CN220967828U

CN220967828U - Electrostatic atomizing device

Info

Publication number: CN220967828U
Application number: CN202321771494.4U
Authority: CN
Inventors: 杨俊�; 李卫华; 万文龙; 杨嘎玛
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-05-17
Anticipated expiration: 2033-07-06

Abstract

The present application relates to an electrostatic atomizing device, comprising: a reservoir assembly having a reservoir; the spray head assembly is connected with the liquid storage assembly and communicated with the liquid storage cavity; the positive ion generator is coaxially arranged with the spray head assembly and is connected with positive high-voltage electricity to generate ion wind with positive charges; the sensing piece is arranged in the spraying direction of the spray head assembly; the sensing piece generates positive high-voltage electricity through the sensing positive ion generator, and the spray head component senses the positive high-voltage electricity carried by the sensing piece and generates aerosol particles with negative charges. According to the electrostatic atomization device, the negatively charged aerosol particles output by the spray head assembly and the positively charged ion wind are subjected to neutralization reaction to generate the uncharged aerosol particles, so that the targeting position of the lung of a user can be successfully achieved. In addition, the negative high-voltage electrostatic module is not required to be additionally arranged, so that the discharge probability is obviously reduced, and harmful gases such as ozone and the like are prevented from being generated due to the existence of the negative high-voltage electrostatic module.

Description

Electrostatic atomizing device

Technical Field

The application relates to the technical field of atomization, in particular to an electrostatic atomization device.

Background

The existing electronic atomization device generally adopts a heating component to heat and atomize a liquid matrix at a high temperature of about 300 ℃, a series of chemical reactions are carried out on the liquid matrix at the high temperature, so that harmful substances such as aldehyde ketone and the like are generated, and the particle size of aerosol particles generated by atomization of the electronic atomization device is usually about 1 mu m, so that the particle size cannot be controlled in a large range.

Based on the defects, the electrostatic atomization technology atomizes at normal temperature, so that the generation of harmful substances is obviously reduced, and the particle size of aerosol particles generated by atomization can be regulated by regulating the flow, voltage, polar distance, the number of spray heads, aperture and the like. However, when the electrostatic atomization technique is applied to an electronic atomization device in the medical field, discharge phenomenon is easily generated and harmful gas such as ozone is generated, which affects the safety of the electronic atomization device.

Disclosure of Invention

Accordingly, it is necessary to provide an electrostatic atomizer for solving the problems of the electric discharge phenomenon and ozone easily generated in the electronic atomizer using the electrostatic atomization technique.

An electrostatically atomizing device comprising:

A reservoir assembly having a reservoir;

the spray head assembly is connected with the liquid storage assembly and communicated with the liquid storage cavity;

the positive ion generator is coaxially arranged with the spray head assembly and is connected with positive high-voltage electricity to generate ion wind with positive charges; and

The sensing piece is arranged in the spraying direction of the spray head assembly;

The sensing piece generates positive high-voltage electricity through sensing the positive ion generator, and the spray head component senses the positive high-voltage electricity carried by the sensing piece and generates aerosol particles with negative charges.

In one embodiment, the positive ion generator comprises an annular body and a plurality of ion generating parts, wherein all the ion generating parts are arranged at one end of the annular body and are arranged at intervals along the circumferential direction of the annular body, and each ion generating part extends along the axial direction of the annular body;

The extending direction of each ion generating part is the same as the ejecting direction of the nozzle assembly.

In one embodiment, each of the ion generating portions includes a tip extending toward the ejection direction of the showerhead assembly.

In one embodiment, the electrostatic atomization device comprises a cavity, wherein the spray head assembly and the positive ion generator are at least partially arranged in the cavity, and the cavity is used for neutralizing the positively charged ion wind and the negatively charged aerosol particles;

The cavity is provided with an air vent communicated with the external atmosphere, so that external air enters the cavity and forms the ion wind with positive charges through the positive ion generator.

In one embodiment, the electrostatically atomizing device further comprises an insulator which is positioned between the positive ion generator and the showerhead assembly.

In one embodiment, the nozzle assembly includes at least one nozzle, and the sensing member includes at least one recess recessed toward a central axis of the nozzle assembly, the recess being disposed corresponding to the nozzle in a direction of ejection of the nozzle assembly.

In one embodiment, the spray head assembly comprises a plurality of spray holes, and all the spray holes are arranged at intervals along the circumferential direction;

the sensing piece comprises a plurality of concave parts, and all the concave parts are sequentially distributed along the circumferential direction and are in one-to-one correspondence with the spray holes.

In one embodiment, the middle part of the sensing piece is provided with a hollowed-out part.

In one embodiment, the spray head assembly includes a spray head body and at least one nozzle, the spray head body is communicated with the liquid storage assembly, the nozzle is disposed on the spray head body and extends towards the recess, and the spray hole is formed on the nozzle.

In one embodiment, the electrostatic atomization device further comprises a pressurizing module and a voltage control unit, wherein the pressurizing module is communicated with one end, far away from the spray head assembly, of the liquid storage cavity, and the voltage control unit is electrically connected with the pressurizing module.

According to the electrostatic atomization device, the negatively charged aerosol particles output by the spray head assembly and the positively charged ion wind are subjected to neutralization reaction to generate the uncharged aerosol particles, so that the targeting position of the lung of a user can be smoothly reached, the requirement of the medical field on the aerosol entering the lung is met, and a large amount of aerosol particles cannot be deposited on the parts such as the oral cavity, the throat and the like. Moreover, because the aerosol with negative charges is sprayed out of the spray head assembly based on the induction charge principle, a negative high-voltage electrostatic module is not required to be additionally arranged, the discharge probability is remarkably reduced, harmful gases such as ozone and the like are prevented from being generated due to the existence of the negative high-voltage electrostatic module, and the safety of the electrostatic atomization device is improved.

Drawings

Fig. 1 is a schematic structural diagram of an electrostatic atomizer according to an embodiment of the present application.

Fig. 2 is a schematic view of a part of the structure of the electrostatic atomizing apparatus shown in fig. 1.

Fig. 3 is a schematic view showing an internal structure of a part of the structure of the electrostatic atomizing apparatus shown in fig. 2.

Fig. 4 is a bottom view of a part of the structure of the electrostatic atomizing apparatus shown in fig. 2.

Fig. 5 is an exploded schematic view of a part of the structure of the electrostatic atomizing apparatus shown in fig. 2.

Fig. 6 is a schematic structural diagram of an induction member of an electrostatic atomizer according to an embodiment of the present application.

Reference numerals illustrate:

100. An electrostatic atomizing device; 10. a base; 12. a receiving chamber; 14. an air vent; 20. a housing; 21. a cavity; 30. a liquid storage component; 32. a liquid storage cavity; 40. a spray head assembly; 41. a spray head body; 412. a temporary reservoir; 43. a nozzle; 52. a positive ion generator; 521. an annular body; 523. an ion generating section; 54. an induction member; 541. a recessed portion; 543. a hollowed-out part; 60. a positive high voltage electrostatic generation module; 70. an insulating member; 80. a pressurizing module; 90. and a voltage control unit.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if any, these terms "center," "upper," "top," "bottom," "inner," "outer," "axial," "circumferential," and the like are used in the direction or location based on the orientation or location shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" a second feature, etc., is that the first and second features are either in direct contact or in indirect contact through an intervening medium.

It will be understood that if an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The term "upper" and similar expressions, if any, used herein are for illustrative purposes only and are not meant to be the only embodiments.

Referring to fig. 1, an electrostatic atomization device 100 according to an embodiment of the present application may be applied to the fields of medical treatment, beauty treatment, electronic atomization, etc., and uses an electrostatic atomization technology to atomize a liquid matrix with a relatively high viscosity to form aerosol particles at normal temperature and high flow rate, so as to significantly reduce the generation of harmful substances, and effectively regulate and control the particle size of the aerosol particles, thereby meeting the requirements on the particle size of the aerosol particles. The electrostatic atomization technology refers to a process that liquid overcomes self surface tension under the action of an electric field force to break into liquid drops.

As shown in fig. 1 to 3, the electrostatically atomizing device 100 comprises a base 10, a housing 20, a liquid reservoir assembly 30, a head assembly 40, and an electrostatically atomizing assembly. The liquid storage assembly 30 is mounted to the base 10, and the spray head assembly 40 is connected to the liquid storage assembly 30, and the liquid storage assembly 30 is used for storing the liquid substrate and supplying the liquid substrate to the spray head assembly 40. The housing 20 is coupled to the base 10 for housing the showerhead assembly 40 and the electrostatically atomizing assembly. The electrostatic atomizing assembly is used to atomize the liquid substrate ejected through the spray head assembly 40 to form aerosol particles.

Specifically, the base 10 has a hollow cylindrical structure, including a base top wall and a base side wall extending from an edge of the base top wall in a first direction (i.e., a Z direction in fig. 1), and the base side wall circumferentially surrounds the base top wall to define with the base top wall a receiving chamber 12 having an opening at one end.

Further, the base 10 is provided with at least one ventilation hole 14, the ventilation hole 14 communicates with the accommodating cavity 12 and the external atmosphere, and external air can enter the accommodating cavity 12 through the ventilation hole 14. In an embodiment, the ventilation holes 14 are formed in the top wall of the base, and the ventilation holes 14 are arranged at intervals along the circumferential direction of the top wall of the housing 20 at the edge of the top wall of the base. It is understood that the number and arrangement of the ventilation holes 14 are not limited, and in other embodiments, the ventilation holes 14 may be formed in the side wall of the housing 20, and the number of ventilation holes 14 may be one.

The casing 20 is a hollow columnar structure with two open ends, the casing 20 and the base 10 are coaxially arranged, one axial end of the casing 20 is connected to the open end of the base 10, and a cavity 21 communicated with the accommodating cavity 12 is formed in the casing 20. In some embodiments, the housing 20 is integrally formed with the base 10, in some embodiments, the housing 20 is detachably connected to the base 10, in other embodiments, the housing 20 may be omitted, and the cavity 21 may be formed in the base 10.

The liquid storage component 30 is of a hollow columnar structure, the liquid storage component 30 is coaxially arranged with the base 10 and the shell 20, one end of the liquid storage component 30 extends into the cavity 21 of the shell 20, the other end of the liquid storage component 30 penetrates through the accommodating cavity 12 of the base 10 along the first direction and extends out of the top wall of the base, and a liquid storage cavity 32 is formed in the liquid storage component 30 to store liquid matrix.

The spray head assembly 40 is received in the cavity 21 of the housing 20 and grounded, and the spray head assembly 40 includes a spray head body 41 and at least one nozzle 43. The nozzle body 41 is substantially in a solid structure, the nozzle body 41 is coaxially arranged with the housing 20 and the liquid storage assembly 30, and a temporary liquid storage chamber 412 in the shape of a circular ring is formed in the nozzle body 41. The plurality of nozzles 43 are circumferentially spaced apart from one end of the liquid storage assembly 30 away from the base 10, one end of each nozzle 43 is communicated with the temporary liquid storage cavity 412, the other end of each nozzle 43 extends in the first direction towards the direction opposite to the liquid storage assembly 30, and a nozzle for spraying the liquid matrix is formed at the end of one end of each nozzle 43 away from the temporary liquid storage cavity 412, so that the liquid matrix in the temporary liquid storage cavity 412 can be sprayed through the plurality of nozzles 43 simultaneously. In particular, in some embodiments, the nozzle 43 is a capillary metal tube, and the nozzle 43 is completely received within the cavity 21 of the housing 20 at a distance from the open end of the cavity 21 away from the housing 20.

It will be appreciated that the number and arrangement of the nozzles 43 is not limited, and in some embodiments, all the nozzles 43 are circumferentially arranged to form a virtual circle, and in other embodiments, all the nozzles 43 are arranged in a plurality of circles, so that the number of nozzles is the largest and independent. It is understood that the number and arrangement of the nozzles 43 are not limited, and in other embodiments, the nozzles 43 may be arranged in an array.

In some embodiments, the orifice may have a pore size of 100 microns to 300 microns. If the aperture of the spray hole is smaller than 100 micrometers, the requirement on the forming process is higher, and the current process is harder to reach the requirement. If the aperture of the spray hole is larger than 300 microns, the particle size of the sprayed aerosol particles is larger, and the use standard of the related field cannot be met. In addition, the particle size of the aerosol particles ejected from the nozzle holes has a negative correlation with the number of nozzle holes, and is positively correlated with the flow rate, that is, the larger the number of nozzle holes is, the smaller the flow rate allocated to each nozzle 43 is, and the smaller the particle size of the aerosol particles ejected is, so that the purpose of adjusting the particle size of the aerosol particles can be achieved by increasing or decreasing the number of nozzle holes.

Referring to fig. 3, 4 and 5, the electrostatically atomizing device comprises a positive ion generator 52 and a sensing element 54. The positive ion generator 52 can generate the ion wind with positive charges by switching in positive high voltage, meanwhile, the sensing piece 54 senses the positive high voltage generated by the positive ion generator 52 based on the principle of sensing charge, the spray head assembly 40 senses the positive high voltage carried by the sensing piece 54 and generates aerosol particles with negative charges, and finally, the ion wind with positive charges generated by the positive ion generator 52 and the aerosol particles with negative charges generated by the spray head assembly 40 are converged to generate a neutralization reaction, so that the aerosol particles flowing out of the electrostatic atomization assembly are uncharged.

Therefore, in the electrostatic atomizer 100, the negatively charged aerosol particles and the positively charged ion wind output from the nozzle assembly 40 are neutralized to generate the uncharged aerosol particles, so that the targeting position of the user's lung can be successfully achieved, the requirement of the medical field on the aerosol entering the lung can be met, and a large amount of aerosol particles cannot be deposited on the oral cavity, the throat and other parts. Moreover, since the showerhead assembly 40 ejects the negatively charged aerosol based on the inductive charging principle, no additional negative high voltage electrostatic module is required, so that the probability of discharge is significantly reduced, generation of harmful gases such as ozone due to the existence of the negative high voltage electrostatic module is prevented, and the safety of the electrostatic atomizing device 100 is improved.

The positive ion generator 52 is housed in the cavity 21 of the housing 20, and circumferentially surrounds the showerhead assembly 40 and is disposed coaxially with the showerhead assembly 40. Specifically, the positive ion generator 52 includes an annular body 521 and a plurality of ion generating portions 523. The ring 521 has a ring-shaped structure formed by winding a metal sheet, the ring 521 surrounds the outer circumference of the head assembly 40 and is disposed coaxially with the head assembly 40, and the inner diameter of the ring 521 is larger than the outer diameter of the head assembly 40. All the ion generating portions 523 are disposed at one end of the annular body 521 away from the base 10 and are disposed at intervals along the circumferential direction of the annular body 521, each ion generating portion 523 extends along the axial direction of the annular body 521, and the extending direction of each ion generating portion 523 is the same as the ejecting direction of the head assembly 40. In this way, the flow direction of the ion wind generated by the positive ion generator 52 coincides with the flow direction of the aerosol particles ejected from the head assembly 40, and thus the aerosol particles can be better neutralized.

As a preferred embodiment, each of the ion generating portions 523 includes a tip extending toward the ejection direction of the head assembly 40 for generating positively charged ions. Specifically, in one embodiment, the ion generating portion 523 is saw-toothed, and may be formed by laser cutting a metal sheet forming the annular body 521. It is to be understood that the shape and the number of the ion generating portions 523 are not limited, and may be set as needed.

The ion wind is ions that flow in the space and are ionized to form a set charge instead of gas molecules.

Referring to fig. 6, the sensing member 54 is spaced apart from an end portion of the nozzle assembly 40 away from the liquid storage chamber 32, and is located inside all of the nozzles 43 in the ejection direction of the nozzle assembly 40. Specifically, the sensing member 54 has a sheet structure and includes a plurality of concave portions 541, all the concave portions 541 are sequentially disposed along a circumferential direction of the nozzle assembly 40, each concave portion 541 is concave toward a central axis of the nozzle assembly 40, and each concave portion 541 is disposed corresponding to one nozzle assembly 40 in a spraying direction of the nozzle assembly 40. In a preferred embodiment, each depression 541 is curved in a semi-circular arc toward the central axis of the showerhead assembly 40 so that the entire sensing element 54 forms a "petal-like" structure.

The sensing element 54 itself is not connected to an external power source, but generates positive high voltage by sensing the positive ion generator 52 connected to the positive high voltage, so that the liquid substrate ejected from each nozzle 43 senses the positive high voltage of the sensing element 54 to form negatively charged aerosol particles. Further, since the concave portion 541 recessed inward is located in the discharge direction of the nozzle 43 and circumferentially surrounds the nozzle 43, the flow of aerosol particles discharged from the nozzle 43 can be collected and guided.

As a preferred embodiment, the middle part of the sensing element 54 is provided with a hollow portion 543, and the hollow portion 543 may be a circular hole or a through hole with other shapes, so as to reduce the adsorption of the sensing element 54 to aerosol particles.

Referring to fig. 1 again, in some embodiments, the electrostatic atomization device 100 further includes a positive high voltage electrostatic generating module 60, the positive high voltage electrostatic generating module 60 is located outside the accommodating cavity 12 of the housing 20 and on one side of the sidewall of the housing 20, and the positive high voltage electrostatic generating module 60 is electrically connected to the positive ion generator 52 through a wire for providing a positive high voltage to the positive ion generator 52. Specifically, in some embodiments, the positive high voltage output by the positive high voltage electrostatic generator module 60 is typically 4lv-7kv, and the positive high voltage induced by the induction member 54 is typically 1kv-3kv.

As shown in fig. 1 and 2, in some embodiments, the electrostatically atomizing device 100 further comprises an insulator 70, the insulator 70 being positioned between the positive ion generator 52 and the showerhead assembly 40. Specifically, in one embodiment, the insulating member 70 has a ring-shaped structure and circumferentially surrounds the outside of the liquid storage assembly 30, and the inner diameter of the insulating member 70 is larger than the outer diameter of the liquid storage assembly 30, and the outer diameter of the insulating member 70 is smaller than the inner diameter of the positive ion generator 52. In this way, the voltage across the positive ion generator 52 is effectively prevented from being too high to break down the air between the positive ion generator 52 and the showerhead assembly 40, thereby creating a safety hazard in communicating the showerhead assembly 40 with the positive ion generator 52.

In some embodiments, the electrostatic atomization device 100 further includes a pressurizing module 80 and a voltage control unit 90, where the pressurizing module 80 is connected to one end of the liquid storage cavity 32 extending out of the accommodating cavity 12, and the voltage control unit 90 is connected to the pressurizing module 80 to control an operation state of the pressurizing module 80, and the pressurizing module 80 is used to apply pressure to the liquid storage cavity 32 to press the liquid substrate in the liquid storage cavity 32 to be ejected through the spray head assembly 40. The voltage control unit 90 controls the compression volume of the liquid storage cavity 32 through controlling the pressurizing module 80, so as to control the pushed-out quality of the liquid matrix, thereby realizing quantitative atomization. In particular, in some embodiments, the pressurizing module 80 is a micro pressurizing module 80, so as to facilitate the miniaturization requirement of the electrostatic atomization device 100.

The electrostatic atomizer 100 is arranged by using the induction charging principle, and the positive high voltage is connected to the positive ion generator 52 to enable the induction piece 54 which is not connected with any electrode to generate the positive high voltage, so that aerosol particles sprayed out of the spray head assembly 40 have negative charges, a negative high voltage module is not required to be arranged, the structure of the electrostatic atomizer 100 is simplified, the volume of the electrostatic atomizer 100 is reduced, harmful gases such as ozone and the like are not generated, the discharge probability is remarkably reduced, and the safety of the electrostatic atomizer 100 is improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. An electrostatic atomizing device, comprising:

A reservoir assembly having a reservoir;

2. An electrostatic atomizing device according to claim 1, wherein the positive ion generator includes an annular body and a plurality of ion generating portions, all of the ion generating portions being provided at one end of the annular body and being provided at intervals along a circumferential direction of the annular body, and each of the ion generating portions extending in an axial direction of the annular body;

3. An electrostatic atomizing device according to claim 2, wherein each of the ion generating portions includes a tip extending toward an ejection direction of the head assembly.

4. An electrostatic atomizing device according to claim 1, comprising a cavity within which the showerhead assembly and the positive ion generator are at least partially disposed, the cavity for neutralizing the negatively charged aerosol particles with the positively charged ion wind;

5. An electrostatic atomizing device according to claim 1, further comprising an insulator positioned between the positive ion generator and the showerhead assembly.

6. An electrostatic atomizing device according to claim 1, wherein the head assembly includes at least one nozzle hole, and the sensing member includes at least one recess recessed toward a central axis of the head assembly, the recess being disposed in correspondence with the head in a discharge direction of the head assembly.

7. An electrostatic atomizing device according to claim 6, wherein the spray head assembly includes a plurality of spray holes, all of the spray holes being circumferentially spaced apart;

8. An electrostatic atomizing apparatus according to claim 6, wherein a hollowed-out portion is provided in a middle portion of the sensing member.

9. An electrostatic atomizing apparatus according to claim 6, wherein the nozzle head assembly includes a nozzle head body in communication with the liquid storage assembly, and at least one nozzle disposed on the nozzle head body and extending toward the recess, the nozzle orifice being formed on the nozzle head.

10. An electrostatic atomizing apparatus according to claim 1, further comprising a pressurizing module and a voltage control unit, wherein the pressurizing module is communicated with one end of the liquid storage chamber away from the nozzle assembly, and the voltage control unit is electrically connected with the pressurizing module.