Warning signal device of helmet

A warning signal device of a helmet, including:

• the helmet, having a shock absorbing pad disposed an upper portion defined therein;
• a light-pervious head housing, disposed on a surface of the helmet and formed with at least one opening/closing port;
• a soft wiring light source structure, electrically connected to a plurality of light sources, wherein the soft wiring light source structure is disposed on the shock absorbing pad of the helmet and corresponding to the light-pervious head housing;
• a waterproof sleeve, formed in a transparent status and located around an outer side of the soft wiring light source structure;
• a cathode dual-connector, connected to one end of the soft wiring light source structure;
• an anode dual-connector, connected to another end of the soft wiring light source structure;
• and
• a battery case and power switch, disposed on the shock absorbing pad and including a battery case and a power switch electrically connected and corresponding to the opening/closing port of the light-pervious head housing, wherein the power switch is disposed on an electric circuit board, the battery case and power switch is electrically connected to the cathode dual-connector and the anode dual-connector;
• wherein, a signal having a certain brightness is emitted by the light source of the soft wiring light source structure through the light-pervious head housing of the helmet;
• wherein the soft wiring light source structure and the waterproof sleeve are located between the light-pervious head housing and the shock absorbing pad, and the helmet is located between the soft wiring light source structure and the waterproof sleeve and the shock absorbing pad.