EP3563717A1 - Hair dryer and electromagnetic wave blocking heating member applied to hair dryer - Google Patents

Hair dryer and electromagnetic wave blocking heating member applied to hair dryer Download PDF

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Publication number
EP3563717A1
EP3563717A1 EP17886392.4A EP17886392A EP3563717A1 EP 3563717 A1 EP3563717 A1 EP 3563717A1 EP 17886392 A EP17886392 A EP 17886392A EP 3563717 A1 EP3563717 A1 EP 3563717A1
Authority
EP
European Patent Office
Prior art keywords
wind
heat dissipating
housing
hair
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17886392.4A
Other languages
German (de)
English (en)
French (fr)
Inventor
Min Su Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soonsoobaram Co Ltd
Original Assignee
Soonsoobaram Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Soonsoobaram Co Ltd filed Critical Soonsoobaram Co Ltd
Publication of EP3563717A1 publication Critical patent/EP3563717A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/10—Temperature; Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
    • 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
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/15—Temperature

Definitions

  • the present invention relates to a hair dryer and a heating member blocking electromagnetic waves applied to the hair dryer.
  • a hair dryer is a device drying wet hair on the head or the like. When power is applied from an external source, the hair dryer draws ambient air, creates a flow of air therein, and discharges wind therefrom.
  • the wind discharged from the hair dryer may be cold wind or hot wind, depending on whether or not a coil heater provided therein is operated.
  • the hair dryer generally includes: a housing having an air flow passage defined therein; a blower fan creating wind in the housing by drawing ambient air and discharging the wind from the housing; a motor unit rotating the blower fan; a heater disposed in the air flow passage to heat the wind by transferring heat to the wind as required.
  • the efficiency of wind with respect to drawn air is not high, because air drawn from the outside is dispersed due to the absence of a wind guide within the housing.
  • the hair dryer must be used for an extended period of time to dry an inner portion of the hair adjacent to the human body, e.g. the scalp, which is problematic.
  • a portion of hair may be excessively dried, leading to hair damage in which dried hair is cracked.
  • a heater in the hair dryer, a heater generates heat using electric resistance of a Nichrome wire containing nickel (Ni), which is exposed without a cover, by applying electric current to the Nichrome wire.
  • Ni nickel
  • the heat, generated by the heater is transferred to the wind, thereby producing hot wind.
  • a heat-generating method emits electromagnetic waves and fine dust. When such electromagnetic waves or fine dust arrive at a portion of the human body, as well as hair on the body portion, a harmful effect to the human body may be caused. This issue has been widely discussed.
  • patent documents such as Korean Patent No. 10-1155135 (dated June 4, 2012 ; titled “ LED ATTACHABLE / DETACHABLE HAIR DRYER “), Korean Patent No. 10-0998333 (dated November 29, 2010 ; titled “ HAIR DRYER “), and Korean Registered Utility Model No. 20-0224653 (dated March 9, 2001 ; " HAIR DRYER BLOCKING ELECTROMAGNETIC WAVES "), may be suggested.
  • IR radiation cannot reach a portion of hair adjacent to the scalp when thick and wet hair is tangled.
  • the time taken for drying the hair is not substantially reduced, which is problematic.
  • a shield sheet is attached to an inner portion of a hair dryer in order to block harmful electromagnetic waves radiated from the inside of the hair dryer.
  • EMI electromagnetic interference
  • an object of the present invention is to provide a hair dryer able to produce wind, the strength and flow rate of which are improved, so as to dry hair in a short period of time.
  • a hair dryer may include: a housing including an inlet provided on an open top portion thereof, such that ambient air is drawn therethrough, an outlet through which wind created by accelerating the air drawn through the inlet is discharged; an air blower located below the inlet to draw the ambient air into the housing through the inlet; a wind guide allowing the air drawn by the air blower to flow within the housing so as to accelerate the air, so that the wind is created, and discharging the wind toward the outlet; and a rotor unit connected to the air blower to rotate the air blower.
  • the wind guide may include: an intake top portion provided in a bottom surface to be more adjacent to the air blower than remaining portions of a bottom surface of the wind guide; a discharge bottom portion connected to the intake top portion, with a height thereof being gradually lowered, the discharge bottom portion being gradually spaced away from the air blower; and a curved guide shaped as a curved surface connecting circumferential portions of the intake top portion and discharge bottom portion, so as to concentrate the wind created from the drawn air that is accelerated while being guided from the intake top portion to the discharge bottom portion.
  • a heater used in a hair dryer including: a housing including an inlet provided on an open top portion thereof, such that ambient air is drawn therethrough, an outlet through which wind created by accelerating the air drawn through the inlet is discharged; an air blower located below the inlet to draw the ambient air into the housing through the inlet; a wind guide allowing the air drawn by the air blower to flow within the housing so as to accelerate the air, so that the wind is created, and discharging the wind toward the outlet; and a rotor unit connected to the air blower to rotate the air blower, wherein the wind guide includes: an intake top portion provided in a bottom surface to be more adjacent to the air blower than remaining portions of a bottom surface of the wind guide; a discharge bottom portion connected to the intake top portion, with a height thereof being gradually lowered, the discharge bottom portion being gradually spaced away from the air blower; and a curved guide shaped as a curved surface connecting circumferential portions of the intake top portion and discharge bottom portion
  • the heater may be able to increase a temperature of the wind as required.
  • the heater may include: an electric heat generator generating heat in response to electric energy applied from an external source; an upper heat dissipating member mounted on a top portion of the electric heat generator to dissipate heat generated by the heat generator to an upper space; a lower heat dissipating member mounted on a bottom of the electric heat generator to dissipate heat generated by the heat generator to a lower space; and heater connectors located on both sides of the electric heat generator to connect the electric heat generator, the upper heat dissipating member, and the lower heat dissipating member to the housing.
  • the electric heat generator may be located in an inner space surrounded by the upper heat dissipating member, the lower heat dissipating member, and the heater connectors, such that electromagnetic waves of the electric heat generator are blocked.
  • the hair dryer since the hair dryer includes the housing, the air blower, the wind guide, and the rotor unit, air drawn from the outside is guided in a predetermined direction while maintaining a concentrated state instead of being dispersed. In this manner, the drawn air is converted into accelerated wind, which is then discharged. The wind strength and flow rate performance of the hair dryer are improved, so that hair can be dried in a short period of time.
  • the heater includes the electric heat generator, the upper heat dissipating member, the lower heat dissipating member, and the heater connectors.
  • the electric heat generator is located in an inner space defined by the upper heat dissipating member, the lower heat dissipating member, and the heater connectors, so that fine dust and electromagnetic waves generated by the electric heat generator can be prevented from exiting outwards.
  • FIG. 1 is a perspective view illustrating a hair dryer according to a first embodiment of the invention
  • FIG. 2 is a perspective view illustrating internal components of the hair dryer according to the first embodiment of the invention
  • FIG. 3 is an exploded view illustrating the hair dryer according to the first embodiment of the invention
  • FIG. 4 is a perspective view illustrating the air blower, the wind guide, and the rotor unit of the hair dryer according to the first embodiment of the invention
  • FIG. 5 is an exploded view of the air blower, the wind guide, and the rotor unit illustrated in FIG. 3
  • FIG. 6 is a rear view of the air blower, the wind guide, and the rotor unit illustrated in FIG. 3
  • FIG. 7 is a top-plan view of the air blower and the wind guide illustrated in FIG. 4
  • FIG. 8 is an exploded view of the rotor unit of the hair dryer according to the first embodiment of the invention
  • FIG. 9 is a perspective view illustrating the heater of the hair dryer according to the first embodiment of the invention
  • FIG. 10 is an exploded view of the heater illustrated in FIG. 9
  • FIG. 11 is an enlarged view of portion A in FIG. 10 .
  • the hair dryer 100 is configured to dry hair, and includes a housing 111 and 115, an air blower 120, a wind guide 160, and a rotor unit 140.
  • hair used herein means hair protruding from the skin of the human body.
  • hair in the hair dryer 100 refers to the hair of the head of the human from among various types of hair, this is merely illustrative, and the term is not limited to the hair of the human.
  • the hair dryer 100 further includes a heater 150, a temperature sensor 105, a function selector 173, and a controller 176.
  • the housing 111 and 115 include an inlet 114 and 117 provided on an open top portion thereof, such that ambient air is drawn therethrough, an outlet 182 and 184 through which wind, created by accelerating the air drawn through the inlet 114 and 117, is discharged.
  • the housing 111 and 115 further includes backflow prevention protrusions 181 and 183.
  • the housing 111 and 115 is made of a synthetic resin, such as plastic, and is comprised of a first housing section 111 and a second housing section 115 provided separately.
  • a hollow inner space is defined, such that components can be accommodated in the inner space.
  • the first housing section 111 includes: a first handle portion 112 extending a predetermined length, allowing a user to hold the handle portion 112 by a hand to adjust the position and direction thereof; a first body 113 having a wind flow passage defined therein; a first inlet-forming hole 114 provided as an open area in a portion of one end portion of the first body 113; and a first outlet-forming hole 182 provided as an open area in a portion of the other end portion of the first body 113.
  • the second housing section 115 includes: a second handle portion 116 extending a predetermined length, allowing a user to hold the handle portion 116 by a hand to adjust the position and direction thereof; a second body 118 having a wind flow passage defined therein; a second inlet-forming hole 117 provided as an open area in a portion of one end portion of the first body 113; and a second outlet-forming hole 184 provided as an open area in a portion of the other end portion of the first body 113.
  • first housing section 111 and the second housing section 115 are fitted to each other, an open portion of the first outlet-forming hole 182 and an open portion of the second outlet-forming hole 184 are connected to each other in a corresponding manner, thereby forming a circular open area serving as an exit.
  • the open area provided as above forms the outlet 182 and 184.
  • the inlet 114 and 117 and the outlet 182 and 184 are located to be perpendicular to each other. Then, the air drawn while flowing downwards in the vertical direction forms rotating wind within the housing 111 and 115. Since the wind created in this manner additionally has rotating force due to the rotation, the rotating wind may be stronger than wind discharged after having been drawn in a horizontal direction, created by a typical hair dryer.
  • the inlet 114 and 117 is provided a hollow circular portion, with the inner surface of the inlet 114 and 117 having a shape conforming to that of the circumferential portion of the wind guide 160. Accordingly, this configuration can prevent wind created by the wind guide 160 from leaking through a space between the inlet 114 and 117 and the wind guide 160.
  • the inlet 114 and 117 has a greater size than the other components of the housing 111 and 115, such that a greater amount of air can be drawn.
  • the first handle 112 and the second handle portion 116, provided below the inlet 114 and 117, have a smaller size than the inlet 114 and 117, but are extended in length, such that the user can easily hold the handle by a hand.
  • Reference numeral 10 indicates a power cable connected to an external power source to supply electricity to the hair dryer 100.
  • Reference numeral 102 is an impurity filter provided in the form of a net to filter impurities so that, when air is drawn into the hair dryer 100, impurities do not enter along with the air.
  • reference numeral 101 is a hood connected to the end portion of the outlet 182 and 184 of the housing 111 and 115 to concentrate wind and form a passage of the wind, so that the wind can be concentrated in a specific position while being discharged through the outlet 182 and 184.
  • the first handle portion 112 and the first body 113, as well as the second handle portion 116 and the second body 118, are provided as integral portions.
  • these components may be provided as foldable components that can be folded while being separated as two portions in order to minimize a storage space thereof.
  • the backflow prevention protrusions 181 and 183 protrude a predetermined length within the housing 111 and 115 to allow the wind, created by the wind guide 160, to flow in the direction of the outlet 182 and 184, but prevent the wind from flowing backwards or entering in the direction of the wind guide 160 from the outlet 182 and 184.
  • the backflow prevention protrusions 181 and 183 include a first backflow prevention protrusion 181 and a second backflow prevention protrusion 183.
  • the first backflow prevention protrusion 181 is located on a portion of the first body 113 to be more adjacent to the air blower 120, and protrudes from the top surface of the first body 113 in a vertical direction, extending to a height spaced apart from the bottom surface of the first housing section 111 by a predetermined distance.
  • the second backflow prevention protrusion 183 is located on a portion of the second body 118 to be more adjacent to the air blower 120, and protrudes from the top surface of the second body 118 in a vertical direction, extending to a height spaced apart from the bottom surface of the second housing section 115 by a predetermined distance.
  • the wind When the wind, created by the acceleration of the air during passing by the wind guide 160, has passed from the wind guide 160, the wind is dispersed within the first body 113 and the second body 118.
  • the dispersed wind may collide with the inner wall of the first body 113 and the second body 118. Then, the wind may re-enter the wind guide 160 while flowing backwards.
  • the first backflow prevention protrusion 181 and the second backflow prevention protrusion 183 provide walls within the first housing section 111 and the second housing section 115, so as to prevent the wind from reentering the wind guide 160 while flowing backwards.
  • the air blower 120 is located below the inlet 114 and 117 to draw ambient air into the housing 111 and 115 through the inlet 114 and 117.
  • the air blower 120 includes a rotor body 121 rotating about the axis of rotation and a plurality of rotor blades 122 provided on circumferential portions of the rotor body 121, with rotor blades 122 of the plurality of rotor blades 122 being spaced apart from each other at certain distances.
  • the rotor body 121 is provided in the form of a hollow cylinder, and the rotor unit 140, which will be described later, is inserted into the rotor body 121.
  • the plurality of rotor blades 122 is provided as plates each having a predetermined area, the plates radially extending from the circumferential portions of the rotor body 121.
  • the rotor body 121 and the plurality of rotor blades 122 are rotated by the rotor unit 140, allowing ambient air to be drawn into the housing 111 and 115.
  • an intake hole 123 extends through the upper central portion, such that a portion of the air drawn into the inlet is introduced therethrough.
  • a discharge hole 124 is provided in the rotor body 121 to communicate with the intake hole 123, and extends in a direction in which the outlet 182 and 184 is formed, such that a portion of the air that has passed through the intake hole 123 is discharged therethrough.
  • the intake hole 123 extends through the central portion of the rotor body 121 to a predetermined depth in the vertical direction.
  • the discharge hole 124 communicates with the intake hole 123 while being perpendicularly bent from the intake hole 123.
  • the discharge hole 124 extends in the same direction in which the outlet 182 and 184 is formed.
  • the diameter of either the intake hole 123 or the discharge hole 124 is set to be smaller than the size of the air blower 120, such that a vortex air flow is created when the air portion drawn into the intake hole 123 is discharged through the discharge hole 124.
  • the vortex air flow pushes the wind created by the wind guide 160, which will be described later, thereby increasing the speed of the wind. Accordingly, it is possible to increase the efficiency of the hair dryer 100 while reducing the load of the air blower 120.
  • the plurality of rotor blades 122 respectively has a recess 125 in a portion of the outermost surface thereof.
  • the recess 125 is depressed with respect to the other portions of the outermost surface in order to increase the flow rate of the wind pushed by the plurality of rotor blades 122.
  • the plurality of rotor blades 122 has increased strength due to the recess 125 formed in substantially the central portion of the outermost portion of each rotor blade 122. Due to this configuration, the plurality of rotor blades 122 can firmly support itself while pushing the wind, and vibration and noise produced during the rotation of the plurality of rotor blades 122 can be reduced.
  • the wind guide 160 includes an intake higher-surface portion 162, a discharge bottom portion 163, and a curved guide 161.
  • the intake higher-surface portion 162 is a portion of the bottom surface of the wind guide 160, which is more adjacent to the air blower 120 than the remaining portions of the bottom surface.
  • the discharge bottom portion 163 is connected to the intake higher-surface portion 162, with the height thereof being gradually lowered, and is gradually spaced away from the air blower 120.
  • the curved guide 161 has the shape of a curved surface connecting the circumferential portions of the intake higher-surface portion 162 and discharge bottom portion 163, so as to concentrate the wind created from the drawn air that is accelerated while being guided from the intake higher-surface portion 162 to the discharge bottom portion 163.
  • the width between the intake higher-surface portion 162 and the discharge bottom portion 163 is set to be narrower than the diameter of the wind guide 160, corresponding to the maximum-width thereof, such that the wind is not dispersed before being discharged from the wind guide 160 after having been created.
  • the intake higher-surface portion 162 is located to the left, and the discharge bottom portion 163 is located to the right.
  • the height of the discharge bottom portion 163 is gradually lowered with respect to the height of the intake higher-surface portion 162. Accordingly, the inner surface (of the wind guide 160) is inclined like an inclined surface of a screw.
  • a space between the air blower 120 and the discharge bottom portion 163 gradually increases in a space defined between the air blower 120 and the intake higher-surface portion 162, in the direction from the intake higher-surface portion 162 to the discharge bottom portion 163.
  • the wind created by the rotation and the acceleration gradually accumulates, such that the amount of the wind gradually increases, in the direction from the intake higher-surface portion 162 to the discharge bottom portion 163.
  • the wind having a maximized amount is discharged through the discharge bottom portion 163, so that the flow rate of the hair dryer 100 is increased.
  • the curved guide 161 is a sidewall having a predetermined height, extending along the curved surfaces of the intake higher-surface portion 162 and the discharge bottom portion 163, so as to prevent the rotating wind from being dispersed.
  • the overall shape of the wind guide 160 is similar to that of a bowl.
  • Reference numeral 164 is a circular wind guide through-hole extending through the central portion of the curved guide 161, such that the rotor unit 140 is inserted into the wind guide through-hole 164 to be connected to the air blower 120.
  • Reference numeral 165 is a wind guide holder to which the rotor unit 140 is connected.
  • the wind guide holder 165 fixes the rotor unit 140, the wind guide 160, and the housing 111 and 115 connected to each other.
  • Reference numeral 166 is a wall provided on a bottom portion of the intake higher-surface portion 162 in order to prevent a portion of the concentrated and accumulated wind from moving backwards to the intake higher-surface portion 162 due to the vortex flow when the wind is discharged from the discharge bottom portion 163.
  • the wind guide 160 further includes a boundary portion 167 by which the curved guide 161 is connected to the inner surface extending from the intake higher-surface portion 162 to the discharge bottom portion 163.
  • the intake higher-surface portion 162 and the discharge bottom portion 163 are provided as a connected curved surface surrounding the wind guide through-hole 164, with the width gradually decreasing in the direction from the intake higher-surface portion 162 to the discharge bottom portion 163.
  • the curved guide 161 is shaped as a curved surface surrounding the intake higher-surface portion 162 and the discharge bottom portion 163, with the wind guide through-hole 164 being located in the central portion.
  • the curved surface of the curved guide 161 gradually widens as extending from a portion connected to the intake higher-surface portion 162 to a portion connected to the discharge bottom portion 163.
  • the boundary portion 167 is shaped as a circular portion extending around the center of the wind guide through-hole 164.
  • the boundary portion 167 gradually approaches the wind guide through-hole 164 in the direction from the intake higher-surface portion 162 to the discharge bottom portion 163.
  • One end portion of the boundary portion 167 is in the same direction as the discharging direction of the discharge bottom portion 163.
  • the area between the boundary portion 167 and the intake higher-surface portion 162 is formed relatively wide, such that a large amount of air can be drawn therethrough.
  • the space between the boundary portion and the discharge bottom portion 162 is formed relatively narrow, such that the movement of the air can be accelerated, so that the speed of the wind can be further relatively increased when the wind is created.
  • the boundary portion 167 can guide the wind so that the accelerated wind can smoothly move toward the outlet 182 and 184.
  • the accelerated wind is created in the space between the wind guide 160 and the air blower 120, since the wind guide 160 is located below the air blower 120. According to this configuration, it is possible to increase the flow rate of the wind while reducing the wind-creating space, compared to a related-art hair dryer in which the wind is created in a side space of a blower fan.
  • the air blower 120 and the wind guide 160 are applied to the hair dryer 100, this is merely illustrative, and the air blower 120 and the wind guide 160 may be used in an air purifier, a humidifier, a ventilator, etc.
  • the rotor unit 140 is a structure connected to the air blower 120 to rotate the air blower 120.
  • the rotor unit 140 includes a rotor 141 rotating the air blower 120 and a rotor housing 143 accommodating and protecting the rotor 141.
  • the rotor unit 140 further includes a rotor noise reducing member 142 disposed between the rotor housing 143 and the rotor 141.
  • the rotor housing 143 is made of a Permalloy to prevent electromagnetic waves generated by the rotor 141 from exiting.
  • the Permalloy is an alloy of nickel (Ni) and iron (Fe), having a significantly high level of permeability.
  • the high level of permeability may increase absorption loss, thereby providing a shield to block electromagnetic waves.
  • the rotor 141 is directly connected to the air blower 120 to rotate the air blower 120, and may be implemented as an electric motor.
  • the rotor noise reducing member 142 is made of a metal, such as aluminum (Al) or stainless steel, and is in the shape of a plate having a predetermined area to surround the rotor 141 in the circumferential direction.
  • the rotor noise reducing member 142 may block noise produced during rotation of the rotor 141, so that the noise does not spread outwards.
  • the heater 150 is disposed on a path along which the wind blows, and is able to increase the temperature of the wind as required.
  • the wind is heated by the heater 150, thereby generating hot wind.
  • the heater 150 includes an electric heat generator 151 generating heat in response to electric energy applied from an external source, an upper heat dissipating member 145 mounted on the top portion of the electric heat generator 151 to dissipate heat generated by the heat generator 151 to an upper space, a lower heat dissipating member 155 mounted on the bottom of the electric heat generator 151 to dissipate heat generated by the heat generator 151 to a lower space, and heater connectors 152 located on both sides of the electric heat generator 151 to connect the electric heat generator 151, the upper heat dissipating member 145, and the lower heat dissipating member 155 to the housing 111 and 115.
  • the electric heat generator 151 generates heat in response to electric power supplied from an external source.
  • the electric heat generator 151 may be implemented as an electric heater, such as a positive temperature coefficient (PTC) heater, so as to prevent production of fine dust in the electric heat generator 151.
  • PTC positive temperature coefficient
  • Reference numeral 185 indicates power connecting lines through which electric power is supplied from an external source.
  • the upper heat dissipating member 145 includes an upper heat dissipating member body 146 covering the top portion of the electric heat generator 151 and a plurality of upper heat dissipating fins 147 extending upward from the body of the upper heat dissipating member 145 to predetermined lengths in the vertical direction.
  • each of the upper heat dissipating fins 147 has an upper bent protrusion 148 provided on an outer end portion thereof.
  • the upper bent protrusion 148 is bent with respect to the length of the upper heat dissipating fin 147 to a predetermined angle, and is in contact with a portion of an adjacent upper heat dissipating fin 147. Accordingly, the upper bent protrusions 148 may maintain the distances between the adjacent upper heat dissipating fins 147 and increase the strength of the upper heat dissipating fins 147, thereby preventing the vibration of the upper heat dissipating fins 147.
  • the lower heat dissipating member 155 includes a lower heat dissipating member body 156 covering the bottom of the electric heat generator 151 and a plurality of lower heat dissipating fins 157 extending downward from the lower heat dissipating member body 156 to predetermined lengths in the vertical direction.
  • each of the lower heat dissipating fins 157 has a lower bent protrusion 158 provided on an outer end portion thereof.
  • the lower bent protrusion 158 is bent with respect to the length of the lower heat dissipating fin 157 to a predetermined angle, and is in contact with a portion of an adjacent lower heat dissipating fin 157. Accordingly, the lower bent protrusions 158 may maintain the distances between the adjacent lower heat dissipating fins 157 and increase the strength of the lower heat dissipating fins 157, thereby preventing the vibration of the lower heat dissipating fins 157.
  • the heater connectors 152 are connected to the upper heat dissipating member 145 and the lower heat dissipating member 155, on both sides of the electric heat generator 151, to cover both side surfaces of the electric heat generator 151 and connect the electric heat generator 151, the upper heat dissipating member 145, and the lower heat dissipating member 155 to the housing 111 and 115.
  • each of the heater connectors 152 has a plurality of connecting projections 186 extending in the direction of the path of the wind to be spaced apart from each other.
  • the connecting projections 186 may be fitted into conforming connecting grooves (not shown) provided in the inner surfaces of the housing 111 and 115, such that the heater connectors 152 can be fixed to the housing 111 and 115.
  • the electric heat generator 151 electromagnetic waves are relatively blocked, compared to the case of a coil-shaped heat generator of the related art including a Nichrome wire having high electrical resistance.
  • the electric heat generator 151 is located in the inner space surrounded by the upper heat dissipating member 145, the lower heat dissipating member 155, and the heater connectors 152, the electromagnetic waves of the electric heat generator 151 can be double-blocked.
  • the electric heat generator 151 is surrounded by the upper heat dissipating member 145, the lower heat dissipating member 155, and the heater connectors 152, the discharge of fine dust, which would otherwise be produced from the related-art coil-shaped heat generator including a Nichrome wire, can be double-prevented.
  • the temperature sensor 105 is disposed adjacent to the outlet 182 and 184 to detect the temperature of the wind discharged through the outlet 182 and 184. According to the present embodiment, the temperature sensor 105 may be provided in contact with the inner surface of the housing 111 and 115 to detect the temperature of the wind in the space that has passed through the heater 150 directly before the wind is discharged through the outlet 182 and 184.
  • the function selector 173 includes a wind strength adjusting and selecting means for selecting the adjustment of the strength of the wind discharged through the outlet 182 and 184, a temperature adjusting and selecting means for selecting the adjustment of the temperature of the wind discharged through the outlet 182 and 184, and a time setting and selecting means for selecting a time adjustment such that an operation is performed for a predetermined time.
  • the wind strength adjusting and selecting means, the temperature adjusting and selecting means, and the time setting and selecting means are provided with buttons 187, respectively.
  • an instruction is transferred to the heater 150 by the controller 176. Then, the amount of heat generated by the heater 150 can be adjusted, so that the temperature of the wind discharged through the outlet 182 and 184 can be adjusted.
  • a corresponding instruction is transferred to the controller 176.
  • the controller 176 can cut off the supply of power after a predetermined time, so that the hair dryer 100 can operate for the predetermined time.
  • the button 187 of the function selector 173 may be, for example, a push button or a touch button protruding from the housing 111 and 115.
  • the function selector 173 further includes a display 188 displaying set values so that the user can easily check the values set using the buttons 187.
  • the controller 176 controls the air blower 120 and the heater 150 according to values previously selected by the function selector 173.
  • the controller 176 includes a control configuration 177 including electronic components and a controller housing 178 having a hollow space defined therein to accommodate and protect the control configuration 177 therein.
  • the controller housing 178 is made of a Permalloy, as described above, to prevent electromagnetic waves generated by the control configuration 177 from exiting the controller housing 178.
  • a housing noise reducing member 179 is further provided on the inner surface of the controller housing 178.
  • the housing noise reducing member 179 is made of a metal, such as aluminum (Al) or stainless steel, and is provided as a plate having a predetermined area to cover the inner surface of the controller housing 178. Accordingly, noise produced by the control configuration 177 can be prevented from spreading outwards.
  • both the rotor housing 143 and the controller housing 178 are made of a Permalloy, this is merely illustrative, and only one of the rotor housing 143 and the controller housing 178 may be made of a Permalloy to block electromagnetic waves.
  • the rotor unit 140 and the controller 176 include the rotor noise reducing member 142 and the housing noise reducing member 179, respectively, this is merely illustrative, and only one of the rotor noise reducing member 142 and the housing noise reducing member 179 may include the noise reducing member 142 or 179 therein to prevent noise, generated by the rotor 141 or the control configuration 177, from spreading outwards.
  • the user connects the power cable 10 of the hair dryer 100 to an external power source, allowing electric power from the external power source to be applied to the hair dryer 100.
  • the rotor unit 140 rotates and the air blower 120, connected to the rotating shaft of the rotor unit 140, rotates along with the rotor unit 140, so that ambient air is drawn into the hair dryer 100.
  • the movement of the air is accelerated, thereby creating wind.
  • the space between the air blower 120 and the intake higher-surface portion 162 the space defined between the air blower 120 and the discharge bottom portion 163 is gradually increased.
  • the wind created due to the rotation and the acceleration gradually accumulates, such that the amount of the wind gradually increases, in the direction from the intake higher-surface portion 162 to the discharge bottom portion 163.
  • the wind having a maximized amount is discharged through the discharge bottom portion 163.
  • the wind discharged from the discharge bottom portion 163, moves to the outlet 182 and 184 by flowing through the inside of the housing 111 and 115. Due to the shape of the hood 101 connected to the outlet 182 and 184, the wind may be concentrated to a specific position of the hair to dry the hair.
  • the electric heat generator 151 of the heater 150 disposed in the path along which the wind flows, generates heat. Then, the heat is discharged through the upper heat dissipating member 145 and the lower heat dissipating member 155 to be transferred to the wind, so that hot wind can be discharged.
  • the controller 176 controls the hair dryer 100 according to the user's selection, so that the hair dryer 100 operates under the control of the controller 176.
  • the hair dryer 100 since the hair dryer 100 includes the housing 111 and 115, the air blower 120, the wind guide 160, and the rotor unit 140, air drawn from the outside is guided in a predetermined direction while maintaining a concentrated state instead of being dispersed. In this manner, the drawn air is converted into accelerated wind, which is then discharged. The wind strength and flow rate performance of the hair dryer 100 are improved, so that hair can be dried in a short period of time.
  • the heater 150 of the hair dryer 100 includes the electric heat generator 151, the upper heat dissipating member 145, the lower heat dissipating member 155, and the heater connectors 152.
  • the electric heat generator 151 is located in the inner space defined by the upper heat dissipating member 145, the lower heat dissipating member 155, and the heater connectors 152, so that fine dust and electromagnetic waves generated by the electric heat generator 151 can be prevented from exiting outwards.
  • FIG. 11 is a front view illustrating a protrusion hood of a hair dryer according to a second embodiment of the present invention
  • FIG. 12 is a bottom perspective view of the protrusion hood of the hair dryer according to the second embodiment of the present invention.
  • the hair dryer includes a protrusion hood 201 including a protrusion hood body 202, a protrusion hood cover 203, first hair pins 204, and second hair pins 205.
  • the protrusion hood body 202 is disposed on one end portion of the outlet.
  • the protrusion hood body 202 has a hollow portion extending through the interior thereof to communicate with the inside of the housing member.
  • the protrusion hood body 202 is shaped to conform to the shape of a curved portion of the human body, e.g. the head of the human, for which the hair dryer is used. Accordingly, the protrusion hood 201 can be brought adjacently to the curved portion along the shape of the head, so as to dry the hair located in a relatively wide area.
  • the protrusion hood cover 203 covers the front surface of the protrusion hood body 202.
  • a plurality of wind holes 206 spaced apart from each other are provided in the protrusion hood cover 203.
  • the plurality of wind holes 206 are arranged in the protrusion hood cover 203 in the shape of the letter "V" and are spaced apart from each other. Accordingly, in an area below the protrusion hood 201, the hair can be dried in a concentrated manner. In an area above the protrusion hood 201, the hair in a relatively-wide area can be dried.
  • the first hair pins 204 protrude perpendicularly from the front surface of the protrusion hood cover 203 by a predetermined length.
  • the second hair pins 205 protrude perpendicularly from the front surface of the protrusion hood cover 203 by a predetermined length.
  • the second hair pins 205 are shorter than the first hair pins 204.
  • the predetermined distance between the portion of the human body and the protrusion hood cover 203 may be maintained, and the hair on the portion of the human body may be combed by the second hair pins 205.
  • the portion of the human body e.g. the scalp
  • the first hair pins 204 can be lightly tapped with the first hair pins 204, so that the scalp can be provided with a massage effect.
  • FIG. 13 is a front view illustrating a hook hood of a hair dryer according to a third embodiment of the present invention
  • FIG. 14 is a top perspective view of the hook hood of the hair dryer according to the third embodiment of the present invention.
  • the hair dryer includes a hook hood 301.
  • the hook hood 301 includes a hook hood body 302, upper bars 303, upper hooks 304, lower bars 305, and lower hooks 306.
  • the hook hood body 302 is mounted on an end portion of the outlet.
  • the hook hood body 302 has a hollow portion extending through the interior thereof to communicate with the inside of the housing member.
  • the upper bars 303 protrude from the front surface of the hook hood body 302 by a predetermined length, at angles inclined in predetermined directions.
  • the upper hooks 304 are bent from distal ends of the upper bars 303 in predetermined directions, so as to be inclined at greater angles than the upper bars 303.
  • the lower bars 305 protrude from the front surface of the hook hood body 302 by a predetermined length, in particular, from portions of the front surface spaced apart from the upper bars 303, at angles inclined in predetermined directions.
  • the lower hooks 306 are bent from distal ends of the lower bars 305 to be inclined.
  • the lower hooks 306 are bent in the same direction as the upper hooks 304.
  • the hook hood body 302 can be brought adjacently to the portion for which the hair dryer is used, for example, the curved portion along the shape of the head. Accordingly, the hair can be efficiently combed.
  • the upper hooks 304 and the lower hooks 306 are bent in the same direction, but opposite to the direction in which the hair hangs due to the weight thereof, so that the hook hood 301 can be prevented from being caught by the hair or the surface of the head while the hair is being combed.
  • the hair, growing on the portion of the human body for which the hair dryer is used may be combed by the upper bars 303 and the lower bars 305.
  • a portion of the hair is lifted up to a predetermined height, caught by the upper hooks 304 and the lower books 306, so that the hair can be combed without being tangled while the hair, as well as at least one of the portion of the human body and the portion on which the hair is growing, is being dried.
  • FIG. 15 is a front partial cross-sectional view illustrating a noise reducing member of a rotor unit of a hair dryer according to a fourth embodiment of the present invention.
  • a wind guide 460 of the hair dryer includes an annular first mount 446 provided in a bottom portion of the wind guide 460.
  • a rotor unit 440 includes an annular second mount 448 provided on a circumferential portion to correspond to the first mount 446.
  • An elastic member 447 is located between the first mount 446 and the second mount 448. The elastic member 447 is repeatedly compressed or restored, in response to the operation of the rotor.
  • the first mount 446 may be connected to the wind guide 460 by means of assembly, welding, etc., while the second mount 448 may be connected to the circumferential portion of the rotor unit 440 by means of assembly, welding, etc.
  • the elastic member 447 may be a spring or the like.
  • a plurality of the elastic members 447 may preferably be disposed between the first mount 446 and the second mount 448 to be spaced apart from each other, so as to simultaneously reduce the vibration of the rotor unit 440.
  • the hair dryer includes the first mount 446, the second mount 448, and the elastic member 447, the vibration and noise produced by the operation of the rotor may be removed by the elastic force of the elastic member 447. Accordingly, the vibration and noise produced by the rotor is prevented from being transferred to the wind guide 460.
  • a vibration proof pad 449 may further be provided between the wind guide 460 and the first mount, so that the vibration of the rotor unit 440 can be double-prevented from being transferred to the wind guide 460.
  • electromagnetic waves produced by the heater of the hair dryer can be blocked.
  • the wind guide can accelerate the speed of air while rotating the air, and thus, the wind strength of the hair dryer can be increased, so that hair can be dried in a short period of time. It is possible to block electromagnetic waves produced by the electric heat generator surrounded by the upper heat dissipating member, the lower heat dissipating member, and the heater connectors. Therefore, present invention is regarded as having high industrial applicability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning And Drying Hair (AREA)
EP17886392.4A 2016-12-28 2017-12-21 Hair dryer and electromagnetic wave blocking heating member applied to hair dryer Withdrawn EP3563717A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20160180781 2016-12-28
KR1020170104731A KR101827356B1 (ko) 2016-12-28 2017-08-18 헤어 드라이어 및 상기 헤어 드라이어에 적용되는 전자파가 차단된 가열 부재
PCT/KR2017/015219 WO2018124628A1 (ko) 2016-12-28 2017-12-21 헤어 드라이어 및 상기 헤어 드라이어에 적용되는 전자파가 차단된 가열 부재

Publications (1)

Publication Number Publication Date
EP3563717A1 true EP3563717A1 (en) 2019-11-06

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EP17886392.4A Withdrawn EP3563717A1 (en) 2016-12-28 2017-12-21 Hair dryer and electromagnetic wave blocking heating member applied to hair dryer

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EP (1) EP3563717A1 (ja)
JP (1) JP6882486B2 (ja)
KR (1) KR101827356B1 (ja)
WO (1) WO2018124628A1 (ja)

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KR102108375B1 (ko) * 2018-07-27 2020-05-28 주식회사 순수바람 헤어드라이어
EP3626109B1 (en) * 2018-09-19 2021-05-19 LG Electronics Inc. Method of controlling dryer and dryer stand
EP3827696B1 (en) 2018-09-19 2022-06-29 LG Electronics Inc. Dryer
KR102181008B1 (ko) * 2018-11-09 2020-11-19 양연식 표면 발열체를 이용한 무선 헤어 드라이기
CN111938291B (zh) * 2020-07-31 2024-11-01 深圳市物种起源科技有限公司 一种风道壳及电吹风

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KR200224653Y1 (ko) 2000-10-24 2001-05-15 문 최 전자파를 차단하는 헤어 드라이어
KR200417077Y1 (ko) * 2006-03-15 2006-05-22 버텍스 프레시젼 일렉트로닉스 아이엔씨. 헤어 드라이어의 발열 장치
KR100788324B1 (ko) * 2006-11-23 2007-12-27 강병환 흡배기형의 스타일링 드라이기
KR20090007952U (ko) * 2008-01-31 2009-08-05 조봉관 뜸질용 노즐을 갖는 헤어 드라이기
KR100998333B1 (ko) 2008-04-30 2010-12-06 김훈기 헤어드라이기
KR101155135B1 (ko) 2008-12-09 2012-06-11 (주)비앤피테크 엘이디 탈부착형 헤어드라이기
KR20130002264U (ko) * 2011-10-05 2013-04-15 김동락 전자파 차단 및 소음 방지용 헤어드라이어
KR20150141389A (ko) * 2014-06-10 2015-12-18 주식회사 유리테크 탄화규소 히터를 갖는 헤어 드라이기

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KR101827356B1 (ko) 2018-03-22
JP2020503120A (ja) 2020-01-30
JP6882486B2 (ja) 2021-06-02
WO2018124628A1 (ko) 2018-07-05

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