CN219270346U

CN219270346U - Main unit of electric hair drier

Info

Publication number: CN219270346U
Application number: CN202320751051.2U
Authority: CN
Inventors: 陈维泉
Original assignee: Zhongshan Xiaolushan Cleaning Equipment Co ltd
Current assignee: Zhongshan Xiaolushan Cleaning Equipment Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-06-30
Anticipated expiration: 2033-04-04

Abstract

The utility model relates to a main machine of an electric hair drier, which comprises a shell, wherein an air inlet end and an air outlet end are respectively formed in the bottom and the top of the shell, a bracket shell is tightly arranged in the shell, a main control board, a fan for forming axial air flow and a heating element for heating the air flow are sequentially arranged in the inner cavity of the bracket shell from the air inlet end to the air outlet end, the fan and the heating element are electrically connected with the main control board, a filter screen support frame which is arranged in a hollowed manner is integrally formed in the bottom of the bracket shell, a filter screen is sleeved on the outer side of the filter screen support frame, and the filter screen is correspondingly arranged with the air inlet end; in this kind of hairdryer host computer for support the filter screen support frame and the support shell adoption integrated into one piece injection moulding of filtering the screen panel, make between support shell and the filter screen support frame firm in connection degree improve greatly, make host computer inner structure more durable, can reduce the development quantity and the equipment man-hour of mould, easy to assemble effectively reduces manufacturing cost, improves production efficiency.

Description

Main unit of electric hair drier

Technical Field

The utility model relates to the field of electric blowers, in particular to a main machine of an electric blower.

Background

The current electric hair drier mainly comprises a main machine and a blowing head arranged on the main machine, and the prior art disclosed by the prior main machine is as follows: the application number of the Chinese patent literature is as follows: as shown in "a handheld household blower" of ZL202020010593.0, the specification of paragraph 0022 discloses that the host machine includes a left and a right support for installing a fan heating component, a motor assembly, a controller component, and other structures, a left and a right support seat for supporting the filter screen, and the left and right supports and the left and right support seats are connected in a separated manner, so that the number of production molds and the man-hour of assembling the host machine can be increased, the production efficiency of the host machine is low, the production cost is increased, and other problems occur.

Disclosure of Invention

The utility model aims to solve the existing problems and provide a main hair dryer with a simple and reasonable structure, which mainly adopts a new assembly mode, and the flat mouth inner sleeve and the wind collecting inner sleeve are respectively fastened from two outer ports of the flat mouth wind outlet sleeve, so that the design space of the flat mouth inner sleeve and the wind collecting inner sleeve is more flexible.

The utility model provides an electric hair drier host computer, includes the casing, air inlet end and air-out end have been seted up respectively to the bottom and the top of casing just the close-fitting has support shell in the casing, support shell's inner chamber is equipped with the main control board in proper order by air inlet end to the air-out end direction, is used for forming axial air current's fan and is used for heating the piece that generates heat of air current, fan and the piece that generates heat and main control board electric connection, support shell's bottom integrated into one piece has the filter screen support frame of fretwork setting, filter screen panel has been cup jointed in the outside of filter screen support frame, filter screen panel corresponds the setting with the air inlet end.

The aim of the utility model can be also solved by adopting the following technical measures:

as more specific scheme, the support shell includes left half shell and right half shell, left side half shell and right half shell's bottom integrated into one piece has left support frame body and right support frame body respectively, left side half shell and right half shell pass through coupling assembling interconnect after, left side support frame body and right support frame body meet and constitute the filter screen support frame that is the cup tube-shape.

As a further scheme, the filter screen supporting hoop is sleeved outside the bottom walls of the left support frame body and the right support frame body, a supporting hoop positioning notch is formed in the bottom walls of the left support frame body and the right support frame body, and a positioning lug matched with the supporting hoop positioning notch extends on the filter screen supporting hoop.

As a further scheme, the fan overcoat is equipped with the elastic damping sleeve, the lateral surface of elastic damping sleeve supports with the support shell and holds, just the upper edge and the lower edge of elastic damping sleeve are provided with respectively the upper and lower bordure of inwards cladding at the fan up and down terminal surface.

As a further scheme, the outer side surface of the elastic damping sleeve is provided with a damping convex structure, and the elastic damping sleeve is propped against the support shell through the damping convex structure;

the shock attenuation protruding structure includes the shock attenuation bulge loop that a plurality of upper and lower intervals set up, elasticity shock attenuation cover and support shell form sealed sound insulation chamber that sets up between two adjacent shock attenuation bulge loops, perhaps, shock attenuation protruding structure includes the shock attenuation bump of a plurality of matrix equipartition at elasticity shock attenuation cover lateral surface.

As a further scheme, a fan limiting structure matched with a fan is arranged at the middle part of the bracket shell; the fan limiting structure comprises an upper limiting step surface and a lower limiting step surface which are arranged on the inner wall of the support shell, and the elastic damping sleeve is clamped between the upper limiting step surface and the lower limiting step surface.

As a further scheme, an upper protection net and a lower protection net are also clamped between the left half shell and the right half shell, the upper protection net is arranged corresponding to the air outlet end of the shell, and the lower protection net is arranged between the main control board and the fan; the periphery of the lower protection net is uniformly distributed with a plurality of connecting lugs, and the left half shell and the right half shell are provided with connecting openings which are clamped with the connecting lugs.

As a further scheme, the shell comprises a main shell, a protective bottom cover and a shell fastening clamp, wherein the main shell is buckled on the outer side of the bracket shell; the protective bottom cover is arranged at the bottom of the main machine shell, sleeved on the periphery of the filter screen cover, provided with a plurality of air inlet holes corresponding to the air inlet ends, and detachably connected with the filter screen support frame through the magnetic component; the shell fastening clamp is arranged at the top of the main shell and is sleeved between the left half shell and the right half shell through a fastening joint.

As a further scheme, the connecting component comprises a plurality of back-off convex edges arranged on the side edge of the left half shell and a plurality of buckling barbs arranged on the side edge of the right half shell and corresponding to the back-off convex edges, and the left half shell and the right half shell are in matched buckling connection with the buckling barbs through the back-off convex edges;

the connecting assembly further comprises a connecting convex column transversely arranged on the left support frame body and a connecting sleeve transversely arranged on the right support frame body, wherein the connecting convex column is positioned and inserted in the connecting sleeve and penetrates through the connecting sleeve and the connecting convex column through a fastening unit, so that the left support frame body and the right support frame body are fastened and connected.

As a further scheme, the bottom of the filter screen support frame is provided with an upper magnet, the protective bottom cover is provided with a lower magnetic ring or a magnet receiving body corresponding to the upper magnet, the upper magnet and the lower magnetic ring or the magnet receiving body form a magnetic attraction assembly, and the protective bottom cover is detachably connected to the periphery of the filter screen support frame through magnetic attraction matching.

The beneficial effects of the utility model are as follows:

according to the electric hair drier main machine, the filter screen support frame for supporting the filter screen cover and the support shell are integrally injection molded, so that the connection firmness between the support shell and the filter screen support frame is greatly improved, the internal structure of the main machine is more firm and durable, the development number of dies and the assembly time are reduced, the installation is convenient, the production cost is effectively reduced, the production efficiency is improved, and the market competitiveness of enterprises is enhanced.

Drawings

Fig. 1 is a schematic cross-sectional view of a host according to the present utility model.

Fig. 2 is a schematic diagram of an exploded structure of a filter screen support and a filter screen cover according to the present utility model.

Fig. 3 is a schematic view of a detachable structure of a filter screen bracket according to the present utility model.

Fig. 4 is an enlarged schematic view of the structure at a in fig. 1.

Fig. 5 is a schematic structural view of an elastic damping sleeve according to the present utility model.

FIG. 6 is a schematic diagram of a second embodiment of the elastic damping sleeve according to the present utility model.

Fig. 7 is an exploded view of the host according to the present utility model.

Fig. 8 is a schematic view of the structure of the lower protection net of the present utility model.

Fig. 9 is an enlarged schematic view of the structure at B in fig. 1.

Fig. 10 is an exploded view of the bracket housing of the present utility model.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

As shown in fig. 1 to 10, the electric hair drier host comprises a machine shell 1, an air inlet end 101 and an air outlet end 102 are respectively formed in the bottom and the top of the machine shell 1, a support shell 2 is tightly matched in the machine shell 1, a main control board 3, a fan 4 for forming axial air flow and a heating element 5 for heating the air flow are sequentially assembled in the inner cavity of the support shell 2 from the air inlet end 101 to the air outlet end 102, the fan 4 and the heating element 5 are electrically connected with the main control board 3, a filter screen support frame 6 is integrally formed in the bottom of the support shell 2, a filter screen cover 7 is sleeved on the outer side of the filter screen support frame 6, and the filter screen cover 7 is correspondingly arranged with the air inlet end 101.

In this kind of hairdryer host computer for support filter screen support frame 6 and the support shell 2 of filtering screen panel 7 adopt integrative injection moulding, make between support shell 2 and the filter screen support frame 6 firm in connection degree improve greatly, make host computer inner structure more durable, can reduce the development quantity of mould and assemble individual man-hour, easy to assemble effectively reduces manufacturing cost, improves production efficiency.

The support shell 2 comprises a left half shell 21 and a right half shell 22, a left support frame body 61 and a right support frame body 62 are respectively integrally formed at the bottoms of the left half shell 21 and the right half shell 22, and after the left half shell 21 and the right half shell 22 are connected with each other through a connecting component, the left support frame body 61 and the right support frame body 62 are connected to form a cup-shaped filter screen support frame 6; the bracket shell 2 is divided into the left half shell 21 and the right half shell 22, so that the main control panel 3, the fan 4 and the heating element 5 are conveniently embedded in the bracket shell 2, and the position can be fixed by clamping.

The filter screen supporting hoop 8 is sleeved outside the bottom walls of the left support frame body 61 and the right support frame body 62; the filter screen support hoop 8 is sleeved on the outer side of the filter screen support frame 6 at the filter screen cover 7, and supports and fixes the filter screen cover 7, so that the filter screen cover 7 is prevented from falling off.

And two support hoop positioning notches 63 are respectively formed in the bottom walls of the left support frame body 61 and the right support frame body 62, positioning convex blocks 801 matched with the support hoop positioning notches 63 extend on the filter screen support hoops 8, the support hoop positioning notches 63 and the positioning convex blocks 801 are matched to prevent the filter screen support hoops 8 from axially rotating, support hoop clamping blocks 802 are further arranged between two adjacent positioning convex blocks 801, support hoop clamping grooves 64 matched with the support hoop clamping blocks 802 in a clamping manner are formed in the bottom walls of the left support frame body 61 and the right support frame body 62, and accordingly the positions of the filter screen support hoops 8 are fixed, and guide inclined planes 65 for guiding the hoop clamping blocks 802 into the support hoop clamping grooves 64 are arranged below the support hoop clamping grooves 64.

The elastic damping sleeve 9 is sleeved outside the fan 4, the outer side surface of the elastic damping sleeve 9 is propped against the support shell 2, and the elastic damping sleeve 9 can reduce or absorb vibration transmission generated by the operation of the fan 4, so that vibration on the shell 1 and noise generated by the operation of the fan 4 can be reduced; the upper edge and the lower edge of the elastic damping sleeve 9 are respectively provided with an upper wrapping edge 901 and a lower wrapping edge 902 which are inwards wrapped on the upper end surface and the lower end surface of the fan 4; the relative position to the blower 4 is defined by the upper and

lower rims

901 and 902, which also helps to reduce vibration.

The outer side surface of the elastic damping sleeve 9 is provided with a damping convex structure, the elastic damping sleeve 9 is propped against the support shell 2 through the damping convex structure, and the damping convex structure can reduce the contact area with the support shell 2, so that the transmission of vibration is reduced;

in this embodiment, the damping convex structures are a plurality of damping convex rings 903 (refer to fig. 5 specifically) arranged at intervals up and down, the damping convex rings 903 can uniformly disperse the acting force around the fan 4, and the elastic damping sleeve 9 and the bracket shell 2 form a sound insulation cavity 905 between two adjacent damping convex rings 903, so that the sound insulation cavity 905 formed by abutting can play a role of sound insulation;

in more embodiments, the shock absorbing protruding structures may also be a plurality of shock absorbing protruding points 904 (refer to fig. 6 specifically) that are uniformly distributed or irregularly distributed on the outer side surface of the elastic shock absorbing sleeve 9, where the shock absorbing protruding points 904 may be the same height or different heights, so as to adapt to the situation that the inner wall of the support housing 2 may be extremely bad, in each embodiment, the outer ends of the shock absorbing protruding rings 903 and the shock absorbing protruding points 904 are preferably arc-shaped surfaces, and the arc-shaped surfaces can reduce the contact area with the support housing 2 as much as possible, so as to reduce the shock of the fan 4 from being transferred to the support housing 2.

A fan limiting structure matched with the fan 4 is arranged at the middle part of the bracket shell 2; the fan limiting structure comprises an upper limiting step surface 201 and a lower limiting step surface 202 which are arranged on the inner wall of the bracket shell 2, and the elastic damping sleeve 9 is clamped between the upper limiting step surface 201 and the lower limiting step surface 202; the fan 4 and the elastic damping sleeve 9 can be limited through the upper limiting step surface 201 and the lower limiting step surface 202, and the situation that the fan 4 is shifted after long-time use is avoided.

An upper protection net 10 and a lower protection net 11 are also clamped between the left half shell 21 and the right half shell 22, the upper protection net 10 is arranged corresponding to the air outlet end 102 of the shell 1, and the lower protection net 11 is arranged between the main control panel 3 and the fan 4; a plurality of connection lugs 111 are uniformly distributed on the periphery of the lower protection net 11, and connection openings 203 which are clamped with the connection lugs 111 are formed in the left half shell 21 and the right half shell 22;

specifically, the inner walls of the left half shell 21 and the right half shell 22 are provided with

semicircular grooves

211 and 221 corresponding to the upper protection net 10 and the lower protection net 11 respectively, and when the left half shell 21 and the right half shell 22 are butted, the left half groove 211 and the right half groove 221 form two annular positioning grooves for clamping and fixing the upper protection net 10 and the lower protection net 11.

In addition, in this embodiment, the upper protection net 10 is a net structure formed by integrally forming metal materials, and because the main machine can heat air flow to form hot air during working, the hot air finally flows out through the upper protection net 10, and the upper protection net 10 made of the material can resist high temperature and is not easy to deform after being heated;

the purpose of installing the lower protection net 11 in the host is to prevent foreign matters from being sucked into the fan 4 to damage the fan 4, and the lower protection net 11 only passes fresh air, so that the lower protection net 11 is formed by integral injection molding of plastic materials in view of cost, and no high-temperature resistant material is required to be produced;

the thickness of the lower protection net 11 in this embodiment is greater than that of the upper protection net 10 due to plastic injection molding, so that the lower protection net can provide enough strength to resist the impact of foreign matters, the diameter of the ventilation openings 112 on the lower protection net 11 is larger and has a hexagonal structure, the ventilation area of the ventilation openings 112 can be increased to the maximum extent, the air resistance can be reduced, and the diameter of the ventilation openings can be designed larger, because the fine foreign matters are filtered by the filter screen 7 when the air entering the host passes through the air inlet end 101, the possibility of foreign matters appearing between the air inlet end 101 and the fan 4 is only generated inside the host, and when the host collides, massive large fragments of the bracket shell 2 or the main control board 3 can appear, and the filtering effect can be formed by the lower protection net 11 with the structure.

The shell 1 comprises a main shell 12, a protective bottom cover 13 and a shell fastening clamp 14, wherein the main shell 12 is fastened on the outer side of the support shell 2, a shell bayonet 208 is arranged on the periphery of the support shell 2, a fastening projection 121 matched with the shell bayonet 208 is arranged on the inner wall of the main shell 12, and fastening

guide surfaces

209 and 122 which are mutually inclined and matched are arranged on the support shell 2 and the fastening projection 121.

The protective bottom cover 13 is arranged at the bottom of the main casing 12 and sleeved on the periphery of the filter screen cover 7, a plurality of air inlet holes 131 are formed corresponding to the air inlet end 101, the protective bottom cover 13 is detachably connected with the filter screen support frame 6 through the magnetic component, and the protective bottom cover 13 can prevent the filter screen cover 7 from being collided; the bottom protection cover 13 can be disassembled and assembled, so that a user can jack up and clean foreign matters or dust on the filter screen cover 7 conveniently, and the host can ensure enough air inlet quantity.

The shell fastening clamp 14 is arranged at the top of the main shell 12 and sleeved between the left half shell 21 and the right half shell 22 through a buckling joint; the housing clamp 14 can be fixed in place to the main housing 12.

The portable electronic device further comprises a key circuit board 17 connected with the main control board 3, wherein the key circuit board 17 is positioned and arranged between the main machine shell 12 and the support shell 2, and a plurality of keys 18 in movable contact fit with the key circuit board 17 are arranged on the support shell 2.

The connecting assembly comprises a plurality of back-off convex edges 204 arranged on the side edge of the left half shell 21 and a plurality of buckling barbs 205 which are arranged on the side edge of the right half shell 22 and correspond to the back-off convex edges 204, and the left half shell 21 and the right half shell 22 are matched and buckled with the buckling barbs 205 through the back-off convex edges 204;

the connecting assembly further comprises a connecting convex column 206 transversely arranged on the left support frame body 61 and a connecting sleeve 207 transversely arranged on the right support frame body 62, wherein the connecting convex column 206 is positioned and inserted in the connecting sleeve 207, and passes through the connecting sleeve 207 and the connecting convex column 206 through a fastening unit such as a screw to realize the fastening connection of the left support frame body 61 and the right support frame body 62; the connecting assembly with the structure can realize quick assembly and disassembly of the left half shell 21 and the right half shell 22, and the left support frame body 61 and the right support frame body 62 are firmly connected, and after the left support frame body 61 and the right support frame body 62 are tightly connected, the main control panel 3 is clamped between the left support frame body 61 and the right support frame body 62.

The bottom of the filter screen supporting frame 6 is provided with an upper magnet 15, the protective bottom cover 13 is provided with a lower magnetic ring or a magnet receiving body 16 corresponding to the upper magnet 15, the upper magnet 15 and the lower magnetic ring or the magnet receiving body 16 form a magnetic attraction assembly, and the protective bottom cover 13 is detachably connected to the periphery of the filter screen supporting frame 6 through magnetic attraction fit; this structure makes the protection bottom cover 13 to dismantle from the host computer bottom, and convenience of customers washs filtration screen 7, simple structure, simple to operate.

The foregoing is a preferred embodiment of the utility model showing and describing the general principles, features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric hair drier host computer, includes casing (1), air inlet end (101) and air-out end (102) have been seted up respectively to the bottom and the top of casing (1), just set up support shell (2) in casing (1), the inner chamber of support shell (2) is equipped with main control panel (3) in proper order, is used for forming fan (4) of axial air current and is used for heating piece (5) that generate heat of air current by air inlet end (101) toward air-out end (102) direction, fan (4) and piece (5) and main control panel (3) electric connection generate heat, its characterized in that: the bottom integrated into one piece of support shell (2) has filter screen support frame (6) that the fretwork set up, filter screen panel (7) have been cup jointed in the outside of filter screen support frame (6), filter screen panel (7) correspond setting with air inlet end (101).

2. The main hair dryer unit as set forth in claim 1, wherein the support housing (2) comprises a left half shell (21) and a right half shell (22), the bottoms of the left half shell (21) and the right half shell (22) are respectively integrally formed with a left support frame body (61) and a right support frame body (62), and after the left half shell (21) and the right half shell (22) are connected with each other through a connecting component, the left support frame body (61) and the right support frame body (62) are connected to form a cup-shaped filter screen support frame (6).

3. The main hair drier machine according to claim 2, further comprising a filter screen supporting hoop (8), wherein the filter screen supporting hoop (8) is sleeved outside the bottom walls of the left support frame body (61) and the right support frame body (62), a supporting hoop positioning notch (63) is formed in the bottom walls of the left support frame body (61) and the right support frame body (62), and a positioning lug (801) matched with the supporting hoop positioning notch (63) extends on the filter screen supporting hoop (8).

4. The main machine of electric hair drier of claim 1, wherein the fan (4) is sleeved with an elastic damping sleeve (9), the outer side surface of the elastic damping sleeve (9) is propped against the support shell (2), and an upper edge and a lower edge of the elastic damping sleeve (9) are respectively provided with an upper wrapping edge (901) and a lower wrapping edge (902) which are inwards wrapped on the upper end surface and the lower end surface of the fan (4).

5. The main machine of electric hair drier according to claim 4, wherein the outer side surface of the elastic shock absorbing sleeve (9) is provided with a shock absorbing convex structure, and the elastic shock absorbing sleeve (9) is propped against the bracket shell (2) through the shock absorbing convex structure;

the shock attenuation protruding structure includes shock attenuation bulge loop (903) that a plurality of circles from top to bottom interval set up, elasticity shock attenuation cover (9) and support shell (2) form sealed sound insulation chamber that sets up between two adjacent shock attenuation bulge loops (903), perhaps, shock attenuation protruding structure includes shock attenuation bump (904) of a plurality of matrix equipartition at elasticity shock attenuation cover (9) lateral surface.

6. The main machine of electric hair drier according to claim 4, wherein a fan limiting structure matched with the fan (4) is arranged at the middle part of the bracket shell (2); the fan limiting structure comprises an upper limiting step surface (201) and a lower limiting step surface (202) which are formed in the inner wall of the support shell (2), and the elastic damping sleeve (9) is clamped between the upper limiting step surface (201) and the lower limiting step surface (202).

7. The main hair drier machine according to claim 2, wherein an upper protection net (10) and a lower protection net (11) are further clamped between the left half shell (21) and the right half shell (22), the upper protection net (10) is arranged corresponding to the air outlet end (102) of the shell (1), and the lower protection net (11) is arranged between the main control panel (3) and the fan (4); the periphery of the lower protection net (11) is uniformly provided with a plurality of connecting convex blocks (111), and the left half shell (21) and the right half shell (22) are provided with connecting openings (203) which are clamped with the connecting convex blocks (111).

8. The main hair drier according to claim 2, wherein the shell (1) comprises a main shell (12), a protective bottom cover (13) and a shell fastening clamp (14), and the main shell (12) is buckled on the outer side of the bracket shell (2); the protective bottom cover (13) is arranged at the bottom of the main machine shell (12) and sleeved on the periphery of the filter screen cover (7), a plurality of air inlet holes (131) are formed corresponding to the air inlet end (101), and the protective bottom cover (13) is detachably connected with the filter screen support frame (6) through the magnetic component; the shell fastening clamp (14) is arranged at the top of the main shell (12) and sleeved between the left half shell (21) and the right half shell (22) through a buckling joint.

9. The main hair dryer unit according to claim 2, wherein the connecting assembly comprises a plurality of back-off convex edges (204) arranged on the side edge of the left half shell (21) and a plurality of corresponding buckling barbs (205) arranged on the side edge of the right half shell (22) and corresponding to the back-off convex edges (204), and the left half shell (21) and the right half shell (22) are in matched buckling connection with the buckling barbs (205) through the back-off convex edges (204);

the connecting assembly further comprises a connecting convex column (206) transversely arranged on the left support frame body (61) and a connecting sleeve (207) transversely arranged on the right support frame body (62), the connecting convex column (206) is positioned and inserted into the connecting sleeve (207), and the left support frame body (61) and the right support frame body (62) are tightly connected through the connecting sleeve (207) and the connecting convex column (206) by a fastening unit.

10. The main machine of claim 8, wherein an upper magnet (15) is arranged at the bottom of the filter screen support frame (6), a lower magnetic ring or a magnet receiving body (16) is arranged on the protective bottom cover (13) corresponding to the upper magnet (15), the upper magnet (15) and the lower magnetic ring or the magnet receiving body (16) form a magnetic assembly, and the protective bottom cover (13) is detachably connected to the periphery of the filter screen support frame (6) through magnetic matching.