CN113040494A

CN113040494A - Hair drier

Info

Publication number: CN113040494A
Application number: CN201911369138.8A
Authority: CN
Inventors: 宋康
Original assignee: Tineco Intelligent Technology Co Ltd
Current assignee: Tineco Intelligent Technology Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2021-06-29

Abstract

The embodiment of the application provides a hair drier, includes: the end part of the main body is provided with a first air inlet; an indicating assembly surrounding an end of the main body and electrically connected to the main body, wherein the indicating assembly exhibits different indicators in response to an outlet air temperature of the blower. According to the technical scheme, the user can not contact the air outlet of the blower, the air outlet temperature can be judged according to the difference of the indication marks, the mode is simple and visual, and potential harm to the user is caused when the blower blows hot air.

Description

Hair drier

Technical Field

The application relates to the technical field of machinery, especially, relate to a hair-dryer.

Background

The hair drier is a small household appliance frequently used in daily life of people and generally comprises a hair drier body and an air nozzle, wherein air flow generated by the hair drier body can be discharged through the air nozzle so as to be used by users. When the hair drier is used, cold air or hot air can be blown out according to different requirements.

However, when the hair dryer used at present is used, a person needs to touch the airflow blown by the hair dryer to judge whether the air is cold air or hot air, and if the air touches the hot air, the potential harm to the user may be caused.

Disclosure of Invention

The present application has been made in view of the above problems, so as to provide a hair dryer that solves the above problems.

In one embodiment of the present application, there is provided a hair dryer comprising:

the end part of the main body is provided with a first air inlet;

an indicator assembly surrounding the end of the body and electrically connected to the body, wherein the indicator assembly exhibits different indicators in response to the outlet air temperature of the blower.

Optionally, the indication assembly is an annular structure through which the airflow entering through the first air inlet can pass.

Optionally, an outer surface of the indicating assembly is flush with an outer surface of the body.

Optionally, the outer surface of the indication assembly includes at least two light emitting surfaces, at least one of the light emitting surfaces extends along a normal direction of the first air inlet, and at least one of the light emitting surfaces extends along a circumferential direction around the main body.

Optionally, the indicating assembly includes a lamp panel and a light guide body, and both the lamp panel and the light guide body are of an annular structure;

the end part with the first air inlet is provided with an annular accommodating cavity;

the lamp panel is positioned in the accommodating cavity and is electrically connected with the main body;

light conductor one end stretch into hold the chamber with the lamp plate butt, the other end stretches hold the chamber extremely the instruction area of main part.

Optionally, the outer periphery of one end of the light guide body located on the outer surface of the main body is covered with a decorative cover.

Optionally, a plurality of lamp beads are arranged on one side of the lamp panel facing the light guide body, and are annularly distributed on the lamp panel;

the light guide body comprises a butting part and a light guide part arranged on the butting part; the abutting part abuts against the lamp panel, a plurality of grooves are formed in the abutting part, and at least one lamp bead is accommodated in each groove; the light guide part extends out of the accommodating cavity to the indicating area of the main body.

Optionally, the groove is of a hemispherical structure.

Optionally, a plurality of first clamping portions are arranged on the abutting portion and/or the light guide portion, and a plurality of second clamping portions are arranged in the accommodating cavity corresponding to the first clamping portions;

the first clamping portion is connected with the second clamping portion so that the light guide body is connected in the accommodating cavity.

In addition, optionally, a partial surface of the abutting portion and the light guide portion is covered with a light shielding layer.

The technical scheme that this application embodiment provided, with main part electrical connection's instruction subassembly, can respond to the difference of the air-out temperature of main part, show different instruction sign to make the user learn the air-out temperature of hair-dryer according to different instruction signs. The user can not contact the air-out of hair-dryer, can judge the air-out temperature according to the difference of instruction sign, and the mode is simple directly perceived, when avoiding the hair-dryer to blow out the hot-blast, causes the potential harm to the user.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Figure 1 is a schematic cross-sectional exploded view of a blower according to an embodiment of the present application;

figure 2 is a schematic cross-sectional view of a blower according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a main body according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a first positioning element according to an embodiment of the present application;

fig. 5 is a schematic structural view of a second positioning element according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a first connecting element according to an embodiment of the present application;

FIG. 7 is a schematic cross-sectional view of a tuyere according to an embodiment of the present application;

figure 8 is a schematic cross-sectional view of a blower according to an embodiment of the present application;

figure 9 is a schematic electrical diagram of a blower according to an embodiment of the present application;

figure 10 is a schematic bottom view of a blower according to an embodiment of the present application;

figure 11 is a schematic front view of a blower according to an embodiment of the present application;

figure 12 is a schematic elevational view of a blower according to an embodiment of the present application in another condition;

figure 13 is a schematic view of the internal structure of a prior art hair dryer;

figure 14a is a schematic cross-sectional view of a blower body according to an embodiment of the present application;

figure 14b is a three-dimensional schematic view of a blower body according to one embodiment of the present application;

figure 15 is a schematic view of a heating assembly in a hair dryer according to an embodiment of the present application;

figure 16 is a schematic view of a blower incorporating a flow directing structure on a fan assembly according to one embodiment of the present application;

figure 17 is a schematic cross-sectional view of a blower according to an embodiment of the present application;

figure 18 is an exploded view of an assembled muffler assembly in a hair dryer provided in accordance with an embodiment of the present application;

figure 19 is a side view of a blower provided in accordance with an embodiment of the present application;

figure 20 is a rear view of a blower as provided by an embodiment of the present application;

figure 21 is an isometric view of a blower according to an embodiment of the present application;

FIG. 22 is an exploded view of the assembly of the exposed components and air intake grille of a blower incorporating the teachings of one embodiment of the present disclosure;

figure 23 is a schematic view of the internal structure of a hair dryer according to an embodiment of the present application;

FIG. 24 is an enlarged partial schematic view of FIG. 23;

figure 25 is a schematic diagram of a blower according to an embodiment of the present application;

FIG. 26 is a cross-sectional view of a body according to an embodiment of the present application;

FIG. 27 is an enlarged schematic view at A of FIG. 26;

figure 28 is an exploded view of a blower according to one embodiment of the present application;

fig. 29 is a schematic structural view of a front surface of a light guide provided in an embodiment of the present application;

fig. 30 is a schematic view of a back structure of a light guide according to an embodiment of the present application

Figure 31 is a schematic view of the internal structure of the handle of a hair dryer according to an embodiment of the present application;

figure 32 is a schematic diagram of the control of a blower according to an embodiment of the present application;

figure 33 is an exploded view of a blower according to one embodiment of the present application;

FIG. 34 is a schematic plan view of a front cover plate according to an embodiment of the present application;

fig. 35 is a schematic perspective view of a front cover plate according to an embodiment of the present application;

fig. 36 is a schematic structural view of the front cover plate and the air inlet grille after alignment according to an embodiment of the present application;

FIG. 37 is an exploded view of an exposed component according to an embodiment of the present application;

fig. 38 is a schematic structural view of an air inlet grille according to another embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

In some of the flows described in the specification, claims, and above-described figures of the present application, a number of operations are included that occur in a particular order, which operations may be performed out of order or in parallel as they occur herein. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel. It should be noted that, the descriptions of "first", "second", etc. in this document are used for distinguishing different messages, devices, modules, etc., and do not represent a sequential order, nor limit the types of "first" and "second" to be different.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the prior art, a nozzle of a hair dryer is generally directly fixed on a hair dryer body, or the nozzle and the hair dryer body are connected through a buckle. And under the condition of fixed connection, the air nozzles with different functions cannot be replaced. In the case of a snap connection, the use is cumbersome and requires alignment with the position of the locking part of the snap to achieve locking. Moreover, the locking part of the buckle is easy to wear, so that the situation of improper assembly and the like occurs, the fixing effect is worse and worse, and the locking effect is not ideal.

To solve the above problems, the present application provides an air blower and a detachable member, which make the detachment process of the detachable member very convenient and fast and the installation process accurate.

Fig. 1 is a schematic sectional exploded view of a blower according to an embodiment of the present application, and fig. 2 is a schematic sectional view of a blower according to an embodiment of the present application, as shown in fig. 1 and 2.

In one embodiment of the present application, there is provided a hair dryer including a main body 10 and a first coupling member 13. The main body 10 includes a housing having a first air inlet 11 and a first air outlet 12. The first connecting piece 13 is arranged at the first air outlet 12, and the first connecting piece 13 is used for being magnetically connected with a detachable piece.

According to the technical scheme provided by the embodiment of the application, the main body 10 is connected with the detachable piece through the first connecting piece 13, when the detachable piece is disassembled and assembled on the main body 10, only the first connecting piece 13 needs to be overcome, and the magnetic force between the detachable piece is not needed. First connecting piece 13 and can dismantle and connect through magnetism between the piece for first connecting piece 13 is difficult for wearing and tearing, but first connecting piece 13 and can dismantle a position alignment back automatic connection, but make the dismouting process of dismantling the piece very convenient, quick, the installation is accurate, and the installation is effectual, but convenience of customers changes the dismantlement piece of different functions.

It should be noted that, in this embodiment, the detachable member includes, but is not limited to, a tuyere. The detachable member may be magnetically coupled with the first coupling member 13, or the detachable member may include a detachable body 20 and a second coupling member 21 provided on the detachable body 20. The second connector 21 is magnetically connected to the first connector 13. The blower may be a hand-held blower as shown in fig. 1 and 2, and may also include, but is not limited to, a self-moving cleaning robot having a blowing function, a car-mounted cleaner, an air cleaner, and the like. Accordingly, the main body 10 may be a main body of a hand-held hair dryer as shown in fig. 1 and 2, and may also include, but is not limited to, a main body of a self-moving cleaning robot, a main body of a vehicle-mounted cleaner, a main body of an air cleaner, and the like, which are not particularly limited in the embodiments of the present application. The hair dryers described above and in the following examples are illustrated by way of example as hand-held hair dryers, which should not be construed as unduly limiting the embodiments of the present application.

In an implementable embodiment of the present application, referring to fig. 1, the main body 10 in the embodiment of the present application is implemented in a manner that the main body 10 includes a housing, various functional components of the blower are disposed in a cavity of the housing, and the housing is provided with a first air inlet 11 and a first air outlet 12. The housing extends substantially in a longitudinal direction, the first air inlet 11 is located at a front end of the housing, and the first air outlet 12 is located at a rear end of the housing. The first air inlet 11 and the first air outlet 12 are located on the same horizontal plane, so that the loss on the air flow path can be reduced. The components disposed within the housing include, but are not limited to, a controller assembly and a heating assembly 50, a fan assembly 60, etc. connected to the controller assembly. Relative to 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 blower assembly 60 includes a motor for driving the fan and a fan for generating negative pressure by rotation, and is configured to generate negative pressure to suck air into the main body 10 from the first air inlet 11 and blow out the air from the first air outlet 12 after being heated by the heating assembly 50. The body 10 further includes a handle 40, and a user can hold the hair dryer to blow air through the handle 40, and the handle 40 is provided with a control button connected to the controller assembly, so that the control button can be used to control the hair dryer to perform different functions, for example, control the hair dryer to blow out different amounts of air. A battery assembly is also disposed within the handle 40 and is connected to the controller assembly, the battery assembly being configured to provide power to the other components, or a power cord of the blower passing through the handle 40 and connected to the controller assembly, the power cord being connected to an external power source to provide power to the other components. In this embodiment, it is achievable that the handle 40 extends in a direction perpendicular to the direction of extension of the housing. And one end of the handle 40 is connected to a middle position between the front and rear ends of the housing such that the entire body 10 has a T-shaped structure.

Referring to fig. 1, arrows in fig. 1 indicate a flow path of air flow of a blower, when the blower is in operation, the air flow is sucked from a first air inlet 11, passes through a fan assembly 60, a heating assembly 50 and the like, passes through a first air outlet 12 of a main body 10, and is discharged through a detachable member.

In the embodiment of the present application, the first connecting member 13 includes, but is not limited to, a magnet, an iron plate, or other members made of a magnetically conductive material. When the first connecting member 13 is a magnet, the detachable member may be made of a ferrous material, or the second connecting member 21 of the detachable body 20 includes, but is not limited to, a magnet, a piece of iron, or other members made of a magnetically conductive material. When the first connecting member 13 is a piece of iron or other member made of a magnetically permeable material, the second connecting member 21 is a magnet.

Further, in order to facilitate the user to freely adjust the air outlet angle of the detachable member, in the embodiment of the present application, the shape of the first connecting member 13 may be set to be an annular structure, and after the detachable member is connected to the first connecting member 13, the detachable member may rotate freely along the plane where the first connecting member 13 is located, so as to adjust the air outlet angle of the detachable member.

Referring to fig. 3, in an implementable embodiment of the present application, the first outlet mouth 12 is an annular structure, and the first connecting member 13 is disposed radially inside the annular structure. The first air outlet of the annular structure can enable the blowing range of the air outlet to be larger, and therefore the blowing effect of the air outlet is improved. The first connecting piece 13 is arranged on the radial inner side of the annular structure, so that the air outlet of the first air outlet 12 is not influenced when the first connecting piece 13 is magnetically connected with the detachable piece.

To better achieve the fixation of the first attachment member 13, in an implementable embodiment of the present application, see fig. 3, the hair dryer further comprises a positioning structure 30. The positioning structure 30 is located at a 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. A gap is formed between the positioning structure 30 and the housing, and the gap forms the first air outlet 12 of the annular structure. The first connecting member 13 is connected and fixed to the positioning structure 30. In a practical manner, the positioning structure 30, the connecting rib 31 and the housing are integrally formed, the positioning structure 30 has a recess recessed towards the inside of the housing, and the first connecting member 13 is disposed in the recess. The concave part is located at the radial inner side of the first air outlet 12 of the annular structure, and the first air outlet 12 surrounds the periphery of the positioning structure 30. The first connector 13 is located in the recess, and the bottom of the recess is used for connecting the first connector 13. The detachable member is insertable into the recess and is magnetically connected to the first connector 13 by the second connector 21.

With continued reference to fig. 3, in order to better fix the first connecting member 13, a mating structure connected to the first connecting member 13 is disposed in the recessed portion. The first connector 13 is located in the recess and is fixed to the mating structure. In the embodiment of the present application, it is an achievable manner that the adapting structure may be a carrying platform, and the first connecting member 13 is fixedly connected to the carrying platform. In another realizable manner, the matching structure is a first step structure 3221, and in order to further facilitate the installation of the first connecting element 13 and to define the position of the first connecting element 13, the first connecting element 13 is provided with a second step structure 131 used in cooperation with the first step structure 3221. The first step structure 3221 is clamped with the second step structure 131. The position of the second connecting member 21 can be defined by the first step structure 3221 and the second step structure 131, and the first connecting member 13 is effectively prevented from being installed and dislocated. Meanwhile, when the installation is carried out, the installation positions of the first connecting piece 13 and the bearing platform do not need to be aligned deliberately, and the installation of the first connecting piece 13 is convenient.

With continued reference to fig. 3, one way in which the positioning structure 30 may be implemented is that the positioning structure 30 includes a first positioning member 32 and a second positioning member 33. Wherein the first positioning member 32 has the recess portion recessed toward the inside of the housing. The first positioning element 32 with a concave portion is in a bowl-shaped configuration and is located inside the first outlet 12 of the annular structure, that is, the radius of the first positioning element 32 is smaller than that of the first outlet 12. The first positioning member 32 is connected to the housing of the main body 10 through a plurality of the connection ribs 31. The second positioning element 33 is accommodated in the recess, that is, the second positioning element 33 is accommodated in the bowl-shaped structure, is connected with the first positioning element 32, and clamps and fixes the first connecting element 13 between the first positioning element 32 and the second positioning element 33. In order to enhance the connection strength of the first connecting piece 13, the first connecting piece 13 and the first positioning piece 32 can be connected in advance by means of bonding, clamping and the like, and then clamped and fixed by the second positioning piece 33.

In an achievable embodiment of the present application, see fig. 4 to 6, the bottom of the depression has a positioning portion 323. The second positioning member 33 includes a fixing plate 331 and a connecting column 332 disposed on the fixing plate 331, the connecting column 332 is connected to the positioning portion 323, and the fixing plate 331 and the first positioning member 32 form a clamping structure to clamp and fix the first connecting member 13.

For example, the recess is a mounting groove 321, the mounting groove 321 is recessed toward the interior of the housing, a groove wall of the mounting groove 321 is provided with a supporting surface 322, the supporting surface 322 may be composed of a plurality of protrusions on the groove wall, or the supporting surface 322 is a boss annularly disposed on the groove wall. One or more positioning parts 323 may be provided, and when one positioning part 323 is provided, the positioning part 323 is disposed at the center of the bottom of the mounting groove 321. When the positioning part 323 is plural, the positioning part 323 is provided at the bottom of the mounting groove 321 and is uniformly arranged around the center of the bottom of the mounting groove 321. The positioning portion 323 is provided with a screw hole, and the connecting column 332 can be connected with the positioning portion 323 through a screw.

To further facilitate the installation of the first connector 13 and to define the position of the first connector 13, referring to fig. 4 and 6, the bearing surface 322 is provided with a first step structure 3221. The first connecting member 13 is provided with a second step structure 131 matched with the first step structure 3221. The first step structure 3221 is clamped with the second step structure 131. The position of the second connecting member 21 can be defined by the first step structure 3221 and the second step structure 131, and the first connecting member 13 is effectively prevented from being installed and dislocated. Meanwhile, when the installation is carried out, the installation positions of the first connecting piece 13 and the bearing platform do not need to be aligned deliberately, and the installation of the first connecting piece 13 is convenient.

Further, the installation of the second positioning element 33 is facilitated, and referring to fig. 5, a third step structure 3311 used in cooperation with the second step structure 131 is disposed on the fixing plate 331. The third step structure 3311 is engaged with the second step structure 131, and the surface of the fixing plate 331 is flush with the surface of the first connecting part 13. The connecting position of the second positioning part 33 can be limited by the second step and the third step, so that the second positioning part 33 is effectively prevented from being installed in a staggered manner, and meanwhile, the second positioning part 33 is also convenient to install.

In order to prevent the second positioning element 33 from rotating, with reference to fig. 4 and 5, in the embodiment of the present application, the positioning portion 323 is provided with a positioning groove 3231, and a groove wall of the positioning groove 3231 is provided with a limiting notch 3232. The connecting column 332 is provided with a limiting strip 3321 matched with the limiting notch 3232. The connecting column 332 extends into the positioning groove 3231 and is connected with the positioning portion 323. The limiting strip 3321 extends into the limiting gap 3232 to prevent the second positioning element 33 from rotating in the radial direction. The limiting gaps 3232 extend along the axial direction of the mounting groove 321, the number of the limiting gaps 3232 can be one or more, and the number of the limiting strips 3321 can be the same as that of the limiting gaps 3232 or less than that of the limiting gaps 3232. When the connecting column 332 extends into the positioning groove 3231, the connecting column 332 drives the limiting strip 3321 to enter the limiting notch 3232, and under the combined action of the limiting notch 3232 and the limiting strip 3321, the connecting column 332 cannot rotate, so that the second positioning part 33 cannot rotate.

On the basis of embodiment 1, the embodiment of the present application further provides a detachable member, and the detachable member in embodiment 2 can be used with the main body 10 in embodiment 1.

Specifically, referring to fig. 1, 2 and 7, in one embodiment of the present application, a detachable member is provided, which includes 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 piece 21 is arranged at the second air inlet, and the second connecting piece 21 is used for being magnetically connected with the main body 10 so as to penetrate through the second air inlet and the first air outlet 12 of the main body.

According to the technical scheme provided by the embodiment of the application, the detachable piece comprises 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, and when the detachable member is disassembled and assembled from the main body 10, only the magnetic force between the second connecting member 21 and the main body 10 needs to be overcome, and no other operation is required. The second connecting piece 21 is connected with the main body 10 through magnetism, 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 being aligned, the dismounting process of the dismountable piece is very convenient and fast, the mounting process is accurate, the mounting effect is good, and convenience is brought to users to replace the dismountable pieces with different functions.

Further, the second air inlet is of an annular structure. The second air inlet and the first air outlet 12 are both of annular structures, so that good butt joint can be realized, and loss of air flow during flowing is reduced. With continued reference to fig. 7, one realisable way of the detachable element is that the coupling cam 22 is arranged radially inside the ring-shaped structure, said second coupling member 21 being arranged on said coupling cam 22. When the detachable member is connected to the main body 10, 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 arrows in fig. 7 indicate a flow path of the airflow that can be realized, the detachable member has a fluid channel that is communicated with the first air outlet 12, the fluid channel is distributed around the connecting protrusion 22, when the connecting protrusion 22 extends into the recess, the fluid channel is communicated with the first air outlet 12 through the second air inlet, and the airflow blown out from the first air outlet 12 enters the fluid channel through the second air inlet and then is blown out through the second air outlet.

When the first connecting piece 13 is of an annular structure, the second connecting pieces 21 are multiple and are uniformly arranged around the central axis of the connecting convex block 22; alternatively, the second connecting member 21 has a ring structure, and the second connecting member 21 has a ring structure matching the first connecting member 13. When the second connection member 21 has a ring-shaped structure, the first connection member 13 may not have a ring-shaped structure, may be plural, and may be uniformly arranged along the center of the bottom of the recess.

Further, in order to enhance the installation strength of the second connection member 21, a fixing groove 221 is formed on the connection protrusion 22, for example, the fixing groove 221 is formed on a side of the connection protrusion 22 facing the main body 10, and the second connection member 21 is fixedly connected in the fixing groove 221. The installation position of the second link 21 can be fixed by the fixing groove 221 to prevent the second link 21 from moving. The second connector 21 is further bonded or snapped in the fixing groove 221.

It should be noted that the detachable component in embodiment 2 can be used with the hair dryer in embodiment 1, and in the case that the structures are not conflicting, the technical features in embodiment 2 and those in embodiment 1 can be referred to each other, and are not described again.

On the basis of the embodiment 1 and the embodiment 2, the embodiment of the application also provides a hair dryer, the main body 10 in the embodiment 3 can be realized by the main body in the embodiment 1, the detachable part can be realized by the detachable part in the embodiment 2, and the technical characteristics in the embodiment 3 and the technical characteristics in the embodiment 1 and the embodiment 2 can be mutually referred without conflicting with each other in the structure.

Specifically, referring to fig. 1 and 2, in one embodiment of the present application, there is provided a hair dryer including a main body 10 and a detachable body 20.

The main body 10 includes a housing, the housing has a first air inlet 11 and a first air outlet 12, and a first connecting member 13 is disposed at the first air outlet 12. The detachable body 20 is provided with a second air inlet and a second air outlet, and a second connecting piece 21 is arranged at the second air inlet. The second connecting member 21 is magnetically connected to the first connecting member 13, so as to connect the detachable body 20 to the main body 10, and penetrate the second air inlet and the first air outlet 12.

According to the technical scheme provided by the embodiment of the application, the main body 10 is magnetically connected with the second connecting piece 21 on the detachable body 20 through the first connecting piece 13, and when the detachable body 20 is detached from the main body 10, only the magnetic force between the first connecting piece 13 and the second connecting piece 21 needs to be overcome, so that other operations are not needed. Connect through magnetism between first connecting piece 13 and the second connecting piece 21 for first connecting piece 13 and the difficult wearing and tearing of second connecting piece 21, but first connecting piece 13 and second connecting piece 21 position alignment back automatic connection, make the dismouting process of the detachable body 20 very convenient, quick, the installation is accurate, and the installation is effectual, but convenience of customers changes the detachable piece of different functions.

In an implementable embodiment of the present application, referring to fig. 1, the main body 10 in the embodiment of the present application is implemented in a manner that the main body 10 includes a housing, various functional components of the blower are disposed in a cavity of the housing, and the housing is provided with a first air inlet 11 and a first air outlet 12. The housing extends substantially in a longitudinal direction, the first air inlet 11 is located at a front end of the housing, and the first air outlet 12 is located at a rear end of the housing. The first air inlet 11 and the first air outlet 12 are located on the same horizontal plane, so that the loss on the air flow path can be reduced.

The components disposed within the housing include, but are not limited to, a controller assembly and a heating assembly 50, a fan assembly 60, etc. connected to the controller assembly. Relative to 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 blower assembly 60 includes a motor for driving the fan and a fan for generating negative pressure by rotation, and is configured to generate negative pressure to suck air into the main body 10 from the first air inlet 11 and blow out the air from the first air outlet 12 after being heated by the heating assembly 50.

The body 10 further includes a handle 40, and a user can hold the hair dryer to blow air through the handle 40, and the handle 40 is provided with a control button connected to the controller assembly, so that the control button can be used to control the hair dryer to perform different functions, for example, control the hair dryer to blow out different amounts of air. A battery assembly is also disposed within the handle 40 and is connected to the controller assembly, the battery assembly being configured to provide power to the other components, or a power cord of the blower passing through the handle 40 and connected to the controller assembly, the power cord being connected to an external power source to provide power to the other components. In this embodiment, it is achievable that the handle 40 extends in a direction perpendicular to the direction of extension of the housing. And one end of the handle 40 is connected to a middle position between the front and rear ends of the housing such that the entire body 10 has a T-shaped structure.

Further, referring to fig. 7, the second air inlet is of an annular structure. The second air inlet and the first air outlet 13 are both of annular structures, so that good butt joint can be realized, and loss of air flow during flowing is reduced. In a practical manner, the coupling projections 22 are arranged radially inside the ring-shaped structure, and the second coupling member 21 is arranged on the coupling projections 22. When the detachable body 20 is connected to the main body 10, 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.

Fig. 7 shows an arrow indicating a flow path of an airflow that can be realized, a fluid channel is disposed on the detachable body 20 and is communicated with the first air outlet 12, the fluid channel is distributed around the connecting protrusion 22, when the connecting protrusion 22 extends into the recess, the fluid channel is communicated with the first air outlet 12 through the second air inlet, and the airflow blown out from the first air outlet 12 enters the fluid channel through the second air inlet and is blown out through the second air outlet.

It should be noted that, in the case that the structures are not conflicting, the technical features in embodiment 3 and the technical features in embodiments 1 and 2 may be referred to each other, and are not described again.

The technical solution adopted in the present application is described below with reference to specific application scenarios to help understanding. In the following application scenario, the hair dryer is taken as a handheld hair dryer, the detachable piece is a nozzle, the first connecting piece is a magnet, and the second connecting piece is an iron sheet.

Application scenario 1

When the user needs to detach the air nozzle on the main body, acting force is applied to the air nozzle, the air nozzle is pulled along the extending direction blown out by the air flow, and therefore the magnet arranged on the main body is separated from the iron sheet arranged on the air nozzle, and the air nozzle is separated from the main body.

When the tuyere is installed, the tuyere is close to the main body, so that the position of the magnet and the position of the iron sheet correspond, the magnet and the iron sheet automatically adsorb, and the installation of the tuyere is completed.

Application scenario 2

When the user needs to detach the air nozzle on the hair dryer, acting force is applied to the air nozzle, and the air nozzle is rotated, so that the position of the magnet and the iron sheet is staggered, and the magnetic force disappears. The tuyere is pulled in the extending direction of the air flow blowing out so that the tuyere is separated from the main body.

When the tuyere is installed, the tuyere is stretched into the installation groove and is rotated after a certain distance is stretched into the installation groove, so that after the magnet and the iron sheet correspond to each other, the magnet and the iron sheet are automatically adsorbed, and the installation of the tuyere is completed.

Application scenario 3

At least one of the magnet and the iron sheet is annular, and the air nozzle can rotate freely.

When the tuyere is installed, the tuyere is close to the main body, so that the distance between the magnet and the iron sheet is small enough, the magnet and the iron sheet are automatically adsorbed, and the installation of the tuyere is completed.

The current hair-dryer is except that the inconvenient scheduling problem of tuyere dismouting process that exists above mentioning, and the inventor finds that current hair-dryer is when the wind speed wind temperature of adjusting the air-out, generally adopts the mode of button, and manual setting wind speed and temperature gear. No matter whether there is the use object in the first air outlet place ahead of hair-dryer, no matter the distance of using the object apart from the hair-dryer is far and near, if do not have manual operation, can only adopt a fixed wind temperature wind speed gear operation. When the user feels uncomfortable, the blower can be removed, or other gears can be manually switched until a proper wind temperature and wind speed gear is found. The use is very inconvenient, and the user experience is not good.

The inventor thinks that the current hair dryer product lacks the technology of identifying the distance of the used object, and cannot adjust the wind temperature and the wind speed of the outlet air according to the distance between the hair dryer and the user, so the distance can be passively and manually adjusted or the gear can be switched only depending on the independent consciousness of the user.

To above-mentioned problem, this application still provides following each embodiment, can be according to distance sensor's distance information, the operating condition of control heating element and fan subassembly to adjust wind temperature wind speed, effectively improved the intellectuality of hair-dryer, effectively realize simple and convenient to the protection of human body.

For example, fig. 8 is a schematic cross-sectional structure diagram of a hair dryer provided in an embodiment of the present application, fig. 9 is a schematic circuit diagram of the hair dryer provided in the embodiment of the present application, and fig. 10 is a schematic bottom structure diagram of the hair dryer provided in the embodiment of the present application, as shown in fig. 8 to 10.

In one embodiment of the present application, there is provided a hair dryer comprising: a body 10 and a distance sensor 200. The main body 10 has a first inlet 11 and a first outlet 12. As shown in fig. 9, a main control board 213, and a heating assembly 50 and a fan assembly 60 electrically connected to the main control board 213 are disposed in the main body 10. The distance sensor 200 is disposed at an 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 a distance signal detected by the distance sensor 200 and controls working states of the heating assembly 50 and the fan assembly 60.

Here, it should be noted that: the controller assembly electrically connected to the fan assembly 60 and the heating assembly 50 may include the main control board 213.

The technical scheme that this application embodiment provided, distance sensor 200 detectable main part 10's first air outlet 12 and surveyed the distance between the human body, main control board 213 can be according to distance sensor 200's distance signal control heating element 50 and fan subassembly 60's operating condition, has effectively improved the intellectuality of hair-dryer, effectively realizes the protection to the human body, and is simple and convenient.

In an implementable embodiment of the present application, referring to fig. 8, the main body 10 in the embodiment of the present application is implemented in a manner that the main body 10 includes a housing, various functional components of the blower are disposed in a cavity of the housing, and the housing is provided with a first air inlet 11 and a first air outlet 12. The components disposed inside the housing include, but are not limited to, a main control board 213, and a heating assembly 50, a fan assembly 60, etc. connected to the main control board 213. The blower assembly 60 includes a motor for driving the fan and a fan for generating negative pressure by rotation, and the blower assembly 60 is configured to generate negative pressure to suck air into the main body 10 from the first air inlet 11 and blow out from the first air outlet 12 after passing through the heating assembly 50. The body 10 is further provided with a handle 40, and a user can hold the blower to blow air through the handle 40.

In the embodiment of the present application, in order to control the heating assembly 50 and the fan assembly 60 by the main control board 213, a control circuit for controlling the operating states of the heating assembly 50 and the fan assembly 60 is disposed on the main control board 213. Through the control circuit, the main control board 213 can control the fan assembly 60 in various working states, for example, start and stop of the fan assembly 60 are controlled, the magnitude of the wind force blown out by the fan assembly 60 is realized by controlling different rotating speeds, and the states of strong wind, breeze and the like blown out by the fan assembly 60 are controlled. Of course, the control of the wind power is not limited to strong wind and breeze, and the air outlet of various wind powers can be controlled according to different requirements. The main control board 213 may also control the heating element 50 in various operating states, for example, start and stop of the heating element 50 are controlled, and the temperature of the heating element 50 is controlled by controlling the current of the heating element 50, so as to change the outlet air into hot air, micro hot air, or the like.

In the embodiment of the present application, the distance sensor 200 is configured to detect a distance between the first air outlet 12 and a detected human body and send the distance signal to the main control board 213. The distance sensor 200 includes, but is not limited to, one or more of an infrared ranging sensor, a radar ranging sensor, or a laser ranging sensor. The detection distance accuracy of the distance sensor 200 is 1mm, and the maximum detection range is 1 m. Of course, the detection distance accuracy and the maximum detection range of the distance sensor 200 may be adjusted according to different detection requirements, and are not limited herein. The triangular areas in fig. 10 represent the detection ranges of the distance sensor 200, which are only schematic in fig. 10 and do not constitute an undue limitation of the embodiments of the present application.

The main control board 213 can control the working states 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 human body to be detected is decreased, the main control board 213 may control the wind speed of the fan assembly 60 to decrease, and the temperature of the heating assembly 50 to decrease, so that the wind blown out from the first air outlet 12 is a slightly hot wind, and the user does not worry that the hair is scalded when the first air outlet 12 is too close to the hair when using the hair dryer. For another example, when the distance sensor 200 detects that the distance between the first air outlet 12 and the human body to be detected becomes longer, the main control board 213 may control the wind speed of the fan assembly 60 to become larger, and the temperature of the heating assembly 50 to become larger, so that the wind blown out from the first air outlet 12 is a strong hot wind, and the user does not worry that the temperature and the wind speed of the first air outlet 12 far from the hair are too low and the hair-blowing effect is not good when using the hair dryer. The blower can automatically adjust the air temperature and the air speed according to the distance detection, and the user experience is greatly improved.

Specifically, in this embodiment of the application, the main control board 213 may 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 human body position are constant, thereby ensuring that the user is always kept within a reasonable temperature and air output range. For example, when the distance between the measured human body position and the first air outlet 12 is relatively long, the power of the heating element 50 is increased, and when the distance between the measured human body position and the first air outlet 12 is relatively short, the power of the heating element 50 is decreased, so that the temperature of the measured human body position is constant. Likewise, the main control board 213 adjusts the power of the fan assembly 60 according to the distance signal, so that the air output of the measured human body position is constant.

It should be noted that the process of detecting the distance between the first air outlet 12 and the human body to be detected by the distance sensor 200 may be real-time, and the main control board 213 controls the working state of the fan assembly 60 and the heating assembly 50 to be real-time, for example, when the distance between the first air outlet 12 and the human body to be detected by the distance sensor 200 gradually increases or decreases, the main control board 213 may control the wind speed of the fan assembly 60 to gradually increase or decrease, and the temperature of the heating assembly 50 to gradually increase or decrease.

The process of detecting the distance between the first air outlet 12 and the human body to be detected by the distance sensor 200 may be real-time, and the main control board 213 controls the operating states of the fan assembly 60 and the heating assembly 50 in stages, for example, when the distance sensor 200 detects that the distance between the first air outlet 12 and the human body to be detected reaches a predetermined value, the main control board 213 may control the fan assembly 60 and the heating assembly 50 to change states. For example, when the blower is 10cm away from the human body, the main control board 213 can control the blower assembly 60 to blow out breeze, and the temperature of the heating assembly 50 is 10 ℃. When the blower is 20cm away from the human body, the main control board 213 can control the fan assembly 60 to blow out strong wind, and the temperature of the heating assembly 50 is 15 ℃. Of course, the predetermined value may be adjusted according to different detection requirements, and is not limited herein.

When people use the hair dryer in daily life, the following special situations often occur, for example, the first air outlet 12 of the hair dryer is too close to the human body, and at this time, if the hair dryer still continues to operate, human body injuries such as scalding are easily caused. For another example, the first air outlet 12 of the hair dryer is too far away from the human body, and at this time, if the hair dryer still continues to operate, the hair dryer cannot blow to the human body, and the hair dryer is in an idle state, which causes resource waste. For the above two cases, the processing manner in the embodiment of the present application includes, but is not limited to, the following manners:

the main control board 213 stores a first distance threshold and a second distance threshold in advance. The first distance threshold is used as the minimum safe distance of the hair dryer, when the main control board 213 receives the distance signal from the distance sensor 200, the distance signal represents the distance between the hair dryer and the human body to be tested, the distance signal is compared with the first distance threshold, and when the distance between the hair dryer and the human body to be tested 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. When the distance between the blower and the measured human body is equal to the first distance threshold, the main control board 213 may control the blower assembly 60 and the heating assembly 50 to operate in the minimum operating state. For example, the fan assembly 60 is adjusted from a high wind condition to a low wind condition. When the distance between the blower and the measured human body is smaller than the first distance threshold, it indicates that the human body is not within the minimum safe distance, and if the blower continues to work, the human body is easily damaged, and at this time, the main control board 213 may control the blower assembly 60 and the heating assembly 50 to stop operating. When the distance between the blower and the measured human body is again equal to or greater than the first distance threshold value after the operation is stopped, the main control board 213 may control the blower assembly 60 and the heating assembly 50 to operate again. In the embodiment of the present application, the first preset distance is 10cm, and of course, the first preset distance may be adjusted according to different detection requirements, which is not specifically limited herein.

The second distance threshold is used as the maximum safe distance of the hair dryer, when the main control board 213 receives the distance signal from the distance sensor 200, the distance signal is compared with the second distance threshold, and when the distance between the hair dryer and the detected human body is less than or equal to 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 may control the blower assembly 60 and the heating assembly 50 to operate in the maximum working state. When the distance between the blower and the measured human body is greater than the second distance threshold, it indicates that the human body is not within the maximum safe distance, and if the blower continues to work, the blower cannot blow the human body, and the blower is in an idle state, at this time, the main control board 213 may control the blower assembly 60 and the heating assembly 50 to stop operating, or adjust to the minimum operating state to operate. When the distance between the blower and the measured human body is recovered to be less than or equal to the second distance threshold value again when the operation is stopped, the main control board 213 may control the blower assembly 60 and the heating assembly 50 to operate again. In the embodiment of the present application, the second preset distance is 1m, and of course, the second preset distance may be adjusted according to different detection requirements, which is not specifically limited herein.

In this application embodiment, through prestore first distance threshold value and second distance threshold value in main control panel 213 for the wind temperature wind speed of the more intelligent adjustment air-out of hair-dryer can effectively solve following problem: for example, when a conventional hair dryer is first turned on, the hair dryer can only be operated at the current gear, and when the hair dryer is blowing, the hair dryer can also be operated at high wind and high heat. The hair dryer in the embodiment of the present application may determine whether there is a use object when the hair dryer is turned on, and if there is no use object, the main control board 213 may control the fan assembly 60 and the heating assembly 50 to stop operating, or adjust to the minimum operating state to operate.

For another example, if the first outlet 12 of the blower is too close to the user, the main control board 213 can control the fan assembly 60 and the heating assembly 50 to reduce the wind speed and the wind temperature so as to avoid scalding the scalp or hair of the user. If the distance is smaller than the first distance threshold, the main control board 213 may control the fan assembly 60 and the heating assembly 50 to stop operating. If the first outlet 12 of the hair dryer is too far away from the user, the main control board 213 can control the fan assembly 60 and the heating assembly 50 to increase the wind speed and temperature, thereby increasing the hair drying effect.

Further, in order to better identify the distance signal detected by the distance sensor 200, referring to fig. 9, in the embodiment of the present application, the distance sensor 200 is connected to the main control board 213 through a distance identification circuit 16. The distance recognition circuit 16 receives the distance signal from the distance sensor 200 and transmits the distance signal to the main control board 213, and the main control board 213 controls the operating states of the fan assembly 60 and the heating assembly 50 according to the distance information, so as to adjust the air temperature and the air speed of the air outlet of the blower. In the embodiment of the present application, the distance recognition circuit 16 includes, but is not limited to, an a/D conversion circuit (analog-to-digital converter), and the distance sensor 200 detects the distance signal and transmits the distance signal 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 determines the distance information according to the digital information and controls the operating states of the fan assembly 60 and the heating assembly 50 according to the distance information. It should be noted that the distance recognition circuit 16 may be provided as a separate component or may be integrated on the main control board 213.

With continued reference to figure 8, in the embodiment of the present application, the hair dryer further comprises a nozzle 230, and the nozzle 230 is located at the active first air outlet 12 and is connected to the main body 10. When the hair dryer is used, the main body 10 of the hair dryer is usually used in cooperation with the air nozzle 230, and different air outlet effects are achieved by replacing the air nozzles 230 with different functions. One way of realizing the air nozzle is that the air nozzle 230 includes an air outlet 231 and a connecting projection 22 disposed on the air outlet 231, and the connecting projection 22 is rotatably connected to the main body 10. The tuyere 230 may be rotatable with respect to the main body 10, thereby changing an angle of the wind.

Referring to fig. 10 to 12, one way to achieve the air outlet 231 is a flat mouth structure. When the air outlet 231 of the flat structure rotates, the end portion may shield the distance sensor 200, and the shielded distance sensor 200 cannot work normally, or the detected distance is always smaller than the first distance threshold, so that the main control board 213 controls the fan assembly 60 and the heating assembly 50 to stop operating.

To avoid the wind nozzle 230 from obstructing the distance sensor 200, continuing with fig. 10-12, in an implementable embodiment of the present application, the distance sensor 200 is at least two. Each of the distance sensors 200 is independently electrically connected to the main control board 213. The connection line between every two distance sensors 200 does not pass through the center point of the first air outlet 12. Each distance sensor 200 can independently detect, that is, as long as one sensor detects a detected human body, the main control board 213 automatically adjusts the wind speed and the 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 at two sides of the air nozzle 230, a connecting line between the two distance sensors 200 does not pass through the central point of the first air outlet 12, and when the air nozzle 230 rotates, the two distance sensors 200 cannot be simultaneously shielded no matter which angle the air outlet 231 rotates to. That is, no matter how the tuyere 230 rotates, one distance sensor 200 is not shielded all the time, and at least one distance sensor 200 is in a normal working state, thereby ensuring that the hair dryer can be used normally. In fig. 11, the case where the tuyere 230 does not cover any one of the distance sensors 200 is shown, and both of the distance sensors 200 can normally detect. Referring to fig. 12, fig. 12 shows a case where the air outlet 231 of the tuyere 230 is rotated by a certain angle to shield one of the distance sensors 200, but the other sensor is not shielded and normal detection can be continued.

Further, in the embodiment of the present application, the distance sensor 200 includes a transmitting region and a receiving region. A line connecting the emitting area of each of the distance sensors 200 with the emitting area and the receiving area of another one of the distance sensors 200 does not pass through the center point of the first outlet 12. A line connecting the receiving area of each distance sensor 200 and the receiving area of another distance sensor 200 does not pass through the center point of the first outlet 12. No matter how the tuyere 230 rotates, the tuyere 230 cannot simultaneously shield the transmitting area and the receiving area of the two sensors, namely, one sensor is always not shielded, and at least one sensor is in a normal working state, so that the normal use of the hair dryer is ensured.

In the above embodiment, when there are at least two distance sensors 200 normally detecting, the main control board 213 receives two distance signals. Since the user may shake the hair dryer back and forth while the hair dryer is in use, different blowing angles may occur to the hair dryer, resulting in inconsistency of the distance signals detected by the at least two distance sensors 200. If the main control board 213 controls the working states of the fan assembly 60 and the heating assembly 50 according to the two distance signals, the wind speed and the wind temperature of the outlet wind of the blower may be disordered, and the blowing is high.

To avoid this, in an embodiment of the present application, a correction circuit is disposed 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 states of the fan assembly 60 and the heating assembly 50 according to the corrected distance signal. The manner in which the correction circuit corrects the range signal includes, but is not limited to, the following:

in one implementation, the correction circuit randomly selects one of the at least two distance signals to transmit to the main control board 213.

In another implementation manner, the correction circuit selects a distance signal with a shorter distance between the first air outlet 12 and the measured human body from the at least two distance signals to transmit to the main control board 213.

In another implementation, the correction circuit calculates an average distance of the at least two distance signals and transmits the average distance to the main control board 213.

It should be noted that the correction circuit may be provided as a separate component or may be integrated on the main control board 213.

In the embodiment of the present application, the distance sensor 200 is provided with a heat insulating layer on the outer periphery thereof. The heat insulation layer is arranged at the periphery of the distance sensor 200 and is used for protecting the distance sensor 200 from the temperature of the first air outlet 12. The shape of the thermal insulation layer may be arranged to match the shape of the distance sensor 200. It should be noted that the shape and material of the thermal insulation layer may be set according to different thermal insulation requirements, and the embodiment of the present application is not particularly limited.

Further, in order to improve the installation strength of the distance sensor 200, in the embodiment of the present application, an installation hole is disposed on an end portion of the first air outlet 12. The distance sensor 200 is mounted in the mounting hole. The thermal insulation layer is disposed between the mounting hole and the distance sensor 200. The mounting hole can limit the mounting position of the distance sensor 200 on one hand, and the positioning and mounting of the distance sensor 200 are facilitated; on the other hand, the distance sensor 200 is positioned in the mounting hole, so that the distance sensor 200 is protected to a certain extent, and the distance sensor 200 is prevented from being damaged by foreign objects. The insulating layer sets up in the mounting hole, prevents that the temperature from passing the mounting hole and influencing distance sensor 200.

With continued reference to fig. 10-12, the 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 with the main control board 213. The control unit 218 may be used to control the blower to perform various functions, such as controlling the start and stop of the fan assembly 60 and the heating assembly 50, controlling the fan assembly 60 to blow different amounts of air, etc. The main control board may also control the blower assembly 60 and the heating assembly 50 to stop operating through the control unit 218 when the distance sensor 200 detects that the distance between the blower and the human body is smaller than the first distance threshold or detects that the distance between the blower and the human body is larger than the second distance threshold. Further, a battery assembly is further disposed in the handle 40, the battery assembly is connected to the main control board 213, and the battery assembly is configured to provide power for the main control board 213, the fan assembly 60, and the heating assembly 50, or a power cord of the blower passes through the handle 40 and is connected to the main control board 213, and the power cord is connected to an external power source to provide power for the main control board 213, the fan assembly 60, and the heating assembly 50. In a specific implementation, the control unit 218 may include: at least one control switch or touch control, etc. When a plurality of control switches or touch controls are provided, each control switch or touch control can be respectively controlled corresponding to different functions, such as a wind power control function, a cooling and heating control function and the like.

Further, a temperature sensor is arranged in the main body 10, and the temperature sensor is electrically connected with the main control board 213, so that the main control board 213 receives a temperature signal detected by the temperature sensor and controls the working states of the heating assembly 50 and the fan assembly 60. The temperature of the heating assembly 50 can be detected in real time by the temperature sensor, and the temperature signal is transmitted to the main control board 213. When the temperature exceeds the temperature threshold, the main control board 213 controls the heating assembly 50 to turn off or reduce power, controls the fan assembly 60 to increase wind power or turn off, and the like. The temperature threshold may be set according to different temperature requirements, and is not specifically limited in the embodiment of the present application.

The technical solution adopted in the present application is described below with reference to specific application scenarios to help understanding. In the following application scenario, the hair dryer is a handheld hair dryer, and the distance sensor is two.

Application scenario 4

When a user needs to use the hair drier, the distance sensor can detect the distance between the first air outlet of the hair drier and a detected human body in real time.

When distance sensor detected that the distance between first air outlet and the surveyed human body became closely, the wind speed of the steerable fan subassembly of main control board diminishes, and heating element's temperature diminishes to make the wind that first air outlet blew out be little hot-blast, the user need not worry that first air outlet can scald the hair too closely from the hair when using the hair-dryer.

When distance sensor detects first air outlet and surveyed the distance between the human body and become far away, the wind speed grow of the steerable fan subassembly of main control board, heating element's temperature grow to make the wind that first air outlet blew off be strong hot-blast, the user need not worry when using the hair-dryer that first air outlet is too far away from hair temperature and wind speed can be too low, blows the problem that the hair effect is not good.

Application scenario 5

When the distance sensor detects that the distance between the blower and the detected human body is larger than or equal to the first distance threshold value, the blower can continue to work, and the fan assembly is in a breeze state.

When the distance between the blower and the detected human body is smaller than the first distance threshold value, the fact that the human body is not in the minimum safe distance is indicated, and at the moment, the main control board can control the fan assembly and the heating assembly to stop running.

Application scenario 6

When the distance sensor detects that the distance between the blower and the detected human body is smaller than or equal to the second distance threshold value, the blower can continue to work, and the blower can adjust the air speed and the air temperature of the air outlet according to the distance from the blower to the human body.

When the distance between the blower and the detected human body is larger than the second distance threshold value, at the moment, the main control board can control the fan assembly and the heating assembly to stop running or regulate the fan assembly and the heating assembly to run in the minimum running state.

In addition, most of existing hair dryers rely on heating wires for heating, the temperature of the heating wires is as high as about five hundred degrees, and the heating wires can only be in direct contact with mica supporting sheets. Referring to fig. 13, the heating wire of the hair dryer product is wound on a mica sheet support frame 101, and the mica sheet support frame 101 is fixed on a cylinder 102. The end of the cylinder 102 facing the fan assembly 60 is the windward side 100, and the airflow from the fan assembly 60 strikes the windward side 100, which is very likely to generate noise due to turbulence. To solve the problems in the prior art, the present application proposes the following embodiments to reduce noise.

Fig. 14a and 14b are schematic diagrams of a blower according to an embodiment of the present application. Referring to fig. 14a, 14b, the hair dryer comprises: a main body 10, a fan assembly 60, and a heating assembly 50. Wherein the body 10 has an air flow passage; a fan assembly 60 for outputting power for drawing air into the airflow path; the heating assembly 50 is used to heat the airflow in the airflow channel. The airflow channel includes a first flow-through section 203 and a second flow-through section 201 which are changed in a step manner, and a flow-guiding section 202 is disposed between the first flow-through section 203 and the second flow-through section 201, so that airflow flows from the first flow-through section 203 to the second flow-through section 201 along a flow-guiding path provided by the flow-guiding section 202.

Taking the blower configuration shown in figure 14a as an example, the arrows indicated at 204 schematically represent the airflow direction. In the figure, the position of the air outlet of the fan assembly is shown, the cross section of the position is small, and the air flow speed is high. And the second circulation section is provided with a heating assembly, and the area of the cross section of the second circulation section is larger than that of the first circulation section provided with a fan assembly. And the third part is a first air outlet 12 of an airflow channel. After entering the first circulation section 203 from the first inlet 11 of the airflow channel and accelerating, the airflow enters the second circulation section 201 to be heated, and then is discharged from the first outlet 12. In this embodiment, a flow guide section 202 is disposed between the first flow-through section 203 and the second flow-through section 201 to guide the airflow from the fan assembly 60 to enter the second flow-through section 201 along the oblique direction shown in fig. 14 a. Compared with the structure shown in fig. 13, the technical solution provided by this embodiment has no windward side where the airflow strikes from the front, so that the airflow flow path is smoother, and turbulence generated by the airflow striking from the plane is reduced, which is helpful to reduce noise; meanwhile, the air quantity can be increased.

In the embodiment of the present application, the first flow-through section and the second flow-through section may be any flow-through section in the airflow channel, and are not limited to the two flow-through

sections

203 and 201 corresponding to the fan assembly 60 and the heating assembly 50 shown in fig. 14a and 14b, respectively; as long as two adjacent circulation sections have step-like changes, the air flow can strike the position of the step surface at the joint of the two circulation sections at the front, and a drainage section can be arranged between the two circulation sections so as to reduce the turbulence generated by the air flow striking plane.

Continuing with the example of the structure shown in fig. 14a and 14b, this embodiment provides a hair dryer, wherein: 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; a space between the outer wall 150 of the heating element 50 and the inner wall 17 of the main body 10 is the second flow-through section 201.

Specifically, referring to fig. 14a and 14b, the cross-sectional area of the inner wall 17 of the main body 10 at the first flow-through section 203 is smaller than the cross-sectional area of the inner wall 17 of the main body 10 at the second flow-through section 201; the cross-sectional area of the outer wall 140 of the fan assembly 60 is smaller than the cross-sectional area of the outer wall 150 of the heating assembly 50; the fan assembly 60 has a first axis parallel to the direction of airflow in the first flow-through section 203; the heating assembly 50 has a second axis parallel to the direction of gas flow in the second flow-through section 201; the first axis coincides with the second axis. As shown in fig. 14a, the first axis and the second axis coincide with the axis of the body 10.

In this embodiment, the flow-directing section 202 may be formed by adding additional components between the fan assembly 60 and the heating assembly 50; or by providing a flow directing structure on the heating assembly 50, or by providing a flow directing structure on the fan assembly 60, etc. The details will be described below separately.

The mode that sets up drainage structure on the heating element forms the scheme of drainage section: referring to fig. 14a, 14b and 15, the end of the heating assembly 50 near the fan assembly 60 is provided with the flow guiding structure 152; a space between the drainage surface 1521 of the drainage structure 152 and the inner wall of the main body 10 is the drainage section 202.

More specifically, the heating assembly 50 includes a fixing member 153 and a heating member 154. The end of the fixing member 153 close to the fan assembly 60 is provided with the flow guiding structure 152; the heating part 154 surrounds the fixing member 153.

As shown in fig. 14a, 14b and fig. 15, the flow-guiding 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 truncated cone connecting the large end surface and the small end surface is the drainage surface 1521.

Further, in order to reduce the weight of the whole blower, as shown in the sectional view of fig. 14a and the three-dimensional perspective view of fig. 14b, the fixing member 153 is a cylindrical member with one end closed and the other end open; the drainage structure 152 is disposed at the closed end of the fixing member 153. Here, the closed end of the fixture 153 faces the fan assembly 60, for the purpose of avoiding air flow into the hollow interior of the barrel of the fixture 153.

Further, the heating part 154 includes: a support 1541 and a heating wire 1542. Wherein, the supporting member 1541 is disposed on an outer wall of the fixing member 153 and extends from the closed end to the open end of the fixing member 153; a heating wire 1542 wound around the supporting member 1541. Referring specifically to fig. 3, the support 1541 includes a plurality of mica sheets of different heights. Mica sheets are arranged on the outer wall of the fixing piece at intervals, the first layer of heating wires 15422 are wound on the short mica sheets, and the second layer of heating wires 15421 are wound on the high mica sheets.

The mode that sets up drainage structure on the heating element forms the scheme of drainage section: referring to the schematic view shown in fig. 16, the end of the fan assembly 60 near the heating assembly 50 is provided with the flow guiding structure 152; a space between the drainage surface 1521 of the drainage structure 152 and the inner wall 17 of the main body 10 is the drainage section 202.

In one embodiment, the fan assembly 60 includes: a motor housing 140, a motor (not shown), and a fan 141. Wherein the motor housing 140 has opposing first and second ends; the motor is accommodated in the motor housing 140, and the power output end extends out of the first end of the motor housing 140; the fan 141 is connected to a power output end of the motor to be rotated by the motor. Wherein the second end of the motor housing 140 is provided with the drainage structure 152. Further, the flow guiding surface 1521 is an inclined surface extending from the second end of the motor housing 140 to the heating assembly 50.

The scheme that the mode that sets up drainage structure between heating element and fan subassembly forms the drainage section: similar to the embodiment shown in fig. 16 described above. The flow directing structure 152 has an inclined flow directing surface 1521 directed from the air outlet side of the fan assembly 60 to the heating assembly 50. The flow directing structure 152 may be a structure within the interior cavity of the body 10 that is not connected to either of the fan assembly 60 and the heater assembly 50, and may be in contact with or have some clearance.

As shown in fig. 14a and 14b, air enters from the first air inlet 11 of the air flow channel, is accelerated by the fan assembly 60, is heated by the heating assembly 50, and then is discharged from the first air outlet 12 of the air flow channel. A large noise is generated inside the main body 10 of the hair dryer due to the rotation of the fan 141 and the high-speed air flow movement in the fan assembly 60. In particular embodiments, a silencer assembly 90 may be added to the airflow path, as shown in FIG. 17.

Specifically, the noise reduction assembly 90 may be disposed between the heating assembly 50 and the fan assembly 60. The acoustic dampening assembly 90 includes a porous acoustic dampening shroud 91. Referring to fig. 18, the porous noise reduction cover 91 is a cover body with openings at both ends, and the opening diameter of the first end is smaller than that of the second end. The cover body surface of the porous noise reduction cover 91 is parallel to the flow direction of the airflow in the flow guide section. Referring to the specific example shown in fig. 17 and 18, the first end of the perforated sound-deadening cap 91 is connected to the fan assembly 60, and the second end faces the heating assembly 50. In an implementation solution, a motor cover 142 is disposed at an end of the motor housing in the fan assembly 60 near the heating assembly 50, and the porous noise reduction cover 91 and the motor cover 142 are assembled to form a porous noise reduction cavity. In the specific implementation, the sound absorption coefficient and frequency band of the porous noise reduction cover 91 can be adjusted by the pore diameter and the opening ratio according to the spectral characteristics of noise.

To further improve the sound absorbing ability of the noise reduction assembly, the noise reduction assembly may further include a porous sound absorbing material 92 filled in the airflow passage. Referring to fig. 18, a porous sound absorbing material 92 is added in the cavity forming the porous sound absorbing cavity after the porous sound absorbing cover 91 is assembled with the motor cover 142, so that the sound absorbing capacity of the whole structure is increased, and when sound waves enter, a part of sound energy is rubbed in the pores of the porous material and is converted into heat energy to be dissipated. The surface of the porous silencing cavity is parallel to the flow direction of the airflow, so that the aerodynamic performance is not influenced, and no airflow regeneration noise exists; the structure can effectively reduce the noise in a specific frequency band area, thereby leading the whole noise to be correspondingly reduced. In particular, the porous sound absorbing material may be a sound absorbing sponge.

What needs to be added here is: the porous silencing cavity can be filled with the cross section of the air flow channel, namely, the air flow coming out of the fan assembly completely enters the second flow-through section after passing through the porous silencing cavity; of course, the porous muffling cavity may not be filled with the cross section of the airflow passage, that is, a part of the airflow from the fan assembly enters the second flow-through section after passing through the porous muffling cavity, and the other part of the airflow directly enters the second flow-through section.

Figure 19 shows an external view of a hair dryer provided in an embodiment of the present application. As shown in fig. 19, the hair dryer includes a main body 10, a handle 40, an air intake grill 600, and an exposed part 700. The air inlet grid 600 is arranged at the first air inlet 11 of the air flow channel; an exposed part 700 positioned at an air inlet side of the air inlet grid 600; wherein, a gap for air flow circulation is formed between the exposed part 700 and 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 grill 600, which helps to reduce noise. The user can blow air by holding the blower by the handle 40, and the handle 40 is provided with a control unit 218 (see fig. 10, 11 and 12), and 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., but the embodiment is not particularly limited. A battery assembly is also disposed within the handle 40 and is electrically connected to the controller assembly, the battery assembly being configured to provide power to the various components of the blower, or a power cord 500 of the blower passing through the handle 40 and being connected to the controller assembly, the power cord 500 being connected to an external power source to provide power to the various components of the blower.

The technical solution adopted in the present embodiment is described below with reference to specific application scenarios to help understanding. In the following application scenarios, the hair dryer is taken as a handheld hair dryer as an example.

Application scenario 7

When the user needs to use the hair dryer, the hair dryer is started. At the moment, a fan assembly of the blower works, negative pressure is formed in the airflow channel to suck external air, airflow enters the airflow channel, passes through the first circulation section and obliquely flows into the second circulation section under the action of the drainage section; due to the existence of the flow guide section, the airflow can not impact the windward side formed by the step fall because of the step fall existing between the first circulation section and the first circulation section. The user can feel the hair-dryer noise lower in the use, uses and experiences well.

Application scenario 8

When the user needs to use the air blower, the air blower is started. At the moment, a fan assembly of the blower works in the airflow channel to form negative pressure so as to suck external air, and airflow enters the airflow channel, passes through the first circulation section and obliquely flows into the second circulation section under the action of the drainage section; due to the existence of the flow guide section, the airflow can not impact the windward side formed by the step fall because of the step fall existing between the first circulation section and the first circulation section. In addition, because the silencing component is arranged in the airflow channel, partial sound waves generated by airflow circulation enter the pores of the silencing component, and are converted into heat energy by friction in the pores to be dissipated; the user can feel the hair-dryer noise low in the use, uses and experiences well.

With continued reference to the example shown in figures 19, 20, and 21, figure 19 is a side view of a blower as provided by an embodiment of the present application; figure 20 is a rear view of a blower as provided by an embodiment of the present application; figure 21 is an isometric view of a blower according to an embodiment of the present application. Referring to fig. 19, 20 and 21, the present embodiment provides a blower including: a main body 10, an air inlet grill 600, and an exposed part 700. Wherein the main body 10 has an air flow passage (not shown in the drawings); an air inlet grid 600 is positioned at the end of the main body, and air enters the airflow channel through the air inlet grid; an exposed part 700 positioned at an air inlet side of the air inlet grid 600; wherein, a gap for air flow circulation is formed between the exposed part 700 and the air inlet grid 600.

According to the technical scheme provided by the embodiment of the application, the exposed part 700 is arranged on the air inlet side of the air inlet grid 600, and a gap for air circulation is formed between the exposed part 700 and the air inlet grid 600; the air flow does not directly enter the air flow channel through the air inlet grid 600, but enters the gap between the exposed part 700 and the air inlet grid 600, and then enters the air flow channel through the air inlet grid 600, which is beneficial to reducing noise; in addition, the technical scheme that this application embodiment provided has still avoided the whole problem of exposing outside of air inlet grid 600, and the hair-dryer is comparatively pleasing to the eye in appearance.

Referring to fig. 19 and 23, the exposed part 7000 is protruded from the air inlet surface where the air inlet grille 600 is located, so that the gap includes a first gap D along the plane direction of the air inlet surface and a second gap L along 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 grill 600, which helps to reduce noise.

In an implementable embodiment of the present application, referring to fig. 19 and 23, the main body 10 in the embodiment of the present application is implemented in a manner that the main body 10 includes a housing, various functional components of the blower are disposed in a cavity of the housing, and the housing is provided with a first air inlet 11 and a first air outlet 12. The first air inlet 11 is provided with an air inlet grid 600. The components disposed inside the housing include, but are not limited to, the controller assembly 130 and the heating assembly 50, the fan assembly 60, etc. connected to the controller assembly 130. The blower assembly 60 includes a motor for driving the fan and a fan for generating negative pressure by rotation, and the blower assembly 60 is configured to generate negative pressure to suck air from the first air inlet 11 into the airflow channel of the main body 10, and to blow out the air from the first air outlet 12 after being heated by the heating assembly 50. The main body 10 is further provided with a handle 40, a user can hold the hair dryer through the handle 40 to blow air, and the handle 40 is provided with control keys connected with the control unit, so that the hair dryer can be controlled to perform different functions, for example, the hair dryer can be controlled to blow air with different sizes. Also disposed within the handle 40 is a battery assembly that is connected to the controller assembly 130 and is configured to provide power to the various components of the blower, or a power cord 500 of the blower is connected to the control unit through the handle 40 and the power cord 500 is connected to an external power source to provide power to the various components of the blower.

Referring to fig. 20 and 21, in a direction from the first wind inlet 11 to the first wind outlet 12 of the airflow channel, the exposed part 700 shields at least a partial area of the wind inlet grille 600.

The exposed part 700 shields at least a part of the area of the air inlet grille 600, which will inevitably affect the gas flow rate per unit time at the first air inlet 11. The influence on the gas flow rate is minimized while reducing the noise, and the exposed part 700 shields a partial area of the air inlet grill 600. Specifically, as shown in fig. 20, the air inlet grille 600 has an end surface 6001 facing the exposed part 700; the edge of the end surface 6001 exceeds the projected contour edge of the exposed component 700 on the end surface 6001.

More specifically, along the periphery of the end surface 6001, the projected contour edge of the exposed component 700 on the end surface 6001 is kept at a fixed distance from the periphery of the end surface 6001. In one embodiment, the fixed distance (i.e., the gap D shown in FIG. 19) may be one of 2-8 mm, such as 5 mm. Due to the blocking effect of the exposed part 700, with the above design, the air can uniformly enter the air inlet grid 600 from the peripheral edge of the exposed part 700, and the air inlet path of the air flow is bent to a certain degree, which is helpful for reducing noise.

In order to ensure a certain air inlet amount, the approximate air inlet area of the inlet air of the blower needs to be about 1000-1400 square millimeters. Because the exposed part 700 is shielded in this embodiment, the distance between the air inlet grid and the exposed part can be adjusted to meet the requirement of the air inlet area. For example, as shown in fig. 19 and 23, the distance between the edge of the exposed part 700 and the air inlet grid 600 (i.e., the gap L shown in fig. 19) may be one of 3 to 9mm, such as 6mm, 7mm, and the like.

In an actual scene, dust is accumulated on the air inlet grid 600 due to long-term use of the blower, and the air inlet amount of the first air inlet is affected by the accumulated dust. The user needs to clean the air inlet grill 600 periodically. In order to facilitate the user to clean the air inlet grille, the exposed part 700 in this embodiment may also be used as a holding portion, so that the user can easily detach the air inlet grille 600 from the main body 10 by holding the exposed part 700. That is, the exposed part 700 is connected to the air inlet grill 600; the air inlet grill 600 is detachably coupled to the main body 10; the exposed part 700 serves as a holding part, and under the action of a detaching force, the air inlet grille 600 is detached from the main body 10.

In the embodiment of the present application, the air inlet grille 600 may be connected to the main body 10 in various ways. For example, the air inlet grille 600 may be magnetically attached to the main body 10, or may be connected to the main body 10 by a screw, or may be connected to the main body 10 by a snap, and the like, which is not particularly limited in this embodiment.

With continued reference to FIG. 22, the exposed part 700 is attached to the central portion 63 of the air inlet grille 600; a plurality of ventilation holes 64 are uniformly distributed around the central part 63. Further, the ventilation holes 64 are arc-shaped holes extending from the central portion 63 to the edge of the air inlet grille 600 along an arc.

Referring to fig. 19 and 23, in order to make the air flow enter the air inlet grille 600 more smoothly, the cross section of the exposed part 700 is reduced from the first air inlet 11 to the first air outlet 12 to form a guide surface 71, so that the air flow flows into the air inlet grille 600 along the guide surface 71.

In one implementation, as shown in fig. 22, the exposed part 700 includes: an exposed panel 72 and a flow guide plate 73. The drainage plate 73 is positioned between the exposed panel 72 and the air inlet grid 600; the guide surface 71 is provided on the flow guide plate 73 to guide the airflow to enter from the outer edge of the flow guide plate 73 and to the air inlet grid 600 along an arc path.

In the embodiment of the present application, the exposed part 700 and the air inlet grid 600 may be connected by various connection methods, such as welding, screwing, clamping with a snap fit to a slot, and the like; alternatively, the exposed part 700 and the air inlet grille 600 are integrally formed.

With continued reference to fig. 22, fig. 22 schematically shows a connection mode, in which a first structure 61 for positioning is provided on an end surface of the air inlet grille 600 facing the exposed part 700; the exposed part 700 maintains the position relation with the air inlet grid 600 through the first structure 61; the air inlet grid 600 is connected with the exposed part 700 through a connecting part 80 after the position relation of the exposed part 700 is fixed.

More specifically, the air inlet grid 600 is provided with a connecting through hole 62; positioning columns 611 are respectively arranged at two ends of the hole diameter of the connecting through hole 62 on the end surface of the air inlet grid 600 facing the exposed part 700; the exposed part 700 is provided with a positioning hole 74 matched with the positioning column 611, and a connecting blind hole 75 (as shown in fig. 24) corresponding to the connecting through hole 62; the connection member 80 penetrates the connection through hole 62 and enters the connection blind hole 75 to connect the air inlet grille 600 and the exposed member 700.

Further, as shown in fig. 19, an end surface of the air inlet grille 600 facing the exposed part 700 is a cambered surface. Similarly, the end surface of the exposed part 700 facing away from the air inlet grid 600 may also be a cambered surface. The cambered surface design is firstly beautiful and is helpful to reduce the noise of the whole machine.

Further, as shown in fig. 23, the main body 10 of the present embodiment may further include a nozzle 230, and the nozzle 230 may be detachably connected to the first air outlet 12 of the air flow channel of the main body 10. The air nozzle 230 can concentrate the blown air flow at the first air outlet 12 to meet the use requirement of the user in a specific scene (for example, when the user styles).

The technical solution adopted in the present application is described below with reference to specific application scenarios to help understanding. In the following application scenarios, the hair dryer is taken as a handheld hair dryer as an example.

Application scenario 9

When the user needs to use the hair dryer, the hair dryer is started. At this time, the blower assembly of the hair dryer operates to form a negative pressure in the airflow channel to suck in the outside air, and the rear airflow of the hair dryer enters the gap between the exposed part and the air inlet grid, then enters the airflow channel through the air inlet grid, is heated by the heating assembly, and is blown out from the first air outlet 12. The air current does not directly get into the main part through the air inlet grid inside, and this helps the noise reduction, and the user can experience the hair-dryer noise lower, uses and experiences well.

Application scenario 10

When a user uses the blower, the user finds that more dust is on the air inlet grid of the blower. At this time, the user holds and rotates the exposed part, and the air inlet grille can be detached from the main body of the hair dryer. The detached air inlet grid can be cleaned by a user in a water washing or hair brush mode. After cleaning, the user holds the exposed part with hands, places the air inlet grid at the connecting position, and then rotates the air inlet grid to install the air inlet grid on the main body.

When the inventor uses the existing hair drier, the hair drier is opened to blow hair, and the hair drier feels too hot or too cold for a while; then look at the corresponding control on the blower to change the mode of the blower by adjusting the control. Namely, the existing hair drier has poor use experience for users. To above-mentioned problem, this application provides following embodiment, and the user can not go to contact the air-out, can judge that the hair-dryer air-out is cold wind or hot-blast.

Figure 25 is a schematic diagram of a blower according to an embodiment of the present application. As shown in fig. 25, the present embodiment provides a hair dryer including: a main body 10 and an indicating assembly 250. Wherein, the end of the main body 10 has a first air inlet 11. The indicating assembly 250 surrounds the end of the main body 10 and is electrically connected with the main body 10, wherein the indicating assembly 250 displays different indicating marks in response to the outlet air temperature of the blower.

The technical scheme that this application embodiment provided, with main part 10 electrical connection's instruction subassembly 250, can respond to the difference of the air-out temperature of main part 10, show different instruction sign to make the user learn the air-out temperature of main part 10 according to different instruction signs. The user can not contact the air-out of hair-dryer, can judge the air-out temperature according to the difference of instruction sign, and the mode is simple directly perceived, when avoiding the hair-dryer to blow out the hot-blast, causes the potential harm to the user.

In an implementable embodiment of the present application, referring to fig. 25 and 26, the main body 10 in the embodiment of the present application is implemented in such a way that the main body 10 comprises a housing, various functional components of the blower are arranged in a cavity of the housing, and the housing is provided with a first air inlet 11 and a first air outlet 12. The first air inlet 11 is provided with an air inlet assembly 300. In particular embodiments, the intake assembly 300 may include at least: such as the exposed part 700 and the air intake grill 600 in fig. 19. The components disposed inside the housing include, but are not limited to, the controller assembly 130 and the heating assembly 50, the fan assembly 60, etc. connected to the controller assembly 130. The blower assembly 60 includes a motor for driving the blower and a blower for generating negative pressure by rotation, and the blower assembly 60 is configured to generate negative pressure to suck air into the main body 10 from the first air inlet 11 and blow out from the first air outlet 12 after being heated by the heating assembly 50. The body 10 is further provided with a handle 40, a user can hold the hair dryer through the handle 40 to blow air, and the handle 40 is provided with control buttons connected to the controller assembly 130, so that the control buttons can be used to control the hair dryer to perform different functions, for example, control the hair dryer to blow out different amounts of air. Also disposed within the handle 40 is a battery assembly that is connected to the controller assembly 130, the battery assembly being configured to provide power to the other components, or a power cord of the blower passing through the handle 40 and connected to the controller assembly 130, the power cord being connected to an external power source to provide power to the other components.

In the embodiment of the present application, the indication assembly 250 may be disposed at various positions on the main body 10 so that the user can easily and visually see the indication mark, for example, the side of the main body 10 away from the handle 40, or the indication assembly 250 may be disposed on the handle 40. In one implementation, the indicating assembly 250 is an annular structure through which the airflow entering through the first intake vent 11 may pass. The indicator assembly 250 can be space-saving in an annular configuration, the interior of which can be used to house other components of the blower, such as the blower assembly 60, and through which the blower's vent passage can pass. Meanwhile, the indicating component 250 with the annular structure has a wide range for displaying the indicating marks, when a user uses the hair dryer, the user often changes various angles to blow hair, and the indicating component 250 with the annular structure can be convenient for the user to observe the indicating marks conveniently at all angles.

Meanwhile, the air flow entering through the first air inlet 11 can pass through the annular structure, and the air flow entering through the first air inlet 11 can blow through the annular structure, so that heat generated during the operation of the indicating assembly 250 is taken away, and the service life of the indicating assembly 250 is prolonged.

Further, the outer surface of the indicating member 250 is flush with the outer surface of the main body 10. The indicating component 250 and the main body 10 are seen as a whole in appearance, so that the whole appearance of the hair dryer is more attractive, meanwhile, the indicating component 250 does not protrude out of the outer surface of the main body 10, excessive abrasion of the indicating component 250 is avoided, and the service life of the indicating component 250 is prolonged.

Further, in an achievable embodiment of the present application, the outer surface of the indication component 250 includes at least two light emitting surfaces, wherein at least one light emitting surface extends along a normal direction of the first air inlet 11, and at least one light emitting surface extends along a circumferential direction around the main body 10. When the indication mark is displayed, the indication component 250 can display at least towards two directions, and the user can view the indication mark along the normal direction of the first air inlet 11 and the circumferential direction of the main body 10, so that the user can conveniently view the indication mark without adjusting the angle, and the use of the user is facilitated.

In the embodiment of the present application, referring to fig. 26 to 28, an achievable manner of the indication assembly 250 is that the indication assembly 250 includes a lamp panel 210. The lamp panel 210 includes, but is not limited to, a ring structure. The lamp panel 210 includes a PCB (Printed Circuit Board) Board and an LED (Light Emitting Diode) Light source disposed on the PCB Board, the PCB Board is electrically connected to the main body 10, and the main body 10 provides electric energy for the lamp panel 210. The lamp panel 210 can be disposed on the surface of the main body 10, or the main body 10 is provided with a light hole, and the lamp panel 210 can emit light through the light hole. The indication mark of the indication assembly 250 includes, but is not limited to, the color of light emitted by the LED light source, for example, when the light is blue, it indicates that the main body 10 blows cold air. When the light turns red, it indicates that the body 10 blows hot air. Or, the light has a gradual change process, when the light is blue, it indicates that the body 10 blows cold air, and when the color of the light gradually changes to red, it indicates that the air blown by the body gradually becomes hot, and until the outlet air temperature exceeds a certain temperature, the light stops changing to stay at red. The indication mark of the indication component 250 may also indicate different outlet air temperatures by lighting light sources at different positions, for example, a plurality of LED light sources are arranged in a circle, and indicate different outlet air temperatures when the light sources at different positions are lit. The indicator of the indicating component 250 may also indicate different outlet air temperatures by lighting different numbers of light sources, for example, the lower the outlet air temperature is indicated by the smaller the number of lighting light sources. It should be noted that, the implementation manners of the indication marks of the indication component 250 may be implemented alone or in combination with each other, and the embodiments of the present application are not limited specifically.

In order to make the light emitted from the lamp panel 210 more uniform, in the embodiment of the present application, with reference to fig. 26 to 30, the indication assembly 250 further includes a light guide 220. The light guide 220 includes, but is not limited to, a ring structure. The light guide body 220 can conduct the light of the lamp panel 210, and the light is more uniform, so that the texture of the product is increased. The light guide 220 having an annular structure means that the overall shape of the light guide 220 is an annular structure that matches the lamp panel 210. In order to transmit light, one way to realize the light guide 220 is that the light guide 220 has an abutting portion 221 and a light guide portion 222, the abutting portion 221 abuts against the lamp panel 210, the light guide portion 222 extends for a certain length along the longitudinal direction of the main body 10, one end of the light guide portion 222 is connected to the abutting portion 221, and the other end has a light exit surface. In order to match the annular structure of the lamp panel 210, the abutting portion 221 is an annular structure matching the shape of the lamp panel 210, and the light guide portion 222 may be a cylindrical structure. The abutting portion 221 and the light guide portion 222 may be integrally formed.

The light guide 220 is made of a light diffusion material or a full-transparent material, for example, a PC (Polycarbonate) material that is light-diffusing or full-transparent. In the case of having the light guide 220, the lamp panel 210 may be disposed not only on the surface of the main body 10 but also inside the main body 10, and light emitted from the lamp panel 210 is transmitted to the surface of the main body 10 through the light guide plate. In one implementation, the indicating assembly 250 includes a lamp panel 210 and a light guide 220, and both the lamp panel 210 and the light guide 220 are annular structures, where the annular structure of the light guide 220 can also be understood as a cylindrical structure of the light guide 220. At the end having the first air inlet 11, an annular accommodating chamber 135 is provided in the main body 10. The lamp panel 210 is located in the accommodating cavity 135 and electrically connected to the main body 10. One end of the light guide body 220 extends into the accommodating cavity 135 and abuts against the lamp panel 210, and the other end of the light guide body extends out of the accommodating cavity 135 to the indicating area of the main body 10. The indication area includes, but is not limited to, an outer surface of an end portion of the main body having the first intake vent 11. The light emitted from the lamp panel 210 enters the light guide 220 from one end of the light guide 220, is transmitted by the light guide 220, and is emitted from the other end of the light guide 220, so that the light is emitted from the outer surface of the main body 10.

Lamp plate 210 and light guide 220 are the loop configuration, can effectively save the inner space of hair-dryer, the inside of loop configuration can be used for setting up other parts of hair-dryer, for example be used for setting up fan subassembly 60, the annular configuration can be passed through to the ventilation passageway of hair-dryer, the annular configuration can be passed through to the air current that gets into through first air intake 11, the annular configuration can be blown through to the air current that gets into through first air intake 11 to take away the heat that indicates subassembly 250 during operation produced, the life of indicating subassembly 250 has been improved. Meanwhile, the range of the indicating marks displayed by the light guide body 220 with the annular structure is wide, when a user uses the hair dryer, the user often changes various angles to blow hair, and the indicating marks can be conveniently observed at all angles by the light guide body 220 with the annular structure.

Further, in order to protect the end of the light guide 220 protruding out of the accommodating cavity 135, the outer periphery of the end of the light guide 220 located on the outer surface of the main body 10 is covered with the decoration cover 23. Can protect light guide 220 on the one hand through dress trim cover 23, dress trim cover 23 on the other hand still can further play the effect of leaded light for light is more even. The cosmetic cover 23 may be designed along with the appearance of the main body 10, thereby making the overall appearance of the hair dryer more beautiful. For example, the accommodating cavity 135 is located inside an end portion of the main body 10 having one end of the first air inlet 11, and the accommodating cavity 135, the lamp panel 210, the light guide 220 and the decoration cover 23 are all annular structures. The main part 10 is cylinder type structure, holds the chamber 135 and arranges along the circumference of main part 10, and the lamp plate 210 setting of annular structure is in holding the chamber 135, and light guide 220 and dress trim cover 23 all round main part 10 round. In use, the lamp panel 210 emits light, and the light is transmitted to the decorative cover 23 through the light guide member 220. An aperture is formed on the outer surface of the main body 10 when viewed from the outer appearance of the main body 10, and whether hot air or cold air is blown out from the blower is judged according to the different colors of the apertures. The aperture surrounds the periphery of main part 10 round, can make things convenient for the user to watch, and the difference can angle regulation, can watch, and convenience of customers uses.

Further, referring to fig. 29 and fig. 30, in the embodiment of the present application, the lamp panel 210 has a plurality of lamp beads towards one side of the light guide 220, and the plurality of lamp beads are annularly distributed on the lamp panel 210. The light guide 220 includes an abutting portion 221 and a light guide portion 222 provided on the abutting portion 221. Butt portion 221 with lamp plate 210 butt, butt portion 221 is last to be provided with a plurality of recesses 2211, holds one at least in every recess 2211 the lamp pearl. The light guide part 222 extends out of the receiving cavity 135 to an indication area of the main body 10. The indication area includes, but is not limited to, an outer surface of an end portion of the main body having the first intake vent 11. Wherein, lamp plate 210 is located and holds the chamber 135, and the butt portion 221 of light guide 220 is used for butt lamp plate 210, consequently, butt portion 221 need stretch into and hold the chamber 135 in with lamp plate 210 butt. The light guide part 222 of the light guide 220 needs to transmit light emitted from the lamp panel 210 to the outer surface of the main body 10, and therefore, the light guide part 222 needs to extend out of the accommodating cavity 135 to the outer surface of the main body 10. Meanwhile, the portion of the light guide part 222 extending 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 part 222 does not protrude from the outer surface of the main body 10, thereby preventing the light guide part 222 from being excessively worn and improving the service life of the light guide part 222.

The outer surface of the light guide portion 222 includes at least two light emitting surfaces, wherein at least one light emitting surface extends along a normal direction of the first air inlet 11, and at least one light emitting surface extends along a circumferential direction around the main body 10. When displaying the indication mark, the light guide portion 222 may display the indication mark in at least two directions, and a user may view the indication mark along a normal direction of the first air inlet 11 and a circumferential direction of the main body 10, so that the user may view the indication mark conveniently without adjusting an angle, and the user may use the indication mark conveniently.

The recess 2211 on the butt portion 221 can play a role of a lens, light emitted by the lamp bead can be more concentrated through the refraction effect of the recess 2211, and then is transmitted to the outer surface of the main body 10 through the light guide portion 222, so that the light is more uniform when being emitted from the light guide portion 222, and the occurrence of the dark light emitting condition is avoided. The light guide portion 222 has a wavy structure at an end thereof remote from the contact portion 221, so that the strength of the connection with the decorative cover 23 can be improved and the appearance can be enhanced.

Still further, the recess 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 emitting requirements, in this embodiment, it is not limited that the groove 2211 is only a hemispherical structure, and the groove 2211 may also be in other shapes, for example, an elliptical structure, a saddle-shaped structure, an 8-shaped structure, and the like.

In the embodiment of the present application, the light guide 220 may be connected to the main body 10 in various ways, and in one way, with reference to fig. 29 and fig. 30, the abutting portion 221 and/or the light guide portion 222 are provided with a plurality of first clamping portions 223, and a plurality of second clamping portions are provided in the accommodating 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 to the accommodating cavity 135. The first clamping portion 223 includes, but is not limited to, a protrusion, and the second clamping portion includes a recess 2211 for cooperating with the protrusion. Or the first clamping portion 223 is a groove 2211 and the second clamping portion is a protrusion. The first and second engaging

portions

223 and 223 can fix the mounting position of the light guide 220, and the light guide 220 can be easily and quickly mounted on the main body 10.

Further, with reference to fig. 29 and fig. 30, in order to prevent the light emitted from the lamp panel 210 from being weakened when the light is transmitted through the light guide 220, in the embodiment of the present invention, the abutting portion 221 and a part of the surface of the light guide portion 222 are covered with the light shielding layer 224. The light-shielding layer 224 may be disposed on a surface of the light guide 220 where light is not required to enter and exit, such that light cannot be transmitted through the portion having the light-shielding layer 224, but only through the portion where the light-shielding layer 224 is not disposed. For example, the light shielding layer 224 may be disposed on the rest of the abutting portion 221 except for the groove and on the light guiding portion 222 except for the light exiting surface. When the light guide 220 transmits light, the light can only be transmitted from the set light path, so that the light is prevented from being diffused and the light intensity is weakened. In order to prevent the light shielding layer 224 from absorbing light, the light shielding layer 224 may be made of a reflective material, and the light guiding member 220 is coated with the reflective material to form the light shielding layer 224, and a surface of the light shielding layer 224 facing the inside of the light guiding member 220 is reflective to prevent light absorption. The light reflecting material includes, but is not limited to, aluminum.

The technical solution adopted in the present application is described below with reference to specific application scenarios to help understanding. In the following application scenario, the hair dryer is taken as a handheld hair dryer, and the indication mark is light.

Application scenario 11

When the user need use the hair-dryer, open the hair-dryer, do not need the user to go the air-out that contacts the hair-dryer this moment with the hand, only need watch the colour of the light of indicating the subassembly on the hair-dryer can judge that the air-out of hair-dryer is cold wind or hot-blast.

When the light is blue, it indicates that the body blows cold air. When the light turns red, it indicates that the body blows hot air.

Application scenario 12

When the light is blue, it indicates that the body blows cold air. When the light gradually changes from blue to red, the wind blown out by the main body gradually becomes hot until the outlet air temperature exceeds a certain temperature, and the light stops changing and stays at red. When the light turns red, it indicates that the body blows hot air.

Figure 31 is a schematic view of the internal structure of a handle of a hair dryer according to an embodiment of the present application. Referring to fig. 19, 20, 21 and 31, the hair dryer of the present embodiment includes: a body 10 and a handle 40. In the embodiment of the present application, the blower is a hand-held blower.

The main body 10 has a first inlet 11 and a first outlet 12. The main body 10 may include a housing, in which various functional components of the hair dryer are disposed in an inner cavity defined by the housing, and the housing is provided with a first air inlet 11 and a first air outlet 12. The functional components disposed inside the housing include, but are not limited to, the controller assembly 130 and the heating assembly 50, the fan assembly 60, etc. connected to the controller assembly 130. Specifically, as mentioned above, the controller assembly 130 may include a main control board. The blower assembly 60 includes a motor for driving the fan and a fan for generating negative pressure by rotation, and the blower assembly 60 is configured to generate negative pressure to suck air into the main body 10 from the first air inlet 11 and blow out the air from the first air outlet 12 after being heated by the heating assembly 50.

The handle 40 is connected to the body 10. The extending direction of the handle 40 may be perpendicular to the connecting line direction of the first air inlet 11 and the first air outlet 12. Preferably, the handle 40 is also rotatable relative to the body 10 so that the handle 40 can be switched between a folded position and an unfolded position to facilitate storage of the blower.

In this embodiment, the handle 40 of the hair dryer of this embodiment may preferably be cylindrical. The cylindrical handle 40 is convenient for a user to hold, has good hand feeling and is also good in aesthetic measure.

The handle 40 is provided with a first switch and a second switch, an operation surface of the first switch is perpendicular to a connection line (as shown by a dash-dot line in fig. 19) between the first air inlet 11 and the first air outlet 12 and faces the first air inlet 11, and an operation surface of the second switch is parallel to a connection line between the first air inlet 11 and the first air outlet 12. The first switch and the second switch in this embodiment may be any function selecting switch, but this embodiment is not limited thereto, and the first switch is an overall control switch 2181, and the second switch is a mode selecting switch 400, which are taken as an example to describe the structure and function of the hair dryer in this embodiment, where the overall control switch 2181 is used to control the hair dryer to be turned on or off, and the mode selecting switch 400 is used for a user to select a working mode of the hair dryer.

Generally, for a mainstream user, according to the holding habit of the user, the right hand of the user holds the handle 40 of the hair dryer, the user holds the hair dryer and blows hair towards the head, the first air outlet 12 is located at the left side of the main body 10, and the first air inlet 13 is located at the right side of the main body 10. When the handle 40 is seen from top to bottom, the user holds the handle 40 with four fingers counterclockwise, the thumb leans against one side of the handle 40 close to the first air inlet 13, and the free end parts of the rest four fingers are positioned on the side of the handle 40 facing the user. Taking the first switch as the main control switch 2181 and the second switch as the mode selection switch 400 as an example, the main control switch 2181 is disposed on one side of the handle 40 facing the first air inlet 11, and the mode selection switch 400 is disposed on one side of the handle 40 facing the user, that is, the operation direction of the operation surface of the mode selection switch 400 is perpendicular to the connection line between the first air inlet 11 and the first air outlet 12. The first switch and the second switch are separately arranged, the layout is reasonable, the use habit of a user is met, and the operation is convenient.

The operation surfaces of the first switch and the second switch are switch surfaces that are touched by fingers when the user operates the switches.

In addition, for convenience of explanation, the following description will use the first switch as a master control switch and the second switch as a mode selection switch to more clearly express the effect of the present technical solution. It can be understood by those skilled in the art that the designer can set the first switch and the second switch as other function switches according to the requirement, and the embodiment is not limited. In this embodiment, the distance from the master switch 2181 to the main body 10 may be 24mm to 30 mm. More preferably, the distance from the master switch 2181 to the main body 10 is 27 mm. The inventor selects 27mm as the most appropriate distance between the master switch 2181 and the main body 10 through continuous tests and measurement, so that when the hand of a user is held upwards to the maximum extent, the thumb is held at the lower side of the switch, the master switch 2181 is not touched, uncomfortable feeling is generated, and when the thumb is tilted, the master switch 2181 can be touched well, so that the operation is convenient, fast and comfortable.

Further, the master control switch 2181 may be a push button. The switch 2181 of always controlling has two switching positions, OFF position (closed position) and ON position (starting position), and the ON position can be located the top of OFF position, and when using, the user supports the promotion upwards with the switch 2181 of always controlling for the switch 2181 of always controlling switches to the ON position, and the hair-dryer starts, and the user pushes back the switch 2181 of always controlling downwards when the user, makes the switch 2181 of always controlling switch to the OFF position, and the hair-dryer is closed. Certainly, in other embodiment modes, the ON bit can be located below the OFF bit, when the air blower is used, the user pushes the main control switch 2181 downwards, so that the main control switch 2181 is switched to the ON bit, the air blower is started, and when the user pushes the main control switch 2181 upwards, the main control switch 2181 is switched to the OFF bit, and the air blower is turned OFF. Because the thumb of the user is in a vertical state when the user holds the handle 40, in the embodiment, the main control switch 2181 is designed to be in a push button form, is more fit with the hand structure of a human body, is more beneficial to thumb operation, and accords with the operation habit of the user.

In addition, for convenience of operation, an anti-slip projection is provided on the outer surface of the overall control switch 2181, so that a user can operate the overall control switch 2181 more easily.

Optionally, in this embodiment, 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 whole hair drier is more regular and beautiful.

The number of the mode selection switches is not limited, and the mode selection switches can be specifically related to function setting of the hair dryer, so that a user can select the hair dryer to work in different modes by triggering different mode selection switches, the intelligent selection function of the hair dryer is met, and the requirements of the user can be flexibly met.

Specifically, in this embodiment, the two mode selection switches 400 may be included, and the master control switch 2181 may be equidistant from the two mode selection switches 400. So that the connection line of the master control switch 2181 and the two mode selection switches 400 can form an isosceles triangle. The distance between the two mode selection switches can be 13 mm-19 mm. In the present embodiment, it is preferable that the distance between the two mode selection switches is 16 mm. The inventor tests that when the distance between the two mode selection switches is 16mm, the user can avoid mistaken touch and avoid operation inconvenience caused by too far distance between the two mode selection switches when the user operates the mode selection switches by one hand. The utility model provides a hair-dryer, the hair-dryer includes main part and handle, first air intake and first air outlet have in the main part, be equipped with first switch and second switch on the handle of hair-dryer, the operation face of first switch is towards first air intake, the line of the first air intake of operation direction perpendicular to of the operation face of second switch and first air outlet, so that the user is when gripping the handle, first switch just can be touched to the thumb, through thumb operation first switch, and the second switch can just be touched to the free end tip of four fingers, select the second switch through four fingers, be convenient for operate, accord with user operation custom, realize the functional partitioning, and reasonable in layout prevents the maloperation, user experience can effectively be improved.

Specifically, as shown in fig. 19, the first outlet 12 may be located at the left side of the mode selection switch 400, and the first inlet 11 is located at the right side of the mode selection switch 400. It should be noted that, when a user holds the hair dryer, the user holds the hair dryer with the right hand, so that when the user holds the hair dryer with the right hand, the mode selection switch 400 is located on the side of the handle 40 visible to the user, which is convenient for the user to select the operation, and the hair dryer does not need to be turned over to select the mode selection switch 400 for normal use, so that the operation is convenient and fast, and the user experience is better.

Fig. 32 is a control schematic diagram of a blower according to an embodiment of the present application. As shown in fig. 32, in the present embodiment, a controller assembly 130, and a heating assembly 50 and a fan assembly 60 electrically connected to the controller assembly 130 may be disposed in the main body 10. In the embodiment of the present application, in order to control the heating assembly 50 and the fan assembly 60 by the controller assembly 130, a control circuit for controlling the operating states of the heating assembly 50 and the fan assembly 60 may be disposed on the controller assembly 130. Through the control circuit, the controller assembly 130 can control the fan assembly 60 in various working states, for example, start and stop of the fan assembly 60 are controlled, the power of a motor driving a fan is controlled, different rotating speeds are controlled to achieve the wind force blown out by the fan assembly 60, and the fan assembly 60 is controlled to blow out strong wind, breeze and other states. Of course, the control of the wind power is not limited to strong wind and breeze, and the air outlet of various wind powers can be controlled according to different requirements. The controller assembly 130 may also control the heating assembly 50 in various operating states, for example, control the start and stop of the heating assembly 50, and control the temperature of the heating assembly 50 by controlling the power current of the heating assembly 50, so that the heating assembly 50 outputs the maximum power, thereby realizing the state that the outlet air is changed into hot air, micro hot air, and the like, and thus enabling the hair dryer to operate in different operating modes.

It should be noted that, when only the main control switch 2181 is triggered to start the hair dryer, the hair dryer may be in a preset default operating mode, for example, the heating assembly 50 is in a slightly hot wind state, and the blower assembly 60 is in a slightly wind state, and if a user needs to change the operating mode, the current operating mode of the hair dryer may be changed by triggering different mode selection switches. Of course, it should be understood that the default operating mode of the blower is not limited to the above description, and those skilled in the art can specifically set the default operating mode according to actual situations, and this embodiment is only an example.

Based on the above embodiments, in particular, the mode selection switch 400 may include a cool air mode selection switch 410. The cool air mode selection switch 410 may be electrically connected to the controller assembly 130, and the controller assembly 130 controls the heating assembly 50 not to generate heat when the cool air mode selection switch 410 is closed. It should be noted that the closing mode of the cold air mode selection switch 410 may be a pressing mode, the cold air mode selection switch 410 may be a pressing switch, and after the user presses the cold air mode selection switch 410, the controller assembly 130 receives the signal to control the heating assembly 50 not to generate heat, specifically, the mode of controlling the heating assembly 50 not to generate heat may be to cut off a circuit connected to the heating assembly 50, or to control the current of the heating assembly 50 to be zero. At this time, the wind power of the fan assembly 60 may not be changed, that is, the wind power in the default operating mode is only used for the blower to blow out cold air, so as to meet the requirement of the user for drying the 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 controlling the fan assembly 60 to switch to maximum power operation and controlling the heating assembly 50 to generate heat at maximum power when the high power mode selection switch 420 is closed by the controller assembly 130. It should be noted that the closing mode of the high power mode selection switch 420 may be a pressing mode, the high power mode selection switch 420 may be a pressing switch, and after the user presses the high power mode selection switch 420, the controller component 130 receives the signal to control the motor of the fan component 60 to operate at the maximum power, so that the fan can rotate at the maximum speed to blow out the maximum wind power, and the heating component 50 can be controlled to pass the maximum current, so that the heating component 50 heats at the maximum power, and the hair dryer blows out the maximum hot wind, so as to meet the requirement of the user for quick hair drying.

When the temperature of a user needs to be adjusted according to needs, the temperature of the hair drier in the prior art needs to be adjusted manually frequently according to the perception of the user, the number of times of operation is too many, and the user experience is insufficient. In the embodiment, the mode selection switch 400 is used to replace the temperature control switch in the prior art, so that the number of times that the user presses the switch can be effectively reduced. The mode selection switch 40 can be adjusted in place by operating once, and the user experience can be effectively improved.

The cold air mode selection switch 410 and the high power mode selection switch 420 may be vertically arranged along the extending direction of the handle 40, and 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 below the high power mode selection switch 420. In the case where the distance between the cool air mode selection switch 410 and the high power mode selection switch 420 is 16mm, when the total control switch 2181 is 27mm from the main body 10, the distance from the upper mode selection switch to the main body 10 is 19mm, and the distance from the lower mode selection switch to the main body 10 is 35 mm.

The number of the mode selection switches in this embodiment may also be multiple, and designers in the field may add multiple intelligent selections according to the number of the mode selection switches to meet the requirements of users on multiple hair drying modes, which is not an example in this embodiment.

In addition, as shown in fig. 19, an indicator light may be disposed on the front wall 2100 of the handle 40, and the indicator light may be electrically connected to the controller assembly 130, and may be illuminated in different states when the controller assembly 130 controls the blower to operate in different modes.

Specifically, for example, the indicator light may be displayed in different colors and/or may be illuminated at different intensities, or there may be multiple indicator lights, the more indicator lights that are illuminated may indicate a greater force of wind, and specifically, the indicator light may emit yellow light in a default manner when the hair dryer is activated, green light when the cool mode selection switch 410 of the hair dryer is activated, and red light when the high power mode selection switch 420 of the hair dryer is activated. Meanwhile, the luminous intensity of the indicator light can be changed according to the wind power of the blower, when the indicator light is provided with a plurality of indicator lights, for example, three indicator lights which are vertically arranged are provided, when the wind power of the blower is minimum, only one indicator light can be lighted, when the wind power is middle gear, two indicator lights can be lighted, and when the wind power of the blower is maximum, the three indicator lights can be all lighted.

Further, a battery assembly is disposed within the handle 40 and 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 blower assembly 60, or a power cord 500 of the blower passes through the handle 40 and is connected to the controller assembly 130, and the power cord is connected to an external power source to provide power to the controller assembly 130, the blower assembly 60, and the heating assembly 50.

Application scenario 13

Hold the hair-dryer handle when the user, user's thumb can just be located the one side of first air intake ON the hair-dryer handle, user's thumb perk, directly touch promptly and touch total control switch, will always control the switch and open so that it is in the ON position, hair-dryer work is under acquiescence operating mode, and when the user needs make the hair-dryer blow cold wind, the mode selection switch position that the handle side can directly be touched to the four fingers that the user gripped, press cold wind mode selection switch, hair-dryer work is under the cold wind mode, and the comfort level is improved. When the user needs to dry hair quickly, any one of the user's four fingers can press the high-power mode selection switch, so that the hair drier blows with the hottest wind and the maximum wind power. In the whole operation process, all switches on the handle can be touched in a holding state, and a user does not need to change the holding state to select the switches, so that the user experience is effectively improved.

The user still bothers the loud noise when using the existing hair dryer. The noise of the blower is mainly generated by the fan assembly. When the fan assembly operates, the high-speed rotating mechanical motion and the high-speed airflow generate larger noise and are concentrated in a middle and high frequency range, so that the use comfort is reduced. The inventor thinks that when the current hair dryer product is in operation, the noise generated by the fan in the hair dryer can pass through the gap between the solid part on the hair dryer and the air inlet grid without hindrance, and the grid holes on the air inlet grid are spread to the outside, so that the noise can be spread out from the first air inlet of the hair dryer, and the user can hear the noise, and the use comfort of the user is reduced.

To above-mentioned problem, the application provides following embodiment, can reduce the whole noise of hair-dryer, especially well high frequency noise, does not influence performance and promotes the product quality simultaneously, improves user's use comfort.

Fig. 33 is an exploded view of a blower according to an embodiment of the present application, fig. 34 is a plan view of a front cover according to an embodiment of the present application, and fig. 35 is a perspective view of the front cover according to an embodiment of the present application, as shown in fig. 33 to 35.

In one embodiment of the present application, there is provided a hair dryer having an airflow channel (not shown) including a first inlet 11 and a first outlet 12, the first inlet 11 having an inlet surface through which air enters the airflow channel and exits the first outlet 12. The hair drier comprises an exposed part 700 protruding from an air inlet surface, wherein the exposed part 700 comprises a front cover plate 710 facing the air inlet surface and a rear cover plate 720 back to the air inlet surface, a first silencing hole 711 is arranged on the front cover plate 710, and noise is guided to enter a first silencing cavity formed by the front cover plate 710 and the rear cover plate 720.

The technical scheme that this application embodiment provided, be equipped with first bloop 711 on the front shroud 710, front shroud 710 and back shroud 720 form first bloop, can guide the noise entering first bloop through first bloop 711, first bloop can effectively absorb the noise that the hair-dryer passes the broadcast, especially well high-frequency noise, reach and fall the purpose of making an uproar, with reduce hair-dryer noise entirely, do not influence performance and promote the product quality simultaneously, improve user's use comfort.

For example, in the embodiment of the present application, the hair dryer includes a main body 10, an air flow channel is formed in the main body 10, the exposed part 700 is located on an air inlet side of the air flow channel and protrudes from an air inlet surface, and the exposed part 700 at least partially shields the first air inlet 11, so that noise propagating from the inside to the outside of the main body 10 partially enters the first muffling cavity through the first muffling hole 711. The first silencing cavity can effectively absorb noise, particularly medium-high frequency noise, transmitted to the rear portion of the hair dryer in the main body 10, the purpose of noise reduction can be achieved, the use performance of the hair dryer is not affected, the product quality is improved, and the use comfort of a user is improved.

In the embodiment of the present application, an air inlet manner of the first air inlet 11 is that a gap for air flow is formed between the front cover plate 710 and the air inlet surface, and the air flow enters the air flow channel through the gap. The air current can not directly see through in the air inlet face gets into airflow channel, but gets into the space between front shroud 710 and the air inlet face earlier, then gets into airflow channel, and front shroud 710 at least part shelters from the air inlet face, because front shroud 710 blocks the effect, and the air current can get into airflow channel from the edge of a week of front shroud 710 uniformly, and the air current air inlet route has certain buckling, helps noise reduction like this. The air inlet mode of the first air inlet 11 can reduce the noise and the influence on the gas flow as much as possible. Meanwhile, the front cover plate 710 also avoids the problem that the air inlet surface is exposed outside, so that the hair dryer is more attractive in appearance.

Referring to fig. 33 to 35, in the embodiment of the present application, the front cover 710 may be implemented in a manner that the first muffling holes 711 are formed in a plurality, and the plurality of first muffling holes 711 are uniformly distributed around the central portion of the front cover 710. The front cover plate 710 is connected to the rear cover plate 720 and forms a first muffling chamber that communicates with the outside through a first muffling hole 711. Noise can be introduced into the first sound-deadening chamber through the first sound-deadening hole 711, and sound can be primarily muffled by the structure of the first sound-deadening hole 711. The first muffling hole 711 has a small size and has an inhibiting effect on middle and high frequency sound waves, when noise passes through the first muffling hole 711, particularly when middle and high frequency noise passes through the first muffling hole 711, the first muffling hole 711 applies a certain muffling resistance to the sound waves, sound energy of the middle and high frequency noise is rubbed in the hole of the first muffling hole 711 and converted into heat energy to be dissipated, and the sound waves passing through the first muffling hole 711 are attenuated. Meanwhile, since the first muffling hole 711 has a small size, noise entering the first muffling cavity is not easily re-propagated from the first muffling hole 711, and medium and high frequency sound waves contained in the noise can be effectively suppressed. In addition, the first muffling hole 711 can also effectively reduce noise generated due to helmholtz resonance.

In the embodiment of the present application, the first muffling holes 711 are disposed in such a manner that a plurality of first muffling holes 711 are uniformly distributed around the central portion of the front cover 710. It is also possible that the first muffling holes 711 are irregularly arranged around the center portion of the front cover 710, and when the sound wave passes through the first muffling holes 711, each of the first muffling holes 711 can individually apply muffling resistance, that is, each of the first muffling holes 711 can individually perform a noise suppressing function, and cooperate with the plurality of first muffling holes 711 to suppress noise. Further, the axis of the first muffling hole 711 is parallel to the axis of the main body 10, so that noise can be smoothly guided into the first muffling chamber through the first muffling hole 711.

Further, referring to fig. 36, in an implementable embodiment of the present application, the first air inlet 11 is provided with an air inlet grid 600, a plurality of air permeable holes 64 are uniformly distributed around a central portion of the air inlet grid 600, and each air permeable hole 64 corresponds to at least one first muffling hole 711. The ventilation holes 64 of the air inlet grill 600 are used to supply air and isolate large foreign objects, and noise inside the blower may be transmitted to the outside through the ventilation holes 64. The first muffling hole 711 is disposed corresponding to the ventilation hole 67, so that on one hand, after the noise is transmitted from the ventilation hole 91, the noise can smoothly enter the first muffling cavity through the first muffling hole 711. On the other hand, the purpose of preliminary noise reduction is achieved by the structure of the first noise reduction hole 711.

In the embodiment of the present application, the arrangement of the first muffling holes 711 may be matched with the shape of the ventilation holes 64, for example, as shown in fig. 36, one way to achieve this is that the ventilation holes 64 are arc-shaped holes extending from the central portion of the air inlet grille 600 to the edge of the air inlet grille 600 along an arc. Each ventilation hole 64 corresponds to a plurality of first muffling holes 711, and the plurality of first muffling holes 711 corresponding to the same ventilation hole 64 are sequentially arranged along an arc line of the ventilation hole 64. Ventilative hole 64 is the arc hole, can guarantee the smooth and easy of air current to pass through on the one hand, and on the other hand can have certain hindrance effect to the noise, and the noise can not directly see through air inlet grid 600, and the propagation path of sound wave has certain buckling, helps noise abatement like this. The plurality of first muffling holes 711 are sequentially arranged along the ventilation hole 64 so as to ensure that each first muffling hole 711 can correspond to the ventilation hole 64, and the first muffling holes 711 are arranged corresponding to the ventilation hole 64, so that on one hand, after the noise is transmitted from the ventilation hole 64, the noise can be smoothly transmitted through the first muffling holes 711 into the first muffling cavities. On the other hand, the purpose of preliminary noise reduction is achieved by the structure of the first noise reduction hole 711.

In order to further enhance the noise reduction effect of the front cover plate 710, in the embodiment of the present application, a silencing groove 712 is disposed on a surface of the front cover plate 710 facing the air inlet grille 600 corresponding to each of the positions of the air permeable holes 64, and at least one first silencing hole 711 is disposed in each silencing groove 712. The sound attenuation groove 712 can further reduce the sound waves, when the sound waves are transmitted into the sound attenuation groove 712, a part of sound energy is rubbed in the reflection and diffraction processes through the continuous reflection, diffraction and other actions of the inner wall of the sound attenuation groove 712, and is converted into heat energy to be dissipated, so that the sound waves passing through the front cover plate 710 are attenuated. Meanwhile, the hole depth of the first muffling hole 711 can be changed by the muffling groove 712, thereby changing the frequency of noise reduction.

In the embodiment of the present application, noise generated by the fan assembly 60 of the blower is to be reduced, and in order to perform targeted noise reduction on the noise generated by the fan assembly 60, an implementation manner is to determine a noise reduction main frequency band by setting parameters such as an aperture and a hole depth corresponding to the first muffling hole 711 and an aperture ratio of the front cover 710. When setting parameters such as the aperture, the hole depth, and the aperture ratio of the front cover 710, the actual measurement result of the noise generated by the fan assembly 60 can be set according to the actual use of the blower. Alternatively, the same model of fan assembly 60 may employ the same set-up parameters. In the embodiment of the present application, the hole diameter of the first muffling hole 711 ranges from 1.0 mm to 1.5 mm; the depth of the first muffling hole 711 is 1.0-2.0 mm; the aperture ratio of the first muffling hole 711 in the front cover 710 ranges from 5% to 15%.

It should be noted that the above-mentioned parameters such as the aperture, the hole depth, and the aperture ratio of the front cover plate 710 are only illustrative, and those skilled in the art can set the parameters according to different noise reduction requirements, and the embodiments of the present application are not specifically limited, and at the same time, this does not constitute an improper limitation of the embodiments of the present application.

With continued reference to fig. 33, in order to further improve the noise reduction effect of the exposed component 700, in an achievable embodiment of the present application, noise reduction cotton 730 is further disposed in the first noise reduction cavity, and the noise reduction cotton 730 covers the plurality of first noise reduction holes 711. The silencing cotton 730 has a microporous structure, and sound energy is converted into heat energy by friction in pores of the silencing cotton and dissipated through the microporous structure, so that sound waves passing through the front cover plate 710 are weakened. The silencing cotton 730 is located between the front cover plate 710 and the rear cover plate 720, when the front cover plate 710 is connected with the rear cover plate 720, a clamping structure is formed, the silencing cotton 730 is fixed through the clamping structure, and the silencing cotton 730 can cover the first silencing holes 711 after being fixed. The sound attenuation cotton 730 can absorb the sound wave energy in the noise, so as to avoid the sound wave in the noise from generating resonance, and meanwhile, the sound attenuation cotton 730 can also convert the sound energy into heat energy, thereby achieving the purpose of sound attenuation. The silencing cotton 730 cooperates with the first silencing hole 711 to reduce the overall noise of the hair dryer.

Further, referring to fig. 34, 35 and 37, in the present embodiment, the exposed part 700 is connected in such a manner that the front cover plate 710 has a connecting hole 713 and a positioning groove 714 at a central portion thereof. A connecting column 721 and a positioning column 722 are disposed on one side of the rear cover plate 720 facing the front cover plate 710, the connecting column 721 is connected to the air inlet grid 600 through the connecting hole 713, and the positioning column 722 is connected to the positioning slot 714. The connection column 721 and the air inlet grid 600 can be connected by various connection methods, such as screw connection, clamping connection, magnetic connection, and the like. When the connection column 721 is connected to the air inlet grill 60, a screw, a clip or a magnetic connector passes through the connection hole 713 of the front cover 710 to complete the connection between the connection column 721 and the air inlet grill 600. The positioning post 722 and the positioning slot 714 can be connected by various connection methods, such as screw connection, snap connection, magnetic connection, and the like.

Further, referring to fig. 37 and 38, in order to better reduce noise, in an embodiment of the present application, a plurality of second muffling holes 66 are formed in a central portion of the air inlet grille 600, and the plurality of second muffling holes 66 and the front cover plate 710 form a second muffling cavity. The plurality of ventilation holes 64 are distributed around a plurality of second muffling holes 66. A plurality of second bloop 66 can distribute at the central part of air inlet grid 600 according to the predetermined mode of arranging, and second bloop 66 can be used to the air inlet and the amortization, under the condition that does not influence air inlet grid 600 air inlet, can get into second bloop through second bloop 66 with the noise guide, can tentatively realize the amortization through the structure of second bloop 66. The second muffling hole 66 has a small size, and has an inhibiting effect on medium-high frequency sound waves contained in noise, when the noise passes through the second muffling hole 66, particularly when the medium-high frequency noise passes through the second muffling hole 66, the second muffling hole 66 applies a certain muffling resistance to the sound waves, and sound energy of the medium-high frequency noise is converted into heat energy by friction in the pores of the second muffling hole 66 to be dissipated, so that the sound waves passing through the second muffling hole 66 are attenuated. Meanwhile, because the second muffling hole 66 is small in size, noise entering the second muffling cavity is not easy to propagate out of the second muffling hole 66 again, and medium-high frequency sound waves contained in the noise can be effectively suppressed. The noise that broadcasts from the hair-dryer in, some noise is fallen and is fallen through second silencing hole 66 and second amortization chamber and fall through first silencing hole 711 and first amortization chamber still some noise, and the noise that dual amortization makeed most of broadcasts from the hair-dryer in is absorbed and is consumed to reduce the whole noise of hair-dryer.

In the embodiment of the present application, the second muffling holes 66 are disposed in a predetermined arrangement, except that the plurality of second muffling holes 66 may be distributed in the central portion of the air inlet grille 600. The second muffling holes 66 may be randomly arranged in the center of the air intake grille 600, and when the sound waves pass through the second muffling holes 66, each second muffling hole 66 can individually apply muffling resistance, that is, each second muffling hole 66 can individually play a role in suppressing noise, and combines a plurality of second muffling holes 66 to jointly function to suppress noise.

In the embodiment of the present application, noise generated by the blower assembly 60 of the blower is to be reduced, and in order to perform targeted noise reduction on the noise generated by the blower assembly 60, an implementation manner is to determine a noise reduction main frequency band by setting parameters such as an aperture and a hole depth corresponding to the second muffling hole 66 and an aperture ratio of the air inlet grid 600, where the aperture ratio refers to the aperture ratio of the second muffling hole 66. When setting up parameters such as aperture, hole depth and the aperture ratio of air inlet grid 600, can set up according to the actual measurement result of the noise that blower subassembly 60 produced when the hair-dryer actually uses. Alternatively, the same model of fan assembly 60 may employ the same set-up parameters. In the embodiment of the present application, the hole diameter of the second muffling hole 66 ranges from 1.0 mm to 1.5 mm; the hole depth range of the second muffling hole 66 is 1.0-2.0 mm; the range of the aperture ratio of the second muffling hole 66 on the air inlet grid 600 is 5% -15%.

It should be noted that the above parameters such as the aperture, the aperture depth, and the aperture ratio of the air inlet grille 600 are only illustrative, and those skilled in the art can set the parameters according to different noise reduction requirements, and the embodiment of the present application is not particularly limited, and at the same time, this does not constitute an improper limitation of the embodiment of the present application.

Application scenario 14

When the hair drier works, external airflow enters the airflow channel through the gap between the front cover plate and the air inlet surface, and the airflow cannot directly enter the airflow channel through the air inlet surface but enters the airflow channel from the edge of the periphery of the front cover plate, so that the airflow air inlet path is bent to a certain degree, and noise reduction is facilitated.

Simultaneously, the noise that the hair-dryer propagated to the rear portion, the part is passed through first bloop guide and is got into and form first bloop by front shroud and back shroud, and first bloop can tentatively fall the noise and make an uproar, and first bloop can effectively absorb the noise that the hair-dryer passed in, especially medium and high frequency noise to reduce hair-dryer whole noise, reach the purpose of making an uproar of falling, do not influence performance and promote the product quality simultaneously, improve user's comfort level. After the first silencing hole and the first silencing cavity are arranged, the sound power of the whole blower is reduced by more than 0.4dB, and the sound pressure level of the rear part is reduced by more than 1.5 dB.

Application scenario 15

Meanwhile, the noise propagated to the rear part of the blower is partially guided to enter a first silencing cavity formed by the front cover plate and the rear cover plate through the first silencing hole, and silencing cotton is arranged in the silencing cavity. The noise can be fallen preliminarily to first amortization hole, and first amortization chamber is further absorbed the noise through the amortization cotton. The noise elimination cotton is of a microporous structure, sound energy is converted into heat energy through friction in the pores of the noise elimination cotton and dissipated, and sound waves passing through the front cover plate are weakened, so that the purpose of noise reduction is achieved. The first silencing cavity can effectively absorb noise, particularly medium-high frequency noise, propagated in the hair drier, so that the overall noise of the hair drier is reduced, the use performance is not influenced, the product quality is improved, and the use comfort of a user is improved.

Application scenario 16

Meanwhile, noise is transmitted to the rear part by the blower, partial noise is reduced through the second silencing hole and the second silencing cavity, the second silencing hole is small in size and has an inhibiting effect on medium-high frequency sound waves contained in the noise, when the noise passes through the second silencing hole, particularly when the medium-high frequency noise passes through the second silencing hole, the second silencing hole exerts certain silencing resistance on the sound waves, sound energy of the medium-high frequency noise is rubbed in holes of the second silencing hole and converted into heat energy to be dissipated, and the sound waves passing through the second silencing hole are weakened.

And part of noise is guided to enter a first silencing cavity formed by the front cover plate and the rear cover plate through the first silencing hole, and silencing cotton is arranged in the silencing cavity. The first muffling hole can preliminarily reduce noise, the size of the first muffling hole is small, the middle and high frequency sound waves have an inhibiting effect, certain muffling resistance can be applied to the sound waves by the first muffling hole when the noise passes through the first muffling hole, particularly when the middle and high frequency noise passes through the first muffling hole, sound energy of the middle and high frequency noise is rubbed in the hole of the first muffling hole and is converted into heat energy to be dissipated, and the sound waves passing through the first muffling hole are weakened. The first silencing cavity further reduces noise through silencing cotton.

The second silencing hole and the second silencing cavity are combined with the first silencing hole and the first silencing cavity to form double silencing, so that most of noise transmitted from the blower is absorbed and consumed, and the overall noise of the blower is reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A hair dryer, comprising:

the end part of the main body is provided with a first air inlet;

2. The hair dryer of claim 1, wherein the indicator assembly is an annular structure through which the air flow entering through the first air inlet may pass.

3. The blower of claim 1, wherein an outer surface of the indicating assembly is flush with an outer surface of the body.

4. The hair dryer of claim 3, wherein the outer surface of the indicator assembly comprises at least two light emitting surfaces, wherein at least one of the light emitting surfaces extends in a direction normal to the first air inlet, and at least one of the light emitting surfaces extends in a circumferential direction around the body.

5. The hair dryer of claim 2, wherein the indicating assembly comprises a lamp panel and a light guide body, and the lamp panel and the light guide body are both of annular structures;

6. The hair dryer of claim 5, wherein a periphery of one end of the light guide body located at the outer surface of the main body is covered with a decorative cover.

7. The blower of claim 5, wherein the lamp panel is provided with a plurality of lamp beads on one side facing the light guide body, and the plurality of lamp beads are annularly distributed on the lamp panel;

8. The hair dryer of claim 7, wherein said recess is hemispherical in configuration.

9. The hair dryer of claim 7, wherein the abutting portion and/or the light guide portion are provided with a plurality of first clamping portions, and a plurality of second clamping portions are arranged in the accommodating cavity corresponding to the first clamping portions;

10. The hair dryer of claim 7, wherein a part of surfaces of the abutting portion and the light guide portion are covered with a light shielding layer.