CN213677035U

CN213677035U - Bicycle intelligence helping hand wheel hub

Info

Publication number: CN213677035U
Application number: CN202022696840.XU
Authority: CN
Inventors: 杨勇跃; 刘达
Original assignee: Shenzhen Jinbaoguan Technology Co ltd
Current assignee: Shenzhen Jinbaoguan Technology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-13
Anticipated expiration: 2030-11-19

Abstract

The utility model provides an intelligent power-assisted wheel hub of a bicycle, which comprises a wheel hub shell, a motor arranged in the wheel hub shell and a wheel shaft connected with the motor; the hub shell is internally packaged with a microcontroller unit, a gyroscope sensor unit and a battery; wherein: the microcontroller unit is used for connecting and controlling the starting operation of the motor and controlling the output power of the motor; the gyroscope sensor unit is used for detecting the speed of the bicycle and providing a motor starting operation control signal for the microcontroller unit when the speed of the bicycle reaches a preset value; and the battery is used for providing working power supply for the motor, the microcontroller unit and the gyroscope sensor unit. Compared with the prior art, this bicycle intelligence helping hand wheel hub, when the bicycle speed of a motor reaches the default, gyroscope sensor unit provides the motor start operation control signal for microcontroller unit, and the motor provides the helping hand for riding, automatic start motor like this to can be according to road surface situation and load condition, automatic real-time adjustment motor output.

Description

Bicycle intelligence helping hand wheel hub

Technical Field

The utility model relates to a bicycle field, especially a bicycle intelligence helping hand wheel hub.

Background

Bicycles, also known as bicycles or bicycles, are typically two-wheeled small land vehicles. The existing bicycle is generally a manual bicycle or an electric bicycle which is manually pedaled. The manpower bicycle can generate tiredness after being ridden for a long time; however, the conventional electric bicycle generally controls the output power of the motor through a handlebar so as to ride, but the electric bicycle of the type has a complex structure and poor compatibility, and cannot adjust the output power in real time according to road conditions and loads.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a bicycle intelligence helping hand wheel hub, simple structure, automatic start control motor output provides the helping hand for riding.

The utility model adopts the technical proposal that:

an intelligent power-assisted hub of a bicycle comprises a hub shell, a motor arranged in the hub shell and a wheel shaft connected with the motor; the method is characterized in that: the hub shell is internally packaged with a microcontroller unit, a gyroscope sensor unit and a battery; wherein:

the microcontroller unit is used for connecting and controlling the starting operation of the motor and controlling the output power of the motor;

the gyroscope sensor unit is used for detecting the speed of the bicycle and providing a motor starting operation control signal for the microcontroller unit when the speed of the bicycle reaches a preset value;

and the battery is used for providing working power supply for the motor, the microcontroller unit and the gyroscope sensor unit.

Preferably, the gyro sensor unit can also be used for detecting the front and rear inclination angles of the bicycle and providing a motor output power adjusting signal for the microcontroller unit.

Preferably, the wheel shaft is in supporting connection with a rotor of the motor through a weighing piece, and the weighing piece is connected with the microcontroller unit to provide a bicycle load signal for the microcontroller unit.

Preferably, the gyro sensor unit employs a BMI160 type inertial measurement IC integrating an accelerometer and a gyroscope.

Preferably, the gyroscope sensor unit adopts an MIPU6050 type gyroscope.

Preferably, the microcontroller unit and the gyroscope sensor unit are arranged on an annular PCB, the PCB is fixed on a stator support of the motor, and each battery cell of the battery is annularly distributed in the stator support of the motor by taking a wheel axle as a center.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a bicycle intelligence helping hand wheel hub, after the bicycle changes from the quiescent condition to the driving state, when the bicycle speed reaches the default, gyroscope sensor unit provides the motor for microcontroller unit and starts the operation control signal, and the motor provides the helping hand for riding, and the automatic starting motor like this facilitates the rider to ride, and can be according to road surface situation and load condition, adjusts motor output in real time automatically, reduces the tiredness of rider; meanwhile, the whole structure is simple, and the transformation and the upgrade of the common automatic vehicle are convenient.

Drawings

Fig. 1 is a first schematic view of an intelligent power-assisted hub for a bicycle according to the present invention;

fig. 2 is a schematic view of a bicycle intelligent power-assisted hub provided by the present invention;

fig. 3 is an exploded view of the intelligent power-assisted hub of the bicycle according to the present invention;

fig. 4 is a cross-sectional view of an intelligent power-assisted hub for a bicycle provided by the present invention;

fig. 5 is a schematic view of a battery in an intelligent power-assisted hub of a bicycle according to the present invention;

fig. 6 is a circuit block diagram of an intelligent power-assisted hub for a bicycle provided by the present invention;

fig. 7 is a schematic circuit diagram of a microcontroller unit and a gyroscope sensor unit in an intelligent power-assisted hub of a bicycle provided by the present invention;

fig. 8 is a schematic circuit diagram of a gyroscope sensor unit according to another embodiment of the present invention in an intelligent power-assisted hub for a bicycle;

fig. 9 is a schematic diagram of a driving circuit of a motor in an intelligent power-assisted hub of a bicycle according to the present invention;

fig. 10, for the utility model provides a pair of the circuit schematic diagram of piece weighs among bicycle intelligence helping hand wheel hub.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 to 10 illustrate a preferred embodiment of an intelligent power-assisted hub for a bicycle according to the present invention. As shown in fig. 1 to 10, the intelligent power-assisted hub for bicycle comprises a hub shell 10, a motor 20 arranged in the hub shell, and an axle 30 connected with the motor; the hub shell 10 is internally provided with a microcontroller unit 40, a gyroscope sensor unit 50 and a battery 60 in a sealing way; wherein: the microcontroller unit 40 is used for connecting and controlling the starting operation of the motor and controlling the output power of the motor; the gyroscope sensor unit 50 is used for detecting the speed of the bicycle and providing a motor starting operation control signal for the microcontroller unit when the speed of the bicycle reaches a preset value; battery 60 for motor 20, microcontroller unit 40 and gyroscope sensor unit 50 provide working power supply, convert running state into by quiescent condition when the bicycle, when the bicycle speed reaches the default, gyroscope sensor unit 50 provides motor start operation control signal for microcontroller unit 40, and motor 20 starts and provides the helping hand for riding, and the self-starting motor conveniently rides passerby's ride like this, reduces passerby's fatigue.

The gyro sensor unit 50 can also be used to detect the front and rear inclination angles of the bicycle, provide a motor output power adjustment signal to the microcontroller unit, and depending on whether the road condition is an uphill slope or a downhill slope, the gyro sensor unit 40 provides a motor output power adjustment signal to the microcontroller unit, which adjusts the output power of the motor, e.g., when ascending a uphill slope, the microcontroller unit 40 adjusts the increased output power of the motor 20; when the vehicle is going downhill, the micro controller unit 40 adjusts the reduced output of the motor 20 or controls the motor to perform reverse electric energy recovery, so that the output power of the motor is adjusted in real time according to the road surface condition, which is simple and convenient.

The wheel shaft 30 is supported and connected with the rotor of the motor through the weighing sheet 70, the weighing sheet 70 is connected with the microcontroller unit 40, a bicycle load signal is provided for the microcontroller unit 40, when the bicycle is in a riding state, a rider rides on the bicycle, and when the bicycle is loaded, the weighing sheet 70 is deformed by the load and the weight of the rider, and the output power of the motor is adjusted according to the human body weight signal acquired by the weighing sheet 70 through the microcontroller unit 40. As shown in fig. 10, the resistance strain gauges R105 and R106 inside the weighing plate 70 are respectively disposed at two ends of the axle 30, and convert the mass signal into a measurable electrical signal to be output to the microcontroller unit 40 by using the principle that the resistance of the resistance strain gauge changes when the resistance strain gauge is deformed.

As shown in fig. 3 and 4, the microcontroller unit 40 and the gyroscope sensor unit 50 are disposed on an annular PCB board 80, the PCB board 80 is fixed on the stator support 21 of the motor 20, and the battery cells are annularly distributed in the stator support of the motor with the wheel axle as the center. The battery 60 is enclosed in a battery compartment 61, the battery compartment 61 being fitted over the stator support of the motor. Fig. 7 is a schematic circuit diagram of microcontroller unit 40 and gyro sensor unit 50, in which U4 is microcontroller unit 40, and microcontroller unit 40 uses an STM32F103C8T6 chip; the U11 cell is shown as a gyro sensor cell 50, where the gyro sensor cell 50 employs a BMI160 type inertial measurement IC integrating an accelerometer and a gyroscope. In a specific implementation, as shown in fig. 8, the gyro sensor unit 50 may use a MIPU6050 type gyro instead of a BMI160 type inertial measurement IC integrating an accelerometer and a gyroscope.

The hub shell 10 includes a hub body 11 and a hub cover 12 matched with the hub body 11, the microcontroller unit 40, the gyroscope sensor unit 50 and the battery 60 are packaged between the hub body 11 and the hub cover 12, and two ends of the wheel shaft 30 penetrate through the hub body 11 and the hub cover 12 respectively.

Alternatively, the motor 20 may be a permanent magnet motor that charges the battery 60 when traveling downhill.

The utility model also provides a control method of the intelligent power-assisted hub of the bicycle, which comprises a starting control method and a motor output control and adjustment method; in the starting control method, after the micro-controller unit 40 detects that the bicycle is changed from a static state to a running state according to the gyroscope sensor unit 50, the motor 20 is controlled to start and run, preset power is output, and assistance is provided for the running of the bicycle; in the motor output control and regulation method, the micro-controller unit 40 detects the front and rear inclination angles of the bicycle according to the gyroscope sensor unit 50 in the running process of the bicycle, and judges whether the bicycle is on an uphill slope or a downhill slope, and when the bicycle is judged to be on the uphill slope, the micro-controller unit 40 controls the output power of the motor to be increased to a preset matching value according to the uphill slope angle; when it is determined that the slope is downhill, the micro controller unit 40 controls the output power of the motor 20 to be reduced to a preset matching value according to the downhill angle.

As an embodiment, the gyro sensor unit 50 controls the motor 20 to start running after detecting that the bicycle is changed from a stationary state to a running state at a speed of 3 Km/h; the shutdown is delayed after the gyro sensor unit 50 detects a preset time after the bicycle changes from the running state to the stationary state.

And after the microcontroller unit controls the motor to start and operate, the motor continuously provides 10 N.m power assistance for the running of the bicycle in a non-uphill and downhill state.

To sum up, the technical scheme of the utility model can be fully effectual the above-mentioned utility model purpose of realization, just the utility model discloses a structure and functional principle all obtain abundant verification in the embodiment, can reach anticipated efficiency and purpose, do not deviating from the utility model discloses a under the prerequisite of principle and essence, can make multiple change or modification to the embodiment of utility model. Therefore, the present invention includes all the alternative contents within the scope mentioned in the claims, and all the equivalent changes made within the claims of the present invention are included in the claims of the present application.

Claims

1. An intelligent power-assisted hub of a bicycle comprises a hub shell, a motor arranged in the hub shell and a wheel shaft connected with the motor; the method is characterized in that: the hub shell is internally packaged with a microcontroller unit, a gyroscope sensor unit and a battery; wherein:

2. The bicycle intelligent power hub of claim 1, wherein: the gyroscope sensor unit can also be used for detecting the front and back inclination angles of the bicycle and providing a motor output power adjusting signal for the microcontroller unit.

3. The bicycle intelligent power hub of claim 1, wherein: the wheel shaft is connected with a rotor of the motor through a weighing piece in a supporting mode, and the weighing piece is connected with the microcontroller unit and provides a bicycle load signal for the microcontroller unit.

4. The bicycle intelligent power hub of claim 1, wherein: the gyro sensor unit employs a BMI160 type inertial measurement IC integrating an accelerometer and a gyroscope.

5. The bicycle intelligent power hub of claim 1, wherein: the gyroscope sensor unit adopts an MIPU6050 type gyroscope.

6. The bicycle intelligent power hub of claim 1, wherein: the microcontroller unit and the gyroscope sensor unit are arranged on an annular PCB, the PCB is fixed on a stator support of the motor, and each battery cell of the battery is annularly distributed in the stator support of the motor by taking a wheel shaft as a center.