Crown block tri-color signal lamp

The utility model relates to a novel electric control assembly and belongs to dynamo-electric equipment, particularly a crown block tri-color signal lamp. In the prior art, the complete sealing operation cannot be well conducted, so that the rainwater easily flows into signal lamps in a non-rainproof production environment, such as in an outdoor crown block. In this way, the power supply transformer and the integrated circuit of a conventional crown block tri-color signal lamp easily burn out to influence the normal operation of the equipment. A control circuit configured based on an electronic integrated circuit is obvious better in reliability, interference immunity and handleability, so that the equipment is low in modification cost, high in security and ideal in usage effect. Therefore, the crown block tri-color signal lamp can be easily applied and popularlized in seriously severe production environments, such as rainy and dusty environments.