JPH0716113A - Hair dryer - Google Patents

Abstract

PURPOSE:To suppress the rise of the peripheral surface temp. of a dryer body by preventing back flow of hot air into the spacing between the outer peripheral surface of an air tunnel of a fan unit and the inside peripheral surface of the dryer body. CONSTITUTION:This hair dryer has the dryer body 10, a fan unit 20 and shielding plate 21 disposed within the dryer body 10 and a heater 22 disposed on the inner side of the shielding plate 21. This fan unit 20 is constituted by disposing a fan 27 driven by a motor 26 within the cylindrical air tunnel 23 fitted to the inner periphery of the dryer body 10 and ribs 18 are integrally projected and formed at the outer peripheral edge on one end side adjacent to the shielding plate 21 in the air tunnel 23 of the fan unit 20. Further, the ribs 28 are brought into tight contact with the inner peripheral surface of the dryer body 10 to seal the spacing (a) between the outer peripheral surface of the air tunnel 23 and the inner peripheral surface of the dryer body 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair dryer used for styling hair and the like.

[0002]

2. Description of the Related Art FIG. 3 shows a part of the structure of a conventional hair dryer. Reference numeral 1 is a dryer main body formed of synthetic resin in a cylindrical shape. A heating plate 3 is provided. Heat shield 3
Is made of a metal plate and is attached along the inner peripheral surface of the dryer main body 1, and the heater 4 is provided inside the heat shield plate 3.

The fan unit 2 includes a wind tunnel 5 formed of a synthetic resin in a cylindrical shape, and a holder 7 supported by a plurality of blades 6 at the central portion of the end surface on one end side of the wind tunnel 5.
And a motor 8 mounted in the holder 7 and a fan 9 attached to the rotary shaft 8a of the motor 8 and disposed in the wind tunnel 5, the wind tunnel 5 being the dryer body 1
Is fitted and supported on the inner circumference of the.

When the hair dryer is used, the heater 4 and the motor 8 are energized, the motor 8 drives the fan 9 to rotate, and the rotation of the fan 9 causes an intake port (not shown) on the rear end side of the dryer main body 1. ) From the dryer body 1
Air is sequentially sucked into the inside.

The air sucked into the dryer body 1 flows through the wind tunnel 5 of the fan unit 2 and is blown to the side where the heater 4 is arranged. Then, this air is heated by contact with the heater 4 to become warm air, and this warm air is sequentially discharged from a discharge port (not shown) on the tip side of the dryer body 1.

[0006]

The heat shield plate 3 provided on the inner peripheral surface of the dryer main body 1 is provided to block the radiant heat of the heater 4 and suppress an increase in the peripheral surface temperature of the dryer main body 1. It is what

However, there is a slight gap a between the outer peripheral surface of the wind tunnel 5 and the inner peripheral surface of the dryer body 1 in the fan unit 2, and the high temperature hot air heated by the heater 4 is present in this gap a. There is a problem that the air flows back and invades, and the warm air comes into contact with the inner peripheral surface of the dryer main body 1 to raise the peripheral surface temperature of the dryer main body 1.

The present invention has been made by paying attention to such a point, and an object thereof is to provide warm air into the gap between the outer peripheral surface of the wind tunnel in the fan unit and the inner peripheral surface of the dryer main body. It is an object of the present invention to provide a hair dryer that can prevent the backflow of the dryer and reliably suppress an increase in the peripheral surface temperature of the dryer body.

[0009]

In order to achieve such an object, the present invention provides a cylindrical dryer body having a discharge port on the front end surface and an intake port on the rear end surface, and a dryer body provided in the dryer main body. The fan unit, a heat shield plate provided on the inner peripheral surface of the dryer main body between the fan unit and the discharge port, and a heater provided inside the heat shield plate. The unit is provided with a fan driven by a motor in a cylindrical wind tunnel fitted to the inner circumference of the dryer main body, sucks air from the intake port into the dryer main body by the fan, and uses this air in the wind tunnel. In a hair dryer that blows hot air through the inside of the heater to the hot air and discharges the hot air from the discharge port, the wind tunnel of the fan unit has an outer periphery on one end side adjacent to the heat shield plate. A rib is integrally formed on the inner wall of the dryer main body, and the rib is closely attached to the inner peripheral surface of the dryer main body to seal the gap between the outer peripheral surface of the wind tunnel and the inner peripheral surface of the dryer main body. .

[0010]

The radiant heat of the heater is blocked by the heat shield plate to prevent the radiant heat from being directly applied to the dryer body.
The backflow of warm air into the gap between the outer peripheral surface of the wind tunnel and the inner peripheral surface of the dryer body in the fan unit is blocked by the ribs formed on the outer peripheral edge of the wind tunnel, thus increasing the temperature of the peripheral surface of the dryer body. Is reliably suppressed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 2 shows a side view of the entire hair dryer, and 10 is a cylindrical dryer main body made of synthetic resin, and this dryer main body 10 is obtained by fitting a front case 10a and a rear case 10b. It is assembled.

The tip of the dryer body 10 has a discharge port 11
The blower cylinder 12 is attached to the discharge port 11, and the rear end surface of the dryer body 10 opens as an intake port 13, and the intake port 13 is provided with a mesh-shaped guard 14.

A cord reel device 15 is provided on the rear end side of the dryer main body 10, and the cord reel device 15 is provided.
A power cord 16 is wound around the. A foldable handle 17 is attached to the lower surface of the dryer body 10 near the rear end, and the power cord 16 is introduced into the handle 17. A plug 18 is attached to the tip of the power cord 16.

An outlet 19 is formed in the lower portion of the handle 17 from the rear surface to the lower end surface, and the power cord 16 can be pulled out to the lower side of the handle 17 through the outlet 19. ing.

A fan unit 20 is provided in the middle of the dryer main body 10, and a metal heat shield plate 21 is provided at the tip end side thereof. The fan unit 20 and the heat shield plate 21 are provided.
And are adjacent to each other. As shown in FIG. 1, the heat shield plate 21 is attached along the inner peripheral surface of the dryer body 10, and a heater 22 is provided inside the heat shield plate 21.

The fan unit 20 has a wind tunnel 23 formed of a synthetic resin in a cylindrical shape, a holder 25 supported by a plurality of blades 24 at the center of one end face of the wind tunnel 23, and this holder. 25, and a fan 27 attached to the rotary shaft 26a of the motor 26 and arranged in the wind tunnel 23. The wind tunnel 23 is fitted to and supported by the inner circumference of the dryer body 10. Has been done.

The heat shield plate 21 is provided in the wind tunnel 23.
A rib 28 having a triangular cross-section along the circumferential direction is integrally formed at the outer peripheral edge of one end side adjacent to the outer peripheral surface of the wind tunnel 23 by the close contact with the inner peripheral surface of the dryer body 10. A gap a between the inner peripheral surface of the dryer body 10 and the inner peripheral surface of the dryer body 10 is hermetically sealed.

Reference numeral 29 shown in FIG. 2 is a slide type operation switch provided on the front surface of the handle 17. When using a hair dryer, connect the power cord 16 to the outlet 1.
9 is pulled out, the plug 18 is inserted into an indoor outlet, and the operation switch 29 is operated. In response to this operation, the heater 22 and the motor 26 are energized,
The fan 27 is driven and rotated by the
The air is sequentially sucked into the dryer main body 10 from the intake port 13 by the rotation of.

The air sucked into the dryer body 10 flows through the wind tunnel 23 of the fan unit 20 and is blown to the side where the heater 22 is arranged. And this air is heater 2
The hot air is heated by contact with the air 2, and the hot air is sequentially discharged from the discharge port 11.

The radiant heat of the heater 22 is shielded by the heat shield plate 21 arranged on the outer peripheral side of the heater 22, so that direct irradiation of the radiant heat to the dryer body 10 is prevented. The gap a between the outer peripheral surface of the wind tunnel 23 and the inner peripheral surface of the dryer body 10 in the fan unit 20 is
The ribs 28 are hermetically sealed by the ribs 28 formed integrally with the outer peripheral edge of the wind tunnel 23, so that the ribs 28 prevent backflow of warm air into the gap a. Therefore, the rise of the peripheral surface temperature of the dryer body 10 is surely suppressed,
The hair dryer can be handled safely.

[0021]

As described above, according to the present invention,
A simple structure in which a rib is integrally formed on the outer peripheral edge of the wind tunnel in the fan unit, and the rib is brought into close contact with the inner peripheral surface of the dryer main body, is provided between the outer peripheral surface of the wind tunnel and the inner peripheral surface of the dryer main body. It is possible to prevent backflow of warm air into the gap and reliably suppress an increase in the peripheral surface temperature of the dryer body.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a hair dryer according to an embodiment of the present invention.

FIG. 2 is a side view of the entire hair dryer.

FIG. 3 is a partial cross-sectional view of a conventional hair dryer.

[Explanation of symbols]

 10 ... Dryer body 11 ... Discharge port 13 ... Intake port 20 ... Fan unit 21 ... Heat shield plate 22 ... Heater 23 ... Wind tunnel 26 ... Motor 27 ... Fan

Claims (1)

[Claims] 1. A cylindrical dryer body having a discharge port on a front end surface and an intake port on a rear end surface, a fan unit provided in the dryer body, and a space between the fan unit and the discharge port. The fan unit includes a heat shield plate provided on the inner peripheral surface of the dryer body and a heater provided inside the heat shield plate, and the fan unit is provided in a tubular wind tunnel fitted to the inner periphery of the dryer body. A fan driven by a motor is provided, the fan sucks air into the dryer main body from the intake port, and blows the air through the wind tunnel to the periphery of the heater to generate warm air. In the hair dryer which discharges from the discharge port, a rib is integrally formed on the outer peripheral edge of the fan unit adjacent to the heat shield plate at the outer peripheral edge adjacent to the heat shield plate. Hair dryer, characterized in that in close contact to the surface are sealed the gap between the outer peripheral surface and the dryers inner peripheral surface of the body of the wind tunnel.