CN217565184U - Hair drier - Google Patents

Abstract

The utility model discloses a hair drier, which comprises a machine head, a hair drier body and a heating element, wherein the heating element is arranged in the machine shell; the handle is arranged on the side surface of the shell and comprises an airflow generator used for generating airflow in the handle; the outer housing is coated on the outer side of the machine shell, and a cavity is formed between the outer peripheral surface of the machine shell and the inner peripheral surface of the outer housing. The hair-dryer of this application is through setting up outer shell in the aircraft nose outside, by the cavity that forms between this outer shell and the casing and have thermal-insulated effect to make its inner structure that need not to change the hair-dryer and realize thermal-insulated effect, compare with prior art, can not influence the installation of the inside components and parts of hair-dryer and arrange, make the overall structure of hair-dryer simple. Simultaneously, set up the outer shell in the casing outside, can avoid using the in-process of hair-dryer to cause the outside damage of casing because of the condition of colliding with, dropping to improve the whole pleasing to the eye degree of hair-dryer.

Description

Hair drier

Technical Field

The utility model belongs to the technical field of domestic appliance, concretely relates to hair-dryer.

Background

In daily life of people, the scalp metabolism causes the head to generate dandruff continuously, and hair washing also becomes a part of the daily life of people. After the hair is washed, when people need to wash and sleep or go out, a large amount of time is spent on naturally drying the hair, and the hair dryer can help people to dry the hair quickly, so that the life of the people is facilitated.

The hair dryer generally comprises a handle and a head, wherein the head comprises a shell, a heating element, a motor, a fan and the like, and the heating element, the motor, the fan and the like are arranged in the shell. In the use process, the air flow flowing through the air blower is heated by the starting of the heating element, but in the heating process, the temperature of the part of the machine shell close to the air blower is inevitably overhigh, so that the integral temperature of the machine shell is not uniform, and the use feeling of a user is poor. In order to solve the above problems, the prior art generally adopts a heat insulation layer arranged in the casing, and a heating element is arranged in the heat insulation layer to solve the problem of nonuniform temperature of the whole casing, but this arrangement brings another problem: because the inside components and parts that need set up of hair-dryer are more, but its own inner space is limited, if the insulating layer will make the overall structure in the casing more complicated in addition.

In addition, the condition that can appear colliding with, dropping and cause the outside damage of casing in the in-process of using the hair-dryer is inevitable to influence the whole pleasing to the eye degree of hair-dryer.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the present invention is how to realize the heat insulation effect of the hair dryer without changing the internal structure of the hair dryer.

In order to solve the technical problem, the utility model provides a hair drier, include:

the machine head comprises a machine shell and a heating element arranged in the machine shell, wherein one end of the machine shell is provided with an air outlet;

the handle is arranged on the side surface of the shell and comprises an airflow generator used for generating airflow in the handle; and

the outer sleeve is coated on the outer side of the machine shell, and a cavity is formed between the outer peripheral surface of the machine shell and the inner peripheral surface of the outer sleeve.

Preferably, the outer casing is made of a transparent or translucent material.

Preferably, a protection part is formed at one end of the outer casing close to the air outlet, and an end part of the casing is located inside the protection part.

Preferably, the casing includes a main body portion and a rear cover disposed at one end of the main body portion, the outer casing is fixed to the rear cover, and the main body portion is clamped between the outer casing and the rear cover.

Preferably, the handpiece is assembled to the handle through the outer casing, and a plug-in structure is arranged between the outer casing and the handle and is connected with the outer casing through a locking piece.

Preferably, above-mentioned grafting structure is including forming inserted sheet on the outer cover shell and formation are in slot on the handle, the slot extends along the direction of height of hair-dryer, it is provided with the locking hole to correspond on inserted sheet and the handle, the inserted sheet insert to in the slot back, the locking piece insert to in the locking hole with the inserted sheet locking is in on the handle, the axis in locking hole is perpendicular with the direction of insertion of inserted sheet.

Preferably, a first sleeving part is formed on the outer casing, a second sleeving part is formed on the handle, the first sleeving part is sleeved on the outer side of the second sleeving part, and the inserting piece is formed on the first sleeving part and located on the inner side of the first sleeving part.

Preferably, the handle includes an inner shell and an outer shell sleeved outside the inner shell, the second sleeving part is formed on the inner shell, the outer shell covers the first sleeving part, and the top of the outer shell abuts against the outer shell.

Preferably, the hair dryer further comprises an outlet sleeve for covering the cable, a clamping assembly for clamping the outlet sleeve is formed at the bottom end of the inner shell, a limiting structure is arranged between the clamping assembly and the outer shell, and the limiting structure limits the outer shell to move in the circumferential direction relative to the inner shell.

Preferably, the bottom of the handle is provided with an air inlet, an air duct for communicating the air inlet with the air inlet part of the head is formed in the handle, and the hair dryer further comprises a filter assembly detachably mounted on the air inlet.

The technical scheme provided by the utility model, following advantage has: the utility model provides a hair-dryer is through setting up outer shell in the aircraft nose outside, by forming the cavity that has thermal-insulated effect between this outer shell and the casing to make its inner structure that need not to change the hair-dryer and realize thermal-insulated effect, compare with prior art, can not influence the installation of the inside components and parts of hair-dryer and arrange, make the overall structure of hair-dryer simple. Meanwhile, the outer casing is arranged on the outer side of the shell, so that the damage to the outer part of the shell caused by the collision and falling of the blower in the process of using the blower can be avoided, and the overall attractiveness of the blower is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a hair dryer of the present invention;

figure 2 is a schematic cross-sectional view of the blower of figure 1;

FIG. 3 is a schematic cross-sectional view of the handpiece and the outer casing shown in FIG. 1 after assembly;

FIG. 4 is an exploded view of the handpiece and outer housing shown in FIG. 1 after assembly;

fig. 5 is an exploded view of the filter assembly and outlet sleeve of fig. 1 assembled with a handle.

Description of reference numerals:

1-a machine shell; 11-a body portion; 12-a rear cover; 121-rear cover body; 122 — a first docking portion; 123-a second docking portion; 13-a holding portion; 14-a master control circuit board; 15-an air inlet part; 17-air outlet; 2-a fixed structure; 21-a fixed groove; 22-fixed block; 3, a buckle structure; 32-a fixture block; 4-a plug-in structure; 41-inserting piece; 42-slot; 43-mounting holes; 51-a first nesting portion; 52-second nesting portion; 6-a cavity; 7-an outlet sleeve; 71-a protruding portion; 8-a clamping arm; 81-a connecting part; 82-a body portion; 821-card hole; 83-a limiting groove; 84-a through hole; 91-a snap groove; 10-machine head; 20-a handle; 201-inner shell; 202-a housing; 203-negative pressure unit; 204-air inlet; 205-an air duct; 30-an outer jacket shell; 301-a guard; 40-a filter assembly; 401-a filter screen; 402-a grid; 403-card insertion; 50-control switch group; 501-touch control circuit board; 502-buttons.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In this application, where the contrary is not intended, directional words such as "upper, lower, top and bottom" are generally used with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, vertical or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the application.

Referring to fig. 1, the hair dryer provided in this embodiment includes a handpiece 10, a handle 20, and an outer casing 30 covering the outside of the handpiece 10. In order to enhance the overall aesthetics of the hair dryer, the outer casing 30 is made of a transparent or translucent material in this embodiment. The hair drier can be applied to a hair drying scene, or a scene of local drying, heating and physical therapy in the aspects of laboratories, physical therapy rooms, industrial production, art designing and the like, and the application scene of the hair drier is not limited.

Specifically, referring to fig. 2 to 4, the head 10 includes a housing 1, an air outlet 17 for exhausting air is formed at one end of the housing 1, meanwhile, in order to achieve a drying effect of the hair dryer, a heating element (not shown) is disposed in the housing 1, the heating element is configured to heat air entering the head 10 from outside, and the heated air is blown out through the air outlet 17.

In this embodiment, the heating element is removably mounted within the cabinet 1 so as to be easily removed and installed for maintenance or component upgrade. The heating element may be a heating wire, which has a higher melting point and can be heated up quickly in a shorter time.

Other functional components, such as at least one or a combination of water ion generator (not shown), negative ion generator (not shown) and collagen generator (not shown), may be disposed in the cabinet 1. For example, when the functional component is a water ion generator, the water in the air can be condensed, and the water is instantly atomized into tiny negative electric water ions through the needle-shaped electrode, and the tiny negative electric water ions are continuously transmitted to the hair along with the wind, so that the hair scales are effectively closed, the hair scales are permeated to the hair and the scalp, the static electricity is reduced, the frizziness is domesticated, and meanwhile, the glossiness of the hair is obviously improved. Functional components can be replaced by components for other purposes as needed, and the application does not specifically limit the types and arrangement of internal functional components of the handpiece 10.

As can be seen from the foregoing, the hot air blown from the blower is formed by heating the air entering the handpiece 10 from the outside through the heating element. In order to allow outside air to enter handpiece 10, in this embodiment, an airflow generator is provided within handpiece 20 to generate an airflow. In the present embodiment, the handle 20 is disposed on a side surface of the housing 1, and the handle 20 is detachably connected to the housing 1.

In particular, the airflow generator comprises a negative pressure unit 203 adapted to generate a negative pressure. The negative pressure unit 203 generates negative pressure to make the outside air form an air flow into the blower. The negative pressure unit 203 may be a fan, which is an integrated arrangement of a driving motor and fan blades. Alternatively, the negative pressure unit 203 may be provided separately for the drive motor and the fan blade, and the fan blade may be provided on the output shaft of the drive motor. The driving motor can be an alternating current induction motor, a series excitation type alternating current and direct current dual-purpose motor or a direct current motor and the like, and the type of the driving motor is not limited in the application.

A main control circuit board 14 is also arranged in the casing 1. The heating element and the airflow generator are electrically connected to the main control circuit board 14, respectively. The main control circuit board 14 may be provided with a constant temperature automatic electric control element (not shown), the heating element is connected in series with the constant temperature automatic electric control element, and when the temperature of the heating element exceeds a predetermined temperature, the constant temperature automatic electric control element cuts off the circuit, thereby playing a role of protection and preventing accidents.

For the convenience of the user, the handle 20 is provided with a control switch set 50, and the control switch set 50 includes a touch control circuit board 501 arranged on the handle 20 and a button 502 located at one side of the touch control circuit board 501 and used for contacting with the touch control circuit board 501 to form a trigger signal. One or more buttons 502 can be provided, and can be adjusted according to the use requirement, and the touch control circuit board 501 is electrically connected with the main control circuit board 14. When the user uses the hair dryer, the main control circuit board 14 controls the relevant functional components to work according to the received trigger signal by pressing the button 502 to form a corresponding trigger signal to the main control circuit board 14.

It should be noted that, the above descriptions of the main control circuit board 14, the switch assembly 50, the airflow generator, and the heating element all adopt the prior art, and the structures, the operating principles, the connection manners, and the using methods of the main control circuit board 14, the switch assembly 50, the airflow generator, and the heating element all adopt the prior art.

As can be seen from the foregoing, the outer casing 30 covers the outside of the casing 1. In order to realize the heat insulation effect between the machine head 10 and the outer casing 30, a cavity 6 is formed between the outer peripheral surface of the machine shell 1 and the inner peripheral surface of the outer casing 30, so that the heat insulation effect can be realized without changing the internal structure of the hair dryer, and the user is prevented from being scalded outside the hair dryer by heat transfer of the heating element after long-time use.

As mentioned above, the outer casing 30 is covered outside the casing 1 so that the outer casing 30 can protect the functional components and the casing 1 in the head 10, thereby avoiding the damage of the casing 1 or the internal functional components caused by the collision and dropping during the use process, improving the aesthetic property of the hair dryer and prolonging the service life.

In order to further improve the protection effect of the outer casing 30 on the casing 1 and the internal functional components thereof, in the embodiment, a protection portion 301 is formed on one end of the outer casing 30 close to the air outlet 17, and the end of the casing 1 is located inside the protection portion 301. The damage of the casing 1 near the air outlet 17 is avoided due to the collision and falling condition in the process of using the blower, so that the air outlet effect of the blower is influenced.

Specifically, the protective portion 301 is formed by extending from one end of the outer casing 30 close to the air outlet 17 in a manner of bending inward in the radial direction thereof, and the thickness of the protective portion 301 gradually decreases from one end close to the outer casing 30 toward one end away from the outer casing 30. So that when the situation of colliding with and dropping occurs in the process of using the hair dryer, the thicker part of the protection part 301 can be contacted with the collision position first to play a role of buffering.

In the above, in order to fix the outer casing 30 on the outer side of the casing 1 to protect the casing 1 and the internal functional components thereof, in the embodiment, the casing 1 includes the main body 11 and the rear cover 12 disposed at one end of the main body 11, the outer casing 30 is fixed on the rear cover 12, and the main body 11 is clamped between the outer casing 30 and the rear cover 12. By fixing the outer casing 30 on the rear cover 12 and clamping the body 11 between the outer casing 30 and the rear cover 12, the structure of the outer casing 30 and the casing 1 after assembly is more compact, so as to enhance the structural stability of the casing 1 and the outer casing 30 after assembly, and further enhance the protection effect of the outer casing 30 on the casing 1.

Specifically, the rear cover 12 includes a rear cover body 121, a first docking portion 122 and a second docking portion 123 formed to protrude from the rear cover body 121. The first docking portion 122 and the second docking portion 123 both extend in the circumferential direction of the rear cover body 121 and are parallel to each other, and the first docking portion 122 is located on the outer circumferential side of the second docking portion 123. The first docking portion 122 is used to fix the outer casing 30, a gap is formed between the first docking portion 122 and the second docking portion 123, and the body portion 11 is inserted between the first docking portion 122 and the second docking portion 123 and fixed to the second docking portion 123. The main body part 11 is inserted between the first butt-joint part 122 and the second butt-joint part 123, so that the tightness of the structure of the handpiece 10 is increased, and the second butt-joint part 123 and the main body part 11 are fixed in an overlapping manner, so that the connection stability between the main body part 11 and the rear cover 12 is enhanced, and the service life of the hair dryer is prolonged.

As can be seen from the foregoing, in order to facilitate the subsequent upgrading of the functional components inside the handpiece 10, in the present embodiment, the main body 11 and the rear cover 12, and the outer casing 30 and the rear cover 12 are detachably connected.

Specifically, the fixing structure 2 is provided between the main body 11 and the rear cover 12, the fixing structure 2 includes a fixing groove 21 and a fixing block 22 inserted into the fixing groove 21, and the fixing groove 21 and the fixing block 22 cooperate to fix the main body 11 to the rear cover 12. In the present embodiment, the fixing groove 21 is formed on the second docking portion 123, and the fixing block 22 is provided on the main body portion 11.

The outer casing 30 and the rear cover 12 have a snap structure 3 therebetween, and the snap structure 3 includes a snap groove (not numbered) and a latch 32 inserted into the snap groove, and the snap groove and the latch 32 cooperate to fix the outer casing 30 on the rear cover 12. In the present embodiment, the catching groove is formed on the inner wall of the first docking portion 122, and the catching block 32 is provided on the exterior sleeve 30.

It should be noted that, in the present embodiment, the connection structure between the main body 11 and the rear cover 12 and the connection structure between the outer casing 30 and the rear cover 12 are not particularly limited, and it suffices that the main body 11 is detachably connected with the rear cover 12, and the outer casing 30 is detachably connected with the rear cover 12.

As described above, the cavity 6 is formed between the outer peripheral surface of the casing 1 and the inner peripheral surface of the outer casing 30, and one end of each of the body 11 and the outer casing 30 is fixed to the rear cover 12. In order to further enhance the structural strength of the assembled casing 1 and the outer casing 30, a supporting portion 13 is formed on the outer side wall of the main body portion 11 at the end far away from the rear cover 12, and the supporting portion 13 extends in the circumferential direction of the main body portion 11 and supports against the inner surface of the outer casing 30, so that the outer casing 30 is stressed at two ends of the main body portion 11, and is more uniform in stress and less prone to deformation, thereby avoiding the situation that the outer casing 30 is stressed unevenly due to collision and falling in use, so that the outer casing 30 is stressed and deformed excessively to be damaged, or is stressed and deformed to collide with the main body portion 11, and the casing 1 is damaged.

In order not to occupy the internal space of the hair dryer to affect the arrangement of the functional components within the hair dryer, in the present embodiment, the handpiece 10 is assembled to the handle 20 through the outer housing 30. So that the coupling of the handle 20 to the head 10 can be accomplished without changing the internal structure of the hair dryer, resulting in a simple assembly structure. Meanwhile, the space in the head 10 is increased, so that the arrangement and heat dissipation of internal functional components are facilitated, the service life of the hair dryer is prolonged, and the subsequent replacement and upgrade of the internal functional components are facilitated.

It should be noted that the air inlet portion 15 is formed on the machine head 10, and specifically, the air inlet portion 15 is an opening provided on the machine case 1. The bottom of the handle 20 is provided with an air inlet 204, an air duct 205 for communicating the air inlet 204 with the air inlet portion 15 is formed in the handle 20, and when the handle 20 is assembled on the handpiece 10 through the outer casing 30, one end of the handle 20 is connected with the air inlet portion 15, so that the interior of the handpiece 10 is communicated with the air duct 205 in the handle 20, and thus, external air enters the handpiece 10 through the handle 20 and is blown out from the air outlet 17 after being heated by the heating element.

In this embodiment, the outer casing 30 is detachably connected to the handle 20 to facilitate subsequent upgrading and replacement of internal functional components of the hair dryer. In other embodiments, the outer casing 30 and the handle 20 may be integrally formed, or may be fixed by a fixing member, for example.

Specifically, the plug-in structure 4 is disposed between the outer casing 30 and the handle 20 and is connected thereto by a locking member (not shown). Wherein, the plug-in structure 4 includes the inserted sheet 41 formed on the exterior sleeve shell 30 and the slot 42 formed on the handle 20, the slot 42 extends along the height direction of the hair dryer, the inserted sheet 41 and the handle 20 are correspondingly provided with the locking hole 43, after the inserted sheet 41 is inserted into the slot 42, the locking piece is inserted into the locking hole 43 to lock the inserted sheet 41 on the handle 20, and the axis of the locking hole 43 is perpendicular to the inserting direction of the inserted sheet 41. In other embodiments, the outer casing 30 and the handle 20 may be fixed by other connection methods, such as a screw connection, a snap connection, or a rotary snap connection, and the application is not limited to the connection method between the outer casing 30 and the handle 20.

In order to enhance the stability and compactness of the assembled outer casing 30 and the handle 20, the outer casing 30 and the handle 20 are in sleeved abutting joint, and the insertion structure 4 is disposed at the sleeved abutting joint position of the outer casing 30 and the handle 20. To reinforce the structural strength of the joint of the outer casing 30 and the handle 20 and to make the structure more compact.

Specifically, the outer casing 30 is formed with a first engaging portion 51, the handle 20 is formed with a second engaging portion 52, the first engaging portion 51 is engaged with the outer side of the second engaging portion 52, and the inserting piece 41 is formed on the first engaging portion 51 and located inside the first engaging portion 51. The inserting pieces 41 are arranged on the inner side of the first sleeving part 51, so that the whole structure of the hair dryer is more compact and attractive, and meanwhile, abrasion of the hair dryer to the inserting structure 4 caused by long-time use or collision and falling damage of the inserting structure 4 in the using process can be avoided.

The handle 20 is also provided with a double-layer shell structure in order to match with the double-layer shell structure formed by the casing 1 and the outer shell 30 and further protect the joint of the outer shell 30 and the handle 20. Specifically, the handle 20 includes an inner housing 201 and an outer housing 202 disposed outside the inner housing 201, the second engaging portion 52 is formed on the inner housing 201, the outer housing 202 covers the first engaging portion 51, and the top of the outer housing 202 abuts against the outer housing 30.

As described above, in order to fix the inner casing 201 and the outer casing 202 of the handle 20, the inner side wall of the outer casing 202 is formed with a fixing block (not shown) which abuts against the bottom end surface of the inner casing 201, and the fixing block and the bottom end surface of the inner casing 201 are correspondingly provided with mounting holes (not shown) having threads, and when the positions of the inner casing 201 and the outer casing 202 are adjusted, bolts (not shown) are sequentially inserted into the mounting holes of the fixing block and the inner casing 201 to fix the fixing block and the inner casing 201, so that the inner casing 201 and the outer casing 202 are fixed. Through also setting up handle 20 as double-deck shell structure, after inner shell 201 is used for with outer shell 30 butt joint is fixed, shell 202 can cladding in inner shell 201 and the grafting structure 4 outside to play the secondary protective action, further strengthen the stability of outer shell 30 after assembling with handle 20, and to the guard action of grafting structure 4.

In this embodiment, the hair dryer is connectable to an external power source to charge or provide operating voltage to the hair dryer, and thus, the hair dryer further includes an outlet sleeve 7 that covers the cable. The outlet sleeve 7 is arranged, so that internal cables of the hair dryer can be led out uniformly, and the cables are protected.

Referring to fig. 5 in conjunction with fig. 2, in order to secure the outlet collar 7 to the bottom of the handle 20, the bottom end of the inner housing 201 is formed with a clamping assembly for clamping the outlet collar 7. In this embodiment, the clamping assembly is two clamping arms 8 disposed on the inner housing 201, a clamping space is formed between the two clamping arms 8, and when assembling, the outlet sleeve 7 is clamped in the clamping space, and the two clamping arms 8 are fixed by bolts, so as to fix the outlet sleeve 7 at the bottom of the handle 20. It should be noted that the clamping assembly and the inner casing 201 may be integrated as a whole, or the clamping assembly and the inner casing 201 may be detachably connected.

Specifically, the wire outlet sleeve 7 is provided with a protruding portion 71 protruding along a circumferential direction thereof, the clamping arm 8 includes two connecting portions 81 disposed at a bottom of the inner housing 201 and a body portion 82 disposed between the two connecting portions 81, a clamping hole 821 is formed in the body portion 82 in an extending manner along a width direction thereof, an arc-shaped first groove is formed above the clamping hole 821, an arc-shaped second groove is formed below the clamping hole 821, when the two clamping arms 8 are assembled, the clamping holes 821 on the two clamping arms 8 are matched to form a clamping cavity for clamping the protruding portion 71, the two first grooves and the two second grooves respectively surround to form a through hole 84 for the wire outlet sleeve 7 to pass through, and when the wire outlet sleeve 7 is clamped between the two clamping arms 8, the protruding portion 71 is matched with the clamping cavity surrounded by the two clamping holes 821 to fix the wire outlet sleeve 7 and the clamping arm 8. In other embodiments, the clamping assembly may be provided in other configurations. The connection mode of the clamping assembly and the inner shell 201 and the structure of the clamping assembly are not particularly limited in this application.

In order to further enhance the structural stability of the assembled inner shell 201 and outer shell 202, a limiting structure is provided between the clamping assembly and the outer shell 202, and the limiting structure limits the outer shell 202 to move in the circumferential direction relative to the inner shell 201.

Specifically, the limiting structure is a limiting groove 83 formed on at least one of the clamping arms 8, and the fixing block on the inner side wall of the outer shell 202 is inserted into the limiting groove 83 to limit the circumferential movement of the fixing block on the handle 20, so as to limit the circumferential movement of the outer shell 202 relative to the inner shell 201. The fixing blocks for fixing the outer shell 202 and the inner shell 201 limit the outer shell 202 to move in the circumferential direction relative to the inner shell 201, so that the structural characteristics of the hair dryer are fully utilized, and the hair dryer is simple in structure and more compact. In other embodiments, the limiting structure may also be configured as other structures, specifically, at least one protrusion and a recess are disposed on the outer sidewall of the inner casing 201 and the inner sidewall of the outer casing 202, for example, and the protrusion is engaged with the recess.

Since dust and hair float in the outside air and are also present, when the hair dryer is used, the airflow generator in the hair dryer operates to make the outside air form an airflow to enter the hair dryer, and the airflow enters the head 10 after passing through the air duct 205 inside the handle 20 and the air inlet portion 15 of the head 10, and is heated by the heating element to be blown out from the air outlet 17, so that the outside dust and hair enter the hair dryer together with the airflow and are left in the hair dryer to pollute the inside of the hair dryer, and the blown hot air can pollute the dried objects or the hair. Meanwhile, after long-term use, the accumulation of dust and hair can affect the heat dissipation of internal functional components, so that the hair dryer is damaged or the using effect of the hair dryer is affected.

To prevent external dust and hair from entering the hair dryer, the hair dryer further includes a filter assembly 40 detachably mounted to the air inlet 204. The filter assembly 40 includes a grill 402 and a filter net 401, and an opening (not numbered) for passing the outlet sleeve 7 is formed at the bottom end of the grill 402.

It should be noted that the grille 402 and the filter screen 401 are integrally formed or detachably mounted. The filter assembly 40 and the handle 20 may be a rotating snap-fit connection or a magnetically attracted connection. The filtering holes of the grid 402 may be diamond-shaped holes, circular holes, or polygonal holes. In this embodiment, the installation manner of the grating 402 and the filter screen 401 and the shape of the filter holes are not particularly limited. In this embodiment, the filter screen 401 is disposed in the inner casing 201, that is, in the air duct 205 of the handle 20, and the grille 402 is disposed at the bottom of the handle 20 and connected to the outer casing 202 through the rotating buckle, so that the user can detach the grille 402 by manually rotating the grille 402, thereby simplifying the detaching mode between the grille 402 and the handle 20 and improving the detaching efficiency of the grille 402.

Specifically, the bottom end of the outer shell 202 extends out of the bottom end of the inner shell 201, a gap is formed between the outer shell 202 and the clamping arm 8, a card inserting portion 403 is formed at the top end of the grating 402, the card inserting portion 403 extends along the circumferential direction of the grating 402, and the thickness of the card inserting portion 403 is smaller than the thickness of the side wall of the grating 402. The housing 202 and the holding arm 8 have a gap therebetween, and the thickness of the card insertion portion 403 is adapted to the size of the gap. The engaging portion 403 is formed with an engaging groove 91, and the inner side wall of the housing 202 is formed with an engaging piece 92, and when assembling, the engaging portion 403 is inserted into the gap, and the grill 402 is rotated so that the engaging piece (not shown) of the housing 202 enters the engaging groove 91, and the grill 402 is fixed to the housing 202.

It should be noted that, because the thickness of the card-inserting part 403 is smaller than the thickness of the side wall of the grille 402, after the assembly is completed, the top end of the grille 402 and the bottom end of the casing 202 can abut against each other, and the outer surface of the grille 402 and the outer surface of the casing 202 are horizontal, so that the whole structure of the hair dryer is more compact, and the sealing performance of the hair dryer is enhanced.

It is to be understood that the above-described embodiments are only a few, but not all, of the embodiments described herein. Based on the embodiments in the present application, a person skilled in the art may make other variations or changes without creative efforts, and all of them should fall into the protection scope of the present application.

Claims (10)

1. A hair dryer, comprising:

the machine head comprises a machine shell and a heating element arranged in the machine shell, wherein one end of the machine shell is provided with an air outlet;

the handle is arranged on the side surface of the shell and comprises an airflow generator used for generating airflow in the handle; and

the outer casing is coated on the outer side of the casing, and a cavity is formed between the outer peripheral surface of the casing and the inner peripheral surface of the outer casing.

2. The hair dryer of claim 1, wherein said outer casing is made of a transparent or translucent material.

3. The hair dryer of claim 1, wherein a protective portion is formed on an end of the outer casing adjacent to the air outlet, and an end portion of the casing is located inside the protective portion.

4. The hair dryer of claim 1, wherein said housing includes a main body portion and a rear cover disposed at an end of said main body portion, said outer casing being fixed to said rear cover, said main body portion being engaged between said outer casing and said rear cover.

5. The hair dryer of claim 1, wherein said handpiece is assembled to said handle by said outer casing, said outer casing and handle being provided with a plug-in structure and connected by a locking member.

6. The hair dryer of claim 5, wherein the plug structure comprises a plug formed on the outer casing and a slot formed on the handle, the slot extends along the height direction of the hair dryer, locking holes are correspondingly formed on the plug and the handle, after the plug is inserted into the slot, the locking piece is inserted into the locking hole to lock the plug on the handle, and the axis of the locking hole is perpendicular to the insertion direction of the plug.

7. The hair dryer of claim 6, wherein the outer casing is formed with a first nesting portion, the handle is formed with a second nesting portion, the first nesting portion is nested outside the second nesting portion, and the insert is formed on the first nesting portion and located inside the first nesting portion.

8. The hair dryer of claim 7, wherein said handle includes an inner casing and an outer casing fitted over an outer side of said inner casing, said second fitting portion is formed on said inner casing, said outer casing covers said first fitting portion, and a top portion of said outer casing abuts against said outer casing.

9. The blower of claim 8, further comprising an outlet sleeve that houses the cable, wherein a bottom end of the inner housing defines a clamping assembly that clamps the outlet sleeve, and wherein the clamping assembly and the outer housing define a stop structure therebetween that limits movement of the outer housing relative to the inner housing in a circumferential direction.

10. The hair dryer of any one of claims 1 to 9, wherein an air inlet is formed at a bottom of the handle, an air duct for communicating the air inlet with an air inlet portion of the head is formed in the handle, and the hair dryer further comprises a filter assembly detachably mounted on the air inlet.

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