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.

Description

BACKGROUND OF THE INVENTION

[0001] (a) Field of the Invention

[0002] The present invention relates to a demister and more particularly to a helmet demister which utilizes a method of balancing a temperature difference to prevent from attachment of water molecules.

[0003] (b) Description of the Prior Art

[0004] A motorcycle has already been one of most essential vehicles for short-ranged transportation of modern people. In order to protect safety of a rider, a helmet has become one of indispensable safety equipment. Therefore, whether in a sunny or rainy day, the rider has to wear the helmet to protect his or her safety; and all of the existing helmets will be attached with a piece of safety lens to keep alien objects from hitting on the rider's face upon riding the motorcycle. However, as the lens is covered, a temperature inside the helmet will increase by hot air which is caused when the rider is breathing. At this time, when air humidity in ambient environment is too high and an ambient ...

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