WO2021129225A1 - Sèche-cheveux et élément détachable - Google Patents

Sèche-cheveux et élément détachable Download PDF

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Publication number
WO2021129225A1
WO2021129225A1 PCT/CN2020/128733 CN2020128733W WO2021129225A1 WO 2021129225 A1 WO2021129225 A1 WO 2021129225A1 CN 2020128733 W CN2020128733 W CN 2020128733W WO 2021129225 A1 WO2021129225 A1 WO 2021129225A1
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WO
WIPO (PCT)
Prior art keywords
hair dryer
air inlet
main body
air
dryer according
Prior art date
Application number
PCT/CN2020/128733
Other languages
English (en)
Chinese (zh)
Inventor
朱文超
许飞翔
宋康
袁思源
Original Assignee
添可智能科技有限公司
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 CN201911369189.0A external-priority patent/CN113040499A/zh
Priority claimed from CN201911369181.4A external-priority patent/CN113040498A/zh
Priority claimed from CN201911369138.8A external-priority patent/CN113040494A/zh
Priority claimed from CN201911371261.3A external-priority patent/CN113040500A/zh
Priority claimed from CN201911369176.3A external-priority patent/CN113040497A/zh
Priority claimed from CN202010203437.0A external-priority patent/CN113491379B/zh
Application filed by 添可智能科技有限公司 filed Critical 添可智能科技有限公司
Publication of WO2021129225A1 publication Critical patent/WO2021129225A1/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

Definitions

  • This application relates to the field of mechanical technology, and in particular to a hair dryer and a detachable part.
  • a hair dryer is a small household appliance that people often use in daily life. It generally consists of a hair dryer body and a tuyere. The airflow generated by the hair dryer body can be discharged through the tuyere for users to use.
  • the nozzle is generally directly fixed on the body of the hair dryer, or the two are connected by a buckle.
  • the currently used connection method has certain defects. For example, in the case of a fixed connection, the nozzles with different functions cannot be replaced. In the case of buckle connection, it is very cumbersome to use, and it is necessary to align the position of the locking part of the buckle to achieve locking. Moreover, the locking parts of the buckle are prone to wear and tear, resulting in improper assembly, etc., making the fixed fruit worse and worse, and the locking effect is not very satisfactory.
  • this application is proposed in order to provide a hair dryer and detachable parts that solve the above-mentioned problems.
  • a hair dryer including:
  • a main body the main body includes a housing, and the housing has a first air inlet and a first air outlet;
  • the first connecting piece is arranged at the first air outlet, and the first connecting piece is used for magnetic connection with the detachable piece.
  • a detachable part including:
  • a detachable body having a second air inlet and a second air outlet
  • the second connecting piece is provided at the second air inlet, and the second connecting piece is used for magnetic connection with the main body so as to penetrate the second air inlet and the first outlet of the main body. tuyere.
  • a hair dryer including:
  • a main body the main body includes a shell, the shell has a first air inlet and a first air outlet, and a first connecting member is provided at the first air outlet;
  • a detachable body the detachable body has a second air inlet and a second air outlet, and a second connecting piece is provided at the second air inlet;
  • the second connecting member is magnetically connected to the first connecting member to connect the detachable body to the main body and penetrates the second air inlet and the first air outlet.
  • the main body can be magnetically connected to the detachable part through the first connecting part, and the detachable part includes but is not limited to a tuyere.
  • the detachable part includes but is not limited to a tuyere.
  • the first connecting piece and the detachable piece are magnetically connected, so that the first connecting piece is not easy to wear. After the positions of the first connecting piece and the detachable piece are aligned, they can be automatically connected, making the disassembly and assembly process of the detachable piece very convenient. Fast, accurate installation process, good installation effect, convenient for users to replace detachable parts with different functions.
  • a hair dryer including:
  • a main body the main body has a first air inlet and a first air outlet, the main body is provided with a main control board and a heating assembly and a fan assembly electrically connected to the main control board;
  • the distance sensor is arranged at the end of the first air outlet and is electrically connected to the main control board, so that the main control board receives the distance signal detected by the distance sensor and controls the heating assembly And the working state of the fan assembly.
  • the distance sensor is connected to the main control board through a distance identification circuit.
  • Each of the distance sensors is independently electrically connected to the main control board;
  • the distance sensor includes a transmitting area and a receiving area
  • connection line between the transmitting area on each of the distance sensors and the transmitting area and the receiving area on the other distance sensor does not pass through the center point of the first air outlet
  • the connecting line between the receiving area on each of the distance sensors and the receiving area on the other distance sensor does not pass through the center point of the first air outlet.
  • a correction circuit is provided on the main control board, and the correction circuit is electrically connected to the distance sensor.
  • a heat insulation layer is provided on the outer circumference of the distance sensor.
  • a mounting groove is provided on the end of the first air outlet
  • the distance sensor is installed in the installation slot
  • the heat insulation layer is arranged between the installation groove and the distance sensor.
  • a handle is also provided on the main body;
  • a control unit is provided on the handle, and the control unit is electrically connected with the main control board.
  • a temperature sensor is provided in the main body, and the temperature sensor is electrically connected to the main control board, so that the main control board receives the temperature signal detected by the temperature sensor, and controls the heating assembly and the main control board. The working status of the fan assembly.
  • the distance sensor is one or more of an infrared distance measuring sensor, a radar distance measuring sensor, or a laser distance measuring sensor.
  • the distance sensor can detect the distance between the first air outlet of the main body and the measured human body, and the main control board can control the working status of the heating assembly and the fan assembly according to the distance signal of the distance sensor, which effectively improves
  • the intelligentization of the hair dryer can effectively realize the protection of the human body, which is simple and convenient.
  • a hair dryer in an embodiment of the present application, includes:
  • the main body has air flow channels
  • An air inlet grid is located at the end of the main body, and air enters the air flow channel through the air inlet grid;
  • the exposed parts are located on the air inlet side of the air inlet grid
  • the airflow enters the gap from the edge of the exposed part, and then enters the airflow channel through the air inlet grid.
  • the exposed part shields at least a part of the air inlet grid.
  • the air inlet grid has an end surface facing the exposed part; the edge of the end surface exceeds the projected contour edge of the exposed part on the end surface.
  • the edge of the projected contour of the exposed part on the end surface maintains a fixed distance from the edge of the end surface.
  • the fixed distance is 2-8 mm.
  • the exposed part is connected to the air inlet grid; the air inlet grid is detachably connected to the main body; the exposed part serves as a grip, under the action of the detaching force, Drive the air inlet grid to be removed from the main body.
  • the exposed part is connected to the central part of the air inlet grid; a plurality of ventilation holes are evenly distributed around the central part.
  • the ventilation hole is an arc-shaped hole extending from the central part along an arc to the edge of the air inlet grid.
  • the cross section of the exposed part is continuously reduced to form a guide surface, so that the airflow flows into the air inlet grid along the guide surface.
  • the exposed component includes:
  • the draft plate is located between the exposed panel and the air inlet grid
  • the guide surface is provided on the guide plate to guide the air flow to enter from the outer edge of the guide plate and follow an arc path to the air inlet grid.
  • a first structure for positioning is provided on the end surface of the air inlet grid facing the exposed part; the exposed part maintains a position with the air inlet grid through the first structure Relationship; After the positional relationship between the air inlet grid and the exposed part is fixed, it is connected by a connector.
  • the air inlet grid is provided with a connecting through hole; on the end face of the air inlet grid facing the exposed part, the two ends of the hole diameter of the connecting through hole are respectively provided with positioning Column; the exposed part is provided with a positioning hole adapted to the positioning column, and a connection blind hole corresponding to the position of the connection through hole; the connection piece penetrates the connection through hole and enters the connection blind hole , To connect the air inlet grid and the exposed parts.
  • the end surface of the air inlet grid facing the exposed part is a curved surface.
  • the end surface of the exposed part facing away from the air inlet grid is a curved surface.
  • the distance between the edge of the exposed part and the air inlet grid is 3-9 mm.
  • the technical solution provided by the embodiment of the present application is to provide an exposed part on the air inlet side of the air inlet grid, and there is a gap between the exposed part and the air inlet grid for air to circulate; the airflow does not directly pass through the air inlet grid It enters the airflow channel, but first enters the gap between the exposed part and the air inlet grid, and then passes through the air inlet grid to the airflow channel, which helps reduce noise; in addition, the technical solution provided by the embodiment of the present application also avoids In order to solve the problem that the air inlet grid is completely exposed to the outside, the hair dryer has a more beautiful appearance.
  • a hair dryer including:
  • the main body has a first air inlet at its end;
  • the indicating component surrounds the end of the main body and is electrically connected to the main body, wherein the indicating component displays different indication marks in response to the air outlet temperature of the hair dryer.
  • the indicator assembly has a ring structure, and the airflow entering through the first air inlet can pass through the ring structure.
  • the outer surface of the indicator component is flush with the outer surface of the main body.
  • the outer surface of the indicator assembly includes at least two light-emitting surfaces, wherein at least one of the light-emitting surfaces extends along the normal direction of the first air inlet, and at least one of the light-emitting surfaces surrounds the main body. Extends in the circumferential direction.
  • the indicating assembly includes a light board and a light guide body, and both the light board and the light guide body are ring-shaped structures;
  • annular accommodating cavity is provided in the main body
  • the light board is located in the containing cavity and is electrically connected to the main body;
  • One end of the light guide body extends into the accommodating cavity to abut the light board, and the other end extends from the accommodating cavity to the indication area of the main body.
  • the outer circumference of one end of the light guide body located on the outer surface of the main body is covered with a decorative cover.
  • a side of the light board facing the light guide body has a plurality of lamp beads, and the plurality of lamp beads are annularly distributed on the light board;
  • the light guide body includes an abutting portion and a light guide portion arranged on the abutting portion; the abutting portion abuts the light plate, and a plurality of grooves are provided on the abutting portion, each At least one lamp bead is accommodated in each groove; the light guide part extends out of the accommodating cavity to the indication area of the main body.
  • the groove has a hemispherical structure.
  • a plurality of first clamping portions are provided on the abutting portion and/or the light guide portion, and a plurality of second clamping portions are provided in the accommodating cavity corresponding to the position of the first clamping portion Connection
  • the first clamping portion is connected with the second clamping portion, so that the light guide is connected in the containing cavity.
  • part of the surfaces on the abutment portion and the light guide portion are covered with a light-shielding layer.
  • the indicator component electrically connected to the main body can display different indicator marks in response to the difference in the air outlet temperature of the main body, so that the user can learn the air outlet temperature of the hair dryer according to the different indicator marks.
  • the user can judge the wind temperature according to the different indication signs without touching the air outlet of the hair dryer.
  • the method is simple and intuitive to avoid potential hazards to the user when the hair dryer blows hot air.
  • An embodiment of the present application provides a hair dryer, including:
  • the main body the main body has an air inlet and an air outlet;
  • a handle connected to the main body
  • the handle is provided with a first switch and a second switch; the operating surface of the first switch is perpendicular to the line connecting the air inlet and the air outlet and faces the air inlet, and the second switch The operation surface is parallel to the line connecting the air inlet and the air outlet.
  • extension direction of the handle is perpendicular to the connecting direction of the air inlet and the air outlet.
  • the air outlet is located on the left side of the second switch, and the air inlet is located on the right side of the second switch.
  • the distance from the first switch to the main body is 24mm-30mm.
  • the distance from the first switch to the main body is 27 mm.
  • the second switch includes two switches, and the distance from the first switch to the two second switches is equal.
  • the distance between the two second switches is 13mm-19mm.
  • the distance between the two second switches is 16mm.
  • the first switch is a master control switch
  • the second switch is a mode selection switch
  • the main body is provided with a controller component and a heating component and a fan component electrically connected to the controller component.
  • the second switch includes a cold air mode selection switch
  • the cold air mode selection switch is electrically connected to the controller assembly, and is used for controlling the heating assembly not to generate heat when the cold air mode selection switch is closed.
  • the mode adjustment switch further includes a high-power mode selection switch
  • the high-power mode selection switch is electrically connected to the controller assembly, and is configured to control the fan assembly to switch to the maximum power operation when the high-power mode selection switch is closed, and the controller The component controls the heating component to generate heat with maximum power.
  • the master control switch is a push button; and/or, the mode adjustment switch is a push switch.
  • the hair dryer includes a main body and a handle.
  • the main body has an air inlet and an air outlet.
  • the handle of the air inlet hair dryer is provided with a first switch and a second switch.
  • the operation surface of the first switch is perpendicular to the air inlet.
  • connection line with the air outlet and toward the air inlet, the operation surface of the second switch is parallel to the connection line between the air inlet and the air outlet, so that the operation surface of the first switch is perpendicular to the operation surface of the second switch, so that the user can hold it easily
  • the thumb can just touch the first switch
  • the first switch can be operated by the thumb
  • the free end of the four fingers can just touch the second switch
  • the second switch can be selected by four fingers, which is convenient for operation and conforms to the user.
  • An embodiment of the present application provides a hair dryer, including:
  • the motor is located in the main air flow channel
  • the motor heating element generates heat when the motor is working, and the motor heating element is arranged in the housing and located outside the main air flow channel;
  • the hair dryer further includes a second airflow channel, which is provided in the housing and has an arc-shaped guide surface, so that the second airflow channel can guide the airflow through the motor in an arc-shaped path to generate heat Components and motors.
  • the main airflow channel includes an air inlet channel and an air outlet channel;
  • the air inlet channel includes an air inlet, the air inlet is located on one side of the motor, the air outlet channel includes an air outlet, and the outlet The tuyere is located on the other side of the motor.
  • the second air flow channel is located in an interval between the air inlet and the motor.
  • the motor heating element is located on the radially outer side of the motor, and the second air flow channel is correspondingly located on the radially outer side of the air inlet channel.
  • the air inlet channel includes a number of assembly parts
  • the second air flow channel is formed in a gap in the assembly part
  • the assembly part includes at least one of the following: an air inlet filter assembly, a motor rear housing, and a light source assembly .
  • the air inlet filter assembly includes an air inlet filter screen and a filter screen bracket;
  • the air inlet filter screen radially covers the air inlet of the air inlet channel
  • the filter frame is used to fix the air inlet filter on the housing.
  • the second air flow channel includes a plurality of through holes arranged in an arc shape on the filter support.
  • the second air flow channel further includes a groove provided on the filter support, each of the through holes is located in the groove, and the groove faces the motor heating element.
  • the motor rear housing is located between the motor heating element and the air inlet filter assembly
  • a gap is left between the motor rear housing and the housing in the radial direction, so that the air flow passing through the second air flow channel passes through the motor heating element along a bent path.
  • the air flow passing through the second air flow channel is in contact with the motor heating element in a direction parallel to the front surface of the motor heating element.
  • the motor rear housing has at least a partial projection on the motor heating element.
  • a main air flow channel and a second air flow channel are arranged in the housing, a motor is arranged in the main air flow channel, and a motor heating element is arranged outside the main air flow channel, and the second air flow channel guides the air flow in sequence
  • the motor heating element and the motor take away the heat of the motor heating element and the motor, and realize the heat dissipation of the motor heating element and the motor. Since the second air flow channel is independent of the main air flow channel, the motor is heated through the independent second air flow channel
  • the components and the motor dissipate heat, do not occupy the volume of the main air flow channel, and do not affect the air flow in and out. While effectively dissipating the motor heating components and the motor, there is no need to increase the volume of the blower.
  • FIG. 1 is a schematic diagram of a cross-sectional exploded structure of a hair dryer provided by an embodiment of the application;
  • FIG. 2 is a schematic cross-sectional structure diagram of a hair dryer provided by an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a main body provided by an embodiment of the application.
  • FIG. 4 is a schematic structural diagram of a first positioning member provided by an embodiment of the application.
  • FIG. 5 is a schematic structural diagram of a second positioning member provided by an embodiment of the application.
  • FIG. 6 is a schematic structural diagram of a first connecting piece provided by an embodiment of the application.
  • FIG. 7 is a schematic cross-sectional structure diagram of a tuyere provided by an embodiment of the application.
  • FIG. 8 is a schematic cross-sectional structure diagram of a hair dryer provided by an embodiment of the application.
  • FIG. 9 is a schematic circuit diagram of a hair dryer provided by an embodiment of the application.
  • FIG. 10 is a schematic bottom view of the structure of a hair dryer provided by an embodiment of the application.
  • Figure 11 is a schematic front view of the structure of a hair dryer provided by an embodiment of the application.
  • FIG. 12 is a schematic front view of the structure of the hair dryer in another state according to an embodiment of the application.
  • Figure 13 is a schematic diagram of the internal structure of a hair dryer in the prior art
  • Figure 14a is a schematic cross-sectional view of a hair dryer body provided by an embodiment of the application.
  • Fig. 14b is a three-dimensional schematic diagram of a hair dryer body provided by an embodiment of the application.
  • FIG. 15 is a schematic structural diagram of a heating component in a hair dryer provided by an embodiment of the application.
  • FIG. 16 is a schematic diagram of a drainage structure provided on a fan assembly in a hair dryer provided by an embodiment of the application;
  • Figure 17 is a schematic cross-sectional view of a hair dryer provided by an embodiment of the application.
  • FIG. 18 is an exploded schematic diagram of the assembly of the silencer component in the hair dryer provided by an embodiment of the application.
  • Figure 19 is a side view of a hair dryer provided by an embodiment of the application.
  • Figure 20 is a rear view of a hair dryer provided by an embodiment of the application.
  • Figure 21 is an isometric view of a hair dryer provided by an embodiment of the application.
  • 22 is an exploded schematic diagram of the assembly of the exposed parts and the air inlet grid of the hair dryer provided by an embodiment of the application;
  • FIG. 23 is a schematic diagram of the internal structure of a hair dryer provided by an embodiment of the application.
  • Fig. 24 is a partial enlarged schematic diagram of Fig. 23;
  • FIG. 25 is a schematic structural diagram of a hair dryer provided by an embodiment of the application.
  • FIG. 26 is a schematic cross-sectional structure diagram of a main body provided by an embodiment of the application.
  • Fig. 27 is an enlarged schematic diagram of A in Fig. 26;
  • FIG. 28 is a schematic diagram of an exploded structure of a hair dryer provided by an embodiment of the application.
  • FIG. 29 is a schematic structural diagram of the front surface of a light guide provided by an embodiment of the application.
  • FIG. 30 is a schematic diagram of the backside structure of the light guide provided by an embodiment of the application.
  • FIG. 31 is a schematic diagram of the internal structure of the handle of the hair dryer provided by an embodiment of the application.
  • Fig. 32 is a control principle diagram of a hair dryer provided by an embodiment of the application.
  • FIG. 33 is a schematic diagram of an exploded structure of a hair dryer provided by an embodiment of the application.
  • FIG. 34 is a schematic plan view of a front cover provided by an embodiment of the application.
  • 35 is a schematic diagram of a three-dimensional structure of a front cover provided by an embodiment of the application.
  • FIG. 36 is a schematic diagram of the structure after the front cover plate and the air inlet grid are aligned according to an embodiment of the application
  • FIG. 37 is a schematic diagram of an exploded structure of an exposed component provided by an embodiment of the application.
  • FIG. 38 is a schematic diagram of the structure of an air inlet grid provided by another embodiment of the application.
  • Figure 39 is a cross-sectional view of a hair dryer provided by an embodiment of the application.
  • FIG. 40 is a cross-sectional view of the main body of the hair dryer provided by an embodiment of the application.
  • Figure 41 is a partial exploded schematic diagram of a hair dryer provided by an embodiment of the application.
  • Figure 42 is a cross-sectional view of the main body of a hair dryer provided by another embodiment of the application.
  • FIG. 43 is a schematic diagram of a filter support in a hair dryer provided by an embodiment of the application.
  • FIG. 44 is a schematic diagram of the air inlet filter in the hair dryer provided by an embodiment of the application.
  • the nozzle of the hair dryer is generally directly fixed on the body of the hair dryer, or the two are connected by a buckle.
  • a fixed connection the nozzles with different functions cannot be replaced.
  • buckle connection it is very cumbersome to use, and it is necessary to align the position of the locking part of the buckle to achieve locking.
  • the locking parts of the buckle are prone to wear and tear, resulting in improper assembly, etc., making the fixed fruit worse and worse, and the locking effect is not very satisfactory.
  • the present application provides the following embodiments, a hair dryer and a detachable part, so that the disassembly and assembly process of the detachable part is very convenient and fast, and the installation process is accurate.
  • FIG. 1 is a schematic cross-sectional exploded structure diagram of a hair dryer provided by an embodiment of this application
  • FIG. 2 is a schematic cross-sectional structure diagram of a hair dryer provided by an embodiment of this application, as shown in FIGS. 1 and 2.
  • a hair dryer which includes a main body 10 and a first connecting member 13.
  • the main body 10 includes a housing, and the housing has a first air inlet 11 and a first air outlet 12.
  • the first connecting member 13 is disposed at the first air outlet 12, and the first connecting member 13 is used for magnetic connection with a detachable member.
  • the main body 10 is magnetically connected to the detachable member through the first connecting member 13.
  • the detachable member is disassembled on the main body 10
  • the first connecting piece 13 and the detachable piece are magnetically connected, so that the first connecting piece 13 is not easy to wear.
  • the first connecting piece 13 and the detachable piece can be automatically connected after alignment, making the disassembly and assembly process of the detachable piece very easy. Convenient and fast, the installation process is accurate, the installation effect is good, and it is convenient for users to replace detachable parts with different functions.
  • the detachable part includes, but is not limited to, a tuyere.
  • the detachable part can be magnetically connected to the first connecting part 13, or the detachable part includes a detachable body 20 and a second connecting part 21 provided on the detachable body 20.
  • the second connecting member 21 is magnetically connected to the first connecting member 13.
  • the blower may be a hand-held blower as shown in FIG. 1 and FIG. 2, and may also include, but is not limited to, a self-moving cleaning robot with a blowing function, a vehicle-mounted vacuum cleaner, an air purifier, and the like.
  • the main body 10 may be the main body of the hand-held hair dryer as shown in FIGS.
  • the hair dryer described in the above and the following embodiments is illustrated by taking a hand-held hair dryer as an example, which does not constitute an improper limitation of the embodiments of the present application.
  • an achievable manner of the main body 10 in the embodiment of the present application is that the main body 10 includes a housing, and a hair dryer is arranged in the cavity of the housing.
  • Various functional components of the housing are provided with a first air inlet 11 and a first air outlet 12.
  • the housing extends substantially in the longitudinal direction, the first air inlet 11 is located at the front end of the housing, and the first air outlet 12 is located at the rear end of the housing.
  • the first air inlet 11 and the first air outlet 12 are located on the same horizontal plane, and this design can reduce the loss on the air flow path.
  • the components arranged inside the housing include, but are not limited to, a controller assembly, a heating assembly 50 connected to the controller assembly, a fan assembly 60, and the like. Compared with the first air inlet 11 and the first air outlet 12, the fan assembly 60 is closer to the first air inlet 11, and the heating assembly 50 is closer to the first air outlet 12.
  • the fan assembly 60 includes a motor that drives a fan and a fan that rotates to generate a negative pressure.
  • the fan assembly is configured to generate negative pressure during operation to draw air from the first air inlet 11 into the main body 10, and after being heated by the heating assembly 50, The first air outlet 12 blows out.
  • the main body 10 also includes a handle 40 through which the user can hold the hair dryer to blow the air.
  • the handle 40 is provided with control buttons connected to the controller assembly.
  • the control buttons can be used to control the hair dryer to perform different functions, for example, to control the hair dryer to blow out. Winds of different sizes.
  • the handle 40 is also provided with a battery assembly, the battery assembly is connected to the controller assembly, the battery assembly is configured to provide power to other components, or the power cord of the hair dryer is connected to the controller assembly through the handle 40, and the power cord is connected to an external power source for other components Provide electricity.
  • an achievable way is that the extension direction of the handle 40 is perpendicular to the extension direction of the housing. And one end of the handle 40 is connected to the middle position between the front and rear ends of the housing, so that the entire main body 10 has a T-shaped structure.
  • the arrow in Figure 1 represents a achievable flow path of the airflow of the hair dryer.
  • the airflow is sucked in by the first air inlet 11, passes through the fan assembly 60, the heating assembly 50 and other components, and passes through the main body.
  • the first air outlet 12 of 10 is discharged through the detachable part.
  • the first connecting member 13 includes, but is not limited to, a magnet, an iron sheet, or other components made of a magnetically permeable material.
  • the detachable member may be made of iron material, or the second connecting member 21 on the detachable body 20 includes but is not limited to a magnet, an iron sheet, or other materials made of a magnetically permeable material. Parts.
  • the second connecting member 21 is a magnet.
  • the shape of the first connecting member 13 may be set to a ring structure. After the detachable member is connected to the first connecting member 13, the detachable member can be detached. The member can be rotated at will along the plane where the first connecting member 13 is located, so as to adjust the air outlet angle of the detachable member.
  • the first air outlet 12 has an annular structure, and the first connecting member 13 is disposed on the radial inner side of the annular structure.
  • the first air outlet of the ring structure can make the blowing range of the wind to be larger, thereby improving the blowing effect of the wind.
  • the first connecting member 13 is arranged on the radially inner side of the ring structure, so that the first connecting member 13 magnetically connects the detachable member, and at the same time does not affect the air out of the first air outlet 12.
  • the hair dryer further includes a positioning structure 30.
  • the positioning structure 30 is located at the radial inner side of the first air outlet 12, and the positioning structure 30 is connected to the housing through a plurality of connecting ribs 31. There is a gap between the positioning structure 30 and the housing, and the gap forms the first air outlet 12 of the ring structure.
  • the first connecting member 13 is connected to and fixed to the positioning structure 30.
  • the positioning structure 30, the connecting ribs 31 and the housing are formed as an integral structure, the positioning structure 30 has a recessed portion recessed into the housing, and the first connecting member 13 is provided in the housing. Mentioned in the depression.
  • the recess is located at the radial inner side of the first air outlet 12 of the ring structure, and the first air outlet 12 surrounds the periphery of the positioning structure 30.
  • the first connecting member 13 is located in the recessed portion, and the bottom of the recessed portion is used to connect the first connecting member 13.
  • the detachable part can be inserted into the recess and is magnetically connected to the first connecting part 13 through the second connecting part 21.
  • a mating structure connected to the first connecting member 13 is provided in the recessed portion.
  • the first connecting member 13 is located in the recessed portion and fixed on the mating structure.
  • the mating structure may be a bearing platform, and the first connecting member 13 is fixedly connected to the bearing platform.
  • the mating structure is a first stepped structure 3221.
  • the first step structure 3221 is used in conjunction with the second step structure 131. The first step structure 3221 is clamped to the second step structure 131.
  • the position of the second connecting member 21 can be defined by the first stepped structure 3221 and the second stepped structure 131, which effectively prevents the first connecting member 13 from being installed in a wrong position. At the same time, during installation, there is no need to deliberately align the installation positions of the first connecting member 13 and the bearing platform, which facilitates the installation of the first connecting member 13.
  • an achievable way of the positioning structure 30 is that the positioning structure 30 includes a first positioning member 32 and a second positioning member 33.
  • the first positioning member 32 has the recessed portion recessed toward the inside of the housing.
  • the first positioning member 32 with a recessed portion has a bowl-shaped structure and is located inside the first air outlet 12 of the ring structure, that is, the radius of the first positioning member 32 is smaller than the radius of the first air outlet 12.
  • the first positioning member 32 is connected to the housing of the main body 10 through a plurality of the connecting ribs 31.
  • the second positioning member 33 is housed in the recessed portion, that is, the second positioning member 33 is housed in the interior of the bowl-shaped structure, and is connected to the first positioning member 32, and will be located in the first positioning member.
  • the first connecting member 13 between 32 and the second positioning member 33 is clamped and fixed.
  • the first connecting member 13 and the first positioning member 32 may be connected in advance by bonding, clamping, etc., and then clamped and fixed by the second positioning member 33.
  • the bottom of the recessed portion has a positioning portion 323.
  • the second positioning member 33 includes a fixing plate 331 and a connecting column 332 provided on the fixing plate 331, the connecting column 332 is connected to the positioning portion 323, and the fixing plate 331 is connected to the first positioning member 32 forms a clamping structure for clamping and fixing the first connecting member 13.
  • the recessed portion is a mounting groove 321, the mounting groove 321 is recessed toward the inside of the housing, the wall of the mounting groove 321 is provided with a bearing surface 322, and the bearing surface 322 may be composed of a plurality of protrusions on the groove wall.
  • the bearing surface 322 is a boss on the ring and groove wall.
  • the positioning portion 323 may be one or more. When the positioning portion 323 is one, the positioning portion 323 is disposed at the center position of the bottom of the installation groove 321. When there are multiple positioning parts 323, the positioning parts 323 are arranged at the bottom of the installation groove 321 and are evenly arranged around the center of the bottom of the installation groove 321.
  • the positioning portion 323 is provided with a screw hole, and the connecting post 332 can be connected to the positioning portion 323 by screws.
  • a first step structure 3221 is provided on the bearing surface 322.
  • the first connecting member 13 is provided with a second step structure 131 that cooperates with the first step structure 3221.
  • the first step structure 3221 is clamped to the second step structure 131.
  • the position of the second connecting member 21 can be defined by the first stepped structure 3221 and the second stepped structure 131, which effectively prevents the first connecting member 13 from being installed in a wrong position. At the same time, during installation, there is no need to deliberately align the installation positions of the first connecting member 13 and the bearing platform, which facilitates the installation of the first connecting member 13.
  • the fixing plate 331 is provided with a third step structure 3311 that cooperates with the second step structure 131.
  • the third step structure 3311 is clamped to the second step structure 131 so that the surface of the fixing plate 331 is flush with the surface of the first connecting member 13.
  • the connection position of the second positioning member 33 can be defined by the second step and the third step, effectively preventing the second positioning member 33 from being installed misaligned, and at the same time facilitating the installation of the second positioning member 33.
  • a positioning groove 3231 is provided on the positioning portion 323, and a limiting notch 3232 is provided on the groove wall of the positioning groove 3231 .
  • the connecting post 332 is provided with a limiting strip 3321 used in conjunction with the limiting notch 3232.
  • the connecting post 332 extends into the positioning groove 3231 to be connected to the positioning portion 323.
  • the limiting bar 3321 extends into the limiting notch 3232 to prevent the second positioning member 33 from rotating in the radial direction.
  • the limiting notch 3232 extends along the axial direction of the mounting slot 321, the limiting notch 3232 may be one or more, and the number of the limiting bars 3321 may be the same as or less than the number of the limiting notches 3232.
  • the connecting post 332 drives the limit bar 3321 into the limit gap 3232.
  • the connecting post 332 cannot rotate, so that the second The positioning member 33 will not rotate either.
  • Embodiment 1 On the basis of Embodiment 1, the embodiment of the present application also provides a detachable part.
  • the detachable part in Embodiment 2 can be used in conjunction with the main body 10 in Embodiment 1.
  • a detachable member including a detachable body 20 and a second connecting member 21.
  • the detachable body 20 has a second air inlet and a second air outlet.
  • the second connecting member 21 is provided at the second air inlet, and the second connecting member 21 is used for magnetic connection with the main body 10 so as to penetrate the second air inlet and the first air outlet 12 of the main body. .
  • the detachable part includes but is not limited to a tuyere.
  • the detachable body 20 is magnetically connected to the main body 10 through the second connecting member 21.
  • the second connecting piece 21 and the main body 10 are magnetically connected, so that the second connecting piece 21 is not easy to wear.
  • the second connecting piece 21 and the main body 10 can be automatically connected after the position is aligned, making the disassembly and assembly process of the detachable piece very convenient. Fast, accurate installation process, good installation effect, convenient for users to replace detachable parts with different functions.
  • the second air inlet has an annular structure.
  • the second air inlet and the first air outlet 12 are both ring-shaped structures, which can achieve good docking and reduce the loss of air flow.
  • one achievable way of the detachable member is that a connecting protrusion 22 is provided on the radial inner side of the ring structure, and the second connecting member 21 is provided on the connecting protrusion 22.
  • the connecting protrusion 22 can extend into the recess of the positioning structure 30 so that the second connecting member 21 is connected to the first connecting member 13.
  • the arrow in FIG. 7 shows an achievable air flow path.
  • the detachable piece has a fluid channel communicating with the first air outlet 12, and the fluid channel is distributed around the connecting protrusion 22, and the connecting protrusion 22 extends When entering the recess, the fluid channel communicates with the first air outlet 12 through the second air inlet, and the air flow blown from the first air outlet 12 enters the fluid channel through the second air inlet, and then blows out through the second air outlet.
  • the first connecting member 13 has an annular structure
  • the second connecting member 21 is a ring structure matched with the first connecting member 13.
  • the first connecting member 13 may not be an annular structure, but may be more than one, and is evenly arranged along the center of the bottom of the recessed portion.
  • the connecting protrusion 22 is provided with a fixing groove 22a, for example, the connecting protrusion 22 is provided with a fixing groove 22a on the side facing the main body 10.
  • the two connecting members 21 are fixedly connected in the fixing groove 22a.
  • the installation position of the second connecting member 21 can be fixed by the fixing groove 22a, and the second connecting member 21 is prevented from moving.
  • the second connecting member 21 is further bonded or clamped in the fixing groove 22a.
  • detachable part in embodiment 2 can be used with the hair dryer in embodiment 1.
  • the technical features in embodiment 2 and the technical features in embodiment 1 can be referred to each other. I will not repeat them here.
  • Embodiment 1 and Embodiment 2 On the basis of Embodiment 1 and Embodiment 2, the embodiment of the present application also provides a hair dryer.
  • the main body 10 in Embodiment 3 can be realized by the main body described in Embodiment 1, and the detachable part can be realized by the main body described in Embodiment 2.
  • the detachable parts are realized, and the technical features in Embodiment 3 and the technical features in Embodiment 1 and Embodiment 2 can be referred to each other under the condition that the structure does not conflict.
  • a hair dryer which includes a main body 10 and a detachable body 20.
  • the main body 10 includes a housing having a first air inlet 11 and a first air outlet 12, and a first connecting member 13 is provided at the first air outlet 12.
  • the detachable body 20 has a second air inlet and a second air outlet, and a second connecting member 21 is provided at the second air inlet.
  • the second connecting member 21 is magnetically connected to the first connecting member 13 to connect the detachable body 20 to the main body 10 and penetrates the second air inlet and the first air outlet 12 .
  • the main body 10 is magnetically connected to the second connecting member 21 on the detachable body 20 through the first connecting member 13.
  • the magnetic force between the member 13 and the second connecting member 21 is sufficient, and no other operations are required.
  • the first connecting piece 13 and the second connecting piece 21 are magnetically connected, so that the first connecting piece 13 and the second connecting piece 21 are not easy to wear, and the first connecting piece 13 and the second connecting piece 21 can be automatically connected after the positions are aligned.
  • an achievable manner of the main body 10 in the embodiment of the present application is that the main body 10 includes a housing, and a hair dryer is arranged in the cavity of the housing.
  • Various functional components of the housing are provided with a first air inlet 11 and a first air outlet 12.
  • the housing extends substantially in the longitudinal direction, the first air inlet 11 is located at the front end of the housing, and the first air outlet 12 is located at the rear end of the housing.
  • the first air inlet 11 and the first air outlet 12 are located on the same horizontal plane, and this design can reduce the loss on the air flow path.
  • the components arranged inside the housing include, but are not limited to, a controller assembly, a heating assembly 50 connected to the controller assembly, a fan assembly 60, and the like. Compared with the first air inlet 11 and the first air outlet 12, the fan assembly 60 is closer to the first air inlet 11, and the heating assembly 50 is closer to the first air outlet 12.
  • the fan assembly 60 includes a motor that drives a fan and a fan that rotates to generate a negative pressure. The fan assembly is configured to generate negative pressure during operation to draw air from the first air inlet 11 into the main body 10, and after being heated by the heating assembly 50, The first air outlet 12 blows out.
  • the main body 10 also includes a handle 40 through which the user can hold the hair dryer to blow the air.
  • the handle 40 is provided with control buttons connected to the controller assembly. The control buttons can be used to control the hair dryer to perform different functions, for example, to control the hair dryer to blow out. Winds of different sizes.
  • the handle 40 is also provided with a battery assembly, the battery assembly is connected to the controller assembly, the battery assembly is configured to provide power to other components, or the power cord of the hair dryer is connected to the controller assembly through the handle 40, and the power cord is connected to an external power source for other components Provide electricity.
  • an achievable way is that the extension direction of the handle 40 is perpendicular to the extension direction of the housing. And one end of the handle 40 is connected to the middle position between the front and rear ends of the housing, so that the entire main body 10 has a T-shaped structure.
  • the arrow in Figure 1 represents a achievable flow path of the airflow of the hair dryer.
  • the airflow is sucked in by the first air inlet 11, passes through the fan assembly 60, the heating assembly 50 and other components, and passes through the main body.
  • the first air outlet 12 of 10 is discharged through the detachable part.
  • the first connecting member 13 includes, but is not limited to, a magnet, an iron sheet, or other components made of a magnetically permeable material.
  • the detachable member may be made of iron material, or the second connecting member 21 on the detachable body 20 includes but is not limited to a magnet, an iron sheet, or other materials made of a magnetically permeable material. Parts.
  • the second connecting member 21 is a magnet.
  • the shape of the first connecting member 13 may be set to a ring structure. After the detachable member is connected to the first connecting member 13, the detachable member can be detached. The member can be rotated at will along the plane where the first connecting member 13 is located, so as to adjust the air outlet angle of the detachable member.
  • the first air outlet 12 has an annular structure, and the first connecting member 13 is disposed on the radial inner side of the annular structure.
  • the first air outlet of the ring structure can make the blowing range of the wind to be larger, thereby improving the blowing effect of the wind.
  • the first connecting member 13 is arranged on the radially inner side of the ring structure, so that the first connecting member 13 magnetically connects the detachable member, and at the same time does not affect the air out of the first air outlet 12.
  • the hair dryer further includes a positioning structure 30.
  • the positioning structure 30 is located at the radial inner side of the first air outlet 12, and the positioning structure 30 is connected to the housing through a plurality of connecting ribs 31. There is a gap between the positioning structure 30 and the housing, and the gap forms the first air outlet 12 of the ring structure.
  • the first connecting member 13 is connected to and fixed to the positioning structure 30.
  • the positioning structure 30, the connecting ribs 31 and the housing are formed as an integral structure, the positioning structure 30 has a recessed portion recessed into the housing, and the first connecting member 13 is provided in the housing. Mentioned in the depression.
  • the recess is located at the radial inner side of the first air outlet 12 of the ring structure, and the first air outlet 12 surrounds the periphery of the positioning structure 30.
  • the first connecting member 13 is located in the recessed portion, and the bottom of the recessed portion is used to connect the first connecting member 13.
  • the detachable part can be inserted into the recess and is magnetically connected to the first connecting part 13 through the second connecting part 21.
  • a mating structure connected to the first connecting member 13 is provided in the recessed portion.
  • the first connecting member 13 is located in the recessed portion and fixed on the mating structure.
  • the mating structure may be a bearing platform, and the first connecting member 13 is fixedly connected to the bearing platform.
  • the mating structure is a first stepped structure 3221.
  • the first step structure 3221 is used in conjunction with the second step structure 131. The first step structure 3221 is clamped to the second step structure 131.
  • the position of the second connecting member 21 can be defined by the first stepped structure 3221 and the second stepped structure 131, which effectively prevents the first connecting member 13 from being installed in a wrong position. At the same time, during installation, there is no need to deliberately align the installation positions of the first connecting member 13 and the bearing platform, which facilitates the installation of the first connecting member 13.
  • an achievable way of the positioning structure 30 is that the positioning structure 30 includes a first positioning member 32 and a second positioning member 33.
  • the first positioning member 32 has the recessed portion recessed toward the inside of the housing.
  • the first positioning member 32 with a recessed portion has a bowl-shaped structure and is located inside the first air outlet 12 of the ring structure, that is, the radius of the first positioning member 32 is smaller than the radius of the first air outlet 12.
  • the first positioning member 32 is connected to the shell of the main body 10 through a plurality of the connecting ribs 31.
  • the second positioning member 33 is housed in the recessed portion, that is, the second positioning member 33 is housed in the interior of the bowl-shaped structure, and is connected to the first positioning member 32, and will be located in the first positioning member.
  • the first connecting member 13 between 32 and the second positioning member 33 is clamped and fixed.
  • the first connecting member 13 and the first positioning member 32 may be connected in advance by bonding, clamping, etc., and then clamped and fixed by the second positioning member 33.
  • the bottom of the recessed portion has a positioning portion 323.
  • the second positioning member 33 includes a fixing plate 331 and a connecting column 332 provided on the fixing plate 331, the connecting column 332 is connected to the positioning portion 323, and the fixing plate 331 is connected to the first positioning member 32 forms a clamping structure for clamping and fixing the first connecting member 13.
  • the recessed portion is a mounting groove 321, the mounting groove 321 is recessed toward the inside of the housing, the wall of the mounting groove 321 is provided with a bearing surface 322, and the bearing surface 322 may be composed of a plurality of protrusions on the groove wall.
  • the bearing surface 322 is a boss on the ring and groove wall.
  • the positioning portion 323 may be one or more. When the positioning portion 323 is one, the positioning portion 323 is disposed at the center position of the bottom of the installation groove 321. When there are multiple positioning parts 323, the positioning parts 323 are arranged at the bottom of the installation groove 321 and are evenly arranged around the center of the bottom of the installation groove 321.
  • the positioning portion 323 is provided with a screw hole, and the connecting post 332 can be connected to the positioning portion 323 by screws.
  • a first step structure 3221 is provided on the bearing surface 322.
  • the first connecting member 13 is provided with a second step structure 131 that cooperates with the first step structure 3221.
  • the first step structure 3221 is clamped to the second step structure 131.
  • the position of the second connecting member 21 can be defined by the first stepped structure 3221 and the second stepped structure 131, which effectively prevents the first connecting member 13 from being installed in a wrong position. At the same time, during installation, there is no need to deliberately align the installation positions of the first connecting member 13 and the bearing platform, which facilitates the installation of the first connecting member 13.
  • the fixing plate 331 is provided with a third step structure 3311 that cooperates with the second step structure 131.
  • the third stepped structure 3311 is clamped to the second stepped structure 131 so that the surface of the fixing plate 331 is flush with the surface of the first connecting member 13.
  • the connection position of the second positioning member 33 can be defined by the second step and the third step, effectively preventing the second positioning member 33 from being installed misaligned, and at the same time facilitating the installation of the second positioning member 33.
  • a positioning groove 3231 is provided on the positioning portion 323, and a limiting notch 3232 is provided on the groove wall of the positioning groove 3231 .
  • the connecting post 332 is provided with a limiting strip 3321 used in conjunction with the limiting notch 3232.
  • the connecting post 332 extends into the positioning groove 3231 to be connected to the positioning portion 323.
  • the limiting bar 3321 extends into the limiting notch 3232 to prevent the second positioning member 33 from rotating in the radial direction.
  • the limiting notch 3232 extends along the axial direction of the mounting slot 321, the limiting notch 3232 may be one or more, and the number of the limiting bars 3321 may be the same as or less than the number of the limiting notches 3232.
  • the connecting post 332 drives the limit bar 3321 into the limit gap 3232.
  • the connecting post 332 cannot rotate, so that the second The positioning member 33 will not rotate either.
  • the second air inlet has an annular structure.
  • the second air inlet and the first air outlet 12 are both ring-shaped structures, which can achieve good docking and reduce the loss of air flow.
  • An achievable way of the detachable member is that a connecting protrusion 22 is provided on the radial inner side of the ring structure, and the second connecting member 21 is provided on the connecting protrusion 22.
  • the connecting protrusion 22 can extend into the recess of the positioning structure 30 so that the second connecting member 21 is connected to the first connecting member 13.
  • the arrow in FIG. 7 shows an achievable flow path of the air flow.
  • the detachable body 20 has a fluid channel communicating with the first air outlet 12, and the fluid channel is distributed around the connecting protrusion 22.
  • the connecting protrusion 22 When extending into the recess, the fluid channel communicates with the first air outlet 12 through the second air inlet, and the air flow blown from the first air outlet 12 enters the fluid channel through the second air inlet, and then blows out through the second air outlet.
  • the first connecting member 13 has an annular structure
  • the second connecting member 21 is a ring structure matched with the first connecting member 13.
  • the first connecting member 13 may not be an annular structure, but may be more than one, and is evenly arranged along the center of the bottom of the recessed portion.
  • the connecting protrusion 22 is provided with a fixing groove 22a, for example, the connecting protrusion 22 is provided with a fixing groove 22a on the side facing the main body 10.
  • the two connecting members 21 are fixedly connected in the fixing groove 22a.
  • the installation position of the second connecting member 21 can be fixed by the fixing groove 22a, and the second connecting member 21 is prevented from moving.
  • the second connecting member 21 is further bonded or clamped in the fixing groove 22a.
  • Embodiment 3 and the technical features in Embodiment 1 and Embodiment 2 can be referred to each other, and will not be repeated here.
  • the hair dryer is a hand-held hair dryer
  • the detachable part is a nozzle
  • the first connecting part is a magnet
  • the second connecting part is an iron sheet as an example.
  • At least one of the magnet and the iron sheet is ring-shaped, and the air nozzle can rotate freely.
  • the inventor found that when adjusting the wind speed and temperature of the air, the existing hair dryer generally uses a button to manually set the wind speed and temperature gear. . Regardless of whether there is an object in front of the first air outlet of the hair dryer, and regardless of the distance between the object and the hair dryer, if there is no manual operation, it can only operate at a fixed wind temperature and speed gear. When the user feels uncomfortable, they can only remove the hair dryer or manually switch to other gears until a suitable wind temperature and wind speed gear is found. It is very inconvenient to use, and the user experience is not good.
  • this application also provides the following embodiments, which can control the working status of the heating assembly and the fan assembly according to the distance information of the distance sensor, thereby adjusting the wind temperature and speed, effectively improving the intelligence of the hair dryer, and effectively realizing the impact on the human body. Protection is simple and convenient.
  • FIG. 8 is a schematic cross-sectional structure diagram of a hair dryer provided by an embodiment of the application
  • FIG. 9 is a schematic circuit diagram of a hair dryer provided by an embodiment of the application
  • FIG. 10 is a schematic bottom view structure of a hair dryer provided by an embodiment of the application, such as Shown in Figure 8 to Figure 10.
  • a hair dryer including a main body 10 and a distance sensor 200.
  • the main body 10 has a first air inlet 11 and a first air outlet 12.
  • the main body 10 is provided with a main control board 213 and a heating assembly 50 and a fan assembly 60 electrically connected to the main control board 213.
  • the distance sensor 200 is arranged at the end of the first air outlet 12 and is electrically connected to the main control board 213, so that the main control board 213 receives the distance signal detected by the distance sensor 200 and controls the The working state of the heating assembly 50 and the fan assembly 60.
  • controller assembly electrically connected to the fan assembly 60 and the heating assembly 50 may include the main control board 213 mentioned in this embodiment.
  • the distance sensor 200 can detect the distance between the first air outlet 12 of the main body 10 and the measured human body, and the main control board 213 can control the heating assembly 50 and the fan assembly according to the distance signal of the distance sensor 200
  • the working state of 60 effectively improves the intelligence of the hair dryer, and effectively realizes the protection of the human body, which is simple and convenient.
  • an achievable manner of the main body 10 in the embodiment of the present application is that the main body 10 includes a housing, and a hair dryer is arranged in the cavity of the housing.
  • Various functional components of the housing are provided with a first air inlet 11 and a first air outlet 12.
  • the components arranged inside the casing include, but are not limited to, the main control board 213, the heating assembly 50 and the fan assembly 60 connected to the main control board 213, and the like.
  • the fan assembly 60 includes a motor that drives a fan and a fan that rotates to generate negative pressure.
  • the fan assembly 60 is configured to generate negative pressure during operation to draw air from the first air inlet 11 into the main body 10, and after passing through the heating assembly 50, An air outlet 12 blows out.
  • the main body 10 is also provided with a handle 40, through which the user can hold the hair dryer to blow the air.
  • the main control board 213 in order to realize the main control board 213 to control the heating assembly 50 and the fan assembly 60, the main control board 213 is provided with a control circuit for controlling the working state of the heating assembly 50 and the fan assembly 60.
  • the main control board 213 can control the fan assembly 60 in a variety of working states, for example, control the start and stop of the fan assembly 60, realize the amount of wind blown by the fan assembly 60 by controlling different speeds, and control the fan assembly 60 Strong wind, breeze, etc. are blowing.
  • the control of the size of the wind is not limited to strong winds and light winds, and the wind that blows out a variety of winds can be controlled according to different needs.
  • the main control board 213 can also control various working states of the heating assembly 50, for example, control the start and stop of the heating assembly 50, and control the temperature of the heating assembly 50 by controlling the energization current of the heating assembly 50, so as to realize the change of the wind Hot air, light hot air, etc.
  • the distance sensor 200 is configured to detect the distance between the first air outlet 12 and the measured human body and send the above distance signal to the main control board 213.
  • the distance sensor 200 includes, but is not limited to, one or more of an infrared distance measuring sensor, a radar distance measuring sensor, or a laser distance measuring sensor.
  • the detection distance accuracy of the distance sensor 200 is 1mm, and the maximum detection range is 1m.
  • the detection distance accuracy and maximum detection range of the distance sensor 200 can be adjusted according to different detection requirements, and there is no specific limitation here.
  • the triangular area in FIG. 10 represents the detection range of the distance sensor 200, and FIG. 10 is only schematic, and does not constitute an improper limitation of the embodiment of the present application.
  • the main control board 213 can control the working status of the fan assembly 60 and the heating assembly 50 according to the received distance signal. For example, when the distance sensor 200 detects that the distance between the first air outlet 12 and the measured human body is getting closer, the main control board 213 can control the wind speed of the fan assembly 60 to decrease, and the temperature of the heating assembly 50 to decrease, so that the first outlet The wind blown from the tuyere 12 is slightly hot, and the user does not have to worry about burning the hair if the first outlet 12 is too close to the hair when using the hair dryer.
  • the main control board 213 can control the wind speed of the fan assembly 60 to increase, and the temperature of the heating assembly 50 to increase, so that the first The wind blown from the air outlet 12 is strong hot air.
  • the hair dryer automatically adjusts the wind temperature and speed according to the distance detection, which greatly improves the user experience.
  • the main control board 213 can automatically adjust the power of the fan assembly 60 and the heating assembly 50 according to the distance signal of the distance sensor 200, so that the temperature and the air output of the measured body position are constant, thereby ensuring that The object to be used has been kept within a reasonable temperature and air output range. For example, when the position of the measured human body is far away from the first air outlet 12, the power of the heating assembly 50 is increased, and when the position of the measured human body is closer to the first air outlet 12, the power of the heating assembly 50 is reduced to Make the temperature of the measured human body position constant. Similarly, the main control board 213 adjusts the power of the fan assembly 60 according to the distance signal, so that the air volume at the measured position of the human body is constant.
  • the process of detecting the distance between the first air outlet 12 and the measured human body by the distance sensor 200 may be real-time, and the main control board 213 controlling the working status of the fan assembly 60 and the heating assembly 50 is also real-time, for example,
  • the main control board 213 can control the wind speed of the fan assembly 60 to gradually increase or decrease, and the temperature of the heating assembly 50 gradually changes Bigger or smaller.
  • the process of detecting the distance between the first air outlet 12 and the measured human body by the distance sensor 200 may be real-time.
  • the main control board 213 controls the working status of the fan assembly 60 and the heating assembly 50 in stages.
  • the distance sensor 200 detects When the distance between the first air outlet 12 and the measured human body reaches a predetermined value, the main control board 213 can control the fan assembly 60 and the heating assembly 50 to change states.
  • the main control board 213 can control the fan assembly 60 to blow breeze, and the temperature of the heating assembly 50 is 10 degrees.
  • the main control board 213 can control the fan assembly 60 to blow strong wind, and the temperature of the heating assembly 50 is 15 degrees.
  • the predetermined value can be adjusted according to different detection requirements, which is not specifically limited here.
  • the processing methods in the embodiments of this application include but are not limited to the following methods:
  • the first distance threshold and the second distance threshold are pre-stored in the main control board 213.
  • the first distance threshold is used as the minimum safe distance of the hair dryer.
  • the main control board 213 receives the distance signal from the distance sensor 200, the distance signal indicates the distance between the hair dryer and the measured human body.
  • the distance signal is compared with the first distance threshold. For comparison, when the distance between the hair dryer and the measured human body is greater than or equal to the first distance threshold, it indicates that the human body is still within the minimum safe distance, and the hair dryer can continue to work.
  • the main control board 213 can control the fan assembly 60 and the heating assembly 50 to operate in a minimum working state.
  • the fan assembly 60 is adjusted from a strong wind state to a breeze state.
  • the distance between the blower and the measured human body is less than the first distance threshold, it means that the human body is no longer within the minimum safe distance. If the blower continues to work, it will easily cause damage to the human body.
  • the main control board 213 can control the fan assembly 60 And the heating assembly 50 stops running.
  • the main control board 213 can control the fan assembly 60 and the heating assembly 50 to operate again.
  • the first preset distance is 10 cm.
  • the first preset distance can be adjusted according to different detection requirements, which is not specifically limited here.
  • the second distance threshold is used as the maximum safe distance of the hair dryer.
  • the main control board 213 receives the distance signal from the distance sensor 200, it compares the distance signal with the second distance threshold. When the distance between the hair dryer and the measured human body is less than or equal to At the second distance threshold, it indicates that the human body is still within the maximum safe distance, and the hair dryer can continue to work. When the distance between the blower and the measured human body is equal to the second distance threshold, the main control board 213 can control the fan assembly 60 and the heating assembly 50 to operate in the maximum working state. When the distance between the hair dryer and the measured human body is greater than the second distance threshold, it means that the human body is no longer within the maximum safe distance.
  • the main control board 213 can Control the fan assembly 60 and the heating assembly 50 to stop running, or adjust to the minimum running state to run.
  • the main control board 213 can control the fan assembly 60 and the heating assembly 50 to operate again.
  • the second preset distance is 1 m.
  • the second preset distance can be adjusted according to different detection requirements, which is not specifically limited here.
  • the first distance threshold and the second distance threshold are pre-stored in the main control board 213, so that the hair dryer can more intelligently adjust the wind temperature and speed of the wind, which can effectively solve the following problems: for example, the existing hair dryer When it is turned on for the first time, it can only run in the current gear, and it will run with high wind and high heat when it is empty.
  • the hair dryer in the embodiment of the present application can determine whether there is an object to be used when the hair dryer is turned on. If there is no object to be used, the main control board 213 can control the fan assembly 60 and the heating assembly 50 to stop running, or adjust to the minimum operating state run.
  • the main control board 213 can control the fan assembly 60 and the heating assembly 50 to reduce the wind speed and temperature, so as not to burn the scalp or hair of the user. If the distance is less than the first distance threshold, the main control board 213 can control the fan assembly 60 and the heating assembly 50 to stop running. If the first air outlet 12 of the hair dryer is too far away from the object to be used, the main control board 213 can control the fan assembly 60 and the heating assembly 50 to increase the wind speed and temperature to increase the hair drying effect.
  • the distance sensor 200 and the main control board 213 are connected through a distance identification circuit 16.
  • the distance identification circuit 16 receives the distance signal from the distance sensor 200 and transmits it to the main control board 213.
  • the main control board 213 controls the working status of the fan assembly 60 and the heating assembly 50 according to the distance information, thereby adjusting the wind temperature and wind speed of the blower.
  • the distance recognition circuit 16 includes, but is not limited to, an A/D conversion circuit (analog-to-digital converter).
  • the distance sensor 200 detects a distance signal and transmits it to the A/D conversion circuit for analog-to-digital conversion to form digital information.
  • the A/D conversion circuit transmits the digital information to the main control board 213, and the main control board 213 judges the distance information according to the digital information, and controls the working state of the fan assembly 60 and the heating assembly 50 according to the distance information.
  • the distance identification circuit 16 can be used as an independent component or integrated on the main control board 213.
  • the hair dryer further includes a wind nozzle 230, which is located at the active first air outlet 12 and connected to the main body 10.
  • the main body 10 of the hair dryer is usually used in conjunction with the air nozzle 230, and different air outlet effects can be achieved by replacing the air nozzle 230 with different functions.
  • One implementation of the air nozzle is that the air nozzle 230 includes an air outlet portion 231 and a connecting protrusion 22 provided on the air outlet portion 231, and the connecting protrusion 22 is rotatably connected with the main body 10.
  • the wind nozzle 230 can be rotatable relative to the main body 10 to change the angle of the wind.
  • an achievable way of the air outlet 231 is a flat mouth structure.
  • the end may block the distance sensor 200, and the blocked distance sensor 200 will not work normally, or the detected distance is always less than the first distance threshold, so the main control board 213
  • the control fan assembly 60 and the heating assembly 50 are in a stopped operation state.
  • each of the distance sensors 200 is electrically connected to the main control board 213 independently. Every connection between the two distance sensors 200 does not pass through the center point of the first air outlet 12.
  • Each distance sensor 200 can detect independently, that is, as long as one sensor detects the measured human body, the main control board 213 will automatically adjust the wind speed and temperature according to the distance information detected by the distance sensor 200. Referring to FIG. 11, the air outlet portion 231 of the tuyere 230 in FIG. 11 is in a vertical state, and the air outlet portion 231 of the tuyere 230 passes through the center point of the first air outlet 12.
  • the two distance sensors 200 are distributed on both sides of the air nozzle 230.
  • the connection line between the two distance sensors 200 does not pass through the center point of the first air outlet 12.
  • the two distance sensors 200 will not be blocked at the same time. That is to say, no matter how the air nozzle 230 rotates, there will always be one distance sensor 200 that is not blocked, and at least one distance sensor 200 is in a normal working state, so as to ensure that the hair dryer can be used normally.
  • the situation shown in FIG. 11 is a situation where the nozzle 230 does not block any one of the distance sensors 200, and both distance sensors 200 can detect normally.
  • the situation shown in FIG. 12 is that the air outlet portion 231 of the nozzle 230 has rotated a certain angle and blocked one distance sensor 200, but the other sensor is not blocked, and normal inspection can still be continued.
  • the distance sensor 200 includes a transmitting area and a receiving area.
  • the line between the transmitting area on each distance sensor 200 and the transmitting area and receiving area on the other distance sensor 200 does not pass through the center point of the first air outlet 12 .
  • the connecting line between the receiving area on each distance sensor 200 and the receiving area on another distance sensor 200 does not pass through the center point of the first air outlet 12. No matter how the air nozzle 230 rotates, the air nozzle 230 cannot simultaneously block the transmitting area and the receiving area of the two sensors, that is, one sensor is not blocked, and at least one sensor is in a normal working state, so as to ensure the normal use of the hair dryer.
  • the main control board 213 when there are at least two distance sensors 200 normally detected, the main control board 213 will receive two distance signals.
  • the user may shake the hair dryer back and forth, causing the hair dryer to have different blowing angles, resulting in inconsistent distance signals detected by at least two distance sensors 200.
  • the main control board 213 controls the working status of the fan assembly 60 and the heating assembly 50 according to the two distance signals, the wind speed and temperature of the air blower may be chaotic, and the blowing will not be good.
  • a correction circuit is provided on the main control board 213, and the correction circuit is electrically connected to the distance sensor 200.
  • the function of the correction circuit is to correct at least two distance signals into one distance signal, so that the main control board 213 controls the working state of the fan assembly 60 and the heating assembly 50 according to the corrected distance signal.
  • Ways for the correction circuit to correct the distance signal include but are not limited to the following ways:
  • correction circuit randomly selects one of the at least two distance signals to transmit to the main control board 213.
  • correction circuit selects the shorter distance signal between the first air outlet 12 and the measured human body among the at least two distance signals and transmits it to the main control board 213.
  • correction circuit calculates the average distance of at least two distance signals, and transmits the average distance to the main control board 213.
  • correction circuit can be used as an independent component or integrated on the main control board 213.
  • a heat insulation layer is provided on the outer periphery of the distance sensor 200.
  • the heat insulation layer is on the periphery of the distance sensor 200 to protect the distance sensor 200 from the temperature of the first air outlet 12.
  • the shape of the heat insulation layer can be set according to the shape of the distance sensor 200. It should be noted that the shape and material of the thermal insulation layer can be set according to different thermal insulation requirements, which are not specifically limited in the embodiment of the present application.
  • an installation hole is provided on the end of the first air outlet 12.
  • the distance sensor 200 is installed in the mounting hole.
  • the heat insulation layer is arranged between the mounting hole and the distance sensor 200.
  • the mounting hole can define the installation position of the distance sensor 200 to facilitate the positioning and installation of the distance sensor 200; on the other hand, the distance sensor 200 is located in the mounting hole, which protects the distance sensor 200 and prevents the distance sensor 200 from being damaged. Damage to foreign objects.
  • the heat insulation layer is arranged in the mounting hole to prevent the temperature from passing through the mounting hole and affecting the distance sensor 200.
  • the main body 10 is also provided with a handle 40.
  • the handle 40 is provided with a control unit 218, and the control unit 218 is electrically connected to the main control board 213.
  • the control unit 218 can be used to control the blower to perform different functions, for example, control the start and stop of the blower assembly 60 and the heating component 50, and control the blower assembly 60 to blow wind of different sizes.
  • the main control board can also be controlled by the control unit 218 The fan assembly 60 and the heating assembly 50 stop running.
  • the handle 40 is also provided with a battery assembly, the battery assembly is connected to the main control board 213, the battery assembly is configured to provide power to the main control board 213, the fan assembly 60, and the heating assembly 50, or the power cord of the hair dryer passes through the handle 40 It is connected to the main control board 213, and the power cord is connected to an external power source to provide power to the main control board 213, the fan assembly 60 and the heating assembly 50.
  • the control unit 218 may include: at least one control switch or touch control. When there are multiple control switches or touch controls, each control switch or touch control can correspond to different function controls, such as wind power control function, cooling and heating control function, and so on.
  • a temperature sensor is provided in the main body 10, and the temperature sensor is electrically connected to the main control board 213, so that the main control board 213 receives the temperature signal detected by the temperature sensor and controls the heating assembly 50 And the working state of the fan assembly 60.
  • the temperature sensor can detect the temperature of the heating assembly 50 in real time, and transmit the temperature signal to the main control board 213.
  • the main control board 213 controls the heating assembly 50 to turn off or reduces the power, and the fan assembly 60 to increase the wind power or turn off, and so on.
  • the temperature threshold can be set according to different temperature requirements, and is not specifically limited in the embodiment of the present application.
  • the distance sensor can detect the distance between the first air outlet of the hair dryer and the measured human body in real time.
  • the main control board can control the wind speed of the fan assembly to decrease, and the temperature of the heating assembly to decrease, so that the wind from the first air outlet is slightly hot. , Users don’t have to worry about burning the hair if the first air outlet is too close to the hair when using the hair dryer.
  • the main control board can control the wind speed of the fan assembly to increase, and the temperature of the heating assembly increases, so that the wind from the first air outlet is strong hot air .
  • the hair dryer users don’t have to worry that the first air outlet is too far away from the hair, the temperature and wind speed will be too low, and the hair blowing effect will not be good.
  • the distance sensor can detect the distance between the first air outlet of the hair dryer and the measured human body in real time.
  • the hair dryer can continue to work, and the fan assembly is in a breeze state.
  • the main control board can control the fan assembly and the heating assembly to stop running.
  • the distance sensor can detect the distance between the first air outlet of the hair dryer and the measured human body in real time.
  • the hair dryer can continue to work, and the hair dryer can adjust the wind speed and temperature of the wind according to the distance from the human body.
  • the main control board can control the fan assembly and the heating assembly to stop running, or adjust to the minimum operating state to run.
  • the heating wires have a temperature of about five hundred degrees, which can only be in direct contact with the mica support sheet.
  • the heating wire of the hair dryer product is wound on the mica sheet support frame 101, and the mica sheet support frame 101 is fixed on a cylinder 102.
  • the end surface of the cylindrical body 102 facing the fan assembly 60 is the windward surface 100.
  • the airflow from the fan assembly 60 hits the windward surface 100 frontally, and it is easy to form turbulence and generate noise.
  • this application proposes the following embodiments to reduce noise.
  • the hair dryer includes: a main body 10, a fan assembly 60, and a heating assembly 50.
  • the main body 10 has an air flow channel; the fan assembly 60 is used to output power for sucking air into the air flow channel; and the heating assembly 50 is used to heat the air flow in the air flow channel.
  • the air flow channel includes a first flow section 203 and a second flow section 201 with a step change, and a drainage section 202 is provided between the first flow section 203 and the second flow section 201 to make the air flow along the The drainage path provided by the drainage section 202 is from the first flow section 203 to the second flow section 201.
  • the arrow marked 204 in the figure schematically represents the airflow direction.
  • the position 1 in the figure is the air outlet position of the fan assembly, where the cross section is small and the air flow velocity is fast.
  • 2 is the second circulation section where the heating assembly is located, and the cross-sectional area of the second circulation section is larger than that of the first circulation section where the fan assembly is located.
  • 3 is the first air outlet 12 of the air flow channel. The airflow enters the first circulation section 203 from the first air inlet 11 of the airflow channel and accelerates, enters the second circulation section 201 for heating, and is discharged from the first air outlet 12.
  • a diversion section 202 is provided between the first flow section 203 and the second flow section 201 to guide the air flow from the fan assembly 60 to enter the second flow section 201 in an oblique direction as shown in FIG. 14a.
  • the technical solution provided by this embodiment does not have the windward side of the airflow frontal impact, and the airflow path is smoother, reducing the turbulence caused by the airflow hitting the plane, which helps reduce noise; at the same time, it can increase Air volume.
  • the first circulation section and the second circulation section may be any circulation section in the air flow channel, and are not limited to the two sections corresponding to the fan assembly 60 and the heating assembly 50 shown in FIGS. 14a and 14b.
  • Circulation sections 203 and 201 as long as the two adjacent circulation sections have stepped changes, the air flow will hit the stepped surface at the junction of the two circulation sections.
  • a drainage section can also be set between the two circulation sections to reduce Turbulence caused by air hitting a plane.
  • a space between the outer wall 140 of the fan assembly 60 and the inner wall 17 of the main body 10 is the first circulation section 203
  • the space between the outer wall 150 of the heating assembly 50 and the inner wall 17 of the main body 10 is the second circulation section 201.
  • the cross-sectional area of the inner wall 17 of the main body 10 at the first circulation section 203 is smaller than the cross-sectional area of the inner wall 17 of the main body 10 at the second circulation section 201 Area;
  • the cross-sectional area of the outer wall 140 of the fan assembly 60 is smaller than the cross-section of the outer wall 150 of the heating assembly 50;
  • the fan assembly 60 has a first axis parallel to the direction of air flow in the first circulation section 203;
  • the heating assembly 50 has a second axis parallel to the gas flow direction in the second flow section 201; the first axis coincides with the second axis.
  • the first axis and the second axis coincide with the axis of the main body 10.
  • the drainage section 202 can be formed by adding components between the fan assembly 60 and the heating assembly 50; or by providing a drainage structure on the heating assembly 50, or by adding a drainage structure to the fan assembly 60 Set the drainage structure on the way to form and so on. The detailed description will be given below.
  • a solution for forming a drainage section by setting a drainage structure on the heating assembly referring to Figures 14a, 14b and Figure 15, the heating assembly 50 is provided with the drainage structure 152 at one end close to the fan assembly 60; the drainage A section of space between the drainage surface 1521 of the structure 152 and the inner wall of the main body 10 is the drainage section 202.
  • the heating assembly 50 includes a fixing member 153 and a heating component 154.
  • one end of the fixing member 153 close to the fan assembly 60 is provided with the drainage structure 152; the heating member 154 surrounds the outer circumference of the fixing member 153.
  • the drainage structure 152 is a truncated cone with a small end facing the fan assembly 60 and a large end facing away from the fan assembly 60;
  • the inclined surface of the end surface and the small end surface is the drainage surface 1521.
  • the fixing member 153 is a cylindrical member with one end closed and the other end open; the drainage structure 152 is arranged at the closed end of the fixing member 153.
  • the closed end of the fixing member 153 faces the fan assembly 60, the purpose of which is to prevent airflow from entering the hollow inner cavity of the cylindrical member of the fixing member 153.
  • the heating component 154 includes: a support 1541 and a heating wire 1542.
  • the supporting member 1541 is arranged on the outer wall of the fixing member 153 and extends from the closed end to the open end of the fixing member 153; the heating wire 1542 is wound on the supporting member 1541.
  • the supporting member 1541 includes a plurality of mica flakes with different heights. The mica flakes are arranged at intervals on the outer wall of the fixing member.
  • the first layer of heating wires 15422 are wound on the short mica flakes, and the second layer of heating wires 15421 are wound on the tall mica flakes.
  • a solution for forming a drainage section by setting a drainage structure on the heating assembly referring to the schematic diagram shown in FIG. 16, the drainage structure 152 is provided at one end of the fan assembly 60 near the heating assembly 50; A section of space between the drainage surface 1521 and the inner wall 17 of the main body 10 is the drainage section 202.
  • the fan assembly 60 includes a motor housing (that is, the outer wall 140), a motor (not shown in the figure), and a fan 141.
  • the motor housing has opposite first and second ends; the motor is housed in the motor housing, and the power output end extends from the first end of the motor housing; the fan 141 and the power output of the motor The ends are connected to rotate under the drive of the motor.
  • the drainage structure 152 is provided at the second end of the motor housing. Further, the drainage surface 1521 is an inclined surface extending from the second end of the motor housing toward the heating assembly 50.
  • the drainage structure 152 has an inclined drainage surface 1521 directed from the air outlet side of the fan assembly 60 to the heating assembly 50.
  • the drainage structure 152 may be a structure in the inner cavity of the main body 10, not connected to any one of the fan assembly 60 and the heating assembly 50, and may be in contact with or have a certain gap.
  • a silencer component 90 can be added in the air flow channel, as shown in FIG. 17.
  • the silencer assembly 90 may be arranged between the heating assembly 50 and the fan assembly 60.
  • the muffler assembly 90 includes a porous muffler cover 91.
  • the porous sound-absorbing cover 91 is a cover body with two ends open, and the opening diameter of the first end is smaller than the opening diameter of the second end.
  • the surface of the cover body of the porous sound-absorbing cover 91 is parallel to the flow direction of the airflow in the drainage section. Referring to the specific examples shown in FIGS. 17 and 18, the first end of the porous sound-absorbing cover 91 is connected to the fan assembly 60, and the second end faces the heating assembly 50.
  • one end of the motor housing of the fan assembly 60 near the heating assembly 50 is provided with a motor cover 142, and the porous muffler cover 91 and the motor cover 142 are assembled to form a porous muffler cavity.
  • the sound absorption coefficient and frequency band of the porous sound-absorbing cover 91 can be adjusted through the aperture and the aperture ratio according to the spectral characteristics of the noise.
  • the sound-absorbing component may further include a porous sound-absorbing material 92 filled in the air flow channel.
  • the porous sound-absorbing material 92 is added to the cavity of the porous sound-absorbing cavity after the porous sound-absorbing cover 91 and the motor cover 142 are assembled to increase the sound absorption capacity of the overall structure.
  • the surface of the porous muffler cavity is parallel to the direction of the air flow, which does not affect aerodynamic performance and has no air flow regeneration noise; this structure can effectively reduce the noise in a specific frequency band area, resulting in a corresponding reduction in overall noise.
  • the porous sound-absorbing material may be a sound-absorbing sponge.
  • the porous muffler cavity can be filled with the cross section of the air flow channel, that is, the air flow from the fan assembly all enters the second flow section after passing through the porous muffler cavity; of course, the porous muffler cavity may not be filled with the air flow channel.
  • the cross section of the channel that is, a part of the airflow from the fan assembly enters the second circulation section after passing through the porous muffler cavity, and the other part directly enters the second circulation section.
  • Fig. 19 shows an appearance view of a hair dryer provided by an embodiment of the present application.
  • the hair dryer includes a main body 10, a handle 40, an air inlet grid 600 and an exposed part 700.
  • the air inlet grid 600 is arranged at the first air inlet 11 of the airflow channel; the exposed part 700 is located on the air inlet side of the air inlet grid 600; wherein, the exposed part 700 and the air inlet grid There are gaps between 600 for air circulation.
  • the air flow enters the gap from the edge of the exposed part 700, and then enters the air inlet grid 600, which helps to reduce noise.
  • the user can hold the hair dryer through the handle 40 to blow the air.
  • the handle 40 is provided with a control unit 218 (see FIGS. 10, 11 and 12 ).
  • the control unit 218 may include a master control switch 2181 and a mode selection switch 400.
  • the mode selection switch 400 may further include: a cold air mode selection switch 410, a high-power mode selection switch 420, etc., which are not specifically limited in this embodiment.
  • the handle 40 is also provided with a battery assembly, which is electrically connected to the controller assembly.
  • the battery assembly is configured to provide power to the components of the hair dryer, or the power cord 500 of the hair dryer is connected to the controller assembly through the handle 40, and the power cord 500 is connected
  • the external power supply provides power to the various components of the hair dryer.
  • the hair dryer is a hand-held hair dryer as an example.
  • the fan assembly of the blower works to form a negative pressure in the airflow channel to suck in external air.
  • the airflow enters the airflow channel through the first circulation section, and flows obliquely to the second circulation section under the action of the drainage section; Because of the existence of the airflow, the air flow will not hit the windward surface formed by the step drop frontally due to the step difference between the first circulation section and the first circulation section. The user can feel that the noise of the hair dryer is low and the use experience is good.
  • the fan assembly of the blower works in the airflow channel to form a negative pressure to suck in the external air.
  • the airflow enters the airflow channel through the first circulation section, and flows into the second circulation section in an oblique direction under the action of the drainage section; Because of the existence of the airflow, the air flow will not hit the windward surface formed by the step drop frontally due to the step difference between the first circulation section and the first circulation section.
  • part of the sound waves generated by the airflow enters the pores of the silencer components, and the friction in the pores is converted into heat and energy consumption is dissipated; the user can feel the low noise of the hair dryer during the use process, and the user experience is good. .
  • Figure 19 is a side view of a hair dryer provided by an embodiment of the application
  • Figure 20 is a rear view of a hair dryer provided by an embodiment of the application
  • Figure 21 is an embodiment of the application Axonometric view of the provided hair dryer.
  • the hair dryer provided in this embodiment includes: a main body 10, an air inlet grid 600 and an exposed part 700.
  • the main body 10 has an airflow channel (not shown in the figure); the air inlet grid 600 is located at the end of the main body, and air enters the airflow channel through the air inlet grid; the exposed part 700 is located on the air inlet The air inlet side of the wind grid 600; wherein there is a gap between the exposed part 700 and the air inlet grid 600 for air circulation.
  • the technical solution provided by the embodiment of the present application is to provide an exposed part 700 on the air inlet side of the air inlet grid 600, and there is a gap between the exposed part 700 and the air inlet grid 600 for gas to circulate; the air flow will not directly pass through
  • the air inlet grid 600 enters the air flow channel, but first enters the gap between the exposed part 700 and the air inlet grid 600, and then passes through the air inlet grid 600 to the air flow channel, which helps to reduce noise; in addition, the present application
  • the technical solution provided by the embodiment also avoids the problem that the air inlet grid 600 is completely exposed to the outside, and the hair dryer has a more beautiful appearance.
  • the exposed component 7000 is protrudingly arranged on the air inlet surface where the air inlet grid 600 is located, so that the gap includes a first gap D along the plane direction of the air inlet surface and The second gap L in the normal direction of the air inlet surface.
  • the air flow enters the gap from the edge of the exposed part 700, and then enters the air flow channel of the main body 10 through the air inlet grid 600.
  • the air flow enters the gap from the edge of the exposed part 700, and then enters the air inlet grid 600, which helps to reduce noise.
  • an achievable manner of the main body 10 in the embodiment of the present application is that the main body 10 includes a housing, and the cavity of the housing is Various functional components of the hair dryer are provided, and a first air inlet 11 and a first air outlet 12 are provided on the housing.
  • An air inlet grid 600 is provided at the first air inlet 11.
  • the components arranged inside the housing include, but are not limited to, the controller assembly 130, the heating assembly 50 connected to the controller assembly 130, the fan assembly 60, and the like.
  • the fan assembly 60 includes a motor that drives a fan and a fan that rotates to generate negative pressure.
  • the fan assembly 60 is configured to generate negative pressure during operation to draw air from the first air inlet 11 into the airflow channel of the main body 10, and perform the operation through the heating assembly 50. After heating, it blows out from the first air outlet 12.
  • the main body 10 is also provided with a handle 40 through which the user can hold the hair dryer to blow the air.
  • the handle 40 is provided with control keys connected to the control unit. The control keys can be used to control the hair dryer to perform different functions, for example, control the hair dryer to blow differently. The size of the wind.
  • the handle 40 is also provided with a battery assembly, the battery assembly is connected to the controller assembly 130, the battery assembly is configured to provide power to the components of the hair dryer, or the power cord 500 of the hair dryer is connected to the control unit through the handle 40, and the power cord 500 is connected to the outside
  • the power supply provides power to the various parts of the hair dryer.
  • the exposed member 700 shields at least a part of the air inlet grid 600.
  • the exposed part 700 shields at least a part of the air inlet grid 600, which inevitably affects the gas flow rate per unit time at the first air inlet 11. While reducing the noise, as much as possible to reduce the impact on the gas flow, the exposed part 700 shields a part of the air inlet grid 600.
  • the air inlet grid 600 has an end face 6001 facing the exposed part 700; the edge of the end face 6001 exceeds the projected contour edge of the exposed part 700 on the end face 6001.
  • the edge of the projected contour of the exposed part 700 on the end surface 6001 is kept at a fixed distance from the edge of the end surface 6001.
  • the fixed distance (that is, the gap D shown in FIG. 19) may be a value of 2-8 mm, such as 5 mm. Due to the blocking effect of the exposed part 700, with the above-mentioned design, air can evenly enter the air inlet grid 600 from the peripheral edge of the exposed part 700, and the air inlet path has a certain bend, which helps to reduce noise.
  • the approximate air intake area of the hair dryer needs to be about 1000 to 1400 square millimeters.
  • the distance between the air inlet grid and the exposed part can be adjusted to meet the above-mentioned requirement of the air inlet area during implementation.
  • the distance between the edge of the exposed part 700 and the air inlet grid 600 ie, the gap L shown in FIG. 19
  • the exposed part 700 in this embodiment can also be used as a holding part, and the user can easily remove the air inlet grid 600 from the main body 10 by holding the exposed part 700. That is, the exposed part 700 is connected to the air inlet grid 600; the air inlet grid 600 is detachably connected to the main body 10; the exposed part 700 is used as a gripping part and plays a role in the detachment force Next, the air inlet grid 600 is driven to be removed from the main body 10.
  • the air inlet grid 600 can be connected to the main body 10 in a variety of ways.
  • the air inlet grid 600 can be magnetically attached to the main body 10, or connected to the main body 10 by a screw thread, or connected to the main body 10 by a buckle.
  • the air inlet grid 600 can be magnetically attached to the main body 10, or connected to the main body 10 by a screw thread, or connected to the main body 10 by a buckle.
  • the exposed component 700 is connected to the central part 63 of the air intake grid 600; a plurality of ventilation holes 64 are evenly distributed around the central part 63. Further, the ventilation hole 64 is an arc-shaped hole extending along an arc from the central part 63 to the edge of the air inlet grid 600.
  • the cross section of the exposed part 700 is constantly The guide surface 71 is reduced to make the air flow flow into the air inlet grid 600 along the guide surface 71.
  • the exposed component 700 includes: an exposed panel 72 and a drainage plate 73.
  • the guide plate 73 is located between the exposed panel 72 and the air inlet grid 600; the guide surface 71 is provided on the guide plate 73 to guide the airflow from the outer edge of the guide plate 73 , And follow the arc path to the air inlet grid 600.
  • the exposed component 700 and the air inlet grid 600 can be connected by a variety of connection methods, such as welding, screw connection, buckle and card slot engagement, etc.; or, The exposed part 700 and the air inlet grid 600 are integrally formed.
  • FIG. 22 exemplarily shows a connection method, that is, the end surface of the air inlet grid 600 facing the exposed part 700 is provided with a first structure 61 that plays a role of positioning;
  • the exposed part 700 maintains a positional relationship with the air inlet grid 600 through the first structure 61; after the positional relationship between the air inlet grid 600 and the exposed part 700 is fixed, they are connected by a connecting part 80 .
  • the air inlet grid 600 is provided with a connecting through hole 62; on the end face of the air inlet grid 600 facing the exposed part 700, two diameters of the hole diameter of the connecting through hole 62 are located.
  • the two ends are respectively provided with positioning posts 611;
  • the exposed part 700 is provided with a positioning hole 74 adapted to the positioning post 611, and a connection blind hole 75 corresponding to the position of the connection through hole 62 (as shown in FIG. 24 );
  • the connecting member 80 penetrates the connecting through hole 62 into the connecting blind hole 75 to connect the air inlet grid 600 and the exposed member 700.
  • the end surface of the air inlet grid 600 facing the exposed part 700 is an arc surface.
  • the end surface of the exposed component 700 facing away from the air inlet grid 600 may also be a curved surface.
  • the curved design is one of aesthetics, and the other is to help reduce the noise of the whole machine.
  • the main body 10 in this embodiment may further include a tuyere 230, and the tuyere 230 is detachably connected to the first air outlet 12 of the airflow channel of the main body 10.
  • the tuyere 230 can concentrate the air flow blown from the first air outlet 12 to meet the user's use requirements in a specific scene (for example, when styling hairstyles).
  • the hair dryer is a hand-held hair dryer as an example.
  • the fan assembly of the blower works to form a negative pressure in the airflow channel to suck in external air.
  • the airflow from the back of the blower enters the gap between the exposed parts and the air inlet grid, and then enters the airflow channel through the air inlet grid. After being heated by the heating element, it is blown out from the first air outlet 12.
  • the airflow does not directly enter the inside of the main body through the air inlet grid, which helps to reduce noise. Users can feel that the hair dryer has low noise and a good user experience.
  • the user When users use the hair dryer, they find that there is more dust on the air inlet grid of the hair dryer. At this time, the user holds and rotates the exposed parts, and the air inlet grid can be removed from the main body of the hair dryer. After unloading, the user can clean the air inlet grid by washing or brushing. After the cleaning is completed, the user holds the exposed parts in his hand, places the air inlet grid at the connection position, and then rotates the air inlet grid to install it on the main body.
  • the inventor When using the existing hair dryer, the inventor turned on the hair dryer to blow the hair, and it felt too hot or too cold to blow for a while; then, he looked at the corresponding controls on the hair dryer to change the mode of the hair dryer by adjusting the controls. That is, the user experience of the existing hair dryer is not good.
  • the present application provides the following embodiments. The user can determine whether the air from the hair dryer is cold or hot without touching the air.
  • FIG. 25 is a schematic structural diagram of a hair dryer provided by an embodiment of the application. As shown in FIG. 25, this embodiment provides a hair dryer, which includes a main body 10 and an indicating component 250. Wherein, the end of the main body 10 has a first air inlet 11. The indicating component 250 surrounds the end of the main body 10 and is electrically connected to the main body 10, wherein the indicating component 250 displays different indication marks in response to the air outlet temperature of the hair dryer.
  • the indicator assembly 250 electrically connected to the main body 10 can display different indicator marks in response to the difference in the temperature of the air outlet of the main body 10, so that the user can learn the output of the main body 10 according to the different indicator marks.
  • Wind temperature The user can judge the wind temperature according to the different indication signs without touching the air outlet of the hair dryer.
  • the method is simple and intuitive to avoid potential hazards to the user when the hair dryer blows hot air.
  • an achievable manner of the main body 10 in the embodiment of the present application is that the main body 10 includes a housing, and the cavity of the housing is Various functional components of the hair dryer are provided, and a first air inlet 11 and a first air outlet 12 are provided on the housing.
  • An air inlet assembly 300 is provided at the first air inlet 11.
  • the air intake assembly 300 may at least include: an exposed part 700 and an air intake grid 600 as shown in FIG. 19.
  • the components arranged inside the housing include, but are not limited to, a controller assembly, a heating assembly 50 connected to the controller assembly, a fan assembly 60, and the like.
  • the fan assembly 60 includes a motor that drives a fan and a fan that rotates to generate negative pressure.
  • the fan assembly 60 is configured to generate negative pressure during operation to draw air from the first air inlet 11 into the main body 10, and after being heated by the heating assembly 50, It blows out from the first air outlet 12.
  • the main body 10 is also provided with a handle 40 through which the user can hold the hair dryer to blow the air.
  • the handle 40 is provided with control buttons connected to the controller assembly. The control buttons can be used to control the hair dryer to perform different functions, for example, to control the hair dryer to blow out. Winds of different sizes.
  • the handle 40 is also provided with a battery assembly, the battery assembly is connected to the controller assembly, the battery assembly is configured to provide power to other components, or the power cord of the hair dryer is connected to the controller assembly through the handle 40, and the power cord is connected to an external power source for other components Provide electricity.
  • the indicator assembly 250 can be arranged in different positions on the main body 10 so that the user can easily and intuitively see the indicator marks, for example, the side of the main body 10, the side of the main body 10 away from the handle 40, or the indicator assembly 250 can also be provided on the handle 40.
  • the indicator assembly 250 has an annular structure, and the airflow entering through the first air inlet 11 can pass through the annular structure.
  • the indicator assembly 250 of the ring structure can save space, and the inside of the ring structure can be used to set other parts of the hair dryer, such as the fan assembly 60, and the ventilation channel of the hair dryer can pass through the ring structure.
  • the ring-shaped indicator assembly 250 displays a wide range of indicator marks. When the user uses the hair dryer, the user often changes various angles to blow his hair.
  • the ring-shaped indicator assembly 250 can facilitate the user to easily observe from all angles. Indicates the logo.
  • the airflow entering through the first air inlet 11 can pass through the annular structure, and the airflow entering through the first air inlet 11 can blow through the annular structure, thereby taking away the heat generated during the operation of the indicating assembly 250 and improving the performance of the indicating assembly 250. Service life.
  • the outer surface of the indicator assembly 250 is flush with the outer surface of the main body 10. From the appearance, the indicator assembly 250 and the main body 10 are regarded as a whole, which makes the overall appearance of the hair dryer more beautiful. At the same time, the indicator assembly 250 does not protrude from the outer surface of the main body 10 to avoid excessive wear of the indicator assembly 250 and increase the service life of the indicator assembly 250 .
  • the outer surface of the indicator assembly 250 includes at least two light-emitting surfaces, wherein at least one light-emitting surface extends along the normal direction of the first air inlet 11, and at least one light-emitting surface The surface extends in the circumferential direction surrounding the main body 10.
  • the indicating component 250 displays the indicating mark, it can be displayed in at least two directions. The user can view the indicating mark along the normal direction of the first air inlet 11 and the circumferential direction of the main body 10, which is convenient for the user to watch. Adjust the angle, which is convenient for users to use.
  • the indicating component 250 includes a light board 210.
  • the light board 210 includes but is not limited to a ring structure.
  • the light board 210 includes a PCB (Printed Circuit Board) board and an LED (Light Emitting Diode) light source arranged on the PCB board.
  • the PCB board is electrically connected to the main body 10, and the main body 10 is the light board 210 Provide electricity.
  • the light board 210 may be arranged on the surface of the main body 10, or the main body 10 may be provided with a light-transmitting hole, and the light board 210 may emit light outward through the light-transmitting hole.
  • the indicator mark of the indicator assembly 250 includes but is not limited to the color of the light emitted by the LED light source. For example, when the light is blue, it means that the main body 10 is blowing cold wind. When the light turns red, it means that the main body 10 is blowing hot air. Or, the light has a gradual process. When the light is blue, it means that the main body 10 is blowing cold wind. When the color of the light gradually turns to red, it means that the wind blown by the main body gradually becomes hot until the outlet temperature exceeds a certain level. At the temperature, the light stops changing and stays in red.
  • the indicator mark of the indicator assembly 250 may also indicate different outlet temperatures by illuminating light sources at different positions.
  • a plurality of LED light sources are arranged in a circle, and the light sources at different positions are lit to indicate different outlet temperatures.
  • the indicator mark of the indicator component 250 can also indicate different outlet temperatures by illuminating different numbers of light sources. For example, the less the number of lit light sources, the lower the outlet temperature. It should be noted that the foregoing implementation of the indicator of the indicator component 250 can be implemented separately or in combination with each other, and the embodiment of the present application does not specifically limit it.
  • the indicator assembly 250 further includes a light guide 220.
  • the light guide 220 includes, but is not limited to, a ring structure.
  • the light guide 220 can transmit the light of the light board 210, make the light more uniform, and increase the quality of the product.
  • the light guide body 220 has a ring structure, which means that the overall shape of the light guide body 220 is a ring structure that matches the light board 210.
  • the light guide 220 has an abutment portion 221 and a light guide portion 222, the abutment portion 221 abuts against the light board 210, and the light guide portion 220 has an abutment portion 221 and a light guide portion 222.
  • 222 extends a certain length along the longitudinal direction of the main body 10, one end of the light guide portion 222 is connected to the contact portion 221, and the other end has a light emitting surface.
  • the abutting portion 221 is a ring structure matching the shape of the light board 210, and the light guide portion 222 can be understood as a cylindrical structure.
  • the abutting portion 221 and the light guide portion 222 may be an integrally formed structure.
  • the light guide 220 is made of a light-diffusing material or a fully transparent material, for example, made of a light-diffusing or fully transparent PC (Polycarbonate, polycarbonate) material.
  • the light board 210 can be installed not only on the surface of the main body 10, but also inside the main body 10, and the light emitted by the light board 210 is conducted to the surface of the main body 10 through the light guide plate.
  • the indicator assembly 250 includes a light board 210 and a light guide 220.
  • the light board 210 and the light guide 220 are both ring-shaped structures.
  • the light guide 220 is a ring-shaped structure and can also be understood as a light guide.
  • the body 220 has a cylindrical structure. Located at the end with the first air inlet 11, the main body 10 is provided with an annular accommodating cavity 135.
  • the light board 210 is located in the receiving cavity 135 and is electrically connected to the main body 10. One end of the light guide 220 extends into the receiving cavity 135 to abut the light board 210, and the other end extends out of the receiving cavity 135 to the indicating area of the main body 10.
  • the indicating area includes, but is not limited to, the outer surface of the main body with the end of the first air inlet 11.
  • the light emitted by the light board 210 enters the light guide 220 from one end of the light guide 220, and after being conducted by the light guide 220, is emitted through the other end of the light guide 220, so that the light is emitted from the outer surface of the main body 10.
  • the light board 210 and the light guide 220 are both ring structures, which can effectively save the internal space of the hair dryer.
  • the inside of the ring structure can be used to set other parts of the hair dryer, such as the fan assembly 60.
  • the ventilation channel of the hair dryer can pass through the ring structure.
  • the airflow entering through the first air inlet 11 can pass through the annular structure, and the airflow entering through the first air inlet 11 can blow through the annular structure, thereby taking away the heat generated when the indicator assembly 250 is working, and improving the use of the indicator assembly 250 life.
  • the light guide 220 of the ring structure has a wide display range of indication marks. When the user uses the hair dryer, the user often changes various angles to blow the hair.
  • the light guide 220 of the ring structure is convenient for the user from all angles. Observe the indicator.
  • the outer periphery of the end of the light guide 220 located on the outer surface of the main body 10 is covered with a decorative cover 23.
  • the decorative cover 23 can protect the light guide 220, and on the other hand, the decorative cover 23 can further function as a light guide, so that the light is more uniform.
  • the decorative cover 23 can be designed with the appearance of the main body 10, so that the overall appearance of the hair dryer is more beautiful.
  • the accommodating cavity 135 is located inside the end of the main body 10 at one end of the first air inlet 11, and the accommodating cavity 135, the light board 210, the light guide 220 and the decorative cover 23 are all annular structures.
  • the main body 10 has a cylindrical structure, the receiving cavity 135 is arranged along the circumference of the main body 10, the lamp board 210 of the ring structure is arranged in the receiving cavity 135, and the light guide body 220 and the decorative cover 23 both surround the main body 10 in a circle.
  • the light board 210 emits light, and the light passes through the light guide 220 to the decorative cover 23.
  • the aperture surrounds the outer circle of the main body 10, which is convenient for users to watch. The difference is that the angle can be adjusted for viewing, which is convenient for users to use.
  • the light board 210 has a plurality of lamp beads on the side facing the light guide 220, and the plurality of lamp beads are distributed on the lamp board 210 in a ring shape.
  • the light guide 220 includes a contact portion 221 and a light guide portion 222 disposed on the contact portion 221.
  • the abutting portion 221 abuts the light board 210, and a plurality of grooves 2211 are provided on the abutting portion 221, and each groove 2211 contains at least one lamp bead.
  • the light guide portion 222 extends from the receiving cavity 135 to the indicating area of the main body 10.
  • the indicating area includes, but is not limited to, the outer surface of the main body with the end of the first air inlet 11.
  • the light board 210 is located in the accommodating cavity 135, and the abutting portion 221 of the light guide 220 is used to abut the light board 210. Therefore, the abutting portion 221 needs to extend into the accommodating cavity 135 to abut the light board 210.
  • the light guide portion 222 of the light guide 220 needs to transmit the light emitted by the light board 210 to the outer surface of the main body 10. Therefore, the light guide portion 222 needs to extend out of the accommodating cavity 135 to the outer surface of the main body 10.
  • the part of the light guide portion 222 that extends to the outer surface of the main body 10 is flush with the outer surface of the main body 10, so that the light guide portion 222 does not protrude from the outer surface of the main body 10, avoids excessive wear of the light guide portion 222, and improves the light guide portion 222. Service life.
  • the outer surface of the light guide portion 222 includes at least two light exit surfaces, wherein at least one light exit surface extends in the normal direction of the first air inlet 11, and at least one light exit surface extends in a circumferential direction surrounding the main body 10.
  • the light guide portion 222 displays the indicator mark, it can be displayed in at least two directions. The user can view the indicator mark along the normal direction of the first air inlet 11 and the circumferential direction of the main body 10, which is convenient for the user to view. There is no need to adjust the angle, which is convenient for users to use.
  • the groove 2211 on the abutting portion 221 can act as a lens.
  • the light emitted by the lamp bead can be more concentrated after being refracted by the groove 2211, and then transmitted to the outer surface of the main body 10 through the light guide portion 222, and the light is transmitted from the guide portion 222 to the outer surface of the main body 10.
  • the light part 222 emits more uniformly, avoiding the situation where the light is dark.
  • the end of the light guide portion 222 away from the abutting portion 221 has an undulating structure, which can improve the strength of the connection with the decorative cover 23 and at the same time increase the aesthetics.
  • the groove 2211 includes but is not limited to a hemispherical structure. It should be noted that the shape of the groove 2211 can be set according to different light emission requirements. In the embodiment of the present application, the groove 2211 is not limited to a hemispherical structure. The groove 2211 may also have other shapes, such as an ellipse. Structure, saddle-shaped structure, figure-of-eight structure, etc.
  • the light guide 220 can be connected to the main body 10 in a variety of ways.
  • One possible way is to continue to refer to FIGS. 29 and 30, the abutment portion 221 and/or the guide
  • the light portion 222 is provided with a plurality of first clamping portions 223, and a plurality of second clamping portions 223 are disposed in the receiving cavity 135 at positions corresponding to the first clamping portions 223.
  • the first clamping portion 223 is connected to the second clamping portion, so that the light guide 220 is connected in the receiving cavity 135.
  • the first clamping portion 223 includes but is not limited to a protrusion, and the second clamping portion includes a groove 2211 that cooperates with the protrusion.
  • first clamping portion 223 is a groove 2211
  • second clamping portion is a protrusion.
  • the installation position of the light guide 220 can be fixed by the first clamping portion 223 and the second clamping portion, and the light guide 220 can be installed on the main body 10 simply and quickly.
  • the contact portion 221 and the light guide portion 222 are Part of the surface is covered with a light-shielding layer 224.
  • the light-shielding layer 224 can be disposed on the surface of the light guide 220 that does not require light-in and light-out, so that light cannot be transmitted from the part with the light-shielding layer 224, but can only be transmitted from the part where the light-shielding layer 224 is not provided.
  • the light-shielding layer 224 may be disposed on the rest area of the abutting portion 221 except for the groove, and on the light guide portion 222 except for the light emitting surface.
  • the light guide 220 transmits light, the light can only propagate through the set light path, so as to avoid divergence of the light and weakening of the light intensity.
  • the light-shielding layer 224 can be made of light-reflecting material.
  • the light-reflective material is coated on the light guide 220 to form the light-shielding layer 224.
  • the side of the light-shielding layer 224 facing the light guide 220 can reflect light to prevent light from being reflected. Absorption.
  • the reflective material includes but is not limited to aluminum.
  • the light When the light is blue, it means that the subject is blowing cold wind. When the light gradually changes from blue to red, it means that the wind blown by the subject gradually becomes hot. When the temperature of the wind exceeds a certain temperature, the light stops changing and stays in red. When the light turns red, it means that the subject is blowing hot air.
  • FIG. 31 is a schematic diagram of the internal structure of the handle of the hair dryer provided by an embodiment of the application. Please refer to Figures 19, 20, 21 and 31, the hair dryer provided in this embodiment includes a main body 10 and a handle 40. It should be noted that, in the embodiment of the present application, the hair dryer is a hand-held hair dryer.
  • the main body 10 has a first air inlet 11 and a first air outlet 12.
  • the main body 10 may include a housing, various functional components of the hair dryer are arranged in an inner cavity enclosed by the housing, and a first air inlet 11 and a first air outlet 12 are arranged on the housing.
  • the functional components arranged inside the housing include, but are not limited to, the controller assembly 130 and the heating assembly 50 and the fan assembly 60 connected to the controller assembly 130.
  • the controller component 130 may include a main control board.
  • the fan assembly 60 includes a motor that drives a fan and a fan that rotates to generate negative pressure.
  • the fan assembly 60 is configured to generate negative pressure during operation to draw air from the first air inlet 11 into the main body 10, and after being heated by the heating assembly 50, The first air outlet 12 blows out.
  • the handle 40 is connected to the main body 10.
  • the extension direction of the handle 40 may be perpendicular to the connecting direction of the first air inlet 11 and the first air outlet 12.
  • the handle 40 can also be rotated relative to the main body 10, so that the handle 40 can be switched between the folded position and the unfolded position, so as to facilitate the storage of the hair dryer.
  • the handle 40 of the hair dryer of this embodiment may be cylindrical.
  • the cylindrical handle 40 is convenient for the user to hold, feels better, and has better aesthetics.
  • the handle 40 is provided with a first switch and a second switch.
  • the operating surface of the first switch is perpendicular to the connection line between the first air inlet 11 and the first air outlet 12 (the dotted line in Figure 19) and faces the first inlet.
  • the air outlet 11, the operating surface of the second switch is parallel to the connection line between the first air inlet 11 and the first air outlet 12.
  • the first switch and the second switch in this embodiment can be any function selection switches, which are not limited in this embodiment.
  • the first switch is the master control switch 2181 and the second switch is the mode selection switch 400 as an example.
  • the master control switch 2181 is used to control the activation or deactivation of the hair dryer
  • the mode selection switch 400 is used for the user to select the working mode of the hair dryer.
  • the user holds the hair dryer handle 40 with his right hand, and the user holds the hair dryer to blow his hair against his head.
  • the first air outlet 12 is located on the left side of the main body 10, and the first air outlet 12 is located on the left side of the main body 10.
  • the tuyere 11 is located on the right side of the main body 10. Looking at the handle 40 from top to bottom, the user holds the handle 40 counterclockwise with four fingers, the thumb rests on the handle 40 on the side close to the first air inlet 11, and the free ends of the remaining four fingers are located on the side of the handle 40 facing the user .
  • the master control switch 2181 is located on the handle 40 on the side facing the first air inlet 11
  • the mode selection switch 400 is located on the handle 40 facing the user. That is, the operating direction of the operating surface of the mode selection switch 400 is perpendicular to the line connecting the first air inlet 11 and the first air outlet 12.
  • the first switch and the second switch are arranged separately, the layout is reasonable, conforms to the user's usage habits, and the operation is convenient.
  • operation surfaces of the first switch and the second switch refer to the switch surfaces that the user's finger touches when the user operates the switch.
  • the following description uses the first switch as the master control switch, and the second switch as the mode selection switch, so as to more clearly express the effect of the technical solution.
  • the designer can set the first switch and the second switch as other functional switches as needed, which is not limited in this embodiment.
  • the distance from the main control switch 2181 to the main body 10 may be 24 mm to 30 mm. More preferably, the distance from the main control switch 2181 to the main body 10 is 27 mm. After continuous experiments and calculations, the inventor has selected 27mm as the most suitable distance between the main control switch 2181 and the main body 10. In this way, when the user's hand is held up to the maximum, the thumb is held on the lower side of the switch. It will touch the main control switch 2181, which will produce an uncomfortable feeling. When the thumb is up, you can just touch the main control switch 2181, which is convenient, fast and comfortable to operate.
  • the master control switch 2181 may be a push button.
  • the master control switch 2181 has two switching positions, the OFF position (close position) and the ON position (start position).
  • the ON position can be located above the OFF position.
  • the user pushes the master control switch 2181 upwards to make the master control
  • the switch 2181 is switched to the ON position and the hair dryer is activated.
  • the main control switch 2181 is switched to the OFF position, and the hair dryer is turned off.
  • the ON position can be located below the OFF position.
  • the user pushes the main control switch 2181 downwards, so that the main control switch 2181 is switched to the ON position, and the hair dryer starts.
  • the control switch 2181 is pushed back upwards, so that the main control switch 2181 is switched to the OFF position and the blower is turned off. Since the user’s thumb is placed vertically when the user is holding the handle 40, in this embodiment, the master control switch 2181 is designed in the form of a push button, which is more suitable for the structure of the human hand, is more conducive to thumb operation, and conforms to the user Operating habits.
  • the position of the master control switch 2181 and the position of the mode selection switch may be perpendicular to each other.
  • the appearance of the entire hair dryer is more regular and beautiful.
  • the number of mode selection switches is not limited, and it can be set according to the function of the hair dryer.
  • the user can select the hair dryer to work in different modes by triggering different mode selection switches, which conforms to the intelligent selection function of the hair dryer and can be flexibly fitted. User needs.
  • the mode selection switch 400 may include two, and the distance between the master control switch 2181 and the two mode selection switches 400 may be equal. In this way, the connection between the master control switch 2181 and the two mode selection switches 400 can form an isosceles triangle.
  • the possible distance between the two mode selection switches is 13mm ⁇ 19mm. In this embodiment, preferably, the distance between the two mode selection switches is 16 mm. Through experiments, the inventor found that when the distance between the two mode selection switches is 16mm, when the user operates with one hand, it can avoid accidental touch and avoid the inconvenience caused by the distance between the two mode selection switches.
  • the hair dryer provided by the embodiment of the present application includes a main body and a handle. The main body has a first air inlet and a first air outlet.
  • the handle of the hair dryer is provided with a first switch and a second switch.
  • the operating surface of the first switch faces the first
  • the operating direction of the operating surface of the second switch is perpendicular to the connection line between the first air inlet and the first air outlet, so that when the user holds the handle, the thumb can just touch the first switch, and the second switch is operated by the thumb.
  • One switch, and the end of the four-finger free end can just touch the second switch.
  • the second switch can be selected by four fingers, which is easy to operate, conforms to the user's operating habits, realizes functional division, reasonable layout, prevents misoperation, and can effectively improve users Experience.
  • the first air outlet 12 may be located on the left side of the mode selection switch 400, and the first air inlet 11 may be located on the right side of the mode selection switch 400.
  • the mode selection switch 400 is located on the side of the handle 40 visible to the user when the user holds the hair dryer with the right hand. The user selects the operation without turning the hair dryer over to select the mode selection switch 400 and then using it normally, the operation is convenient and the user experience is better.
  • Fig. 32 is a control principle diagram of a hair dryer provided by an embodiment of the application.
  • the main body 10 may be provided with a controller assembly 130 and a heating assembly 50 and a fan assembly 60 electrically connected to the controller assembly 130.
  • the controller assembly 130 may be provided with a control circuit for controlling the working state of the heating assembly 50 and the fan assembly 60 .
  • the controller assembly 130 can control the fan assembly 60 in a variety of working states, for example, control the start and stop of the fan assembly 60, control the power of the motor driving the fan, and control different speeds to realize the fan assembly
  • the amount of wind blowing from 60 controls the blower assembly 60 to blow strong wind, breeze, etc.
  • the controller assembly 130 can also control various working states of the heating assembly 50, for example, control the start and stop of the heating assembly 50, and control the heating assembly 50 by controlling the energizing current of the heating assembly 50, so that the heating assembly 50 can output the maximum power.
  • the temperature of the air blower can be changed into hot air, slightly hot air, etc., so that the hair dryer can work in different working modes.
  • the hair dryer can be in a preset default working mode.
  • the heating assembly 50 is in a warm air state, and the fan assembly 60 is in a breeze state. If the user needs to change this Working mode, you can change the current working mode of the hair dryer by triggering different mode selection switches.
  • the default working mode of the hair dryer is not limited to the above description, and those skilled in the art can specifically set it according to the actual situation, and this embodiment is only an example.
  • the mode selection switch 400 may include a cold air mode selection switch 410.
  • the cold air mode selection switch 410 may be electrically connected to the controller assembly 130 for controlling the heating assembly 50 not to generate heat when the cold air mode selection switch 410 is closed.
  • the cold air mode selection switch 410 may be closed by pressing, and the cold air mode selection switch 410 may be a push switch.
  • the controller component 130 receives the signal to control the heating.
  • the component 50 does not generate heat.
  • the specific method for controlling the heating component 50 to not generate heat may be to cut off the circuit connected to the heating component 50, or to control the current of the heating component 50 to zero.
  • the wind power of the fan assembly 60 may not change, that is, the wind power in the default working mode only causes the hair dryer to blow out cold air to meet the user's demand for using cold air to dry hair in hot weather.
  • the mode selection switch 400 may also include a high-power mode selection switch 420.
  • the high-power mode selection switch 420 is electrically connected to the controller assembly 130, for when the high-power mode selection switch 420 is closed, the controller assembly 130 controls the fan assembly 60 to switch to the maximum power operation, and controls the heating assembly 50 to operate at the maximum power fever.
  • the high-power mode selection switch 420 may be closed by pressing, and the high-power mode selection switch 420 may be a push switch. After the user presses the high-power mode selection switch 420, the controller component 130 receives the signal.
  • the motor of the fan assembly 60 is controlled to run at the maximum power, so that the fan can rotate at the maximum speed and blow the maximum wind, and the heating assembly 50 can be controlled to pass the maximum current, so that the heating assembly 50 generates heat at the maximum power, and the blower blows the hottest air to meet The user's needs for fast dry hair.
  • the mode selection switch 400 is substituted for the temperature control switch in the prior art, which can effectively reduce the number of times the user presses the switch.
  • the mode selection switch 400 can be adjusted in place after one operation, which can effectively improve the user experience.
  • the cold air mode selection switch 410 and the high power mode selection switch 420 can be arranged vertically along the extension direction of the handle 40. Specifically, the cold air mode selection switch 410 may be located above the high power mode selection switch 420, or the cold air mode selection switch 410 may be located in the high power mode. Select switch 420 below. When the distance between the cold air mode selection switch 410 and the high-power mode selection switch 420 is 16mm, when the distance between the main control switch 2181 and the main body 10 is 27mm, the distance between the upper mode selection switch and the main body 10 is 19mm, and The distance between the mode selector switch located below and the main body 10 is 35mm.
  • the number of mode selection switches in this embodiment can also be multiple. Designers in the art can add multiple smart options according to the number of mode selection switches to meet the needs of users for multiple hair drying methods. This embodiment is different. One example.
  • an indicator light may be provided on the front wall 2100 of the handle 40, and the indicator light may be electrically connected to the controller assembly 130.
  • the controller assembly 130 controls the hair dryer to be in different working modes, the indicator light Can emit light in different states.
  • the indicator lights can be displayed in different colors and/or emit light with different brightness, or there are multiple indicator lights.
  • the more indicator lights that emit light the greater the wind blowing.
  • the indicator light can emit yellow light by default.
  • the indicator light can emit green light
  • the high power mode selection switch 420 of the hair dryer is triggered, the indicator light can emit red light.
  • the luminous intensity of the indicator light can be changed according to the wind power of the hair dryer.
  • there are multiple indicator lights for example, there are three vertically arranged indicator lights. When the wind of the hair dryer is the smallest, only one indicator light can be illuminated. When it is mid-range, there can be two indicator lights. When the wind blower is at the highest wind, all three indicator lights can be illuminated.
  • the handle 40 is also provided with a battery assembly, the battery assembly is connected to the controller assembly 130, the battery assembly is configured to provide power to the controller assembly 130, the heating assembly 50, and the fan assembly 60, or the power cord 500 of the hair dryer passes through the handle 40 is connected to the controller assembly 130, and the power cord is connected to an external power source to provide electrical energy for the controller assembly 130, the fan assembly 60, and the heating assembly 50.
  • the hair dryer is a hand-held hair dryer as an example.
  • the user’s thumb can be just on the side of the hair dryer handle facing the first air inlet.
  • the user’s thumb is tilted up, that is, directly touching the main control switch, and the main control switch is turned on so that it is in position.
  • ON position the hair dryer works in the default working mode, and when the user needs to make the hair dryer blow cold air, the four fingers held by the user can directly touch the position of the mode selection switch on the side of the handle, press the cold air mode selection switch, the hair dryer works in cold air In mode, improve comfort.
  • any one of the user's four fingers can press the high-power mode selection switch, so that the hair dryer blows with the hottest wind and the maximum wind.
  • each switch on the handle can be touched, and the user does not need to change the holding state to select the switch, thereby effectively improving the user experience.
  • the noise of the blower is mainly produced by the fan assembly.
  • the fan assembly When the fan assembly is in operation, due to the high-speed rotating mechanical motion and high-speed airflow, a large noise is generated, and the noise is concentrated in the middle and high frequency bands, and the use comfort is reduced.
  • the inventor believes that when the current hair dryer is working, the noise generated by the fan in the hair dryer can pass through the gap between the solid parts on the hair dryer and the air inlet grid without any hindrance, and the grid holes on the air inlet grid are directed to the outside. Spread, so that the noise can be spread out from the first air inlet of the hair dryer, so that the user can hear, so that the user's use comfort is reduced.
  • the present application provides the following embodiments, which can reduce the overall noise of the hair dryer, especially the mid-to-high frequency noise, without affecting the use performance, while improving the product quality, and improving the user's comfort.
  • FIG. 33 is a schematic diagram of an exploded structure of a hair dryer provided by an embodiment of the application
  • FIG. 34 is a schematic diagram of a plan structure of a front cover provided by an embodiment of this application
  • FIG. 35 is a schematic diagram of a three-dimensional structure of a front cover provided by an embodiment of the application , As shown in Figure 33 to Figure 35.
  • a hair dryer which has an airflow channel (not shown in the figure) including a first air inlet 11 and a first air outlet 12.
  • the first air inlet 11 has an air inlet surface, and the air It enters the air flow channel through the air inlet surface and flows out from the first air outlet 12.
  • the hair dryer includes an exposed part 700 protruding from the air inlet surface.
  • the exposed part 700 includes a front cover plate 710 facing the air inlet surface and a rear cover plate 720 facing away from the air inlet surface.
  • the front cover plate 710 is provided with a first silencer hole. 711: Guide noise into the first muffler cavity formed by the front cover 710 and the rear cover 720.
  • the front cover plate 710 is provided with a first silencing hole 711, and the front cover plate 710 and the rear cover plate 720 form a first silencing cavity, and noise can be guided into the first silencing cavity through the first silencing hole 711
  • the first silencing cavity can effectively absorb the noise transmitted from the hair dryer, especially the mid and high frequency noise, to achieve the purpose of noise reduction, so as to reduce the overall noise of the hair dryer, without affecting the performance, while improving the product quality, and improving the user's comfort.
  • the hair dryer includes a main body 10 with an air flow channel in the main body 10, and the exposed part 700 is located on the air inlet side of the air flow channel and protrudes from the air inlet surface.
  • the exposed part 700 at least partially shields the first air inlet.
  • the air inlet 11 makes the noise propagating from the inside to the outside of the main body 10 partly pass through the first silencing hole 711 into the first silencing cavity.
  • the first silencing cavity can effectively absorb the noise transmitted from the main body 10 to the rear of the hair dryer, especially mid- and high-frequency noise, which can achieve the purpose of noise reduction without affecting the performance of the hair dryer while improving product quality and improving user comfort.
  • an achievable air intake method of the first air inlet 11 is that there is a gap for air flow between the front cover 710 and the air intake surface, and the air enters the air flow channel through the gap.
  • the air flow does not enter the airflow channel directly through the air inlet surface, but first enters the gap between the front cover 710 and the air inlet surface, and then enters the airflow channel.
  • the front cover 710 at least partially shields the air inlet surface. With the blocking effect of the cover plate 710, the airflow can evenly enter the airflow channel from the peripheral edge of the front cover plate 710, and the airflow inlet path has a certain bend, which helps to reduce noise.
  • This kind of air inlet method of the first air inlet 11 can minimize the impact on the gas flow while reducing noise.
  • the front cover 710 also avoids the problem that the air inlet surface is exposed to the outside, making the hair dryer more beautiful in appearance.
  • a possible implementation of the front cover 710 is that there are multiple first silencing holes 711, and the multiple first silencing holes 711 are evenly distributed on the front cover 710.
  • the front cover 710 and the rear cover 720 are connected to form a first silencing cavity, and the first silencing cavity communicates with the outside through the first silencing hole 711.
  • the noise can be guided into the first silencing cavity through the first silencing hole 711, and the structure of the first silencing hole 711 can preliminarily realize noise cancellation.
  • the size of the first silencing hole 711 is small, which has a suppressing effect on the mid-to-high frequency sound waves.
  • the first silencing hole 711 When the noise passes through the first silencing hole 711, especially when the mid-to-high frequency noise passes through the first silencing hole 711, the first silencing hole 711 will apply the sound wave With a certain silencing resistance, the sound energy of medium and high frequency noise is rubbed in the pores of the first silencing hole 711 and converted into heat energy to be dissipated, so that the sound waves passing through the first silencing hole 711 are weakened. At the same time, due to the small size of the first silencing hole 711, the noise entering the first silencing cavity is not easy to propagate from the first silencing hole 711 again, which can effectively suppress the mid- and high-frequency sound waves contained in the noise. In addition, the first silencing hole 711 can also effectively reduce the noise generated by Helmholtz resonance.
  • the arrangement of the first silencing holes 711 is except that the plurality of first silencing holes 711 are evenly distributed around the central part of the front cover 710. It is also possible that the first silencing holes 711 are randomly arranged around the central part of the front cover 710.
  • each of the first silencing holes 711 can individually apply silencing resistance, that is, each of the first silencing holes 711 can individually apply silencing resistance.
  • Each of the muffler holes 711 can function to suppress noise alone, and combined with a plurality of first muffler holes 711 to work together to suppress noise.
  • the axis of the first silencing hole 711 is parallel to the axis of the main body 10, so that the noise can be smoothly guided into the first silencing cavity through the first silencing hole 711.
  • the first air inlet 11 is provided with an air inlet grid 600, and a plurality of ventilation holes are evenly distributed around the central part of the air inlet grid 600 64, each ventilation hole 64 corresponds to at least one first silencer hole 711.
  • the ventilation holes 64 of the air intake grid 600 are used for air intake and isolation of larger foreign objects, and at the same time, the noise inside the hair dryer can also be transmitted to the outside through the ventilation holes 64.
  • the first silencing hole 711 is arranged corresponding to the vent hole 67, on the one hand, it can ensure that after the noise is transmitted from the vent hole 67, it can smoothly enter the first silencing cavity through the first silencing hole 711. On the other hand, the structure of the first silencing hole 711 achieves the purpose of initially silencing the noise.
  • the arrangement of the first silencing holes 711 can be arranged in accordance with the shape of the ventilation holes 64.
  • the ventilation holes 64 are self-inlet grids.
  • the central part of 600 extends along the arc to the arc-shaped hole at the edge of the air inlet grid 600.
  • Each ventilation hole 64 corresponds to a plurality of first silencing holes 711, and the plurality of first silencing holes 711 corresponding to the same vent hole 64 are sequentially arranged along the arc of the vent hole 64.
  • the ventilation holes 64 are arc-shaped holes, which on the one hand can ensure the smooth passage of airflow, and on the other hand, have a certain obstructive effect on noise.
  • the noise will not directly pass through the air inlet grid 600, and the propagation path of sound waves will be bent to a certain extent. , Which helps reduce noise.
  • the multiple first silencing holes 711 are arranged in sequence along the ventilation holes 64 to ensure that each first silencing hole 711 can correspond to the ventilation holes 64, and the first silencing holes 711 are arranged corresponding to the ventilation holes 64 to ensure noise After passing through the air vent 64, it can smoothly enter the first silencing cavity through the first silencing hole 711.
  • the structure of the first silencing hole 711 achieves the purpose of initially silencing the noise.
  • the front cover plate 710 faces the air inlet grid 600 and is provided with a silencer groove 712 corresponding to the position of each ventilation hole 64. At least one first silencing hole 711 is provided in each silencing groove 712.
  • the sound wave can be further reduced by the sound-absorbing groove 712.
  • the sound wave propagates into the sound-absorbing groove 712, through the continuous reflection and diffraction of the inner wall of the sound-absorbing groove 712, part of the sound energy is converted by friction during the reflection and diffraction process.
  • the thermal energy is dissipated, and the sound waves passing through the front cover 710 are weakened.
  • the depth of the first silencer hole 711 can be changed through the silencer groove 712, thereby changing the frequency of noise reduction.
  • the noise that needs to be reduced is the noise generated by the fan assembly 60 of the hair dryer.
  • one possible way is to provide a first silencer hole 711
  • Corresponding parameters such as the corresponding aperture, hole depth, and aperture ratio of the front cover 710 determine the main frequency band of noise reduction.
  • the settings can be set according to the actual measurement results of the noise generated by the fan assembly 60 when the hair dryer is actually used.
  • fan assemblies 60 of the same model can use the same setting parameters.
  • the diameter of the first silencing hole 711 is in the range of 1.0 to 1.5 mm; the depth of the first silencing hole 711 is in the range of 1.0 to 2.0 mm; the first silencing hole 711 is on the front cover 710
  • the range of open porosity is 5% to 15%.
  • a sound-absorbing cotton 730 is further provided in the first sound-absorbing cavity, and the sound-absorbing cotton 730 covers a plurality of first sound-absorbing holes 711 .
  • the sound-absorbing cotton 730 has a microporous structure. Through the micro-porous structure, the sound energy is rubbed in the pores of the sound-absorbing cotton and converted into heat and energy consumption is dissipated, so that the sound waves passing through the front cover 710 are weakened.
  • the noise-absorbing cotton 730 is located between the front cover 710 and the rear cover 720. When the front cover 710 and the rear cover 720 are connected, a clamping structure is formed.
  • the noise-absorbing cotton 730 is fixed by the clamping structure.
  • the noise-absorbing cotton 730 can cover after being fixed.
  • the sound-absorbing cotton 730 can absorb the sound wave energy in the noise to avoid resonance of the sound waves in the noise. At the same time, the sound-absorbing cotton 730 can also convert sound energy into heat energy to achieve the purpose of noise reduction.
  • the sound-absorbing cotton 730 and the first sound-absorbing hole 711 work together to reduce the overall noise of the hair dryer.
  • a connection method of the exposed component 700 is that the central part of the front cover plate 710 has a connection hole 713 and a positioning groove 714.
  • a connecting post 721 and a positioning post 722 are provided on the side of the rear cover 720 facing the front cover 710.
  • the connecting post 721 is connected to the air inlet grid 600 through the connecting hole 713, and the positioning post 722 is connected to the positioning slot 714.
  • the connecting column 721 and the air inlet grid 600 can be connected in a variety of ways, such as screw connection, snap connection, or magnetic connection.
  • the positioning post 722 and the positioning slot 714 can be connected by a variety of connection methods, such as screw connection, snap connection, or magnetic connection.
  • a plurality of second muffler holes 66 are provided on the central part of the air inlet grid 600.
  • the second muffler hole 66 and the front cover 710 form a second muffler cavity.
  • the plurality of ventilation holes 64 are distributed around the plurality of second silencing holes 66.
  • the plurality of second muffler holes 66 can be distributed in the central part of the air inlet grid 600 according to a predetermined arrangement.
  • the second muffler holes 66 can be used for air inlet and sound attenuation.
  • the noise can be guided into the second silencing cavity through the second silencing hole 66, and the structure of the second silencing hole 66 can preliminarily realize noise cancellation.
  • the size of the second muffler hole 66 is small, and it has a suppressing effect on the medium and high frequency sound waves contained in the noise.
  • the second muffler hole 66 When the noise passes through the second muffler hole 66, especially when the medium and high frequency noise passes through the second muffler hole 66, the second muffler hole 66 A certain silencing resistance is applied to the sound waves, and the sound energy of medium and high frequency noise is rubbed in the pores of the second silencing hole 66 to be converted into heat energy and dissipated, so that the sound waves passing through the second silencing hole 66 are weakened. At the same time, due to the small size of the second silencing hole 66, the noise entering the second silencing cavity is not easy to propagate from the second silencing hole 66 again, which can effectively suppress the mid- and high-frequency sound waves contained in the noise.
  • Part of the noise propagated from the hair dryer passes through the second silencing hole 66 and the second silencing chamber for noise reduction, and some noise passes through the first silencing hole 711 and the first silencing chamber for noise reduction. Part of the noise transmitted from the hair dryer is absorbed and consumed, thereby reducing the overall noise of the hair dryer.
  • the second silencing hole 66 is arranged in a manner that a plurality of second silencing holes 66 can be distributed in the center of the air inlet grid 600 according to a predetermined arrangement. It is also possible that the second silencing holes 66 are randomly arranged in the center of the air inlet grid 600.
  • each second silencing hole 66 can individually apply silencing resistance, that is, each second silencing hole 66 can individually apply silencing resistance.
  • Each of the muffler holes 66 can individually play a role in suppressing noise, and combined with a plurality of second muffler holes 66 to work together to suppress noise.
  • the noise generated by the fan assembly 60 of the hair dryer needs to be reduced.
  • a second silencer 66 Parameters such as the corresponding aperture, hole depth, and aperture ratio of the air inlet grid 600 determine the main frequency band of noise reduction, and the aperture ratio here refers to the aperture ratio of the second silencer hole 66.
  • the settings can be set according to the actual measurement results of the noise generated by the fan assembly 60 when the hair dryer is actually used.
  • fan assemblies 60 of the same model can use the same setting parameters.
  • the diameter of the second silencing hole 66 is in the range of 1.0 to 1.5 mm; the depth of the second silencing hole 66 is in the range of 1.0 to 2.0 mm; the second silencing hole 66 is in the air inlet grid 600
  • the range of the open porosity is 5% to 15%.
  • the hair dryer is a hand-held hair dryer as an example.
  • the external airflow flows through the gap between the front cover and the air inlet surface and enters the airflow channel.
  • the airflow does not enter the airflow channel directly through the air inlet surface, but enters the airflow channel from the peripheral edge of the front cover.
  • the air inlet path has a certain bend, which helps to reduce noise.
  • the noise propagated to the rear of the hair dryer is partly guided into the first silencing cavity formed by the front cover and the rear cover through the first silencing hole.
  • the first silencing hole can initially reduce the noise, and the first silencing cavity can be effective Absorb the noise propagated in the hair dryer, especially the mid-high frequency noise, to reduce the overall noise of the hair dryer and achieve the purpose of noise reduction, without affecting the performance, while improving the product quality, and improving the user's comfort.
  • the sound power of the hair dryer is reduced by more than 0.4dB, and the sound pressure level at the rear is reduced by more than 1.5dB.
  • the external airflow flows through the gap between the front cover and the air inlet surface and enters the airflow channel.
  • the airflow does not enter the airflow channel directly through the air inlet surface, but enters the airflow channel from the peripheral edge of the front cover.
  • the air inlet path has a certain bend, which helps to reduce noise.
  • the noise propagated to the rear of the hair dryer is partially guided through the first silencing hole into the first silencing cavity formed by the front cover and the rear cover, and the silencing cotton is arranged in the silencing cavity.
  • the first silencing hole can initially reduce the noise, and the first silencing cavity further absorbs the noise through the silencing cotton.
  • the sound-absorbing cotton has a microporous structure. Through the micro-porous structure, the sound energy is rubbed in the pores of the sound-absorbing cotton and converted into heat energy to be dissipated, so that the sound wave passing through the front cover is weakened, so as to achieve the purpose of noise reduction.
  • the first silencing cavity can effectively absorb the noise transmitted from the hair dryer, especially the mid- and high-frequency noise, to reduce the overall noise of the hair dryer, without affecting the performance, while improving the product quality, and improving the user's comfort.
  • the external airflow flows through the gap between the front cover and the air inlet surface and enters the airflow channel.
  • the airflow does not enter the airflow channel directly through the air inlet surface, but enters the airflow channel from the peripheral edge of the front cover.
  • the air inlet path has a certain bend, which helps to reduce noise.
  • the second silencing hole and the second silencing cavity for noise reduction.
  • the size of the second silencing hole is small, which suppresses the medium and high frequency sound waves contained in the noise.
  • the second silencing hole especially when the middle and high frequency noise passes through the second silencing hole, the second silencing hole will exert a certain silencing resistance to the sound wave, and the sound energy of the middle and high frequency noise will be rubbed in the pores of the second silencing hole and converted into heat energy Dissipate and weaken the sound wave passing through the second muffler hole.
  • the first silencing hole can initially reduce the noise.
  • the size of the first silencing hole is small, and it has a suppressing effect on the middle and high frequency sound waves.
  • the first silencing hole will exert a certain silencing resistance to the sound wave, and the sound energy of medium and high-frequency noise is rubbed in the pores of the first silencing hole and converted into heat energy to be dissipated, so that the sound wave passing through the first silencing hole is weakened.
  • the first silencing cavity further reduces noise through silencing cotton.
  • the second silencing hole and the second silencing cavity combine the first silencing hole and the first silencing cavity to form a double silencing, so that most of the noise transmitted from the hair dryer is absorbed and consumed, thereby reducing the overall noise of the hair dryer.
  • the main body of the hair dryer has a main air flow channel, and a fan and a motor for controlling the rotation of the fan are arranged in the main air flow channel.
  • the hair dryer is usually required to blow different winds to achieve fast or slow speed. Dry hair.
  • the hair dryer can blow different amounts of wind, but the brushed motor cannot realize the speed change through software adjustment.
  • the hair dryer needs to use a brushless motor, and the brushless motor needs to control the three-phase changes through the MOS tube on the main control board, but the MOS tube itself generates serious heat, which constitutes the heating element of the brushless motor. If the heat dissipation is not good, it will affect the use of the entire hair dryer.
  • the present application also provides the following embodiments to provide a hair dryer with a smaller volume and better heat dissipation.
  • FIG. 39 is a cross-sectional view of a hair dryer provided in an embodiment of the application.
  • FIG. 40 is a cross-sectional view of the main body of a hair dryer provided in an embodiment of the application;
  • FIG. 41 is a partial exploded view of the hair dryer provided in an embodiment of the application.
  • the hair dryer in the embodiment of the present invention includes a main body 10 for blowing out airflow.
  • the hair dryer in the embodiment of the present invention may be a hand-held hair dryer, and may also include, but is not limited to, a self-moving cleaning robot with a blowing function, a vehicle-mounted vacuum cleaner, an air purifier, and the like.
  • the main body 10 may be the main body of the hand-held hair dryer as shown in FIGS. 39 and 40, and may also include, but is not limited to, the main body of the self-moving cleaning robot, the main body of the vehicle-mounted vacuum cleaner, the main body of the air purifier, etc.
  • the hair dryer described in the above and the following embodiments is illustrated by taking a hand-held hair dryer as an example, which does not constitute an improper limitation of the embodiment of the present invention.
  • a hand-held hair dryer it also includes a handle 40 connected to the main body 10.
  • the handle 40 is used for the user to hold. The user can hold the hair dryer through the handle 40 to blow the air.
  • the handle 40 is provided with a control connected to the controller assembly. Button, use the control button to control the hair dryer to perform different functions, for example, control the hair dryer to blow different sizes of wind, and control the hair dryer to blow at different temperatures.
  • a power connection wire (not shown in the figure) is also connected to the lower end of the handle 40, and the power connection wire is used to connect to an indoor power source to supply power to the hair dryer.
  • the main body 10 includes: a housing 11c, an inner cavity A is formed inside the housing 11c, and various functional components of a hair dryer are arranged in the inner cavity A, for example, a fan assembly 60, a motor 112 that drives the fan assembly 60 to operate, and a main control board are provided. 213.
  • the heating component 50 wherein the motor 112 and the heating component 50 are electrically connected to the main control board 213, and the heating component 50 is used to heat the airflow to be blown by the hair dryer.
  • the motor 112 includes a motor case, and a stator and a rotor located in the motor case.
  • the motor case may include a motor front case 1121 and a motor rear case 1122.
  • the motor front case 1121 and the motor rear case 1122 can be used with fasteners such as screws. Disconnect the connection.
  • a main airflow channel 110 is formed inside the housing 11c.
  • the motor 112 and the fan assembly 60 can be arranged in the main airflow channel 110. With the location of the motor 112 as a boundary, the main airflow channel 110 can be divided into an air inlet channel 110a and an air outlet channel. 110b.
  • the air inlet channel 110 a includes an air inlet 1101 a, the air inlet 1101 a is located on one side of the motor 112, the air outlet channel 110 b includes an air outlet 1101 b, and the air outlet 1101 b is located on the other side of the motor 112.
  • the housing 11c of the main body 10 may be cylindrical, preferably cylindrical, the air inlet 1101a may be located at the rear end surface of the housing 11c, and the air outlet 1101b may be located at the front end surface of the housing 11c.
  • the motor 112 controls the rotation of the fan assembly 60, and the rotation of the fan assembly 60 draws in the outside air from the air inlet channel 110a and blows it out from the air outlet channel 110b.
  • an air inlet grid 111a and an exposed part 112a may be provided at the air inlet 1101a.
  • the exposed part 112a is located on the air inlet side of the air inlet grid 111a; wherein there is a gap for air flow between the exposed part 112a and the air inlet grid 111a.
  • the motor heating element 30c generates heat when the motor 112 is working, and the motor heating element 30c is disposed in the housing 11c and located outside the main air flow channel 110.
  • the motor heating element 30c may include a MOS tube.
  • the motor heating element 30c may be arranged on the main control board 213.
  • the main control board 213 may be ring-shaped.
  • the ring-shaped main control board 213 may be arranged on the outside of the motor housing and located on the motor. The space between the casing and the casing 11c is effectively used for the hair dryer.
  • the main control board 213 may be all located outside the main air flow channel 110, or a part of the main control board 213 may be located outside the main air flow channel 110, and the motor heating element 30 on the main control board 213 is located outside the main air flow channel 110.
  • the hair dryer further includes a second airflow channel 40c, which is provided in the housing 11c and is used to guide the airflow through the motor heating element 30 and the motor 112 in sequence.
  • the second airflow channel 40c may communicate with the outside and be independent of the main airflow channel 110.
  • the second air flow channel 40c is independent of the main air flow channel 110 means that the second air flow channel 40c and the main air flow channel 110 are physically separated from each other, and cannot be limited to the second air flow channel 40c.
  • the air flow is conveyed independently from the main air flow channel 110.
  • the second airflow channel 40c is located in the interval between the air inlet 1101a and the motor 112, and the airflow flowing into the second airflow channel 40c first passes through the motor heating element 30, and then under the suction force of the main airflow channel 110, the second After the air flow in the air flow channel 40c passes through the motor heating element 30, it is drawn into the main air flow channel 110, and then converges to the motor 112 of the main air channel 110 to dissipate heat to the motor heating element 30 and the motor 112 in turn.
  • the motor heating element 30 may be located on the radially outer side of the motor 112, and the second air flow channel 40c is correspondingly located on the radially outer side of the air inlet channel 110a.
  • the second air flow channel 40c is located at the side of the air inlet channel 110a and is independent of the air inlet channel 110a, and the motor heating element 30 dissipates heat through the second air channel 40c independent of the air inlet channel 110a.
  • the temperature of the airflow increases, and the higher-temperature airflow enters the main airflow channel 110.
  • the higher-temperature airflow passes through the heating assembly 50, it can be heated up to The preset temperature can effectively reduce the power consumption of the heating assembly 50 in the main air flow channel 110.
  • a light source assembly 115 may be further provided in the inner cavity A of the housing 11 c of the main body 10, and the light source assembly 115 may be electrically connected to the main control board 213.
  • the light source assembly 115 may include a ring-shaped light board 1151, a plurality of light sources 1152 arranged on the ring light board 1151, and a light ring assembly 1153.
  • the light board 210 is arranged in the cavity A, and the light ring assembly 1153 surrounds the housing 11c in the circumferential direction. One circle is covered on the ring light board 1151. When in use, the light board 210 carrying the light source 1152 emits light, and the light is emitted through the light ring assembly 1153.
  • the aperture surrounds the outer circle of the main body 10, which is convenient for the user to watch from different angles, and is convenient for the user to use.
  • the air inlet passage 110a may be provided with an air inlet filter assembly 116.
  • the air inlet filter assembly 116 is used to filter the outside air through the air inlet filter assembly 116 and then enter the main air flow passage 110.
  • the air inlet filter The principle of filtering the air by the component 116 can be to block or absorb particulate impurities, so that the airflow blown from the hair dryer is as clean as possible, and to avoid harm to the user's body as much as possible.
  • At least one assembly is further provided between the motor heating element 30 and the air inlet 1101a, and the second air flow channel 40c is provided in the gap in the assembly.
  • the assembly includes at least one of the following: an air inlet filter assembly 116, a motor rear housing 1122, and a light source assembly 115. Then, the air drawn from the outside passes through the second air flow channel 40c provided on the at least one assembly and then passes through the motor heating element 30, so as to dissipate the motor heating element 30.
  • the second air flow channel 40c may be a through hole provided on the at least one assembly mentioned above.
  • the general idea is that a through hole or a hole may be opened in an existing component at a suitable position in the cavity A to form a second air flow.
  • the channel 40c does not need to be additionally provided with a heat dissipating element for dissipating heat from the motor heating element 30, such as a heat sink, etc., thereby effectively saving costs.
  • a second air flow channel independent of the main air flow channel is provided in the housing, a motor is provided in the main air flow channel, a motor heating element is provided outside the main air flow channel, and the second air flow channel guides the air flow sequentially Pass the motor heating element and the motor, so as to take away the heat of the motor heating element and the motor, and realize the heat dissipation of the motor heating element and the motor. Since the second air flow channel is independent of the main air flow channel, the motor is passed through the independent second air flow channel. The heating element and the motor dissipate heat, do not occupy the volume of the main air flow channel, and do not affect the air flow in and out. While effectively dissipating the motor heating element and the motor, there is no need to increase the volume of the hair dryer. The heat dissipation of the motor heating element and the motor is well guaranteed , Which can effectively improve the service life of the hair dryer.
  • FIG. 42 is a cross-sectional view of the main body of a hair dryer provided by another embodiment of the application. As shown in FIG. 42, this embodiment is based on the above-mentioned embodiment. Further, the second air flow passage 40c is provided in the housing 11c and has an arc-shaped guide surface S, so that the second air flow passage 40c can guide the air flow to The arc path passes through the motor heating element 30 and the motor 112 in turn.
  • the arc-shaped guide surface S may include a single arc surface, or may include a plurality of continuous arc surfaces, and the air flow is guided by the arc-shaped guide surface S to circulate in an arc path, which avoids improving the smoothness of air flow.
  • the surface of the arc-shaped guide surface S is a smooth surface, so that the air flow can flow more smoothly, and the air flow resistance can be reduced.
  • the smoothness of the arc-shaped guide surface S can be judged by the hand feeling.
  • the surface that is grainy to the touch is a rough surface, and the surface that is smooth to the touch is a smooth surface.
  • the smoother the surface, the smoother the arc-shaped guide surface S the smaller the resistance to the air flow, and the smoother the air flow.
  • FIG. 43 is a schematic diagram of a filter holder in a hair dryer provided by an embodiment of this application
  • FIG. 44 is a schematic diagram of an air inlet filter in a hair dryer provided by an embodiment of this application.
  • the air inlet filter assembly 116 may include an air inlet filter 1161, and a filter bracket 1162 for fixing the air inlet filter 1161 to the housing 11c.
  • the air inlet filter 1161 may be provided in the air inlet channel 110a and cover the air inlet channel 110a in a radial direction. In order to filter the dust and impurities in the air inlet, improve the air quality of the air blown from the blower.
  • the filter support 1162 can be detachably fixed to the housing 11c by a snap connection, a screw connection or the like.
  • the filter support 1162 can be connected to the motor rear housing 1122 by a fastener such as a screw.
  • the air inlet filter 1161 can be detachably connected with the filter bracket 1162, for example, connected by fasteners such as screws, or connected by a buckle, or the air inlet filter 1161 can be screwed with the filter bracket 1162, and air intake
  • the outer circumferential surface of the filter screen 1161 is provided with external threads, and the inner circumferential surface of the filter screen holder 1162 is provided with internal threads, and the two are screwed together.
  • the air inlet filter 1161 may be a flexible filter so as to improve the flexibility of installation and disassembly of the air inlet filter 1161.
  • the air inlet filter 1161 is a rigid filter, which cannot be bent or deformed.
  • the second air flow channel 40 c is formed on the filter support 1162. Since the filter support 1162 serves to fix the air intake filter 1161, its structural strength is sufficient. Therefore, the second air flow channel 40c is provided on the filter support 1162, which has little effect on the structural strength of the filter support 1162.
  • the second airflow channel 40c can also be provided on other assemblies as required.
  • the number of the second airflow channel 40c is not limited to one, and the location of the second airflow channel 40c is not limited to one.
  • the specific structure design is not limited in this embodiment.
  • the second air flow channel 40c includes a plurality of through holes 41 arranged in an arc shape on the filter support 1162.
  • a plurality of through holes 41 may be arranged at equal intervals, and the diameter of each through hole 41 may be the same to ensure the heat dissipation balance.
  • the second air flow channel 40 c may further include a groove 42 provided on the filter screen support 1162, each through hole 41 is located in the groove 42, and the groove 42 faces the motor heating element 30.
  • the airflow entering from the air inlet 1101a first passes through the dispersed through holes 41 and then flows toward the motor heating element 30 through the grooves 42. That is to say, the airflow first passes through the small aperture (the aperture of the through hole 41) and then suddenly changes to large. Aperture (aperture of groove 42), the airflow can flow in quickly and flow out of groove 42 at a slower speed, thereby slowing down the flow rate of airflow at the motor heating element 30, so as to fully take away the heat of the motor heating element 30.
  • the second air flow passage 40c communicates with the air inlet passage 110a.
  • the air flow out of the second air flow channel 40c may enter the air inlet channel 110a through the structural gap between the second air flow channel 40c and the air inlet channel 110a.
  • the motor rear housing 1122 may be located between the motor heating element 30 and the air inlet filter assembly 116; the motor rear housing 1122 may be provided with a through hole to allow air flow After flowing through the motor heating element 30 from the second air flow passage 40c, under the strong suction force provided by the fan assembly 60 of the main air flow passage 110, it passes through the motor rear housing 1122 and is sucked into the air intake passage 110a (specifically flows through The path can be referred to as shown by the arrow in Figure 1).
  • the motor rear housing 1122 has a ring shape, so that the airflow passes through the motor rear housing 1122 and flows into the main airflow channel 110.
  • a gap may be left between the inner circumferential surface of the rear housing 1122 and the fixed parts, and the air flow may also flow into the main air flow channel 110 through the gap at the inner ring of the motor rear housing 1122.
  • the second airflow channel 40c may not communicate with the air inlet channel 110a. In this case, after the airflow passes through the second airflow channel 40c and the motor heating element 30, it can pass through the gap between the components in the housing 11c and the housing 11c, and/or the assembly gap between the components, and /Or the through holes or hollows of the component itself circulate, and finally flow out from the air outlet 1101b through the air outlet channel 110b.
  • the second airflow channel 40c may be arranged directly opposite to the motor heating element 30.
  • the so-called second air flow passage 40c and the motor heating element 30 are directly opposite to mean that if there is no intermediate part between the second air flow passage 40c and the motor heating element 30, the air flow out of the second air flow passage 40c should be directly sprayed to the front
  • the motor heating element 30 can improve the heat dissipation efficiency to the greatest extent.
  • a gap X is left between the motor rear housing 1122 and the housing 11c in the radial direction, so that the airflow passing through the second airflow channel 40c passes through the motor heating element 30 along a bent path.
  • the air flow out of the second air flow channel 40c flows through the motor heating element 30 through the gap X, and may pass the motor heating element 30 along a bent path.
  • the motor rear housing 1122 will not obstruct the air flow through the motor heating element 30.
  • the air flow out of the second air flow channel 40 c is at least partially parallel and/or perpendicular to the outer surface of the motor heating element 30.
  • the motor rear housing 1122 may have at least a partial projection on the motor heating element 30.
  • the air flow from the second air flow channel 40c passes between the motor rear housing 1122 and the housing 11c. After the gap X, a part can flow directly to the motor heating element 30 in a direction perpendicular to the motor heating element 30 in the axial direction, and the other part can flow in a direction parallel to the motor heating element 30.
  • the air flow passing through the second air flow channel 40 c contacts the motor heating element 30 in a direction parallel to the front surface of the motor heating element 30.
  • the air flow out of the second air flow channel 40c can pass through the gap X between the motor rear housing 1122 and the housing 11c, and can directly follow It circulates parallel to the direction of the motor heating element 30, so that the airflow and the motor heating element 30 form the largest area of contact, which achieves a better heat dissipation effect.
  • a part of the airflow flowing out of the second airflow channel 40c may also flow through the motor heating element 30 at any oblique angle.
  • the air flow out of the second air flow channel 40c can be directly and vertically Flow to the outer surface of the motor heating element 30.
  • the fan in the main airflow channel rotates to generate a large suction force, which sucks most of the air around the air inlet into the main airflow channel, and a small part of the air passes through the second airflow on the filter bracket
  • the channel flows to the heating element of the motor and goes through the main air flow channel to take away the heat of the heating element of the motor and realize heat dissipation.
  • the fan in the main airflow channel rotates to generate a large suction force, which sucks most of the air around the air inlet into the main airflow channel, and a small part of the air passes through the second airflow on the filter bracket
  • the channel flows to the heating element of the motor, and flows to the air outlet through other gaps in the shell, so as to take away the heat of the heating element of the motor and realize heat dissipation.

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  • Cleaning And Drying Hair (AREA)

Abstract

L'invention concerne un sèche-cheveux et un élément détachable. Le sèche-cheveux comprend : un corps principal (10), le corps principal (10) comprenant un boîtier, et le boîtier étant pourvu d'une première entrée d'air (11) et d'une première sortie d'air (12) ; et un premier élément de liaison (13) disposé au niveau de la première sortie d'air (12). Le premier élément de liaison (13) est utilisé pour être relié magnétiquement à l'élément détachable de façon à ce que, lorsque l'élément détachable est monté sur le corps principal ou détaché de celui-ci (10), seule une force magnétique doit être surmontée, sans avoir besoin d'effectuer d'autres opérations, ce qui rend les processus de montage et de détachement pratiques et rapides, et permet ainsi à un utilisateur de remplacer librement des éléments détachables ayant différentes fonctions.
PCT/CN2020/128733 2019-12-26 2020-11-13 Sèche-cheveux et élément détachable WO2021129225A1 (fr)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
CN201911371261.3 2019-12-26
CN201911369189.0A CN113040499A (zh) 2019-12-26 2019-12-26 一种吹风机及可拆卸件
CN201911369181.4A CN113040498A (zh) 2019-12-26 2019-12-26 一种吹风机
CN201911369181.4 2019-12-26
CN201911369138.8A CN113040494A (zh) 2019-12-26 2019-12-26 一种吹风机
CN201911369176.3 2019-12-26
CN201911369189.0 2019-12-26
CN201911369138.8 2019-12-26
CN201911371261.3A CN113040500A (zh) 2019-12-26 2019-12-26 吹风机
CN201911369176.3A CN113040497A (zh) 2019-12-26 2019-12-26 吹风机
CN202010203437.0 2020-03-20
CN202010203437.0A CN113491379B (zh) 2020-03-20 2020-03-20 吹风机

Publications (1)

Publication Number Publication Date
WO2021129225A1 true WO2021129225A1 (fr) 2021-07-01

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ID=76573153

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/128733 WO2021129225A1 (fr) 2019-12-26 2020-11-13 Sèche-cheveux et élément détachable

Country Status (1)

Country Link
WO (1) WO2021129225A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI838279B (zh) 2022-06-17 2024-04-01 志勇無限創意股份有限公司 吹風裝置

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WO2008053099A2 (fr) * 2006-10-31 2008-05-08 Seb S.A. Seche-cheveux comportant une grille demontable
CN108835833A (zh) * 2018-08-01 2018-11-20 杭州乐秀电子科技有限公司 吹风机
CN208987895U (zh) * 2018-08-03 2019-06-18 胡金平 一种锤子型电吹风
CN209573667U (zh) * 2018-12-03 2019-11-05 深圳市深创电器有限公司 一种可磁吸连接辅助造型工具的吹风机
CN209732892U (zh) * 2019-03-15 2019-12-06 莱克电气股份有限公司 吹风机
CN209732888U (zh) * 2019-01-10 2019-12-06 杭州乐秀电子科技有限公司 一种工作可靠的电吹风
CN211379980U (zh) * 2018-12-20 2020-09-01 添可智能科技有限公司 智能吹风机

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Publication number Priority date Publication date Assignee Title
WO2008053099A2 (fr) * 2006-10-31 2008-05-08 Seb S.A. Seche-cheveux comportant une grille demontable
CN108835833A (zh) * 2018-08-01 2018-11-20 杭州乐秀电子科技有限公司 吹风机
CN208987895U (zh) * 2018-08-03 2019-06-18 胡金平 一种锤子型电吹风
CN209573667U (zh) * 2018-12-03 2019-11-05 深圳市深创电器有限公司 一种可磁吸连接辅助造型工具的吹风机
CN211379980U (zh) * 2018-12-20 2020-09-01 添可智能科技有限公司 智能吹风机
CN209732888U (zh) * 2019-01-10 2019-12-06 杭州乐秀电子科技有限公司 一种工作可靠的电吹风
CN209732892U (zh) * 2019-03-15 2019-12-06 莱克电气股份有限公司 吹风机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI838279B (zh) 2022-06-17 2024-04-01 志勇無限創意股份有限公司 吹風裝置

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