HELMET DEMISTER
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.
(a) Field of the Invention
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.
(b) Description of the Prior Art
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 temperature is lower than the temperature inside the helmet, water molecules in the air will be very easily attached on the lens, forming so-called mist. When the mist is produced on the helmet lens, a vision of the rider will be reduced, which will easily result in an accident. Accordingly, to prevent from forming the mist on the lens, a related vendor has provided a solution. Referring to
Accordingly, how to solve the aforementioned issues and shortcoming of the prior arts is a direction of research and development for improvement by the present inventor and related vendors.
SUMMARY OF THE INVENTIONThe primary object of the present invention is to provide a helmet demister which includes primarily a socket, a power supply device and a fan, wherein two ends of the socket are defined respectively with a clamping hole to fix an adsorption element through which the socket can be freely adsorbed on an inner surface of a helmet lens. When defogging, a controller can be used to activate the power supply device to produce electricity and drive the fan. At this time, the fan will produce wind power to from air convection. As an air convection rate is larger than a flow rate of hot air which is produced when a rider is breathing, a temperature in an inner space of the helmet lens can be maintained at being close to an ambient temperature; therefore, water molecules will not be attached on a side of the lens where the temperature is lower. On the other hand, as an entire structure is simple, it facilitates the rider to adsorb the socket at will, thereby improving the practicability.
A second object of the present invention is to provide a helmet demister which requires less electricity that there is no need to replace the battery constantly.
A third object of the present invention is to provide a helmet demister, an entire structure of which is simple and compact that the rider can easily carry.
A fourth object of the present invention is to provide a helmet demister, wherein as an entire structure is simple, a manufacturing cost is cheap to reduce a sale price.
A fifth object of the present invention is to provide a helmet demister, wherein as an air flow rate is more than three times of a respiration rate, a helmet lens can be quickly defogged and can be kept from fogging.
To enable a further understanding of the said objectives and the technological methods of the invention herein, the brief description of the drawings below is followed by the detailed description of the preferred embodiments.
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It is of course to be understood that the embodiments described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.
Claims
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.
Type: Application
Filed: Nov 4, 2009
Publication Date: May 5, 2011
Inventor: Hsien-Hao TSENG (Yonghe City)
Application Number: 12/612,433
International Classification: F24F 7/06 (20060101);