JPH0234603B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device whose main purpose is to dry and set hair, etc., and in particular, to a device that can dry and set hair in a short time and with an energy-saving effect. be.

[Conventional technology]

Conventional devices of this type energize an electrical resistor, transfer the generated Joule heat to the air sent from a blower, and blow the heated air onto the hair to remove moisture from the surface of the hair and set it. was. In this case, most of the hot air that is blown dissipates into the atmosphere without completely transferring its retained heat to the hair.
This phenomenon can be confirmed immediately by bringing your hand close to where the hot air is being blown. This is because the hot air runs idly without coming into contact with the surface of the hair.

Therefore, instead of the usual Joule heat, a method using infrared rays using a tubular or rod-shaped infrared heater has been proposed, as described in Japanese Utility Model Publication No. 50-4472 and Japanese Unexamined Patent Publication No. 56-3005. ing.

[Problem that the invention seeks to solve]

However, in all of these heaters, the heater itself emits infrared rays directly, and in order to increase the amount of infrared radiation, the temperature of the heater itself must be set high to generate heat, and on the other hand, air is forcedly blown by a fan. Therefore, the heater heat is trapped inside the main body case, which not only improves safety, but also requires measures to prevent thermal deformation of the main body case, which complicates the structure.

Furthermore, the latter uses a straight rod-shaped heater called an "igniter," and far-infrared rays are emitted in all directions from the cylindrical surface.
A reflector is required to efficiently radiate the light forward, and in order to store this reflector inside the main body case, the diameter of the main body case, especially on the outlet side, must be increased, and it is also heavy. , which is difficult to achieve with this type of hand-held hair dryer.

In particular, both conventional examples are designed to emit infrared rays from the heater itself, so the heater cannot be exposed directly to the air outlet during use, and a special protective member is required to prevent electric shock. This protective member (exit grille) blocks infrared rays and reduces the efficiency of irradiating the hair.

[Means and actions for solving problems]

The present invention has been made in view of these points, and is a hair styling dryer in which a motor, a fan, and a heating element are housed in a blower tube, which is provided with a large number of through holes, and which emits infrared rays in a long wavelength band. A plate-shaped far-infrared radiator is positioned between the heating element and the air outlet of the blower tube, and hot air heated by the heating element passes through the through hole and is blown out from the air outlet. By drilling the through holes in the far-infrared radiator so as to distribute them over the entire area of the outlet, the far-infrared radiator is heated by a separate heating element and far-infrared rays are radiated from the outlet. be.

Furthermore, in heating the far-infrared radiator with the heating element, the present invention uses not only direct heat from the heating element;
The air blown by the fan is turned into hot air by a heating element, and the hot air is also heated by passing through a hole drilled in the far-infrared radiator, and the hot air after passing through is directly blown onto the hair. This makes it possible to efficiently raise the temperature of the far-infrared radiator.

Further, in the present invention, when raising the temperature of the far-infrared radiator with hot air, the through-holes are formed in the far-infrared radiator so that the through-holes are distributed over the entire area of the outlet from which the hot air is blown out. , the hot air from the outlet can be blown out over the entire area of the outlet, and this means that the far-infrared radiators between the holes are also dispersed over the entire area of the outlet. From the outlet, a mixture of hot air and far infrared rays is radiated over the entire area and hits the hair, allowing efficient hair drying.

Moreover, in the present invention, by positioning the indirectly heated far-infrared radiator between the heating element and the air outlet, the energized heating element is blocked by the non-energized far-infrared radiator. Even if a user accidentally inserts hair or a finger into the air outlet, it will not immediately lead to an electric shock accident, and as a result, there is no need to install a special protective grid member at the air outlet, and the structure is simple. Moreover, it can be made lightweight, and it is also possible to prevent far-infrared rays from being blocked by the protective grid member, thereby increasing irradiation efficiency.

〔Example〕

This will be explained below using examples. Reference numeral 1 denotes a motor having an axial fan 2, which is held between ribs 5 provided on a rear cover 4 having a ventilation hole 3 and press-fitted into a blower tube 6. The blower tube 6 is provided with a blower outlet 16 at its front portion.

Reference numeral 7 denotes a heating element, such as a honeycomb-shaped positive temperature coefficient thermistor having a plurality of ventilation holes 8.
A far-infrared radiator 9 that generates far-infrared rays in a long wavelength band and is obtained by sintering silicate as a main material is disposed on the side, and is press-fitted and fixed into the blower tube 6 via electrode plates 10 and 11. . This far-infrared radiator 9 has a plate-like shape, and has a large number of through holes 9a penetrating between the front and back sides, and is positioned in a direction transverse to the hot air direction of the blast tube. Reference numeral 12 designates a plurality of pins formed by providing a plurality of grooves at the tip of the blower tube 6 on the side of the outlet 16 .

When drying and setting the hair, first insert the pin into the hair. When the motor 1 and the heating element 7 are energized, the temperature of the heating element 7 rises immediately.
The far-infrared radiator 9 in front of the heating direction is also heated. The fan 2 turns the air into hot air through the ventilation hole 8, and this hot air passes through the through hole 9a of the far-infrared radiator 9, increasing the temperature of the far-infrared radiator 9, and the hot air after passing is blown onto the hair. It will be done.

In this case, since a large number of through holes 9a are evenly arranged over the entire surface of the far-infrared radiator 9, the passing hot air is evenly dispersed, and therefore can be blown out from almost the entire surface of the air outlet 16. It can also reduce the hot point phenomenon where heat is locally concentrated and becomes abnormally hot.

Further, the far-infrared radiator 9 is heated and actively emits far-infrared rays. By uniformly distributing the through holes 9a of the far-infrared radiator 9, the radiation surface of the far-infrared radiator 9 is also uniformly distributed, and the air outlet 1
6, a mixture of hot air and far-infrared rays will be emitted over the entire area. When the far infrared rays radiated in this way are projected onto the hair 14, it generates heat in the deep part 14a of the hair. On the other hand, the heat possessed by the air 16 blown onto the hair through the through hole 9a of the far-infrared radiator 9 has a relatively short wavelength, so it heats the surface layer 14b of the hair alone. Also, as shown by reference numeral 15, for example, when water droplets are attached,
The emitted far infrared rays heat the surface layer of the water droplet 15. The water droplets 15 are quickly evaporated by both of them, but the gasified water is swept away by the blown air flow, promoting evaporation one after another, and drying is performed quickly. These functions double the effect synergistically because the pins 12 deeply part the hair to create multiple air cavities.

〔effect〕

As described above, according to the present invention, a hair styling dryer in which a motor, a fan, and a heating element are housed in a blower tube includes a far-infrared radiator that is provided with a large number of through holes and that emits infrared rays in a long wavelength band. , located between the heating element and the air outlet of the blower tube, allowing the hot air heated by the heating element to pass through the through hole and blowing it out from the air outlet, and the through holes being distributed over the entire area of the air outlet. By providing the through holes in the far-infrared radiator, hot air and far-infrared rays can be applied to the hair in a mixed state over the entire area of the outlet, thereby increasing the drying speed.

Moreover, it is also possible to expose a non-energized far-infrared radiator at the air outlet, and in this case, there is no need to use special members such as grid members to protect against electric shock accidents, which not only simplifies the structure but also reduces weight.
Moreover, since the emitted far-infrared rays can be directly irradiated onto the hair without being blocked, a hair styling dryer that can improve irradiation efficiency can be obtained.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view, FIG. 2 is a side view, and FIG. 3 is an explanatory diagram of the operation. DESCRIPTION OF SYMBOLS 1...Motor, 2...Fan, 6...Blower tube, 7...Heating element, 9...Far-infrared radiator, 9a...Through hole, 12...Pin, 14...Hair, 15...Water droplet.

Claims (1)

[Claims] 1. In a hair dryer in which a motor, a fan, and a heating element are housed in a blower tube, a plate-shaped far-infrared radiator that has many through holes and emits infrared rays in a long wavelength band is placed between the heating element and the blower tube. The hot air heated by the heating element is passed through the through hole and is blown out from the air outlet, and the through hole extends over the entire area of the air outlet. A hair styling dryer comprising a far-infrared radiator with the above-mentioned through-holes arranged in a dispersed manner.