| 摘要 |
A new type of bicycle lighting system has a high-capacity dynamo system (1, 5), including a dynamo generator (1), and a converter (5) connected thereto and to the lighting bodies to convert the electric power generated by the dynamo generator (1) into light and at the same time into a regulated direct voltage for loading a battery. The dynamo generator (1) consists of an inner and an outer circle (21, 22) that rotate both around a fixed, air-core coil (23). The pole pieces form together with the fixed air-core coil a highcapacity generator that reaches at least 90 % efficiency. This capacity ensures that the dynamo system (1, 5) generates enough electric energy to load the battery and at the same time to feed front and rear lights (2, 3) from a minimum driving speed of about 5 km/h. As long as the minimum driving speed is not exceeded, the converter (5) and the front and rear lights (2, 3) are additionally fed by the battery (parking light). Electronic components, such as a threshold value device (12-16) and a delay circuit (17) ensure that the disclosed bicycle lighting system generates a constant lighting voltage of about 6 V and that the ratio of distribution between the energy required for generating light and the energy required for loading the accumulator battery (4) lies between 1 and 2:1, regardless of the speed from about 5 km/h. When the battery (4) fails, the dynamo generator (1) feeds the light sources directly through the dynamo system.
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