Helmet demister

Abstract

A helmet demister includes a socket, a power supply device and a fan. Two ends of the socket are defined respectively with a clamping hole to fix an adsorption element through which the socket is freely adsorbed on an inner surface of a helmet lens. When defogging, a controller activates the power supply device to produce electricity and drive the fan. Then, the fan produces wind power to cause air convection. As this air convection rate is larger than a flow rate of hot air produced when a rider is breathing, a temperature in an inner space of the helmet lens is maintained at being close to a temperature of ambient environment; therefore, water molecules are not attached on a side of the lens where the temperature is lower. Moreover, as en entire structure is simple, the socket can be adsorbed on the helmet lens freely, to improve the practicability.

1 . A helmet demister comprising:
 a socket, a pre-determined location of the socket is defined with at least one clamping hole to fix at least one adsorption element;   at least one power supply device which is provided at the socket and is electrically connected with a controller; and   at least one fan which is provided at a pre-determined location of the socket and is electrically connected with the power supply device.   
     
     
         2 . The helmet demister according to  claim 1 , wherein a location of the socket where the fan is provided is transfixed with a vent which is connected to an air pipe, allowing external air to flow through. 
     
     
         3 . The helmet demister according to  claim 1 , wherein an air flow rate which is caused after an operation of the fan is larger than a respiration rate. 
     
     
         4 . The helmet demister according to  claim 1 , wherein the power supply device is an external circuit. 
     
     
         5 . The helmet demister according to  claim 1 , wherein the power supply device is a battery.