KR20160096330A - Low noise hair dryer having a transmission - Google Patents

Low noise hair dryer having a transmission Download PDF

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Publication number
KR20160096330A
KR20160096330A KR1020150017824A KR20150017824A KR20160096330A KR 20160096330 A KR20160096330 A KR 20160096330A KR 1020150017824 A KR1020150017824 A KR 1020150017824A KR 20150017824 A KR20150017824 A KR 20150017824A KR 20160096330 A KR20160096330 A KR 20160096330A
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South Korea
Prior art keywords
motor
hair dryer
blowing fan
transmission
housing
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KR1020150017824A
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Korean (ko)
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이영희
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이영희
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Publication of KR20160096330A publication Critical patent/KR20160096330A/en

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands

Abstract

The low noise hair dryer includes a hollow housing having a discharge port, an inlet port, and a handle on the lower side; A heating wire installed inside the discharge port side of the housing to receive electricity to heat the air; A blowing fan installed in the housing for sucking outside air and transferring the outside air to the heat line; A controller provided to control the application of power to the hot wire and the motor; A motor connected to the shaft for rotating the rotor to generate driving power; And a transmission connected between the motor and the blowing fan, for increasing the number of rotations of the motor and transmitting the increased number of rotations to the blowing fan. Although the motor of the hair dryer having the transmission has a rotation speed of 1 / 1.5-1 / 10 times lower than that of the conventional hair dryer having the same wind speed, the fan is rotated at the same speed as the conventional hair dryer So that the noise problem can be solved without lowering the wind speed.

Figure pat00001

Description

[0001] The present invention relates to a low noise hair dryer having a transmission,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low noise hair dryer that reduces vibration and noise generated when a hair dryer is used, More specifically, the present invention relates to a low-noise hair dryer having a transmission for increasing the number of revolutions of the motor by 2 to 10 times and delivering the same to the blowing fan, thereby significantly reducing vibration and noise compared to the conventional hair dryer.

Hair dryers are often used in homes and hairdressers by blowing warm wind on wet hair and drying in a short time. In order to shorten the drying time of the hair, the hair dryer should be capable of discharging a sufficient amount of air to some extent. To increase the air discharge amount, the blower fan installed in the hair dryer should be rotated at least 12,000 rpm.

Hair dryers The biggest problem users feel is the stress they receive from the noise generated during the operation of the hair dryer. In order to solve the noise problem, reducing the wind speed of the hair dryer reduces the noise level. In this case, the drying time becomes longer. Therefore, a new method for reducing noise without reducing the wind speed of the hair dryer needs to be devised.

On the other hand, the noise of the hair dryer is caused by the following two factors. First, there is noise due to the air discharge caused by the air moving fast by the blowing fan rubbing against the inner wall and accessories of the hair dryer main body. Second, there is noise generated when physical and electromagnetic vibration generated when the motor rotor rotates at a high speed is transmitted to the body of the hair dryer.

Among these two noises, the noise caused by the vibration of the motor is between 75 ~ 90dB and the noise generated by the air blowing of the blowing fan is 50 ~ 65dB, so that the noise generated by the vibration of the motor is transmitted by the air blowing fan Is significantly greater than the noise generated. In addition, the vibration of the motor increases in proportion to the number of revolutions of the motor.

The structure of the conventional hair dryer is such that the motor and the blowing fan are connected to one shaft and rotate together as shown in Fig. Hair dryer In order to reduce the stress of the user from the noise, it is necessary to reduce the number of revolutions of the motor. If the number of revolutions of the motor is reduced, the wind speed decreases and the drying performance becomes difficult. Accordingly, in order to solve the noise problem of the conventional hair dryer, it is preferable to change the structure in which the motor and the blowing fan are fixedly connected to one shaft.

The transmission is a device that converts the rotational speed or direction of the drive input shaft connected to the motor or the engine and transmits it to the output shaft. The ratio of the input shaft revolution number to the output shaft revolution number is referred to as a transmission ratio. The transmission changes the transmission ratio according to the change of the speed so as to give the different rotational force required when the automobile or the bicycle moves at a low speed or a high speed to efficiently transmit the power.

When the ratio of the motor rotation speed of the hair dryer to the blowing fan rotation speed is referred to as a speed ratio, the speed ratio of the conventional hair dryer in which the motor and the blowing fan are fixed to one shaft is one. For air delivery required for rapid drying of hair, the blower fan of the hair dryer is rotated at least between 12,000 and 20,000 rpm, and the motor is also rotated between 12,000 and 20,000 rpm. The vibration of such a rapidly rotating motor is the main cause of the noise generated by the hair dryer, and such noise must inevitably occur in a conventional hair dryer in which a device such as a transmission is not provided. In addition, a conventional hair dryer in which the speed ratio is 1 has the disadvantage that power consumption is increased because the motor always rotates at a high speed, and the service life of the motor is short. If a car that is not equipped with a transmission is running at high speed, the number of revolutions of the engine increases, resulting in increased noise, poor fuel economy, and shortened engine life.

A method of ensuring sufficient airflow without significantly increasing the number of revolutions of the motor of the hair dryer is to utilize a transmission capable of converting the rotational force and the number of revolutions of the motor to the blower fan. For example, if a transmission (speed ratio = 4) capable of rotating the blowing fan by increasing the number of revolutions of the motor by four times is used, the blowing fan is rotated at 16,000 rpm with a motor rotating at 4,000 rpm, Can be transmitted. Therefore, compared with a conventional hair dryer in which the motor rotates at 16,000 rpm to discharge the same air volume, the vibration and noise of the hair dryer with the transmission is significantly reduced. The transmission also has an effect of reducing the power consumption of the hair dryer by rotating the blowing fan by effectively utilizing the rotational force of the motor, and reducing the load on the motor, thereby extending service life.

A variety of ideas have been proposed, such as the use of sound-absorbing materials to absorb noise to create a low-noise hair dryer, or a method of covering a motor, which is a main cause of noise generation, with a housing. However, it has been insufficient to provide effective noise reduction measures. The present invention is based on the assumption that the noise generated by a conventional hair dryer is caused by a structural cause of a motor and a blowing fan connected to a single shaft. Thus, a transmission, which is already used in many fields such as daily life and industry, And waste of power consumption. The transmission is able to rotate the blowing fan connected thereto at a high speed despite the motor being driven at a relatively low rotational speed to solve the noise problem without deteriorating the wind speed

Registered patent: 10-1458567 (air volume expanding low noise hair dryer). Registered Patent: 10-1468674 (Hot Air Device with Low Noise Ventilation Module). Registration Practice: 20-0367465 (Quiet hair dryer). U.S. Patent No. 5,875,562 (Hand-held hair dryer with vibration and noise control).

To reduce the noise generated by conventional hair dryers, reducing the air volume / wind speed increases the drying time of the hair. On the other hand, if the air volume / wind speed is increased to shorten the drying time, the noise increases and the user receives more stress. The main cause of the noise generated by the conventional hair dryer is that the vibration of the motor rotating at high speed is amplified by the sound. The present invention solves the problem of noise of a conventional hair dryer in which a motor and a blowing fan are connected to one shaft and rotates by utilizing a transmission capable of increasing the number of revolutions of the motor and delivering the blowing fan. The transmission is able to rotate the blowing fan connected thereto at a high speed despite the motor being driven at a relatively low rotational speed to solve the noise problem without deteriorating the wind speed

A hair dryer according to the present invention includes: a hollow housing having a discharge port formed on a front side thereof, an inlet port formed on a rear side thereof, and a handle provided on a lower side thereof; A heating wire installed inside the housing discharge port side to receive electricity to heat the air; A blowing fan installed in the housing for sucking outside air and for moving the sucked air in the hot line direction; A controller provided on one surface of the housing handle and adapted to control power supply to the hot wire and the motor; A motor mounted inside the housing and connected to the shaft for rotating the rotor to generate driving power; And a transmission connected between the motor and the blowing fan, for transmitting the power of the motor to the blowing fan.

The transmission converts the number of rotations of the motor and transfers the number of rotations to the blowing fan, thereby increasing the energy efficiency of the motor and increasing the number of rotations of the blowing fan more than the number of rotations of the motor. Preferably, the transmission increases the rotational speed of the blowing fan by 1.5 to 10 times the rotational speed of the motor.

When the rotation speed of the blowing fan rotated when the motor makes one rotation is used as the transmission ratio of the transmission, a hair dryer using a transmission having a transmission ratio of 5 can be designed as follows. For hair dryers where the blower fan is to be rotated at a speed of at least 15,000 rpm to produce the desired wind speed (eg 16 m / s), select a motor with a rotational speed of 3,000 rpm, connect the belt between the motor and the blower fan So as to transmit the power.

On the other hand, in a conventional hair dryer, since a motor and a blowing fan are fixedly connected to a single shaft, a motor having a rotation speed of 15,000 rpm should be used to produce a desired wind speed (for example, 16 m / s). Here, when comparing the noise of the hair dryer, the noise generated by the motor with the rotation speed of 15,000 rpm is more than 15 - 20 dB higher than the noise of the motor with 3,000 rpm. That is, the transmission increases the number of revolutions of the motor, which is operated at a relatively low speed, several times and transmits it to the blowing fan, thereby not only providing the desired wind speed but also significantly reducing the noise. In addition, the transmission can effectively transmit the rotational force of the motor to the blower fan, thereby reducing power consumption and reducing the load on the motor, thereby extending service life.

The transmission may employ a method in which a plurality of rotary gears having teeth are meshed with each other to transmit power or a chain is hooked to the teeth of the rotating body to transmit rotational motion. However, in order to reduce noise, A pulley type transmission is preferred.

Accordingly, the transmission of the present invention comprises a motor pulley fixed to the shaft of the motor; A blowing fan pulley fixed to an axis of the blowing fan; And a belt mounted in contact with the motor pulley and the blower fan pulley to transmit the rotational force of the motor to the blower fan. The motor should have a speed between 2,000 - 8,000 rpm and the motor pulley should be between 8 - 27cm. It is also preferable that the material of the belt is rubber, which is the main component, to reduce the vibration generated in the blowing fan and the motor.

The motor of the hair dryer having the transmission is capable of rotating the blowing fan at the same speed as that of the conventional hair dryer even though the rotation speed is 2 to 10 times slower than that of the conventional hair dryer which produces the same wind speed, The noise problem can be solved without degradation.

The low noise hair dryer according to the present invention has the following effects.

First, the present invention provides a hair dryer in which noise is reduced compared to a conventional hair dryer by utilizing a transmission capable of increasing the number of revolutions of the motor and transmitting the blower fan. That is, the motor used in the hair dryer of the present invention rotates at a much lower speed than a motor installed in a conventional hair dryer having the same air volume / wind speed, so that vibration and noise are small.

Second, the transmission can effectively transfer the rotational force of the motor to the blower fan, thereby reducing power consumption and reducing the load on the motor, thereby extending service life.

Third, the transmission is offset by the vibration generated by the motor and the blowing fan rotating at different rotational speeds, resulting in reduced noise.

1 is a cross-sectional view showing a connection structure of a motor 2 and a blowing fan 4 of a conventional hair dryer 1. Fig.
2 is a side cross-sectional view showing the overall configuration of the low-noise hairdryer 10 according to the first embodiment;
3 is a side cross-sectional view showing the overall structure of the low-noise hairdryer 10 'according to the second embodiment.
4 is a cross-sectional view of FIG.

Other features and actions of the present invention will be described in detail with reference to the following examples.

1 is a cross-sectional view showing a connection structure between a motor 2 and a blowing fan 4 of a conventional hair dryer 1. A rotor (not shown) rotates around the shaft 6 and transfers the power to the blowing fan 4 connected to the shaft 6. The motor 6 is driven by a motor. The rotor and the blowing fan 4 are connected to one shaft 6 so that the number of rotations and the direction of rotation are the same.

In the conventional hair dryer 1, the blowing fan 4 and the motor 2 are rotated at least between 12,000 and 20,000 rpm for air delivery required for drying the hair. The vibration of the rapidly rotating motor 2 is a major cause of the noise generated by the hair dryer 1, and the motor 2 always rotates at a high speed, resulting in increased power consumption and short life span.

2, the low-noise hair dryer 10 according to the first embodiment of the present invention is provided with a discharge port 22 at the front side, an inlet port 24 at the rear side, and a handle 26 at the lower side. And a hollow housing (20) provided with a housing (20).

A heat ray 40 is installed inside the housing 20 on the side of the discharge port 22 so that the heat ray 40 heats the air conveyed by the blowing fan 50 and converts it into hot air. Nichrome wire is generally used for the heat ray 40, but a ceramic heater, a halogen heater, or the like can be used. The heat line 40 is fixed by a heat line support and prevents the heat of the heat line 40 on which the insulator 42 is installed from being transmitted to the housing 20 or the outside thereof around the heat line 40.

A blowing fan 50 is mounted on the side of the inlet 24 of the housing 20 for sucking outside air and forming an air flow so that the sucked air is conveyed in the direction of the heat ray 40. A mesh (not shown) is attached to the inlet 24 to prevent foreign material from entering the housing together with the inhaled air.

Inside the housing 20, a motor (not shown) connected to the shaft rotates and a motor 70 for generating driving power is mounted. Between the motor 70 and the blowing fan 50 is connected a transmission 60 for transmitting the driving power of the motor 70 to the blowing fan 50. The transmission (60) converts the rotational force and the rotational speed of the motor (70) and transmits the rotational force and the rotational speed to the blowing fan (50).

The transmission 60 includes a motor pulley 62 fixed to the shaft of the motor 70, a blower fan pulley 64 fixed to the shaft of the blower fan 50 and a motor pulley 62 and a blower fan pulley 64, And a belt 66 mounted to be in contact with the motor 70 to transmit the rotational force of the motor 70 to the blowing fan 50. As shown in Fig. 2, the size of the motor pulley 62 is larger than that of the blower fan pulley 64. Thus, the number of revolutions of the two pulleys rotated by the belt 66 is inversely proportional to the circumferential length. That is, the transmission 60 can increase the rotational speed of the blowing fan 50 to be higher than the rotational speed of the motor 70. The transmission ratio of the transmission 60 is between 1.5 and 10 and the motor pulley 62 has a circumference of 8 to 27 cm Lt; / RTI > The shaft to which the blowing fan 50 and the blowing fan pulley 64 are connected is rotatably connected by a pair of bearings 80 and 81 fixed to a support base (not shown) mounted inside the housing 20. [

On the other hand, the speed ratio of the hair dryer equipped with the motor 2 and the blowing fan 4 shown in Fig. If the motor 2 of the conventional hair dryer 1 is driven at a rotational speed of 15,000 rpm in order to produce a desired wind speed, the hair dryer 10 equipped with the transmission 60 having the transmission ratio of 5, It can rotate at 3,000 rpm to create the same wind speed as a conventional hair dryer. Since the noise level of the hair dryer is proportional to the number of revolutions of the motor, the number of revolutions of the motor 70 can be reduced by applying the transmission 60, and as a result, the noise can be reduced. The motor 70 of the hair dryer 10 to which the transmission 60 is applied is suitable to have a maximum rotation speed between 2,000 and 8,000 rpm in use.

In addition, the main cause of the noise of the hair dryer is that the vibration generated when the motor rotates is transmitted as noise. The vibration is increased in proportion to the number of revolutions and the weight of the rotating body. The motor 2 shown in FIG. 1 has a structure in which a rotor (not shown) and a blowing fan 4 are connected to one shaft 6 , The weight of the rotor and the weight of the blowing fan 4 are added together and rotated at the same speed. The vibration generated around the shaft 6 made of a rigid metal is transmitted to the housing supporting the motor 2 and amplified by noise. In comparison, the motor 70 shown in FIG. 2 has a smaller vibration than the motor 2 shown in FIG. The transmission (60) is provided between the motor (70) rotating at different rotational speeds and the blowing fan (50), so that the vibration generated by the motor (70) and the blowing fan (50) do. Particularly, since the material of the belt 66 is rubber as a main component, the vibration generated in the blowing fan 50 and the motor 70 can be further reduced.

A controller 30 is provided on one side of the handle 26 of the housing 20 so that power is supplied to the heating wire 40 and the motor 70 is controlled. The controller 30 can be operated to select or control the operation of the hair dryer 10, the intensity of the airflow, hot air or cold air.

Referring to FIGS. 3 and 4, the low noise type hair dryer 10 'according to the second embodiment of the present invention has a discharge port 22' formed on the front side and an inlet 24 ', 24 "formed on the rear side thereof And a hollow housing 20 'having a handle 26' on its lower side.

A heat ray 40 'is provided inside the discharge port 22' of the housing 20 ', and the heat ray 40' heats the air conveyed by the air blowing fan 50 ' do. A nichrome wire is generally used for the heat ray 40 ', but a ceramic heater, a halogen heater, or the like may be used. The heat ray 40 'is fixed by a heat ray support (not shown), and the heat of the heat ray 40', which is provided around the heat ray 40 ', is transmitted to the housing 20' .

Between the pair of inlets 24 'and 24' 'provided on the rear side of the housing 20', a blowing fan (not shown) for sucking the outside air and forming an air flow so that the inhaled air is conveyed in the direction of the heat ray 40 ' (Not shown) are attached to the inlets 24 ', 24' 'to prevent foreign objects from entering the housing together with the inhaled air.

Inside the housing 20 ', a motor (not shown) connected to the shaft is rotated to mount a motor 70' for generating driving power. Between the motor 70 'and the blowing fan 50' is connected a transmission 60 'for transmitting the driving power of the motor 70' to the blowing fan 50 '. The transmission 60 'converts the rotational force and the rotational speed of the motor 70' and transmits the rotational force and the rotational speed to the blowing fan 50 '.

The transmission 60 'includes a motor pulley 62' fixed to the shaft of the motor 70 ', a blowing fan pulley 64' fixed to the shaft of the blowing fan 50 ', and a motor pulley 62' And a belt 66 'mounted in contact with the blowing fan pulley 64' and transmitting the rotational force of the motor 70 'to the blowing fan 50'. As shown in FIGS. 3 and 4, the size of the motor pulley 62 'is larger than that of the blower fan pulley 64'. As described above, the two pulleys rotated by the belt 66 'change their revolutions in proportion to the circumferential length. That is, the transmission 60 'can increase the rotational speed of the blowing fan 50' to be higher than the rotational speed of the motor 70 '. The speed ratio of the transmission 60 'is between 1.5 and 10, and the motor pulley 62' has a gear ratio of about 1 / Is preferably between 8 and 27 cm. The shaft to which the blowing fan 50 'and the blowing fan pulley 64' are connected is rotatably supported by a pair of bearings 80 'and 81' fixed to supports (not shown) mounted inside the housing 20 ' .

On the other hand, the speed ratio of the hair dryer equipped with the motor 2 and the blowing fan 4 shown in Fig. If the motor 2 of the conventional hair dryer 1 is driven at a rotational speed of 15,000 rpm to make the desired wind speed, the hair dryer 10 'equipped with the transmission 60' ') Can rotate at 3,000 rpm to create the same wind speed as a conventional hair dryer. Since the noise level of the hair dryer is proportional to the number of revolutions of the motor, the number of revolutions of the motor 70 'can be reduced by applying the transmission 60', and consequently noise can be reduced. The motor 70 'of the hair dryer 10' to which the transmission 60 'is applied is suitable to have a maximum rotation speed between 2,000 and 8,000 rpm in use.

In addition, the main cause of the noise of the hair dryer is that the vibration generated when the motor rotates is transmitted as noise. The vibration is increased in proportion to the number of revolutions and the weight of the rotating body. The motor 2 shown in FIG. 1 has a structure in which a rotor (not shown) and a blowing fan 4 are connected to one shaft 6 , The weight of the rotor and the weight of the blowing fan 4 are added together and rotated at the same speed. The vibration generated around the shaft 6 made of a rigid metal is transmitted to the housing supporting the motor 2 and amplified by noise. In comparison, the motor 70 'shown in Figs. 3 and 4 has a smaller vibration than the motor 2 shown in Fig. There is a transmission 60 'between the motor 70' rotating at different rotational speeds and the blowing fan 50 'to cancel the vibrations generated by the motor 70' and the blowing fan 50 ' And the noise is reduced. In particular, the material of the belt 66 'is rubber as a main component, and the vibration generated in the blowing fan 50' and the motor 70 'can be further reduced.

A controller 30 'is provided on one side of the handle 26' of the housing 20 'so that power is supplied to the hot wire 40' and the motor 70 'is controlled. The controller 30 'can be operated to select or control the operation of the hair dryer 10', the intensity of the airflow, hot air or cold air.

The use of the low noise hair dryer 10, 10 'according to the present invention having such a configuration will be described with reference to FIGS. First, when the user operates the controller 30 or 30 'to apply power, power is supplied to the motors 70 and 70' and the heating wires 40 and 40 '. As the motors 70 and 70 'are driven, the motor pulleys 62 and 62' rotate and the power is transmitted to the blowing fan pulleys 64 and 64 'through the belts 66 and 66' , 50 'increase by several times the number of revolutions of the motors 70, 70'. External air is introduced through the inlets 24, 24 ', and 24' as the blowing fans 50 and 50 'are driven and the air introduced into the housings 20 and 20' The heat rays 40 and 40 'are rapidly heated by the power supply, and the air moved around the heat rays 40 and 40' is quickly warmed up by the airflow formed by the heat rays 40 and 40 ' And the heated air is supplied to the outside through the discharge ports 22 and 22 'to dry the hair.

The noise reducing hair dryer 10 and 10 'of the present invention described above can be applied to the transmissions 60 and 60' which can increase the rotation speed of the motors 70 and 70 'and transmit them to the blowing fans 50 and 50' The noise generated during operation can be reduced by 15 to 20 dB or more compared to a conventional hair dryer without lowering the wind speed. In addition, the rotational force of the motor is efficiently transmitted to the blowing fan by the transmissions 60 and 60 ', thereby reducing power consumption and reducing the load on the motor, resulting in a long service life.

The scope of the present invention is not limited to the above-described embodiments, and various changes and modifications may be made by those skilled in the art. Accordingly, the invention is limited only by the following claims.

10, 10 ': Hair dryer 20, 20': Housing
22, 22 ': outlet 24, 24', 24 ": inlet
26, 26 ': handle 30, 30': controller
40, 40 ': heat line 42, 42': insulation material
50, 50 ': blower fan 60, 60': transmission
62, 62 ': motor pulley 64, 64': blower fan pulley
66, 66 ': belt 70, 70': motor
80, 80 ', 81, 81': Bearings

Claims (8)

A hollow housing having a discharge port formed on a front side thereof, an inlet port formed on a rear side thereof, and a handle provided on a lower side thereof; A heating wire installed inside the discharge port side of the housing to receive electricity to heat the air; A blowing fan installed in the housing to suck outside air and to transfer the sucked air to the heat line; A controller provided on one side of the handle of the housing, the controller being configured to control power supply to the heating wire and the motor; A motor mounted inside the housing and connected to the shaft to rotate the rotor to generate driving power; and a transmission connected between the motor and the blowing fan, for transmitting the power of the motor to the blowing fan,
Wherein the transmission converts the rotation number of the motor and transfers the rotation number to the blowing fan so as to increase the rotation number of the blowing fan more than the rotation number of the motor. The low noise hair dryer according to claim 1, wherein the transmission increases the rotation speed of the blowing fan by 1.5 to 10 times the rotation speed of the motor. The low noise hair dryer as claimed in claim 1, wherein vibration generated by the motor and the blower fan, the transmission rotating at different rotational speeds, is canceled to thereby reduce noise. 2. The hybrid vehicle of claim 1, further comprising: a motor pulley having a transmission fixed to a shaft of the motor; A blower fan pulley fixed to a shaft of the blower fan, and a belt mounted in contact with the motor pulley and the blower fan pulley to transmit rotational force of the motor to the blower fan. 2. The low noise hair dryer of claim 1, wherein the motor has a maximum rotational speed between 2,000 and 8,000 rpm when the hair dryer is used. The low noise hair dryer according to claim 4, wherein the periphery of the motor pulley is between 8 and 27 cm. 5. The low noise hair dryer according to claim 4, wherein the belt is made of rubber as a main component. The low noise hair dryer according to claim 4, wherein the shaft to which the blowing fan and the blowing fan pulley are connected is rotatably connected by a pair of bearings fixed to a support mounted on the housing.
KR1020150017824A 2015-02-05 2015-02-05 Low noise hair dryer having a transmission KR20160096330A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020093679A1 (en) * 2018-11-07 2020-05-14 舒可士（深圳）科技有限公司 Control system for hair dryer
EP3651610A4 (en) * 2017-07-14 2021-08-11 Spectrum Brands, Inc. Hair dryer
WO2021230480A1 (en) 2020-05-11 2021-11-18 엘지전자 주식회사 Hairdryer
KR20210137751A (en) 2020-05-11 2021-11-18 엘지전자 주식회사 Hair dryer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200367465Y1 (en) 2004-07-22 2004-11-10 김유목 Low noise hair-dryer
KR101458567B1 (en) 2013-06-04 2014-11-07 강소대 High Flowrate Type Low Noise Hair Drier
KR101468674B1 (en) 2008-07-18 2014-12-04 탁승호 Low noise blower module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200367465Y1 (en) 2004-07-22 2004-11-10 김유목 Low noise hair-dryer
KR101468674B1 (en) 2008-07-18 2014-12-04 탁승호 Low noise blower module
KR101458567B1 (en) 2013-06-04 2014-11-07 강소대 High Flowrate Type Low Noise Hair Drier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
미국등록특허: 5,875,562 (Hand-held hair dryer with vibration and noise control).

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3651610A4 (en) * 2017-07-14 2021-08-11 Spectrum Brands, Inc. Hair dryer
US11311090B2 (en) 2017-07-14 2022-04-26 Spectrum Brands, Inc. Hair dryer
WO2020093679A1 (en) * 2018-11-07 2020-05-14 舒可士（深圳）科技有限公司 Control system for hair dryer
WO2021230480A1 (en) 2020-05-11 2021-11-18 엘지전자 주식회사 Hairdryer
KR20210137751A (en) 2020-05-11 2021-11-18 엘지전자 주식회사 Hair dryer
KR20210137750A (en) 2020-05-11 2021-11-18 엘지전자 주식회사 Hair dryer

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