KR20150124618A - Hair dryer - Google Patents

Abstract

A hair dryer according to the present invention comprises: a body (10) having a front discharge hole, a rear suctioning hole (12), and an internal spatial part (13) for connecting the front discharge hole and the rear suctioning hole (12); an impeller (20) disposed on the rear end of the internal spatial part (13) of the body (10) to ventilate external air suctioned through the suctioning hole (12) towards the discharge hole (11); a motor (30) formed in the internal spatial part (13) of the body (10) to transfer rotational power to the impeller (20); a heater (40) fixed into the internal spatial part (13) of the body (10), and disposed in the center of the body (10) to heat external air; a power supply unit penetrated through and inserted into the rear end of the body (10), and electrically connected to the motor (30) and the hater (40); and a grip handle (60) fixed into a lower part of the body (10). The impeller (20) includes: a boss (21a) coupled to the motor (10); multiple internal blades (22a) formed on the outer circumference of the boss (21); a cylindrical frame (23) having an internal wall fixed into an end of the internal blade (22a); and multiple outer blades (24) formed on an external wall of the frame (23).

Description

Hair dryer {HAIR DRYER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair dryer, and more particularly, to a hair dryer in which an amount of blowing of an impeller provided in an inner space of a hair dryer body is increased.

With respect to hair dryer technology,

Korean Patent Registration No. 10-0541851 (Registered on Feb. 2, 2006, hereinafter referred to as "prior art"), "hair dryer equipped with far infrared ray and negative ion generating member" is proposed.

The prior art is a hair dryer configured to suck ambient air by a fan interlocked with a driving motor and to heat and discharge the ambient air by a heater. The hair dryer includes a support member positioned at a front side or a side of the heater, And the negative ion generating member is fixedly installed.

Therefore, at the same time as the hair is dried, the far infrared rays and negative ions which are beneficial to the human body can be radiated to the human head, thereby promoting the human biological activity and maintaining the refreshing mood.

However, the fan of the prior art generally has a shape in which the distance between two adjacent blades is narrowed from the end of the blades toward the center of the blast fan.

When the amount of rotation of the fan is constant, the amount of air blowing depends on the number of blades formed in the fan.

This is because the wings formed in the fan push the air that has stayed behind the fan toward the front of the fan as the fan rotates.

Therefore, a general fan increases the number of blades to increase the blowing amount.

However, if the number of the blades is increased, the area of the blast furnace, which is the space between the adjacent blades, through which the air passes, is reduced, and as a result, the blowing amount is reduced.

In order to increase the blowing amount with a small number of wings, the rotation of the motor must be increased, which leads to an increase in power consumption.

An object of the present invention is to provide a hair dryer having an impeller that does not reduce the area of an air passage while increasing the number of blades.

According to an aspect of the present invention, there is provided a hair dryer comprising:

A body having a front discharge opening and a rear suction opening, and an inner space portion interconnecting the discharge opening and the suction opening;

An impeller arranged at the rear end side of the inner space portion of the body for blowing outside air sucked into the suction port toward the discharge port side;

A motor installed in an inner space of the body to transmit rotational power to the impeller;

A heater fixed to an inner space of the body, the heater being disposed at a side of the body to heat the outside air;

A power supply unit inserted through the rear lower end of the body and electrically connected to the motor and the heater; And

A handle for grip which is fixed to a lower portion of the body;

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The impeller

A boss coupled to the motor;

A plurality of inner blades formed on an outer periphery of the boss;

A cylindrical frame having an inner wall fixed to an end of the inner blade;

A plurality of outer blades formed on an outer wall of the frame;

.

In the hair dryer according to the present invention,

There is an effect of increasing the blowing amount of the impeller.

1 is a side cross-sectional view of a hair dryer in which an impeller according to the present invention is applied;
2 is a perspective view of an impeller according to the present invention;
3 is a front view of an impeller according to the present invention.
4 is another embodiment of an impeller according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, the direction of the discharge port side is specified on the front side and the direction of the suction port side is specified on the basis of FIG. 1, and the direction of the body side is designated upward and the handle side is specified downward.

1, the hair dryer according to the present invention comprises:

A motor 30, a heater 40, a power supply unit 50, and a handle 60. The body 10, the impeller 20, the motor 30, the heater 40,

Looking at each configuration,

The body 10

As shown in Figure 1,

As a cylindrical structure hollow in the front and back,

The front discharge port 11 and the rear suction port 12, and

An internal space 13 connecting the discharge port 11 and the suction port 12 with each other,

.

At this time, it is preferable that the suction port 12 is formed of a plurality of holes passing through the front and rear.

The impeller 20

As shown in Figs. 1 to 3,

And is arranged at the rear end side of the inner space portion 13 of the body 10 for forcibly blowing the outside air sucked into the suction port 12 toward the discharge port 11,

A plurality of inner blades 22 whose one end is fixed along the outer circumference of the boss and an inner wall at the other end of the inner blade 22, A fixedly formed cylindrical frame 23, and

A plurality of outer blades 24 formed on an outer wall of the frame 23,

.

Therefore, an outer blowing passage 24a is formed between two adjacent outer blades 24, and an inner blowing passage 22a is formed between two inner blades 22 adjacent to each other.

At this time, the outer blades 24 and the inner blades 22 are radially arranged about the bosses 21.

On the other hand, in a general fan structure, it is difficult to increase the number of the blades because the structure of the blast furnace is reduced as the number of blades increases in order to increase the blowing amount.

On the other hand, the impeller of the present invention is a structure in which the blades 22 and 24 are separated into the outer blade 24 and the inner blade 22 by the frame 23.

Accordingly, the two outer blades 24 adjacent to each other and the two adjacent inner blades 22 adjacent to each other can be formed differently.

That is, even if the number of the outer blades 24 is increased, the area of the inner blowing passage 22a does not decrease.

The angle between the two adjacent outer blades 24 is set such that the angle between the two adjacent inner blades 22 is equal to the angle between the adjacent inner blades 22 so that the number of the outer blades 24 can be increased and the area of the inner blowing passage 22a can be maintained or increased. Is formed.

The number of the outer blades 24 is formed to be larger than the number of the inner blades 22.

That is, even if the number of the outer blades 24 is increased, the area of the inner blowing passage 22a is not reduced, so that the blowing amount can be increased as compared with a general fan.

The operation of the impeller according to the present invention having the above-

The air introduced into the inner space portion 13 of the body 10 through the inlet port 12 is transferred to the front of the impeller 20 by the outer blade 24 while the impeller 20 rotates, And passes through the outer blowing passage 24a formed between the adjacent outer blades 24.

At the same time, the air is conveyed to the front of the impeller 20 while passing through the inner air passage 22a by the inner blade 22. [

Therefore, even if the number of the outer blades 24 is increased, the amount of air blown to the discharge port 11 is increased due to the impeller 20 whose area of the inner blowing passage 22a is not reduced.

4, a cylindrical sub-frame 25 having an inner wall fixed to an end of the outer blade 24 may be formed, and a sub-blade 26 may be provided on an outer wall of the sub- ) Can be further formed.

At this time, a sub airflow path 26a is formed between the sub-blades 26 adjacent to each other.

With such a configuration, the blowing amount can be further increased.

And the sub-frame 25 and the sub-blade 26 can be continuously added as necessary.

The motor 30

As shown in Figure 1,

A drive shaft 31 is provided at the rear end of the boss 21 for transmitting rotational power to the impeller 20. The drive shaft 31 is disposed in the inner space 13 of the body 10, (31).

Therefore, the impeller 20 rotates together with the driving shaft 31 when the motor 30 rotates.

The heater 40

As shown in Figure 1,

And is fixed to the inner space part 13 of the body 10 and is disposed between the discharge port 11 of the body 10 and the impeller 20 to heat the outside air transferred from the impeller,

A heating coil 41 having a spiral structure, and

A heater support 42 connected to the heating coil 41 and fixed in the receiving portion 13 to fix the heating coil 41 to the inner wall of the inner space 13 of the body 10,

.

The power supply unit 50

As shown in Figure 1,

And is electrically connected to the motor (30) and the heater (40) to be supplied with electric power by being inserted into a rear lower end portion (lower end portion) of the body (10)

And has a conventional electric wire structure having a power plug at an end thereof.

The handle 60

As shown in Figure 1,

And is disposed so as to be biased toward the lower portion of the body 10, particularly the rear side, so that the user can hold the body 10 with one hand.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as falling within the scope of protection.

10: Body
11: outlet 12: inlet
13: inner space portion
20: Impeller
21: Boss
22: inner blade 22a: inner blower
23: Frame
24: outer blade 24a:
25: subframe
26: sub blade 26a: sub air blowing furnace
30: Motor
31:
40: heater
41: Heating coil 42: Heater support
50: Power supply
60: Handle

Claims (2)

A body 10 having a front discharge port 11 and a rear suction port 12 and an inner space 13 interconnecting the discharge port 11 and the suction port 12;
An impeller 20 arranged on the rear end side of the internal space 13 of the body 10 to blow outside air sucked into the suction port 12 toward the discharge port 11;
A motor 30 installed in the inner space 13 of the body 10 to transmit rotational power to the impeller 20;
A heater (40) fixed to the inner space (13) of the body (10) and disposed on a side of a middle portion of the body (10) to heat the outside air;
A power supply unit 50 inserted through the rear lower end of the body 10 and electrically connected to the motor 30 and the heater 40; And
A grip handle 60 fixed to a lower portion of the body 10;
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The impeller (20)
A boss 21a coupled to the motor 10;
A plurality of inner blades 22a formed on the outer periphery of the boss 21;
A cylindrical frame 23 to which an inner wall is fixed at an end of the inner blade 22a;
A plurality of outer blades 24 formed on an outer wall of the frame 23;
The hair dryer comprising:
The method according to claim 1,
The outer and inner blades 24 and 22 are arranged radially about the boss 21 so that the angle between two adjacent outer blades 24 is the angle between the two adjacent inner blades 22 Wherein the hair dryer comprises:

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