CN114991053A

CN114991053A - Hair drier

Info

Publication number: CN114991053A
Application number: CN202210840166.9A
Authority: CN
Inventors: 汤亚斌; 上官云杰
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-09-02

Abstract

The invention belongs to the field of gardening tools, and particularly relates to a blower, which comprises: an air duct; the motor is arranged in the air duct and is coaxial with the air duct, the power P of the motor is more than or equal to 1500W, and the maximum rotating speed n is more than or equal to 30000 RPM; the fan blades are positioned in the air duct and connected with the main shaft of the motor, the diameter d of each fan blade is more than or equal to 84mm, and the density rho of each fan blade is less than or equal to 2.8g/cm ³ Is made of the metal material of (1). The fan blade is made of the low-density metal material, so that the stability of the fan blade can be effectively improved, the working noise is reduced, the service life of the fan blade is prolonged, the prejudice of the prior art is overcome, and the working performance of the hair dryer is improved in a breakthrough manner.

Description

Hair drier

Technical Field

The invention belongs to the field of garden tools, and particularly relates to a blower.

Background

The blower is used as a garden tool and can quickly clean fallen leaves and gravels on the ground. However, current conventional blowers generally have a lower performance, far below that of gasoline blowers; if improve hair-dryer rotational speed, then can lead to the noise too big, influence operator's physical and mental health, in addition, the fan blade and the duct of current hair-dryer generally are the plastics material, and high rotational speed can lead to the stability of these structures to reduce, influences hair-dryer life.

Disclosure of Invention

In view of the above-described drawbacks of the prior art, an object of the present invention is to provide a blower capable of improving the blowing performance while ensuring stability.

To achieve the above and other related objects, the present invention provides a hair dryer, comprising:

an air duct;

the motor is arranged in the air duct and is coaxial with the air duct, the power P of the motor is more than or equal to 1500W, and the maximum rotating speed n is more than or equal to 30000 RPM;

the fan blades are positioned in the air duct and connected with the main shaft of the motor, the diameter d of each fan blade is more than or equal to 84mm, and the density rho of each fan blade is less than or equal to 2.8g/cm ³ Is made of the metal material of (1).

In an optional embodiment of the invention, the duct includes an outer tube and an inner tube, the inner tube is located in the center of the outer tube and is spaced from the inner wall of the outer tube, the outer tube and the inner tube are connected through a web, the motor is installed in the inner tube, the web is provided with a plurality of webs, the plurality of webs are spaced along the circumferential direction of the inner tube, and the plate surface of the web is inclined relative to the axis of the inner tube, so that the air flow can be deflected in the circumferential direction when passing through the web.

In an optional embodiment of the present invention, an end plate is disposed at one end of the inner tube close to the fan blade, the end plate is provided with an air inlet, a diversion cone is disposed at one end of the inner tube far from the fan blade, an air outlet is disposed at a tail portion of the diversion cone, and a heat dissipation channel communicating the air inlet and the air outlet is disposed between the motor and the inner tube.

In an optional embodiment of the present invention, the guide cone is detachably connected to the inner tube, and a quick connection mechanism is disposed between the guide cone and the inner tube, the quick connection mechanism includes an insertion block fixedly connected to the guide cone, the insertion block is arranged to overhang along a circumferential direction of the guide cone, a wall of the inner tube is provided with an insertion hole matched with the insertion block, one end of the insertion hole is provided with a sinking groove formed in an outer wall of the inner tube, and the other end of the insertion hole is provided with a stopper arranged to overhang into the insertion hole along the circumferential direction of the inner tube.

In an optional embodiment of the present invention, the fan blade is made of magnesium alloy or aluminum alloy.

In an optional embodiment of the present invention, the motor power P is 1500W, and the blade diameter d is 84 mm.

In an alternative embodiment of the present invention, the motor power P is 2000W, and the fan blade diameter d is 96 mm.

In an optional embodiment of the present invention, an inner wall of the air duct is provided with a sound insulation layer.

In an optional embodiment of the present invention, the air duct comprises, in sequential arrangement:

an air inlet pipe;

the duct is connected with the air inlet pipe, and the motor is arranged in the duct;

the blowing head assembly is connected with the duct;

the puigging is including setting up at least in the first puigging of inlet duct inner wall.

In an optional embodiment of the invention, the duct is connected with the blowing head assembly through a corrugated pipe; the soundproof layer also comprises a second soundproof layer arranged on the inner wall of the corrugated pipe

In an optional embodiment of the present invention, the first sound insulation layer is a cone-shaped structure, an outer wall of the first sound insulation layer is provided with a back adhesive, and the first sound insulation layer is adhered and fixed to an inner wall of the air inlet pipe through the back adhesive.

In an optional embodiment of the present invention, the second sound-insulating layer has a tubular structure, and the outer wall of the second sound-insulating layer is provided with protrusions distributed in a corrugated manner, and the protrusions are embedded in the valleys of the inner wall of the corrugated pipe.

In an optional embodiment of the present invention, a casing is disposed outside the air inlet pipe and the duct, a handle portion is formed on the casing, a switch assembly is disposed on the handle portion, a control module is disposed in the casing, and the switch assembly and the motor are electrically connected to the control module.

In an optional embodiment of the present invention, a battery pack compartment is formed on the housing, a battery pack is installed in the battery pack compartment, and the battery pack is electrically connected to the control module.

In an optional embodiment of the present invention, the battery pack bin is located at a tail end of the air inlet pipe, and air inlets are disposed on a side wall and a bottom wall of the casing between the battery pack bin and the air inlet pipe.

In an optional embodiment of the present invention, a casing is disposed outside the air inlet pipe and the duct, a control module is disposed in the casing, a handle portion is disposed outside the blowing head assembly, a switch assembly is disposed on the handle portion, and the switch assembly and the motor are electrically connected to the control module.

In an optional embodiment of the invention, the air duct further comprises a backpack battery pack, the air duct is movably connected with the backpack battery pack, and the control module is electrically connected with the backpack battery pack.

In an optional embodiment of the invention, a buffer washer is respectively arranged between the duct and the blowing head assembly.

The invention has the technical effects that:

the fan blade is made of the low-density metal material, so that the stability of the fan blade can be effectively improved, the working noise is reduced, the service life of the fan blade is prolonged, the prejudice of the prior art is overcome, and the working performance of the hair dryer is improved in a breakthrough manner.

The invention adopts the low-density metal alloy as the fan blade, improves the structural strength of the fan blade, realizes the light weight of the fan blade, reduces the energy loss and further improves the working efficiency.

The sound insulation layer can further reduce the working noise of the hair dryer and improve the working environment of operators.

According to the invention, the buffer gasket can be arranged between the duct and the blowing head assembly, so that vibration can be inhibited from being conducted to the blowing head assembly from the duct, resonance of the blowing head assembly is avoided, noise is reduced, and meanwhile, the stability of the air channel structure is improved, so that the service life of the hair drier is further prolonged.

The radials can guide the air current, makes the air current be the heliciform behind the radials and flows downstream, can avoid the air current to produce the sinuous flow through mutual interference behind the radials like this, promotes the trafficability characteristic of air current, has further reduced the noise in the wind channel simultaneously.

The air flow generated by the fan blades can pass through the inner pipe and then exchanges heat with the motor in the inner pipe, so that heat generated by the motor during working is taken away, the motor is automatically cooled, and the service life of the motor can be effectively prolonged.

Drawings

FIG. 1 is a schematic perspective view of a hand held hair dryer according to an embodiment of the present invention;

figure 2 is a cross-sectional view of a hand held hair dryer provided by an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a backpack blower according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a backpack blower provided by an embodiment of the present invention;

figure 5 is an exploded view of the air inlet duct of a hair dryer provided in accordance with an embodiment of the present invention;

FIG. 6 is an exploded view of a bellows provided by an embodiment of the present invention;

figure 7 is a cross-sectional view of a stent and its attachments provided by embodiments of the invention;

figure 8 is an exploded view of the duct and its accessories provided by the embodiment of the present invention;

figure 9 is a perspective view of a duct provided by an embodiment of the present invention;

FIG. 10 is a sectional view A-A of FIG. 7;

fig. 11 is a perspective view of a guide cone provided by an embodiment of the present invention;

fig. 12 is an enlarged partial view I of fig. 8.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

Referring to fig. 1-6, the present invention will be described in detail with reference to two embodiments of a hand-held hair dryer and a backpack hair dryer. It will be understood that the present invention relates to improvements in the air duct and power components of hair dryers, and that the particular form of the other components of the hair dryer are not particularly limited, and therefore does not exclude the possibility of using the air duct and power components of the present invention with other types of hair dryers not mentioned in the present invention, and such hair dryers incorporating the air duct and power components of the present invention are within the scope of the invention as claimed.

Example 1

Referring to fig. 1 and 2, a hand-held hair dryer includes an air duct 10, a motor 20 and a fan blade 30, it can be understood that the hair dryer of the present invention is an axial flow hair dryer, the motor 20 and the fan blade 30 are coaxially disposed with the air duct 10, a sweeping area of the fan blade 30 covers a large area of the air duct 10, and a space is reserved between the motor 20 and an inner wall of the air duct 10 to allow air to pass through, for example, a guide cone may be additionally installed at a rear end of the motor 20 to prevent turbulence from being generated at the rear end of the motor 20.

It can be understood that the air duct 10 of the present invention is a functional feature, and mainly refers to a semi-closed space with a certain length, which is circumferentially closed and has two open ends, and there is no particular limitation on what kind of structure the air duct 10 is formed, for example, the air duct 10 may be a tubular object with one continuous end, or may be formed by splicing multiple sections of tubular objects along the axial direction, or may be formed by splicing more than two arc-shaped shells along the circumferential direction.

In the invention, the power P of the motor 20 is more than or equal to 1500W, and the maximum rotating speed n is more than or equal to 30000 RPM; the fan blade 30 and the motor20, the diameter d of the fan blade 30 is more than or equal to 84mm, and the density rho of the fan blade 30 is less than or equal to 2.8g/cm ³ Is made of the metal material of (1).

It can be understood that the parameters of the diameter of the fan blade 30, the power of the motor 20, the maximum rotating speed of the motor 20 and the like in the invention are all larger than the parameters of the traditional blower, and larger blowing force can be generated to adapt to the use requirements under complex working conditions.

It should be noted that the improvement of the power component of the present invention is not only reflected in the change of parameters, but actually, on the premise of not changing the existing design, simply changing the parameters of the power component will result in a series of derivative problems, for example, simply increasing the above parameters will increase the load of the fan blade 30, while the fan blade 30 in the prior art is generally made of plastic, so that the vibration of the fan blade 30 will be aggravated, which will increase the noise on one hand, and reduce the service life of the fan blade 30 on the other hand. In order to overcome the problems, the fan blade 30 is made of the low-density metal material, so that the stability of the fan blade 30 can be effectively improved, the working noise is reduced, and the service life of the fan blade 30 is prolonged.

Referring to fig. 9, in a specific embodiment, the duct 12 includes an outer tube 121 and an inner tube 122, the inner tube 122 is located at the center of the outer tube 121 and is spaced apart from the inner wall of the outer tube 121, the outer tube 121 and the inner tube 122 are connected by a web 125, the motor 20 is installed in the inner tube 122, the web 125 is provided in plural, the web 125 is spaced apart in the circumferential direction of the inner tube 122, and the plate surface of the web 125 is inclined with respect to the axis of the inner tube 122, so that the airflow can be deflected in the circumferential direction when passing through the web 125. It can be understood that, when the airflow passes through the web plate 125, the airflow is inevitably blocked and cut by the web plate 125, in this embodiment, the web plate 125 can guide the airflow, so that the airflow passes through the web plate 125 and then flows in a spiral shape to the downstream, which can avoid the occurrence of turbulence caused by mutual interference of the airflow after passing through the web plate 125, improve the air flow passing ability, and further reduce the noise in the air duct 10.

Referring to fig. 7 and 9, in an embodiment, an end plate 1223 is disposed at an end of the inner tube 122 close to the fan blade 30, an air inlet hole 1221 is disposed on the end plate 1223, a diversion cone 123 is disposed at an end of the inner tube 122 far from the fan blade 30, an air outlet hole 1231 is disposed at a tail of the diversion cone 123, and a heat dissipation channel 1222 communicating the air inlet hole 1221 and the air outlet hole 1231 is disposed between the motor 20 and the inner tube 122. It can be understood that, in this embodiment, the airflow generated by the fan blade 30 can pass through the inner tube 122 and then exchange heat with the motor 20 in the inner tube 122, so as to take away heat generated by the operation of the motor 20, thereby realizing automatic cooling of the motor 20 and effectively prolonging the service life of the motor 20.

Referring to fig. 7-12, the guide cone 123 is detachably connected to the inner tube 122, a quick-connection mechanism is disposed between the guide cone 123 and the inner tube 122, the quick-connection mechanism includes an insertion block 1232 fixedly connected to the guide cone 123, the insertion block 1232 is arranged to overhang along the circumferential direction of the guide cone 123, an insertion hole 1224 matched with the insertion block 1232 is disposed on the tube wall of the inner tube 122, a sinking groove 1225 formed on the outer wall of the inner tube 122 is disposed at one end of the insertion hole 1224, and a stopper 1226 arranged to overhang into the insertion hole 1224 along the circumferential direction of the inner tube 122 is disposed at the other end of the insertion hole 1224. It can be understood that the guiding cone 123 is detachably connected with the inner tube 122, which is convenient for mounting and dismounting the motor 20, and meanwhile, the quick connection device is arranged between the guiding cone 123 and the inner tube 122 in the embodiment, which can realize quick mounting and dismounting of the guiding cone 123 and the inner tube 122; during the installation, at first utilize external force to make the inserted block 1232 shrink along radial inside, then insert the inserted block 1232 in the inner tube 122, rotate the guiding cone 123 again, this in-process dog 1226 can produce elastic deformation along radial outside, after the guiding cone 123 rotates certain angle, the inserted block 1232 is blocked in under the effect of self elasticity in the heavy groove 1225, dog 1226 just staggers with the inserted block 1232 this moment, dog 1226 resets under the effect of self elasticity, and then supports the tip that leans on in the inserted block 1232, prevents the reversal of guiding cone 123. In this embodiment, in order to facilitate inserting the guiding cone 123 into the inner tube 122, the guiding cone 123 is further provided with a positioning plate 1233, and when the guiding cone 123 is assembled with the inner tube 122, the positioning plate 1233 is attached to the inner wall of the inner tube 122. In order to further improve the stability between the guide cone 123 and the inner pipe 122, a rubber ring 124 may be further disposed between the guide cone 123 and the inner pipe 122.

In a specific embodiment, the fan blade 30 may be made of magnesium alloy or aluminum alloy, for example, and the density of the magnesium alloy is generally 1.8g/cm ³ About, the density of the aluminum alloy is generally 2.7g/cm ³ On the left and right, it can be understood that the invention adopts the low-density metal alloy as the fan blade 30, and realizes the light weight design of the fan blade 30 and reduces the energy loss while improving the structural strength of the fan blade 30, thereby further improving the working efficiency.

The invention preferably selects the following two groups of parameters, and the hair dryer can realize better energy conversion rate under the condition of measuring the following two groups of parameters through experiments.

Firstly, when the power P of the motor 20 is 1500W, the diameter d of the fan blade 30 is 84 mm.

Secondly, when the power P of the motor 20 is 2000W, the diameter d of the fan blade 30 is 96 mm.

The data for the two sets of parameters compared to the other reference examples are as follows:

it can be seen from the above table that the operating efficiency of the hair dryer is significantly higher under the two sets of preferred parameters than under the other parameters.

Referring to fig. 2, in a further embodiment of the present invention, the inner wall of the air duct 10 is provided with a sound insulation layer, and it can be understood that the sound insulation layer can further reduce the working noise of the hair dryer and improve the working environment of the operator, and the sound insulation layer can be, for example, sound insulation cotton.

Referring to fig. 2, the air duct 10 includes an air inlet pipe 11, a duct 12 and a blowing head assembly 13 arranged in sequence; specifically, the duct 12 is connected to the air inlet pipe 11, and the motor 20 is installed in the duct 12; the blowing head assembly 13 is connected with the duct 12; the soundproof layer at least includes a first soundproof layer 111 provided on an inner wall of the air inlet duct 11.

It can be understood that, the air duct 10 is provided with the multi-section structure, which is also helpful for alleviating vibration and noise, the motor 20 and the fan blade 30 of the present invention are only present in the duct 12, which is convenient for isolating vibration generated by the motor 20 and the fan blade 30, for example, buffer washers can be provided between the duct 12 and the air inlet pipe 11 and between the duct 12 and the blowing head assembly 13, it can be understood that the overhang distance of the blowing head assembly 13 is longer, and the buffer washers provided between the duct 12 and the blowing head assembly 13 of the present invention can inhibit vibration from being transmitted to the blowing head assembly 13 from the duct 12, thereby avoiding resonance generated by the blowing head assembly 13, and improving structural stability of the air duct 10 while reducing noise, and further improving service life of the hair dryer.

Referring to fig. 2, a casing 40 is disposed outside the air inlet duct 11 and the duct 12, a handle portion 41 is formed on the casing 40, a switch assembly 42 is disposed on the handle portion 41, a control module 50 is disposed in the casing 40, and the switch assembly 42 and the motor 20 are electrically connected to the control module 50; a battery pack compartment 43 is formed on the housing case 40, a battery pack (not shown) is installed in the battery pack compartment 43, and the battery pack is electrically connected with the control module 50; the battery pack bin 43 is located at the tail end of the air inlet pipe 11, and air inlets 44 are formed in the side wall and the bottom wall of the casing 40 between the battery pack bin 43 and the air inlet pipe 11. It will be appreciated that to further mitigate noise and vibration, a cushion may be provided between the duct 12 and the enclosure 40, for example.

Example 2

Referring to fig. 3-6, a backpack blower includes an air duct 10, a motor 20, a fan blade 30, and a backpack battery pack 60; it will be appreciated that in this embodiment, the power components of the piggyback blower may be configured with the same parameters as described in embodiment 1 above.

The present embodiment differs from the above embodiment 1 in the structure of the air duct 10, and in the present embodiment, the air duct 10 includes an air inlet pipe 11, a duct 12, a bellows 14 and a blowing head assembly 13 which are arranged in sequence. Specifically, the duct 12 is connected to the air inlet pipe 11, and the motor 20 is installed in the duct 12; the duct 12 is connected with the blowing head assembly 13 through a corrugated pipe 14; the soundproof layers include a first soundproof layer 111 provided in the air inlet duct 11, and a second soundproof layer 141 provided on an inner wall of the corrugated tube 14. The air duct 10 is movably connected with the backpack battery pack 60, and the motor 20 is electrically connected with the backpack battery pack 60.

It will be appreciated that in this embodiment the relative movement between the air inlet duct 11 and the backpack battery pack 60 is limited and therefore in order to allow the blowing direction of the blowing head assembly 13 to be freely adjusted, a flexible bellows 14 is provided in this embodiment between the blowing head assembly 13 and the air inlet duct 11 and duct 12.

Referring to fig. 5, in a specific embodiment, the first sound insulation layer 111 is a cone-shaped structure, an adhesive 112 is disposed on an outer wall of the first sound insulation layer 111, and the first sound insulation layer 111 is adhered and fixed to an inner wall of the air inlet duct 11 through the adhesive 112.

Referring to fig. 6, the second sound-insulating layer 141 is a tubular structure, and the outer wall of the second sound-insulating layer 141 is provided with protrusions distributed in a corrugated manner, and the protrusions are embedded in the wave troughs of the inner wall of the corrugated pipe 14.

Referring to fig. 4, a casing 40 is disposed outside the air inlet duct 11 and the duct 12, a control module 50 is disposed in the casing 40, a handle portion 41 is disposed outside the blowing head assembly 13, a switch assembly 42 is disposed on the handle portion 41, and the switch assembly 42 and the motor 20 are electrically connected to the control module 50.

In conclusion, the fan blade 30 is made of the low-density metal material, so that the stability of the fan blade 30 can be effectively improved, the working noise is reduced, and the service life of the fan blade 30 is prolonged, therefore, the prejudice of the prior art is overcome, and the working performance of the hair dryer is improved in a breakthrough manner; according to the invention, the low-density metal alloy is adopted as the fan blade 30, so that the structural strength of the fan blade 30 is improved, meanwhile, the light weight of the fan blade 30 is realized, and the energy loss is reduced, thereby further improving the working efficiency; the sound insulation layer can further reduce the working noise of the blower and improve the working environment of an operator; according to the invention, the buffer gasket can be arranged between the duct 12 and the blowing head assembly 13, so that vibration can be inhibited from being conducted from the duct 12 to the blowing head assembly 13, resonance of the blowing head assembly 13 is avoided, noise is reduced, and meanwhile, the structural stability of the air duct 10 is improved, so that the service life of the hair dryer is further prolonged; the radial plate 125 can guide the airflow, so that the airflow flows downstream in a spiral shape after passing through the radial plate 125, thereby avoiding the generation of turbulent flow due to mutual interference of the airflow after passing through the radial plate 125, improving the passability of the airflow, and further reducing the noise in the air duct 10; the air flow generated by the fan blade 30 can pass through the inner tube 122 and then exchange heat with the motor 20 in the inner tube 122, so as to take away heat generated by the operation of the motor 20, thereby realizing the automatic cooling of the motor 20 and effectively prolonging the service life of the motor 20.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of embodiments of the invention.

Reference throughout this specification to "one embodiment," "an embodiment," or "a specific embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment, and not necessarily in all embodiments, of the present invention. Thus, appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics of any specific embodiment of the present invention may be combined in any suitable manner with one or more other embodiments. It is to be understood that other variations and modifications of the embodiments of the invention described and illustrated herein are possible in light of the teachings herein and are to be considered as part of the spirit and scope of the present invention.

It will also be appreciated that one or more of the elements shown in the figures can also be implemented in a more separated or integrated manner, or even removed for inoperability in some circumstances or provided for usefulness in accordance with a particular application.

Additionally, any reference arrows in the drawings/figures should be considered only as exemplary, and not limiting, unless otherwise expressly specified. Further, as used herein, the term "or" is generally intended to mean "and/or" unless otherwise indicated. Combinations of components or steps will also be considered as being noted where terminology is foreseen as rendering the ability to separate or combine is unclear.

As used in the description herein and throughout the claims that follow, "a," "an," and "the" include plural references unless otherwise indicated. Also, as used in the description herein and throughout the claims that follow, the meaning of "in …" includes "in …" and "on …" unless otherwise indicated.

The above description of illustrated embodiments of the invention, including what is described in the abstract, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of, and examples for, the invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention, as those skilled in the relevant art will recognize and appreciate. As indicated, these modifications may be made to the present invention in light of the foregoing description of illustrated embodiments of the present invention and are to be included within the spirit and scope of the present invention.

The systems and methods have been described herein in general terms as the details aid in understanding the invention. Furthermore, various specific details have been given to provide a general understanding of the embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, and/or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

Thus, although the present invention has been described herein with reference to particular embodiments thereof, a latitude of modification, various changes and substitutions are intended in the foregoing disclosures, and it will be appreciated that in some instances some features of the invention will be employed without a corresponding use of other features without departing from the scope and spirit of the invention as set forth. Thus, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present invention. It is intended that the invention not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the invention is to be determined solely by the appended claims.

Claims

1. A hair dryer, comprising:

the air duct comprises an air inlet pipe, a duct and a blowing head assembly which are sequentially arranged, the duct is connected with the air inlet pipe, the motor is installed in the duct, the blowing head assembly is connected with the duct, and a buffer gasket is arranged between the duct and the air inlet pipe and/or between the duct and the blowing head assembly;

2. The hair dryer of claim 1, wherein said duct comprises an outer tube and an inner tube, said inner tube is located at the center of said outer tube and is spaced apart from the inner wall of said outer tube, said outer tube is connected to said inner tube by a web, said motor is mounted in said inner tube, said web is provided with a plurality of webs along the circumferential spacing of said inner tube, the surface of said web is inclined relative to the axis of said inner tube so as to enable the air flow passing through said web to be deflected in the circumferential direction.

3. The hair dryer of claim 2, wherein an end plate is arranged at one end of the inner pipe close to the fan blade, an air inlet hole is formed in the end plate, a diversion cone is arranged at one end of the inner pipe far away from the fan blade, an air outlet hole is formed in the tail portion of the diversion cone, and a heat dissipation flow passage communicated with the air inlet hole and the air outlet hole is formed between the motor and the inner pipe.

4. The hair dryer according to claim 3, wherein the guide cone is detachably connected with the inner tube, a quick-connection mechanism is arranged between the guide cone and the inner tube, the quick-connection mechanism comprises an insertion block fixedly connected with the guide cone, the insertion block is arranged in a mode of overhanging along the circumferential direction of the guide cone, a jack matched with the insertion block is arranged on the wall of the inner tube, a sinking groove formed in the outer wall of the inner tube is formed at one end of the jack, and a stop block arranged in a mode of overhanging into the jack along the circumferential direction of the inner tube is arranged at the other end of the jack.

5. The hair dryer of claim 1, wherein: the fan blades are made of magnesium alloy or aluminum alloy.

6. The hair dryer of claim 1, wherein: when the motor power P is 1500W or 2000W, the diameter d of the fan blade is 84 mm; when the motor power P is 2000W, the diameter d of the fan blade is 96 mm.

7. The hair dryer of claim 1, wherein: the duct is connected with the blowing head assembly through a corrugated pipe.

8. The hair dryer of claim 7, wherein a sound insulation layer is disposed on an inner wall of the air duct, and the sound insulation layer comprises at least a first sound insulation layer disposed on an inner wall of the air duct and/or a second sound insulation layer disposed on an inner wall of the corrugated tube.

9. The hair dryer of claim 8, wherein the first sound insulation layer is of a cone-shaped structure, a back adhesive is arranged on the outer wall of the first sound insulation layer, and the first sound insulation layer is fixedly bonded with the inner wall of the air inlet pipe through the back adhesive.

10. The hair dryer of claim 8, wherein: the second puigging is tubular structure, be equipped with the bellying that the corrugate distributes on the outer wall of second puigging, the bellying inlays to be located in the trough of bellows inner wall.

11. The hair dryer of claim 1, wherein: the utility model discloses a duct, including the air-supply line, the duct, the air-supply line with the outside of duct is equipped with the casing, be formed with handle portion on the casing, be equipped with switch assembly on the handle portion, be equipped with control module in the casing, switch assembly with the motor with control module electricity is connected.

12. The hair dryer of claim 11, wherein: a battery pack bin is formed on the casing, a battery pack is mounted in the battery pack bin, and the battery pack is electrically connected with the control module; the battery pack bin is positioned at the tail end of the air inlet pipe, and an air inlet is formed in the side wall and/or the bottom wall of the shell between the battery pack bin and the air inlet pipe.

13. The hair dryer of claim 7, wherein: a shell is arranged outside the air inlet pipe and the duct, a control module is arranged in the shell, a handle part is arranged outside the blowing head assembly, a switch assembly is arranged on the handle part, and the switch assembly and the motor are electrically connected with the control module; the air duct is movably connected with the backpack battery pack, and the control module is electrically connected with the backpack battery pack.