KR200367465Y1 - Low noise hair-dryer - Google Patents

Abstract

The present invention relates to a hair dryer, and more particularly to a propeller-type hair dryer that sucks air from the outside and discharges it into hot air, and relates to a low noise hair dryer that can reduce noise in a very simple method and at a low cost.

According to the present invention, an air inlet 11 is formed at one end, a hot air outlet 13 is formed at the other end, and an outer casing 10 having a handle 15 at a lower end thereof, and the air inlet 11 side. It is fixed to the inner casing 20, the motor 21 and the blowing fan 23 operated by the motor 21 is installed, and the heat generating member 30 is installed on the hot air outlet 13 side And, in the conventional hair dryer including a foreign matter inflow prevention member 50 which is installed on the air inlet 11 side, characterized in that the inner and outer surfaces of the inner casing (20) has been locked. By locking the inner and outer surfaces of the inner casing, the noise generated by the high speed air flow introduced from the outside colliding with the inner casing is significantly reduced, and the locking surface also has thermal insulation capability, heat resistance, cold resistance, Right such as impact resistance Bar has an excellent effect with a characteristic, resulted to be about 30% of noise is lower than the noise of the inner casing having a conventional plastic surface in an actual experiment.

Description

LOW NOISE HAIR-DRYER

The present invention relates to a hair dryer, and more particularly, to a propeller-type hair dryer that sucks air from the outside and discharges it into hot air, and relates to a low noise hair dryer that can reduce noise in a very simple method and at a low cost.

In general, the hair dryer is an electrical appliance that allows the hair to dry quickly while being heated by hot air generated through electricity, and is one of essential items frequently used in daily life. The hair dryer is basically provided with a blowing fan for injecting the outside air to discharge the air volume, where the air introduced from the outside collides with the blowing fan and generates noise while rubbing against the inner wall of the casing. In general, noise is more severely generated in a propeller-type hair dryer that sucks air from a rear side and discharges it into hot air than a rotary hair dryer that sucks air from both sides and discharges it into hot air.

As described above, in the hair dryer, research has focused on reducing noise by reducing friction between the intake air and the inner wall because the source of the noise is the friction between the inlet air and the inner wall of the casing. As a result, Utility Model Registration Application No. 20-2001-0038099 uses a sirocco fan having a relatively large number of blades to reduce noise by reducing the friction between the inlet air and the inner wall by sucking air from both sides rather than the rear side. Rotary hair dryers are known which reduce the occurrence.

In addition, Patent Application No. 10-1997-050723 discloses a substantially cylindrical housing having a suction opening at a rear end and a discharge opening at a front end thereof, a fan disposed at a rear side of the housing, and a fan disposed at the front of the fan to drive the fan. In a hair dryer having a motor and a heater disposed in front of the motor, the hair dryer comprises a cylindrical body having a rearward extension between the suction port and the fan, and the front end of which is disposed inside the peripheral end of the fan to provide external air from the suction port. A bell mouse is installed to guide the inner peripheral part from the peripheral edge of the fan, and a part of the housing is opened to form a transverse inlet for guiding external air to the peripheral end of the fan through the outer peripheral edge of the bell mouse. In this case, a small amount of air is introduced into the peripheral end of the fan so that the peripheral length of the opening of the lateral intake port is 1/3 to 1/10 of the previous peripheral Propeller-type hair dryers are known which are characterized by guiding.

However, as described above, the propeller-type hair dryer including the rotary hair dryer and the bell mouse using the sirocopene requires a separate device or parts for noise prevention and the manufacturing cost increases because of its complicated structure. There is a problem that increases the cost burden of the consumer.

Therefore, the present invention aims to develop a low noise hair dryer that can effectively suppress noise with a very simple method and low cost in a propeller-type hair dryer that sucks air from the outside and discharges it into hot air.

This problem is achieved by a low noise hair dryer according to the present invention, which has a locking operation on the inner and outer surfaces of the inner casing of the blower fan area where the flowing air collides to provide the cause of noise.

1 is a cross-sectional view of a low noise hair dryer 1 according to the present invention,

FIG. 2 shows a view in which the inner and outer surfaces of the inner casing 20 are locked and the microstructure of the surface thereof.

Explanation of symbols on the main parts of the drawings

1: hair dryer 10: outer casing

11 air inlet 13 hot air outlet

15: handle 17: control operation

20: inner casing 21: motor

23: blower fan 25: motor support

27: air flow guide rib 30: heat generating member

50: foreign material inflow prevention member 62: adhesive layer

64: short fiber 100: power line

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of a low noise hair dryer according to the present invention.

1 shows a cross-sectional view of a low noise hair dryer 1 according to the present invention.

As shown in FIG. 1, the low noise hair dryer 1 according to the present invention has an air inlet 11 formed at one end thereof, a hot air outlet 13 formed at the other end thereof, and a handle 15 at the lower end thereof. An inner casing 20 provided with an outer casing 10 to be provided, fixed to the side of the air inlet 11, and having a motor 21 and a blowing fan 23 operated by the motor 21. It is composed of a heat generating member 30 is installed on the hot air discharge port 13 side, the inner and outer surfaces of the inner casing 20 is characterized in that the locking process.

The outer casing 10, which forms the outer shape of the low noise hair dryer 1 according to the present invention, is formed at one end thereof with an air inlet 11 through which air is introduced by the operation of the blower fan 23, and the other end thereof. There is formed a hot air discharge port 13 in which the air introduced in this way is heated by the heat generating member 30 to be discharged as hot air, and the entire operation of the hair dryer, for example, the presence or absence of operation, the strength of the air volume, the hot air Or a control operation unit 17 for controlling the selection of cold air, etc. is provided, preferably a handle 15 that can be folded by a hinge connection is provided. The outer casing 10 is preferably formed by assembling two casing halves.

The inner casing 20 formed in a pipe structure is fixed to the air inlet 11 side of the outer casing 10 by screwing, for example, and the motor 21 is provided at the inner central portion of the inner casing 20. Motor support 25 for the installation of the) is installed and a plurality of guide ribs (27) guide ribs are formed radially up to the inner wall of the inner casing (20), the inner casing (20) In the outer central portion of the other several fasteners (not shown) corresponding to several fasteners (not shown) formed on the inner wall of the outer casing 10, for example, joined by a combination of bolts and nuts (not shown) ) Is formed.

An alignment tool for aligning the connection line of the motor 21 is preferably formed at an end portion of the inner casing 20 of the hot air discharge port 13. Here, the connection line of the motor 21 is preferably connected to the power supply line 100 through the operation control unit 17 of the handle 15.

In the air inlet 11 side end of the inner casing 20, it is preferable that a normal foreign matter preventing member 50 is installed. The foreign substance inflow preventing member 50 prevents foreign substances such as hair from being introduced into the casing when the external air is sucked by the blower fan 23, and generally includes a form of an elastic mesh using synthetic resin.

In the motor support 25, a motor 21 connected to the blower fan 23 to transmit rotational force to the blower fan 23 is supported and installed, and the motor 21 is disposed opposite to the motor support 25. Blowing fan 23 is installed to generate the air volume by rotating the suction by the operation of the outside air. In view of the air flow direction, the motor 21 is preferably installed downstream of the blowing fan 23.

A heat generating member 30 is installed at the hot air discharge port 13 side of the outer casing 10, and the heat generating member 30 converts the hot air flow generated by the blower fan 23 into hot air by heating. Do it. Nichrome heating wire is generally used as the heat generating member 30, but according to the exemplary embodiment, a thermoelectric heating element, a ceramic heater, a halogen lamp heater, or the like may be used.

In general, the noise generated by the hair dryer may be generated when the suction air collides with the blades of the blower fan 23, but many parts of the inner wall of the inner casing 20 have suction air in the inner wall portion of the inner casing 20. It is caused by collision with. The high speed air flow blown by the blowing fan 23 is to generate a heavy noise while hitting the inner wall of the inner casing 20, which is usually made of a hard plastic material.

According to the present invention, the noise caused by the collision appears to be rapidly reduced by locking the inner and outer walls of the inner casing 20. 2 shows an inner casing and its surface structure whose inner and outer walls are locked in the low noise hair dryer 1 according to the present invention.

The flocking treatment, also called an electric hair and an electrodeposition hair, is a process of vertically planting and attaching short fibers (pile, flock) to an adhesive-coated substrate using an electrostatic attraction force by a high-voltage electrostatic field. In the process as described above, after cutting the locking tow (flocking tow) precisely, it is specially treated to be dyed and electrified, and then planted after the adhesive treatment of the object to be locked. The short fiber material used in the flocking treatment is typically nylon, rayon, polyester, and the like, and as adhesives, flexible and water resistant natural rubber, synthetic rubber latex, polyvinyl acetate, polyacrylic acid ester resins are used.

As shown in FIG. 2, the locking surface treated by the process step as described above has the inner casing 20 surface, and an adhesive layer 62 formed thereon at the lowermost layer, and is disposed on the adhesive layer 62. The fibers 64 are generally vertically and densely arranged.

Since the surface treated by the above locking process is soft to the touch and excellent in appearance, it has been applied to decorative products, in particular, clothing, greeting cards, trophies, promotional products, toys, book covers, etc., and acts as an excellent thermal insulator. Therefore, in the automobile field, it has been applied to glove compartment boxes, door moldings and window trims.

In the conventional hair dryer, since a direct collision with the hard plastic surface of the inner casing 20 generates a lot of noise, when the locking process is applied to the inner and outer surfaces of the inner casing 20, it is applied to the blower fan 23. When the high velocity air flow formed impinges on the inner casing 20, the noise is significantly reduced because the dense short fibers of the flocked surface act to cushion the impact.

According to the present invention as described above, by locking the inner and outer surfaces of the inner casing, the noise generated by the high speed air flow introduced from the outside colliding the inner casing is significantly reduced, and the locking surface is also It has an excellent effect with excellent characteristics such as thermal insulation ability, heat resistance, cold resistance, impact resistance, etc., and in actual experiments, the noise was reduced by about 30% than the noise of the inner casing with the plastic surface. .

Claims (1)

An air inlet 11 is formed at one end, and a hot air outlet 13 is formed at the other end, and an outer casing 10 having a handle 15 at the lower end thereof is fixed to the air inlet 11 side. An inner casing 20 provided with a motor 21 and a blowing fan 23 operated by the motor 21, a heat generating member 30 installed at the hot air outlet 13, and the In the conventional hair dryer including the foreign matter inflow prevention member 50 provided on the air inlet 11 side, Low noise hair dryer, characterized in that the inner and outer surfaces of the inner casing 20 is locked.