Air duct structure adaptive to blower and handheld fan

Abstract

The air duct structure comprises a bottom shell, a middle shell, an air guide base, an air duct pipe and an upper shell which are sequentially connected in the air exhaust direction, the fan is installed on the air guide base, the air guide base is cylindrical, a plurality of air guide grid pieces are evenly arranged on the air guide base in the circumferential direction of the air guide base, and the air guide grid pieces are connected with the air duct pipe. The length direction of the air guide grid pieces is in the air exhaust direction, and the fan is located on one side of the air inlet direction of the air guide grid pieces. The air duct pipe is of a bowl-shaped structure with two open ends, and the hole diameter of the air inlet end of the air duct pipe is larger than that of the air outlet end. According to the utility model, the air guide seat is arranged, and the plurality of air guide grid sheets are uniformly arranged on the air guide seat along the circumferential direction, so that the air-collecting effect is realized, and the air noise during air outlet can be reduced. The air duct pipe of the bowl-shaped structure is arranged, the hole diameter of the air inlet end of the air duct pipe is larger than that of the air outlet end of the air duct pipe, and the air supply distance is effectively increased.

Description

Technical Field

[0001] This utility model relates to the field of air duct structure, specifically an air duct structure adapted to hair dryers and handheld fans. Background Technology

[0002] In modern life, hair dryers and handheld fans are widely used small electrical appliances. Hair dryers are mainly used to quickly dry hair, achieving this through the combined action of heating elements and airflow. Their airflow design plays a crucial role in airflow speed, temperature distribution, and drying effect. Traditional hair dryer airflow structures are often designed for specific motor power, heating power, and usage scenarios, thus having some limitations. For example, some hair dryer airflow is not concentrated enough, resulting in low drying efficiency and requiring a longer drying time, increasing the user's time cost.

[0003] Handheld fans are used to provide localized cooling in hot environments. The design of their air duct directly affects the airflow volume, wind speed, and delivery distance. Existing handheld fan air duct structures also have design shortcomings. For example, some handheld fan air ducts generate significant noise during operation due to turbulent airflow caused by an unreasonable duct structure. To address the aforementioned problems with the existing air duct structures of hair dryers and handheld fans, the applicant proposes an air duct structure adapted for both hair dryers and handheld fans. Utility Model Content

[0004] The purpose of this invention is to provide an air duct structure adapted to hair dryers and handheld fans, aiming to improve the problems of insufficient airflow concentration, short air delivery distance, and high noise in the existing air duct structures of hair dryers and handheld fans.

[0005] This utility model is implemented as follows: an air duct structure adapted to hair dryers and handheld fans, comprising a bottom shell, a middle shell, an air guide seat, an air duct pipe, and an upper shell arranged sequentially along the exhaust direction. A fan is installed on the air guide seat, which is cylindrical in shape. Multiple air guide grilles are evenly arranged on the air guide seat along its circumference. The length direction of the air guide grilles is along the exhaust direction, and the fan is located on one side of the air guide grilles in the air inlet direction. The air duct pipe has a bowl-shaped structure with openings at both ends, and the diameter of the air inlet end of the air duct pipe is larger than the diameter of the exhaust end.

[0006] Furthermore, the fan includes a motor and fan blades, the fan blades being connected to the motor's shaft.

[0007] Furthermore, a light panel is installed on the air guide seat, and LED beads are installed on the light panel.

[0008] Furthermore, the air guide seat is detachably provided with a light-transmitting cover for shielding the lamp panel and lamp beads.

[0009] Furthermore, the lamp beads are LED lamp beads or red light lamp beads with a wavelength of 655nm.

[0010] Furthermore, the bottom shell is cylindrical, and multiple air inlet grilles are evenly arranged along its circumference at its air inlet, with the length direction of the air inlet grilles along the exhaust direction.

[0011] Furthermore, the middle shell is snapped together with the bottom shell and the air guide seat, the air guide seat is snapped together with the air duct pipe, and the air duct pipe is snapped together with the upper shell.

[0012] Furthermore, the connecting structure includes a locking block and a locking hole. The bottom shell and the top shell are only provided with locking holes, while the middle shell, the air guide seat, and the air duct are all provided with locking blocks and locking holes.

[0013] Furthermore, the clamping block of the air duct includes an elastic plate portion and a clamping head. The length direction of the elastic plate portion is along the exhaust direction. The end of the elastic plate portion near the air guide seat is connected to the main structure of the air duct. The end of the elastic plate portion away from the air guide seat is suspended. The clamping head is disposed on the outer plate surface of the suspended end of the elastic plate portion.

[0014] Furthermore, multiple guide strips are evenly arranged on the outer wall of the air duct along its circumference, and guide grooves corresponding to each guide strip are provided on the inner wall of the upper shell. When each guide strip is inserted into the guide groove, the locking block of the air duct also corresponds to the locking hole of the upper shell.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model is provided with an air guide seat, on which multiple air guide grilles are evenly arranged along its circumference, which enables this utility model to have an air gathering effect and can also reduce wind noise when the air is vented.

[0017] 2. This utility model is equipped with a bowl-shaped air duct, and the diameter of the air inlet end of the air duct is larger than the diameter of the air outlet end, which effectively improves the air delivery distance of this utility model.

[0018] 3. The air guide seat of this utility model is equipped with a light board and light beads. The light beads are LED light beads or red light beads with a wavelength of 655nm. They can be used for dust detection, lighting or hair loss prevention, which is very practical. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the exhaust side of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the air inlet measuring device of this utility model;

[0021] Figure 3 This is an exploded view of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the air guide seat and its mounting components of this utility model;

[0023] Figure 5 yes Figure 4 A schematic diagram of the three-dimensional structure after the light-transmitting cover is removed from the middle structure;

[0024] Figure 6 This is a three-dimensional structural diagram of the air duct of this utility model.

[0025] In the diagram: 1. Bottom shell; 2. Middle shell; 3. Air guide seat; 4. Air duct; 5. Top shell; 6. Fan; 7. Air guide grille; 8. Light panel; 9. LED beads; 10. Light-transmitting cover; 11. Air inlet grille; 12. Clip head; 13. Elastic plate; 14. Guide strip. Detailed Implementation

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0028] like Figures 1-3 As shown, an air duct structure adapted for hair dryers and handheld fans includes a bottom shell 1, a middle shell 2, an air guide seat 3, an air duct 4, and an upper shell 5 arranged sequentially along the exhaust direction. The middle shell 2 is simultaneously snapped into the bottom shell 1 and the air guide seat 3. The air guide seat 3 is also snapped into the air duct 4, and the air duct 4 is also snapped into the upper shell 5. The snap-fit ​​connection structure includes locking blocks and locking holes. The bottom shell 1 and the upper shell 5 only have locking holes, while the middle shell 2, the air guide seat 3, and the air duct 4 all have locking blocks and locking holes. A fan 6 is mounted on the air guide seat 3. The fan 6 includes a motor and fan blades, with the fan blades connected to the motor's shaft. The bottom shell 1 is cylindrical, and multiple air inlet grilles 11 are evenly arranged along its circumference at its air inlet. The length direction of the air inlet grilles 11 is along the exhaust direction, and the air inlet grilles 11 have a protective function, preventing foreign objects from contacting the fan blades of the fan 6.

[0029] like Figures 3-5 As shown, the air guide base 3 is cylindrical, with multiple air guide grilles 7 evenly arranged along its circumference. The length of the air guide grilles 7 is along the exhaust direction, and the fan 6 is located on the side of the air guide grille 7 in the air intake direction. The exhaust air from the fan 6 passes through the air guide grilles 7, which have a concentrating effect and can also reduce wind noise during exhaust. A light panel 8 is installed on the air guide base 3, and LED beads 9 are installed on the light panel 8. The air guide base 3 is provided with a plug hole, into which a light-transmitting cover 10 for covering the light panel 8 and LED beads 9 is inserted. The LED beads 9 use different structures depending on the compatible machine. For example, when compatible with a hair dryer, LED beads 9 can use red LED beads with a wavelength of 655nm, which have a certain hair-smoothing effect and anti-hair loss function. When compatible with a handheld fan, LED beads 9 can be used for dust detection and lighting.

[0030] like Figure 3 and Figure 6 As shown, the air duct 4 has a bowl-shaped structure with openings at both ends. The diameter of the air inlet end of the air duct 4 is larger than the diameter of the air outlet end, which can effectively increase the air delivery distance. The clamping block of the air duct 4 includes an elastic plate part 13 and a clamping head 12. The length direction of the elastic plate part 13 is along the exhaust direction. The end of the elastic plate part 13 near the air guide seat 3 is connected to the main structure of the air duct 4, and the end of the elastic plate part 13 away from the air guide seat 3 is suspended. The clamping head 12 is disposed on the outer plate surface of the suspended end of the elastic plate part 13. Multiple guide strips 14 are evenly arranged along the circumference of the outer wall of the air duct 4. The inner wall of the upper shell 5 is provided with guide grooves that correspond one-to-one with each guide strip 14. When each guide strip 14 is inserted into the guide groove, the locking block of the air duct 4 also corresponds one-to-one with the locking hole of the upper shell 5. This facilitates the accurate assembly and disassembly of the air duct 4 and the upper shell 5, and makes most of the air duct 4 located in the upper shell 5, making the structure of this utility model more compact.

[0031] In summary, this utility model is equipped with an air guide seat 3, on which multiple air guide grilles 7 are evenly arranged along its circumference, giving the utility model an air-gathering effect and reducing wind noise during air output. This utility model also includes a bowl-shaped air duct 4, with the inlet diameter of the air duct 4 being larger than the outlet diameter, effectively increasing the air delivery distance of this utility model.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An air duct structure adapted to a hair dryer and a hand-held fan, characterized by, The application relates to a cylindrical air exhaust device, which comprises a bottom shell (1), a middle shell (2), an air guide base (3), an air duct pipe (4) and an upper shell (5) which are sequentially connected along the air exhaust direction, a fan (6) is installed on the air guide base (3), the air guide base (3) is cylindrical, a plurality of air guide grating pieces (7) are uniformly arranged on the air guide base (3) along the circumferential direction, the length direction of the air guide grating pieces (7) is along the air exhaust direction, and the fan (6) is located on one side of the air guide grating pieces (7) in the air inlet direction; the air duct pipe (4) is in the shape of a bowl with both ends being open, and the hole diameter of the air inlet end of the air duct pipe (4) is larger than that of the air exhaust end.

2. The air duct structure according to claim 1, adapted to a hair dryer and a hand-held fan, characterized in that, The fan (6) comprises a motor and a fan blade, and the fan blade is connected with the rotating shaft of the motor.

3. The air duct structure of claim 1, wherein, A lamp plate (8) is installed on the air guide base (3), and a lamp bead (9) is installed on the lamp plate (8).

4. The air duct structure according to claim 3, adapted to a hair dryer and a hand-held fan, characterized in that, A light-transmitting cover (10) is detachably arranged on the air guide base (3) for covering the lamp plate (8) and the lamp bead (9).

5. The air duct structure according to claim 3, wherein The lamp bead (9) uses an LED lamp bead or a red light lamp bead with a wavelength of 655 nm.

6. The air duct structure according to claim 1, wherein The bottom shell (1) is cylindrical, a plurality of air inlet grating pieces (11) are uniformly arranged on the air inlet of the bottom shell (1) along the circumferential direction, and the length direction of the air inlet grating pieces (11) is along the air exhaust direction.

7. The air duct structure according to claim 1, wherein The middle shell (2) is connected with the bottom shell (1) and the air guide base (3) through clamping, the air guide base (3) is connected with the air duct pipe (4) through clamping, and the air duct pipe (4) is connected with the upper shell (5) through clamping.

8. The air duct structure according to claim 7, adapted to a hair dryer and a hand-held fan, characterized in that, The connecting structure of the clamping connection comprises clamping blocks and clamping holes, only the clamping holes are arranged on the bottom shell (1) and the upper shell (5), and the clamping blocks and the clamping holes are arranged on the middle shell (2), the air guide base (3) and the air duct pipe (4).

9. The air duct structure according to claim 8, adapted to a hair dryer and a hand-held fan, characterized in that, The clamping block of the air duct pipe (4) comprises an elastic plate part (13) and a clamping head part (12), the length direction of the elastic plate part (13) is along the air exhaust direction, one end of the elastic plate part (13) close to the air guide base (3) is connected with the main body structure of the air duct pipe (4), the other end of the elastic plate part (13) far from the air guide base (3) is suspended, and the clamping head part (12) is arranged on the outer plate surface of the suspended end of the elastic plate part (13).

10. The air duct structure according to claim 9, adapted to a hair dryer and a hand-held fan, characterized in that, A plurality of guide strips (14) are uniformly arranged on the outer wall of the air duct pipe (4) along the circumferential direction, guide grooves corresponding to the guide strips (14) are arranged on the inner wall of the upper shell (5), and the clamping block of the air duct pipe (4) and the clamping hole of the upper shell (5) correspond to each other when the guide strips (14) are inserted into the guide grooves.

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