 shown, the photovoltaic power generation device 6 includes a battery 61 and a solar panel 62, the input end of the battery 61 is electrically connected to the solar panel 62, the output end of the battery 61 is electrically connected to the digital display screen 4 and the sensing control assembly 52, the solar panel 62 can receive ambient light and convert it into electrical energy stored in the battery 61, and the battery 61 can supply power to the digital display screen 4 and the sensing control assembly 52 during cycling; the transmission main body 1 includes an upper cover 11 and a lower cover 12, the bottom of the upper cover 11 is provided with a battery mounting groove 1101 for mounting the battery 61, the upper surface of the upper cover 11 includes a top flat area 111 and a slope area 112, the included angle between the top flat area 111 and the slope area 112 is in the range of 100-220°, the solar panel 62 is installed on the top flat area 111 of the upper cover 11, and the digital display screen 4 is installed on the slope area 112 and faces the direction of the head of the cyclist, installing the solar panel 62 on the top flat area 111 of the upper cover 11 can ensure a larger light receiving area and realize rapid energy replenishment of the battery 61, and the digital display screen 4 arranged on the slope is more conducive to the cyclist to observe and obtain real-time gear position; in the embodiment, the shell of the transmission main body 1 is sealed and combined by the upper cover 11 and the lower cover 12, the digital display screen 4 is made of tempered glass material with scratch resistance and wear resistance, and the waterproof level of the transmission main body 1 is IPX6 or above, meeting the adaptability of extreme weather or road conditions.

[0036] As Figures 2-7 shown, the transmission dial 2 includes a wire disc base 21 and a magnet mounting portion 22 integrally connected to the wire disc base 21, the center of rotation of the magnet mounting portion 22 is provided with a mounting hole 221, and the magnetic element 51 is mounted on the magnet mounting portion 22 through the mounting hole 221, when the wire disc base 21 rotates, the magnetic element 51 is driven to rotate at the same time through the magnet mounting portion 22, which facilitates the sensing control assembly 52 to detect and obtain the rotation position of the magnetic element 51, and the transmission dial 2 adopts the partition structure of the wire disc base 21 and the magnet mounting portion 22, so that the transmission wire is connected to the wire disc base 21, and the magnetic element 51 is installed on the magnet mounting portion 22, realizing functional partitioning and avoiding interference between the transmission wire and the magnetic element 51 when the transmission wire is wound on the transmission dial 2; the sensing control assembly 52 includes a control board 521 and a magnetic sensor 522 integrated on the control board 521, the magnetic sensor 522 is inductive cooperation with the magnetic element 51, and the magnetic sensor 522 is arranged in the axial direction of the transmission dial 2 and is distributed in a spaced manner with the magnetic element 51, and the magnetic sensor 522 is integrally arranged on the control board 521, which can improve the installation stability of the magnetic sensor 522 and the structural compactness of the transmission as a whole, and the bottom of the upper cover 11 is provided with a controller mounting groove 1102 for mounting the control board 521, and in the embodiment, a circuit board electrically connected to the control board 521 is mounted on the back of the digital display screen 4.

[0037] As shown in Figures 2-5 and Figure 7 , the transmission structure includes a gear disc 3 mounted on the bottom of the shift disc 2, the bottom of the shift disc 2 is provided with a rotation stop block 24, the gear disc 3 is provided with a rotation stop groove 30 corresponding to the rotation stop block 24, the rotation stop block 24 and the rotation stop groove 30 are rotationally matched, so that the gear disc 3 is rotationally connected to the bottom of the shift disc 2, the gear shifting driving structure includes a gear up driving assembly 7, a gear down driving assembly 8 and a main reset torsion spring 23, the main reset torsion spring 23 is connected between the shift disc 2 and the transmission main body 1, and the main reset torsion spring 23 has a tendency to drive the gear disc 3 to rotate in the gear down direction, the gear up driving assembly 7 and the gear down driving assembly 8 are cooperated with the main reset torsion spring 23 to drive the shift disc 2 to rotate in the gear up direction or the gear down direction, when the transmission is operated in the gear up direction through the gear up driving assembly 7, or the transmission is operated in the gear down direction through the gear down driving assembly 8, the gear disc 3 drives the shift disc 2 to rotate in the corresponding gear up direction or the gear down direction, and then drives the magnetic element 51 mounted on the shift disc 2 to rotate in the corresponding direction, so that the sensing control assembly 52 detects the rotating direction and position change of the magnetic element 51, and then displays the corresponding gear position through the digital display screen 4; the gear up driving assembly 7 includes a gear up jaw 71 and a gear up lever 72 for driving the gear up jaw 71 to rotate, the gear up lever 72 and the transmission main body 1 are provided with a gear up lever reset torsion spring 720, the gear disc 3 is provided with a gear up tooth portion 31 in engagement with the gear up jaw 71, the gear up jaw 71 and the transmission main body 1 are connected with a gear up reset torsion spring 710, the gear up reset torsion spring 710 has an elastic reset force for preventing the gear disc 3 from rotating in the gear down direction; the gear down driving assembly 8 includes a gear down jaw 81 and a gear down lever 82 for driving the gear down jaw 81 to rotate, the gear down lever 82 and the transmission main body 1 are provided with a gear down lever reset torsion spring 820, the gear disc 3 is provided with a gear down tooth portion 32 in linkage with the gear down jaw 81, the gear down jaw 81 and the transmission main body 1 are connected with a gear down reset torsion spring 810, the gear down reset torsion spring 810 always has an elastic driving force for driving the gear down jaw 81 to engage with the gear down tooth portion 32; the main reset torsion spring 23 and the gear down reset torsion spring 810 in the embodiment are respectively arranged on the upper and lower sides of the lower housing 12, the gear up jaw 71 includes a locking ratchet portion 711 and a stop ratchet portion 712, the gear up lever 72 drives the gear up jaw 71 to rotate, so that the locking ratchet portion 711 rotates from the engaged position to the separated position relative to the gear up tooth portion 31, and at the same time, the stop ratchet portion 712 rotates from the stop position to the separated position relative to the gear up tooth portion 31.

[0038] As shown in Figures 4-5As shown, the upshift lever 72 comprises an upshift rocker arm 721 and an upshift disc part connected integrally, the upshift pawl 71 is provided with a push block 713, the upshift disc part is provided with a driving block 7221 corresponding to the push block 713, the driving block 7221 is in pushing cooperation with the push block 713, so as to drive the upshift pawl 71 to rotate, and make the upshift pawl 71 and the upshift ratchet on the variable speed gear disc 3 separate from each other; the downshift lever 82 comprises a downshift rocker arm 821 and a downshift disc part 822722 connected integrally, the downshift disc part 822722 is rotatably connected to the transmission main body 1 through the main shaft 14, and the downshift reset torsional spring 810 always has a movement trend of driving the downshift pawl 81 to mesh with the downshift ratchet.

[0039] As shown in the figure, Figures 1-7 The magnet mounting part 22 and the wire coil base 21 form an avoiding gap 20, the upshift lever 72 and the upshift pawl 71 are rotatably mounted on the transmission main body 1 through the upshift shaft 13, the variable speed rotating disc 2 is rotatably connected to the transmission main body 1 through the main shaft 14, the main shaft 14 and the upshift shaft 13 are connected with a limiting rod 15, one end of the limiting rod 15 is rotatably connected to the main shaft 14, the other end of the limiting rod 15 is rotatably connected to the upshift shaft 13, and the one end of the limiting rod 15 connected to the main shaft is located in the avoiding gap 20, the limiting rod 15 can accurately position the distance between the main shaft 14 and the upshift shaft 13, prevent the upshift lever 72 from driving the upshift shaft 13 to deviate from the main shaft 14 when rotating, and improve the operation stability and service life of the transmission; the downshift lever 82 is rotatably connected to the transmission main body 1 through the main shaft 14, the downshift pawl 81 is rotatably connected to the downshift lever 82 through the downshift shaft 811, and the downshift shaft 811 is eccentrically arranged with the main shaft 14, the downshift lever 82 is pressed to rotate relative to the main shaft 14, the downshift shaft 811 on the downshift lever 82 drives the downshift pawl 81 to rotate in the same direction relative to the main shaft 14, and the downshift reset torsional spring 810 always drives the downshift pawl 81 to mesh with the downshift tooth part 32 on the variable speed gear disc 3 in this process, the downshift pawl 81 rotates around the downshift shaft 811 and drives the variable speed gear disc 3 to rotate in the downshift direction, and the upper end of the main shaft 14 extends radially outward to form an anti-disengagement part 141 in this embodiment, the anti-disengagement part 141 is placed in the avoiding gap 20, and when the main shaft 14 is installed in the shaft hole of the variable speed rotating disc 2, the anti-disengagement part 141 is in anti-disengagement cooperation with the limiting rod 15, so as to prevent the one end of the limiting rod 15 from disengaging from the avoiding gap 20.

[0040] As shown in the figure, Figure 8As shown, the power supply circuit includes chip DW01A and linear voltage regulator U3, chip DW01A protects the normal charging and discharging of the battery 61, linear voltage regulator U3 stabilizes the input voltage to 3.3V voltage output; the power supply circuit is provided with ports P2, P3, port P2 is connected with the battery 61, port P3 is connected with the solar panel 62, pin 2 of port P3 is connected with the grounding point of the circuit, pin 1 of port P3 is connected with diode D1, resistor R3 and pin 1 of port P2 in turn, the current input by the solar panel 62 is converted to one-way charging for the battery 61, at the same time, linear voltage regulator U3 converts the input voltage to stable 3.3V voltage output, the battery 61 in the embodiment is preferably a lithium battery, linear voltage regulator U3 adopts low dropout linear voltage regulator of model HT7533, in other embodiments, other models of linear voltage regulators with the same function can be used instead; pin 1 of chip DW01A is an OD output pin for discharging control, pin 1 of chip DW01A is connected with the gate of N-MOS tube Q1, pin 3 of chip DW01A is an OC output pin for charging control, pin 3 of chip DW01A is connected with the gate of N-MOS tube Q2, N-MOS tube Q1 and N-MOS tube Q2 are connected in turn, the source of N-MOS tube Q1 is connected with pin 2 of port P2, i.e. connected with the negative electrode of the battery 61, the source of N-MOS tube Q2 is connected with the grounding point, pin 2 of chip DW01A is a CSI input pin for charging detection, pin 2 of chip DW01A is connected with resistor R12 and then connected between the source of N-MOS tube Q2 and the grounding point to detect the charging state of the battery 61, pin 5 of chip DW01A is a VDD positive electrode pin, pin 6 of chip DW01A is a VSS negative electrode pin, pin 5 and pin 6 of chip DW01A are connected with capacitor C7 in parallel, at the same time, pin 5 of chip DW01A is connected with resistor R11 and then connected with pin 1 of port P2, i.e. connected with the positive electrode of the battery 61, for charging and discharging of the battery 61, to avoid overcharging, overdischarging, overcurrent, etc.; when the input voltage on pin 5 of chip DW01A is between 2.5V-4.3V, pin 1 and pin 3 of chip DW01A output high level, the input voltage of pin 2 is 0, at this time, two N-MOS tubes Q1 and Q2 are in conducting state, the grounding point is communicated with the negative electrode of the battery 61, the positive and negative electrodes of the battery 61 are in conducting state, the battery 61 normally discharges in the power supply circuit, the input voltage is input to the input end of linear voltage regulator U3, the output end of linear voltage regulator U3 outputs stable 3.3V direct current voltage; the battery 61 continuously discharges on linear voltage regulator U3 to output electric energy, the voltage gradually decreases, the input voltage on pin 5 of chip DW01A, when the input voltage decreases to 2.3V, the pin 1 of the chip DW01A outputs 0 voltage, the N-MOS tube Q1 is cut off, the positive and negative poles of the battery 61 are disconnected, the battery 61 stops discharging, over-discharge protection is performed, the pin 1 outputs high voltage again after the voltage of the battery 61 rises to the normal value, the N-MOS tube Q1 is turned on; when the current converted by the solar panel 62 is input for charging, the pin 3 of the chip DW01A keeps outputting high voltage, the N-MOS tube Q2 is turned on, the grounding point is connected with the negative pole of the battery 61, and the battery 61 is charged; when the voltage of the battery 61 exceeds 4.4V due to charging, the pin 3 of the chip DW01A outputs 0 voltage, the N-MOS tube Q2 is cut off, and over-charging protection is performed; when the battery 61 is in a discharging state, the input voltage of the pin 2 of the chip DW01A is greater than the over-discharge protection voltage value, the pin 1 of the chip DW01A outputs 0 voltage, the N-MOS tube Q1 is cut off, discharging is stopped, and over-current protection is performed; when the battery 61 is in a charging process, the input voltage of the pin 2 of the chip DW01A is lower than the over-charging protection voltage value, the pin 3 of the chip DW01A outputs 0 voltage, the N-MOS tube Q2 is cut off, and over-current protection is performed; the solar panel 62 and the power supply circuit convert sunlight into electric energy and output stable voltage to supply power to the digital display panel 106, even in the shade or under the tree, the scattered light can slowly charge, and the continuous endurance of “riding to supply power” is realized.

[0041] The speed change principle of the transmission is as follows: in the initial position state, the upshift reset torsion spring 710 drives the locking pawl part 711 of the upshift jaw 71 to mesh with the upshift tooth part 31 of the speed change tooth disc 3 to stop rotation, the downshift reset torsion spring 810 drives the downshift jaw 81 to mesh with the downshift tooth part 32 of the speed change tooth disc 3 to stop rotation, when upshift is needed, the upshift lever 72 is pulled to drive the upshift jaw 71 to rotate, so that the locking pawl part 711 is separated from the upshift tooth part 31 of the speed change tooth disc 3, the main reset torsion spring 23 drives the speed change rotating disc 2 to drive the speed change tooth disc 3 to rotate in the upshift direction, the downshift jaw 81 and the downshift tooth part 32 are guided by the guide inclined surface between them, the elastic force of the upshift reset torsion spring 710 is overcome, and the downshift jaw 81 is driven to rotate in the direction away from the downshift tooth part 32 of the upshift shaft 13, so that the downshift jaw 81 and the downshift tooth part 32 are separated from each other, upshift operation is realized, when the upshift is one level, the upshift tooth part 31 corresponding to a higher level is stopped by the stop pawl part 712 rotated to the stop position, to prevent the speed change tooth disc 3 from rotating to the next level in the upshift direction, at this time, the pulling force on the upshift lever 72 is removed, the upshift lever reset torsion spring 720 drives the upshift lever 72 to reset, the upshift reset torsion spring 710 drives the upshift jaw 71 to reset, and the downshift reset torsion spring 810 drives the downshift jaw 81 to reset, so that the locking pawl part 711 and the stop pawl part 712 are reset to the initial position state, to realize the locking positioning of the speed change tooth disc 3; when downshift is needed, the downshift lever 82 is pushed to drive the downshift jaw 81 to rotate relative to the main shaft 14, the downshift torsion spring drives the downshift jaw 81 to rotate relative to the downshift shaft 811, so that the downshift jaw 81 abuts against the downshift tooth part 32 of the speed change tooth disc 3, to drive the speed change tooth disc 3 to drive the speed change rotating disc 2 to rotate in the downshift direction, the main reset torsion spring 23 is gradually compressed during the downshift process, and the pushing force of the downshift lever 82 on the speed change tooth disc 3 is greater than the elastic force of the upshift reset torsion spring 710, so that the speed change tooth disc 3 can drive the upshift jaw 71 to rotate to the avoidance state, to realize downshift operation.

[0042] The basic working principle of the present application is that the gear shifting driving structure and the gear shifting disc 2 are rotationally arranged on the transmission main body 1, the gear shifting disc 2 is rotationally connected to the gear shifting tooth disc 3 at the bottom, the gear shifting disc 2 and the gear shifting tooth disc 3 are rotationally connected to the transmission main body 1 through the main shaft 14, the gear shifting driving structure is in transmission connection with the gear shifting disc 2 through the gear shifting tooth disc 3, the rider controls the gear shifting disc 2 to rotate in the upshift direction or the downshift direction by the coordinated action of the gear shifting driving structure and the transmission tooth disc, when the gear shifting disc 2 drives the magnetic element 51 to rotate, the sensing control assembly 52 can sense and detect the rotation angle and position change of the magnetic element 51 on the gear shifting disc 2, and the corresponding gear position of the gear shifting disc 2 is directly displayed on the digital display screen 4, which is beneficial to the rider to quickly and accurately obtain the gear position information of the transmission, and the electronic gear position display mode enables the rider to directly confirm the gear position through the digital display screen 4, greatly reduces the experience requirement of the rider on the gear shifting operation, is more beneficial to the rider to get started, reduces the safety accidents caused by the mismatch of the gear position due to frequent wrong gear shifting, in addition, the transmission utilizes the photovoltaic power generation device 6 to convert light energy into electric energy, thereby realizing the power supply to the digital display screen 4 and the sensing control assembly 52, solving the annoyance of frequent battery replacement or charging, and also reducing the pollution of waste batteries to the environment, being beneficial to environmental protection, and in addition, when the rider brakes, the brake handle 9 will press the brake signal trigger switch 16, thereby triggering the corresponding function operation on the bicycle, or cutting off the power supply to improve the safety of the brake, having the effects of green environmental protection, the rider being able to quickly and accurately obtain the gear position information, low operation difficulty being beneficial to the rider to get started, and improving the riding safety.

[0043] The above description is only the preferred embodiment of the present application, and equivalent changes or modifications made according to the structure, features and principles described in the patent application scope of the present application are included in the patent application scope of the present application.

Claims

1. A photovoltaic-powered magnetically controlled digital display transmission, comprising a transmission body (1), characterized in that: The main body (1) of the transmission is rotatably provided with a gear shift drive structure and a gear shift turntable (2). The gear shift drive structure and the gear shift turntable (2) are connected by a transmission structure. The gear shift drive structure controls the gear shift turntable (2) to rotate in the upshift or downshift direction through the transmission structure. The main body (1) of the transmission is provided with a digital display screen (4) and a magnetic coding structure (5) electrically connected to the digital display screen (4). The magnetic coding structure (5) is used to capture the rotation position of the gear shift turntable (2) and display the gear position of the gear shift turntable (2) when it rotates to the corresponding position through the digital display screen (4). The main body (1) of the transmission is provided with a photovoltaic power generation device (6), which is used to convert light energy into electrical energy and supply power to the digital display screen (4) and the magnetic coding structure (5); The transmission body (1) is rotatably provided with a brake handle (9), which is used to connect and pull the brake cable to brake. The transmission body (1) is provided with a brake signal trigger switch (16) that is linked to the brake handle (9).

2. The photovoltaic-powered magnetically controlled digital display transmission according to claim 1, characterized in that: The photovoltaic power generation device (6) includes a storage battery (61) and a solar panel (62). The input end of the storage battery (61) is electrically connected to the solar panel (62), and the output end of the storage battery (61) is electrically connected to the digital display screen (4) and the sensing and control component (52).

3. The photovoltaic-powered magnetically controlled digital display transmission according to claim 2, characterized in that: The transmission body (1) includes an upper cover (11) and a lower cover (12). The upper surface of the upper cover (11) includes a top planar area (111) and a ramp area (112). The solar panel (62) is installed on the top planar area (111), and the digital display screen (4) is installed on the ramp area (112) and faces the direction of the rider's head.

4. The photovoltaic-powered magnetically controlled digital display transmission according to claim 1, characterized in that: The magnetic encoding structure (5) includes a magnetic element (51) and a sensing control component (52). The magnetic element (51) is disposed on the speed-changing turntable (2) and rotates synchronously with the speed-changing turntable (2). The sensing control component (52) is electrically connected to the digital display screen (4), and the sensing control component (52) and the magnetic element (51) are inductively coordinated.

5. The photovoltaic-powered magnetically controlled digital display transmission according to claim 4, characterized in that: The variable speed turntable (2) includes a coil base (21) and a magnet mounting part (22) integrally connected to the coil base (21). The magnet mounting part (22) has a mounting hole (221) at the rotation center position, and the magnetic element (51) is mounted on the magnet mounting part (22) through the mounting hole (221).

6. The photovoltaic-powered magnetically controlled digital display transmission according to any one of claims 4 or 5, characterized in that: The sensing and control assembly (52) includes a control board (521) and a magnetic sensor (522) integrated on the control board (521). The magnetic sensor (522) is inductively coupled with the magnetic element (51), and the magnetic sensor (522) is arranged in the axial direction of the speed change turntable (2) and is spaced apart from the magnetic element (51).

7. The photovoltaic-powered magnetically controlled digital display transmission according to claim 1, characterized in that: The transmission structure includes a geared disc (3) connected to the gearbox (2) with an anti-rotation connection. The gear shifting drive structure includes an upshift drive assembly (7), a downshift drive assembly (8), and a main return torsion spring (23). The main return torsion spring (23) is connected between the gearbox (2) and the transmission body (1), and the main return torsion spring (23) has a tendency to drive the geared disc (3) to rotate in the downshifting direction. The upshift drive assembly (7), the downshift drive assembly (8), and the main return torsion spring (23) cooperate to drive the gearbox (2) to rotate in the upshifting or downshifting direction.

8. The photovoltaic-powered magnetically controlled digital display transmission according to claim 7, characterized in that: The upshift drive assembly (7) includes an upshift pawl (71) and an upshift lever (72) that drives the upshift pawl (71) to rotate. An upshift lever return torsion spring (720) is provided between the upshift lever (72) and the transmission body (1). The transmission gear (3) is provided with upshift teeth (31) that engage with the upshift pawl (71). An upshift return torsion spring (710) is connected between the upshift pawl (71) and the transmission body (1). The upshift return torsion spring (710) has an elastic return force that drives the upshift pawl (71) to prevent the transmission gear (3) from rotating in the downshift direction.

9. The photovoltaic-powered magnetically controlled digital display transmission according to claim 7, characterized in that: The downshift drive assembly (8) includes a downshift pawl (81) and a downshift lever (82) that drives the downshift pawl (81) to rotate. A downshift lever return torsion spring (820) is provided between the downshift lever (82) and the transmission body (1). The gearbox (3) is provided with a downshift tooth (32) that is linked to the downshift pawl (81). A downshift return torsion spring (810) is connected between the downshift pawl (81) and the transmission body (1). The downshift return torsion spring (810) always has an elastic driving force that drives the downshift pawl (81) and the downshift tooth (32) to mesh with each other.

10. The photovoltaic-powered magnetically controlled digital display transmission according to claim 8, characterized in that: The gear shift turntable (2) includes a coil base (21) and a magnet mounting part (22) integrally connected to the coil base (21). A clearance gap (20) is formed between the magnet mounting part (22) and the coil base (21). The shift lever (72) and the shift pawl (71) are rotatably mounted on the transmission body (1) via the shift shaft (13). The gear shift turntable (2) is rotatably connected to the transmission body (1) via the main shaft (14). A limit rod (15) is connected between the main shaft (14) and the shift shaft (13). One end of the limit rod (15) is rotatably connected to the main shaft (14), and the other end of the limit rod (15) is rotatably connected to the shift shaft (13). The end of the limit rod (15) connected to the main shaft is located within the clearance gap (20).

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