KR102340844B1 - Hair dryer for reducing noise - Google Patents

Abstract

According to one aspect of the present invention, the rear is opened, and the main body housing in which a wind flow path is formed to flow forward; a blower motor positioned on the wind flow path and generating wind toward the front of the main body housing; One end of the blower motor is inserted and fixed, and a motor fixing unit coupled to the rear end of the main body housing so that the blowing motor is positioned on the wind flow path, and an air buffer unit partitioning an air buffer space at the rear end of the motor fixing unit and a motor fixing jig comprising; There is provided a noise-reducing hair dryer that surrounds the air buffer and is coupled to the rear end of the main housing and includes a silencer for canceling a sound generated when the blower motor rotates.

Description

Hair dryer for reducing noise

The present invention relates to a noise-reducing hair dryer. More particularly, it relates to a noise-reducing hair dryer capable of canceling noise generated according to rotation of a motor and reducing contamination of sucked air.

In general, a hair dryer blows cold or warm air in a required direction to dry or style hair by a user. Basically, when the power is applied to the main body and the switch is operated, the main body draws air from the atmosphere, the sucked air passes through the heating device and the blower device, and the wind blows out of the main body to dry or style the user's hair. .

Recently, as expensive premium grade hair dryers have been released, hair dryers with high-speed BLDC motors are being developed.

When a high-speed BLDC motor is applied to the hair dryer, there is a risk of sharp noise due to the rotation of the motor during use, and there is a risk that contaminated air may reach the hair directly due to strong suction of surrounding air. Pollution level needs to be reduced.

Republic of Korea Public Utility Model No. 20-2010-0007249 (published on Jul. 15, 2010)

An object of the present invention is to provide a noise-reducing hair dryer capable of canceling noise generated by the rotation of a motor and reducing contamination of sucked air.

According to one aspect of the present invention, the rear is opened, and the main body housing in which a wind flow path is formed to flow forward; a blower motor positioned on the wind flow path and generating wind toward the front of the main body housing; One end of the blower motor is inserted and fixed, and a motor fixing unit coupled to the rear end of the main body housing so that the blowing motor is positioned on the wind flow path, and an air buffer unit partitioning an air buffer space at the rear end of the motor fixing unit and a motor fixing jig comprising; There is provided a noise-reducing hair dryer that surrounds the air buffer and is coupled to the rear end of the main housing and includes a silencer for canceling a sound generated when the blower motor rotates.

The blower motor includes: a cylindrical frame; a propeller built into the cylindrical frame to discharge wind to one end of the cylindrical frame as it rotates; It may include a rotor and a stator for rotating the propeller, in this case, the noise reduction hair dryer has a ring-shaped protrusion formed in a circular shape along the outer periphery, and further comprises an elastic sleeve into which the cylindrical frame of the blower motor is inserted. can

The noise reduction hair dryer further includes a pair of semi-annular fixing rings for pressing the ring-shaped protrusions of the elastic sleeve from both sides, wherein the pair of fixing rings compress the elastic sleeve in a circular shape. It may be inserted into and fixed to the motor fixing part.

The silencer includes: an inner tube defining a hollow part into which the air buffer part is inserted, and having a plurality of air holes formed therein; And a silencer surrounding the outer periphery of the inner cylinder (消音材); It may include an outer tube that surrounds the silencer and has a plurality of air holes formed therein.

The silencer may include an antibacterial filter that filters out dust in the air and is antibacterially treated.

The air buffer unit may include a plurality of extension rods extending from the motor fixing unit; It may include a support plate coupled to the end of the extension rod in the transverse direction.

The noise reduction hair dryer may include: a wind moving tube inserted into the rear end of the blower motor to move the wind generated by the blower motor toward the front of the main housing; The wind moving tube may further include a wind discharge tube that is inserted into the rear end and rotates with respect to the wind moving tube.

A plurality of positioning grooves may be formed along the outer periphery of the wind traveling tube on the outer circumferential surface of the wind moving tube, and positioning protrusions corresponding to the positioning grooves may be formed in the wind discharge tube, the wind discharge According to the rotation of the tube, the positioning protrusion may be inserted or separated into the positioning groove to determine the position of the wind discharge tube.

The wind moving tube may include a motor support tube to which the motor fixing part is fitted at the rear end so that the blower motor is inserted, in this case, the noise reduction hair dryer is coupled to the front end of the motor support tube, It may further include a wind heating unit generated in the blower motor to heat the wind passing through the motor support tube.

The motor fixing jig may further include a circular sealing ring fixed to the outer periphery of the motor fixing part and interposed between the motor fixing part and the motor support tube.

The wind moving tube may further include a wind induction tube to which the protruding wind heating unit is inserted into the rear end and guides the heated wind to the front of the main housing, the wind discharge tube is rotatably coupled.

The noise reduction hair dryer may include: a nozzle coupling part coupled to the front end of the wind discharge tube and closing the front end of the main housing; It may further include a nozzle unit coupled to the nozzle coupling unit for discharging the wind to the outside.

The wind discharge tube may have a reduced cross-section so that a linear wind outlet is formed at the front end. Wow; A first linear opening corresponding to the linear wind outlet is formed, and may include a partition wall formed across the interior of the nozzle coupling unit body.

The nozzle unit may include: an attachment unit having an insertion ring having a second linear opening corresponding to the linear first opening formed therein, and being adhered to the partition wall; It may include a nozzle blade integrally formed with the attachment part and forming a linear nozzle corresponding to the second opening.

A permanent magnet and a magnetic material detachably attached to the permanent magnet may be respectively coupled to positions opposite to each other of the partition wall and the attachment part.

The noise reduction hair dryer may further include two handle portions protruding apart from each other from the outer surface of the main housing.

The noise-reducing hair dryer according to an embodiment of the present invention can eliminate noise generated according to the rotation of the motor and reduce the pollution of the air sucked in.

1 and 2 are exploded perspective views of a noise reduction hair dryer according to an embodiment of the present invention.
3 and 4 are exploded plan views of the noise reduction hair dryer according to an embodiment of the present invention.
5 is a combined cross-sectional view of a noise reduction hair dryer according to an embodiment of the present invention.
6 is a cross-sectional view of a silencer of the noise reduction hair dryer according to an embodiment of the present invention.
7 is a cross-sectional view of a nozzle coupling portion of the noise reduction hair dryer according to an embodiment of the present invention.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, the noise reduction hair dryer according to the present invention will be described in detail with reference to the accompanying drawings, and in the description with reference to the accompanying drawings, the same or corresponding components are given the same reference numbers and overlapped A description will be omitted.

1 and 2 are exploded perspective views of a noise reduction hair dryer according to an embodiment of the present invention, FIGS. 3 and 4 are exploded cross-sectional views of a noise reduction hair dryer according to an embodiment of the present invention, and FIG. 5 is this view A cross-sectional view of a noise reduction hair dryer according to an embodiment of the present invention. And, FIG. 6 is a cross-sectional view of the silencer of the noise reduction hair dryer according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view of the nozzle coupling part of the noise reduction hair dryer according to an embodiment of the present invention.

1 to 7, the main body housing 12, the blower motor 14, the motor fixing part 16, the air buffer part 18, the air buffer space 20, the motor fixing jig 22, the sealing ring ( 23), silencer 24, cylindrical frame 26, stator 28, elastic sleeve 30, ring-shaped protrusion 32, fixing ring 34, inner tube 36, outer tube 38, Silencer 40, extension rod 42, support plate 44, wind moving tube 45, motor support tube 46, insulating blade 47, wind heating unit 48, heating wire 49, wind Induction tube 50 , wind discharge tube 52 , nozzle coupling portion 54 , nozzle portion 56 , positioning groove 58 , positioning protrusion 60 , wind discharge port 62 , nozzle coupling unit body 64 , partition wall 66 , first opening 68 , insert ring 70 , attachment portion 71 , nozzle blade 72 , and handle portion 74 are shown.

The noise reduction hair dryer according to this embodiment includes a main housing 12 having a rear open and a wind flow path through which wind flows forward; a blowing motor 14 located on the wind flow path and generating wind toward the front of the main body housing 12; One end of the blower motor 14 is inserted and fixed, and a motor fixing unit 16 coupled to the rear end of the main body housing 12 so that the blowing motor 14 is positioned on the wind flow path, and the rear end of the motor fixing unit 16 a motor fixing jig 22 including an air buffer unit 18 defining an air buffer space 20 in the air; It surrounds the air buffer unit 18 and is coupled to the rear end of the main body housing 12 , and includes a silencer 24 for canceling a sound generated when the blower motor 14 rotates.

The main body housing 12 is a place where the driving parts of the hair dryer are built-in therein, and in this embodiment, a wind flow path is formed in the longitudinal direction therein, and a hollow cylindrical structure is formed. present.

A handle portion 74 that can be gripped by a user extends from the body housing 12, and according to this embodiment, two handle portions 74 are spaced apart from each other and protrude from the outer surface of the body housing 12. do. Convenience is provided by allowing the user to select the handle portion 74 according to convenience when drying or styling hair. The two handle parts 74 are connected at the bottom to form an approximately 'U' shape.

The blower motor 14 is located on the wind flow path and generates wind toward the front of the main body housing 12 . The blower motor 14 generates wind while a propeller (not shown) rotates according to the rotation of the motor.

Recently, there is a case in which a high-speed motor rotating more than 100,000 times per minute is used as the blower motor 14 of the hair dryer.

In the present invention, a silencer 24, which will be described later, is installed at the rear end of the main body housing 12 to reduce noise from being exposed to the outside of the hair dryer according to the rotation of the internal motor in the process of using the hair dryer for drying hair. placed on This will be described in detail below.

As shown in Figs. 1 and 3, the blower motor 14 according to the present embodiment includes a cylindrical frame 26; a propeller (not shown) built into the cylindrical frame 26 and discharging wind to one end of the cylindrical frame 26 as it rotates; It includes a rotor (not shown) and a stator 28 for rotating the propeller.

The cylindrical frame 26 is a structure for sending the wind generated according to the rotation of the built-in propeller in one direction, and has an inner diameter that is slightly larger than the outermost diameter of the propeller.

The propeller is built into the cylindrical frame 26 and discharges wind to one end of the cylindrical frame 26 as it rotates. As described above, the outermost diameter of the propeller is smaller than the inner diameter of the cylindrical frame 26 so as not to interfere with the inner diameter of the cylindrical frame 26 during the rotation of the propeller.

A cylindrical shaft is formed inside the cylindrical frame 26, and the rotor coupled to the propeller is inserted into the stator 28 in a state in which the stator 28 is fixed to the cylindrical shaft.

The blow motor 14 as described above may be inserted into the elastic sleeve 30, and referring to FIGS. 1 and 3 , the blowing motor into the inside of the elastic sleeve 30 in which the ring-shaped protrusion 32 is formed in a circular shape along the outer periphery. The cylindrical frame 26 of (14) is inserted.

The elastic sleeve 30 is made of a rubber material or a silicone material and has a structure capable of absorbing vibrations that may occur during the rotation of the propeller. The ring-shaped protrusion 32 protruding from the elastic sleeve 30 forms an elastic support part The vibration generated by the blower motor 14 is absorbed. On the other hand, while the plurality of ring-shaped protrusions 32 are in line contact with the fixing ring 34 to be described later, noise generated from the blower motor 14 is prevented from being exposed to the rear end of the main body housing 12 .

The motor fixing jig 22 is, as shown in FIG. 1, at the rear end of the main body housing 12 so that one end of the blower motor 14 is inserted and fixed and the blower motor 14 is positioned on the wind flow path. It includes a motor fixing unit 16 to be coupled, and an air buffer unit 18 partitioning the air buffer space 20 at the rear end of the motor fixing unit 16 .

The motor fixing jig 22 is a configuration for holding the blower motor 14 to set a position inside the body housing 12, and a motor fixing part 16 for holding the blower motor 14, and a motor high An air buffer unit 18 partitioning an air buffer space 20 of a predetermined volume is included at the rear end of the top portion 16 .

The motor fixing part 16 according to this embodiment has a cylindrical shape, and the cylindrical frame 26 of the blower motor 14 is inserted and fixed. Looking in more detail, the cylindrical frame 26 of the blower motor 14 is fitted with an elastic sleeve 30, and the outer circumferential surface of the elastic sleeve 30 is surrounded by a pair of semi-annular fixing rings 34 wrapped around the fixing ring. (34) is coupled to the motor fixing portion (16) by fitting.

As the inner circumferential surface of the fixing ring 34 surrounding the elastic sleeve 30 presses the ring-shaped protrusion 32 of the elastic sleeve 30, the ring-shaped protrusion 32 forms an elastic support to reduce the vibration of the blower motor 14. It absorbs and prevents the noise generated in the front from moving to the rear of the blower motor 14 .

The air buffer space 20 formed by the air buffer unit 18 at the rear end of the motor fixing unit 16 is a place where the air introduced into the interior through the silencer 24, which will be described later, temporarily stays, and the silencer 24 ) serves to smoothly supply the purified air to the blower motor 14 .

The air buffer unit 18 according to the present embodiment includes a plurality of extension rods 42 extending from the motor fixing unit 16, as shown in FIGS. 1 and 3; and a support plate 44 transversely coupled to an end of the extension rod 42 . The plurality of extension rods 42 extend rearward from the end of the circular motor fixing unit 16 , and the support plate 44 is transversely coupled to the end of the extended extension rod 42 at the rear, and the plurality of extension rods An internal space formed by the rod 42 and the support plate 44 is divided into an air buffer space 20 .

The silencer 24 surrounds the air buffer unit 18 and is coupled to the rear end of the main body housing 12 , and cancels a sound generated when the blower motor 14 rotates. Referring to FIG. 5 , the silencer 24 is coupled to the rear end of the main body housing 12 while enclosing the air buffer unit 18 and is configured as a part of the exterior of the hair dryer. The external air of the hair dryer is purified while passing through the silencer 24 and flows into the air buffer space 20 of the motor fixing jig 22 , and the air introduced into the air buffer space 20 is supplied to the blower motor 14 . According to the rotation of the propeller of the flow through the blow motor 14 to the front of the main body housing (12).

In this case, a strong and sharp noise may be generated according to the high-speed rotation of the blower motor 14 , and the noise inside the hair dryer is eliminated through the silencer 24 , thereby enhancing the feeling of use for the user.

The silencer 24 according to this embodiment divides a hollow portion into which the air buffer portion 18 is inserted, an inner tube 36 in which a plurality of air holes are formed, and a silencer 40 surrounding the outer periphery of the inner tube. ) (消音材), and surrounds the silencer 40, and includes an outer tube 38 in which a plurality of air holes are formed. Referring to FIG. 6 , the inner tube 36 has a cylindrical shape and partitions a hollow portion into which the air buffer unit 18 of the motor fixing jig 22 is inserted, and the outer tube 38 has an inner diameter greater than that of the inner tube 36 . The silencer 40 is interposed in a space formed by the inner tube 36 and the outer tube 38 in a large cylindrical shape.

The silencer 24 according to the present embodiment has a cylindrical shape having a hollow portion formed therein, and is coupled to the rear end of the cylindrical body housing 12 and is configured as a part of the exterior of the hair dryer.

A plurality of air holes are formed in the inner tube 36 and the outer tube 38, so that external air flows into the air hole of the outer tube 38 and is purified while passing through the silencer 40, and the purified air is It may flow out through the air hole of the inner tube 36 and flow into the air buffer space 20 .

The silencer 40 is a member capable of removing noise by slowing the air movement speed in the process of air passing by forming a plurality of air layers or complex air movement paths therein, and includes polyester, polystyrene, polyurethane, and polyvinyl chloride. It can be formed by foaming, etc.

On the other hand, as the silencer 40 , it is possible to filter dust from the air, and by using an antibacterial filter treated with antibacterial treatment, dust and bacteria in the outside air can be filtered and supplied to the blower motor 14 .

According to this embodiment, the wind generated by the blower motor 14 moves forward of the main body housing 12 through the wind moving tube 45 built in the wind flow path, and the wind moved forward is the wind discharge tube. It can be discharged through (52).

The wind discharge tube 52 may be rotatably coupled to the wind movement tube 45 to change the discharge form of the wind moved from the wind movement tube 45 according to the rotation.

And, the wind moving tube 45 is coupled to the front end of the motor support tube 46, the motor fixing part 16 is fitted to the rear end so that the blowing motor 14 is inserted, and the motor support tube 46, the motor It may include a wind guide tube 50 for guiding the wind moving from the support tube 46 to the front of the body housing 12 . By configuring the wind moving tube 45 in a segmented form in this way, it is possible to easily arrange the wind heating unit 48 inside the wind moving tube 45 .

The motor support tube 46 connects the blower motor 14 and the wind heating unit 48 to form a blower motor body. At the rear end of the motor support tube 46, the blower motor 14 is coupled to the motor fixing jig. The motor fixing part 16 of 22 is fitted, and the wind heating part 48 is coupled to the front end of the motor support tube 46 . The wind generated by the blower motor 14 is heated by the wind heating unit 48 while flowing in the motor support tube 46 to generate hot wind.

On the other hand, a circular sealing ring 23 is fixed along the outer periphery of the motor fixing jig 22 , and the motor fixing unit 16 supports the motor when the motor fixing unit 16 is fitted to the motor support tube 46 . It is interposed between the tubes 46 to prevent noise generated from the blower motor 14 from moving to the rear end.

The blowing motor body in which the blowing motor 14 and the wind heating unit 48 are coupled is inserted into the wind flow path of the main body housing 12 and is built into the main body housing 12 .

The wind heating unit 48 protrudes from the front end of the motor support tube 46 and divides the wind flowing out from the motor support tube 46 into several branches. It is composed of a spiral wound hot wire 49 to be wound, and heats the wind moving along the insulated blade 47 .

The wind induction tube 50 is a configuration that guides the wind or heated wind generated by the blower motor 14 to the front of the main housing 12, and the wind heating unit 48 protruding from the motor support tube 46 is the wind. It is inserted into the rear end of the induction tube (50). The wind generated by the blower motor 14 is guided to the front of the main body housing 12 through the wind moving tube 45 such as the motor support tube 46 and the wind induction tube 50 .

The above-described motor support tube 46 and wind induction tube 50 may be formed in a cylindrical shape according to the inner diameter shape of the cylindrical body housing 12, and be coupled to be in close contact with the inside of the main body housing 12. can According to the shape of the cylindrical body housing 12, the assembly of the hair dryer can be improved by configuring the motor support tube 46 and the wind induction tube 50 in a cylindrical shape.

The wind discharge tube 52 is rotatably coupled to the rear end of the wind induction tube 50 of the wind moving tube 45 to change the discharge shape of the wind according to the rotation. 2 and 4 , the wind discharge tube 52 according to the present embodiment has a cylindrical rear end so that the wind induction tube 50 is inserted into the rear end, but the front end has a linear wind outlet while reducing the cross section. (62) is formed. Accordingly, while the wind passing through the wind induction tube 50 passes through the linear wind outlet 62 of the wind discharge tube 52, the discharge shape of the wind is changed. Since the wind discharge tube 52 can be rotated with respect to the wind induction tube 50, the shape of the wind discharged while the linear wind outlet 62 rotates according to the rotation of the wind discharge tube 52 can be changed. .

In order to determine the rotational position of the wind discharge tube 52, a plurality of positioning grooves 58 may be formed along the outer periphery of the wind traveling tube 50 on the outer circumferential surface of the wind traveling tube 45, and the wind discharge A positioning protrusion 60 corresponding to the positioning groove 58 may be formed in the tube 52 . As the positioning protrusion 60 is inserted into or separated from the positioning groove 58 according to the rotation of the wind discharge tube 52 , the rotational position of the wind discharge tube 52 may be determined. In this embodiment, a plurality of positioning grooves 58 are formed on the outer peripheral surface of the wind guide tube 50 constituting the wind moving tube 45 .

A nozzle coupling unit 54 is coupled to the front end of the wind discharge tube 52 , and the nozzle coupling unit 54 is coupled to the front end of the wind discharge tube 52 and also closes the front end of the body housing 12 . Since the nozzle coupling portion 54 is coupled to the wind discharge tube 52 , the wind discharge tube 52 may be rotated with respect to the wind induction tube 50 by rotating the nozzle coupling portion 54 .

A nozzle unit 56 for discharging wind to the outside may be coupled to the nozzle coupling unit 54 . The nozzle unit 56 is a configuration for finally delivering the wind generated by the blower motor 14 to the user. In this embodiment, the nozzle unit 56 is detachably coupled to the nozzle coupling unit 54 . present.

The nozzle coupling part 54 according to the present embodiment includes a ring-shaped nozzle coupling part body 64 having one end rotatably inserted into the front end of the housing body; A linear first opening 68 is formed corresponding to the linear wind outlet 62, and includes a partition wall 66 formed across the interior of the nozzle coupling body 64, and correspondingly, the present The nozzle unit 56 according to the embodiment has an insertion ring 70 in which a second linear opening corresponding to the linear first opening 68 is formed therein, and is attached to the partition wall 66 . part 71; It includes a nozzle blade 72 integrally formed with the attachment portion 71 and forming a linear nozzle corresponding to the second opening.

The nozzle coupling part 54 according to the present embodiment includes a ring-shaped nozzle coupling part body 64 and a partition that is coupled across the inside of the nozzle coupling part body 64 and has a linear first opening 68 formed therein. It is composed of a wall 66, and one end of the nozzle coupling unit body 64 is cut so that the linear first opening 68 of the partition wall 66 and the linear wind outlet 62 of the wind discharge tube 52 coincide with each other. It can be assembled by coupling the nozzle coupling part 54 to the wind discharge tube 52 in a state inserted into the front end of the body housing 12 .

Correspondingly, the nozzle unit 56 is composed of an attachment portion 71 having an insertion ring 70 and a nozzle blade 72 in the form of a linear tube integrally formed with the attachment portion 71, the insertion ring When the attachment part 71 is attached to the partition wall 66 of the nozzle coupling part 54 while inserting the 70 into the first opening 68 of the nozzle coupling part 54, the insertion ring 70 is formed As the second opening communicates with the first opening 68 , the nozzle unit 56 is attached to the nozzle coupling unit 54 . The wind flowing out through the first opening 68 and the second opening is finally discharged through the nozzle of the nozzle wing 72 .

When the user rotates the nozzle unit 56 to change the shape of the wind discharged from the nozzle unit 56 , the nozzle coupling unit 54 rotates with respect to the front end of the body housing 12 , and the nozzle coupling unit 54 . The wind discharge tube 52 is coupled to rotate with respect to the wind induction tube (50).

On the other hand, at positions opposite to each other between the partition wall 66 and the attachment part 71 of the nozzle coupling part 54, a permanent magnet (not shown) and a magnetic body (not shown) detachably attached to the permanent magnet are respectively coupled to the nozzle coupling. The nozzle unit 56 may be detachably coupled to the unit 54 .

In the present embodiment, a permanent magnet is embedded in the attachment part 71 and a magnetic material is embedded in the partition wall 66 , and the nozzle part 56 is configured to be detachably attached to the nozzle coupling part 54 .

Referring to FIG. 5, the operating state of the noise reduction hair dryer according to the present embodiment will be described as follows.

When the user rotates the nozzle part 56 according to hair drying or styling and operates the power button located on the handle part 74, the propeller rotates according to the rotation of the blower motor 14 and the While the air is sucked from the rear, the sucked air is accelerated and discharged through the nozzle unit 56 of the hair dryer. At this time, the wind heating unit 48 may operate for drying the hair, and the wind generated by the blower motor 14 is heated and discharged according to the operation of the wind heating unit 48 .

In the process in which external air is sucked in according to the rotation of the blower motor 14, it passes through the silencer 24 at the rear end of the body housing 12, and contaminants in the air can be removed in the process of passing the silencer 24. . The purified air passing through the silencer 24 is introduced into the air buffer space 20 of the motor fixing jig 22 , and the purified air in the air buffer space 20 is accelerated while passing through the blower motor 14 and the motor It is discharged to the nozzle part 56 of the front end of the main body housing 12 through the support tube 46 , the wind induction tube 50 , and the wind discharge tube 52 .

A sharp noise may be generated inside the body housing 12 according to the rotation of the blower motor 14, and the noise is canceled by the silencer 24 coupled to the rear of the body housing 12 to provide usability to the user. can

Although the above has been described with reference to the embodiments of the present invention, those of ordinary skill in the art can variously modify the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. and can be changed.

12: body housing 14: blower motor
16: motor fixing unit 18: air buffer unit
20: air buffer space 22: motor fixing jig
23: sealing ring 24: silencer
26: cylindrical frame 28: stator
30: elastic sleeve 32: ring-shaped protrusion
34: retaining ring 36: inner tube
38: outer tube 40: silencer
42: extension rod 45: wind moving tube
46: motor support tube 47: insulated vane
48: wind heating part 49: heating wire
50: wind induction tube 52: wind discharge tube
54: nozzle coupling portion 56: nozzle portion
58: positioning groove 60: positioning projection
62: wind outlet 64: nozzle coupling unit body
66: partition wall 68: first opening
70: insertion ring 71: attachment part
72: nozzle wing 74: handle

Claims (16)

a body housing having an open rear and a wind flow path through which wind flows forward;
a blower motor positioned on the wind flow path and generating wind toward the front of the main body housing;
One end of the blower motor is inserted and fixed, and a motor fixing unit coupled to the rear end of the main body housing so that the blowing motor is positioned on the wind flow path, and an air buffer unit partitioning an air buffer space at the rear end of the motor fixing unit and a motor fixing jig comprising;
A noise reduction hair dryer that surrounds the air buffer and is coupled to the rear end of the main housing, and includes a silencer for canceling a sound generated when the blower motor rotates.
According to claim 1,
The blower motor is
a cylindrical frame;
a propeller built into the cylindrical frame to discharge wind to one end of the cylindrical frame as it rotates;
It includes a rotor and a stator for rotating the propeller,
A ring-shaped protrusion is formed in a circular shape along the outer periphery, and further comprising an elastic sleeve into which the cylindrical frame of the blower motor is inserted, the noise reduction hair dryer.
3. The method of claim 2,
Further comprising a pair of semi-annular fixing rings for pressing the ring-shaped protrusion of the elastic sleeve from both sides,
A noise reduction hair dryer, characterized in that the pair of fixing rings are inserted into and fixed to the motor fixing part in a state in which the elastic sleeve is compressed in a circular shape.
According to claim 1,
The silencer,
an inner tube defining a hollow portion into which the air buffer unit is inserted, and having a plurality of air holes formed therein;
a silencer surrounding the outer periphery of the inner tube;
The noise reduction hair dryer, characterized in that it includes an outer tube that surrounds the silencer and has a plurality of air holes formed therein.
5. The method of claim 4,
The noise material is
Noise reduction hair dryer, characterized in that it includes an antibacterial filter treated with antibacterial treatment to filter out dust in the air.
According to claim 1,
The air buffer unit,
a plurality of extension rods extending from the motor fixing part;
Noise reduction hair dryer, characterized in that it comprises a support plate coupled to the end of the extension rod in the transverse direction.
According to claim 1,
a wind moving tube inserted into the rear end of the blower motor to move the wind generated by the blower motor to the front of the main body housing;
The wind tube is inserted into the rear end, the noise reduction hair dryer characterized in that it further comprises a wind discharge tube that rotates with respect to the wind tube.
8. The method of claim 7,
A plurality of positioning grooves are formed on the outer peripheral surface of the wind moving tube along the outer periphery of the wind moving tube,
A positioning protrusion corresponding to the positioning groove is formed in the wind discharge tube,
The noise reduction hair dryer, characterized in that the positioning protrusion is inserted or separated into the positioning groove according to the rotation of the wind discharge tube to determine the position of the wind discharge tube.
8. The method of claim 7,
The wind moving tube,
and a motor support tube to which the motor fixing part is fitted at the rear end so that the blower motor is inserted,
The noise reduction hair dryer is coupled to the front end of the motor support tube, further comprising a wind heating unit for heating the wind generated in the blower motor and passing through the motor support tube.
10. The method of claim 9,
The motor fixing jig,
The noise reduction hair dryer is fixed to the outer periphery of the motor fixing part, characterized in that it further comprises a circular sealing ring interposed between the motor fixing part and the motor support tube.
10. The method of claim 9,
The wind moving tube,
The protruding wind heating unit is inserted into the rear end and guides the heated wind to the front of the main housing, and further comprises a wind induction tube to which the wind discharge tube is rotatably coupled, noise reduction hair dryer.
8. The method of claim 7,
a nozzle coupling part coupled to the front end of the wind discharge tube and closing the front end of the body housing;
The noise reduction hair dryer is coupled to the nozzle coupling part further comprising a nozzle part for discharging the wind to the outside.
13. The method of claim 12,
The wind discharge tube,
The cross section is reduced to form a linear wind outlet at the front end,
The nozzle coupling part,
a ring-shaped nozzle coupling unit body having one end rotatably inserted into the front end of the housing body;
The first linear opening corresponding to the linear wind outlet is formed, and the noise reduction hair dryer, characterized in that it comprises a partition wall formed across the interior of the nozzle coupling unit body.
14. The method of claim 13,
The nozzle unit,
an attachment part having an insertion ring formed therein having a second linear opening corresponding to the linear first opening and being adhered to the partition wall;
The noise reduction hair dryer, characterized in that it comprises a nozzle blade formed integrally with the attachment part and forming a linear nozzle corresponding to the second opening.
15. The method of claim 14,
A permanent magnet and a magnetic body detachably attached to the permanent magnet are respectively coupled to positions opposite to each other of the partition wall and the attachment part, respectively.
According to claim 1,
The noise reduction hair dryer further comprising two handle portions protruding apart from each other from the outer surface of the main housing housing.

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