Air duct structure of air blower

Abstract

An air duct structure of an air blower comprises an air duct body, an air inlet is formed in the lower side face of the air duct body, an air flow channel is formed in the air duct body, a ceramic heater is installed in the air flow channel, the air inlet end and the air outlet end of the air flow channel are each provided with an air flow inclined wall, the air inlet end is communicated with the air inlet, and the air outlet end is communicated with the ceramic heater. And the air outlet end is provided with an air outlet with a large inside and a small outside. The air flow inclined wall at the air inlet end can adsorb air flow to the inclined plane to flow, local accelerated flow is generated, meanwhile, pressure difference is formed between the air flow and surrounding air flow, boundary layer separation is generated, then wind power vortex with the Karman vortex street phenomenon is formed in the wake flow area of the inclined plane, air flow direction deflection is formed under the action of Coriolis force, and the air flow direction deflection effect is achieved. And the air flows towards the air wall guide part. The air flow inclined wall at the air outlet end can also play a role in accelerating flow. The air outlet is large in inside and small in outside to form the Bernoulli principle, air compression and release are carried out, air flowing acceleration is generated, and therefore the air outlet efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric hair dryer, and relates to a wind tube structure of hair dryer. BACKGROUND

[0002] The wireless hair dryer is not bound by wires, can be freely moved and is more convenient to use; the wireless hair dryer is usually provided with overheat protection and automatic power-off function, improving the safety in use; the detachable design of the wireless hair dryer facilitates cleaning and disinfection, and is more sanitary; the wireless hair dryer is usually fashionable in appearance design and can be used as part of home decoration. In view of the convenience, safety, sanitation and fashion in use of the wireless hair dryer, the wireless hair dryer is more and more popular among consumers. However, the wireless hair dryer has the problem that the hot air power may be not as strong as that of the wired hair dryer, affecting the hair drying effect. SUMMARY

[0003] To solve the above technical problems, the utility model provides a wind tube structure of hair dryer, heating efficiency is high, can adjust the wind speed and temperature, can let gas flow velocity accelerate to improve the air outlet efficiency.

[0004] The utility model discloses a technical scheme that is:

[0005] A wind tube structure of hair dryer, including the wind tube body, the downside of wind tube body is provided with the air inlet, be equipped with the air flow channel in the wind tube body, install ceramic heater in the air flow channel, the air flow channel's air inlet end and air outlet end all are provided with air flow inclined wall, the air inlet end is linked together with the air inlet, the air outlet end is equipped with the air outlet of inside big and outside small. The air flow inclined wall of the air inlet end can flow in the inclined surface to the air flow adsorption, produces local accelerated flow, simultaneously with the air flow of four around and forms the pressure difference, produces the boundary layer separation, and then forms the air flow vortex street phenomenon of the karman vortex in the wake region of the inclined surface, forms the air flow direction deflection under the action of the coriolis force and flows to the wind wall guide place. The air flow inclined wall of the air outlet end can also play the role of accelerated flow. The air outlet is big inside and small outside, and bernoulli's principle is formed, air compression is carried out, is released, and the acceleration of air flow is generated, so that the air outlet efficiency is improved.

[0006] Further, the ceramic heater is a hollow cylindrical structure, and the ceramic heater is provided with a plurality of heating air inlets.

[0007] Further, the heating air inlets are hexagonal honeycombs, which prevent gaps and save costs.

[0008] Further, the ceramic heater is electrically connected to the battery pack through an electrode.

[0009] Further, the ceramic heater is fixed in the wind tube body through a mica support.

[0010] Furthermore, the air duct body is provided with a mica slot for fixing the mica support.

[0011] Furthermore, the airflow inclined walls at the air inlet and air outlet are connected by a through-hole structure and fixed by mortise and tenon joints.

[0012] Furthermore, corrugated sheets are provided between the two end faces of the central structure and the end faces of the corresponding airflow inclined walls, which enhances the stability of the connected ends, increases the elasticity of the fasteners, and makes the structure more supportive.

[0013] Furthermore, a magnetic component is provided around the air outlet of the hair dryer body. The magnetic component is used to attract hair dryer accessories for various hairstyle styling purposes.

[0014] Furthermore, an infrared sensing system is installed on the front side of the middle section of the blower body to adjust the wind speed and temperature by sensing distance and temperature. This infrared sensing system senses the distance between the air outlet and the scalp, as well as the scalp temperature, and these two sensors adjust each other to create a comfortable environment for drying hair.

[0015] The beneficial effects of this utility model are:

[0016] 1. The inclined wall at the air inlet attracts airflow onto its inclined surface, creating localized acceleration. Simultaneously, it creates a pressure difference with the surrounding airflow, resulting in boundary layer separation. This leads to the formation of a Karman vortex street in the wake region of the inclined surface, where the airflow direction is deflected by the Coriolis force, flowing towards the guide wall. The inclined wall at the air outlet similarly accelerates the flow. The outlet's wider inner surface and narrower outer surface follow Bernoulli's principle, compressing and releasing air, thus accelerating the airflow and improving outlet efficiency.

[0017] 2. It adopts a ceramic heater, which provides uniform heating, good thermal conductivity, and long service life. The heating air outlet adopts a hexagonal honeycomb shape, which not only prevents gaps but also saves costs.

[0018] 3. An infrared sensing system is installed, which can adjust the wind speed and temperature based on the temperature and distance feedback from the infrared sensing system, protecting the user's safety and providing a comfortable hair drying environment.

[0019] 4. A magnetic attachment component is provided to attract hair dryer accessories for various hairstyles. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 for Figure 1 A cross-sectional structural diagram.

[0022] Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the waveform sheet installation of this utility model.

[0024] Figure 5 This is a schematic diagram of the waveform sheet of this utility model.

[0025] In the diagram, 1. Air duct body; 2. Air inlet; 3. Airflow channel; 4. Ceramic heater; 5. Sloping airflow wall; 6. Air outlet; 7. Mica support; 8. Mica slot; 9. Magnetic suction assembly; 10. Infrared sensing system; 11. Waveform sheet; 12. Central channel structure. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all alternatives, improvements and equivalents that may be included within the scope of the claims.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Example 1

[0031] Reference Figure 1 , Figure 2 This embodiment provides a blower casing structure, including a casing body 1. An air inlet 2 is provided on the lower side of the casing body 1. An airflow channel 3 is provided inside the casing body 1, and a ceramic heater 4 is installed inside the airflow channel 3. Both the air inlet and outlet ends of the airflow channel 3 are provided with inclined airflow walls 5. The air inlet end is connected to the air inlet 2, and the air outlet end has an outlet 6 that is larger inside and smaller outside. The inclined airflow wall 5 at the air inlet end of this invention can attract airflow onto the inclined surface, generating localized accelerated flow. Simultaneously, it creates a pressure difference with the surrounding airflow, resulting in boundary layer separation. Subsequently, a Karman vortex street phenomenon is formed in the wake region of the inclined surface, causing the airflow direction to deflect under the Coriolis force, flowing towards the guide wall. The inclined airflow wall 5 at the air outlet end also plays a role in accelerating the flow. The larger inside and smaller outside design of the outlet 6 forms a Bernoulli principle, compressing and releasing air, accelerating the airflow, thereby improving the airflow efficiency.

[0032] The ceramic heater 4 described in this embodiment is a hollow cylindrical structure with several heating air vents. These vents are hexagonal and honeycomb-shaped, preventing gaps and saving costs. The ceramic heater 4 heats the airflow evenly. It can be electrically connected to a battery pack via electrodes installed in corresponding grooves. The ceramic heater 4 is fixed to the air duct body 1 by a mica bracket 7. The air duct body 1 has a mica slot 8 for fixing the mica bracket 7. This invention uses the mica bracket 7 to prevent heat conduction and to fix the ceramic heater 4 in the correct position, preventing slippage. An infrared sensing system 10 can be installed on the front side of the air duct body 1 in this embodiment, used for distance and temperature sensing to adjust wind speed and temperature. The infrared sensing system 10 senses the distance between the air vent and the scalp and the scalp temperature, respectively, and adjusts these parameters to create a comfortable environment for drying hair.

[0033] In this embodiment, the air outlet 6 of the hair dryer body 1 is provided with a magnetic component 9 on its outer ring. The magnetic component 9 is used to attract hair dryer accessories for various hair styling purposes.

[0034] In use, the airflow flows forward and inward around the air inlet. After flowing forward, it enters the airflow channel. The inclined wall at the air inlet can attract the airflow onto the inclined surface, generating localized accelerated flow. At the same time, it creates a pressure difference with the surrounding airflow, resulting in boundary layer separation. Then, a wind vortex of the Karman vortex street phenomenon is formed in the wake region of the inclined surface. Under the action of the Coriolis force, the airflow direction is deflected, and the airflow flows along the pipe wall, presenting a vortex shape. It is squeezed out of the air outlet. It enters the ceramic heater along the airflow channel for uniform heating. The heated airflow flows towards the air outlet. The inclined wall at the air outlet can also accelerate the flow. The air outlet is wider at the inside and narrower at the outside, forming Bernoulli's principle, which compresses and releases the air, resulting in accelerated airflow.

[0035] This invention utilizes an inclined airflow wall to accelerate airflow. The air outlet, wider at the inside and narrower at the outside, follows Bernoulli's principle, compressing and releasing air to accelerate airflow and improve efficiency. A ceramic heater is used, ensuring even heating, good thermal conductivity, and a long lifespan. The hexagonal honeycomb design of the heating vent prevents gaps and saves costs. An infrared sensing system allows for adjustments to airflow speed and temperature based on temperature and distance feedback, ensuring user safety and providing a comfortable drying environment. A magnetic attachment component is included to hold hair dryer accessories for various styling options.

[0036] Example 2

[0037] Reference Figures 3-5 The difference between this embodiment and Embodiment 1 is that the airflow inclined walls 5 at the air inlet and air outlet ends are connected by a central through structure 12 and fixed by tenon and mortise joints. Waveform plates 11 are provided between the two end faces of the central through structure 12 and the corresponding end faces of the airflow inclined walls 5, enhancing the stability of the connected ends, increasing the elasticity of the fasteners, and making the structure more supportive.

[0038] The remaining structures and functions are as described in Example 1.

Claims

1. A hairdryer's nozzle structure, comprising a nozzle body, wherein an air inlet is provided on the lower side of the nozzle body, and an airflow channel is provided inside the nozzle body, characterized in that: A ceramic heater is installed in the airflow channel. Both the air inlet and outlet ends of the airflow channel are provided with airflow inclined walls. The air inlet end is connected to the air inlet port, and the air outlet end is provided with an air outlet that is larger inside and smaller outside.

2. The blower casing structure according to claim 1, characterized in that: The ceramic heater is a hollow cylindrical structure and is provided with several heating air vents.

3. The blower casing structure according to claim 2, characterized in that: The heating air vent has a hexagonal honeycomb shape.

4. The blower casing structure according to claim 1, characterized in that: The ceramic heater is electrically connected to the battery pack via electrodes.

5. The blower casing structure according to claim 1, characterized in that: The ceramic heater is fixed to the air duct body by a mica bracket.

6. The blower casing structure according to claim 5, characterized in that: The air duct body is provided with a mica slot for fixing the mica support.

7. The blower casing structure according to claim 1, characterized in that: The airflow inclined walls at the air inlet and air outlet are connected by a through-hole structure and fixed by mortise and tenon joints.

8. The blower casing structure according to claim 7, characterized in that: Waveform plates are provided between the two end faces of the central structure and the end faces of the corresponding airflow inclined walls.

9. The blower casing structure according to claim 1, characterized in that: A magnetic suction component is provided on the outer ring of the air outlet of the air duct body.

10. The blower casing structure according to claim 1, characterized in that: An infrared sensing system is installed on the front side of the middle section of the air duct body to adjust the wind speed and temperature by sensing distance and temperature.

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