Patent Application
20060174507
1. Field of the Invention
The present invention relates to far infrared ray hair dryer, and particularly, to a hair dryer which has a porous ceramic honey comb heater capable of emitting a far infrared ray out of its housing so as to dry the user's hair without hurting his/her hair.
2. Description of the Prior Art
The most essential purpose of a conventional hair dryer is to generate high temperature wind so as to dry the user's hairs efficiently. Its typical structure is shown as
Actually, the aforesaid hair dryer is a high heat consumption electrical appliance simply containing a heater coil inside. In spite of the fact that it is able to adjust the wind temperature, wind intensity and operating time at ones will, unexpectable overheating happens quite often which results in severe damage to the user's hair.
Incidentally, a conventional hair dryer often involves some unpleasant defects such as: 1. Hurting the user's hair, 2. bringing ret hot feeling to the user's head, 3. producing scorching oder, and 4. causing dizziness and headache to the user.
Other uncertain worries are: 1. radiation of extremely intensive electro-magnetic wave which is more than 20 times that a cellular phone generates, 2. significant tendency that beauticians and barbers prone to suffering from cataract, 3. teenagers' blood poisoning, 4. dizziness or weak-minded.
According to WHO Annual Report of 2001, the teenagers younger than 16 ages who are frequently exposed to radiation of electro-magnetic wave are prone to suffering from blood cancer with a probability 2.8 times than those who have never exposed under radiation of said wave. The US NIEHS, EPA organizations have tentatively established the maximum allowable value of the intensity of electro-magnetic wave as 2.0 gausses after nine year study spending US$65,000,000.
In view of the noticeable problems inherent to the conventional ohmic heat coil type hair dryer which should be overcome for the sake of the human health, the inventor has dedicated great efforts for years to studying and improving these defects and finally come up with this invention.
The main object of this invention is to provide a far infrared ray hair dryer which has a porous ceramic honey comb heater equipped in the front end of the housing near the wind exit to radiate far infrared ray after being heated. This far infrared ray wave is never hurt the human hair due to overheating, and this porous ceramic honey comb heater further can maintain a stable heating temperature, can be operated securely, and fabricated with a low cost.
The above object and other advantages of the present invention will become more apparent by describing in detail the preferred embodiment of the present invention with reference to the attached drawings.
For fuller understanding of the nature and objects of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings in which:
Referring to
The porous ceramic honey comb heater 4 is fixed on the bracket 23 with a metal ring (not shown) to which an electrode is attached to energize the metal ring. The honey comb heater 4 is then adhered around the outer side of the metal ring and the two ends of the heater element 4 are coated with an electrically conducting silica gel so that it can generate heat by introducing current from the metal ring. With this mechanism the porous ceramic honey comb heater 4 is heated up to a predetermined temperature so as to radiate a large amount of far infrared ray.
Alternatively, the honey comb heater 4 may be assembled to the metal ring of the bracket 23 with its outer edge, and connected to a metal ring at the other end, by so the ceramic honey comb heater 4 is sandwiched therebetween and allows the current to flow therethrough with the two metal rings serving as a couple of electrodes.
The porous ceramic honey comb heater 4 is a nano high technologic product fabricated by sintering process; it is able to radiate a far infrared ray with low power consumption yet a heat transformation rate as high as 95%.
The internal circuit of the hair dryer is controlled by a control switch provided on a side of the hand grip so that cold or wet wind can be outputted at different speeds as the user desires.
The ceramic heater 4 has an extra function to reduce the voltage rise so as to minimize the noise of the fan motor 22 when it rotates. The beehive configuration of the heater 4 is also possible to minimize its volume that leads to reduce the overall size of the hair dryer.
As shown in
The operational principle of the present invention can be understood with reference to
The far infrared ray radiated by the ceramic honey comb heater 4 includes characteristic data as follows:
1. Extremely low electro-magnetic wave intensity below 2 gausses;
2. Wave length of the far infrared ray: 9 μm;
3. High electrical efficiency: 33%
4. Negative ion creation: 5,000,000
5. No red hot feeling;
6. Never scorching the hair;
7. High hair drying speed.
The comparison of characteristics between the present invention and the conventional hair dryer is concluded in
Those who are skilled in the art will readily perceive how to modify the invention. Therefore, the appended claims are to be construed to cover all equivalent structures which fall within the true scope and spirit of the invention.
