CN216568812U - Air duct assembly and electric hair drier - Google Patents

Air duct assembly and electric hair drier Download PDF

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Publication number
CN216568812U
CN216568812U CN202122843788.0U CN202122843788U CN216568812U CN 216568812 U CN216568812 U CN 216568812U CN 202122843788 U CN202122843788 U CN 202122843788U CN 216568812 U CN216568812 U CN 216568812U
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China
Prior art keywords
air
air guide
cavity
bent
section
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CN202122843788.0U
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Chinese (zh)
Inventor
王瑞
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Foshan Shunde Leitai Electrical Appliances Manufacturing Co ltd
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Foshan Shunde Leitai Electrical Appliances Manufacturing Co ltd
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Priority to CN202122843788.0U priority Critical patent/CN216568812U/en
Priority to PCT/CN2021/141891 priority patent/WO2023087493A1/en
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Air-Flow Control Members (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The utility model relates to an air duct assembly and an electric hair drier. The method comprises the following steps: the air conditioner comprises a shell assembly, a fan assembly and a fan, wherein the shell assembly is provided with an air inlet, an air outlet and a first cavity, and the first cavity is communicated with the air inlet and the air outlet respectively; the first air guide piece is provided with a second cavity, and a first opening is formed in the second cavity; the second air guide piece and the shell assembly are enclosed to form a third cavity, a second opening is formed in the third cavity, the second air guide piece penetrates through the first opening to extend to the second cavity, the third cavity is communicated with the second cavity through the second opening, and a communicated gap is formed between the first air guide piece and the second air guide piece in a clamping mode; the third air guide piece is arranged in the third cavity; a motor device disposed within the third cavity. The air duct assembly and the electric hair drier provided by the utility model have the advantages of high air speed, simple air duct structure, low assembly difficulty and low production cost.

Description

Air duct assembly and electric hair drier
Technical Field
The utility model relates to the technical field of household appliances, in particular to an air duct assembly and an electric hair drier.
Background
Most of electric hair drier products in the current market adopt low-speed air blowing to dry hair, and the electric hair drier generally comprises a direct-current low-speed motor and a common air blade and cannot form an integral air outlet duct. Therefore, some high-speed hair dryer products appear in the market, the rotating speed of a motor can reach 11 thousands of revolutions, the wind speed is more than 20m/s, and the hair drying speed is very high. The high-speed electric hair drier products generally have the problems of complex air duct structure, high product assembly difficulty and high manufacturing cost, so the high-speed electric hair drier products are difficult to popularize.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide an air duct assembly and an electric hair dryer with high air speed, simple air duct structure, low assembly difficulty and low production cost, aiming at the problems of low air speed and air pressure, low hair drying speed and complex air duct structure of the existing electric hair dryer product.
An air duct assembly, said air duct assembly comprising: the air conditioner comprises a shell assembly, a fan assembly and a control device, wherein the shell assembly is provided with an air inlet, an air outlet and a first cavity, and the first cavity is respectively communicated with the air inlet and the air outlet; the first air guide piece is provided with a second cavity, and a first opening is formed in the second cavity; the second air guide piece and the shell assembly are enclosed to form a third cavity, a second opening is formed in the third cavity, the second air guide piece penetrates through the first opening and extends to the second cavity, the third cavity is communicated with the second cavity through the second opening, and a communicated gap is formed between the first air guide piece and the second air guide piece in a clamping mode; the third air guide piece is arranged in the third cavity; and the motor device is arranged in the third cavity and used for enabling air to pass through the air inlet of the shell assembly and then sequentially pass through the first cavity, the second cavity and the third cavity and then be output from the air outlet.
The application discloses wind channel assembly, including casing subassembly, first air guide, second air guide, third air guide and motor device. Wherein, the shell body component encloses and forms the first cavity that has air intake and air outlet. The first cavity is communicated with the air inlet and the air outlet respectively to form an air duct. And a second air guide piece, a third air guide piece and a motor device are arranged in the first cavity. Specifically, be equipped with the second cavity on the first air guide, the second air guide can extend to in the second cavity through the first opening on the second cavity. Air inlet gaps communicated with each other are respectively clamped between the first air guide piece and the shell assembly and between the second air guide piece and the first air guide piece. The second air guide piece and the shell component enclose to form a third cavity. The first cavity, the second cavity and the third cavity are communicated. The motor device is arranged in the third cavity, and negative pressure is generated in the third cavity by the motor device, so that air outside the air duct assembly enters the second cavity through the air inlet gap formed by the first cavity of the shell assembly and the first air guide piece. Then enters the third cavity through an air inlet gap between the first air guide piece and the second air guide piece. And finally, after passing through the third air guide in the third cavity, the air is output through an air outlet gap formed by the third air guide and the shell assembly and close to the air outlet.
According to the air duct assembly, air outside the air duct assembly is directly sucked into the air duct assembly through negative pressure air draft generated by the motor device. Then through setting up first air guide, second air guide, third air guide to between air guide and casing subassembly, and form narrow and small air inlet clearance between each air guide, thereby form high-speed air current in the wind channel, and produce the fast-speed wind of blowing, foretell wind channel subassembly simple structure moreover, the part is few, the assembly degree of difficulty is low, and assembly efficiency is high.
In one embodiment, the second air guiding element includes a first vertical air guiding section and a first bent air guiding section, one end of the first bent air guiding section is connected with the first vertical air guiding section to form a bent horn shape, and the other end of the first bent air guiding section is connected with the housing assembly.
Foretell wind channel subassembly, second air guide include first perpendicular wind-guiding section and first wind-guiding section of buckling, and the one end of first wind-guiding section of buckling is connected with first perpendicular wind-guiding section and is formed the loudspeaker form of buckling to after the air current passes through the first perpendicular wind-guiding section of third cavity fast, increased wind channel subassembly's wind-guiding area under the effect of first wind-guiding section of buckling, improve the homogeneity of blowing and the efficiency of blowing.
In one embodiment, an included angle between the first vertical wind guiding section and the joint of the first bent wind guiding section is 95 ° to 175 °.
In the air duct assembly, the included angle between the joint of the first vertical air guiding section and the first bent air guiding section is 95-175 °. In the included angle range of the joint of the first vertical air guide section and the first bent air guide section, the air duct assembly is high in blowing efficiency and good in air outlet uniformity.
Optionally, the included angle of the joint of the first vertical air guiding section and the first bent air guiding section is 95 degrees, the air outlet area is further increased, and the air outlet uniformity is good.
Optionally, the included angle of the joint of the first vertical air guiding section and the first bent air guiding section is 175 degrees, the air outlet concentration is good, the air speed is high, and the air drying efficiency is high.
In one embodiment, an included angle between the first vertical wind guiding section and the joint of the first bent wind guiding section is 120 ° to 160 °.
In the above air duct assembly, further, an included angle between the first vertical air guiding section and the joint of the first bent air guiding section is 120 ° to 160 °.
Preferably, the included angle of the joint of the first vertical air guide section and the first bent air guide section is 135 degrees, the air outlet area is large, the air outlet uniformity is good, the air speed is high, and the air drying efficiency is high.
In one embodiment, the third air guiding element includes a second vertical air guiding section and a second bent air guiding section, the second bent air guiding section is connected to the second vertical air guiding section, the second bent air guiding section is opposite to the first bent air guiding section, and an included angle between a connection position of the second bent air guiding section and the second vertical air guiding section is 95 ° to 175 °.
The third air guide piece of the air duct assembly comprises a second vertical air guide section and a second bent air guide section, the second bent air guide section is connected with the second vertical air guide section, the second bent air guide section is opposite to the first bent air guide section, and the included angle of the joint of the second bent air guide section and the second vertical air guide section is 95-175 degrees. In the above design, when the airflow enters the third cavity, the area of the air duct is enlarged after passing through the first vertical air guiding section and then passing through the first bent air guiding section. Under the condition that the first bent air guide section of the second air guide piece and the second bent air guide section of the third air guide piece are arranged oppositely, on the premise that the air duct area is enlarged, the air speed is improved through narrowing of the air duct.
Optionally, the included angle of the joint of the second bent air guide section and the second vertical air guide section is 95 degrees, so that the air outlet area is increased, and the air outlet uniformity is good.
Optionally, the included angle of the junction of the second bent air guide section and the second vertical air guide section is 175 degrees, so that the air outlet concentration is good, the air speed is high, and the air drying efficiency is high.
Preferably, the included angle of the joint of the second bent air guide section and the second vertical air guide section is 135 degrees, so that the air outlet area is ensured, the air speed concentration can be ensured, the air speed is high, and the air drying efficiency is high.
In one embodiment, the cross-sectional area of the second vertical wind guiding section gradually increases from the position close to the second wind guiding member to the position far away from the second wind guiding member.
In the air duct assembly, the cross-sectional area of the second vertical air guiding section is gradually increased from the position close to the second air guiding member to the position far away from the second air guiding member. The design further improves the air outlet speed on the premise of ensuring the air outlet area.
In one embodiment, the third air guiding element further includes a third bent air guiding section, the third bent air guiding section is connected to one end, away from the second bent air guiding section, of the second vertical air guiding section, and a gap is formed between the third bent air guiding section and the casing component on the side close to the air outlet.
In the air duct assembly, the third air guide piece further comprises a third bent air guide section, and the third bent air guide section is connected with one end, far away from the second bent air guide section, of the second vertical air guide section. Through setting up the third wind-guiding section of buckling, can form certain the blockking to the air-out in the third cavity, reduce the high-speed air-out of wind channel subassembly and directly blow out and produce the sense of stinging to the user to influence and use the travelling comfort.
In one embodiment, the third wind guide further includes a plurality of wind guide plates, and the plurality of wind guide plates are uniformly arranged in an inverted triangle along the circumferential direction of the third bent wind guide section 43.
The third air guide component of the air duct component further comprises a plurality of air guide plates, and the plurality of air guide plates are uniformly arranged in an inverted triangle shape along the circumferential direction of the third bent air guide section, so that the uniformity of air outlet is improved.
In one embodiment, an R-shaped included angle is formed between the third bent air guiding section and the air guiding plate and between the third bent air guiding section and the shell assembly.
In the air duct assembly, further, an R-shaped included angle is formed between the third bent air guide section and the air guide plate as well as between the third bent air guide section and the shell assembly. Above-mentioned design does benefit to the direct of buffering air-out and blows out, improves the travelling comfort that the wind channel subassembly used.
A hair dryer comprising: the air duct assembly comprises a heating device, a handle assembly and the air duct assembly, wherein the handle assembly is connected with the shell assembly, the heating device is arranged in the third cavity, and the heating device is connected with the second air guide assembly or the third air guide assembly.
Embodiments of a second aspect of the present application provide a hair dryer. The electric hair drier is provided with the air duct assembly, so that the electric hair drier can generate high-speed and uniform hot air, the air drying efficiency is high, the air drying effect is good, the air duct structure is simple, the assembly is simple and convenient, the assembly efficiency is high, and the production cost is low
Drawings
FIG. 1 is a schematic view of the overall structure of the air duct assembly of the present invention;
FIG. 2 is a cross-sectional view of the air duct assembly of the present invention;
fig. 3 is a schematic structural view of the first wind guide of the present invention;
fig. 4 is a schematic structural view of a second wind guide according to the present invention;
fig. 5 is a sectional view of a second wind guide according to the present invention;
fig. 6 is a sectional view of a third wind guide according to the present invention;
fig. 7 is a schematic structural view of a third wind guide according to the present invention;
FIG. 8 is a schematic structural view of the hair dryer of the present invention;
fig. 9 is a sectional view of the hair dryer of the present invention.
Wherein, the corresponding relation between the reference mark and the part name is as follows:
1, a shell assembly, 101 an air inlet, 102 an air outlet and 103 a first cavity;
2 a first air guide piece, 201 a second cavity; 202 a first opening;
3 a second air guide component, 301 a third cavity, 31 a first vertical air guide section and 32 a first bent air guide section;
4, a third air guide component, 41 a second vertical air guide section, 42 a second bent air guide section, 43 a third bent air guide section and 44 an air guide plate;
5 a motor device;
6, heating a device;
7 a handle assembly.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The air duct assembly and the hair dryer according to some embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 4, the present embodiment discloses an air duct assembly, including: the air conditioner comprises a shell assembly 1, wherein an air inlet 101, an air outlet 102 and a first cavity 103 are arranged on the shell assembly 1, and the first cavity 103 is respectively communicated with the air inlet 101 and the air outlet 102; the air duct comprises a first air guide member 2, wherein the first air guide member 2 is provided with a second cavity 201, and a first opening 202 is formed in the second cavity 201; the second air guide piece 3 and the shell assembly 1 are enclosed to form a third cavity 301, a second opening 302 is arranged on the third cavity 301, the second air guide piece 3 penetrates through the first opening 202 and extends to the second cavity 201, the third cavity 301 is communicated with the second cavity 201 through the second opening 302, and a communicated gap is formed between the first air guide piece 2 and the second air guide piece 3; the third air guide 4 is arranged in the third cavity 301; the motor device 5 is arranged in the third cavity 301, and the motor device 5 is used for enabling air to sequentially pass through the first cavity 103, the second cavity 201 and the third cavity 301 through the air inlet 101 of the shell assembly 1 and then to be output from the air outlet 102.
The air duct assembly disclosed in the present application includes a housing assembly 1, a first air guide 2, a second air guide 3, a third air guide 4, and a motor device 5. Wherein, the housing assembly 1 encloses a first cavity 103 having an air inlet 101 and an air outlet 102. The first cavity 103 is respectively communicated with the air inlet 101 and the air outlet 102 to form an air duct. The second air guide 3, the third air guide 4, and the motor device 5 are provided in the first cavity 103. Specifically, the first air guiding member 2 is provided with a second cavity 201, and the second air guiding member 3 can extend into the second cavity 201 through a first opening 202 on the second cavity 201. Air inlet gaps which are communicated with each other are respectively clamped between the first air guide 2 and the shell component 1 and between the second air guide 3 and the first air guide 2. The second wind guide 3 and the housing assembly 1 enclose to form a third cavity 301. The first cavity 103, the second cavity 201 and the third cavity 301 are communicated. The motor device 5 is disposed in the third cavity 301, and the motor device 5 generates negative pressure in the third cavity 301, so that air outside the air duct assembly enters the second cavity 201 through the air inlet gap formed between the first cavity 103 of the housing assembly 1 and the first air guide 2. And then enters the third cavity 301 through an air inlet gap between the first air guide 2 and the second air guide 3. And finally, after passing through the third air guide 4 in the third cavity 301, the air is output through an air outlet gap formed between the third air guide 4 and the casing assembly 1 near the air outlet 102.
In the air duct assembly, air outside the air duct assembly is directly sucked into the air duct assembly through negative pressure air draft generated by the motor device 5. Then through setting up first wind guide 2, second wind guide 3, third wind guide 4 again to between wind guide and casing subassembly 1, and form narrow and small air inlet clearance between each wind guide, thereby form high-speed air current in the wind channel, and produce high-speed the blowing, foretell wind channel subassembly simple structure moreover, the part is few, the assembly degree of difficulty is low, and assembly efficiency is high.
As shown in fig. 4 and 5, in addition to the features of the above embodiment, the present embodiment further defines: the second air guide element 3 comprises a first vertical air guide section 31 and a first bent air guide section 32, one end of the first bent air guide section 32 is connected with the first vertical air guide section 31 to form a bent horn shape, and the other end of the first bent air guide section 32 is connected with the shell component 1.
Above-mentioned wind channel subassembly, second wind guide 3 includes first perpendicular wind guide section 31 and first perpendicular wind guide section 32 of buckling, and the one end of first perpendicular wind guide section 32 is connected with first perpendicular wind guide section 31 and is formed the loudspeaker form of buckling to after the air current passes through the first perpendicular wind guide section 31 of third cavity 301 fast, increased wind channel subassembly's wind guide area under the effect of first perpendicular wind guide section 32, improve the homogeneity of blowing and the efficiency of blowing.
As shown in fig. 5, an included angle between the first vertical wind guiding segment 31 and the joint of the first bent wind guiding segment 32 is 95 ° to 175 °.
In the air duct assembly, the included angle between the joint of the first vertical air guiding section 31 and the first bent air guiding section 32 is 95 ° to 175 °. In the range of the included angle between the joint of the first vertical air guiding section 31 and the first bent air guiding section 32, the air duct assembly has high blowing efficiency and good air outlet uniformity.
Optionally, an included angle between the joint of the first vertical air guiding section 31 and the first bent air guiding section 32 is 95 °, the air outlet area is further increased, and the air outlet uniformity is good.
Optionally, an included angle at a joint of the first vertical air guiding section 31 and the first bent air guiding section 32 is 175 °, so that the air outlet concentration is good, the air speed is high, and the air drying efficiency is high.
As shown in fig. 5, in this embodiment, an included angle between a connection portion of the first vertical wind guiding section 31 and the first bent wind guiding section 32 is 120 ° to 160 °.
In the above air duct assembly, further, the included angle between the joint of the first vertical air guiding section 31 and the first bent air guiding section 32 is 120 ° to 160 °.
Optionally, an included angle at the joint of the first vertical air guiding section 31 and the first bent air guiding section 32 is 135 °, the air outlet area is large, the air outlet uniformity is good, the air speed is high, and the air drying efficiency is high.
As shown in fig. 6, in this embodiment, the third wind guide member 4 includes a second vertical wind guide section 41 and a second bent wind guide section 42, the second bent wind guide section 42 is connected to the second vertical wind guide section 41, the second bent wind guide section 42 is disposed opposite to the first bent wind guide section 32, and an included angle between a connection position of the second bent wind guide section 42 and the second vertical wind guide section 41 is 95 ° to 175 °.
In the air duct assembly, the third air guide element 4 includes the second vertical air guide section 41 and the second bent air guide section 42, the second bent air guide section 42 is connected to the second vertical air guide section 41, the second bent air guide section 42 is arranged opposite to the first bent air guide section 32, and an included angle between the second bent air guide section 42 and the joint of the second vertical air guide section 41 is 95 ° to 175 °. In the above design, when the airflow enters the third cavity 301, the air passage area is enlarged after passing through the first vertical air guiding section 41 and then passing through the first bent air guiding section 32. In contrast, when the first bent air guide section 32 of the second air guide 3 and the second bent air guide section 42 of the third air guide 4 are arranged to face each other, the air speed is increased by narrowing the air passage on the premise of increasing the air passage area.
Optionally, an included angle between the joint of the second bent air guiding section 42 and the second vertical air guiding section 41 is 95 °, so that the air outlet area is increased, and the air outlet uniformity is good.
Optionally, the included angle at the joint of the second bent air guiding section 42 and the second vertical air guiding section 41 is 175 °, so that the air outlet concentration is good, the air speed is high, and the air drying efficiency is high.
Preferably, the included angle of the joint of the second bent air guiding section 42 and the second vertical air guiding section 41 is 135 °, which not only ensures the air outlet area, but also ensures the concentration of the wind speed, the wind speed is high, and the air drying efficiency is high.
As shown in fig. 2, 6, and 7, in the present embodiment, the cross-sectional area of the second vertical air guiding section 41 gradually increases from the end closer to the second air guiding member 3 to the end farther from the second air guiding member 3.
In the air duct assembly, the cross-sectional area of the second vertical air guiding section 41 gradually increases from the end close to the second air guiding member 3 to the end far from the second air guiding member 3. The design further improves the air outlet speed on the premise of ensuring the air outlet area.
As shown in fig. 2 and 6, in the present embodiment, the third air guide 4 further includes a third bent air guide section 43, the third bent air guide section 43 is connected to one end of the second vertical air guide section 41, which is far from the second bent air guide section 42, and a gap is interposed between the third bent air guide section 43 and the casing assembly 1 on the side close to the air outlet 102.
In the air duct assembly, the third air guiding element 4 further includes a third bent air guiding section 43, and the third bent air guiding section 43 is connected to one end of the second vertical air guiding section 41, which is far away from the second bent air guiding section 42. Through setting up third wind guide section 43 of buckling, can form certain the blockking to the air-out in the third cavity 301, reduce the high-speed air-out of wind channel subassembly and directly blow out and produce the sense of sting to the user to influence and use the travelling comfort.
As shown in fig. 7, in the present embodiment, the third wind guide 4 further includes a plurality of wind guide plates 44, and the plurality of wind guide plates 44 are uniformly arranged in an inverted triangle along the circumferential direction of the third bent wind guide section 43.
In the air duct assembly, the third air guide member 4 further includes a plurality of air guide plates 44, and the plurality of air guide plates 44 are uniformly arranged along the circumferential direction of the third bent air guide section 43 in an inverted triangle, so as to improve the uniformity of the outlet air.
As shown in fig. 2 and 6, in the present embodiment, an R-shaped included angle is formed between the third bent air guiding section 43, the air guiding plate 44 and the casing assembly 1.
In the air duct assembly, an R-shaped included angle is formed between the third bent air guiding section 43, the air guiding plate 44 and the housing assembly 1. Through the design, the direct blowing-out of the air outlet in a buffering manner is facilitated, and the use comfort of the air duct assembly is improved.
A hair dryer, as shown in figures 8 and 9, comprises: a heating device 6, a handle assembly 7 and an air duct assembly as described in any of the above, the handle assembly 7 is connected to the housing assembly 1, the heating device 6 is disposed in the third cavity 301, and the heating device 6 is connected to the second air guiding assembly 3 or the third air guiding assembly 4.
Embodiments of a second aspect of the present application provide a hair dryer. The electric hair drier is provided with the air duct assembly, so that the electric hair drier can generate high-speed and uniform hot air, the air drying efficiency is high, the air drying effect is good, the air duct structure is simple, the assembly is simple and convenient, the assembly efficiency is high, and the production cost is low.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An air duct assembly, comprising:
the air conditioner comprises a shell assembly (1), wherein an air inlet (101), an air outlet (102) and a first cavity (103) are formed in the shell assembly (1), and the first cavity (103) is communicated with the air inlet (101) and the air outlet (102) respectively;
the air guide device comprises a first air guide piece (2), wherein the first air guide piece (2) is provided with a second cavity (201), and a first opening (202) is formed in the second cavity (201);
the second air guide piece (3) and the shell assembly (1) are enclosed to form a third cavity (301), a second opening (302) is formed in the third cavity (301), the second air guide piece (3) penetrates through the first opening (202) and extends to the second cavity (201), the third cavity (301) is communicated with the second cavity (201) through the second opening (302), and a communicated gap is formed between the first air guide piece (2) and the second air guide piece (3);
the third air guide piece (4), the third air guide piece (4) is arranged in the third cavity (301);
the motor device (5) is arranged in the third cavity (301), and the motor device (5) is used for enabling air to sequentially pass through the first cavity (103), the second cavity (201) and the third cavity (301) through the air inlet (101) of the shell assembly (1) and then to be output from the air outlet (102).
2. The air duct assembly according to claim 1, wherein the second air guide member (3) comprises a first vertical air guide section (31) and a first bent air guide section (32), one end of the first bent air guide section (32) is connected with the first vertical air guide section (31) to form a bent trumpet shape, and the other end of the first bent air guide section (32) is connected with the housing assembly (1).
3. The air duct assembly according to claim 2, wherein the angle between the connection of the first vertical air guiding section (31) and the first bent air guiding section (32) is 95 ° to 175 °.
4. The air duct assembly according to claim 3, wherein the angle between the first vertical air guiding section (31) and the connection of the first bent air guiding section (32) is 120 ° to 160 °.
5. The air duct assembly according to any one of claims 2 to 4, wherein the third air guide member (4) includes a second vertical air guide section (41) and a second bent air guide section (42), the second bent air guide section (42) is connected to the second vertical air guide section (41), the second bent air guide section (42) is disposed opposite to the first bent air guide section (32), and an included angle between a connection position of the second bent air guide section (42) and the second vertical air guide section (41) is 95 ° to 175 °.
6. The air duct assembly according to claim 5, wherein the cross-sectional area of the second vertical air guiding section (41) gradually increases from the end close to the second air guiding member (3) to the end far away from the second air guiding member (3).
7. The air duct assembly according to claim 5, wherein the third air guide member (4) further includes a third bent air guide section (43), the third bent air guide section (43) is connected to an end of the second vertical air guide section (41) away from the second bent air guide section (42), and a gap is interposed between the third bent air guide section (43) and the housing assembly (1) on a side close to the air outlet (102).
8. The air duct assembly according to claim 7, wherein the third air guide member (4) further comprises a plurality of air guide plates (44), and the plurality of air guide plates (44) are uniformly arranged in an inverted triangle shape along the circumferential direction of the third bent air guide section (43).
9. The air duct assembly according to claim 8, wherein the third bent air guiding section (43) is arranged at an angle of R-shape with respect to the air guiding plate (44) and the housing assembly (1).
10. A hair dryer, characterized in that, includes: -a heating device (6), -a handle assembly (7) and-an air duct assembly according to any of claims 1 to 9, said handle assembly (7) being connected to said housing assembly (1), said heating device (6) being arranged within said third cavity (301), said heating device (6) being connected to said second air guide (3) or said third air guide (4).
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