CN115644582A

CN115644582A - Air blowing device and hair care appliance

Info

Publication number: CN115644582A
Application number: CN202211362251.5A
Authority: CN
Inventors: 林章敏; 陈彬
Original assignee: Shenzhen Chaowei System Technology Co ltd
Current assignee: Shenzhen Chaowei System Technology Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-01-31

Abstract

The invention discloses a blowing device and a hair care appliance, wherein an outer shell is sleeved on the outer side surface of an inner shell, the inner shell is communicated with a fan, a passive air duct is formed between the outer shell and the inner shell, and an active air duct is formed inside the inner shell, so that the passive air duct is enclosed on the outer peripheral side of the active air duct. Meanwhile, the inner shell positioned in the outer shell has a smaller volume, and the active airflow can have a higher wind gathering effect under the same output power, so that the airflow with higher flow speed can be output.

Description

Air blowing device and hair care appliance

Technical Field

The invention relates to the field of blowing equipment, in particular to a blowing device and a hair care appliance.

Background

A section of thick bamboo of blowing is a traditional hair care utensil, generally is provided with the casing that the handle can be used to the air-out, and the user aims at the head with the casing through handheld handle, can improve the regional air flow of hair, simultaneously, still is provided with the heater in the casing to the wind that will blow off has higher temperature.

For example, in the chinese patent application with application number 2020105789391, referring to fig. 1 specifically, the wind duct 1 and the handle 2 are communicated, so that active wind enters the annular cavity 16, and based on bernoulli effect, the second wind inlet channel 17 can be driven to form a passive wind duct, thereby increasing wind volume.

This kind of mode borrows the mode that the bernoulli effect improves the amount of wind still has the great problem of noise, because its annular cavity is enclosed by the outer wall of dryer 1 and closes and form, and the air current that is located the inside fan 5 of handle and blows out can be at first perpendicular or have the outer wall of certain little contained angle direct striking dryer 1, change the wind direction under the effect of bending of dryer 1 outer wall, just can outwards air exhaust smoothly, and the air current is close to the outer wall of perpendicular direction striking dryer 1, can bring great noise, this also is the general problem that present dryer faces.

Disclosure of Invention

The invention provides a blowing device, and aims to solve the problem that the existing blowing device is high in noise.

According to the embodiment of the application, the blowing device comprises an outer shell and an inner shell, wherein the outer shell is sleeved on the side surface of the inner shell, a passive air duct is formed between the outer shell and the inner shell, the inner shell is communicated with a fan, and an active air duct is formed inside the inner shell; the passive air duct is annularly arranged on the side surface of the active air duct, the active air duct is communicated with the fan, and the fan pushes the active air duct to exhaust air outwards; the passive air duct forms airflow in the same direction based on the exhaust of the active air duct.

Preferably, the active air duct is provided with an active air outlet at one end of the inner shell, the passive air duct is provided with a passive air outlet, and the passive air outlet and the active air outlet are arranged on the same side of the inner shell.

Preferably, the passive air outlet is arranged on the side surface of the air exhaust path of the active air outlet.

Preferably, a flow guide grid is arranged at the position of the passive air outlet, and the flow guide grid is positioned between the outer shell and the inner shell.

Preferably, the blowing device further comprises a drainage shell, the drainage shell is coaxially arranged with the inner shell, and the drainage shell is positioned at one end, close to the air exhaust direction, of the inner shell; a gap between the inner shell and the drainage shell forms the active air outlet; the gap between the inner shell and the drainage shell is gradually reduced in the air exhaust direction.

Preferably, the outer shell has a gap between an end facing away from the exhaust direction and the inner shell.

The present invention also provides a hair care appliance, comprising any one of the above blowing devices, further comprising: the handle is connected with the side face of the shell, and the fan is arranged in the handle; one end of the handle, which is far away from the shell, is provided with a driving air inlet; the handle interior communicates with the inner shell.

Preferably, the inner side surface of the active air inlet is provided with first noise reduction cotton, and the first noise reduction cotton is provided with a plurality of holes.

Preferably, the inner shell and/or the outer shell are/is provided with second noise reduction cotton at the position far away from the inner side surface of the handle.

Preferably, a heating wire is positioned in the active air duct, and the second noise reduction cotton and the heating wire are sequentially arranged in the air exhaust direction.

Compared with the prior art, the air blowing device and the hair care appliance provided by the invention have the following beneficial effects:

through locating the lateral surface of inner shell with the shell cover, inner shell intercommunication fan, and form passive wind channel through between shell and the inner shell, the inside of inner shell forms the initiative wind channel, make passive wind channel enclose the periphery side of closing in the initiative wind channel, when the initiative wind channel forms the outside discharge of initiative air current, the wall that lies in the passive wind channel of shell can not be strikeed by the initiative air current, and the production of passive air current can not form the striking to the shell wall yet with flowing, also promptly passive wind channel can regard as the isolation layer to reduce the various noises that produce in the initiative wind channel, can effectively reduce the noise that the product outwards worn out, improve user's use and experience. Meanwhile, the inner shell positioned in the outer shell has a smaller volume, and the active airflow can have a higher wind gathering effect under the same output power, so that the airflow with higher flow speed can be output.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a blowing device according to a first embodiment of the present invention.

Fig. 2 is an exploded view of a blowing device according to a first embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an active air duct and a passive air duct inside a blowing device according to a first embodiment of the present invention.

Fig. 4 is a schematic view of an exploded structure at another angle of the blowing device according to the first embodiment of the present invention.

Fig. 5 is a schematic structural view of a hair care device according to a second embodiment of the present invention.

Fig. 6 is a sectional view of the interior of a hair care device according to a second embodiment of the present invention.

Fig. 7 is a schematic view of another angle structure of a hair care device according to a second embodiment of the present invention.

Description of the reference symbols:

1. a housing; 11. a passive air outlet; 12. a baffle plate; 13. first noise reduction cotton; 14. second noise reduction cotton; 15. a magnet; 16. an active air inlet;

2. an inner shell; 21. an active air outlet;

3. a drainage shell;

4. a handle; 41. a control button; 5. a fan;

100. a passive air duct; 200. an active air duct; 300. a flow-guiding grid; 400. a heating wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1, 2 and 3, a first embodiment of the present invention discloses a blowing device, which includes an outer casing 1 and an inner casing 2, wherein the outer casing 1 is sleeved on a side surface of the inner casing 2, a passive air duct 100 is formed between the outer casing 1 and the inner casing 2, the inner casing 2 is communicated with a fan, and an active air duct 200 is formed inside the inner casing 2.

As shown in fig. 2, the passive air duct 100 is disposed around the side of the active air duct 200, and the active air duct 200 is communicated with the fan, which pushes the active air duct 200 to exhaust air outwards. The passive air duct 100 forms air flows in the same direction based on the exhaust of the active air duct 200.

As shown in fig. 1, an arrow P indicates an air outlet direction of the blowing device.

It can be understood that, based on the bernoulli effect, when the air flows in the active air duct 200 and is discharged outwards, the passive air duct 100 that is discharged from the same side forms a passive air flow synchronously, so as to achieve the effect of increasing the air volume.

It is understood that the blower may be disposed inside the inner casing 2, and the blowing direction of the blower is the same as the direction of the outwardly discharged airflow, or the blower may be disposed outside the outer casing 1 or the blowing device, as long as it is ensured that the airflow blown by the blower enters the inner casing 2 and is outwardly discharged from the inner casing 2, which is not limited herein.

Referring to fig. 3, the active air duct 200 is provided with an active air outlet 21 at one end of the inner casing 2, the passive air duct 100 is provided with a passive air outlet 11, the passive air outlet 11 and the active air outlet 21 are disposed at the same side of the inner casing 2, that is, the air outlet positions of the active air duct 200 and the passive air duct 100 are both located at the same side of the blowing device.

The passive air outlet 11 is disposed on a side surface of the active air outlet 21 on the air exhaust path, as shown in fig. 3, the length of the outer shell 1 in the air exhaust direction is greater than that of the inner shell 2, so that the passive air outlet 11 is disposed on the side surface of the active air outlet 21 on the air exhaust path, and therefore the passive air outlet 11 is disposed on the side surface of the front end of the active air outlet 21, when the active air outlet 21 exhausts air, the air flow passes through the passive air outlet 11, thereby causing the air pressure at the position of the passive air outlet 11 to be reduced, and forming a passive air flow.

It can be understood that when the active air outlet 21 discharges air outwards, the pressure at the position of the passive air outlet 11 located on the side of the air discharge path is reduced, and a passive air flow can be formed based on the pressure difference between the two ends of the passive air duct 100. Meanwhile, based on the driving effect of the active airflow, the air near the passive air outlet 11 can be driven to move by the active airflow, and compared with the traditional 'plane' passive air-out mode, the passive air-out effect with higher efficiency can be achieved in the present embodiment.

It can be understood that, as shown in fig. 3 and 4, a gap is formed between one end of the outer casing 1 facing away from the air discharge direction and the inner casing 2, and the gap serves as a passive air inlet of the passive air duct 100. Specifically, a baffle 12 is arranged at one end of the outer shell 1, which is away from the air exhaust direction, and the position of the inner shell 2 at the baffle 12 is a concave structure C, so that the gap is formed between the baffle 12 and the concave structure C, and the airflow enters the inner shell 2 from the lower end of the baffle 12 and enters the passive air duct 100, so that a U-shaped or L-shaped airflow enters the passive air duct 100.

Referring to fig. 2, a flow guiding grid 300 is disposed at the position of the passive air outlet 11, and the flow guiding grid 300 is positioned between the outer shell 1 and the inner shell 2. The flow guiding grid 300 is provided with a plurality of flow guiding openings, and when the passive airflow passes through the flow guiding grid 300, the passive airflow is guided by the flow guiding openings to be discharged outwards.

It can be understood that the flow guide grid 300 can discharge the passive airflow to a uniform direction, avoid disordered airflow, improve the stability of airflow output and improve the use experience of users.

With reference to fig. 3, the blowing device further includes a flow guiding shell 3, the flow guiding shell 3 is disposed coaxially with the inner shell 2, a gap between the inner shell 2 and the flow guiding shell 3 forms the active air outlet 21, and the gap between the inner shell 2 and the flow guiding shell 3 is gradually reduced in an air discharging direction, so that the air discharged to the outside gradually decreases in caliber to increase the flow rate.

It can be understood that, in the embodiment, because the passive air duct 100 of the outer shell 1 is located at the outer peripheral side of the active air duct 200 formed inside the inner shell 2, when the active air duct 200 exhausts air outwards, the wall surface of the passive air duct 100 located at the outer shell 1 is not impacted by the active air flow, that is, the passive air duct 100 can be used as an isolation layer to reduce various noises generated in the active air duct 200, so that the noises which penetrate out of the product can be effectively reduced, and the use experience of the user is improved. Meanwhile, the inner shell 2 positioned inside the outer shell 1 has a smaller volume, and the active airflow can have a higher wind gathering effect under the same output power, so that airflow with higher flow speed can be output.

It can be understood that, in this embodiment, the outer shell 1 and the inner shell 2 are cylindrical structures, in other embodiments, the outer shell 1 and the inner shell 2 may also be provided with structures with rectangular, rhombic, or elliptical cross sections, as long as the outer shell 1 can be sleeved on the outer side of the inner shell 2 to form the active air duct 200 and the passive air duct 100, which is not limited herein.

Referring to fig. 5 and 6, a hair care device for drying hair or styling hair by moving air in a predetermined area is provided according to a second embodiment of the present invention. The blowing device comprises the blowing device provided by the first embodiment and further comprises a handle 4, the handle 4 is connected with the side face of the shell 1, and the fan 5 is arranged in the handle 4. The handle 4 is kept away from the one end of shell 1 has seted up initiative air intake 16, inside and the inner shell 2 intercommunication of handle 4, when fan 5 during operation, during the outside gas from initiative air intake 16 suction to handle 4, and then flow to inner shell 2 and outwards discharge through initiative air intake 200 at last.

The inner side surface of the active air inlet 16 is provided with first noise reduction cotton 13, a plurality of holes are formed in the first noise reduction cotton 13, and the first noise reduction cotton 13 can reduce noise of the active air inlet 16 at the air inlet moment.

Referring to fig. 6, the inner shell 2 and/or the outer shell 1 are provided with second noise reducing cotton 14 at an inner side surface position far away from the handle 4, for example, the second noise reducing cotton 14 located at the inner shell 2 can be used as a buffer layer of air flow to reduce noise generated by impacting on a wall surface of the inner shell 2, and the second noise reducing cotton 14 located at the inner side surface of the outer shell 1 can further reduce noise penetrating out of the inner shell 2, so that the hair care appliance has a lower noise level when working.

Referring to fig. 6, the heating wire 400 is disposed in the active air duct 200, the heating wire 400 and the second noise reduction cotton 14 are disposed in sequence in the air exhaust direction, that is, the heating wire 400 is disposed at a side close to the active air outlet 21, when the active air flow enters the inner casing 2 from the handle 4, the noise reduction process is performed by the second noise reduction cotton 14, and then the active air flow is heated by the heating wire 400 and finally discharged outside.

It can be understood that the heating wire 400 and the fan 5 may be powered by an internal power supply, or may also be powered by an external power supply device, in this embodiment, one end of the handle 4 away from the housing 1 is connected to a power line for connecting an external power supply facility.

It can be understood that, referring to fig. 7, in the present embodiment, a control button 41 is disposed on the handle 4, and the control button 41 is used for controlling the start and stop of the fan 5, the rotation speed of the fan 5, the start and stop of the heating wire 400, and the like.

With reference to fig. 2, a magnet 15 is positioned at one end of the housing 1 in the air discharge direction, the magnet 15 is embedded in the housing 1, and the magnet 15 is flush with the surface of the housing 1 at the end surface. The magnet 15 is used for magnetically attracting air nozzles with different functions so as to meet the requirements of different users.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a blast apparatus which characterized in that: the fan comprises an outer shell and an inner shell, wherein the outer shell is sleeved on the side surface of the inner shell, a passive air duct is formed between the outer shell and the inner shell, the inner shell is communicated with a fan, and an active air duct is formed inside the inner shell;

the passive air duct is annularly arranged on the side surface of the active air duct, the active air duct is communicated with the fan, and the fan pushes the active air duct to exhaust air outwards;

the passive air duct forms airflow in the same direction based on the exhaust of the active air duct.

2. A blowing device according to claim 1, characterized in that: the active air duct is provided with an active air outlet at one end of the inner shell, the passive air duct is provided with a passive air outlet, and the passive air outlet and the active air outlet are arranged at the same side of the inner shell.

3. The blowing device according to claim 2, characterized in that: the passive air outlet is arranged on the side face of the air exhaust path of the active air outlet.

4. The blowing device according to claim 2, characterized in that: and a flow guide grid is arranged at the position of the passive air outlet and positioned between the outer shell and the inner shell.

5. A blowing device according to claim 2, characterized in that: the blowing device further comprises a drainage shell, the drainage shell and the inner shell are coaxially arranged, and the drainage shell is positioned at one end, close to the air exhaust direction, of the inner shell;

the gap between the inner shell and the drainage shell forms the active air outlet;

the gap between the inner shell and the drainage shell is gradually reduced in the air exhaust direction.

6. The blowing device of claim 1, wherein: a gap is formed between one end of the outer shell, which is far away from the air exhaust direction, and the inner shell.

7. A hair care appliance characterized by: blowing device comprising any of the above claims 1-6, further comprising: the handle is connected with the side face of the shell, and the fan is arranged in the handle;

one end of the handle, which is far away from the shell, is provided with a driving air inlet;

the handle interior is in communication with the inner shell.

8. The hair care appliance of claim 7, wherein: the inner side surface of the active air inlet is provided with first noise reduction cotton, and a plurality of holes are formed in the first noise reduction cotton.

9. The hair care appliance of claim 7, wherein: and the inner shell and/or the outer shell are/is provided with second noise reduction cotton at the position of the inner side surface far away from the handle.

10. The hair care appliance of claim 9, wherein: the heating wire is positioned in the active air duct, and the second noise reduction cotton and the heating wire are sequentially arranged in the air exhaust direction.