WO2023103981A1

WO2023103981A1 - Ultrasonic atomization assembly, ultrasonic atomizer and ultrasonic atomization device

Info

Publication number: WO2023103981A1
Application number: PCT/CN2022/136644
Authority: WO
Inventors: 刘永强; 徐中立; 李永海
Original assignee: 深圳市合元科技有限公司
Priority date: 2021-12-07
Filing date: 2022-12-05
Publication date: 2023-06-15
Also published as: CN116235994A

Abstract

An ultrasonic atomization assembly (105), an ultrasonic atomizer (10) and an ultrasonic atomization device (100). The ultrasonic atomization assembly (105) comprises: an ultrasonic atomization piece (1051), which is provided with a first electrode and a second electrode; a first liquid guide element (1057), which maintains contact with the ultrasonic atomization piece (1051), wherein the first liquid guide element (1057) is used for transferring a liquid matrix to the ultrasonic atomization piece (1051); and an atomization sleeve (1052), which comprises a limiting portion (1052c) and has an opening at one end, wherein part of the first liquid guide element (1057) is exposed to the opening, and another part of the first liquid guide element (1057) is maintained between the limiting portion (1052c) and the ultrasonic atomization piece (1051). By means of the ultrasonic atomization piece (1051) and the liquid guide element (1057) being accommodated inside the atomization sleeve (1052), and part of the liquid guide element (1057) being exposed to the opening at one end of the atomization sleeve (1052), an exposed portion of the liquid guide element (1057) facilitates absorption of a liquid matrix from external liquid guide elements (102, 103), and the liquid guide element (1057) is fixed inside the atomization sleeve (1052), such that the problem of the ultrasonic atomization piece (1051) being damaged due to hard contact, which is caused by the liquid guide element (1057) not being easy to assemble and being prone to offsetting, between the ultrasonic atomization piece (1051) and an e-liquid guide ceramic can be avoided.

Description

Ultrasonic atomization component, ultrasonic atomizer and ultrasonic atomization device

CROSS-REFERENCE REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application with the application number 202111485002.0 and the title "ultrasonic atomization assembly, ultrasonic atomizer and ultrasonic atomization device" submitted to the China Patent Office on December 07, 2021, the entire content of which is passed References are incorporated in this application.

technical field

The present application relates to the technical field of atomization, and in particular to an ultrasonic atomization assembly, an ultrasonic atomizer and an ultrasonic atomization device.

Background technique

The ultrasonic atomizer includes an ultrasonic atomizing sheet. When the ultrasonic atomizing sheet generates high-frequency vibrations, it can atomize the liquid matrix to form a liquid mist for inhalation by the user.

Existing ultrasonic nebulizers usually add a sheet-like oil storage cotton between the ultrasonic atomizing sheet and the oil-conducting ceramics to avoid damage to the ultrasonic atomizing sheet during the process of guiding the ultrasonic atomizing sheet; but the oil storage Cotton is usually fixed by downward abutment of an abutment support and upward abutment of an ultrasonic atomizing sheet, and the assembly and fixing are cumbersome, resulting in low manufacturing efficiency.

Contents of the invention

The present application provides an ultrasonic atomization assembly, an ultrasonic atomizer and an ultrasonic atomization device, so as to improve the installation and fixation effect between the oil storage cotton and the ultrasonic atomization sheet in the ultrasonic atomizer.

The present application provides an ultrasonic atomization assembly on the one hand, comprising:

Ultrasonic atomizing sheet, used for ultrasonically atomizing liquid substrates to form liquid mist;

The first liquid guide element is kept in contact with the ultrasonic atomization sheet; the first liquid guide element is used to transfer the liquid matrix to the ultrasonic atomization sheet;

The atomization sleeve includes a limiting part and has an opening at one end;

Wherein, part of the first liquid guiding element is exposed in the opening, and another part of the first liquid guiding element is kept between the limiting portion and the ultrasonic atomizing sheet.

In an example, the cross-sectional area of the first liquid guiding element is larger than the area of the opening.

In an example, the first liquid guiding element includes a first surface and a second surface opposite to the first surface;

Part of the first surface is exposed in the opening, and the second surface is kept in contact with the ultrasonic atomizing sheet.

In an example, the ultrasonic atomizing sheet includes a first surface in contact with the first liquid guiding element, and a second surface opposite to the first surface;

The first electrode is disposed on the first face, and the second electrode is disposed on the second face; or,

The first electrode is arranged on the first surface and extends along the side wall of the ultrasonic atomizing sheet to the second surface, and the second electrode is arranged on the second surface.

In one example, the atomizing sleeve is made of conductive material;

The atomization sleeve further includes an abutment portion, and the abutment portion is kept in contact with the first electrode to form an electrical connection.

In an example, both the limiting portion and the abutting portion radially extend toward the inside of the atomizing sleeve.

In an example, the distance between the limiting portion and the abutting portion is smaller than the thickness of the first liquid guiding element.

In an example, the limiting portion and the abutting portion are arranged in a step shape along the extending direction from one end of the atomizing sleeve to the other end of the atomizing sleeve.

In an example, the ultrasonic atomization assembly further includes an electrical connector accommodated in the atomization sleeve;

One end of the electrical connector keeps in contact with the second electrode to form an electrical connection, and the other end extends toward the other end of the atomizing sleeve.

In one example, the ultrasonic atomization assembly further includes a resistance plate accommodated in the atomization sleeve, and the resistance plate has a first electrical connection end that is directly or indirectly electrically connected to the atomization sleeve , and a second electrical connection end that is directly or indirectly electrically connected to the electrical connector.

In one example, the ultrasonic atomization assembly further includes an elastic element accommodated in the atomization sleeve, the elastic element is arranged at intervals between the electrical connector and the atomization sleeve, and is in contact with the atomization sleeve. The elastic contact of the ultrasonic atomizing sheet.

In one example, the ultrasonic atomization assembly further includes an elastic conductive element accommodated in the atomization sleeve; the elastic conductive element is directly or indirectly electrically connected to the atomization sleeve, and the elastic conductive element It is directly or indirectly electrically connected with the electrical connector; and the elastic conductive element is in elastic contact with the ultrasonic atomizing sheet.

In an example, the other end of the atomization sleeve is bent inward to form a coupling portion; or,

The ultrasonic atomization assembly further includes a coupling portion accommodated in the atomization sleeve, and the coupling portion is kept in contact with the inner wall of the atomization sleeve to form an electrical connection.

In one example, the atomizing sleeve is made of non-conductive material.

In an example, the atomization sleeve is in the shape of a cylinder, and both the first liquid guiding element and the ultrasonic atomization sheet are in the shape of a disc.

Another aspect of the present application provides an ultrasonic nebulizer, including a liquid storage chamber storing a liquid matrix, and the ultrasonic atomization assembly; wherein, the liquid storage chamber is directly or indirectly connected to the first liquid guiding element Fluid conduction.

In one example, it also includes a second liquid guide element and a third liquid guide element; the third liquid guide element is in fluid communication with the liquid storage cavity to absorb the liquid matrix stored in the liquid storage cavity, and the second liquid guide element one end of the liquid-conducting element is in contact with the third liquid-conducting element, and the other end is in contact with the first liquid-conducting element, so that the liquid matrix is transferred from the liquid storage chamber to the first liquid-conducting element Middle; wherein the first liquid-guiding element and the third liquid-guiding element are made of flexible porous material, and the second liquid-guiding element is made of solid porous material.

In one example, it further includes a second liquid guiding element, a third liquid guiding element, and a liquid buffer space; one end of the third liquid guiding element is in fluid communication with the liquid storage cavity, so as to absorb the fluid stored in the liquid storage cavity. The other end of the liquid matrix communicates with the liquid buffer space; one end of the second liquid guiding element is in contact with the liquid buffer space, and the other end is in contact with the first liquid guiding element, so that the liquid matrix is The liquid storage chamber is transferred into the first liquid guiding element; wherein the first liquid guiding element and the third liquid guiding element are made of flexible porous material, and the second liquid guiding element is made of solid porous material.

In an example, the second liquid guiding element further includes a pressing cotton part, and the second liquid guiding element is kept in contact with the first liquid guiding element through the pressing cotton part, where the second liquid guiding element has the pressing cotton part. The end of the cotton part is also provided with an air guide groove and an air flow channel opening.

Another aspect of the present application provides an ultrasonic nebulizer, comprising:

A liquid storage cavity, used for storing liquid matrix;

The third liquid guiding element is configured to be in fluid communication with the liquid storage cavity, so as to absorb the liquid matrix stored in the liquid storage cavity;

a second liquid-conducting element configured to receive the liquid matrix drawn up by said third liquid-conducting element;

a first fluid-conducting element in contact with said second fluid-conducting element to draw liquid substrate from said second fluid-conducting element;

The ultrasonic atomization component includes an ultrasonic atomization sheet, the ultrasonic atomization sheet is in contact with the first liquid guiding element, so as to ultrasonically atomize the liquid matrix in the first liquid guiding element and form a liquid mist;

Wherein the first fluid guiding element and the third fluid guiding element are made of flexible porous material, and the second fluid guiding element is made of solid porous material;

The second liquid guiding element also includes a pressing part, and the second liquid guiding element is kept in contact with the first liquid guiding element through the pressing part, where the second liquid guiding element has the end where the pressing part is located. An air guide groove and an air flow channel opening are also provided.

In an example, a liquid buffer space is arranged between the second liquid guiding element and the third liquid guiding element.

In one example, the second liquid guiding element includes a plate-shaped liquid guiding body and an airflow channel passing through the liquid guiding body;

One side of the liquid guide body is partially recessed to form the liquid buffer space;

The other side of the liquid guiding body is partially protruded to form the pressed cotton part, and the pressed cotton part is kept in contact with the first liquid guiding element;

The other side of the liquid guiding body is also provided with an air guiding groove communicating with the air flow channel.

In one example, the second liquid conducting element is in direct contact with the third liquid conducting element.

In an example, the ultrasonic atomization assembly further includes an atomization sleeve, the atomization sleeve includes a limiting portion, and one end of the atomization sleeve has an opening, at least part of the first liquid guiding element is exposed to the The opening, the first liquid guiding element is held between the limiting portion and the ultrasonic atomizing sheet.

In one example, the ultrasonic atomization assembly further includes a coupling portion and an electrical connector; the ultrasonic atomization sheet has a first electrode and a second electrode, and one end of the atomization sleeve is also provided with a The abutting portion electrically connected to the first electrode, the other end contacts the coupling portion, and the electrical connector is electrically connected to the second electrode, wherein the coupling portion and the electrical connector are respectively used to communicate with the second electrode. The positive and negative electrical contacts of the power supply assembly are connected to be energized.

Another aspect of the present application also provides an ultrasonic atomization device, including a power supply assembly and the ultrasonic atomizer.

The ultrasonic atomization assembly, the ultrasonic nebulizer and the ultrasonic atomization device provided by the present application keep the first liquid guiding element between the limiting part and the ultrasonic atomizing sheet through the limiting part in the atomizing sleeve, so that The first liquid guiding element is accommodated by the atomizing sleeve and fixed in the atomizing sleeve; at least part of the first liquid guiding element is exposed to the opening at one end of the atomizing sleeve. In the process of assembling and fixing the ultrasonic nebulizer, it is only necessary to install the ultrasonic atomizing component in the corresponding position, and there is no need to reinstall the first liquid guiding element, which can avoid the problem of assembly deviation of the first liquid guiding element ,Increase productivity.

Description of drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplifications do not constitute a limitation to the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the drawings are not limited to scale.

Figure 1 is a schematic diagram of an ultrasonic atomization device provided in an embodiment of the present application;

Fig. 2 is a schematic diagram of another ultrasonic atomization device provided by the embodiment of the present application;

Fig. 3 is a schematic diagram of an ultrasonic nebulizer provided in an embodiment of the present application;

Fig. 4 is an exploded schematic view of the ultrasonic nebulizer provided by the embodiment of the present application;

Fig. 5 is a schematic cross-sectional view of an ultrasonic nebulizer provided in an embodiment of the present application;

Fig. 6 is another schematic cross-sectional view of the ultrasonic nebulizer provided by the embodiment of the present application;

Fig. 7 is a schematic diagram of the first liquid guiding element provided by the embodiment of the present application;

Fig. 8 is a schematic diagram of the second liquid guiding element provided by the embodiment of the present application;

Fig. 9 is a schematic view of another perspective of the second liquid guiding element provided by the embodiment of the present application;

Fig. 10 is a schematic diagram of a seal provided in an embodiment of the present application;

Fig. 11 is a schematic view of another perspective of the seal provided by the embodiment of the present application;

Fig. 12 is a schematic cross-sectional view of another ultrasonic nebulizer provided in an embodiment of the present application;

Fig. 13 is a schematic diagram of a seal in another ultrasonic nebulizer according to an embodiment of the present application;

Fig. 14 is an exploded schematic view of the ultrasonic atomization assembly provided by the embodiment of the present application;

Fig. 15 is a schematic cross-sectional view of the ultrasonic atomization assembly provided by the embodiment of the present application;

Fig. 16 is a schematic cross-sectional view of a conductive atomizing sleeve provided in an embodiment of the present application;

Fig. 17 is a schematic cross-sectional view of another ultrasonic atomization component provided in an embodiment of the present application.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that when an element is said to be "fixed" to another element, it may be directly on the other element, or there may be one or more intervening elements therebetween. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper", "lower", "left", "right", "inner", "outer" and similar expressions are used in this specification for the purpose of description only.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the technical field of this application. The terminology used in the description of the present application is only for the purpose of describing a specific embodiment, and is not used to limit the present application. The term "and/or" used in this specification includes any and all combinations of one or more of the associated listed items.

Fig. 1 is a schematic diagram of an ultrasonic atomization device provided in an embodiment of the present application.

As shown in FIG. 1 , the ultrasonic atomization device 100 includes an ultrasonic atomizer 10 and a power supply assembly 20 , and the ultrasonic atomizer 10 and the power supply assembly 20 are not detachable.

The ultrasonic atomizer 10 includes an ultrasonic atomization component 105 , which generates high-frequency oscillation under the action of power provided by the power supply component 20 , so that the liquid matrix is atomized into an aerosol.

The power supply assembly 20 includes a battery cell 21 and a circuit 22 .

The battery cell 21 provides power for operating the ultrasonic atomization device 100 . The battery cell 21 can be a rechargeable battery cell or a disposable battery cell.

The circuit 22 can control the overall operation of the ultrasonic atomization device 100 . The circuit 22 not only controls the operation of the electric core 21 and the ultrasonic atomization assembly 105 , but also controls the operation of other components in the ultrasonic atomization device 100 .

FIG. 2 is a schematic diagram of another ultrasonic atomization device provided by an embodiment of the present application. The difference from the example in FIG. 1 is that the ultrasonic atomizer 10 is detachably connected to a power supply assembly 20 . Ultrasonic nebulizer 10 has electrical contact 105a and electrical contact 105b, and power supply assembly 20 has electrical contact 20a and electrical contact 20b (positive and negative electrical contacts); When ultrasonic atomizer 10 is connected with power supply assembly 20 , the electrical contact 105a keeps in contact with the electrical contact 20a to form an electrical connection, and the electrical contact 105b keeps in contact with the electrical contact 20b to form an electrical connection.

For ease of description, in the following examples, only the detachable connection between the ultrasonic nebulizer 10 and the power supply assembly 20 will be described.

As shown in Figures 3-6, the ultrasonic atomizer 10 includes:

The upper case 101 is substantially flat and cylindrical. The upper housing 101 has a proximal end and a distal end opposite along the length direction; the proximal end is configured as an end for the user to inhale the aerosol, and a suction mouth for the user to inhale is provided at the proximal end; One end of the power assembly 20 is connected, and the far end of the upper housing 101 is open, and a detachable bottom cover 106 is mounted on it. After being combined with the bottom cover 106, the upper housing 101 and the bottom cover 106 jointly define the housing of the ultrasonic atomizer 10, and its interior is hollow and provided with necessary functional devices for storing and atomizing the liquid matrix; through the upper housing The opening of the body 101 can be used to install various necessary functional components into the housing of the ultrasonic nebulizer 10 .

Please understand with reference to FIG. 16 , the bottom cover 106 is provided with a first electrode hole 1061 and a second electrode hole 1062 . Through the first electrode hole 1061 and the second electrode hole 1062 , the ultrasonic atomization component 105 can be electrically connected with the power supply component 20 . At the same time, an air inlet 1063 is provided on the bottom cover 106 for allowing external air to enter the ultrasonic nebulizer 10 . Further, the bottom cover 106 is further provided with a containing chamber 1065 , the first electrode hole 1061 and the second electrode hole 1062 are located in the containing chamber 1065 , and the air inlet 1063 is located outside the containing chamber 1065 . Further, the bottom cover 106 is also provided with a magnetic connection piece 1064 so that the ultrasonic nebulizer 10 is detachably connected to the power supply assembly 20 .

The interior of the housing is provided with a liquid storage chamber A for storing liquid substrates, a third liquid guide element 102 for absorbing liquid substrates from the liquid storage chamber A, a second liquid guide element 103 for absorbing liquid substrates, and a second seal 104 and an ultrasonic atomization assembly 105 for ultrasonically atomizing a liquid matrix.

The upper casing 101 is provided with a flue gas transmission pipe 1011 arranged in the axial direction, and the space between the outer wall of the flue gas transmission pipe 1011 and the inner wall of the upper casing 101 forms a liquid storage chamber A for storing the liquid matrix; the flue gas One end of the air delivery tube 1011 communicates with the mouth of the mouthpiece, so as to transmit the generated aerosol to the mouth of the mouthpiece for inhalation. In a preferred implementation, the flue gas transmission pipe 1011 and the upper casing 101 are integrally molded from a moldable material, and the liquid storage chamber A formed after preparation is open or open toward the distal end.

Please understand with reference to FIG. 7 , the third liquid guiding element 102 is a layer of sheet-like or block-like organic porous fibers extending along the cross-sectional direction of the upper casing 101 . After assembly, the upper surface of the third liquid guide element 102 close to the liquid storage chamber A is opposite to the liquid storage chamber A and is used to absorb the liquid matrix, and the lower surface facing away from the liquid storage chamber A transfers the liquid matrix to the second liquid guide element 103, As shown by the arrow R1 in the figure. The third liquid guiding element 102 is provided with an insertion hole through which the smoke transmission pipe 1011 passes.

In a preferred implementation, the third liquid guiding element 102 is made of an elastic organic porous material, which exhibits moderate flexibility and rigidity. In practice, the third liquid guiding element 102 has a material smaller than that of the upper casing 101 or defines the liquid storage chamber A, specifically hard rayon with a Shore hardness of 20-70A. In an optional implementation, the third liquid guiding element 102 is rigid rayon made of oriented polyester fibers, or rigid rayon or artificial foam made of filamentary polyurethane. The above third liquid guiding element 102 has a hardness or flexibility between the usual flexible plant cotton/non-woven fabric (Shore hardness less than 20A) and rigid porous ceramic/microporous metal (Shore hardness greater than 80A), so the structure is stable It has extremely low expansion after absorbing and infiltrating the liquid matrix. After assembly, the third liquid guiding element 102 is in contact with the inner wall of the upper casing 101 or the pipe wall of the smoke transmission pipe 1011, which is between flexible contact and rigid contact. On the one hand, it can independently seal the liquid storage chamber A by virtue of its flexibility; on the other hand, it has a certain hardness and can be easily fixed and maintained. Specifically, as shown in the above figures, the shape of the third liquid guiding element 102 is basically adapted to the opening of the lower end of the liquid storage chamber A, and can be used to cover, block and seal the liquid storage chamber A. In a more preferred implementation, the third liquid guiding element 102 has a Shore hardness of 50-70A, which is approximately equivalent to thermoplastic elastomer or silicone.

The third liquid guiding element 102 is generally in the shape of an ellipse, and the insertion hole matched with the smoke transmission pipe 1011 is also in the shape of an ellipse. The third liquid-guiding element 102 is made of oriented fibers such as polyethylene and/or polypropylene that are substantially oriented along the length direction, and the orientation fibers are arranged in the length direction of the third liquid-guiding element 102 so that The liquid guide element 102 exhibits strong bending resistance and thus is hard. Moreover, the third liquid guiding element 102 prepared by using the above organic fibers keeps sufficient gaps between the fiber materials during the preparation process, so that the liquid matrix can be transmitted and the third liquid guiding element 102 has proper flexibility. . The third fluid conducting element 102 having the above oriented fibers is anisotropic. Specifically, on the one hand, at least the flexural strength along the length direction is greater than the flexural strength along the width direction; or on the other hand, the liquid conduction rate along the length direction is greater than that along the width direction.

The surface or inside of the third liquid guiding element 102 has lines 1021 extending along the length direction; specifically, the lines 1021 are prepared by the above-mentioned oriented fibers through a textile process such as roller pressing, and during the preparation process, they are pressed by rollers or The spunlace process increases the distance between some fibers, thereby forming a dent visible to the naked eye at the position where the distance is increased, with a width of less than 1 mm, about 0.1 to 0.5 mm; Forming the texture 1021 on the surface or inside of the element 102 is beneficial for the transfer and retention of the liquid matrix and the improvement of rigidity.

In the third liquid guiding element 102 of the above embodiment, the third liquid guiding element 102 has a length d4 of 16.4 mm, a width d5 of 7.80 mm, and a thickness of 2.0 mm.

Please understand with reference to FIGS. 8-9 , the second liquid guiding element 103 is spaced from the third liquid guiding element 102 . The second liquid guiding element 103 is made of porous material, such as porous ceramics. The second liquid-guiding element 103 includes a substantially plate-shaped liquid-guiding body 1031 , and a central position of the liquid-guiding body 1031 is provided with an airflow channel 1032 penetrating through the liquid-guiding body 1031 . The airflow channel 1032 protrudes from the liquid guiding body 1031 and is in fluid communication with the smoke transmission pipe 1011 , and the aerosol after ultrasonic atomization can be transmitted to the smoke transmission pipe 1011 through the airflow channel 1032 .

The upper surface of the liquid guide body 1031 is partially recessed to form at least part of the liquid buffer space 1033 , and the two liquid buffer spaces 1033 are symmetrically arranged on the left and right sides of the airflow channel 1032 . After assembly, the liquid buffer space 1033 is in fluid communication with the liquid storage chamber A, and the liquid matrix transferred from the third liquid guiding element 102 to the second liquid guiding element 103 can be buffered in the liquid buffer space 1033 . In this way, the contact area between the liquid matrix and the second liquid conducting element 103 is larger, and the speed at which the second liquid conducting element 103 conducts the liquid matrix is increased. The vertical distance from the bottom of the liquid buffer space 1033 to the ultrasonic atomization assembly 105 is 0.5mm-1.5mm (preferably, between 0.5mm-1.4mm; more preferably, between 0.8mm-1.4mm; further preferably, Between 1mm-1.4mm), so that the distance from the liquid matrix in the liquid buffer space 1033 to the ultrasonic atomization assembly 105 is as short as possible, further improving the conduction velocity of the liquid matrix, avoiding the dry burning of the ultrasonic atomization assembly 105, and reducing the amount of smoke more stable.

The lower surface of the liquid guiding body 1031 is partially protruded to form a pressed cotton part 1034 , which is roughly circular in shape, and the pressed cotton part 1034 bears against the ultrasonic atomization assembly 105 . The lower surface of the liquid guide body 1031 is also provided with two air guide grooves 1035, the air guide grooves 1035 communicate with the air flow channel 1032, after the external air enters the ultrasonic nebulizer 10 through the air inlet 1063, it flows in through the air guide grooves 1035 To the airflow channel 1032 (shown by R2 in the figure).

In the above ultrasonic atomizer, the liquid matrix is transferred from the third liquid guiding element 102 to the second liquid guiding element 103, so as to prevent the liquid matrix from being transmitted to the ultrasonic atomizing sheet 1051 too much or too fast to cause fried oil.

As shown in FIGS. 10-11 , the second sealing member 104 includes a first part 1041 and a second part 1042 that are integrally formed. The second sealing member 104 is preferably made of flexible material such as silicone, thermoplastic elastomer. After assembly, the first part 1041 is positioned between the inner wall of the upper housing 101 and the liquid guiding body 1031, and the second part 1042 is positioned between the airflow channel 1032 and the smoke transmission pipe 1011, thereby forming a seal. The upper end of the first portion 1041 abuts against the lower surface of the third liquid-conducting element 102 to at least partly hold the third liquid-conducting element 102 .

The first part 1041 has two liquid passage holes 1041a, and the liquid matrix transferred from the third liquid guide element 102 to the second liquid guide element 103 can be buffered in the liquid buffer space 1033 through the liquid passage holes 1041a. The outer surface of the first part 1041 has a first rib 1041b extending in the circumferential direction, and the first rib 1041b abuts against the inner wall of the upper housing 101; the inner surface of the first part 1041 has a second rib 1041c extending in the circumferential direction, and The two raised ribs 1041c are in contact with the liquid guiding body 1031; through the first rib 1041b and the second rib 1041c, a better sealing effect can be formed. The outer surface of the second part 1042 has a third rib 1042a extending in the circumferential direction, and the third rib 1042a abuts against the smoke transmission pipe 1011 to form a better sealing effect. A third step (not shown) is also formed on the inner surface of the first part 1041 , and the third step abuts against the upper end of the liquid guiding body 1031 to further form a better sealing effect.

In a further preferred implementation, the ultrasonic nebulizer 10 also includes an air channel for supplying air into the liquid storage chamber A, so as to supplement air into the liquid storage chamber A and relieve the negative pressure in the liquid storage chamber A caused by the consumption of the liquid matrix . Specifically, in practice, the second part 1042 is provided with a groove 1042b, and the air in the airflow channel 1032 or the smoke transmission pipe 1011 flows into the liquid buffer space 1033 through the groove 1042b, and then flows to the liquid storage chamber A (R3 in the figure shown).

Please understand in conjunction with FIGS. 12-13 , in another example, the ultrasonic nebulizer 10 has a second liquid-guiding element 1003 and a second sealing member 1004 that are different from those shown in FIGS. 3-11 .

The second liquid-guiding element 1003 has an annular body, and the liquid matrix transferred from the third liquid-guiding element 102 to the second liquid-guiding element 1003 is transferred to the ultrasonic atomization assembly 105 (indicated by R1 in FIG. 12 ) through the annular body. The annular body has an airflow passage, and air guide grooves are arranged on both sides thereof. After the external air enters the ultrasonic nebulizer 10 through the air inlet 1063 , it passes through the air guide groove at least once and flows into the airflow channel (shown by R2 in FIG. 12 ). The air guiding groove includes an airflow guiding surface extending obliquely towards the outside of the airflow channel, so that the redirected airflow can flow out from the air guiding groove into the airflow channel at a predetermined angle. In this way, the mixing of air and atomized particles is beneficial, and the experience of suction is improved.

The second sealing member 1004 includes an airflow hole 1004a, an airflow groove 1004b and a first notch groove 1004c. After external air enters the ultrasonic nebulizer 10 through the air inlet 1063, it can flow into the airflow groove 1004b through the airflow hole 1004a, and pass through the first notch groove 1004c, the third liquid guiding element 102 and the inner wall of the upper housing 101 The gap between them flows to the liquid storage chamber A (shown by R3 in Figure 12). In this way, the negative pressure in the liquid storage chamber A can be relieved, which facilitates the transfer of the liquid matrix.

Further, the second sealing member 1004 also includes a second notch groove 1004d. The liquid matrix in the liquid storage chamber A that penetrates into the air flow groove 1004b can flow into the second liquid guiding element 1003 through the second notch groove 1004d, and then flow into the ultrasonic atomization component 105. In this way, on the one hand, the risk of liquid leakage can be avoided, and on the other hand, the utilization rate of the liquid matrix can be improved.

Please understand in conjunction with Figures 14-16 that the ultrasonic atomization assembly 105 includes an ultrasonic atomization sheet 1051, a first electrical connector (1052, 1053), a second electrical connector 1054, a first seal 1055, a resistance plate 1056 and The first liquid guiding element 1057 .

Both the first liquid guiding element 1057 and the ultrasonic atomizing sheet 1051 are in the shape of a round pie. The first liquid guiding element 1057 is made of common flexible plant cotton, or other liquid guiding elements made of elastic porous materials. The upper surface (or atomizing surface) of the ultrasonic atomizing sheet 1051 is formed with a first electrode, and the lower surface is formed with a second electrode. In a preferred implementation, the ultrasonic atomizing sheet 1051 includes a piezoelectric ceramic substrate, and a through hole is provided in the middle region thereof.

The first electrical connector (1052, 1053) includes an atomizing sleeve 1052 and a coupling portion 1053, both of which are made of conductive material. The ultrasonic atomizing sheet 1051 , the second electrical connector 1054 , the first sealing member 1055 , the resistance plate 1056 and the first liquid guiding element 1057 are all arranged or accommodated in the atomizing sleeve 1052 .

The atomization sleeve 1052 includes a main body 1052a, a limiting portion 1052c and an abutting portion 1052b. The main body 1052a is cylindrical, that is, it is hollow inside and has openings at both upper and lower ends. The limiting part 1052c and the abutting part 1052b can be formed by bending the part of the body 1052a near the upper end twice, the limiting part 1052c is located above the abutting part 1052b, and both the limiting part 1052c and the abutting part 1052b face the atomizing sleeve The inner radial direction of 1052 extends, and the limiting portion 1052c and the abutting portion 1052b are arranged in a step shape along the extending direction from the upper end of the atomizing sleeve 1052 to the lower end of the atomizing sleeve 1052 . It is easy to imagine that the limiting portion 1052c and the abutting portion 1052b can be formed in various ways, and are not limited to the foregoing description, for example: the limiting portion 1052c and the abutting portion 1052b formed by welding the external member on the body 1052a , is also feasible.

After assembly, part of the first liquid guiding element 1057 abuts against the stopper 1052c; part of the upper surface of the ultrasonic atomizing sheet 1051 abuts against the lower surface of the first liquid guiding element 1057 and another part of the upper surface (with the first electrode) Abut against the abutting portion 1052b; in this way, the ultrasonic atomizing sheet 1051 remains in contact with the abutting portion 1052b and forms an electrical connection, and part of the first liquid guiding element 1057 is held between the limiting portion 1052c and the ultrasonic atomizing sheet 1051, Another part of the first liquid guiding element 1057 is exposed at the upper opening of the main body 1052 a and abuts against the pressing cotton part 1034 .

In a preferred implementation, the distance h between the limiting portion 1052c and the abutting portion 1052b is slightly smaller than the thickness of the first liquid guiding element 1057, which is beneficial for clamping part of the first liquid guiding element 1057 on the limiting portion 1052c and ultrasonic atomization. Between slices 1051.

As can be seen from the above, the upper surface area of the ultrasonic atomizing sheet 1051 is greater than the lower surface area of the first liquid guiding element 1057 (or the cross-sectional area of the first liquid guiding element 1057); the part of the upper surface of the first liquid guiding element 1057 It is exposed at the upper end opening of the body 1052a; on the upper surface of the ultrasonic atomizing sheet 1051 not covered by the first liquid guiding element 1057, at least part of the first electrode is formed, that is, the first electrode located outside the first liquid guiding element 1057 At least part of the first electrode is formed on the upper surface of part of the ultrasonic atomizing sheet 1051 . The cross-sectional area of the first liquid guiding element 1057 is larger than the area of the upper opening of the body 1052a.

The second electrical connector 1054 is an elastic electrode with a conductive spring. One end of the second electrical connector 1054 is kept in contact with the second electrode and forms an electrical connection, and the other end extends toward the lower end of the atomizing sleeve 1052 and is arranged flush with the lower end of the atomizing sleeve 1052 .

The first sealing member 1055 is roughly ring-shaped, and the first sealing member 1055 includes an elastic element made of insulating elastic material, such as silica gel, soft glue and the like. The first sealing member 1055 is sleeved on the second electrical connector 1054, its upper end abuts against the lower surface of the ultrasonic atomizing sheet 1051, and its peripheral sidewall abuts against the inner wall of the atomizing sleeve 1052; Good sealing, on the other hand, can reduce the vibration transmission of the ultrasonic atomizing sheet. Similar to the aforementioned second sealing member 104, ribs may be provided on the upper end and/or the peripheral sidewall of the first sealing member 1055 to form a better sealing effect.

The resistance plate 1056 is in the shape of a square, and a through hole is arranged in the middle thereof, through which the resistance plate 1056 is sleeved on the second electrical connector 1054 . The resistor plate 1056 is disposed between the coupling portion 1053 and the second electrical connector 1054, and has a first electrical connection terminal (not shown) that is directly or indirectly electrically connected to the coupling portion 1053, and is connected to the second electrical connector. The connector 1054 is directly or indirectly electrically connected to a second electrical connection terminal (not shown). The resistance plate 1056 can consume the energy stored in the ultrasonic atomizing sheet 1051 after it is energized and disconnected, so as to ensure that the ultrasonic atomizing sheet 1051 can work normally after being powered on again, and prevent the ultrasonic atomizing sheet 1051 from burning due to the release of instantaneous high voltage after being energized again. damage other electronic components.

In an optional embodiment, the first sealing member 1055 includes an elastic conductive element made of a mixture of elastic material and metal particles, and the elastic material can be silica gel, soft glue or the like. The elastic conductive element is in elastic contact with the ultrasonic atomizing sheet 1051; one area of the elastic conductive element is directly or indirectly electrically connected to the first electrical connector (1052, 1053), and the other area of the elastic conductive element is directly ground or indirectly electrically connected to the second electrical connector 1054 . In this way, there is no need to set the resistance plate 1056, and the vibration transmission of the ultrasonic atomizing sheet 1051 is reduced by the elasticity of the first sealing member 1055 itself; An electrical connection is formed, thereby forming a loop to consume the energy stored by the ultrasonic atomizing sheet 1051 after power-on and disconnection, ensuring that the ultrasonic atomizing sheet 1051 can work normally after being powered on again, and avoiding the release of instantaneous high voltage after the ultrasonic atomizing sheet 1051 is powered on again. voltage and burn out other electronic components.

The coupling part 1053 forms the electrical contact 105 a of the ultrasonic nebulizer 10 , and the second electrical connection part 1054 forms the electrical contact 105 b of the ultrasonic nebulizer 10 . The coupling portion 1053 is ring-shaped and sleeved on the second electrical connector 1054 , and the coupling portion 1053 is flush with the lower end of the atomizing sleeve 1052 . The coupling part 1053 is kept in contact with the atomizing sleeve 1052 and forms an electrical connection, and the coupling part 1053 is kept at a distance from the second electrical connection part 1054. The coupling portion 1053 is used for electrical connection with the power supply assembly 20 . After assembly, the ultrasonic atomization assembly 105 is partly accommodated in the accommodation chamber 1065 , the first electrode hole 1061 is coaxially arranged with the second electrical connector 1054 , and the second electrode hole 1062 is arranged correspondingly with the coupling part 1053 .

It should be noted that, in other examples, the first electrode and the second electrode may respectively extend to the peripheral side of the ultrasonic atomizing sheet 1051 to connect with the first electrical connector (1052, 1053), the second electrical connector 1054 keeps in contact to form an electrical connection; the first electrode can also be formed on the upper surface of the ultrasonic atomizing sheet 1051 and extend to the lower surface of the ultrasonic atomizing sheet 1051 to form in contact with the first electrical connector (1052, 1053) are electrically connected, and the second electrode is formed on the lower surface of the ultrasonic atomizing sheet 1051 .

It should be noted that, in other examples, the ultrasonic atomizing sheet 1051 may be in a non-circular pie shape.

It should be noted that, in other examples, it is also feasible for the first electrical connection member to be implemented by one or an integrally formed structural member. For example: the lower end of the atomizing sleeve 1052 is bent inward to form the coupling portion 1053 .

It should be noted that, in other examples, the atomizing sleeve 1052 is made of non-conductive material, and it is also feasible to maintain contact with and form an electrical connection with the first electrode of the ultrasonic atomizing sheet 1051 through other electrical connectors. At this time, the atomizing sleeve 1052 may only include a limiting portion 1052c, and hold part of the first liquid guiding element 1057 between the limiting portion 1052c and the ultrasonic atomizing sheet 1051 .

It should be noted that, in other examples, the ultrasonic atomization assembly 105 can only be composed of the ultrasonic atomization sheet 1051, the first liquid guide element 1057 and the atomization sleeve 1052, and the ultrasonic atomization assembly 105 is set in the ultrasonic atomization In the device 10; and the first electrical connector (1052, 1053), the second electrical connector 1054, the first sealing member 1055 and the resistance plate 1056 can be arranged in the ultrasonic nebulizer 10; the first electrical connector (1052, 1053 ), the second electrical connector 1054 can also be set in the power supply assembly 20 , which is also feasible; similarly, the resistance plate 1056 can also be set in the power supply assembly 20 .

It should be noted that, in other examples, only one of the second liquid guiding element 103 and the third liquid guiding element 102 may be reserved, which is also feasible.

It should be noted that for the ultrasonic nebulizer 10 with three levels of liquid conduction, that is, the ultrasonic nebulizer 10 with the first liquid conduction element 1057, the second liquid conduction element 103 and the third liquid conduction element 102, in other examples Among them, the ultrasonic atomization assembly 105 can adopt the structure shown in Figure 17, that is, the solution in which the first liquid guide element 1057 and the ultrasonic atomization sheet 1051 are arranged separately (in this solution, the atomization sleeve 1052 does not have a limiting part). In an example, it can only be composed of the ultrasonic atomization sheet 1051, the first electrical connector (1052, 1053), and the second electrical connector 1054, and the first liquid guiding element 1057 is clamped between the ultrasonic atomization component 105 and the second electrical connector 1054. Between the two liquid guiding elements 103 . Alternatively, the ultrasonic atomization assembly 105 is only composed of an ultrasonic atomization sheet 1051; the first electrical connectors (1052, 1053) and the second electrical connector 1054 can be arranged in the ultrasonic atomizer 10 or the power supply assembly.

It should be noted that, in other examples, the second liquid guiding element 103 may also be made of cotton.

It should be noted that preferred embodiments of the application are given in the specification and accompanying drawings of the application, but the application can be implemented in many different forms, and are not limited to the embodiments described in the specification. These embodiments are not intended as additional limitations on the content of the present application, and the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Moreover, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present application; furthermore, for those of ordinary skill in the art, improvements or changes can be made according to the above description , and all these improvements and transformations should belong to the scope of protection of the appended claims of this application.

Claims

An ultrasonic atomization assembly, characterized in that it comprises:

An ultrasonic atomizing sheet having a first electrode and a second electrode; the ultrasonic atomizing sheet is used for ultrasonically atomizing a liquid matrix to form a liquid mist;

The first liquid guide element is kept in contact with the ultrasonic atomization sheet; the first liquid guide element is used to transfer the liquid matrix to the ultrasonic atomization sheet;

The atomization sleeve includes a limiting portion, and one end of the atomization sleeve has an opening;

Wherein, at least part of the first liquid guiding element is exposed to the opening, and the first liquid guiding element is held between the limiting portion and the ultrasonic atomizing sheet.
The ultrasonic atomization assembly according to claim 1, wherein the cross-sectional area of the first liquid guiding element is larger than the area of the opening.
The ultrasonic atomization assembly according to claim 1, wherein the first liquid guiding element comprises a first surface and a second surface opposite to the first surface;

Part of the first surface is exposed in the opening, and the second surface is kept in contact with the ultrasonic atomizing sheet.
The ultrasonic atomization assembly according to claim 1, wherein the ultrasonic atomization sheet includes a first surface in contact with the first liquid guiding element, and a second surface opposite to the first surface ;

The first electrode is disposed on the first face, and the second electrode is disposed on the second face; or,

The first electrode is arranged on the first surface and extends along the side wall of the ultrasonic atomizing sheet to the second surface, and the second electrode is arranged on the second surface.
The ultrasonic atomization assembly according to claim 1, wherein the atomization sleeve is made of conductive material;

The atomization sleeve also includes an abutment portion, and the abutment portion is kept in contact with the first electrode to form an electrical connection.
The ultrasonic atomization assembly according to claim 5, wherein both the limiting portion and the abutting portion radially extend toward the inside of the atomization sleeve.
The ultrasonic atomization assembly according to claim 6, wherein the distance between the limiting portion and the abutting portion is smaller than the thickness of the first liquid guiding element.
The ultrasonic atomization assembly according to claim 5, characterized in that, the limiting portion and the abutting portion form steps along the extending direction from one end of the atomization sleeve to the other end of the atomization sleeve layout.
The ultrasonic atomization assembly according to claim 5, characterized in that, the ultrasonic atomization assembly further comprises an electrical connector accommodated in the atomization sleeve;

One end of the electrical connector keeps in contact with the second electrode to form an electrical connection, and the other end extends toward the other end of the atomizing sleeve.
The ultrasonic atomization assembly according to claim 9, characterized in that, the ultrasonic atomization assembly further comprises a resistance plate accommodated in the atomization sleeve, and the resistance plate is directly connected to the atomization sleeve. Or the first electrical connection end that is electrically connected indirectly, and the second electrical connection end that is directly or indirectly electrically connected to the electrical connection member.
The ultrasonic atomization assembly according to claim 9, characterized in that, the ultrasonic atomization assembly further comprises an elastic element accommodated in the atomization sleeve, and the elastic element is arranged at intervals between the electrical connector and the atomization sleeve. between the atomizing sleeves and in elastic contact with the ultrasonic atomizing sheet.
The ultrasonic atomization assembly according to claim 9, characterized in that, the ultrasonic atomization assembly further comprises an elastic conductive element accommodated in the atomization sleeve; the elastic conductive element is directly connected to the atomization sleeve or indirectly electrically connected, the elastic conductive element is directly or indirectly electrically connected to the electrical connector; and the elastic conductive element is in elastic contact with the ultrasonic atomizing sheet.
The ultrasonic atomization assembly according to claim 5, wherein the other end of the atomization sleeve is bent inward to form a coupling portion; or,

The ultrasonic atomization assembly further includes a coupling portion accommodated in the atomization sleeve, and the coupling portion is kept in contact with the inner wall of the atomization sleeve to form an electrical connection.
The ultrasonic atomization assembly according to any one of claims 1-4, wherein the atomization sleeve is made of non-conductive material.
The ultrasonic atomization assembly according to any one of claims 1-14, wherein the atomization sleeve is in the shape of a cylinder, and the first liquid guiding element and the ultrasonic atomization sheet are both in the shape of a disc.
An ultrasonic nebulizer, characterized in that it includes a liquid storage chamber for storing a liquid matrix, and an ultrasonic atomization assembly according to any one of claims 1-15; wherein, the liquid storage chamber and the first guide The liquid element is in direct or indirect fluid communication.
The ultrasonic nebulizer according to claim 16, further comprising a second liquid guide element and a third liquid guide element; the third liquid guide element is in fluid communication with the liquid storage cavity to absorb the liquid storage cavity The liquid matrix stored in the liquid cavity, one end of the second liquid guiding element is in contact with the third liquid guiding element, and the other end is kept in contact with the first liquid guiding element, so that the liquid matrix can be transferred from the storage liquid The lumen is passed into the first fluid-guiding element; wherein the first fluid-guiding element and the third fluid-guiding element are made of flexible porous material, and the second fluid-guiding element is made of solid porous material.
The ultrasonic nebulizer according to claim 16, further comprising a second liquid guiding element, a third liquid guiding element and a liquid buffer space; one end of the third liquid guiding element is fluidly connected to the liquid storage cavity connected to absorb the liquid matrix stored in the liquid storage cavity, and the other end is in communication with the liquid buffer space; one end of the second liquid guide element is in contact with the liquid buffer space, and the other end is in contact with the first liquid guide element The elements are kept in contact, so that the liquid matrix is transferred from the liquid storage chamber to the first liquid-guiding element; wherein the first liquid-guiding element and the third liquid-guiding element are flexible porous materials, so The second liquid guiding element is a solid porous material.
The ultrasonic nebulizer according to claim 17 or 18, characterized in that, the second liquid-guiding element further comprises a pressing part, and the second liquid-guiding element is connected to the first liquid-guiding element through the pressing part. To keep in contact, the end where the second liquid guiding element has the pressed cotton part is also provided with an air guiding groove and an air flow channel opening.
An ultrasonic nebulizer, characterized in that it comprises:

A liquid storage cavity, used for storing liquid matrix;

The third liquid guiding element is configured to be in fluid communication with the liquid storage cavity, so as to absorb the liquid matrix stored in the liquid storage cavity;

a second liquid-conducting element configured to receive the liquid matrix drawn up by said third liquid-conducting element;

a first fluid-conducting element in contact with said second fluid-conducting element to draw liquid substrate from said second fluid-conducting element;

The ultrasonic atomization component includes an ultrasonic atomization sheet, the ultrasonic atomization sheet is in contact with the first liquid guiding element, so as to ultrasonically atomize the liquid matrix in the first liquid guiding element and form a liquid mist;

Wherein the first fluid guiding element and the third fluid guiding element are made of flexible porous material, and the second fluid guiding element is made of solid porous material;

The second liquid guiding element also includes a pressing part, and the second liquid guiding element is kept in contact with the first liquid guiding element through the pressing part, where the second liquid guiding element has the end where the pressing part is located. An air guide groove and an air flow channel opening are also provided.
The ultrasonic nebulizer according to claim 20, characterized in that, a liquid buffer space is arranged between the second liquid guiding element and the third liquid guiding element.
The ultrasonic nebulizer according to claim 21, characterized in that, the second liquid guiding element comprises a plate-shaped liquid guiding body and an air flow channel passing through the liquid guiding body;

One side of the liquid guide body is partially recessed to form the liquid buffer space;

The other side of the liquid guiding body is partially protruded to form the pressed cotton part, and the pressed cotton part is kept in contact with the first liquid guiding element;

The other side of the liquid guiding body is also provided with an air guiding groove communicating with the air flow channel.
The ultrasonic nebulizer according to claim 20, wherein the second liquid-guiding element is in direct contact with the third liquid-guiding element.
The ultrasonic atomizer according to claim 20, wherein the ultrasonic atomization assembly further comprises an atomization sleeve, the atomization sleeve includes a limiting portion, and one end of the atomization sleeve has an opening, the At least part of the first liquid guiding element is exposed to the opening, and the first liquid guiding element is held between the limiting portion and the ultrasonic atomizing sheet.
The ultrasonic atomizer according to claim 24, characterized in that, the ultrasonic atomization assembly further includes a coupling portion and an electrical connector; the ultrasonic atomization sheet has a first electrode and a second electrode, the One end of the atomization sleeve is also provided with an abutment portion electrically connected to the first electrode, and the other end contacts the coupling portion, and the electrical connector is electrically connected to the second electrode, wherein the coupling The part and the electrical connector are respectively used to connect with the positive and negative electrical contacts of the power supply assembly to be energized.
An ultrasonic atomization device, characterized by comprising a power supply assembly and the ultrasonic atomizer according to any one of claims 16-25.