Radio blower

Abstract

A wireless electric blower comprises a handle and an air outlet cylinder, the air outlet cylinder is installed at the upper end of the handle, an air inlet is formed in the lower end of the handle, a battery pack, a motor and a motor component set are sequentially installed in the handle from bottom to top, a ventilation pipeline is arranged on the inner side of the inner wall of the handle and communicated with the air inlet, and the air inlet is communicated with the air outlet. The ventilation pipeline is communicated with an air inlet of the air outlet cylinder; an air flow channel is arranged in the air outlet barrel, a ceramic heater is installed in the air flow channel, air flow inclined walls are arranged at the air inlet end and the air outlet end of the air flow channel, the air inlet end is communicated with the air inlet, and an air outlet with the large inside and the small outside is formed in the air outlet end. The air flow inclined walls of the air inlet end and the air outlet end can adsorb air flow to the inclined faces to flow, local accelerated flow is generated, the Bernoulli principle is formed at the air outlet, air compression and release are carried out, air flow acceleration is generated, and therefore the air outlet efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of hair dryers and relates to a cordless hair dryer. Background Art

[0002] Wireless hair dryers do not need to be bound by wires, can be moved freely, and are more convenient to use; wireless hair dryers are usually equipped with overheat protection and automatic power-off functions, which improves the safety of use; the detachable design of wireless hair dryers is easy to clean and disinfect, which is more hygienic; wireless hair dryers usually have a fashionable appearance and can be used as part of home decoration. In view of the convenience, safety, hygiene and fashion of wireless hair dryers, they are becoming more and more popular among consumers.

[0003] However, wireless hair dryers have disadvantages such as high price; they rely on batteries for power supply, and the battery life is limited, and they may need to be charged frequently; the hot air power may not be as strong as that of wired hair dryers, affecting the blowing effect; they are usually larger in size and take up more space. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a cordless hair dryer with high heating efficiency, adjustable wind speed and temperature, and the ability to accelerate gas flow and thus improve air outlet efficiency.

[0005] The technical solution adopted by the present invention is:

[0006] A cordless hair dryer includes a handle and an air outlet, wherein the air outlet is mounted on the upper end of the handle, an air inlet is provided at the lower end of the handle, a battery pack, a motor, and an electronic control chip are installed in the handle from bottom to top, a ventilation duct is provided on the inner side of the inner wall of the handle, the ventilation duct is connected to the air inlet, and the ventilation duct is connected to the air inlet of the air outlet; an air flow channel is provided in the air outlet, a ceramic heater is installed in the air flow channel, both the air inlet end and the air outlet end of the air flow channel are provided with an air flow oblique wall, the air inlet end is connected to the air inlet, and the air outlet end is provided with an air outlet that is larger inside and smaller outside. The air flow oblique wall at the air inlet end of the present invention can absorb the air flow to the inclined surface for flow, generate local accelerated flow, and at the same time form a pressure difference with the surrounding air flow, generate boundary layer separation, and then form a wind vortex of the Karman vortex street phenomenon in the wake area of ​​the inclined surface, and form a deflection of the air flow direction under the action of the Coriolis force, and flow to the wind wall guide. The inclined wall of the wind flow at the air outlet can also play a role in accelerating the flow. The air outlet is large inside and small outside, forming the Bernoulli principle, compressing and releasing the air, accelerating the air flow, and thus improving the air outlet efficiency.

[0007] Furthermore, a guide wall for guiding the direction of the air flow is arranged in the front side of the air inlet in the handle, so as to prevent the air flow from being blocked due to direct air flow.

[0008] Furthermore, an air filter is provided in the inner circle of the air inlet to filter the inhaled air and prevent large dust particles from entering.

[0009] Furthermore, the ceramic heater is a hollow cylindrical structure, and is provided with a plurality of heating tuyere.

[0010] Furthermore, the heating tuyere adopts a hexagonal honeycomb shape, which not only prevents the generation of gaps but also saves costs.

[0011] Furthermore, the ceramic heater is electrically connected to the battery pack via electrodes.

[0012] Furthermore, the ceramic heater is fixed in the air outlet tube through a mica bracket.

[0013] Furthermore, a mica slot for fixing the mica bracket is provided in the air outlet tube.

[0014] Furthermore, an infrared sensing system for adjusting wind speed and temperature by distance sensing and temperature sensing is installed on the front side of the middle part of the air outlet. The infrared sensing system senses the distance between the air outlet and the scalp and the scalp temperature respectively, and the two are adjusted to create a comfortable environment for drying and blowing hair.

[0015] Furthermore, the outer ring of the air outlet of the air outlet tube is provided with a magnetic component, which is used to absorb the accessories of the hair dryer product and perform various hairstyles.

[0016] Beneficial effects of the present invention:

[0017] 1. The wind flow inclined wall at the wind inlet end can absorb the wind flow to the inclined surface for flow, resulting in local accelerated flow, while forming a pressure difference with the surrounding airflow, resulting in boundary layer separation, and then forming a wind vortex of Karman vortex street phenomenon in the wake area of ​​the inclined surface, and under the action of Coriolis force, the air flow direction is deflected and flows toward the wind wall. The wind flow inclined wall at the wind outlet end can also play a role in accelerating the flow. The air outlet is large inside and small outside to form the Bernoulli principle, compressing and releasing the air, generating accelerated air flow, thereby improving the air outlet efficiency.

[0018] 2. Ceramic heater is used, which has uniform heating, good thermal conductivity and long service life. The heating tuyere adopts hexagonal honeycomb shape, which can prevent gaps and save costs.

[0019] 3. An infrared sensing system is set up, and the wind speed and temperature can be adjusted through the temperature and distance fed back by the infrared sensing system, which protects the safety of users and provides users with a comfortable hair drying environment.

[0020] 4. A magnetic suction component is provided to absorb the accessories of the hair dryer product so as to manage various hairstyles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure.

[0023] Figure 3 It is a structural schematic diagram of another embodiment of the present invention.

[0024] Figure 4 It is a schematic diagram of installing the corrugated sheet of the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the corrugated sheet of the present invention.

[0026] In the figure, 1. air filter; 2. battery pack; 3. ventilation duct; 4. motor; 5. electronic control chip; 6. handle; 7. air inlet; 8. ceramic heater; 9. infrared sensing system; 10. wind flow inclined wall; 11. magnetic suction component; 12. drainage guide wall; 13. electrode; 14. mica slot; 15. air outlet; 16. air inlet; 17. wind flow channel; 18. air outlet; 19. mica bracket; 20. central hole structure; 21. corrugated sheet. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with 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 possible alternatives, improvements and equivalents within the scope of the claims.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more, unless otherwise clearly defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] Reference Figure 1 , Figure 2 The present embodiment provides a cordless hair dryer, comprising a handle 6 and an air outlet 15, wherein the air outlet 15 is mounted at the upper end of the handle 6, and an air inlet 16 is disposed at the lower end of the handle 6, wherein a battery pack 2, a motor 4, and an electronic control chip 5 are sequentially mounted in the handle 6 from bottom to top, and a ventilation duct 3 is disposed on the inner side of the inner wall of the handle 6, wherein the ventilation duct 3 is connected to the air inlet 16, and wherein the ventilation duct 3 is connected to the air inlet 7 of the air outlet 15; wherein an air flow channel 17 is disposed in the air outlet 15, wherein a ceramic heater 8 is mounted in the air flow channel 17, and both the air inlet end and the air outlet end of the air flow channel 17 are provided with an air flow inclined wall 10, wherein the air inlet end is connected to the air inlet 7, and wherein an air outlet 18 having a larger inner side and a smaller outer side is disposed at the air outlet end. The air flow of the present invention can flow forward and inward at the air inlet 7, and then enter the wind channel 17 after flowing forward. The wind flow inclined wall 10 at the air inlet end can adsorb the wind flow on the inclined surface to flow, generating local accelerated flow, and at the same time forming a pressure difference with the surrounding air flow, generating boundary layer separation, and then forming a wind vortex of the Karman vortex street phenomenon in the wake area of ​​the inclined surface, and forming a deflection of the air flow direction under the action of the Coriolis force, and flowing toward the wind wall guide. The wind flow inclined wall 10 at the air outlet end can also play a role in accelerating the flow, and the air outlet 18 is large inside and small outside to form the Bernoulli principle, compressing and releasing the air, generating accelerated air flow, thereby improving the air outlet efficiency.

[0032] In the present embodiment, the handle 6 is provided with a guide wall 12 for guiding the direction of the air flow in the front side of the air inlet 7, which can prevent the air from flowing straight and causing air flow blockage. At the same time, air pressure is generated at the side end to enhance the air flow.

[0033] The air inlet 16 of the present embodiment is provided with an air filter 1 in its inner circle to filter the inhaled air and prevent large dust particles from entering.

[0034] The ceramic heater 8 described in this embodiment is a hollow cylindrical structure, and the ceramic heater 8 is provided with a plurality of heating vents. The heating vents are in a hexagonal honeycomb shape, which prevents the generation of gaps and saves costs. The ceramic heater 8 heats the air flow evenly. The ceramic heater 8 is electrically connected to the battery pack 2 via an electrode 13. The electrode 13 is installed in a corresponding groove. The ceramic heater 8 is fixed in the air outlet 15 via a mica bracket 19. A mica slot 14 for fixing the mica bracket 19 is provided in the air outlet 15. The present invention adopts a mica bracket 19 to prevent temperature conduction, and at the same time fixes the ceramic heater 8 in a corresponding position to prevent sliding.

[0035] Preferably, see Figure 3-5 The wind flow inclined walls 10 at the wind inlet and wind outlet are connected by a central through structure 20 and fixed by eyelet mortise and tenon joints. Corrugated sheets 21 are arranged between the two end faces of the central through structure 20 and the end faces of the corresponding wind flow inclined walls 10, which enhances the stability of the two connected ends, increases the elasticity of the fixings, and makes the structure more supportive.

[0036] The central front side of the air outlet 15 of this embodiment is equipped with an infrared sensing system 9 for distance sensing and temperature sensing to adjust the wind speed and temperature. The infrared sensing system 9 senses the distance between the air outlet and the scalp and the scalp temperature respectively, and the two are adjusted to create a comfortable environment for drying and blowing the hair.

[0037] The outer ring of the air outlet of the air outlet tube 15 in this embodiment is provided with a magnetic attraction component 11. The magnetic attraction component 11 is used to attract the accessories of the hair dryer product to perform various hairstyles.

[0038] The battery pack 2 of this embodiment can be charged externally, and the infrared sensing system 9, the ceramic heater 8 and the motor 4 can all be connected to the electronic control chip 5 and controlled by the electronic control chip 5.

[0039] When the present invention is used, the power is turned on, the motor 4 starts to work, and suction is generated to absorb ambient air from the outside. The air flow enters from the air inlet 16, enters the ventilation duct 3 after being filtered by the air filter 1, flows along the ventilation channel 3, follows the direction of suction, flows to the motor 4, and at the same time absorbs the heat emitted by the battery pack when it is working to prevent the battery pack from overheating. The air flow is guided to the air inlet 7 by the guide wall 12, flows forward and inward around the air inlet 7, and enters the wind flow channel after flowing forward. The wind flow inclined wall 10 at the air inlet end can absorb the wind flow on the inclined surface for flow, thereby generating local accelerated flow, and at the same time forming a pressure difference with the surrounding air flow, generating boundary layer separation, and then forming a wind vortex of the Karman vortex street phenomenon in the wake area of ​​the inclined surface. Under the action of the Coriolis force, the air flow direction is deflected, and the air flow flows along the pipe wall, presenting a vortex shape, and is squeezed out of the air outlet; it flows forward along the wind flow channel and enters the ceramic heater 8 for uniform heating. The heated air flow flows to the air outlet 18. The wind flow inclined wall 10 at the air outlet end can also play a role in accelerating the flow. The air outlet 18 is large inside and small outside, forming the Bernoulli principle, compressing and releasing the air, thereby generating accelerated air flow.

[0040] The present invention adopts a ceramic heater 8, which has uniform heating, good thermal conductivity and long service life. The heating air outlet adopts a hexagonal honeycomb shape, which not only prevents the generation of gaps but also saves costs. A sensing device is provided, and the wind speed and temperature can be adjusted according to the temperature and distance fed back by the sensing device, thereby protecting the safety of the user and providing the user with a comfortable hair drying environment. A magnetic suction component is provided to absorb the accessories of the hair dryer product for various hairstyles.

Claims

1. A cordless hair dryer, comprising a handle and an air outlet, wherein the air outlet is mounted on the upper end of the handle, an air inlet is arranged at the lower end of the handle, a battery pack, a motor, and an electronic control chip are sequentially mounted in the handle from bottom to top, a ventilation duct is arranged on the inner side of the inner wall of the handle, the ventilation duct is connected to the air inlet, and the ventilation duct is connected to the air inlet of the air outlet; characterized in that: An air flow channel is provided in the air outlet cylinder, a ceramic heater is installed in the air flow channel, an air inlet end and an air outlet end of the air flow channel are both provided with air flow inclined walls, the air inlet end is connected with an air inlet, and the air outlet end is provided with an air outlet which is larger inside and smaller outside.

2. A cordless hair dryer according to claim 1, characterized in that: A flow guide wall for guiding the direction of air flow is arranged in the handle at the front side of the air inlet.

3. A cordless hair dryer according to claim 1, characterized in that: The inner circle of the air inlet is provided with an air filter.

4. The cordless hair dryer according to claim 1, characterized in that: The ceramic heater is a hollow cylindrical structure and is provided with a plurality of heating tuyere.

5. A cordless hair dryer according to claim 4, characterized in that: The heating tuyere is in a hexagonal honeycomb shape.

6. The cordless hair dryer according to claim 1, characterized in that: The ceramic heater is electrically connected to the battery pack through electrodes.

7. The cordless hair dryer according to claim 1, characterized in that: The ceramic heater is fixed in the air outlet cylinder through a mica bracket.

8. A cordless hair dryer according to claim 7, characterized in that: A mica slot for fixing the mica bracket is arranged in the air outlet tube.

9. The cordless hair dryer according to claim 1, characterized in that: An infrared sensing system for adjusting wind speed and temperature by performing distance sensing and temperature sensing is installed on the front side of the middle part of the air outlet tube.

10. The cordless hair dryer according to claim 1, characterized in that: The outer ring of the air outlet of the air outlet cylinder is provided with a magnetic attraction component.

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