CN220403365U - Hair drier - Google Patents

Abstract

The utility model discloses a blower, which comprises a shell, a blower assembly, a rear cover and a filter screen assembly, wherein the shell is provided with an air inlet and an air outlet; the fan assembly is arranged in the shell and is configured to drive airflow to flow from the air inlet to the air outlet; the rear cover is covered outside the air inlet, and is provided with a plurality of ventilation through holes; the filter screen subassembly includes first filter screen and second filter screen, first filter screen is located the back lid is inboard to cover a plurality of ventilation via holes, second filter screen detachably locates in the back lid, and cover the air intake, the mesh number of second filter screen is greater than the mesh number of first filter screen, just the mesh number of second filter screen is not less than 170 meshes. According to the technical scheme, the risk that hair enters the blower and is wound on the blower assembly in the using process can be reduced.

Description

Hair drier

Technical Field

The utility model relates to the field of hair drying devices, in particular to a hair dryer.

Background

Currently, hair dryers have become a frequently used personal care product in daily life, primarily for drying hair, styling hair, and the like. In the blower, in order to prevent foreign matters from entering the air duct of the blower from the air inlet, a filter screen is usually disposed at the air inlet. Even be provided with dual filtration in some hair-dryer, but in the in-service use, still often appear in the wind channel of hair entering hair-dryer, the condition of winding on fan subassembly, fan subassembly is located the wind channel moreover, and after the hair winding was at the fan group price, be difficult to the clearance, can seriously influence fan subassembly normal work.

Disclosure of Invention

The main object of the present utility model is to propose a hair dryer aimed at reducing the risk of hair getting into the dryer and getting entangled on the fan assembly during use

To achieve the above object, the present utility model provides a blower comprising:

the shell is provided with an air inlet and an air outlet;

the fan assembly is arranged in the shell and is configured to drive airflow to flow from the air inlet to the air outlet;

the rear cover is covered outside the air inlet and is provided with a plurality of ventilation through holes; and

the filter screen assembly comprises a first filter screen and a second filter screen, wherein the first filter screen is arranged on the inner side of the rear cover and covers a plurality of ventilation through holes, the second filter screen is detachably arranged in the rear cover and covers the air inlet, the mesh number of the second filter screen is larger than that of the first filter screen, and the mesh number of the second filter screen is not smaller than 170 meshes.

Optionally, the mesh number of the second filter screen is not less than 200 mesh.

Optionally, the filter screen assembly further includes a third filter screen, and the third filter screen is fixed on the housing and covers the air inlet.

Optionally, the third filter screen is fixed in the air intake is inboard, the middle part of third filter screen is towards the arc structure of air intake outside direction uplift.

Optionally, the rear cover has a mounting opening, the rear cover is covered at the air inlet through the mounting opening, the outer surface of the rear cover is provided with a convex arc surface tapering towards a direction away from the mounting opening, and the ventilation through hole penetrates through the outer surface of the rear cover.

Optionally, the second filter screen includes annular perisporium and connect in diapire of annular perisporium one end, annular perisporium with the diapire all is equipped with a plurality of meshes, the second filter screen is through annular perisporium is kept away from the one end shroud of diapire in the air intake.

Optionally, the back lid includes connecting cylinder and lid, lid detachably install in the one end of connecting cylinder, the connecting cylinder keep away from the one end detachably of lid install in air intake department, the lid is equipped with a plurality of ventilation via hole, first filter screen cover in the internal surface of lid.

Optionally, the opening part of lid is equipped with a plurality of buckles, and is a plurality of the buckle is followed lid open-ended circumference interval distribution, the connecting cylinder inner wall corresponds every the buckle is equipped with a joint convex part, the lid is through the buckle with joint convex part joint is fixed in the connecting cylinder.

Optionally, the rear cover is rotationally buckled with the housing.

Optionally, the shell in the peripheral part of air intake forms the installation annular, the tank bottom wall of installation annular with the terminal surface at air intake place is connected, the tank bottom wall of installation annular is equipped with first card arch, be equipped with in the back lid and dodge groove and first draw-in groove, dodge the groove and run through the terminal surface of back lid, first draw-in groove is connected in dodging the groove, and follows the circumference of back lid extends, first card arch passes through dodge the groove joint in the first draw-in groove.

Optionally, the protruding top surface of first card is equipped with the second draw-in groove, be equipped with the second card in the first draw-in groove protruding, when the protruding card of first card is gone into in the first draw-in groove, the protruding joint of second card in the second draw-in groove is in order to restrict the protruding orientation of first card dodges the direction in groove and remove.

According to the technical scheme, the detachable rear cover is arranged at the air inlet of the blower shell, and the first filter screen and the second filter screen are respectively arranged in the rear cover, so that the second filter screen is positioned between the first filter screen and the air inlet, and the mesh number of the second filter screen is larger than that of the first filter screen. When in actual use like this, can carry out primary filtration through first filter screen to the air current, the rethread second filter screen carries out the filtration again, so adopts double filtration's mode, can reduce the risk that the foreign matter got into the hair-dryer inside. Meanwhile, the mesh number of the second filter screen is not less than 170 meshes, so that hairs in the air flow can be better blocked, the hairs can be effectively prevented from penetrating through the second filter screen to enter the fan assembly, and the risk that the hairs enter the blower and are wound on the fan assembly in the using process is reduced. The first filter screen and the second filter screen are installed in the rear cover together, so that the first filter screen and the second filter screen can be cleaned conveniently after the rear cover is detached.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a blower according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of the blower of fig. 1;

FIG. 3 is an enlarged view of FIG. 1 at A;

fig. 4 is a schematic view of the blower of fig. 1 with the rear cover open;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is a schematic view of the rear cover and second screen of FIG. 1;

FIG. 7 is a schematic view of the rear cover of FIG. 6 after the second filter screen is hidden;

fig. 8 is an exploded view of the rear cover and the second screen of fig. 1.

Reference numerals illustrate:

10. a housing; 101. an air inlet; 102. an air outlet; 103. installing a ring groove; 104. the first clamping protrusion; 105. a second clamping groove; 11. a main body portion; 12. a handle portion; 20. a fan assembly; 30. a rear cover; 301. a mounting opening; 31. a connecting cylinder; 311. a clamping convex part; 312. an avoidance groove; 313. a first clamping groove; 314. the second clamping protrusion; 32. a cover body; 321. a ventilation via; 322. a buckle; 40. a screen assembly; 41. a first filter screen; 42. a second filter screen; 43. a third filter screen; 44. a filter screen bracket; 51. a circuit arrangement; 52. and a heat generating component.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a blower.

In an embodiment of the present utility model, as shown in fig. 1 to 8, the blower includes a housing 10, a blower assembly 20, a rear cover 30, and a filter assembly 40, the housing 10 is provided with an air inlet 101 and an air outlet 102, the blower assembly 20 is disposed in the housing 10, and the blower assembly 20 is configured to drive an air flow from the air inlet 101 to the air outlet 102. The rear cover 30 covers the air inlet 101, and the rear cover 30 is provided with a plurality of ventilation through holes 321. The filter assembly 40 includes a first filter 41 and a second filter 42, the first filter 41 is disposed on the inner side of the rear cover 30 and covers the plurality of ventilation holes 321, the second filter 42 is detachably disposed in the rear cover 30 and covers the air inlet 101, the mesh size of the second filter 42 is larger than that of the first filter 41, and the mesh size of the second filter 42 is not smaller than 170 mesh.

In this embodiment, the blower further includes a circuit device 51 and a heating element 52, the housing 10 includes a main body 11 and a handle 12 connected to one side of the main body 11, the main body 11 has an air inlet 101 and an air outlet 102, and the heating element 52 is disposed in the main body 11 and is located in the air duct between the air outlet 102 and the blower element 20. The circuit device 51 comprises a circuit board and at least one control key, the circuit board is provided with a control circuit, the control key, the heating component 52 and the fan component 20 are all connected with the control circuit, the control key and at least part of the circuit board are arranged on the handle portion 12, on one hand, the space of the handle portion 12 can be utilized, and on the other hand, a user can conveniently operate the control key when holding the handle portion 12. The control key may be a push button or a push switch key. The handle portion 12 is provided with a power cord connected to the circuit device 51. The fan assembly 20 comprises a motor and fan blades arranged on the motor, and the heating device comprises a supporting frame and a heating wire arranged on the supporting frame. The specific structure of the control circuit can refer to the prior art, and the utility model is not repeated here.

Optionally, the number of the control keys is multiple, and the multiple control keys include an air speed control key, a temperature control key, a start key, a cold air key and Tong Suojian, wherein the air speed control key, the temperature control key and the cold air key are arranged on one side of the handle portion 12 close to the air outlet 102, so that a user can operate when holding the handle portion 12, and the start key and Tong Suojian are arranged on one side of the handle portion 12 away from the air outlet 102, so that the risk of false touch in the use process is reduced. Of course, in other embodiments, the control keys include a wind speed control key, a temperature control key, and a start key.

The mesh of the second screen 42 is smaller than the mesh of the first screen 41, i.e. the first screen 41 is used for primary filtering to avoid entry of large particulate impurities, while the second screen 42 is used for further filtering, e.g. for blocking hair and larger particulate dust from entering the blower. When the second filter screen 42 adopts a 170-mesh filter screen structure, that is, the mesh size of the second filter screen 42 is 90 micrometers, that is, the mesh size of the second filter screen 42 is not more than 90 micrometers. In general, the common hair is between 60 micrometers and 90 micrometers, and the hair naturally dropped has a certain length in the daily use process, when the hair flows along with the airflow to the second filter screen 42, the hair is easily adsorbed on the outer surface of the second filter screen 42, so that the effect of blocking the hair can be well achieved when the mesh aperture of the second filter screen 42 is 90 micrometers, and most of the hair can be blocked outside the second filter screen 42.

In the installation, the first filter screen 41 may be installed inside the rear cover 30, the second filter screen 42 may be installed inside the rear cover 30, and the rear cover 30 may be installed at the air inlet 101. After a period of use, the rear cover 30 may be removed from the air inlet 101, and after the second filter 42 is removed, the first filter 41 and the second filter 42 may be cleaned, respectively.

According to the technical scheme of the utility model, the detachable rear cover 30 is arranged at the air inlet 101 of the blower housing 10, and the first filter screen 41 and the second filter screen 42 are respectively arranged in the rear cover 30, so that the second filter screen 42 is positioned between the first filter screen 41 and the air inlet 101, and the mesh number of the second filter screen 42 is larger than that of the first filter screen 41. In practice, the air flow can be primarily filtered through the first filter screen 41 and then filtered again through the second filter screen 42, and the risk that foreign matters enter the blower can be reduced by adopting a double filtering mode. Meanwhile, the mesh number of the second filter screen 42 is not smaller than 170 meshes, so that hairs in the air flow can be better blocked, the hairs can be effectively prevented from penetrating through the second filter screen 42 and entering the fan assembly 20, and the risk that the hairs enter the blower and are wound on the fan assembly 20 in the use process is reduced. And by installing the first and second screens 41 and 42 together in the rear cover 30, the first and second screens 41 and 42 are easily cleaned after the rear cover 30 is disassembled.

In some embodiments, the mesh size of the second screen 42 is not less than 200 mesh. That is, the mesh diameter of the second filter screen 42 is not greater than 75 micrometers, so that the filtering effect can be further improved, and it is found after experiments that even about 60 micrometers of hair can be effectively blocked, and the hair can be effectively prevented from entering the shell 10.

In some embodiments, the screen assembly 40 further includes a third screen 43, the third screen 43 being secured to the housing 10 and covering the air intake 101. Specifically, the mesh size of the third filter 43 is larger than that of the second filter 42, and the third filter 43 is always fixed to the housing 10 when the rear cover 30 is detached. Thus, foreign matters can be prevented from entering the shell 10 when the rear cover 30 is detached, namely, the fan assembly 20 can be prevented from being directly exposed after the rear cover 30 is detached, and the use safety is improved.

In some embodiments, the third filter 43 is fixed inside the air inlet 101, and a middle portion of the third filter 43 has an arc-shaped structure that bulges towards the outer side of the air inlet 101. Specifically, the surface of the third filter 43 is substantially spherical or ellipsoidal, so that the surface area of the third filter 43 is large, and the ventilation amount can be increased.

In some embodiments, the rear cover 30 has a mounting opening 301, the rear cover 30 is covered at the air inlet 101 through the mounting opening 301, the outer surface of the rear cover 30 is provided with a convex arc surface tapering away from the mounting opening 301, and the ventilation through hole 321 penetrates through the outer surface of the rear cover 30. Specifically, the radial dimension of the rear cover 30 tapers in a direction away from the mounting opening 301, and the outer surface of the rear cover 30 is generally spherical, ellipsoidal, or ellipsoidal-like. By the arrangement, the surface area of the rear cover 30 can be increased while the outer surface of the rear cover 30 is smooth, so that the number of ventilation through holes 321 can be increased, and the ventilation quantity can be increased.

In some embodiments, the second filter screen 42 includes an annular peripheral wall and a bottom wall connected to one end of the annular peripheral wall, where the annular peripheral wall and the bottom wall are each provided with a plurality of meshes, and the end of the second filter screen 42 far from the bottom wall is covered on the air inlet 101 by the annular peripheral wall. By the arrangement, the structure of the second filter screen 42 is simple, the surface area of the second filter screen 42 can be increased, the mesh number on the second filter screen 42 is increased, and the air inlet quantity is increased.

In some embodiments, the screen assembly 40 further includes a screen bracket 44, the second screen 42 being mounted to the screen bracket 44, the screen bracket 44 being mounted to the rear cover 30. I.e., support for the second screen 42 by the screen support 44, is applicable to the case where the second screen 42 is a soft screen. Of course, when the second screen 42 has a sufficient strength, for example, when the second screen 42 is a stainless steel screen, the screen holder 44 may not be provided (even if the second screen 42 is a stainless steel screen, the screen holder 44 may be provided for installation).

In some embodiments, the rear cover 30 includes a connecting cylinder 31 and a cover 32, the cover 32 is detachably mounted at one end of the connecting cylinder 31, one end of the connecting cylinder 31 away from the cover 32 is detachably mounted at the air inlet 101, the cover 32 is provided with a plurality of ventilation through holes 321, and the first filter screen 41 covers the inner surface of the cover 32. Specifically, the first filter screen 41 is fixed on the inner surface of the cover 32, and when the first filter screen 41 is installed, the cover 32 is connected with the connecting cylinder 31, and then the second filter screen 42 is installed in the connecting cylinder 31 from the end of the connecting cylinder 31 far from the cover 32. By such arrangement, the first filter screen 41 is convenient to install, the rear cover 30 is formed in a split mode, the forming difficulty of the connecting cylinder 31 and the cover body 32 can be simplified, and the rear cover 30 can be produced and manufactured conveniently.

In some embodiments, a plurality of buckles 322 are disposed at the opening of the cover 32, the plurality of buckles 322 are distributed at intervals along the circumference of the opening of the cover 32, one engaging protrusion 311 is disposed on the inner wall of the connecting cylinder 31 corresponding to each buckle 322, and the cover 32 is fixed to the connecting cylinder 31 by engaging the buckles 322 with the engaging protrusions 311. By such arrangement, the cover 32 can be reliably connected and can be easily disassembled. Of course, in other embodiments, the cover 32 and the connecting cylinder 31 may be connected by screws; or the cover 32 and the connection tube 31 are connected by the buckle 322 and the clamping convex part 311, and the cover 32 and the connection tube 31 are connected by the screw.

When the second filter 42 is mounted in the rear cover 30, the second filter 42 (filter holder 44) may be fixed to the rear cover 30 (connecting tube 31) by a screw, or an abutment portion may be provided in the rear cover 30, and an edge portion of the second filter 42 may abut between an edge portion of the air inlet 101 and the abutment portion.

In some embodiments, the rear cover 30 is rotationally snapped with the housing 10. Specifically, the casing 10 forms a mounting ring groove 103 at the peripheral portion of the air inlet 101, the bottom wall of the mounting ring groove 103 is connected with the end face where the air inlet 101 is located, the bottom wall of the mounting ring groove 103 is provided with a first clamping protrusion 104, an avoidance groove 312 and a first clamping groove 313 are arranged in the rear cover 30, the avoidance groove 312 penetrates through the end face of the rear cover 30, the first clamping groove 313 is connected to the avoidance groove 312 and extends along the circumferential direction of the rear cover 30, and the first clamping protrusion 104 is clamped in the first clamping groove 313 through the avoidance groove 312.

The number of the first clamping protrusions 104 is multiple (two or more), the first clamping protrusions 104 are distributed at intervals along the circumferential direction of the air inlet 101, and the rear cover 30 is provided with a avoiding groove 312 and a first clamping groove 313 corresponding to each position of the first clamping protrusions 104. The width of the avoidance groove 312 is larger than that of the first clamping protrusion 104, and when the rear cover 30 is mounted, the position of the avoidance groove 312 corresponding to the first clamping protrusion 104 is sleeved at the mounting ring groove 103, so that the first clamping protrusion 104 correspondingly extends into the avoidance groove 312, and then the rear cover 30 is rotated, so that the first clamping protrusion 104 is clamped into the first clamping groove 313, and the rear cover 30 can be limited. When the rear cover 30 needs to be detached, the rear cover 30 is reversely rotated, so that the rear cover 30 can be removed after the first clamping protrusion 104 is retracted to the avoiding groove 312. The rear cover 30 is conveniently assembled and disassembled by adopting a mode of rotationally buckling the rear cover 30 and the shell 10. And through setting up installation annular 103 at the lateral surface of shell 10, locate installation annular 103 with protruding 104 of first card for the mode of back lid 30 cover outside shell 10 can be convenient for the shaping first card protruding 104 on shell 10, can reduce the shaping degree of difficulty of shell 10, and the size of back lid 30 is less relatively, and the structure that needs to set up is less, and the structure of dodging groove 312 and first draw-in groove 313 is easily shaped out, is favorable to reducing manufacturing cost. And the provision of the mounting ring groove 103 can reduce or even avoid the protrusion of the outer surface of the rear cover 30 compared with the surface of the housing 10. Of course, in other embodiments, the rear cover 30 and the housing 10 may be fixed by screws, or the rear cover 30 and the housing 10 may be magnetically fixed.

In some embodiments, the top surface of the first card protrusion 104 is provided with the second card slot 105, the first card slot 313 is provided with the second card protrusion 314, and when the first card protrusion 104 is snapped into the first card slot 313, the second card protrusion 314 is snapped into the second card slot 105 to limit the movement of the first card protrusion 104 in the direction of avoiding the slot 312. Specifically, the second clamping groove 105 is spaced from two ends of the first clamping protrusion 104 (two ends of the first clamping protrusion 104 in the circumferential direction of the air inlet 101), when the rear cover 30 is rotated until the first clamping protrusion 104 is clamped into the first clamping groove 313, and the second clamping protrusion 314 corresponds to the second clamping groove 105, the second clamping protrusion 314 is clamped into the second clamping groove 105, so that the rear cover 30 is limited to rotate, that is, the resistance of the first clamping protrusion 104 moving from the first clamping groove 313 to the avoiding groove 312 is increased, and the mounting stability of the rear cover 30 is improved. Of course, in other embodiments, the first protrusion 104 may be made to have an interference fit with the first slot 313 to prevent the rear cover 30 from easily rotating.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A hair dryer, comprising:

the shell is provided with an air inlet and an air outlet;

the fan assembly is arranged in the shell and is configured to drive airflow to flow from the air inlet to the air outlet;

the rear cover is covered outside the air inlet and is provided with a plurality of ventilation through holes; and

the filter screen assembly comprises a first filter screen and a second filter screen, wherein the first filter screen is arranged on the inner side of the rear cover and covers a plurality of ventilation through holes, the second filter screen is detachably arranged in the rear cover and covers the air inlet, the mesh number of the second filter screen is larger than that of the first filter screen, and the mesh number of the second filter screen is not smaller than 170 meshes.

2. The blower of claim 1, wherein the second screen has a mesh size of not less than 200 mesh.

3. The blower of claim 1, wherein the screen assembly further comprises a third screen secured to the housing and covering the air intake.

4. A blower as claimed in claim 3, wherein the third filter is fixed to the inner side of the air inlet, and the middle part of the third filter has an arc-shaped structure protruding toward the outer side of the air inlet.

5. The blower of claim 1, wherein the rear cover has a mounting opening through which the rear cover is covered at the air intake, the outer surface of the rear cover being provided with a convex arc surface tapered in a direction away from the mounting opening, and the ventilation through-hole penetrating the outer surface of the rear cover.

6. The blower of claim 5 wherein said second screen includes an annular peripheral wall and a bottom wall connected to one end of said annular peripheral wall, said annular peripheral wall and said bottom wall each having a plurality of openings therein, said second screen being covered by said annular peripheral wall at an end thereof remote from said bottom wall from said air inlet.

7. The blower of claim 5, wherein the rear cover includes a connecting barrel and a cover, the cover is detachably mounted at one end of the connecting barrel, one end of the connecting barrel away from the cover is detachably mounted at the air inlet, the cover is provided with a plurality of ventilation through holes, and the first filter screen covers the inner surface of the cover.

8. The blower of claim 7, wherein a plurality of buckles are provided at the opening of the cover body, the plurality of buckles are distributed at intervals along the circumferential direction of the opening of the cover body, one clamping convex part is provided on the inner wall of the connecting cylinder corresponding to each buckle, and the cover body is fixed on the connecting cylinder through the clamping of the buckles and the clamping convex parts.

9. The hair dryer of claim 1 wherein said back cover is rotatably engaged with said housing.

10. The blower of claim 9, wherein the housing forms a mounting ring groove at a peripheral portion of the air inlet, a groove bottom wall of the mounting ring groove is connected with an end face where the air inlet is located, a first clamping protrusion is arranged at the groove bottom wall of the mounting ring groove, an avoidance groove and a first clamping groove are arranged in the rear cover, the avoidance groove penetrates through the end face of the rear cover, the first clamping groove is connected with the avoidance groove and extends along a circumferential direction of the rear cover, and the first clamping protrusion is clamped in the first clamping groove through the avoidance groove;

the top surface of the first card is provided with a second clamping groove, the first clamping groove is internally provided with a second card bulge, and when the first card bulge is clamped into the first clamping groove, the second card bulge is clamped into the second clamping groove so as to limit the first card bulge to move towards the direction of the avoidance groove.