CN2687002Y

CN2687002Y - Electric boosting device for bicycle and electric bicycle mounted therewith

Info

Publication number: CN2687002Y
Application number: CN 200320104971
Authority: CN
Inventors: 保政; 保希杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-22
Filing date: 2003-10-22
Publication date: 2005-03-23
Anticipated expiration: 2013-10-22

Abstract

The utility model relates to an electric bicycle with a bicycle electric auxiliary force device. The utility model has the characteristics of simple structure and easy installation and comprises a motor, a battery, a chain and a fly wheel, wherein an output shaft of the motor is provided with a driving wheel which is connected with the driving fly wheel by a transmission chain, a wheel hub of the driving fly wheel is provided with a screw thread which is matched with a bicycle back shaft, a controller and the battery are arranged in a battery box, a conducting wire A, a conducting wire B and a conducting wire C on the motor can be respectively connected with a loudspeaker, an illuminating lamp and a braking handle, a conducting wire D connects the motor and the controller, the motor is fixed behind a bicycle frame and is connected with the driving fly wheel fixed on the bicycle back shaft by a transmission shaft chain, and the battery box can be fixed on the bicycle frame or a back article rack. The utility model not only is suitable for refitting existing bicycles, but also can be used for being matched with electric bicycles with bicycle factories.

Description

Bicycle electric work-saving device and the Electrical Bicycle of this device is installed

Technical field:

The utility model relates to the Electrical Bicycle technical field, and exactly it is a kind of bicycle electric work-saving device and the Electrical Bicycle that this device is installed.

Background technology:

Bicycle is China worker's a main running vehicle, though cheap, ride easily, long-distance running, it is bigger to consume one's strength, and motor bike and fuel bicycle be because contaminated environment, the granting car plate is under an embargo in a lot of big cities.For both laborsaving, free from environmental pollution again, a lot of people have selected Electrical Bicycle.Electrical Bicycle is the new in recent years product that rises, and this bicycle adopts storage battery as propulsion source, travels by the DC machine drive wheels, has both saved muscle power, does not resemble contaminated environment the motor bike again, so be subjected to user's welcome.But some families have had several bicycles, in case purchase new Electrical Bicycle, original bicycle just becomes idle product, thereby some customers wish to repack existing bicycle into Electrical Bicycle.Kind, the kind of existing Electrical Bicycle are more, but structure is complicated mostly, and efficient is lower, the early stage DX-130 type Electrical Bicycle that has Shanghai No.2 Bicycle Works to produce, owing to adopt the permanent-magnet disk DC machine, noise is bigger, and efficient only is 60%, and the design life of motor is 400 hours, practical life were generally about 300 hours, thereby greatly reduce the service life of car load, and do not allow overload, need by the manpower power-assist during climbing.Otherwise just may burn motor.The motor of this class Electrical Bicycle and storage battery are installed in the vehicle frame middle part together, have therefore taken more available space.China Patent No.: 88216503.8 disclose the utility model patent that a kind of name is called " wheel hub driving type Electrical Bicycle ", it is that the axle center of DC machine as back wheels of vehicle is fixed on the chain stay of vehicle frame, wheel hub by bearing installation on the shell of DC machine, in the reducer gear and the engagement of the inner gear on the wheel hub of dc motor shaft one end device, the tire of trailing wheel, rim are connected with wheel hub by spoke.China Patent No.: 88216232.2 disclose the utility model patent of a kind of " device of ordinary bicycle repacking Electrical Bicycle ", the rotating speed of this bicycle riding people power-control motor to pedal, contain ratchet device in this device, install comparatively complicated during repacking.Electrical machinery of Japanese sanyo Co., Ltd. had applied for once that a kind of name was called the patent of invention of " Electrical Bicycle ", and it is that the power that motor is exported is passed to trailing wheel after slowing down, and installed comparatively complicated.Sanyo Electric Co., Ltd had applied for once also that a kind of name was called " front wheel driven electric bicycle ", the patent of invention of application number 01119960.1, and it adopts the before driving mode, and structure is more complicated still.

Summary of the invention:

The purpose of this utility model provides a kind of bicycle electric work-saving device and the Electrical Bicycle of this device is installed, this work-saving device is relatively simple for structure, cost is lower, reliable in quality, be convenient to install, not only can reequip existing bicycle easily, but also the directly production of Electrical Bicycle.It comprises motor, battery, chain and flywheel, it is characterized in that: driving wheel (2) is housed on the output shaft of motor (1), be connected with driving flywheel (6) by driving chain (3), on the wheel hub (7) of driving flywheel (6) screw thread that matches with the car rear axle is arranged, controller (8) is housed in the battery case (5), and battery (4) is contained in the battery case (5).Lead A, B on the motor (1), C can connect loudspeaker respectively, illuminating lamp and brake handgrip, and lead D couples together motor (1) and controller (8).Motor (1) is fixed on vehicle frame (9) rear, couples together by transmission shaft chain (3) and the driving flywheel (6) that is fixed on the rear axle, and battery case (5) can be fixed on vehicle frame (9) and go up or be fixed on the rear bracket (10).

The utility model has the advantages that: simple in structure, install easily, be particularly suitable for reequiping existing bicycle and manual tricycle, and also can be supporting with Bicycle Plant, directly produce Electrical Bicycle.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is for installing the scheme drawing of the Electrical Bicycle of work-saving device in the utility model.

The specific embodiment:

Embodiment 1:

Motor in the utility model and battery are outsourcing piece, and driving flywheel can order, and gets all the parts shown in the accompanying drawing ready, and assembling gets final product with reference to accompanying drawing.The existing bicycle of repacking can be fixed on motor on the vehicle frame at vehicle seat rear, if should removing the band-type brake dish, the band-type brake car changes rim brake into, to drive flywheel is screwed on the rear axle by wheel hub, driving chain is enclosed within the motor driving wheel and drives on the flywheel, power lead and battery and illuminating lamp, brake handle, handle, switch, charger etc. are connected.During use, turn on the power switch, rotate handle, motor rotates, and drives by driving chain and drives the flywheel rotation, rotates thereby drive trailing wheel.Can automatically cut off the power supply when braking midway, be convenient to manpower and electric boostedly alternately ride, be beneficial to economize on electricity.Because have charge port on the controller, battery can charge onboard, also can take off charging.

Embodiment 2:

Basic identical with the structure of embodiment 1, only this work-saving device is installed on the manual tricycle, motor is installed in the rear of three-wheel vehicle, is connected with driving flywheel on being installed in rear axle by driving chain, and occupation mode is with embodiment 1.

Claims

1, bicycle electric work-saving device, it comprises motor, battery, chain and flywheel, it is characterized in that: driving wheel (2) is housed on the output shaft of motor (1), be connected with driving flywheel (6) by driving chain (3), on the wheel hub (7) of driving flywheel (6) screw thread that matches with the car rear axle is arranged, controller (8) is housed in the battery case (5), and battery (4) is contained in the battery case (5).

2, bicycle electric work-saving device according to claim 1 is characterized in that: lead A, the B on the motor (1), C can connect loudspeaker respectively, illuminating lamp and brake handgrip, and lead D couples together motor (1) and controller (8).

3, a kind of Electrical Bicycle that bicycle electric work-saving device as claimed in claim 1 is installed, it is characterized in that: motor (1) is fixed on vehicle frame (9) rear, couple together by transmission shaft chain (3) and the driving flywheel (6) that is fixed on the rear axle, battery case (5) can be fixed on vehicle frame (9) and go up or be fixed on the rear bracket (10).