CN2303787Y

CN2303787Y - Electric boosted effort-saved bicycle

Info

Publication number: CN2303787Y
Application number: CN97201087U
Authority: CN
Inventors: 刘越生; 刘宏才; 白尔清; 林克真; 孔启忠; 施东成; 叶煦琳
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-31
Filing date: 1997-01-31
Publication date: 1999-01-13
Anticipated expiration: 2007-01-31

Abstract

The utility model relates to an electric boosted effort-saved bicycle, which is composed of a bicycle body, an electric boosted device, a speed detection system, a control system and a speed selector. A direct-current motor with a small chain wheel can drive a chain wheel with a flywheel on a back shaft through a chain; when a rider pedals a big chain wheel with a flywheel on a middle shaft, the big chain wheel can also drive another chain wheel with a flywheel on the back shaft through a chain; the two chain wheels can simultaneously drive a back wheel to rotate. The run of the motor is controlled according to the real-time speed obtained by the speed detection system. When the rider does not pedal, or the pedaling force is small, the bicycle speed is less than 2 km/h; or when the speed for riding is higher and reaches to 20 km/h, the motor can stop running, and the safety for riding can be ensured.

Description

Electric boosted labour-saving bicycle

The utility model relates to a kind of labour-saving bicycle that electric booster is arranged.

All boosted vehicles all are the motor mopeds with pedal and motor-driven two kinds of functions at present.When power assist, the rider can not pedal, and bicycle has become self-propelled vehicle in fact, therefore uses to be restricted.

The purpose of this utility model is to provide a kind of to be had only pedal and not to have the non-power-driven vehicle of motor-driven function, a kind of real labour-saving bicycle, but not motor moped.

The utility model by the mountain bike car body, place appropriate location on the car body electric booster, be located at speed detection system and the control system on axis and the rear axle and five parts such as velocity selector that are located on the handlebar are formed, said electric booster comprises that minor sprocket, the chain on battery, DC machine, the direct current (DC) arbor reaches the sprocket wheel by a band flywheel on the rear axle of its transmission, the sprocket wheel of another band flywheel on the rear axle of hinge wheel, chain and the transmission thereof of the band flywheel that links to each other with a pedal crank on the axis.The hinge wheel of band flywheel is and a pedal crank or welding or assembling all-in-one-piece on the said axis.

Be further described below in conjunction with embodiment and accompanying drawing.

Fig. 1 is the utility model structural representation.Wherein used mountain bike car body (6) need not changed; only in position go up additional body (17) and protective case (18), DC machine (1), speed detection system (3), control system (4) and battery (5) that support (17) will have minor sprocket (2) all are fixed on the car body.DC machine (1) is by the sprocket wheel (15) of band flywheel on chain (16) the transmission rear axle, and protective case (18) covers assurance safety with chain (16).Manpower is pedaled the sprocket wheel (13) of the hinge wheel (9) of the band flywheel (8) on the axis by another band flywheel on chain (12) the transmission rear axle, and both make rear wheel rotate simultaneously, have the motor power-assisted to make the bicyclist easily laborsaving like this.

On axis and rear axle, be equipped with and test the speed with disk (11) and (14), the speed signal input speed checking system (3) that records by Hall sensor (10), treatedly obtain the operation that input control system (4) behind the real-time speed is controlled motor, make bicycle in the power-assisted not of motor under the situation that the bicyclist is not pedaled or under the bicycle speed condition with higher, guarantee that the utility model really is the labour-saving bicycle unpowered vehicle.Velocity selector on the handlebar (7) is used for regulating the motor running velocity.

The principle of work of Fig. 2 and 3 explanation speed detection systems and control system.(1) is DC machine among Fig. 2, (2) be control system, (3) be checking system, (A) be solid switch, (B) be battery for power supply, after the Hall sensor in the speed detection system recorded the real-time speed of bicycle middle shaft and rear axle, the signal process was handled the vdc by system outlet 0-15 volt, thereby controlled the operation of motor by solid switch (A).

More than the concrete function of two systems as follows: 1, reach certain value when pedal power, when bicycle speed per hour reached 2 kilometers, control system (4) was connected solid switch (A), and power supply also is that battery (5) starts motor (1).When 2, bicycle speed is in 2 to 15 kilometer range per hour, the motor power-assisted, when riding laborsaving half.3, bicycle speed is greater than per hour 15 kilometers the time, and the motor power-assisted begins to reduce, when speed greater than per hour 20 kilometers the time, control system (4) is opened floatless switch (A), motor shuts down.4, bicyclist's pedal power is very little, and bicycle speed is less than per hour 2 kilometers, or the bicyclist is when stopping to pedal, and motor also shuts down.

Fig. 4 is the structural relation figure of pedal crank and flywheel.Flywheel (8) on the hinge wheel (9) is and pedal crank (20) or welding or assembling all-in-one-piece, flywheel (8) and hinge wheel (9) during nut (19) locking pedal crank (20)) just fixing thereupon.

The power consumption of the utility model labour-saving bicycle is few, uses 12 to 36 volts, the battery of 11 to 30 ampere-hours, but power be not more than 100 watts, per minute be not higher than 500 to 1500 change, electric current is about 8 amperes DC machine power-assisted and rides 50 to 200 kilometers.But the light safety of riding does not have waste gas and noise emission again, meets the requirement of green engineering.

Claims

1, a kind of electric boosted labour-saving bicycle, by the mountain bike car body, place electric booster on the car body, be located at speed detection system and the control system on axis and the rear axle and five parts such as velocity selector of being located on the handlebar are formed, feature of the present utility model is that described electric booster comprises that minor sprocket, chain on battery, DC machine, the direct current (DC) arbor reach the sprocket wheel by a band flywheel on the rear axle of its transmission, and the hinge wheel of the band flywheel that links to each other with a pedal crank on the axis, chain reach the sprocket wheel by another band flywheel on its transmission rear axle.

2, electric boosted labour-saving bicycle according to claim 1, the hinge wheel that it is characterized in that band flywheel on the said axis are and a pedal crank or welding or assembling all-in-one-piece.