CN109171160A - Hair-dryer convenient to heat dissipation - Google Patents

Hair-dryer convenient to heat dissipation Download PDF

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Publication number
CN109171160A
CN109171160A CN201811160261.4A CN201811160261A CN109171160A CN 109171160 A CN109171160 A CN 109171160A CN 201811160261 A CN201811160261 A CN 201811160261A CN 109171160 A CN109171160 A CN 109171160A
Authority
CN
China
Prior art keywords
air
cylindrical body
heat dissipation
conservancy diversion
water conservancy
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.)
Granted
Application number
CN201811160261.4A
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Chinese (zh)
Other versions
CN109171160B (en
Inventor
倪祖根
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.)
Kingclean Electric Co Ltd
Original Assignee
Kingclean Electric 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 Kingclean Electric Co Ltd filed Critical Kingclean Electric Co Ltd
Priority to CN201811160261.4A priority Critical patent/CN109171160B/en
Publication of CN109171160A publication Critical patent/CN109171160A/en
Application granted granted Critical
Publication of CN109171160B publication Critical patent/CN109171160B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00Hair drying devices; Accessories therefor
    • A45D20/04Hot-air producers
    • A45D20/08Hot-air producers heated electrically
    • A45D20/10Hand-held drying devices, e.g. air douches
    • A45D20/12Details thereof or accessories therefor, e.g. nozzles, stands

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cleaning And Drying Hair (AREA)

Abstract

The invention discloses a blower convenient for heat dissipation, which comprises: the left end and the right end of the cylindrical body are both opened to form an air inlet and an air outlet; a handle connected to the cylindrical body; and the cover body is connected to the air inlet of the cylindrical body, wherein an air channel extending along the axial direction of the cylindrical body is formed inside the cylindrical body, an air blowing assembly is arranged in the air channel and comprises an installation sleeve and a blower arranged in the installation sleeve, and a certain distance is reserved between the outer side wall of the installation sleeve and the inner side wall of the cylindrical body to form a backflow channel between the outer side wall of the installation sleeve and the inner side wall of the cylindrical body. According to the invention, the annular PCB which can be sleeved on the blower is arranged in the blower, so that the problem of overlarge volume of the brushless blower is solved, the air channel in the blower is reasonably optimized, the problem of overlarge noise caused by volume reduction is solved, and meanwhile, the problem of poor heat dissipation of the blower after the volume reduction is solved by carrying out air return type heat dissipation on the PCB.

Description

A kind of hair dryer convenient for heat dissipation
Technical field
The present invention relates to hair dryer field, in particular to a kind of hair dryer convenient for heat dissipation.
Background technique
Hair dryer according to the driving motor that it is used is brush motor or brushless motor can be divided into have brush hair dryer with Brushless hair dryer.Brushless motor is made of motor body and driver, is a kind of typical electromechanical integrated product, due to Brushless motor is run with autocontrol, so will not be another on rotor as the synchronous motor of heavy load starting under frequency control Add starting winding, oscillation and step-out will not be generated in load sudden change, but there is also more apparent for brshless DC motor Disadvantage causes the overall volume of brushless hair dryer larger, this just leads since brushless motor needs to arrange in pairs or groups the biggish pcb board of volume Cause brushless hair dryer no matter routine use or carrying of travelling outdoors it is all more inconvenient, therefore how motor and pcb board are carried out Reasonable layout designs become urgent problem to be solved in the industry with the volume for reducing hair dryer, in addition, if by hair dryer volume It is centainly reduced, and will lead to hair dryer poor heat radiation, it is excessively high especially for the pcb board inside brushless hair dryer Temperature will lead to the risk that pcb board can not work normally or even also burn out.
In view of this, it is really necessary to develop a kind of hair dryer convenient for heat dissipation, to solve the above problems.
Summary of the invention
For the shortcomings of the prior art, the object of the present invention is to provide a kind of hair dryer convenient for heat dissipation, It is excessive to solve brushless hair dryer volume by the way that the ring-shaped P CB that can be sheathed on air blown producer is arranged in hair dryer for it Problem, and reasonably optimizing is carried out to the air duct of its inside, solve caused noise problems of too after reducing volume, while also logical It crosses and air return type heat dissipation is carried out to pcb board, solve the problems, such as poor heat radiation after hair dryer volume-diminished, have a vast market and answer Use prospect.
In order to realize above-mentioned purpose according to the present invention and other advantages, a kind of hair dryer convenient for heat dissipation is provided, is wrapped It includes:
Cylindrical body, the left and right ends of the cylindrical body are opened wide to form air inlet and air outlet;
Handle, the handle are connected to cylindrical body;And
Lid, the lid are connected to the air inlet of cylindrical body,
Wherein, the inside of cylindrical body, which is formed with along its axially extending air duct, air duct, is equipped with blower chamber, the drum Wind component includes installation sleeve and the air blown producer in installation sleeve, the lateral wall of installation sleeve and the inner sidewall of cylindrical body The return flow line spaced apart being located at formation between the two.
Preferably, installation sleeve includes left fair water sleeves and right fair water sleeves, integral type at the left end of left fair water sleeves Ground is formed with left water conservancy diversion port, and the bore of the left water conservancy diversion port is in that it is gradually expanded on the direction opposite with air current flow direction Gesture offsets up to the inner sidewall of its edge and cylindrical body and forms sealing, has been integrally formed at the right end of right fair water sleeves Right water conservancy diversion port, the bore of the right water conservancy diversion port is in air current flow direction in the gesture being gradually expanded until its edge and tubular sheet The inner sidewall of body offsets and forms sealing, to closing the left and right ends of the return flow line to be formed and be located at left water conservancy diversion Left reflux is respectively formed on the side wall of reflux space between port and right water conservancy diversion port, left water conservancy diversion port and right water conservancy diversion port Through-hole and right backflow through hole.
Preferably, at least two left backflow through hole on left water conservancy diversion port circumferentially.
Preferably, at least two right backflow through hole on right water conservancy diversion port circumferentially.
Preferably, at least two air inlets for leading to air duct are offered on lid, along air current flow direction on air duct It is sequentially arranged blast chamber and heating room, installation sleeve is set in blast chamber, and PCB component is arranged in installation sleeve.
Preferably, left fair water sleeves and right fair water sleeves are detachably connected, and lid is connected to each other with left water conservancy diversion port, from And the reflux space is connected by left backflow through hole and right backflow through hole with lid and heating room respectively.
Preferably, PCB component includes the ring-shaped P CB plate being sheathed in installation sleeve and is set in ring-shaped P CB plate end face Electronic component.
Preferably, air blown producer includes:
The air blast sleeve being sheathed in installation sleeve;And
Blower motor and blower fan in air blast sleeve,
Wherein, the lateral wall of air blast sleeve is equipped with several resilient support between air blast sleeve and installation sleeve Column.
Preferably, it heats and is equipped with heating component in room, which includes: heating coil;And it is set to heater wire Insulating sleeve between circle and the inner sidewall of heating room.
Preferably, the air outlet on cylindrical body is in air current flow direction in the gesture gradually tapered up.
Preferably, the air outlet of cylindrical body is equipped with nozzle, and nozzle includes:
Columnar nozzle ontology between insulating sleeve and the inner sidewall of heating room, the left and right ends of the nozzle body are spacious It opens;
Deflector, the deflector are connected to the right end of nozzle body, are closed with the right end opening to nozzle body,
Wherein, deflector and nozzle body junction are formed at least two fumaroles, and deflector is at its center along spray Mouth body axis is recessed inwardly, so that the gas circuit section for leading to fumarole is in the gesture gradually tapered up.
Compared with prior art, the present invention the beneficial effect is that: it can be sheathed on air blast by being arranged in hair dryer Ring-shaped P CB on device solves the problems, such as that brushless hair dryer volume is excessive, and carries out reasonably optimizing to the air duct of its inside, It solves caused noise problems of too after reducing volume, while also solving blowing by carrying out air return type heat dissipation to pcb board After machine volume-diminished the problem of poor heat radiation, application prospect is had a vast market.
Detailed description of the invention
Fig. 1 is the three-dimensional structure view according to the hair dryer of the present invention convenient for heat dissipation;
Fig. 2 is according to when handle, ontology and lid three combine in the hair dryer of the present invention convenient for heat dissipation Longitudinal sectional view;
Fig. 3 is the longitudinal sectional view according to the hair dryer of the present invention convenient for heat dissipation;
Fig. 4 is the explosive view according to the hair dryer of the present invention convenient for heat dissipation.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, foregoing end other objects of the invention, feature, side Face and advantage will be apparent, and so that those skilled in the art can carry out according to the description.In the accompanying drawings, For clarity, shape and size can be amplified, and will be indicated in all figures using identical appended drawing reference identical Or similar component.In the following description, such as center, thickness, height, length, front, back, rear portion, the left side, the right, top The words such as portion, bottom, top, lower part are to be based on the orientation or positional relationship shown in the drawings.Particularly, " height " is equivalent to from top Portion is to the size of bottom, and " width " is equivalent to size from left to right, and " depth " is equivalent to vertical size.These Relative terms are to be not intended to need specifically to be orientated for convenience and usually.It is related to the term of attachment, connection etc. (for example, " connection " and " attachment ") refer to these structures by the relationship that intermediate structure is fixed directly or indirectly to one another or is attached, And movable or rigidly attached or relationship, unless otherwise clearly stating.
Referring to Fig.1~Fig. 4 includes: convenient for the hair dryer 1 of heat dissipation
Cylindrical body 12, the left and right ends of the cylindrical body 12 are opened wide to form air inlet and air outlet;
Handle 11, the handle 11 are connected to cylindrical body 12;And
Lid 13, the lid 13 are connected to the air inlet of cylindrical body 12,
Wherein, the inside of cylindrical body 12, which is formed with along its axially extending air duct 121, air duct 121, is equipped with air blast group Part, the blower chamber include installation sleeve 14 and the air blown producer 16 in installation sleeve 14, the lateral wall of installation sleeve 14 It is spaced apart to form the return flow line being located between the two with the inner sidewall of cylindrical body 12.
Referring to Fig. 4, installation sleeve 14 includes left fair water sleeves 141 and right fair water sleeves 142, a left side for left fair water sleeves 141 Left water conservancy diversion port 1411 is integrally formed at end, the bore of the left water conservancy diversion port 1411 is opposite with air current flow direction In the gesture that is gradually expanded until the inner sidewall of its edge and cylindrical body 12 offsets and forms sealing on direction, right fair water sleeves Right water conservancy diversion port 1421 is integrally formed at 142 right end, the bore of the right water conservancy diversion port 1421 is in air current flow direction Upper is in the gesture being gradually expanded until the inner sidewall of its edge and cylindrical body 12 offsets and forms sealing, so that the reflux is logical The reflux space that the left and right ends in road are closed to be formed between left water conservancy diversion port 1411 and right water conservancy diversion port 1421, it is left Left backflow through hole 1412 and right backflow through hole 1422 are respectively formed on the side wall of water conservancy diversion port 1411 and right water conservancy diversion port 1421.
Referring to Fig. 4, at least two left backflow through hole 1412 on left water conservancy diversion port 1411 circumferentially.
Further, at least two right backflow through hole 1422 on right water conservancy diversion port 1421 circumferentially.
Referring to Fig.1~Fig. 3 offers at least two air inlets 131 for leading to air duct 121, edge on air duct 121 on lid 13 Air current flow direction be sequentially arranged blast chamber 1211 and heating room 1212, installation sleeve 14 be set to blast chamber 1211 in, peace PCB component 15 is arranged on sleeved 14.
Further, left fair water sleeves 141 and right fair water sleeves 142 are detachably connected, lid 13 and left water conservancy diversion port 1411 are connected to each other so that the reflux space by left backflow through hole 1412 and right backflow through hole 1422 respectively with lid 13 And heating room 1212 is connected.
Further, PCB component 15 includes the ring-shaped P CB plate 151 that is sheathed in installation sleeve 14 and is set to ring-shaped P CB plate Electronic component on 151 end faces.
Referring to Fig. 4, air blown producer 16 includes:
The air blast sleeve 161 being sheathed in installation sleeve 14;And
Blower motor and blower fan 162 in air blast sleeve 161,
Wherein, the lateral wall of air blast sleeve 161 is equipped with several between air blast sleeve 161 and installation sleeve 14 Elastomeric support column 1611.
Further, it heats and is equipped with heating component 17 in room 1212, which includes:
Heating coil 171;And
Insulating sleeve 172 between heating coil 171 and the inner sidewall of heating room 1212.
Referring to Fig. 3 and Fig. 4, the air outlet on cylindrical body 12 is in air current flow direction in the gesture gradually tapered up.
Further, it is equipped with nozzle 18 in the air outlet of cylindrical body 12, nozzle 18 includes:
Columnar nozzle ontology 182 between insulating sleeve 172 and the inner sidewall of heating room 1212, the nozzle body 182 left and right ends are opened wide;
Deflector 181, the deflector 181 are connected to the right end of nozzle body 181, spacious with the right end to nozzle body 181 Mouth is closed,
Wherein, deflector 181 and 181 junction of nozzle body are formed at least two fumaroles 183, and deflector 181 exists The center is recessed inwardly along 181 axis of nozzle body, so that the gas circuit section for leading to fumarole 183 is in gradually taper up it Gesture.
Working principle:
Referring to Fig. 3, thus 162 high speed rotation of blower fan in air blown producer 16 is led so that generating negative pressure in air duct 121 External air flow is caused to enter inside ontology 12 from the air inlet 131 on lid 13 along the direction arrow A, and by left water conservancy diversion port 1411 After the guiding of right water conservancy diversion port 1421, enter in heating room 1212, after a period of time to be heated, gas after heating again from It is sprayed outward in fumarole 183 along arrow D high speed, high temperature quick flow is formed, so that the moisture of hair surface can be quick Evaporation, thus achieve the purpose that drying hair moulding, in addition, the air pressure in the reflux space is bigger than the air pressure in installation sleeve 14, Fraction is caused to be back in the reflux space back through right backflow through hole 1422 and flow out by left backflow through hole 1412, So that the fraction can carry out brushing heat dissipation before entering heating room 1212 to the PCB component 15 in the reflux space, The cosmetic issue of PCB component 15 can be reduced in time, to improve the heat dissipation performance of hair dryer, extend the use of hair dryer Service life.
Number of devices and treatment scale described herein are for simplifying explanation of the invention.To application of the invention, Modifications and variations will be readily apparent to persons skilled in the art.
Although the embodiments of the present invention have been disclosed as above, but it is not limited in listed fortune in specification and embodiments With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily real Now other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is not limited to Specific details and legend shown and described herein.

Claims (11)

1. a kind of hair dryer (1) convenient for heat dissipation characterized by comprising
Cylindrical body (12), the left and right ends of the cylindrical body (12) are opened wide to form air inlet and air outlet;
Handle (11), the handle (11) are connected to cylindrical body (12);And
Lid (13), the lid (13) are connected to the air inlet of cylindrical body (12),
Wherein, the inside of cylindrical body (12) is formed with along its axially extending air duct (121), and air blast is equipped in air duct (121) Component, the blower chamber include installation sleeve (14) and the air blown producer (16) in installation sleeve (14), installation sleeve (14) inner sidewall of lateral wall and cylindrical body (12) is spaced apart to form the return flow line being located between the two.
2. the hair dryer (1) as described in claim 1 convenient for heat dissipation, which is characterized in that installation sleeve (14) includes left water conservancy diversion Sleeve (141) and right fair water sleeves (142) have been integrally formed left water conservancy diversion port at the left end of left fair water sleeves (141) (1411), the bore of the left water conservancy diversion port (1411) on the direction opposite with air current flow direction in the gesture that is gradually expanded until The inner sidewall of its edge and cylindrical body (12) offsets and forms sealing, integral type landform at the right end of right fair water sleeves (142) At there is right water conservancy diversion port (1421), the bore of the right water conservancy diversion port (1421) is straight in the gesture being gradually expanded in air current flow direction Inner sidewall to its edge and cylindrical body (12) offsets and forms sealing, so that the left and right ends of the return flow line be carried out Close the reflux space to be formed between left water conservancy diversion port (1411) and right water conservancy diversion port (1421), left water conservancy diversion port (1411) and on the side wall of right water conservancy diversion port (1421) left backflow through hole (1412) and right backflow through hole (1422) are respectively formed with.
3. the hair dryer (1) as claimed in claim 2 convenient for heat dissipation, which is characterized in that at least two left backflow through hole (1412) on left water conservancy diversion port (1411) circumferentially.
4. the hair dryer (1) as claimed in claim 2 convenient for heat dissipation, which is characterized in that at least two right backflow through hole (1422) on right water conservancy diversion port (1421) circumferentially.
5. the hair dryer (1) as claimed in claim 2 convenient for heat dissipation, which is characterized in that lid offers at least two on (13) A air inlet (131) towards air duct (121), has been sequentially arranged blast chamber along air current flow direction on air duct (121) (1211) with heating room (1212), for installation sleeve (14) in blast chamber (1211), installation sleeve is arranged with PCB group on (14) Part (15).
6. the hair dryer (1) as claimed in claim 5 convenient for heat dissipation, which is characterized in that left fair water sleeves (141) and right water conservancy diversion Sleeve (142) is detachably connected, and lid (13) is connected to each other with left water conservancy diversion port (1411), so that the reflux space is logical Left backflow through hole (1412) and right backflow through hole (1422) is crossed to be connected with lid (13) and heating room (1212) respectively.
7. the hair dryer (1) as claimed in claim 5 convenient for heat dissipation, which is characterized in that PCB component (15) includes being sheathed on peace Ring-shaped P CB plate (151) on sleeved (14) and the electronic component on ring-shaped P CB plate (151) end face.
8. the hair dryer (1) convenient for heat dissipation as described in claim 1, which is characterized in that air blown producer (16) includes:
The air blast sleeve (161) being sheathed in installation sleeve (14);And
Blower motor and blower fan (162) in air blast sleeve (161),
Wherein, the lateral wall of air blast sleeve (161) is equipped with several between air blast sleeve (161) and installation sleeve (14) Elastomeric support column (1611).
9. the hair dryer (1) as claimed in claim 5 convenient for heat dissipation, which is characterized in that be equipped with heating in heating room (1212) Component (17), the heating component (17) include: heating coil (171);And it is set to heating coil (171) and heating room (1212) Inner sidewall between insulating sleeve (172).
10. the hair dryer (1) convenient for heat dissipation as claimed in claim 9, which is characterized in that on cylindrical body (12) it is described go out Air port is in air current flow direction in the gesture gradually tapered up.
11. the hair dryer (1) convenient for heat dissipation as claimed in claim 10, which is characterized in that cylindrical body (12) it is described go out Air port is equipped with nozzle (18), and nozzle (18) includes:
Columnar nozzle ontology (182) between insulating sleeve (172) and the inner sidewall of heating room (1212), the nozzle body (182) left and right ends are opened wide;
Deflector (181), which is connected to the right end of nozzle body (182), with the right side to nozzle body (181) End opening is closed,
Wherein, deflector (181) and nozzle body (181) junction are formed at least two fumaroles (183), deflector (181) along nozzle body (181), axis is recessed inwardly at its center, so that the gas circuit section for leading to fumarole (183) is in The gesture gradually tapered up.
CN201811160261.4A 2018-09-30 2018-09-30 Hair dryer convenient to heat dissipation Active CN109171160B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811160261.4A CN109171160B (en) 2018-09-30 2018-09-30 Hair dryer convenient to heat dissipation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811160261.4A CN109171160B (en) 2018-09-30 2018-09-30 Hair dryer convenient to heat dissipation

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CN109171160A true CN109171160A (en) 2019-01-11
CN109171160B CN109171160B (en) 2023-08-22

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109700159A (en) * 2019-03-15 2019-05-03 莱克电气股份有限公司 A kind of hair dryer
CN109764002A (en) * 2019-03-15 2019-05-17 莱克电气股份有限公司 Height heat dissipation hair dryer
CN110638181A (en) * 2019-09-16 2020-01-03 深圳市物种起源科技有限公司 Hair drier with back-blowing and ash-removing functions
WO2020186854A1 (en) * 2019-03-15 2020-09-24 莱克电气股份有限公司 Hair drier with high heat dissipation efficiency
CN113491379A (en) * 2020-03-20 2021-10-12 添可智能科技有限公司 Hair drier
WO2022016914A1 (en) * 2020-07-20 2022-01-27 东莞市东井电器有限公司 Inner barrel apparatus for reducing internal space

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Publication number Priority date Publication date Assignee Title
JP2012130442A (en) * 2010-12-20 2012-07-12 Panasonic Corp Heating and blowing apparatus
CN203168302U (en) * 2012-03-30 2013-09-04 戴森技术有限公司 Hair dryer and handheld appliance
CN105407756A (en) * 2013-07-05 2016-03-16 戴森技术有限公司 A handheld appliance
CN206723097U (en) * 2017-05-11 2017-12-08 浙江帝仕电子科技有限公司 Brushless fan of hand dryer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012130442A (en) * 2010-12-20 2012-07-12 Panasonic Corp Heating and blowing apparatus
CN203168302U (en) * 2012-03-30 2013-09-04 戴森技术有限公司 Hair dryer and handheld appliance
CN105407756A (en) * 2013-07-05 2016-03-16 戴森技术有限公司 A handheld appliance
CN206723097U (en) * 2017-05-11 2017-12-08 浙江帝仕电子科技有限公司 Brushless fan of hand dryer

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022502170A (en) * 2019-03-15 2022-01-11 キングクリーン エレクトリック カンパニー リミテッド hair dryer
KR20210063365A (en) * 2019-03-15 2021-06-01 킹클린 일렉트로닉 컴퍼니 리미티드 high heat hair dryer
CN109700159B (en) * 2019-03-15 2024-05-24 莱克电气股份有限公司 Hair drier
WO2020186855A1 (en) * 2019-03-15 2020-09-24 莱克电气股份有限公司 Hair drier
CN109700159A (en) * 2019-03-15 2019-05-03 莱克电气股份有限公司 A kind of hair dryer
KR20210058967A (en) * 2019-03-15 2021-05-24 킹클린 일렉트로닉 컴퍼니 리미티드 Hair dryer
CN109764002A (en) * 2019-03-15 2019-05-17 莱克电气股份有限公司 Height heat dissipation hair dryer
US11730245B2 (en) 2019-03-15 2023-08-22 Kingclean Electric Co., Ltd. Hair dryer with high heat dissipation efficiency
WO2020186854A1 (en) * 2019-03-15 2020-09-24 莱克电气股份有限公司 Hair drier with high heat dissipation efficiency
KR102542312B1 (en) * 2019-03-15 2023-06-13 킹클린 일렉트로닉 컴퍼니 리미티드 hair dryer
EP3805573A4 (en) * 2019-03-15 2022-04-13 Kingclean Electric Co., Ltd. Blower having high heat dissipation
JP7247329B2 (en) 2019-03-15 2023-03-28 キングクリーン エレクトリック カンパニー リミテッド hair dryer
KR102525729B1 (en) * 2019-03-15 2023-04-25 킹클린 일렉트로닉 컴퍼니 리미티드 high heat hair dryer
CN110638181A (en) * 2019-09-16 2020-01-03 深圳市物种起源科技有限公司 Hair drier with back-blowing and ash-removing functions
CN113491379A (en) * 2020-03-20 2021-10-12 添可智能科技有限公司 Hair drier
WO2022016914A1 (en) * 2020-07-20 2022-01-27 东莞市东井电器有限公司 Inner barrel apparatus for reducing internal space

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