Bicycle deriving driving force by motor-generator

• US 8,448,736 B2
• Filed: 07/14/2009
• Issued: 05/28/2013
• Est. Priority Date: 05/21/2009
• Status: Active Grant

• Current Assignee: Suk H.O. Jang
• Original Assignee: Suk H.O. Jang
• Inventors: Jang, Suk Ho
• Primary Examiner(s): WINNER, TONY H
• Application Number:
  US13/261,034
• Publication Number:
  US 20120061161A1
• Time in Patent Office: 1,414 Days
• Field of Search: 180/206.1, 180/206.2, 180/206.5, 180/206.7
• US Class Current: 180/206.5
• CPC Class Codes: B62J 6/14 Belt drives
• CPC Class Codes: B62M 6/60 power-driven at axle parts

Abstract

Disclosed is a bicycle which is a means of short-distance movement favored by men and women of all ages. The present invention is an application of a bicycle having a motor-generator disclosed in Korean Patent Application No. 2009-035298 that the applicant of the present invention filed. Namely, a motor-generator is mounted on a side of the rear wheel of the bicycle, and a control box and a battery are mounted under the main pipe of the bicycle, and a change-over switch and a change speed switch are mounted on the handle of the bicycle. The present invention makes it possible to charge quickly and effectively via a motor-generator that is operated by the bicycle driving force on a downhill or level ground, and with charging made, the rotary force of the motor-generator is conveyed to the rear wheel to generate electric power, so that electromotive force is produced and stored by itself, and the driving force of the bicycle can be obtained by using the stored electric power. Therefore, it is possible to use the bicycle easily and conveniently for a long time, and it has an effect of much reduced leg fatigue even in the case of moving a long distance.

Claims

1. A bicycle deriving driving force by a motor-generator having a rotating plate (10) of a nonmagnetic material having a plurality of radially fixed magnets (11, 11′

), fixed plates (20, 20′

) of a nonmagnetic material which are placed on both sides of the rotating plate (10) and have a plurality of horizontally wound coil units (21, 21′

) corresponding to the magnets (11, 11′

), and a rotating axis (12) which is mounted on a center of the rotating plate (10) and at both ends of which are fixed the plates (20, 20′

) through the bearings, the bicycle comprising;

a motor-generator (30) which is mounted on a side of a rear wheel of the bicycle (50);

a power transmission means including a driving pulley (53) which is fixed on a shaft (52) where the rear wheel (51) of the bicycle (50) is rotatably mounted, a driven pulley (13) which is mounted on one end of the rotating axis (12) mounted on the center of the rotating plate (10), a belt (54) which operatively connects the driving pulley (53) and the driven pulley (13);

a control box (60) and a battery (70) which are mounted on the bicycle (50) and are connected with the coil units (21, 21′

);

a change-over switch (56) which is mounted on the handle (55) of the bicycle (50) and converts the motor-generator in such a way that it can be used selectively as a generator or a motor, and

a bend shaped support (80) includes a lower end and an upper end, the lower end is fixed on the shaft (52) and the upper end is fixed to the bicycle (50), and the fixed plate (20) is joined to the support (80),

wherein the coil units (21, 21′

) formed on the fixed plate (20, 20′

) are connected by a variable speed unit (66) that controls the short-circuit form of the electricity applied to the coil units (21, 21′

), and the variable speed unit (66) is controlled and operated by a speed change switch (57) mounted on the handle (55) of the bicycle (50).

2. The bicycle according to claim 1, wherein the control box (60) has a transformer (61) and a rectifier diode (62) embedded therein, so that when an electric charge is induced in the coil units (21, 21′

) by the rotating plate (10) that is rotated together with the rear wheel (51), it is stored in the battery (70) via the transformer (61).

3. The bicycle according to claim 1, wherein the control box (60) has a polarity change-over unit (63) embedded therein, so that according as polarity applied to the coil units (21, 21′

) from the battery (70) is alternately changed, the rotating plate (10) is rotated by an attractive force and repulsive force acting between magnets (11, 11′

) and coil units (21, 21′

).

4. The bicycle according to claim 3, wherein the polarity change-over unit (63) is operated on the base of the delivery signals from a phase sensor (64) that detects the phase of the magnets (11, 11′

) fixed to the rotating plate (10) and a phase delivery unit (65) that is connected with the phase sensor (64).

5. The bicycle according to claim 1, wherein the motor-generator (30) is mounted on one side of the rear wheel (51) of the bicycle (50).

6. The bicycle according to claim 1, wherein the motor-generators (30) are mounted on both sides of the rear wheel (51) of the bicycle (50).