JPH05168518A - Hot-air blower - Google Patents

Abstract

PURPOSE:To provide the subject blower in which far-infrared rays emitted from the surface of a heater are effectively utilized and all of the far-infrared rays are emitted outwardly and thus its main body perse is prevented from being hot. CONSTITUTION:The object blower has both a heater 2 coated with a far-infrared radiation ceramic and a reflector 3, within a cylindrical housing 1. The curved surface of the reflector 3 is formed so that all far-infrared rays perpendicularly emitted from the heater 2 can be reflected to the front opening side of the cylindrical housing 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warm air blower for heating, a hair dryer, a hair curler and the like.

[0002]

2. Description of the Related Art As a conventional warm air blower (hair dryer, etc.), for example, the technique described in Japanese Utility Model Publication No. 56-1283 is known. According to this conventional technique, as shown in FIG. 10, a warm air blower (hair dryer) is configured by arranging a motor 22, a heater 29, and a fan 27 inside a tubular housing 21, and particularly, the output of the motor case. The isolation cylinder 23 was formed by extending the shaft side to cover the output shaft 24 and the bearing (not shown). The isolation cylinder 23 prevents the fan 27 from being entangled with the output shaft 24 even when the fan 27 rotates to suck hair through the suction port.

[0003]

However, according to this conventional technique, a nichrome wire is used as the heater 29,
There is a problem that the emissivity of far-infrared rays is low, and it is difficult for the far-infrared rays to come out to the opening side of the cylindrical housing, so that the heat of the heater cannot be effectively used. Further, since the heater is a nichrome wire, there is a problem that the warm air blower itself becomes hot. The present invention has been made to solve such a problem, and an object of the present invention is to effectively use far infrared rays emitted from a heater surface and to emit all the far infrared rays to the outside by itself. The purpose of this is to provide a warm air blower that does not heat up.

[0004]

In order to achieve the above object, the present invention comprises a heater and a reflecting mirror which are coated with far-infrared radiation ceramic inside a cylindrical housing, and a curved surface of the reflecting mirror is provided with a heater. It is characterized in that far infrared rays emitted in the direction of the normal direction are all radiated to the front opening side of the cylindrical housing. Further, the heater is shaped like a trumpet, and a reflecting mirror is provided on the inner wall of the cylindrical housing. Further, the tubular housing has a curved structure, a heater is incorporated therein, and a reflecting mirror is provided on an inner wall of the tubular housing.

[0005]

According to the present invention, the heater is formed by spraying the far-infrared radiation ceramic on the surface of the flat heater or the cylindrical heater according to the present invention, and the heater and the reflecting mirror are provided inside the cylindrical housing. With the arrangement, the far infrared rays radiated from the heater are emitted to the front opening side of the cylindrical housing by the reflecting mirror, so that the far infrared rays emitted from the heater surface can be effectively used.
Further, since all the far infrared rays can be emitted to the outside, the cylindrical housing itself does not become hot.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. The same or corresponding members will be denoted by the same reference symbols throughout the following drawings.

[0007]

[Embodiment 1] FIG. 1 shows a main structure of a warm air blower according to this embodiment. In the figure, a plane heater or a cylindrical heater 2 covered with far-infrared radiation ceramic is arranged inside a cylindrical housing 1, and a reflector 3 is provided around the heater 2.
Is provided. The heater 2 is formed by spraying far-infrared radiation ceramic on the surface of a flat heater or a cylindrical heater as a base material, and the curved surface of the reflecting mirror 3 is far from the heater 2 in the normal direction. All infrared rays are formed so as to be radiated to the front opening side of the cylindrical housing 1.

That is, in FIG. 2, for example, the heater 2
Far infrared rays emitted from the point a are reflected at the point a ′ of the reflecting mirror 3 and the curved surface of the reflecting mirror 3 is designed so as to pass through the front opening side A of the cylindrical housing 1. The far infrared rays thus generated are all emitted to the outside of the cylindrical housing 1. As the material used for the reflecting mirror 3, for example, an aluminum substrate coated with a reflective material such as Al or An is used.

3 (a) and 3 (b) show the appearance when the heater 2 and the reflecting mirror 3 are applied to a hair dryer. In FIG. 1, a heater 2, a reflecting mirror 3, and a motor 5 for rotating a fan 4 are arranged inside a cylindrical housing 1.
The wind sucked from the suction port by the rotation of the fan 4 flows through the heater 2 toward the front opening side of the cylindrical housing 1.

FIG. 4 is a view showing the appearance of the plane heater 2 used in this embodiment. The plane heater 2 sprays the heating conductor 7 on the surface of the ceramic substrate 6 and further the far-infrared rays on the surface. It is created by spraying a radiant ceramic. However,
It is not always necessary to use a heater made by thermal spraying, and a heater made by another method may be used.

[0011]

[Embodiment 2] FIG. 5 shows a structure of a main part of a warm air blower having a trumpet-shaped heater. In the figure, in this embodiment, the heater 2 has a trumpet-like cylindrical shape, and the reflecting mirror 3 is provided on the inner wall of the cylindrical housing 1. In this case, the heater pattern has a spiral shape. According to this embodiment, the far infrared rays are emitted from the entire circumference of the surface of the heater 2, so that the far infrared rays can be effectively used.

FIG. 6 shows a trumpet-shaped heater 2 and a reflecting mirror 3.
The following shows the appearance when is applied to a hair dryer. Similar to the above-described embodiment, the heater 2, the reflecting mirror 3, and the motor 5 for rotating the fan 4 are arranged inside the cylindrical housing 1, and the rotation of the fan 4 sucks the wind from the suction port.

FIGS. 7A to 7F show an example of producing a trumpet type cylindrical heater. First, trumpet type metal pipe 8
Is prepared (FIG. 7A), and as shown in FIGS. 7B and 7B ′, the insulating layer 9 is sprayed on the entire circumference thereof. Next, a heat resistant tape or a metal foil tape 10 is spirally wound on the insulating layer 9. In this state, the conductor layer 11 is sprayed (see FIG.
(D) (d ')), the wrapped mask tape 10 is peeled off (Figs. 7 (e) and (e')), and further, Figs. 7 (f) and (f ').
As described above, the insulating layer 12 is sprayed on the conductor layer 11 to seal the conductor layer 11. As a result, the entire surface of the heating element becomes ceramic, and far infrared rays are radiated when the temperature is high.

[0014]

[Third Embodiment] FIG. 8 shows a structure of a main part of a warm air blower in which a reflecting mirror 3 is curved along a cylindrical housing. In the figure, in this embodiment, the heater 2 is of a flat type, and the reflecting mirror 3 is provided on the inner wall of the cylindrical housing 1. That is, FIG. 9 shows an appearance when the curved reflecting mirror 3 and the flat heater 2 are applied to a hair dryer. By having such a shape, an excellent design and function can be obtained.

[0015]

As described above, according to the present invention, the cylindrical housing is provided with the heater coated with far-infrared radiation ceramics and the reflecting mirror, and the curved surface of the reflecting mirror is projected in the normal direction from the heater. By forming far infrared rays so as to be able to radiate all of the far infrared rays to the front opening side of the cylindrical housing, and by making the heater into a trumpet shape and providing a reflecting mirror on the inner wall of the cylindrical housing, the cylindrical housing is further In addition to having a curved structure and incorporating a heater therein, and by providing a reflecting mirror on the inner wall of the cylindrical housing, far infrared rays emitted from the heater surface can be effectively used.
Further, since the far infrared rays are all emitted to the outside, the main body of the warm air machine does not become hot.

[Brief description of drawings]

FIG. 1 is a diagram showing a main part of a warm air blower according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a reflection optical path of far infrared rays by a reflecting mirror.

3 (a) is a cross-sectional front view when the warm air machine of FIG. 1 is applied to a hair dryer, and FIG. 3 (b) is an external view thereof.

FIG. 4 is a diagram showing an example of a flat heater.

FIG. 5 is a diagram showing a main part of a warm air blower according to a second embodiment of the present invention.

FIG. 6 is a sectional front view when the warm air machine of FIG. 5 is applied to a hair dryer.

7 (a) to (f) and (b ') to (f') are views showing a manufacturing process of a trumpet-type cylindrical heater.

FIG. 8 is a diagram showing a main part of a warm air blower according to a third embodiment of the present invention.

9 is a front view of a main part when the warm air fan of FIG. 8 is applied to a hair dryer.

FIG. 10 is a cutaway front view of a conventional hair dryer.

[Explanation of symbols]

 1 Cylindrical housing 2 Heater 3 Reflector 6 Ceramic substrate 7 Heating conductor 8 Trumpet type metal pipe 9,12 Insulating layer 10 Heat-resistant tape 11 Conductor layer

Claims (3)

[Claims] 1. A cylindrical housing is provided with a heater and a reflecting mirror coated with far-infrared radiation ceramic, and the far infrared rays emitted from the heater in the normal direction to the curved surface of the reflecting mirror are all in front of the cylindrical housing. A warm air blower characterized by being formed so as to be radiable on the opening side. 2. The warm air machine according to claim 1, wherein the heater has a trumpet shape, and a reflecting mirror is provided on an inner wall of the cylindrical housing. 3. The warm air machine according to claim 1, wherein the tubular housing has a curved structure, a heater is incorporated therein, and a reflecting mirror is provided on an inner wall of the tubular housing.