CN213045840U - Air duct and blower - Google Patents
Air duct and blower Download PDFInfo
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- CN213045840U CN213045840U CN202021335261.6U CN202021335261U CN213045840U CN 213045840 U CN213045840 U CN 213045840U CN 202021335261 U CN202021335261 U CN 202021335261U CN 213045840 U CN213045840 U CN 213045840U
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- air duct
- air
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- wall
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Abstract
The utility model discloses an air duct and a hair drier, wherein the air duct comprises an annular shell and a motor arranged at the axis of the annular shell, a first air duct is formed between the outer wall of the motor and the inner wall of the annular shell, a turbofan is arranged on an output shaft of the motor, the front end of the annular shell is connected with a round platform shell, the front end of the round platform shell extends forwards to form a flow guide shell, a round platform is arranged in the round platform shell and the flow guide shell, a gap is arranged between the outer wall of the round platform and the inner walls of the round platform shell and the flow guide shell to form a second air duct which can be communicated with the first air duct, a heating wire is arranged in the second air duct, an annular air outlet is arranged between the front end of the flow guide shell and the front end of the round platform, the hair drier mainly comprises a barrel body, an air inlet cover, a handle and the air duct arranged, is beneficial to air outlet.
Description
Technical Field
The utility model belongs to the domestic appliance field, in particular to wind channel and hair-dryer.
Background
The inside small-size motor and the heating wire of mainly having of hair-dryer, the hair-dryer during operation, the motor drives the rotatory high-speed air current that produces of flabellum, and the air current flows from the air outlet again through the heating wire, and in order to make the air current reach good effect of blowing, the inside wind channel of hair-dryer arranges also very important.
The shell of a common hair drier is directly used as the air duct shell, when the hair drier blows hot air, the hair drier shell generates heat seriously, people are easy to scald, and the current hair drier has the defects that the air flow is subjected to larger resistance in the air duct due to the turning of the air duct design, the kinetic energy is reduced, or the air duct opening diameter is too large, so that the air gathering effect is poor, and the air blowing effect is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a wind channel and use hair-dryer in this wind channel, the utility model discloses a following scheme:
an air duct comprises an annular shell, a motor with a motor base is arranged at the axis of the annular shell, a first air duct is formed between the outer wall of the motor and the inner wall of the annular shell, a turbofan capable of sucking air into the first air duct is arranged on an output shaft of the motor at the rear end of the first air duct, the front end of the annular shell is connected with a hollow round platform shell with a wide front part and a narrow back part, the front end of the round platform shell extends forwards to form an annular flow guide shell with a narrow front part and a wide back part, a round platform which is coaxial with the round platform shell and has the same inclination with a bus is arranged in the round platform shell and the flow guide shell, a gap is formed between the outer wall of the round platform and the inner wall of the flow guide shell to form a second air duct capable of being communicated with the first air duct, an electric heating wire is arranged in the second air duct, and an annular air outlet is arranged between the front end of, round platform front end outer wall is equipped with a plurality of edges round platform front end circumference outer wall and interval distribution in proper order can connect the connecting block of tip before the water conservancy diversion casing the round platform tail end is equipped with and can blocks the solid adapting unit of motor cabinet, first wind channel is straight wind channel, the second wind channel is for following the little oblique wind channel of the outer wall of round platform, first wind channel and second wind channel intercommunication constitute the wind channel that calms down slowly that does not have big turn round the round platform casing with the junction of water conservancy diversion casing forms domes, and this structure can increase the wind pressure that flows to annular air outlet.
Furthermore, a plurality of partition plates for installing the heating wires are arranged in the second air duct, clamping blocks with the same number as the partition plates are distributed on the circumferential outer walls of the front end and the rear end of the circular truncated cone at intervals respectively, the clamping blocks of the front end and the rear end of the circular truncated cone correspond to the same bus one by one, and the front end and the rear end of each partition plate are respectively clamped on the two clamping blocks of the same bus.
Furthermore, the front end and the rear end of the partition plate are respectively provided with a fixture block, the fixture block at the front end of the partition plate is abutted against the inner wall surface of the flow guide shell, and the fixture block at the rear end of the partition plate is abutted against the inner wall surface at the rear end of the circular truncated cone shell, so that the circular truncated cone is more stably installed in the circular truncated cone shell.
Furthermore, the connecting part comprises a fixing plate extending from the rear ends of the plurality of partition plates, a fixing groove is formed in the fixing plate, and the motor base is clamped in the fixing groove in the fixing plate.
The utility model provides a hair drier, includes as above the wind channel and the barrel that the front and back end runs through respectively, the wind channel is installed in the barrel, the barrel lower extreme is connected with inside hollow handle, the handle with the barrel intercommunication be equipped with first PCB board in the handle the barrel rear end is equipped with the air inlet cover is global to be equipped with a plurality of even air inlet slotted holes in interval the air inlet cover rear end is installed the back lid.
Furthermore, the lower end of the handle is provided with a plurality of slotted holes, a fine mesh is arranged on the inner wall of the handle corresponding to the slotted holes, a third air duct is formed inside the handle and communicated with the first air duct, and the third air duct can dissipate heat of the first PCB.
Preferably, the air inlet cover rear end is installed and is sheltered from the collar of air inlet cover rear end periphery, the back lid sets up in the collar, back lid central authorities are equipped with the hole liquid crystal display is installed to the outer end of back lid the downthehole second PCB board of installing of back lid, the second PCB board with the liquid crystal display electricity is connected, each item information that the display screen can show the hair-dryer, like the operating condition of hair-dryer, the temperature of wind etc..
Preferably, a magnetic connecting member capable of connecting the tuyere by magnetic attraction is provided at the front end of the cylinder.
Furthermore, a round hole is formed in the lower end face of the handle, a wire holder is installed in the round hole, an electric wire penetrates through the wire holder and is connected to the first PCB, and the first PCB is electrically connected with the motor.
Furthermore, a fixing ring for fixing the air duct in the barrel of the hair dryer extends out of the outer side of the circular truncated cone shell of the air duct.
To sum up, the utility model discloses for its beneficial effect of prior art is: the air duct path has no large turn, and the wind energy loss is small; the air duct forms a pressurizing structure at the air outlet, which is beneficial to air outlet; the main body shell of the hair drier does not directly form an air duct, and a separate air duct is arranged in the main body shell, so that heating of the main body shell is reduced, and a user is prevented from being scalded.
Drawings
FIG. 1 is a schematic cross-sectional view of a center air duct according to the present invention;
FIG. 2 is a second schematic sectional view of the middle duct according to the present invention;
FIG. 3 is a schematic cross-sectional view of a blower according to the present invention;
fig. 4 is a schematic view of the external structure of the hair dryer of the present invention.
Description of reference numerals: 1. a motor; 2. a turbo fan; 3. a flow-guiding housing; 4. an annular housing; 41. a shockproof rubber pad; 5. a circular truncated cone; 51. connecting blocks; 52. a connecting member; 53. a clamping block; 6. a circular truncated cone housing; 7. an annular air outlet; 8. a motor base; 9. a fixing ring; 10. a partition plate; 101. a fixing plate; 102. a clamping block; 103. fixing grooves; 11. a barrel; 12. a handle; 121. a thin slotted hole; 122. a fine mesh; 13. a first PCB board; 14. an air inlet cover; 141. An air inlet ring network; 141. an air inlet slot; 15. a rear cover; 16. a magnetic coupling member; 17. a mounting ring; 18. a liquid crystal display screen; 19. a second PCB board; 20. a wire holder; 21. a fixing ring; 30. an operation button; 100. a first air duct; 200. a second air duct; 300. and a third air duct.
Detailed Description
The following detailed description provides many different embodiments or examples for implementing the invention. Of course, these are merely embodiments or examples and are not intended to be limiting. In addition, repeated reference numbers, such as repeated numbers and/or letters, may be used in various embodiments. These iterations are for simplicity and clarity of describing the present invention and are not intended to represent a particular relationship between the various embodiments and/or configurations discussed.
Furthermore, spatially relative terms, such as "below" … "," below "," inside-out "," above "," upper "and the like, may be used herein to facilitate describing the relationship of one element(s) or feature(s) to another element(s) or feature(s) in the drawings and may encompass different orientations of the device in use or operation and the orientation depicted in the drawings. The devices may be turned to different orientations (0 degrees of rotation or other orientations) and the spatially relative descriptors used therein should also be interpreted as such and are not to be construed as limiting the invention, and the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings:
an air duct as shown in fig. 1 to 2 comprises an annular housing 4, a motor 1 with a motor base 8 is arranged at the axis of the annular housing 4, a first air duct 100 is formed between the outer wall of the motor 1 and the inner wall of the annular housing 4, a turbofan 2 capable of sucking air into the first air duct 100 is installed at the rear end of the first air duct 100 and on an output shaft of the motor 1, a hollow circular truncated cone housing 6 with a wide front part and a narrow back part is connected to the front end of the annular housing 4, an annular diversion housing 3 with a narrow front part and a wide back part is forwardly extended from the front end of the circular truncated cone housing 6, a circular truncated cone 5 coaxial with the circular truncated cone housing 6 and having the same inclination of a bus is arranged in the circular truncated cone housing 6 and the diversion housing 3, a gap is formed between the outer wall of the circular truncated cone 5 and the inner wall of the circular truncated cone housing 6 and the diversion housing 3 to form a second air duct 200 capable of communicating with, an electric heating wire is arranged in the second air duct 200, an annular air outlet 7 is arranged between the front end of the diversion shell 3 and the front end of the circular truncated cone 5, a plurality of connecting blocks 51 which are sequentially distributed at intervals along the circumferential outer wall of the front end of the circular truncated cone 5 and can be connected with the front end of the diversion shell 3 are arranged on the outer wall of the front end of the circular truncated cone 5, and a connecting part 52 which can clamp and fix the motor base 8 is arranged at the tail end of the circular truncated cone 5. First wind channel 100 is straight wind channel, second wind channel 200 is for following the slightly oblique wind channel of 5 outer wall surfaces of round platform, first wind channel 100 and second wind channel 200 intercommunication constitute the wind channel that calms down that does not have big turning round platform casing 6 with the junction of water conservancy diversion casing 3 forms domes, and this structure can increase the wind pressure that flows to annular air outlet 7. When the air channel works, firstly, the motor is started to drive the turbofan 2 to rotate, air is sucked into the first air channel 100, the air enters the second air channel 100 from the first air channel 100, passes through the heating wires in the second air channel 100 and is blown out from the annular air outlet 7 at last, when the heating wires work, heat emitted by the heating wires is absorbed by the air, the blown-out air is hot air, and when the heating wires do not work, the blown-out air is cold air.
As shown in fig. 2, a plurality of clamping blocks 53 are distributed on the circumferential outer walls of the front end and the rear end of the circular truncated cone 5 at intervals, the clamping blocks 53 at the front end and the rear end of the circular truncated cone 5 correspond to the same bus one by one, and preferably, the clamping blocks 53 at the front end of the circular truncated cone 5 are connected to the rear end of the connecting block 51, so that the obstruction at the annular air outlet 7 is reduced.
As shown in fig. 2, a partition plate 10 for installing the heating wire is clamped on two clamping blocks 53 on the same bus bar, the front end and the rear end of the partition plate 10 are respectively provided with a clamping block 102 protruding upwards, the clamping block 102 at the front end of the partition plate 10 abuts against the inner wall surface of the diversion housing 3, and the clamping block 102 at the rear end of the partition plate 10 abuts against the inner wall surface at the rear end of the circular truncated cone housing 6.
As shown in fig. 2, the connecting member 52 includes fixing plates 101 respectively extending from rear ends of the plurality of partition plates 10, fixing grooves 103 are formed in the fixing plates 101, and the motor base 8 is engaged with the fixing grooves 103 formed in the plurality of fixing plates 101, so that the motor base 8 and the motor 1 are fixedly mounted on an axis of the annular housing 4.
As shown in fig. 2, a vibration-proof rubber pad 41 is disposed on an inner wall surface of the annular housing 4, and is used for absorbing vibration transmitted to the annular housing 4 by the motor 1.
The air duct shell is formed by buckling two half shells formed by cutting a plane passing through the axis of the air duct shell through a buckle component and a screw connecting component, wherein the annular shell 4, the circular truncated cone shell 6 and the flow guide shell 3 form the air duct shell.
As shown in fig. 3 to 4, the hair dryer comprises the air duct and a barrel 11 through which the front end and the rear end of the air duct are respectively penetrated, the air duct is installed in the barrel 11, the lower end of the barrel 11 is connected with a handle 12 with a hollow interior, the handle 12 is communicated with the barrel 11, a first PCB 13 is arranged in the handle 12, an air inlet cover 14 is clamped at the rear end of the barrel 11, a plurality of air inlet slot holes 141 with uniform intervals are arranged on the peripheral surface of the air inlet cover 14, and a rear cover 15 is installed at the rear end of the air inlet cover 14.
As shown in fig. 3, laminate in the air inlet cover 14 inner wall is equipped with air inlet looped netowrk 142, and air inlet looped netowrk 142 has buffer airflow and dirt-proof effect, the air inlet cover 14 rear end is equipped with and shelters from the collar 17 of air inlet cover 14 rear end periphery install the centre in the collar 17 and be equipped with porose back lid 15 liquid crystal display 18 is installed to the outer end of back lid 15 install second PCB board 19 in, second PCB board 19 with the liquid crystal display 18 electricity is connected.
As shown in fig. 3, a magnetic coupling member 16 capable of coupling the tuyere by magnetic attraction is provided at the tip end of the cylindrical body 11, and the magnetic coupling member 16 is a magnet.
As shown in fig. 3, a plurality of slotted holes 121 are formed at the lower end of the handle 12, a slotted mesh 122 is installed on the inner wall of the handle 12 corresponding to the slotted holes 121, a third air duct 300 is formed inside the handle 12, the third air duct 300 is communicated with the first air duct 100, and when the hair dryer is in operation, air flows pass through the third air duct 300, and the air flows mainly absorb heat emitted by the first PCB 13 to prevent the first PCB 13 from overheating.
An operating button 30 is arranged on the first PCB 13, the outer end of the operating button 30 extends out of the shell of the handle 12, and functions of switching on and off, speed regulation, temperature regulation and the like of the hair dryer can be realized through the operation of the operating button 30.
As shown in fig. 3, a circular hole is formed in the lower end surface of the handle 12, a wire holder 20 is installed in the circular hole, an electric wire penetrates through the wire holder 20, one end of the electric wire is connected to the first PCB 13, a power plug is arranged at the other end of the electric wire, and the first PCB 13 is electrically connected to the second PCB 19 and the motor 1.
In this embodiment, there are two ways of fixing the air duct in the cylinder 11, one way is to extend a fixing ring 21 outside the circular truncated cone housing 6 of the air duct, as shown in fig. 2, the fixing ring 21 is an annular body, and the fixing ring 21 is connected to the inner wall of the cylinder 11; the other type is fixed by pressing and jointing the outer side of the connecting position of the circular truncated cone shell 6 and the flow guide shell 3 with the inner wall of the cylinder body 11.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only illustrative of the principles of the present invention, and the present invention can be modified in various ways without departing from the spirit and scope of the present invention, and these modifications and changes fall into the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An air duct, characterized in that: including annular housing (4) axle center department is equipped with motor (1) of taking motor cabinet (8), motor (1) outer wall with form first wind channel (100) between annular housing (4) inner wall, be located at the rear end of first wind channel (100) install on the output shaft of motor (1) and can inhale the air turbofan (2) of first wind channel (100) annular housing (4) front end is connected with preceding wide back narrow be hollow round platform casing (6), and round platform casing (6) front end extends forward and has preceding narrow back wide be annular water conservancy diversion casing (3) be equipped with in round platform casing (6) and water conservancy diversion casing (3) with round platform casing (6) coaxial line and with the round platform (5) of generating line inclination, round platform (5) outer wall with round platform casing (6) with have the clearance between the inner wall of water conservancy diversion casing (3) in order to form can with first wind channel (100) even wind channel (100) The air conditioner is characterized by comprising a second air duct (200) communicated with the air conditioner, electric heating wires are arranged in the second air duct (200), an annular air outlet (7) is formed between the front end of the flow guide shell (3) and the front end of the circular table (5), a plurality of connecting blocks (51) which are sequentially distributed at intervals along the circumferential outer wall of the front end of the circular table (5) and can be connected with the front end of the flow guide shell (3) are arranged on the outer wall of the front end of the circular table (5), and a connecting part (52) capable of clamping and fixing the motor base (8) is arranged at the tail end of the circular.
2. The air duct according to claim 1, characterized in that a plurality of partition plates (10) for installing the heating wires are arranged in the second air duct (200), clamping blocks (53) with the same number as the partition plates (10) are respectively distributed on the circumferential outer walls of the front end and the rear end of the circular truncated cone (5) at intervals, the clamping blocks (53) at the front end and the rear end of the circular truncated cone (5) are in one-to-one correspondence with a same bus, and the front end and the rear end of each partition plate (10) are respectively clamped on two clamping blocks (53) on the same bus.
3. The air duct according to claim 2, characterized in that the front end and the rear end of the partition plate (10) are respectively provided with a fixture block (102) protruding upwards, the fixture block (102) at the front end of the partition plate (10) abuts against the inner wall surface of the air guide housing (3), and the fixture block (102) at the rear end of the partition plate (10) abuts against the inner wall surface at the rear end of the circular truncated cone housing (6).
4. The air duct according to claim 3, wherein the connecting member (52) comprises a fixing plate (101) extending from the rear ends of the plurality of partition plates (10), fixing grooves (103) are formed in the fixing plate (101), and the motor base (8) is clamped in the fixing grooves (103) formed in the plurality of fixing plates (101).
5. A hair dryer, its characterized in that: the air duct and the barrel (11) which is respectively penetrated through the front end and the rear end comprise the air duct as claimed in any one of claims 1 to 4, the air duct is installed in the barrel (11), the lower end of the barrel (11) is connected with a handle (12) which is hollow inside, a first PCB (13) is arranged in the handle (12), an air inlet cover (14) is arranged at the rear end of the barrel (11), a plurality of air inlet slotted holes (141) which are evenly spaced are formed in the peripheral surface of the air inlet cover (14), and a rear cover (15) is installed at the rear end of the air inlet cover (14).
6. The hair dryer of claim 5, wherein a plurality of slotted holes (121) are formed on the housing at the lower end of the handle (12), a mesh of fine holes (122) is installed on the inner wall of the handle (12) corresponding to the slotted holes (121), a third air duct (300) is formed between the inside of the handle (12) and the first PCB (13), and the third air duct (300) is communicated with the first air duct (100).
7. The hair dryer as claimed in claim 5, wherein a mounting ring (17) capable of shielding the periphery of the rear end of the air inlet cover (14) is installed at the rear end of the air inlet cover (14), the rear cover (15) is arranged in the mounting ring (17), a hole is formed in the center of the rear cover (15), a liquid crystal display (18) is installed at the outer end of the rear cover (15), a second PCB (19) is installed in the hole of the rear cover (15), and the second PCB (19) is electrically connected with the liquid crystal display (18).
8. Hair dryer according to claim 5, characterized in that a magnetic connection element (16) is provided at the front end of said barrel (11) to which the nozzle can be connected by magnetic attraction.
9. Hair dryer according to claim 5, characterized in that a circular hole is made on the lower end face of said handle (12), a wire holder (20) is mounted in said circular hole, an electric wire is threaded in said wire holder (20), said electric wire is connected to said first PCB (13), and said first PCB (13) is electrically connected to said motor (1).
10. The hair dryer of claim 5, wherein a fixing ring (21) for fixing the air duct in a barrel (11) of the hair dryer extends outside the circular truncated cone housing (6) of the air duct.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202021335261.6U CN213045840U (en) | 2020-07-09 | 2020-07-09 | Air duct and blower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202021335261.6U CN213045840U (en) | 2020-07-09 | 2020-07-09 | Air duct and blower |
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CN213045840U true CN213045840U (en) | 2021-04-27 |
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CN202021335261.6U Active CN213045840U (en) | 2020-07-09 | 2020-07-09 | Air duct and blower |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023050616A1 (en) * | 2021-09-30 | 2023-04-06 | 佛山市顺德区雷泰电器制造有限公司 | Air duct assembly and electric hair drier |
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2020
- 2020-07-09 CN CN202021335261.6U patent/CN213045840U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023050616A1 (en) * | 2021-09-30 | 2023-04-06 | 佛山市顺德区雷泰电器制造有限公司 | Air duct assembly and electric hair drier |
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