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WO2021047462A1 - Dispositif de sèche-cheveux portatif - Google Patents

Dispositif de sèche-cheveux portatif Download PDF

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Publication number
WO2021047462A1
WO2021047462A1 PCT/CN2020/113670 CN2020113670W WO2021047462A1 WO 2021047462 A1 WO2021047462 A1 WO 2021047462A1 CN 2020113670 W CN2020113670 W CN 2020113670W WO 2021047462 A1 WO2021047462 A1 WO 2021047462A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
hand
assembly
blowing device
working part
Prior art date
Application number
PCT/CN2020/113670
Other languages
English (en)
Chinese (zh)
Inventor
俞浩
Original Assignee
追创科技(苏州)有限公司
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
Priority claimed from CN201921523234.9U external-priority patent/CN211130021U/zh
Priority claimed from CN201921522089.2U external-priority patent/CN210581441U/zh
Priority claimed from CN201921523220.7U external-priority patent/CN210672442U/zh
Priority claimed from CN201910865992.7A external-priority patent/CN110448028A/zh
Priority claimed from CN201921522059.1U external-priority patent/CN210672439U/zh
Priority claimed from CN201921523221.1U external-priority patent/CN210581451U/zh
Application filed by 追创科技(苏州)有限公司 filed Critical 追创科技(苏州)有限公司
Publication of WO2021047462A1 publication Critical patent/WO2021047462A1/fr

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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
    • 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

Definitions

  • the invention relates to a hand-held blowing device, which belongs to the technical field of electric tools.
  • a hair dryer is a small personal care appliance that can quickly dry the hair. It can be heated by a heating wire to make the wind hot, so that the hair is dried faster. With the rapid development of science and technology of the times, hair dryers with air intake from the grip part appeared. However, when the airflow in the holding part enters the working part, the airflow will be turbulent, which will result in poor airflow at the air outlet, waste of resources and poor blowing effect.
  • the purpose of the present invention is to provide a hand-held blowing device, which is provided with a diversion part at the air inlet, so that the air flow can flow from the air inlet to the air outlet, preventing the airflow from forming turbulence in the working part, thereby making the air outlet
  • the airflow is smooth.
  • a hand-held blowing device including a holding part, a working part connected to the holding part, and a working part arranged in the holding part to introduce external airflow to the working part.
  • the working part has an air inlet and an air outlet
  • the holding part is connected with the air inlet;
  • the holding part includes a holding shell formed with a hollow part and arranged in the hollow part
  • the holding inner shell is provided with a guiding part for guiding the airflow, and the guiding part guides the airflow from the air inlet to the air outlet.
  • the holding inner shell has an inner surface
  • the flow guiding portion is a protruding block protruding from the inner surface.
  • the protruding block has a vertical surface arranged perpendicular to the inner surface and an inclined surface for connecting the vertical surface and the inner surface, and the inclined surface extends from an end close to the air inlet to an end far away from the air inlet tilt.
  • an included angle is formed between the inclined surface and the vertical surface, and the range of the included angle is greater than 0° and less than 90°.
  • the inner surface is a wavy surface connected with the vertical surface.
  • cross section of the protruding block is trapezoidal or triangular.
  • the working part includes a wind tube housing formed with a cavity, a central wind tube arranged in the cavity, and a wind shield ring that cooperates with the guide part to guide the airflow to the air outlet,
  • the wind shielding ring is arranged at the air inlet.
  • the windshield ring is sleeved on the central wind tube and arranged obliquely toward the air outlet.
  • the air guide portion is arranged close to the side of the wind deflector near the air inlet or coaxially arranged with the side of the wind deflector near the air inlet.
  • a heating component for adjusting the temperature of the airflow and a control component for controlling the heating component and the suction component are also arranged in the cavity, the heating component is arranged close to the air inlet, and the control component is arranged It is arranged on one side of the windshield ring and away from the heating assembly.
  • the beneficial effect of the present invention is that the holding part is provided with a guide part near the air inlet of the working part, and the guide part is used to guide the airflow from the air inlet to the air outlet to prevent the airflow from forming turbulence in the working part. , Which in turn makes the air flow at the air outlet smooth, and indirectly achieves the effect of solving resources;
  • the windshield ring is arranged above the guide portion to prevent the airflow from flowing in a direction away from the air outlet, so that more airflow can flow to the air outlet, which is convenient and efficient.
  • a hand-held blowing device comprising a holding part, a working part connected to the holding part, and a suction assembly for introducing external airflow to the working part
  • the working part including A wind tube housing formed with a cavity, a center wind tube arranged in the cavity and used to form an air flow channel, a heating component and a circuit board sleeved on the center wind tube, the center wind tube having an outer peripheral surface ,
  • the circuit board is sleeved on the outer peripheral surface to be fixed with the central air duct.
  • the central wind tube includes a first wind tube and a second wind tube connected to the first wind tube.
  • the diameter of the first wind tube is smaller than the diameter of the second wind tube.
  • the shape of the circuit board is circular.
  • the hand-held blowing device further includes a cover plate assembly arranged on one side of the air duct housing, and an end of the central air duct close to the cover plate assembly is provided with a first through hole, and the cover plate assembly A first protruding block is provided thereon, and the first protruding block passes through the first through hole and is clamped with the first through hole so that the cover plate assembly is fixedly connected with the central wind tube.
  • the cover plate assembly is arranged close to the circuit board, the circuit board is provided with a second through hole, and the cover plate assembly is provided with a second protruding block corresponding to the position of the second through hole The second protruding block passes through the second through hole and is clamped with the second through hole so that the cover plate assembly is clamped with the circuit board.
  • the end of the central wind cylinder close to the cover plate assembly is provided with a first thread
  • the cover plate assembly is provided with a second thread that matches the first thread to achieve a threaded connection.
  • the cover plate assembly includes a cover plate body provided on one side of the circuit board, and the second protruding block is provided on the cover plate body.
  • the cover assembly further includes a rear cover provided on one side of the cover body, the cover body is provided with a card slot, and the rear cover is provided with a position corresponding to the card slot.
  • the third protruding block, the third protruding block is clamped and arranged with the card slot.
  • cover plate assembly further includes an end cover provided between the cover body and the rear cover plate, and a third end cover is provided on the end cover to allow the third protruding block to pass through. Through hole.
  • the central air cylinder has an air outlet
  • the hand-held blowing device further includes a nozzle assembly connected with the air outlet to gather the airflow.
  • a hand-held blowing device comprising a holding part, a working part connected to the holding part, and a suction assembly that introduces external airflow to the working part
  • the hand-held blowing device also It includes a tuyere assembly for gathering airflow, the working part has an air outlet, and the tuyere assembly is detachably connected to the air outlet through a connecting component;
  • the connecting assembly includes a first butting piece, and the tuyere
  • the assembly includes a second docking member that is sucked and connected to the first docking member, the first docking member includes a first docking surface, the second docking member has a second docking surface, and the area of the first docking surface It is less than or equal to the area of the first butting surface.
  • one of the first mating member and the second mating member is a magnetic member, and the other of the first mating member and the second mating member is a suction member.
  • the connecting assembly further includes a fixing seat connected to the air outlet, and the first mating member is arranged on the fixing seat by a fastener.
  • a first notch is provided on the air outlet, a first protrusion matching the first notch is provided on the fixing seat, and the first protrusion is connected to the first notch. It is snapped so that the fixing seat is fixed on the air outlet.
  • the fixing seat is also provided with a vent for air flow through, and the vent is provided on the outside of the first butting member.
  • the working part includes a wind tube housing formed with a cavity and a center wind tube arranged in the cavity, and an end of the center wind tube is threadedly connected with the fixing seat.
  • the connecting assembly further includes a collar for connecting the fixing seat and the nozzle assembly, and the collar has a hollow portion to expose the first butting member.
  • a second protrusion is provided on the fixing seat, a second notch that matches the second protrusion is provided on the collar, and the second protrusion is connected to the second notch. It is snapped so that the collar is fixed on the fixing seat.
  • the two sides of the second notch are also provided with limiting blocks for preventing the movement of the second protrusion.
  • the air nozzle assembly further includes a flow guide connected to the second docking member and used for guiding the airflow, and the flow guide is arranged on a side away from the second docking member.
  • a hand-held blowing device including a grip, a working part connected to the grip, a nozzle assembly connected to the working part to gather airflow, and to introduce external airflow to
  • the suction assembly of the working part the working part includes a wind tube housing formed with a cavity and a center wind tube arranged in the cavity, and an air supply is formed between the center wind tube and the wind tube shell
  • the central wind tube extends in the direction of the air nozzle assembly and overlaps with the radial direction of the air outlet direction of the air duct.
  • central air cylinder and the air nozzle assembly form a seal in a radial direction.
  • the air nozzle assembly includes a connecting mechanism connected to the working part, the connecting mechanism includes a fixing seat connected to an end of the central air tube, and a first notch is provided on the air tube shell,
  • the fixing seat is provided with a first protrusion that matches with the first notch, and the first protrusion is engaged with the first notch so that the air duct housing is fixed to the fixing seat on.
  • the connecting mechanism further includes a collar for connecting the fixing seat and the nozzle assembly, the fixing seat is provided with a second protrusion, and the collar is provided with the second protrusion. A matching second notch, the second protrusion is engaged with the second notch so that the collar is fixed on the fixing seat.
  • a sealing ring for enhancing the sealing performance is also arranged between the fixing seat and the air duct shell.
  • the working part further includes a heating assembly for adjusting the temperature of the airflow, and the heating assembly is sleeved on the central wind tube.
  • the heating assembly includes a heating wire sleeved on the central air cylinder and a sleeve arranged on the outside of the heating wire, and the central air cylinder is connected through the fixing seat in the sleeve.
  • the central sleeve includes a first air cylinder and a second air cylinder connected to the first air cylinder and arranged close to the air nozzle assembly, and the heating assembly is arranged on the second air cylinder.
  • the working part further includes a suction component and a heating component for controlling the air suction component and the heating component, and the control component is sleeved on the first air duct.
  • the air suction assembly includes a motor arranged in the holding portion and a fan connected to the motor, the motor has an output shaft, and the fan is connected to the output shaft.
  • the beneficial effect of the present invention is that the central air tube extends in the direction of the air nozzle assembly and overlaps with the radial direction of the air outlet direction of the air duct, so that the sealing effect of the connection between the air nozzle assembly and the central air barrel is better, and the air outlet The airflow at the place is more concentrated;
  • the stability of the heating wire during the working part is better; and the outer side of the heating wire is provided with a sleeve to reduce the heat transfer from the heating wire to the air cylinder shell and prevent scald.
  • a switch assembly including a switch cover, a touch circuit board arranged on the switch cover, and a touch circuit board located on one side of the touch circuit board and used to contact the touch circuit board
  • the switch cover is provided with an elastic mechanism that deforms after the button is applied with an external force and pushes the button in a direction away from the touch circuit board after the external force is removed mobile.
  • the switch cover includes a body part and a button mounting part movable relative to the body part, the button is mounted on the button mounting part, and the button mounting part and the body part are connected by an elastic structure.
  • a hollow part is formed in the body part, and the button installation part is located in the hollow part.
  • the elastic mechanism includes two elastic bodies arranged in a mirror image, and the two elastic bodies are arranged oppositely on both sides of the fixing part.
  • the elastic body has a bent strip structure.
  • the body part, the button mounting part and the elastic mechanism are integrally formed.
  • the touch circuit board is arranged behind the switch cover, and the button is arranged in front of the switch cover.
  • the present invention also provides a hand-held hair dryer, which includes a handle, a head connected to the handle, a suction assembly that introduces external airflow to the head, and is electrically connected to the suction assembly and controls the suction.
  • the switch assembly activated by the wind assembly, wherein the above-mentioned switch assembly is arranged on the handle or the handpiece.
  • a first air duct is formed in the handle, a second air duct communicating with the first air duct is formed in the handpiece, and a second air duct communicating with the first air duct is formed on the handle.
  • An air inlet and a cable opening, a cable electrically connected to the working head is arranged in the first air duct, and the cable passes through the cable opening to the first air duct.
  • the handle includes a connecting piece and a holding shell sleeved outside the connecting piece, and the connecting piece is provided with a switch cover, a touch circuit board and buttons arranged on the switch cover
  • the switch cover is provided with an elastic mechanism that deforms after the button is applied with an external force and pushes the button to move away from the touch circuit board after the external force is removed, so
  • the holding shell is sleeved on the outer periphery of the connecting piece upward from the bottom of the connecting piece, and the button installed on the connecting piece is the button opened on the holding shell The mouth protrudes outward to hold the shell.
  • the beneficial effect of the present invention is that the switch assembly of the present invention is provided with an elastic mechanism on the switch cover, and the elastic mechanism deforms the button after an external force is applied and pushes the button to move away from the touch circuit board after the external force is removed, thereby
  • the switch has a simple structure and is easy to assemble on a hand-held hair dryer.
  • Fig. 1 is a schematic diagram of the structure of the hand-held blowing device of the present invention.
  • FIG. 2 is a schematic diagram of the structure of the grip part in FIG. 1.
  • FIG. 3 is a schematic diagram of a part of the structure of the grip part in FIG. 1.
  • FIG. 4 is a schematic diagram of another part of the structure of the grip in FIG. 1.
  • Fig. 5 is a partial structure diagram in Fig. 1.
  • Fig. 6 is a schematic diagram of the structure of the working part in Fig. 1.
  • Fig. 7 is a schematic diagram of the structure of the working part and the tuyere in Fig. 1.
  • Fig. 8 is a schematic diagram of part of the structure of the working part in Fig. 1.
  • Fig. 9 is an exploded view of the working part in Fig. 1.
  • Fig. 10 is a cross-sectional view of Fig. 1.
  • Fig. 11 is a schematic diagram of the structure of the connecting assembly in Fig. 1.
  • Fig. 12 is an exploded schematic diagram of Fig. 11.
  • Fig. 13 is an exploded schematic diagram of the tuyere assembly in Fig. 1.
  • Fig. 14 is a schematic diagram of the combination of the tuyere assembly and the connecting assembly in Fig. 1.
  • Fig. 15 is a schematic diagram of the structure of the connecting mechanism in Fig. 1.
  • Fig. 16 is an exploded view of Fig. 15.
  • Fig. 17 is a schematic diagram of the structure of the working part, the connecting mechanism and the tuyere assembly in Fig. 1.
  • Fig. 18 is a schematic diagram of the structure of the working part and the connecting mechanism in Fig. 1.
  • Fig. 19 is a cross-sectional view of Fig. 6.
  • 20 is a schematic diagram of the structure of a hand-held hair dryer according to an embodiment of the utility model
  • Figure 21 is an exploded view of Figure 20;
  • Figure 22 is a schematic diagram of the structure of the handle in Figure 20;
  • Figure 23 is a partial exploded view of the handle shown in Figure 22;
  • Figure 24 is an exploded view of the handle shown in Figure 22 in another direction;
  • FIG. 25 is a schematic diagram of the structure of the switch assembly in FIG. 22;
  • Fig. 26 is a schematic structural diagram of the switch assembly shown in Fig. 25 in another direction;
  • Fig. 27 is an exploded view of the switch assembly shown in Fig. 25.
  • the hand-held blowing device 100 in a preferred embodiment of the present invention can be used for dry hair scenes; alternatively, in laboratories, physiotherapy rooms, industrial production, art and other aspects of local drying, heating and physiotherapy scenes, this The application does not limit the application scenarios of the handheld blowing device 100.
  • the hand-held blowing device 100 may include the following components: a holding part 1 and a working part 2 connected to the holding part 1.
  • the working part 2 has an air inlet 26 and an air outlet 27, and the holding part 1 is connected to the air inlet 26.
  • the holding part 1 has a first end 11 connected to the working part 2 and a second end 12 away from the working part 2 and used for air intake.
  • a cable 4 penetrates through the second end 12 to supply power to the hand-held blowing device 100 as a whole.
  • the end of the cable 4 away from the second end 12 is provided with a plug (not shown in the figure), and the plug can provide an electrical connection to the main power source or the battery pack.
  • the cable 4 includes a current-carrying wire (live wire) and a neutral wire (neutral wire).
  • live wire live wire
  • neutral wire neutral wire
  • the cable 4 passes through the second end 12 with a strand of wire, it is divided into at least two strands of wire inside the holding portion 1.
  • the holding part 1 has a holding shell 13 to protect the components inside the holding part 1.
  • the holding shell 13 extends from the working part 2 to the end of the second end 12 away from the working part 2.
  • the cable 4 passes through the holding shell 13 at the position of the second end 12 and enters the holding part 1.
  • the cable 4 is generally positioned in the middle of the second end 12 and extends toward the inner center of the grip 1.
  • the gripping portion 1 has a tubular structure as a whole and has a substantially uniform diameter.
  • the holding portion 1 may also have other shapes, which is not limited in this embodiment.
  • the grip part of the holding shell 13 may be provided with a non-slip component; or, the material of the grip part of the holding shell 13 is non-slip. material.
  • the hand-held blowing device 100 of this embodiment further includes a suction assembly 14 for introducing external airflow to the working part 2.
  • the suction assembly 14 is arranged in the holding part 1 to suck and guide the external airflow from the second end 12 To work department 2.
  • the air suction assembly 14 includes a motor 141 and a fan.
  • the motor 141 and the fan can be integrated; or, they can also be separated, which is not limited in this embodiment.
  • the motor 141 may be an AC induction motor, a series-excited AC/DC motor, or a DC motor, etc.
  • the type of the motor 141 is not limited in this embodiment.
  • the holding shell 13 extends from the working part 2 to the end of the second end 12 away from the working part 2.
  • the cable 4 passes through the holding shell 13 at the position of the second end 12 and enters the holding part 1.
  • the cable 4 is generally positioned in the middle of the second end 12 and extends toward the inner center of the grip 1.
  • the gripping portion 1 has a tubular structure as a whole and has a substantially uniform diameter.
  • the holding portion 1 may also have other shapes, which is not limited in this embodiment.
  • the grip part of the holding shell 13 may be provided with a non-slip component; or, the material of the grip part of the holding shell 13 is non-slip. material.
  • the holding part 1 further includes a holding inner shell 15 arranged in the hollow part.
  • the holding inner shell 15 is provided with a guiding part 16 for guiding the airflow.
  • the guiding part 16 guides the airflow from the air inlet 26 to the air outlet 27.
  • the holding inner shell has an inner surface 151
  • the flow guiding portion 16 is a protruding block 16 protruding from the inner surface 151
  • the protruding block 16 has a vertical surface 161 that is perpendicular to the inner surface 151 and is used to connect the vertical surface 161 and
  • the inclined surface 162 of the inner surface 151 is inclined from an end close to the air inlet 26 to an end away from the air inlet 26.
  • the cross section of the protruding block 16 is trapezoidal or triangular, and an included angle is formed between the inclined surface 162 and the vertical surface 161, and the range of the included angle is greater than 0° and less than 90°. It is true that the cross section of the protruding block 16 can also be other, and the angle between the inclined surface 162 and the vertical surface 161 can also be other, which is not specifically limited here.
  • the inner surface 151 is a wavy surface connected to the vertical surface 161 to better guide the airflow to the guide portion 16. It is true that in other embodiments, the inner surface 151 can also be another surface for guiding, which is not specifically limited here, and it depends on the actual situation.
  • a first touch component 5 is further provided on the holding portion 1, and the first touch component 5 is used to receive a first touch operation to adjust the working state of the hand-held blowing device 100. For example: adjust the on-off state of the hand-held blowing device 100 according to the first touch operation.
  • the first touch component 5 may be implemented as a button component (that is, a touch component based on physical buttons), or a touch display component (that is, a touch component based on virtual buttons), etc., in this embodiment The implementation of the first touch component 5 is not limited.
  • the working part 2 includes a blower housing 21 formed with a cavity, a central blower 22 arranged in the cavity, a heating component 23 sleeved on the central blower 22 to adjust the temperature, and
  • the central air duct 22 is connected to the control assembly 24 for controlling the air suction assembly 14 and the heating assembly 23, and the cover assembly 25 covering one side of the air duct housing 21, the air suction assembly 14, the heating assembly 23 and the control assembly 24 Electrically connected, the control assembly 24 is electrically connected to the cable 4.
  • control component 24 is a double-layer circuit board 241
  • the central air duct 22 has an outer peripheral surface
  • the double-layer circuit board 241 is sleeved on the outer peripheral surface to be fixed to the central air duct 22.
  • the double-layer circuit boards 241 are both On the PCB board
  • the heating component 23 is a heating wire 231. It is true that in other embodiments, the double-layer circuit board 241 may also be other, and the heating element 23 may also be other, which depends on the actual situation and is not specifically limited here.
  • the air duct housing 21 is circular to match the shape of the central air duct 22. It is true that in other embodiments, the air duct housing 21 can also be other, which is not specifically limited here, and it depends on the actual situation.
  • the working part 2 also includes a windshield ring 28 which is arranged in the cavity and cooperates with the guide part 16 to guide the airflow to the air outlet 27.
  • the windshield ring 28 is arranged at the air inlet 26, and the windshield ring 28 is sleeved on the central wind.
  • the barrel 22 is inclined and arranged toward the air outlet 27.
  • the air guiding portion 16 is arranged close to the side of the wind deflector 28 close to the air inlet 26 or coaxially arranged with the side of the wind deflector 28 close to the air inlet 26.
  • the heating assembly 23 is arranged close to the air inlet 26, and the control assembly 24 is arranged on one side of the windshield ring 28 and away from the heating assembly 23, so that the air flow can directly flow from the air inlet 26 through the heating assembly 23 to the air outlet 27. As indicated by the arrow direction in FIG. 10, the airflow flows to the air outlet 27 under the interaction of the deflector 16 and the windshield ring 28.
  • the double-layer circuit board 241 is used to control the operating parameters of the hand-held blowing device 100. For example: adjusting the heating power of the heating assembly 23, the rotation speed of the suction assembly 14 and other working parameters.
  • the hand-held blowing device 100 is provided with a second touch component 6 and a third touch component 7, and both the second touch component 6 and the third touch component 7 are electrically connected to the double-layer circuit board 241.
  • the second touch control component 6 is used to receive the second touch operation so that the double-layer circuit board 241 adjusts the heating power of the heating component 23, so as to adjust the air outlet temperature of the double-layer circuit board 241.
  • the third touch control component 7 is used to receive the third touch operation so that the double-layer circuit board 241 can adjust the rotation speed of the air suction component 14, so as to adjust the air outlet speed of the double-layer circuit board 241.
  • the second touch component 6 and the third touch component 7 are arranged on the cover assembly 25; of course, in actual implementation, the second touch component 6 and the third touch component 7 can also be arranged on other The position, for example, on the holding part 1, the present embodiment does not limit the installation positions of the second touch component 6 and the third touch component 7.
  • this embodiment only uses the two-layer circuit board 241 to control the heating power of the heating assembly 23 and the rotational speed of the suction assembly 14 as examples for description. In actual implementation, other operating parameters can also be added to control them accordingly.
  • the handheld blowing device 100 can also integrate more touch components, which will not be listed here in this embodiment.
  • the second touch component 6 and the third touch component 7 can be implemented as button components (that is, touch components based on physical buttons), or touch display components (that is, touch components based on virtual buttons). ) Etc., this embodiment does not limit the implementation of the second touch component 6 and the third touch component 7.
  • first touch component 5 the second touch component 6 and the third touch component 7 can also be implemented as one touch component, and the touch component has multiple adjustments.
  • the central air cylinder 22 has an air outlet 224.
  • the handheld blowing device 100 also includes a nozzle assembly 3 connected with the air outlet 27 to gather the airflow.
  • the connection method is not limited to bolt connection, thread connection, clamp connection and other connection methods.
  • the component 3 is used to output the air flow heated by the heating component 23 from the hand-held blowing device 100.
  • the air nozzle assembly 3 is detachably mounted on the hand-held blowing device 100; or, it is integrated with the central air cylinder 22.
  • the nozzle assembly 3 can change the shape and speed of the airflow in the hand-held blowing device 100, and can converge and output the wind heated by the heating component 23 to the outside of the hand-held blowing device 100.
  • the shape of the tuyere assembly 3 is not specifically limited here, and it depends on the actual situation.
  • the central air tube 22 includes a first air tube 221 arranged close to the cover assembly 25 and a second air tube 222 arranged in communication with the first air tube 221.
  • the diameter of the first air tube 221 is smaller than the diameter of the second air tube 222.
  • the layered circuit board 241 is sleeved on the first air cylinder 221, the heating element 23 is sleeved on the second air cylinder 222, and the air flow flows from the first air cylinder 221 to the second air cylinder 222.
  • the purpose of this design is: The air flow is heated by the heating assembly 23, and another convenience makes the overall appearance of the hand-held blowing device 100 more beautiful.
  • the shape of the double-layer circuit board 241 is circular. It is true that in other embodiments, the shape of the double-layer circuit board 241 may also be other, which depends on the actual situation and is not specifically limited here.
  • the end of the central air cylinder 22 close to the cover plate assembly 25 is provided with a first thread, and the cover plate assembly 25 is provided with a second thread that matches the first thread to realize a threaded connection.
  • the center air cylinder 22 is provided with a first through hole 223 at one end close to the cover plate assembly 25.
  • the cover plate assembly 25 is provided with a first protruding block.
  • the first protruding block passes through the first through hole 223 and is connected to the first through hole. 223 is clamped so that the cover plate assembly 25 is fixedly connected to the central air cylinder 22, that is, in this embodiment, the end of the first air cylinder 221 is provided with a first through hole 223.
  • the end of the first protruding block protruding from the first through hole 223 is also provided with a fastener to prevent the first protruding block from slipping. ⁇ first through hole 223.
  • Fasteners are conventional settings, so I won’t repeat them here.
  • the cover assembly 25 is arranged close to the double-layer circuit board 241, and includes a cover body 251 arranged on the side of the double-layer circuit board 241, a rear cover 253 arranged on the side of the cover body 251, and the rear cover 253 and the cover.
  • the first protruding block is arranged at the center of the cover body 251.
  • the cover body 251, the rear cover 253 and the end cover 252 are all round to cover the air duct housing 21.
  • the cover body 251, the rear cover 253, and the end cover 252 may also have other shapes, which are not specifically limited here.
  • the double-layer circuit board 241 is provided with a second through hole 242, and the cover plate assembly 25 is provided with a second protruding block corresponding to the position of the second through hole 242.
  • the second protruding block passes through the second through hole 242 and connects with The second through hole 242 is clamped so that the cover plate assembly 25 and the double-layer circuit board 241 are clamped.
  • the second protruding block is provided on the cover body 251.
  • the cover body 251 is provided with a card slot
  • the rear cover plate 253 is provided with a third protruding block 2531 corresponding to the position of the card slot, and the third protruding block 2531 is clamped and arranged with the card slot.
  • the cover plate assembly 25 further includes an end cover 252 disposed between the cover body 251 and the rear cover plate 253, and the end cover 252 is provided with a third through hole 2521 through which the third protruding block 2531 passes.
  • the holding part 1 is provided with a guide part 16 near the air inlet 26 of the working part 2, and the guide part 16 is used to guide the airflow from the air inlet 26 to the air outlet 27 to prevent the airflow from being
  • a turbulent flow is formed in the working part 2, so that the air flow at the air outlet 27 is smooth, which indirectly achieves the effect of solving resources;
  • the windshield ring 28 is arranged above the guide portion 16 to prevent the air flow from flowing in a direction away from the air outlet 27, thereby allowing more air flow to flow to the air outlet 27, which is convenient and efficient.
  • the hand-held blowing device 100 also includes a nozzle assembly 3 for gathering the air flow, a gap is formed between the air tube housing 21 and the central air tube 22 to allow the air flow to pass, and the working part 2 has an air outlet ,
  • the air nozzle assembly 3 is detachably connected to the air outlet through the connecting assembly 8.
  • the connecting assembly 8 includes a first docking member 81
  • the nozzle assembly 3 includes a second docking member 31 that is sucked and connected to the first docking member 81
  • the first docking member 81 includes a first docking surface 811
  • a second docking member 31 There is a second mating surface 312, and the area of the first mating surface 811 is smaller than or equal to the area of the first mating surface 811.
  • One of the first docking member 81 and the second docking member 31 is a magnetic member
  • the other of the first docking member 81 and the second docking member 31 is a suction member.
  • the connecting assembly 8 further includes a fixing seat 82 connected to the air outlet.
  • the end of the central air cylinder 22 is threadedly connected to the fixing seat 82, and the first mating member 81 is arranged on the fixing seat 82 by a fastener.
  • a first notch 211 is provided on the air outlet. More specifically, a first notch 211 is provided on the air duct housing 21, and a first protrusion 821 that matches the first notch 211 is provided on the fixing seat 82. The first protrusion 821 is engaged with the first notch 211 so that the fixing seat 82 is fixed on the air outlet.
  • the fixing seat 82 is also provided with a vent 822 for allowing air flow to pass, and the vent 822 is provided on the outside of the first docking member 81.
  • a sealing element to enhance the sealing performance is also provided between the fixing seat 82 and the air duct housing 21.
  • the connecting assembly 8 further includes a collar 83 for connecting the fixing seat 82 and the nozzle assembly 3, and the collar 83 has a hollow portion so that the first docking member 81 is exposed.
  • the fixing seat 82 is provided with a second protrusion 823, the collar 83 is provided with a second notch 831 matching the second protrusion 823, and the second protrusion 823 is engaged with the second notch 831 to make the collar 83 is fixed on the fixing base 82.
  • the two sides of the second notch 831 are also provided with limiting blocks to prevent the second protrusion 823 from moving.
  • the second docking member 31 is provided with a vent 311 corresponding to the vent 822, and the tuyere assembly 3 further includes a guide member 32 connected to the second docking member 31 and used to guide airflow.
  • the guide member 32 is provided On the side facing away from the second connecting member 31, the air nozzle assembly 3 further includes a wind hood 33 sleeved on the side of the guide member 32 and used to gather the airflow.
  • first docking member 81 is a magnetic member
  • second docking member 31 is a suction member
  • first docking member 81 may also be a suction member
  • second docking member 31 may also be a magnetic member, which is not specifically limited here, and depends on the actual situation.
  • the connecting assembly 8 connected to the tuyere assembly 3 is provided at the air outlet, and the connecting assembly 8 is sucked and docked with the second butting piece 31 of the tuyere assembly 3 through the first butting piece 81 provided with the nozzle assembly 3.
  • the area of the first mating surface 312 is less than or equal to the area of the second mating surface 811, so that the connection relationship between the nozzle assembly 3 and the connecting assembly 8 is more stable, and it is not easy to fall.
  • an air duct for air flow is formed between the central air duct 22 and the air duct housing 21, and the central air duct 22 extends in the direction of the tuyere assembly 3 and is in the radial direction of the air outlet direction of the air duct.
  • An overlap is formed, that is, the central air tube 22 and the air nozzle assembly 3 form a seal in the radial direction.
  • the air nozzle assembly includes a connecting mechanism connected to the working part, and the connecting mechanism 8 is provided with a vent 84 for allowing air flow to pass through and flow to the air nozzle assembly 3, and the connecting mechanism 8 includes a connection with the end of the central air cylinder 22
  • the fixed seat 81 and the vent 84 are arranged on the fixed seat 81.
  • the central sleeve 22 includes a first air cylinder 221 and a second air cylinder 222 connected to the first air cylinder 221 and arranged close to the nozzle assembly 3, the heating assembly 23 is arranged on the second air cylinder 222, and the control assembly 24 is sleeved on On the first wind cylinder 221.
  • the air flow flows from the first air cylinder 221 to the second air cylinder 222.
  • the purpose of this design is: on the one hand, the air flow is heated by the heating assembly 23, and on the other hand, it is convenient to make the overall appearance of the hand-held blowing device 100 more beautiful.
  • the first air cylinder 221 is arranged close to the cover plate assembly 25, and the end of the second air cylinder 222 is provided with threads connected to the fixing base 81, so that the central air cylinder 22 and the fixing base 81 are closely connected.
  • the blower housing 21 is provided with a first notch 211
  • the fixing seat 81 is provided with a first protrusion 811 that matches the first notch 211
  • the first protrusion 811 is engaged with the first notch 211 to make the wind
  • the barrel housing 21 is fixed on the fixing seat 81.
  • the connecting mechanism 8 further includes a collar 83 for connecting the fixing seat 81 and the nozzle assembly 3.
  • the collar 83 is arranged on the fixing seat 81, the fixing seat 81 is provided with a second protrusion 812, and the collar 83 is provided There is a second notch 831 matching the second protrusion 812, and the second protrusion 812 is engaged with the second notch 831 so that the collar 83 is fixed on the fixing seat 81.
  • a sealing ring 82 is also provided between the fixing seat 81 and the collar 83 to enhance the sealing performance.
  • the heating element 23 is sleeved on the central air cylinder 22.
  • the heating element 23 includes a heating wire 231 sleeved on the central air cylinder 22 and a sleeve 232 arranged on the outside of the heating wire 231, that is, the The sleeve 232 is sleeved on the heating wire 231.
  • the heating wire 231 is sleeved on the second air cylinder 222 and is arranged close to the connecting mechanism 8.
  • the end of the second air cylinder 222 passes through the sleeve 232 and is connected to the fixing seat 81.
  • the purpose of this setting is to:
  • the wire 231 is sleeved on the second air cylinder 222 to make it more stable in connection with the second sleeve 222, and a sleeve 232 is provided on the outside of the heating wire 231 to reduce the transmission of the heating wire 231 to the air cylinder housing 21 The heat prevents burns.
  • Figure 20 and Figure 21 are a hand-held hair dryer 10 provided by an embodiment of the present application
  • the hand-held hair dryer 10 can be used in the dry hair scene; or, laboratories, physiotherapy rooms, industrial production, art, etc.
  • the application does not limit the application scenarios of the hand-held hair dryer 10 in this application.
  • the hand-held hair dryer 10 may include the following components: a handle 20 and a head 30 connected to the handle 20.
  • the handle 20 has a first end 201 connected to the handpiece 30 and a second end 202 away from the handpiece 30 and used for air intake.
  • a cable 60 runs through the second end 202 to supply power to the hand-held hair dryer 10 as a whole.
  • the end of the cable 60 away from the second end 202 is provided with a plug (not shown), and the plug can provide an electrical connection to a main power source or a battery pack.
  • the cable 60 includes a current-carrying wire (live wire) and a neutral wire (neutral wire).
  • live wire live wire
  • neutral wire neutral wire
  • the cable 60 passes through the second end 202 with a strand of wire, it is divided into at least two strands of wire inside the handle 20.
  • the handle 20 includes a holding shell 21 to protect the components inside the handle 20.
  • the cable 60 enters the handle 20 through the holding housing 21 at the position of the second end 202.
  • the cable 60 is generally positioned in the middle of the second end 202 and extends toward the inner center of the handle 20.
  • the handle 20 has a tubular structure as a whole and has a substantially uniform diameter.
  • the handle 20 can also have other shapes, which is not limited in this embodiment.
  • the grip part of the grip housing 21 may be provided with a non-slip component (not shown); or, the material of the grip part on the grip housing 21 is a non-slip material .
  • a first air duct 22 is formed in the handle 20, and the first air duct 22 penetrates the first end 201.
  • the handle 20 is formed with an air inlet 221 and a cable opening 222 communicating with the first air duct 22, and the cable opening 222 is located below the air inlet 221.
  • the cable opening 222 penetrates the second end 202.
  • the cable 252 is arranged in the first air duct 22, and the cable 60 passes through the cable opening 222 to the first air duct 22.
  • An air suction assembly 40 is provided inside the handle 20, and the air suction assembly 40 is used for sucking the external air flow from the air inlet 221 and guiding it to the nose 30 via the first air duct 22.
  • the air suction assembly 40 is a motor integrated with a fan.
  • the motor may be an AC induction motor, a series AC/DC motor, or a DC motor.
  • the type of the air suction assembly 40 is not limited in this embodiment.
  • the air suction assembly 40 is arranged in the first air duct 22 to allow the air suction assembly 40 to cool down.
  • the handle 20 further includes a connecting piece 23 for docking with the handpiece 30.
  • the first end 201 and the second end 202 are formed on the connecting piece 23 and are opposite ends of the connecting piece 23.
  • the holding shell 21 is sleeved outside the connecting piece 23.
  • the first air duct 22 is formed in the connecting piece 23.
  • the connecting piece has a half-half structure and includes a first injection molded body 231 and a second injection molded body 232 that are arranged in opposite directions.
  • the first air channel 22 is formed by the first injection molded body.
  • the body 231 and the second injection molded body 232 are surrounded and formed, and the first injection molded body 231 and the second injection molded body 232 are connected by a fastener or a clamping method.
  • the first injection molded body 231 and the second injection molded body 232 are connected by fasteners (not labeled).
  • the connecting piece 23 extends along the longitudinal direction of the handle 20 and is distinguished by the functional area of the connecting piece 23.
  • the connecting piece 23 has a connecting portion 233 forming the first air duct 22 and a base 234 formed at the bottom end of the connecting portion 233, and holds the housing 21 is installed on the connecting part 233, the air inlet 221 and the cable opening 222 are located under the holding housing 21.
  • the air inlet 221 is opened on the connecting portion 233, and the cable opening 222 penetrates the base 234.
  • the position of the base 234 is the second end 201.
  • a cable protective sleeve 24 is provided between the base 234 and the cable 60 to protect the cable 60, reduce the abrasion between the cable 60 and the base 234, and prevent waterproofing.
  • the cable protective sleeve 24 is made of rubber
  • the cable protective cover 24 includes a built-in portion 241 located in the connector 23 and a tube 242 extending downward from the built-in portion 241 and extending through the cable opening 222.
  • the built-in portion 241 is an annular sheet-shaped body, the tube body 242 is inverted cone shape, and the larger diameter end of the tube body 242 is located in the connecting piece 23 to prevent the cable protective sleeve 24 from shaking relative to the base 234.
  • the handle 20 also includes a filter screen assembly 25 sleeved on the connector.
  • the filter screen assembly 25 includes a filter screen 251 sleeved on the connector 233 and a ventilation ring 252 sleeved on the filter screen 251.
  • the filter screen 251 covers the The air outlet 221 and the base 234 filter the dust and other impurities in the external air flow entering the air inlet 221 by the filter assembly 25, thereby improving the service life of the hand-held hair dryer.
  • the bottom of the filter screen 251 is provided with a through hole 253 corresponding to the cable opening 222, so that the cable 60 can pass through the filter screen 251 to be connected to the outside.
  • the handle 20 is also provided with a switch assembly 50, and the switch assembly 50 is electrically connected to the air suction assembly 40 and controls the operation of the air suction assembly 40.
  • the switch assembly 50 is serially connected to the cable 60.
  • the switch assembly 50 includes a switch cover 51 disposed on the connecting member 23, a touch circuit board 52 disposed on the switch cover 51, and a touch circuit board 52 located on one side of the touch circuit board 52 and used to contact the touch circuit board 52 to form a trigger signal Button 53.
  • the switch assembly 50 is arranged on the handle 20 to facilitate one-handed operation.
  • the holding shell 21 is sleeved on the outer periphery of the connecting piece 23 from the bottom 23 of the connecting piece upwards, and the button 53 installed on the connecting piece 23 is self-contained from the button 53 opened on the holding shell 21 The mouth protrudes outward to hold the housing 21.
  • the switch assembly 50 can also be arranged on the handpiece 30.
  • the switch cover 51 is provided with an elastic mechanism 511.
  • the elastic mechanism 511 deforms after the button 53 is applied with an external force and pushes the button 53 to move away from the touch circuit board 52 after the external force is removed.
  • the movement direction of the button 53 driven by the elastic mechanism 511 can be along the surface of the switch cover 51 or along the thickness direction of the switch cover 51. In this embodiment, the movement direction of the button 53 driven by the elastic mechanism 511 is along the switch cover 51. Moves in the thickness direction, that is, the button 53 is a push button.
  • the touch circuit board 52 is arranged behind the switch cover 51, and the button 53 is arranged in front of the switch cover 51.
  • the switch cover 51 includes a body portion 512 and a button mounting portion 513 movable relative to the body portion 512.
  • the button 53 is mounted on the button mounting portion 513, and the button mounting portion 513 and the body portion 512 are connected by an elastic structure 511.
  • the main body portion 512, the button installation portion 513, and the elastic mechanism 511 may have a split structure.
  • the main body portion 512, the button installation portion 513, and the elastic mechanism 511 are integrally formed.
  • a hollow part 514 is formed in the main body part 512, and the button installation part 513 is located in the hollow part 514.
  • the elastic mechanism 511 includes two elastic bodies (not numbered) arranged in a mirror image, and the two elastic bodies are arranged oppositely on both sides of the fixing part.
  • the elastic body can have any structure.
  • the elastic body is a bent strip structure.
  • the touch circuit board 52 and the button 53 are used to control the heating and cooling of the hand-held hair dryer, and to control the heating element (described in detail later). Therefore, the button 53 can be referred to as a heating and cooling button. It is true that in other embodiments, the touch circuit board 52 and the button 53 can also be used to control other functions, or the touch circuit board 52 and the button 53 directly control the hand-held hair dryer.
  • the switch assembly 50 also includes a power button 56 arranged on the switch cover 51 and a connector 57 connected in series to the power button 56.
  • the power button 56 is connected in series with the touch circuit board 52 and the hot and cold buttons 53.
  • a plug connector 571 is formed on the plug connector 57, and the plug connector 571 protrudes from the first end 201.
  • the power button 56 is a sliding button, and the power button 56 is fixed on the connector 57 through the sliding plate shell 58.
  • the working principle and structure of the power button 56 are in the prior art, so it will not be described in detail.
  • the handle 20 is formed with a mounting cavity 26 for accommodating the above-mentioned switch assembly 50.
  • the mounting cavity 26 is located on one side of the first air duct 22.
  • the connecting piece 23 is separated, and the mounting cavity 26 is formed by surrounding the connecting piece 23 and the holding shell 21.
  • the holding shell 21 is provided with a button opening 211 for exposing the hot and cold button 53 and the power button 56.
  • One side of the mounting cavity 26 is formed with a plug-in port 261 for allowing the electrical plug connector 571 to protrude from the first end 201, and a sealing ring 59 is provided between the plug-in port 261 and the plug connector 571 (see Figures 27 and 9) .
  • the head 30 includes an air duct 31, an air duct 32 nested outside the air duct 31, a nozzle assembly 33 installed at the front end of the air duct 31 and the air duct 32, and installed on the air duct 31
  • the end cover assembly 34 at the rear end of the air duct 31 and the air duct 32, and an outer tube 39 covering the air guide tube 31 and the air duct 32.
  • the two ends of the outer cylinder 39 are respectively butted with the tuyere assembly 33 and the butting end cover assembly 34.
  • An electric control component is provided on the side of the air duct 31 close to the end cover component 34.
  • the electric control component is a printed circuit board (PCB) 35.
  • a second air duct 36 communicating with the first air duct 22 is formed in the nose 30, and the second air duct 36 is formed between the air guide pipe 31 and the air duct 32.
  • a functional component electrically connected to the switch component 40 is provided in the handpiece 30, wherein the functional component includes a heating component 70.
  • the heating assembly 70 is arranged on the air guiding pipe 31 and installed in the second air duct 36 between the air guiding pipe 31 and the air cylinder 32.
  • the heating assembly 70 may be implemented as an electric heating wire for electromagnetic heating or an electric heating wire for resistance heating, and the implementation of the heating assembly 70 is not limited in this embodiment.
  • the air suction component 40, the switch component 50, the touch component 25 and the heating component 70 are all electrically connected to the printed circuit board 35, wherein the switch component 50 is used to control the on or off of the printed circuit board 35, and the switch component 50 passes therethrough
  • the plug connector is electrically connected to the printed circuit board 35.
  • the switch assembly 50 is arranged in 20
  • the printed circuit board 35 is arranged in the machine head 30, and the switch assembly 50 is electrically connected through a plug connector 571.
  • the printed circuit board 35 can be realized as an annular sleeve on the air duct 31.
  • the number of layers of the printed circuit board 35 may be a single layer; or, it may also be multiple layers. The present embodiment does not limit the number of layers of the printed circuit board 35.
  • the printed circuit board 35 is used to control the operating parameters of the hand-held hair dryer 10. For example: adjusting the heating power of the heating assembly 70, the rotation speed of the suction assembly 40 and other working parameters.
  • the hand-held hair dryer 10 is provided with a second touch component 36 and a third touch component 37, and both the second touch component 36 and the third touch component 37 are electrically connected to the printed circuit board 35.
  • the second touch control component 36 is used to receive the second touch operation so that the printed circuit board 35 can adjust the heating power of the heating component 70, so as to adjust the air outlet temperature of the hand-held hair dryer 10.
  • the third touch component 37 is used to receive the third touch operation so that the printed circuit board 35 adjusts the rotation speed of the suction component 40 of the hand-held hair dryer 10, so as to realize the adjustment of the wind speed of the hand-held hair dryer 10.
  • the second touch component 36 and the third touch component 37 are disposed on the end cover component 34; of course, in actual implementation, the second touch component 36 and the third touch component 37 can also be disposed on other The position, for example, on the handle 10, this embodiment does not limit the installation positions of the second touch component 36 and the third touch component 37.
  • this embodiment only uses the printed circuit board 35 to control the heating power of the heating assembly 70 and the rotation speed of the suction assembly 40 as an example for description. In actual implementation, other operating parameters can also be added to control them accordingly. More touch components can be integrated on the hand-held hair dryer 10, which will not be listed here in this embodiment.
  • the second touch component 36 and the third touch component 37 can be implemented as button components (that is, touch components based on physical buttons), or touch display components (that is, touch components based on virtual buttons), etc., This embodiment does not limit the implementation of the second touch component 36 and the third touch component 37.
  • the nozzle assembly 33 is used to output the wind heated by the heating assembly 70 from the hand-held hair dryer 10.
  • the air nozzle assembly 33 is detachably mounted on the hand-held hair dryer 10; or, it is made integrally with the air cylinder 32.
  • the air nozzle assembly 33 can change the shape and speed of the wind in the hand-held hair dryer 10, and can converge and output the wind heated by the heating component 70 to the outside of the hand-held hair dryer 10.
  • the head 30 also includes a docking portion 38 protruding into the first end 201, the docking portion 38 is clamped and connected to the connecting piece 23, and the butting portion 38 is respectively connected to the first injection molded body 231 and the second injection molded body 232 of the connecting piece 23 (See Figure 24) After the clamping connection, the first injection molded body 231 and the second injection molded body 232 are connected by a fastener or a clamping method.
  • the docking portion 38 is provided with a clamping groove 381, and the first injection molded body 231 and the second injection molded body
  • the body 232 is respectively provided with clamping blocks (not labeled) that are matched with the corresponding clamping blocks.
  • the first injection molded body 231 and the second injection molded body 232 are connected to the first injection molded body 231 and the second injection molded body 232 through the docking portion 38 respectively by a fastener or a clamping method, which makes the assembly easier and more convenient.

Landscapes

  • Cleaning And Drying Hair (AREA)

Abstract

La présente invention concerne un dispositif de sèche-cheveux portatif comprenant une partie de préhension, une partie active reliée à la partie de préhension, et un ensemble d'aspiration d'air qui est disposé à l'intérieur de la partie de préhension et qui amène l'air à s'écouler dans la partie active. La partie active est pourvue d'une entrée d'air et d'une sortie d'air, et la partie de préhension est reliée à l'entrée d'air. La partie de préhension comprend une coque externe de préhension dans laquelle est formée une partie creuse, et une coque interne de préhension disposée à l'intérieur de ladite partie creuse, une partie de guidage d'écoulement utilisée pour guider l'écoulement d'air étant disposée sur la coque interne de préhension, et la partie de guidage d'écoulement guidant l'écoulement d'air de l'entrée d'air à la sortie d'air. Au moyen de l'agencement d'une partie de guidage d'écoulement au niveau d'une position d'une partie de préhension à proximité d'une entrée d'air d'une partie active, la partie de guidage d'écoulement étant utilisée pour guider un écoulement d'air de l'entrée d'air à la sortie d'air, l'écoulement d'air ne devient pas turbulent à l'intérieur de la partie active, ce qui amène l'écoulement d'air à être régulier au niveau de la sortie d'air, et à obtenir indirectement l'effet de conservation des ressources.
PCT/CN2020/113670 2019-09-12 2020-09-07 Dispositif de sèche-cheveux portatif WO2021047462A1 (fr)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
CN201921522059.1 2019-09-12
CN201921523234.9 2019-09-12
CN201921523234.9U CN211130021U (zh) 2019-09-12 2019-09-12 开关组件及手持吹风机
CN201910865992.7 2019-09-12
CN201921522089.2U CN210581441U (zh) 2019-09-12 2019-09-12 手持吹风设备
CN201921522089.2 2019-09-12
CN201921523220.7U CN210672442U (zh) 2019-09-12 2019-09-12 手持吹风设备
CN201921523221.1 2019-09-12
CN201910865992.7A CN110448028A (zh) 2019-09-12 2019-09-12 手持吹风设备
CN201921522059.1U CN210672439U (zh) 2019-09-12 2019-09-12 手持吹风设备
CN201921523220.7 2019-09-12
CN201921523221.1U CN210581451U (zh) 2019-09-12 2019-09-12 手持吹风设备

Publications (1)

Publication Number Publication Date
WO2021047462A1 true WO2021047462A1 (fr) 2021-03-18

Family

ID=74866069

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/113670 WO2021047462A1 (fr) 2019-09-12 2020-09-07 Dispositif de sèche-cheveux portatif

Country Status (1)

Country Link
WO (1) WO2021047462A1 (fr)

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CN110448028A (zh) * 2019-09-12 2019-11-15 追觅科技（天津）有限公司 手持吹风设备
CN110973801A (zh) * 2019-12-24 2020-04-10 追觅科技(上海)有限公司 手持吹风设备
CN210581451U (zh) * 2019-09-12 2020-05-22 追觅科技（天津）有限公司 手持吹风设备
CN210581441U (zh) * 2019-09-12 2020-05-22 追觅科技（天津）有限公司 手持吹风设备
CN210672442U (zh) * 2019-09-12 2020-06-05 追觅科技（天津）有限公司 手持吹风设备
CN210672439U (zh) * 2019-09-12 2020-06-05 追觅科技（天津）有限公司 手持吹风设备
CN211130021U (zh) * 2019-09-12 2020-07-31 追觅科技（天津）有限公司 开关组件及手持吹风机
CN211794799U (zh) * 2020-01-19 2020-10-30 追觅科技(上海)有限公司 手持式吹风机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101277264B1 (ko) * 2011-09-02 2013-06-26 쎄라텍(주) 세라믹히터를 갖는 헤어드라이기
CN105407757A (zh) * 2013-07-05 2016-03-16 戴森技术有限公司 手持式器具
CN104337192A (zh) * 2013-07-24 2015-02-11 戴森技术有限公司 用于手持器具的附件
CN107965458A (zh) * 2017-12-19 2018-04-27 广东美的环境电器制造有限公司 一种扇头组件及无叶吹风设备
CN110448028A (zh) * 2019-09-12 2019-11-15 追觅科技（天津）有限公司 手持吹风设备
CN210581451U (zh) * 2019-09-12 2020-05-22 追觅科技（天津）有限公司 手持吹风设备
CN210581441U (zh) * 2019-09-12 2020-05-22 追觅科技（天津）有限公司 手持吹风设备
CN210672442U (zh) * 2019-09-12 2020-06-05 追觅科技（天津）有限公司 手持吹风设备
CN210672439U (zh) * 2019-09-12 2020-06-05 追觅科技（天津）有限公司 手持吹风设备
CN211130021U (zh) * 2019-09-12 2020-07-31 追觅科技（天津）有限公司 开关组件及手持吹风机
CN110973801A (zh) * 2019-12-24 2020-04-10 追觅科技(上海)有限公司 手持吹风设备
CN211794799U (zh) * 2020-01-19 2020-10-30 追觅科技(上海)有限公司 手持式吹风机

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