CN117731051A

CN117731051A - Spray head assembly, electronic atomization device and control method thereof

Info

Publication number: CN117731051A
Application number: CN202311199446.7A
Authority: CN
Inventors: 周瑞龙
Original assignee: Shenzhen Moore Health Medical Technology Co ltd
Current assignee: Shenzhen Moore Health Medical Technology Co ltd
Priority date: 2023-09-15
Filing date: 2023-09-15
Publication date: 2024-03-22

Abstract

The application provides a spray head assembly, an electronic atomization device and a control method thereof. The spray head assembly includes: a base and a nozzle; the base is provided with a liquid inlet channel, a first air inlet channel and a second air inlet channel; the nozzle is arranged on the base and is provided with an inner flow channel and an outer flow channel; the liquid inlet channel is communicated with the inner flow channel so as to supply liquid to the inner flow channel; the first air intake passage communicates with the outer flow passage to supply air thereto; the second air inlet channel is communicated with the inner flow channel and is positioned at the upstream of the inner flow channel along the liquid inlet path of the inner flow channel. When the spray head assembly stops atomizing, the air can be supplied to the second air inlet channel to blow away the residual atomized medium in the nozzle, so that the problem of nozzle blockage caused by the residual atomized medium in the nozzle is avoided.

Description

Spray head assembly, electronic atomization device and control method thereof

Technical Field

The invention relates to the technical field of electronic atomization, in particular to a spray head assembly, an electronic atomization device and a control method of the electronic atomization device.

Background

Electronic nebulizers generally include a reservoir and a spray head assembly. The liquid storage bin stores atomized media; the spray head assembly comprises a nozzle, the nozzle is communicated with the liquid storage bin, and the spray head assembly is used for atomizing an atomized medium to form aerosol and spraying the aerosol. However, existing showerhead assemblies have nozzles that are prone to clogging problems.

Disclosure of Invention

The application provides a spray head assembly, an electronic atomization device and a control method thereof, and aims to solve the problem that nozzles of the existing spray head assembly are easy to block.

In order to solve the technical problems, one technical scheme adopted by the application is as follows: a showerhead assembly is provided. The spray head assembly includes: a base and a nozzle; the base is provided with a liquid inlet channel, a first air inlet channel and a second air inlet channel; the nozzle is arranged on the base and is provided with an inner flow channel and an outer flow channel; the liquid inlet channel is communicated with the inner flow channel so as to supply liquid to the inner flow channel; the first air intake passage communicates with the outer flow passage to supply air thereto; the second air inlet channel is communicated with the inner flow channel and is positioned at the upstream of the inner flow channel along the liquid inlet path of the inner flow channel.

The second air inlet channel is communicated with the liquid inlet channel and is communicated with the inner flow channel through the liquid inlet channel.

The liquid inlet channel comprises a first liquid inlet pipeline and a second liquid inlet pipeline, and the first liquid inlet pipeline is directly communicated with the inner flow channel; the second liquid inlet pipeline is communicated with the first liquid inlet pipeline, and the extending direction of the second liquid inlet pipeline and the extending direction of the first liquid inlet pipeline are obliquely arranged at a preset angle; the second air inlet channel is communicated with the second liquid inlet pipeline; the preset angle is greater than 30 degrees and less than or equal to 150 degrees.

The extending direction of the first liquid inlet pipeline and the extending direction of the second air inlet channel are respectively parallel to the axial direction of the base, and the extending direction of the second liquid inlet pipeline is perpendicular to the axial direction of the base; the second air inlet channel is communicated with the position, close to the first air inlet channel, of the second air inlet channel.

Wherein the base is also provided with an accommodating groove; the nozzle is arranged in the accommodating groove and is defined with the accommodating groove to form a buffer cavity, and the inner flow passage, the liquid inlet passage and the second air inlet passage are respectively communicated with the buffer cavity.

The accommodating groove comprises a first groove body and a second groove body which are communicated with each other; the part of the nozzle is sleeved in the second groove body through the first groove body and is arranged at intervals with the bottom wall of the second groove body so as to be matched with the second groove body to form the buffer cavity.

The extending direction of the liquid inlet channel and the extending direction of the second air inlet channel are perpendicular to the axial direction of the base respectively; the extending direction of the first air inlet passage is parallel to the axial direction of the base.

In order to solve the technical problems, another technical scheme adopted by the application is as follows: an electronic atomizing device is provided. The electronic atomization device comprises a spray head assembly, a liquid storage assembly and a gas supply assembly; wherein the spray head assembly is the spray head assembly related to above; the liquid storage component is communicated with the liquid inlet channel and used for storing an atomization medium and providing the atomization medium for the spray head component through the liquid inlet channel; the gas supply assembly is respectively communicated with the first gas inlet channel and the second gas inlet channel and is used for storing gas and supplying gas to the first gas inlet channel and/or the second gas inlet channel.

Wherein, the air supply assembly includes:

an air pump;

the air supply pipeline comprises a main pipeline, a first branch pipeline and a second branch pipeline, wherein the first branch pipeline and the second branch pipeline are communicated with the main pipeline, the main pipeline is communicated with the air pump, the first branch pipeline is communicated with the first air inlet channel, and the second branch pipeline is communicated with the second air inlet channel.

Wherein, the air supply assembly further includes:

and the switch valve is arranged in the second branch pipeline and used for controlling the communication and closing of the second branch pipeline.

In order to solve the technical problem, another technical scheme adopted by the application is as follows: there is provided a control method of an electronic atomizing apparatus as described above, the control method including: opening a liquid storage component and a gas supply component, and enabling the liquid storage component to supply liquid to an inner flow channel of a nozzle through a liquid inlet channel, and enabling the gas supply component to supply gas to an outer flow channel of the nozzle through a first gas inlet channel so as to atomize an atomized medium in the nozzle; and responding to the liquid storage component to stop liquid supply, and enabling the air supply component to supply air to the inner flow passage of the nozzle through the second air inlet channel so as to blow out the atomized medium in the nozzle.

Wherein, still include: and closing the air supply assembly and the switch valve in response to the air supply time of the air supply assembly through the second air inlet channel reaching a preset time.

The beneficial effect of this application embodiment is different from prior art: the spray head assembly comprises a base and a spray nozzle, wherein the base is provided with a liquid inlet channel, a first air inlet channel and a second air inlet channel; the nozzle is arranged on the base and is provided with an inner flow channel and an outer flow channel; the liquid inlet channel is communicated with the inner flow channel to supply liquid to the inner flow channel; the first air inlet channel is communicated with the outer flow channel so as to supply air to the outer flow channel; the second air inlet channel is communicated with the inner runner and located at the upstream of the inner runner along the liquid inlet path of the inner runner; therefore, the air flow entering the second air inlet channel can flow through the inner flow channel of the nozzle, and when the nozzle assembly stops atomizing, the air can be supplied to the second air inlet channel to blow away the residual atomized medium in the nozzle, so that the problem that the nozzle is blocked due to the residual atomized medium in the nozzle is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of a showerhead assembly according to one embodiment of the present application;

FIG. 2 is a cross-sectional view, A-A, of the showerhead assembly of FIG. 1, provided in accordance with one embodiment of the present application;

FIG. 3 is a schematic view of the nozzle of FIG. 2 prior to assembly with a base;

FIG. 4 is a schematic view of the overall structure of a showerhead assembly according to another embodiment of the present application;

FIG. 5 is a B-B cross-sectional view of the showerhead assembly of FIG. 4 provided in an embodiment of the present application;

FIG. 6 is a C-C cross-sectional view of the showerhead assembly of FIG. 4 according to one embodiment of the present application;

FIG. 7 is a schematic diagram of an electronic atomizing device according to an embodiment of the present disclosure;

fig. 8 is a flowchart of a control method of an electronic atomization device according to an embodiment of the present application.

Description of the reference numerals

10-a spray head assembly; 1-a base; 11-a liquid inlet channel; 111-a first liquid inlet pipeline; 112-a second liquid inlet pipeline; 12-a first air intake passage; 13-a second intake passage; 14-a containing groove; 141-a first tank body; 142-a second tank; 15-a buffer chamber; 2-nozzles; 2 A-A spraying part; 2 b-flange portion; 21-an inner flow passage; 211-a liquid inlet; 212-spraying ports; 22-an outer flow channel; 20-a liquid storage component; 30-an air supply assembly; 31-an air pump; 32-an air supply pipeline; 321-main pipeline; 322-first branch line; 323-second branch line; 33-a switch valve; 4-protective cover.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "first," "second," "third," and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the related art, the nozzle of the spray head assembly is more prone to blockage problems. The inventor of the application has long-term research and found that; after atomization, the nozzle assembly is usually provided with residual atomized medium inside, and the residual atomized medium stays in the nozzle for a long time to solidify, so that the problems of nozzle blockage and atomized medium deterioration, influence on user experience and the like are easily caused.

Therefore, the embodiment of the application provides a shower nozzle subassembly, through set up an air inlet channel in the upper reaches of the internal runner of nozzle to after stopping atomizing, through supplying air to this air inlet channel, with the atomizing medium of blowing away in the nozzle, avoid atomizing medium to remain in the nozzle and lead to nozzle jam and atomizing medium rotten, influence user experience scheduling problem.

The present application is described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 1 to 3, fig. 1 is a schematic view of an overall structure of a showerhead assembly according to an embodiment of the present disclosure; FIG. 2 is a cross-sectional view, A-A, of the showerhead assembly of FIG. 1, provided in accordance with one embodiment of the present application; FIG. 3 is a schematic view of the nozzle of FIG. 2 prior to assembly with a base. In this embodiment, a spray head assembly 10 is provided for atomizing an atomized medium to form an aerosol and spray out. Wherein, the atomizing medium can be liquid matrix such as oil added with aroma components, liquid medicine, etc.

As shown in fig. 2, the spray head assembly 10 includes a base 1 and a spray nozzle 2. The base 1 has a liquid inlet passage 11, a first air inlet passage 12, and a second air inlet passage 13. The feed channel 11 is adapted to communicate with a reservoir assembly 20 (see fig. 7 below) for supplying liquid to the nozzle 2. The nozzle 2 is provided on the base 1 and has an inner flow path 21 and an outer flow path 22. The inner flow passage 21 has opposite liquid inlet 211 and spray inlet 212; the liquid inlet passage 11 communicates with the liquid inlet 211 of the inner flow passage 21 to supply liquid to the inner flow passage 21. The aperture of the spray opening 212 of the inner flow passage 21 is much smaller than the aperture of the liquid inlet 211. Specifically, the liquid inlet 211 and the spray outlet 212 are disposed opposite to each other in the axial direction Y of the base 1. The first intake passage 12 communicates with the outer flow passage 22 to supply high-speed gas to the outer flow passage 22. In operation, the outer high velocity gas jet at the spray orifice 212 shears the liquid stream emitted from the spray orifice 212 and breaks the liquid into fine particles, thereby forming a spray, i.e., an aerosol. The second intake passage 13 communicates with the inner flow passage 21 and is located upstream of the inner flow passage 21 along the intake path of the inner flow passage 21. Wherein "the second intake passage 13 is located upstream of the inner flow passage 21" means that the gas or liquid in the second intake passage 13 will flow through the inner flow passage 21.

The second air inlet channel 13 is positioned upstream of the inner flow channel 21 by communicating the second air inlet channel 13 with the inner flow channel 21 and along the liquid inlet path of the nozzle 2; in this way, the air flow entering the second air inlet channel 13 will flow through the inner flow channel 21, so that when the nozzle 2 assembly stops atomizing, the air can be supplied into the second air inlet channel 13 to blow away the atomized medium remained in the nozzle 2, so as to avoid the problems of blockage of the nozzle 2, deterioration of the atomized medium and the like caused by the residual atomized medium in the nozzle 2.

In one embodiment, referring to fig. 2 and 3, the base 1 further has a receiving groove 14, and the nozzle 2 is disposed in the receiving groove 14 of the base 1. The receiving groove 14 may be formed at one end surface of the base 1 in the axial direction Y thereof. As shown in fig. 3, the accommodating groove 14 may include a first groove body 141 and a second groove body 142, where the first groove body 141 and the second groove body 142 may each have a hollow column shape, and the aperture of the second groove body 142 is smaller than that of the first groove body 141. Specifically, the second groove 142 is formed on the bottom wall of the first groove 141 along the axial direction Y of the base 1, and the liquid inlet channel 11 specifically extends to the bottom wall of the second groove 142 and is in communication with the second groove 142.

The nozzle 2 includes a spray portion 2a and a flange portion 2b. The spraying portion 2a defines an inner flow passage 21, and a portion of the spraying portion 2a is sleeved in the second tank 142 and abuts against the bottom wall of the second tank 142. The flange portion 2b is provided outside the spraying portion 2a, and is provided around the spraying portion 2a in a circle in the circumferential direction. The flange portion 2b defines a plurality of outer flow passages 22, and the plurality of outer flow passages 22 are arranged at intervals around the circumference of the spraying portion 2 a. In a specific embodiment, the flange portion 2b abuts against the inner wall surface of the first groove 141, and the flange portion 2b may be specifically disposed at a distance from the bottom wall of the first groove 141; the air flow in the first air inlet channel 12 flows out through the plurality of outer flow channels 22, and the atomized medium flowing out from the spraying openings 212 is sheared to be atomized into aerosol. The nozzle 2 is supplied with liquid through the liquid inlet channel 11 and with air through the first air inlet channel 12, and other specific working principles for atomizing and forming aerosol can be seen in the prior art.

In one embodiment, as shown in fig. 2, the second air intake passage 13 specifically communicates with the liquid intake passage 11, and communicates with the inner flow passage 21 through the liquid intake passage 11. When atomization is stopped, air flows through the liquid inlet channel 11 and enters the inner flow channel 21 of the nozzle 2 by supplying air to the second air inlet channel 13, so that atomized medium in the inner flow channel 21 is blown out, and the situations of blockage of the nozzle 2, deterioration of the atomized medium and the like caused by residues of the atomized medium in the inner flow channel 21 are avoided.

In this embodiment, the liquid inlet channel 11 may include a first liquid inlet pipe 111 and a second liquid inlet pipe 112, the first liquid inlet pipe 111 being in direct communication with the inner flow path 21; the second liquid inlet pipeline 112 is communicated with the first liquid inlet pipeline 111, and the extending direction of the second liquid inlet pipeline 112 and the extending direction of the first liquid inlet pipeline 111 are obliquely arranged at a preset angle alpha; the second intake passage 13 is in particular in communication with a second intake conduit 112. By disposing the second liquid inlet pipe 112 and the first liquid inlet pipe 111 obliquely and communicating the second air inlet channel 13 with the second liquid inlet pipe 112, the risk of the atomized medium in the liquid inlet channel 11 flowing back to the second air inlet channel 13 and blocking the second air inlet channel 13 can be reduced.

Wherein the preset angle alpha is more than 30 degrees and less than or equal to 150 degrees; such as 30 °, 60 °, 90 ° or 120 °, etc. In a specific embodiment, as shown in fig. 2, the extending direction of the first liquid inlet pipe 111 is parallel to the axial direction Y of the base 1; the extending direction of the second liquid inlet pipeline 112 is perpendicular to the axial direction Y of the base 1; i.e. the first feed line 111 and the second feed line 112 are arranged vertically. In this way, the atomized medium in the first liquid inlet pipeline 111 can be prevented from entering the second air inlet channel 13; and the atomized medium in the second liquid inlet pipeline 112 can flow towards the first liquid inlet pipeline 111 under the action of gravity, so that the risk of the second liquid inlet pipeline 112 flowing to the second air inlet channel 13 is further reduced.

In this particular embodiment, the extending direction of the first air intake passage 12 may also be parallel to the axial direction Y of the base 1.

Of course, in the embodiment shown in fig. 2, the spray head assembly 10 further includes a protective cover 4, where the protective cover 4 covers the side of the spray opening 212 of the nozzle 2 and exposes the spray opening 212. The circumferential edge of the protective cover 4 is sandwiched between the nozzle 2 and the inner wall surface of the accommodation groove 14 for sealing the gap between the nozzle 2 and the base 1.

In another embodiment, referring to fig. 4 to 6, fig. 4 is a schematic view of the overall structure of a showerhead assembly according to another embodiment of the present application; FIG. 5 is a B-B cross-sectional view of the showerhead assembly of FIG. 4 provided in an embodiment of the present application; FIG. 6 is a C-C cross-sectional view of the showerhead assembly of FIG. 4, according to one embodiment of the present application. Another showerhead assembly 10 is provided, the showerhead assembly 10 differing from the showerhead assembly 10 provided by the above-described embodiments in that: the nozzle 2 is accommodated in the accommodating groove 14 of the base 1 and forms a buffer cavity 15 with the bottom wall of the accommodating groove 14; the inner flow passage 21, the liquid inlet passage 11 and the second air inlet passage 13 are respectively communicated with the buffer chamber 15.

Specifically, referring to fig. 5 and 6, a portion of the nozzle 2 is sleeved in the second groove 142 through the first groove 141, and is disposed at a distance from the bottom wall of the second groove 142, so as to form the buffer cavity 15 in cooperation with the bottom wall and the side wall of the second groove 142. The liquid inlet 211 faces the buffer cavity 15 and is directly communicated with the buffer cavity 15.

In this embodiment, the inner flow passage 21, the liquid inlet passage 11, the first air inlet passage 12, and the second air inlet passage 13 are independent of each other. Specifically, referring to fig. 4 to 6, the extending direction of the liquid inlet passage 11 and the extending direction of the second air inlet passage 13 may be perpendicular to the axial direction Y of the base 1, respectively; the extending direction of the first air intake passage 12 may be parallel to the axial direction Y of the base 1. Specifically, the extending direction of the liquid inlet passage 11, the extending direction of the second air inlet passage 13, and the extending direction of the first air inlet passage 12 may be perpendicular to each other.

In the spray head assembly 10 provided in the above two embodiments, when the spray head assembly starts to operate, atomized medium enters the inner flow path 21 of the nozzle 2 from the liquid inlet channel 11, and the first air inlet channel 12 is filled with high-speed gas. The high velocity gas and atomizing medium atomize to form an aerosol after action at the spray orifice 212. When atomization is stopped, the liquid supply of the liquid inlet channel 11 is stopped, and residual atomized medium exists in the inner flow channel 21 of the nozzle 2; if the remaining atomized medium is not removed, the inner flow path 21 is easily blocked, and the atomized medium is easily degraded. Therefore, when the nozzle 2 stops atomizing, that is, when the liquid inlet channel 11 stops supplying liquid, the gas starts to be introduced into the second air inlet channel 13, and the gas blows off the atomized medium remained in the inner flow channel 21 when flowing through the inner flow channel 21, so that the problem of blockage and deterioration caused by the atomized medium remained is avoided. After the gas fed into the inner flow passage 21 through the second intake passage 13 runs in the inner flow passage 21 of the nozzle 2 for a certain period of time, the supply of the gas to the second intake passage 13 is stopped.

The spray head assembly 10 provided in this embodiment includes a base 1 and a nozzle 2, the base 1 having a liquid inlet channel 11, a first air inlet channel 12 and a second air inlet channel 13; the nozzle 2 is arranged on the base 1 and is provided with an inner flow channel 21 and an outer flow channel 22; the liquid inlet channel 11 is communicated with the inner flow channel 21 so as to supply liquid to the inner flow channel 21; the first intake passage 12 communicates with the outer flow passage 22 to supply air to the outer flow passage 22; the second air inlet channel 13 is communicated with the inner flow channel 21 and is positioned upstream of the inner flow channel 21 along the liquid inlet path of the inner flow channel 21; in this way, the air flow entering the second air inlet channel 13 flows through the inner flow channel 21 of the nozzle 2, so that when the atomization of the nozzle 2 assembly is stopped, the air can be supplied into the second air inlet channel 13 to blow away the residual atomized medium in the nozzle 2, thereby avoiding the problems of blockage of the nozzle 2 and deterioration of the atomized medium caused by the residual atomized medium in the nozzle 2; the scheme can solve the problem of blockage of the nozzle 2, and has the advantages of simple mode, low cost and good effect.

In one embodiment, referring to fig. 7, fig. 7 is a schematic structural diagram of an electronic atomization device according to an embodiment of the present application; an electronic atomizing device for atomizing an atomizing medium to form an aerosol is provided. The electronic atomization device can be particularly used in the technical fields of medical treatment, beauty treatment, health care, electronic atomization and the like. The electronic atomizing device includes a spray head assembly 10, a liquid storage assembly 20, and a gas supply assembly 30. The spray head assembly 10 is provided in any of the above embodiments, and the specific structure and function of the spray head assembly 10 may be found in the above description.

The liquid storage assembly 20 communicates with the liquid inlet passage 11 for storing the atomized medium and supplying the atomized medium to the head assembly 10 through the liquid inlet passage 11. Wherein, the liquid storage component 20 can be actively supplied with liquid or passively supplied with liquid. Active fluid supply means that a syringe pump or a piezoelectric pump can be adopted, and passive fluid supply means that the venturi effect of fluid (gas or liquid) can be realized. In one embodiment, as shown in FIG. 7, the reservoir assembly 20 may be actively supplied. Specifically, the reservoir assembly 20 includes a housing for forming a reservoir with a fluid outlet at one end, a pushrod axially movably disposed in the reservoir from the other end of the reservoir, and a motor. The motor is connected and matched with the push rod to drive the push rod to move in the liquid storage bin so as to convey atomized media in the liquid storage bin to the liquid inlet channel 11.

The air supply assembly 30 communicates with the first air intake passage 12 and the second air intake passage 13, respectively, for supplying air to the first air intake passage 12 and/or the second air intake passage 13. In one embodiment, the air supply assembly 30 includes an air pump 31 and an air supply line 32. The air pump 31 is used to generate high-speed gas. Among them, since too small a gas pressure may cause difficulty in breaking the liquid droplets, and too large a gas pressure may cause noise and miniaturization problems, it is necessary to determine an appropriate gas supply pressure of the gas pump 31 according to a specific use scenario.

The air supply line 32 includes a main line 321, a first branch line 322, and a second branch line 323. The main pipe 321 is directly connected to the air pump 31, and one end of the first branch pipe 322 is connected to the main pipe 321, and the other end is connected to the first air intake passage 12 for supplying air to the first air intake passage 12. One end of the second branch pipe 323 is communicated with the main pipe 321, and the other end is communicated with the second air intake passage 13 for supplying air to the second air intake passage 13.

Specifically, as shown in fig. 7, in some embodiments, the air supply assembly 30 further includes: the on-off valve 33, the on-off valve 33 is disposed in the second branch pipe 323, for controlling the communication and closing of the second branch pipe 323. The on-off valve 33 may be a solenoid valve. The air supply line 32 may be a three-way valve.

Of course, in other embodiments, the air supply assembly 30 may also include a first air pump, a second air pump, a first air path, and a second air path. Wherein the first air passage is respectively communicated with a first air pump and a first air inlet passage 12, and the first air pump is used for generating high-speed air. The first air pump is similar to the air pump described above. The second air path is respectively communicated with the second air pump and the second air inlet channel 13. The pressure of the gas supplied from the second air pump is not limited as long as the gas flow is formed to blow out the atomized medium in the inner flow passage 21.

The specific working principle of the electronic atomization device corresponding to the embodiment is as follows: in normal operation, the high-speed gas of the air pump 31 passes through the main pipe 321, reaches the first air intake passage 12 through the first branch pipe 322, and then flows through the spray opening 212 through the outer flow passage 22 of the nozzle 2; at this time, the on-off valve 33 is closed, and no gas passes through the second branch pipe 323. Atomized medium in the liquid storage assembly 20 enters the inner flow passage 21 of the nozzle 2 through the liquid inlet channel 11. The high velocity gas reacts with the atomizing medium at the spray orifice 212 to achieve atomization. When atomization is required to be stopped, the switch valve 33 is opened in response to a signal for stopping atomization, and the liquid supply of the liquid storage assembly 20 is stopped; at this time, the gas in the air pump 31 sequentially enters the second air inlet channel 13 and the inner flow channel 21 of the nozzle 2 through the second branch pipeline 323, and blows the atomized medium remained in the inner flow channel 21 to the outside of the nozzle 2, so that the atomized medium is not in the inner flow channel 21 of the nozzle 2, and various problems of blockage, atomized medium deterioration and the like caused by the atomized medium remained in the nozzle 2 are solved. After the air supply time of the air supply module 30 for supplying air through the second air inlet passage 13 reaches a preset time, the air pump 31 is turned off, and the switch valve 33 is turned off. It will be appreciated that after the air supply time has reached the preset time, the atomized medium remaining in the inner flow path 21 of the nozzle 2 has been entirely blown out of the nozzle 2. The preset time may be specifically determined according to the time required for the air flow supplied from the second air intake passage 13 to blow out all of the remaining atomized medium.

When the switch valve 33 is opened and the second branch pipe 323 is connected, the first branch pipe 322 may not be closed, i.e. the first air inlet channel 12 is always supplied with air; in this way, the high-speed gas provided by the first air inlet channel 12 can further perform high-speed shearing on the atomized medium blown out of the spray outlet 212 by the air flow in the second air inlet channel 13, so as to atomize the part of the atomized medium to form aerosol; therefore, the utilization rate of the atomized medium can be improved, leakage or the condition that a user directly contacts with the liquid atomized medium which is not atomized can be prevented, and the user experience can be improved.

It will be appreciated that the first branch pipe 322 and the second branch pipe 323 are provided with the on-off valve 33 only in the second branch pipe 323; the second branch pipeline 323 can be controlled to be communicated and closed by regulating the switch valve 33, so that the second branch pipeline 323 is closed during normal atomization operation, and the influence of air flow in the second branch pipeline 323 on the liquid inlet process of the liquid inlet channel 11 is avoided; at the same time, after the atomization is finished, the switch valve 33 is opened to communicate with the second branch pipe 323, so as to supply air to the second air inlet channel 13, and blow out the atomized medium remained in the inner flow channel 21 of the nozzle 2. However, the switch valve 33 is not arranged in the first branch pipeline 322, so that the first branch pipeline 322 can be used for continuously supplying air to the first air inlet channel 12 after atomization is stopped, the blown residual atomized medium is atomized, and after all the residual atomized medium is blown, the continuous air supply of the first branch pipeline 322 can be stopped by closing the air pump 31, so that the number of the switch valves 33 is reduced, and the cost is reduced.

The electronic atomization device provided by the embodiment comprises a spray head assembly 10, a liquid storage assembly 20 and a gas supply assembly 30; the liquid storage assembly 20 is communicated with the liquid inlet channel 11 and is used for storing the atomized medium and providing the atomized medium for the spray head assembly 10 through the liquid inlet channel 11; the air supply assembly 30 communicates with the first air intake passage 12 and the second air intake passage 13, respectively, for supplying air to the first air intake passage 12 and/or the second air intake passage 13. The head assembly 10 includes a base 1 and a nozzle 2, the base 1 having a liquid inlet passage 11, a first air inlet passage 12, and a second air inlet passage 13; the nozzle 2 is arranged on the base 1 and is provided with an inner flow channel 21 and an outer flow channel 22; the liquid inlet channel 11 is communicated with the inner flow channel 21 so as to supply liquid to the inner flow channel 21; the first intake passage 12 communicates with the outer flow passage 22 to supply air to the outer flow passage 22; the second air inlet channel 13 is communicated with the inner flow channel 21 and is positioned upstream of the inner flow channel 21 along the liquid inlet path of the inner flow channel 21; in this way, the air flow entering the second air inlet channel 13 will flow through the inner flow channel 21 of the nozzle 2, so that when the nozzle 2 assembly stops atomizing, the air can be supplied into the second air inlet channel 13 to blow away the residual atomized medium in the nozzle 2, so as to avoid the problem that the nozzle 2 is blocked due to the residual atomized medium in the nozzle 2.

Referring to fig. 8, fig. 8 is a flowchart of a control method of an electronic atomizing device according to an embodiment of the present application. In one embodiment, a control method of an electronic atomization device is provided, and the electronic atomization device is the electronic atomization device according to the above embodiment, and specific structure and function of the electronic atomization device may be described in the above related description. The method comprises the following steps:

step S1: the liquid storage component and the air supply component are started, the liquid storage component supplies liquid to the inner flow passage of the nozzle through the liquid inlet passage, and the air supply component supplies air to the outer flow passage of the nozzle through the first air inlet passage so as to atomize atomized media in the nozzle.

Specifically, the liquid storage assembly 20 adopts an active liquid supply mode, and the specific reference can be seen above. When the atomization work is carried out, the motor is started to drive the atomized medium in the liquid storage bin to flow into the liquid inlet channel 11 of the spray head assembly 10 and supply liquid to the inner flow channel 21 of the spray nozzle 2. The air pump 31 of the air supply assembly 30 is turned on, and the first branch pipeline 322 is in a normally-on state, and the switch valve 33 on the second branch pipeline 323 is in a closed state at the moment, so that after the air pump 31 is turned on, the air pump 31 supplies air to the first air inlet channel 12 through the first branch pipeline 322, and high-speed air generated by the air pump 31 sequentially passes through the first branch pipeline 322, the first air inlet channel 12 and the outer runner 22 to reach the spraying opening 212, so that atomized medium sprayed out from the spraying opening 212 is sheared at a high speed, and aerosol is formed.

Step S2: in response to the liquid storage component stopping supplying liquid, the air supply component supplies air to the inner flow passage of the nozzle through the second air inlet passage so as to blow out atomized medium in the nozzle.

Wherein, when atomization is stopped, the liquid storage component 20 stops supplying liquid; a part of the atomized medium remains in the inner flow path 21 of the nozzle 2. At this time, the on-off valve 33 is opened to communicate with the second branch pipe 323, and the high-speed gas generated by the air pump 31 flows out through the first branch pipe 322 and the second branch pipe 323; the gas in the second branch pipeline 323 sequentially passes through the second air inlet channel 13 and enters the inner flow channel 21 of the nozzle 2, so that atomized medium remained in the inner flow channel 21 is blown out, and the problems of blockage of the inner flow channel 21 of the nozzle 2, deterioration of the atomized medium and the like caused by the residual atomized medium are avoided. Meanwhile, the gas in the first branch pipeline 322 can flow out through the first air inlet channel 12 and the outer flow channel 22 so as to atomize the blown residual atomized medium, thereby improving the utilization rate of the atomized medium, preventing leakage or the situation that a user directly contacts the liquid non-atomized medium, and improving the user experience.

In a specific implementation process, after step S2, the method further includes:

step S3: in response to the air supply time of the air supply assembly 30 through the second air intake passage 13 reaching the preset time, the air supply assembly 30 and the on-off valve 33 are closed.

When the air supply time of the air supply assembly 30 through the second air inlet channel 13 reaches the preset time, the atomized medium remained in the nozzle 2 is blown out of the nozzle 2 completely or more than 95% of the atomized medium is blown out of the nozzle 2. The preset time may be specifically determined according to the time required for the air flow supplied from the second air intake passage 13 to blow out all of the remaining atomized medium.

Specifically, in response to the air supply time of the air supply assembly 30 through the second air intake passage 13 reaching the preset time, the air pump 31 and the on-off valve 33 are closed, so that the second branch pipe 323 is closed. It will be appreciated that after the residual atomized medium is blown out, since the air pump 31 is already turned off, no high-speed air flow flows out even though the first branch pipe 322 is still in a connected state; therefore, an on-off valve is not required to be arranged on the first branch pipeline 322 to control the communication or the closing of the first branch pipeline 322, so that the cost is saved.

In the control method of the electronic atomization device provided in this embodiment, during normal atomization, the liquid storage component 20 and the air supply component 30 are opened, and the liquid storage component 20 supplies liquid to the inner flow channel 21 of the nozzle 2 through the liquid inlet channel 11, and the air supply component 30 supplies air to the outer flow channel 22 of the nozzle 2 through the first air inlet channel 12, so as to atomize the atomized medium in the nozzle assembly 10; and in response to the liquid supply stopping of the liquid storage assembly 20, that is, when atomization is stopped, the air supply assembly 30 is caused to supply air through the second air inlet channel 13 so as to blow out the atomized medium in the nozzle assembly 10; effectively avoid the problems of nozzle 2 blockage, atomized medium deterioration and the like caused by atomized medium residues in the nozzle 2.

The foregoing is only the embodiments of the present application, and not the patent scope of the present application is limited by the foregoing description, but all equivalent structures or equivalent processes using the contents of the present application and the accompanying drawings, or directly or indirectly applied to other related technical fields, which are included in the patent protection scope of the present application.

Claims

1. A showerhead assembly, comprising:

the base is provided with a liquid inlet channel, a first air inlet channel and a second air inlet channel;

the nozzle is arranged on the base and is provided with an inner flow channel and an outer flow channel; the liquid inlet channel is communicated with the inner flow channel so as to supply liquid to the inner flow channel; the first air intake passage communicates with the outer flow passage to supply air thereto; the second air inlet channel is communicated with the inner flow channel and is positioned at the upstream of the inner flow channel along the liquid inlet path of the inner flow channel.

2. The showerhead assembly of claim 1,

3. The showerhead assembly of claim 2,

4. The showerhead assembly of claim 3,

5. The showerhead assembly of claim 1,

the base is also provided with a containing groove; the nozzle is arranged in the accommodating groove and is defined with the accommodating groove to form a buffer cavity, and the inner flow passage, the liquid inlet passage and the second air inlet passage are respectively communicated with the buffer cavity.

6. The showerhead assembly of claim 5,

7. The showerhead assembly of claim 5 or 6,

the extending direction of the liquid inlet channel and the extending direction of the second air inlet channel are respectively perpendicular to the axial direction of the base; the extending direction of the first air inlet passage is parallel to the axial direction of the base.

8. An electronic atomizing device, comprising:

a showerhead assembly according to any one of claims 1 to 7;

the liquid storage component is communicated with the liquid inlet channel and used for storing an atomization medium and providing the atomization medium for the spray head component through the liquid inlet channel;

and the air supply assembly is respectively communicated with the first air inlet channel and the second air inlet channel and is used for supplying air to the first air inlet channel and/or the second air inlet channel.

9. The electronic atomizing device of claim 8, wherein,

the air supply assembly includes:

an air pump;

10. The electronic atomizing device of claim 9, wherein,

the air supply assembly further includes:

11. A control method of an electronic atomizing device, characterized in that the electronic atomizing device is an electronic atomizing device according to any one of claims 8 to 10, the control method comprising:

opening a liquid storage component and a gas supply component, and enabling the liquid storage component to supply liquid to an inner flow channel of a nozzle through a liquid inlet channel, and enabling the gas supply component to supply gas to an outer flow channel of the nozzle through a first gas inlet channel so as to atomize an atomized medium in the nozzle;

and responding to the liquid storage component to stop liquid supply, and enabling the air supply component to supply air to the inner flow passage of the nozzle through the second air inlet channel so as to blow out the atomized medium in the nozzle.

12. The method of controlling an electronic atomizing device according to claim 11, characterized by further comprising:

and closing the air supply assembly and the switch valve in response to the air supply time of the air supply assembly through the second air inlet channel reaching a preset time.