CN220097164U - Mist outlet spray head and ultrasonic atomization device - Google Patents

Abstract

The utility model relates to a mist outlet spray head and an ultrasonic atomization device, wherein the mist outlet spray head is provided with a mist outlet channel, the mist outlet channel comprises a diffusion heating section and a mist outlet aggregation section which are sequentially arranged along the axial direction, the axial length of the diffusion heating section is greater than that of the mist outlet aggregation section, the inner diameter of the diffusion heating section is greater than that of the mist outlet aggregation section, and a heating element is arranged on the diffusion heating section. Above-mentioned go out fog shower nozzle, the aerosol that flows out from the holding tank flows into outside atmosphere through diffusion heating section, play fog gathering section in proper order, because the axial length of diffusion heating section is greater than the axial length of play fog gathering section, the internal diameter of diffusion heating section is greater than the internal diameter of play fog gathering section, consequently, the aerosol can evenly mix in diffusion heating section and have higher temperature uniformity, and the flow velocity of aerosol can then be improved to play fog gathering section that axial length and internal diameter are less, make the aerosol that flows out the shower nozzle strike the user with higher velocity of flow, improve user's use experience.

Description

Mist outlet spray head and ultrasonic atomization device

Technical Field

The utility model relates to the technical field of atomization, in particular to a mist outlet nozzle and an ultrasonic atomization device.

Background

The ultrasonic atomization technology is widely applied to the fields of electronic atomizers, humidifiers, medical equipment, beauty equipment and the like. The principle of ultrasonic atomization is that ultrasonic directional pressure is utilized to make the surface of liquid swell, cavitation is generated around the surface of the swelled liquid, so that the liquid is atomized into small molecular aerosol. The ultrasonic atomizer utilizes electron high frequency to vibrate, through the high frequency resonance of ceramic atomizing piece, breaks up liquid water molecule structure and produces natural elegant water smoke, compares with the atomizing mode of traditional heating, utilizes the ultrasonic atomizer of high frequency vibration to need not heat or add any chemical reagent, can also effective energy saving.

However, due to structural defects, the sprayed mist of the existing ultrasonic atomization device cannot maintain ideal temperature due to uneven heating, so that the experience of a user is reduced, and the further popularization and application of the ultrasonic atomization device are not facilitated.

Disclosure of Invention

Accordingly, it is necessary to provide a mist outlet nozzle and an ultrasonic atomizing device for solving the problem that mist sprayed from the ultrasonic atomizing device is heated unevenly.

The utility model provides a go out fog shower nozzle, go out fog shower nozzle has out fog passageway, go out fog passageway and include the diffusion heating section that sets gradually along the axial and go out fog gathering section, the axial length of diffusion heating section is greater than go out the axial length of fog gathering section, the internal diameter of diffusion heating section is greater than go out the internal diameter of fog gathering section, diffusion heating section is equipped with heating element.

In one embodiment, the mist outlet channel further comprises a mist inlet section, the axial length of the diffusion heating section is greater than that of the mist inlet section, and the inner diameter of the diffusion heating section is greater than that of the mist inlet section.

In one embodiment, the heating element comprises a temperature control layer arranged on the inner wall of the diffusion heating section, and the temperature control layer can generate heat under the action of electric energy.

In one embodiment, the temperature control layer comprises a mounting seat and a temperature control tube, the mounting seat is bent and extended along the circumferential direction of the diffusion heating section and covers the inner wall of the diffusion heating section, the temperature control tube is arranged on the inner wall of the mounting seat, and the temperature control tube is bent and extended along the circumferential direction of the diffusion heating section.

In one embodiment, the heating element is disposed in the hollow portion of the diffusion heating section, and the heating element generates heat under the action of electric energy.

In one embodiment, the ratio of the axial length of the diffusion heating section to the axial length of the mist-emitting and collecting section is 10-14.

In one embodiment, the axial length of the diffusion heating section is 14mm-18mm, and the axial length of the mist collecting section is 0.5mm-2mm.

In one embodiment, the inner diameter of the diffusion heating section is 6mm-8mm, and the inner diameter of the mist collecting section is 3mm-8mm.

The ultrasonic atomization device comprises the mist outlet spray head, the ultrasonic atomization device further comprises an atomizer, the mist outlet spray head is connected with the atomizer in a matched mode, and the diffusion heating section is located between the atomizer and the mist outlet aggregation section.

In one embodiment, the mist outlet channel further comprises a mist inlet section, the axial length of the diffusion heating section is greater than that of the mist inlet section, and the inner diameter of the diffusion heating section is greater than that of the mist inlet section; the mist outlet spray head is further provided with a containing groove positioned at one end of the mist inlet section, which is opposite to the diffusion heating section, the atomizer further comprises a liquid storage component and an ultrasonic atomization sheet, and the ultrasonic atomization sheet is adapted to the containing groove

Above-mentioned go out fog shower nozzle, the aerosol that flows out from the holding tank flows into outside atmosphere through diffusion heating section, play fog gathering section in proper order, because the axial length of diffusion heating section is greater than the axial length of play fog gathering section, the internal diameter of diffusion heating section is greater than the internal diameter of play fog gathering section, consequently, the aerosol can evenly mix in diffusion heating section and have higher temperature uniformity, and the flow velocity of aerosol can then be improved to play fog gathering section that axial length and internal diameter are less, make the aerosol that flows out the shower nozzle strike the user with higher velocity of flow, improve user's use experience.

Drawings

Fig. 1 is a schematic view of an ultrasonic atomizing device according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of the ultrasonic atomizing device shown in fig. 1.

Fig. 3 is an enlarged view of a portion of the ultrasonic atomizing device shown in fig. 2 at a.

Fig. 4 is an exploded view of an ultrasonic atomizing device according to an embodiment of the present utility model.

Fig. 5 is a cross-sectional view of an atomizer according to an embodiment of the present utility model.

FIG. 6 is another angular cross-sectional view of an atomizer according to an embodiment of the utility model.

Fig. 7 is a schematic structural diagram of a temperature control layer according to an embodiment of the utility model.

Reference numerals illustrate:

100. an ultrasonic atomizing device; 10. a liquid storage component; 12. a liquid storage cup; 121. a liquid storage cavity; 14. a knob; 141. a first mounting hole; 143. positioning columns; 30. a mist outlet nozzle; 32. a first axial end; 321. a receiving groove; 323. a second mounting hole; 325. a heat radiation hole; 34. a second axial end; 341. a mist outlet passage; 341a, a mist inlet section; 341b, a diffusion heating section; 341c, a mist collecting section; 343. a temperature control layer; 3432. a mounting base; 3434. a temperature control tube; 50. a fastener; 70. a heat dissipation assembly; 72. a heat sink; 721. positioning holes; 74. a first clamping member; 76. a second clamping member; 90. ultrasonic atomizing sheet.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model 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 utility model. The present utility model 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 utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

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 utility model, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," 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 utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "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 terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1 to 4, fig. 1 shows a schematic view of an ultrasonic atomizing device according to an embodiment of the present utility model, fig. 2 shows a cross-sectional view of an ultrasonic atomizing device according to an embodiment of the present utility model, fig. 3 shows a partially enlarged view at a in fig. 2, and fig. 4 shows an exploded schematic view of an ultrasonic atomizing device according to an embodiment of the present utility model. An ultrasonic atomizing device 100 according to an embodiment of the present utility model is configured to ultrasonically atomize a liquid atomized liquid such as a liquid medicine to generate an aerosol for a user to use.

The ultrasonic atomizing device 100 comprises an atomizer and a mist outlet nozzle 30 connected with the atomizer in a matching way, wherein the atomizer comprises a liquid storage assembly 10, a heat dissipation assembly 70 and an ultrasonic atomizing sheet 90. The liquid storage assembly 10 is provided with a liquid storage cavity 121 for storing atomized liquid, the mist outlet spray head 30 is connected to the liquid storage assembly 10 in a matching mode, one end, close to the liquid storage assembly 10, of the mist outlet spray head 30 is provided with a containing groove 321 communicated with the liquid storage cavity 121 and the external atmosphere, and one end, far away from the liquid storage assembly 10, of the mist outlet spray head 30 is provided with a mist outlet channel 341 communicated with the containing groove 321 and the external atmosphere. The heat dissipation assembly 70 is accommodated in the accommodating groove 321, the ultrasonic atomization sheet 90 is embedded in the heat dissipation assembly 70 and is adapted to the accommodating groove 321, and the ultrasonic atomization sheet 90 can generate high-frequency vibration under the action of electric energy.

In the operation process of the ultrasonic atomizing device 100, the atomized liquid stored in the liquid storage cavity 121 of the liquid storage assembly 10 enters the accommodating groove 321, and is atomized to form aerosols under the high-frequency vibration of the ultrasonic atomizing sheet 90, and the aerosols are ejected through the aerosol outlet channel 341 for the user to take. Meanwhile, heat generated by the ultrasonic atomizing plate 90 in the vibration process can be released to the external atmosphere through the heat dissipation assembly 70, so that the temperature of the atomized liquid in the liquid storage cavity 121 is prevented from rising.

Specifically, the reservoir assembly 10 includes a reservoir cup 12 and a knob 14. The liquid storage cup 12 is of a hollow shell structure to form a liquid storage cavity 121, and an installation part for being matched with the knob 14 is arranged on the outer side wall of the liquid storage cup 12 in a protruding mode. The knob 14 is in a hollow ring-shaped structure, and the knob 14 is detachably connected in the mounting part through a buckle. The knob 14 is provided with a plurality of first mounting holes 141, and all the first mounting holes 141 are circumferentially spaced apart for mounting the mist head 30. The end surface of one end of the knob 14, which is opposite to the liquid storage cavity 121, is further provided with a plurality of positioning columns 143 in a protruding manner, and all the positioning columns 143 are arranged at intervals along the circumferential direction and are located inside the first mounting hole 141, so as to realize positioning of the heat dissipation assembly 70. In the following embodiments, the axial direction defining the liquid outlet of the liquid storage chamber 121 is a first direction, and the central axis of the knob 14 extends in the first direction.

The mist outlet nozzle 30 is substantially in a solid of revolution, the central axis direction of the mist outlet nozzle 30 extends along a first direction, and the cross section of the mist outlet nozzle 30 perpendicular to the first direction is circular. The mist head 30 includes a first axial end 32 and a second axial end 34 that are connected to each other in an axial direction, and the first axial end 32 has an outer diameter that is larger than the second axial end 34. The first axial end 32 is coupled to the liquid storage assembly 10, an end surface of the first axial end 32 opposite to the second axial end 34 is provided with a containing groove 321 and a plurality of second mounting holes 323 surrounding the containing groove 321 along the circumferential direction, and fasteners 50 such as screws can sequentially pass through the first mounting holes 141 of the knob 14 and the second mounting holes 323 of the mist outlet nozzle 30 to connect the mist outlet nozzle 30 and the knob 14. The first axial end 32 is further provided with a heat dissipation hole 325 communicating the accommodating groove 321 with the external atmosphere, and the heat dissipation component 70 accommodated in the accommodating groove 321 can dissipate heat through the heat dissipation hole 325.

It will be appreciated that the coupling of the mist head 30 to the knob 14 is not limited thereto, and in other embodiments, the coupling may be achieved by magnetic attraction, or the like.

As shown in fig. 5 and 6, the mist outlet channel 341 is formed in the second axial end 34, the mist outlet channel 341 extends along the first direction, and includes a mist inlet section 341a, a diffusion heating section 341b and a mist outlet collecting section 341c that are sequentially communicated along the first direction (i.e. the axial direction of the mist outlet nozzle 30), the diffusion heating section 341b is connected between the mist inlet section 341a and the mist outlet collecting section 341c, one end of the mist inlet section 341a away from the diffusion heating section 341b is communicated with the accommodating groove 321, and one end of the mist outlet collecting section 341c away from the diffusion heating section 341b is connected with the external atmosphere. Wherein, the axial length L1 of the diffusion heating section 341b is greater than the axial length L2 of the mist outlet collecting section 341c, the inner diameter R1 of the diffusion heating section 341b is greater than the inner diameter R2 of the mist outlet collecting section 341c, and the diffusion heating section 341b is provided with a heating element.

In this way, the aerosol flowing out of the accommodating groove 321 flows into the external atmosphere through the mist inlet section 341a, the diffusion heating section 341b and the mist outlet aggregation section 341c in sequence, and the axial length L1 of the diffusion heating section 341b is greater than the axial length L2 of the mist outlet aggregation section 341c, and the inner diameter R1 of the diffusion heating section 341b is greater than the inner diameter R2 of the mist outlet aggregation section 341c, so that the aerosol can be uniformly mixed in the diffusion heating section 341b to have higher temperature consistency, and the mist outlet aggregation section 341c can improve the flow speed of the aerosol, so that the aerosol flowing out of the mist outlet nozzle 30 can impact a user at a higher flow speed, and the use experience of the user is improved.

Specifically, in some embodiments, the ratio L1 of the axial length L1 of the diffusion heating section 341b to the axial length L2 of the mist-exiting aggregation section 341 c: l2 is 10-14, and has higher flow rate while enabling the aerosol to have higher temperature consistency.

Further in some embodiments, the axial length L1 of the diffusion heating section 341b is greater than the axial length L3 of the mist inlet section 341a, and the inner diameter of the diffusion heating section 341b is greater than the inner diameter R3 of the mist inlet section 341 a.

More specifically, in some embodiments, the axial length L1 of the diffusion heating stage 341b is 14mm to 18mm, preferably 16mm, and the axial length L2 of the mist collecting stage 341c is 0.5mm to 2mm, preferably 1.3mm. The inner diameter R1 of the diffusion heating section 341b is 6mm to 8mm, preferably a minimum value of 7.4mm, and the inner diameter R2 of the mist collecting section 341c is 3mm to 8mm, preferably a minimum value of 4mm. The axial length L3 of the mist inlet piece 341a is 0.5mm to 2mm, preferably a minimum value of 1.5mm, and the inner diameter R3 of the mist inlet piece 341a is 3mm to 8mm, preferably a minimum value of 3.7mm. It will be appreciated that the axial length and inner diameter of the mist inlet piece 341a are not limited thereto, and may be set as needed to meet various requirements.

In this way, the aerosol outlet channels 341 are formed into a shape with small inner diameter and short length at the two end parts and long inner diameter and long length at the middle part, and the structure can enable the aerosol to be heated sufficiently, effectively improve the temperature of the aerosol flowing out of the aerosol outlet channels 341, and enable the aerosol flowing out of the aerosol outlet channels 341 to have higher flow velocity.

In some embodiments, the inner diameter of the end of the mist inlet section 341a connected to the diffusion heating section 341b gradually increases from the end far from the diffusion heating section 341b to the end connected to the diffusion heating section 341b, and the inner wall of the end of the mist inlet section 341a connected to the diffusion heating section 341b smoothly extends, the inner diameter of the end of the mist outlet aggregation section 341c connected to the diffusion heating section 341b gradually decreases from the end connected to the diffusion heating section 341b to the end far from the diffusion heating section 341b, and the inner wall of the end of the mist outlet aggregation section 341c connected to the diffusion heating section 341b smoothly extends, thereby reducing the on-way resistance, and enabling the aerosol to smoothly flow in the mist outlet channel 341.

In some embodiments, the heating element includes a temperature control layer 343 disposed on an inner wall of the diffusion heating section 341b, and the temperature control layer 343 can generate heat under the action of electric energy, so as to regulate the temperature of the aerosol in the diffusion heating section 341 b. By combining the design of the length and the inner diameter of the diffusion heating section 341b, the aerosol in the diffusion heating section 341b is fully heated, and the experience of a user is effectively improved. In particular, in one embodiment, the temperature of the aerosol exiting the mist outlet channel 341 is constant at 38 ℃, thereby providing a good feel to the user. It can be understood that the temperature can be controlled to different values by controlling the heating temperature, heating time, heating area, etc. of the temperature control layer 343 to meet different requirements.

Specifically, in one embodiment, the temperature control layer 343 includes a mounting base 3432 and a temperature control tube 3434, the mounting base 3432 is bent and extended along the circumferential direction of the diffusion heating section 341b to form a ring structure covering the inner wall of the diffusion heating section 341b, and the temperature control tube 3434 is disposed inside the mounting base 3432 and is bent and extended along the circumferential direction, so that each region of the temperature control layer 343 is heated uniformly. As a preferred embodiment, the temperature control tube 3434 is in a zigzag and reciprocating extension in the circumferential direction of the diffusion heating section 341 b. It is understood that the shape of the temperature control tube 3434 is not limited, and can be set as needed to achieve different temperature control effects.

In other embodiments, a heating element is disposed in the hollow portion of the diffusion heating section 341b and spaced from the inner wall of the diffusion heating section 341b, and the heating element generates heat under the action of electric energy to heat the aerosol flowing through the diffusion heating section 341 b.

Referring back to fig. 2, 3 and 4, the heat sink assembly 70 includes a heat sink 72, a first clamping member 74 and a second clamping member 76. The heat dissipation element 72 has a substantially annular structure, and a central axis of the heat dissipation element 72 extends along the first direction. One end face of the heat dissipation element 72 is attached to one end face of the knob 14, which is provided with the positioning columns 143, and one end face of the heat dissipation element 72 attached to the knob 14 is provided with a plurality of positioning holes 721 distributed at intervals along the circumferential direction, each positioning hole 721 is arranged corresponding to one positioning column 143, and the positioning columns 143 can be inserted into the positioning holes 721 to position the heat dissipation element 72. An annular second limiting groove is formed in the end face, facing away from the liquid storage cavity 121, of the heat dissipation part 72, and the central axis of the second limiting groove extends along the first direction and is used for limiting the first clamping part 74.

Further, the heat sink 72 is made of a metal material having a high thermal conductivity, including one or more of gold, silver, copper, and aluminum, preferably a red copper material, so as to have a good heat dissipation property.

The first clamping piece 74 is of a circular ring structure, the first clamping piece 74 is installed on one side of the mist outlet nozzle 30 facing the heat dissipation piece 72, one side of the first clamping piece 74 is clamped in the first limiting groove, and the other side of the first clamping piece 74 is convexly arranged in the first limiting groove. The second clamping piece 76 is also in a circular ring structure, the second clamping piece 76 is arranged on one side of the heat dissipation piece 72, which is opposite to the liquid storage cavity 121, one side of the second clamping piece 76 is clamped in a second limiting groove on the mist outlet nozzle 30, and the other side of the second clamping piece 76 is convexly arranged in the second limiting groove. The first clamping member 74 and the second clamping member 76 are disposed at intervals in the first direction, the ultrasonic atomizing sheet 90 is clamped between the first clamping member 74 and the second clamping member 76, and the first clamping member 74 and the second clamping member 76 respectively contact edges of opposite sides in the thickness direction of the ultrasonic atomizing sheet 90.

Further, the first clamping member 74 and the second clamping member 76 are each formed of a material having a certain elasticity such as silicone rubber, and the first clamping member 74 and the second clamping member 76 may be compressed to some extent to prevent leakage of liquid when clamping the ultrasonic atomizing sheet 90.

The ultrasonic atomizing plate 90 has a substantially circular plate-like structure, and the middle portion of the ultrasonic atomizing plate 90 is formed of a metal material, optionally stainless steel, aluminum, preferably stainless steel material, and the edge portion of the ultrasonic atomizing plate 90 is formed of a ceramic material, optionally high-dielectric-strength material such as alumina, zirconia, quartz, etc. The middle part formed of a metal material and the edge part formed of a ceramic material are integrally connected by bonding, and the middle part of the ultrasonic atomizing sheet 90 is provided with a thin convex hull structure protruding toward the direction of the mist outlet channel 341.

Above-mentioned go out fog shower nozzle 30 and ultrasonic atomizing device 100, go out fog shower nozzle 30 and have higher fog speed when making aerosol fully heat, evenly mix including advancing fog section 341a, diffusion heating section 341b and play fog gathering section 341c that set gradually along the axial, improved user's use experience.

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 utility model, 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 utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a go out fog shower nozzle, its characterized in that, go out fog shower nozzle has out fog passageway, go out fog passageway and include the diffusion heating section and go out fog gathering section that set gradually along the axial, the axial length of diffusion heating section is greater than go out fog gathering section's axial length, the internal diameter of diffusion heating section is greater than go out fog gathering section's internal diameter, diffusion heating section is equipped with heating element.

2. The mist outlet nozzle of claim 1, wherein said mist outlet duct further comprises a mist inlet section, said diffusion heating section having an axial length greater than an axial length of said mist inlet section, said diffusion heating section having an inner diameter greater than an inner diameter of said mist inlet section.

3. The mist outlet nozzle of claim 1, wherein the heating element comprises a temperature control layer disposed on an inner wall of the diffusion heating section, the temperature control layer being operable to generate heat under the influence of electrical energy.

4. The mist sprayer of claim 3, wherein the temperature control layer comprises a mounting seat and a temperature control tube, the mounting seat extends along the circumferential direction of the diffusion heating section in a bending manner and covers the inner wall of the diffusion heating section, the temperature control tube is arranged on the inner wall of the mounting seat, and the temperature control tube extends along the circumferential direction of the diffusion heating section in a bending manner.

5. The mist outlet nozzle of claim 1, wherein the heating element is disposed in a hollow portion of the diffusion heating section, the heating element generating heat under the action of electrical energy.

6. The mist outlet nozzle of claim 1, wherein a ratio of an axial length of said diffusion heating section to an axial length of said mist outlet collecting section is 10-14.

7. The mist outlet nozzle of claim 1, wherein the axial length of said diffusion heating section is 14mm-18mm and the axial length of said mist outlet aggregation section is 0.5mm-2mm.

8. The mist outlet nozzle of claim 1, wherein the inner diameter of the diffusion heating section is 6mm-8mm, and the inner diameter of the mist outlet aggregation section is 3mm-8mm.

9. An ultrasonic atomizing device, characterized by comprising the mist outlet nozzle according to any one of claims 1 to 8, further comprising an atomizer, wherein the mist outlet nozzle is connected to the atomizer in a matching manner, and the diffusion heating section is positioned between the atomizer and the mist outlet aggregation section.

10. The ultrasonic atomizing device of claim 9, wherein the mist outlet passage further comprises a mist inlet section, an axial length of the diffusion heating section is greater than an axial length of the mist inlet section, and an inner diameter of the diffusion heating section is greater than an inner diameter of the mist inlet section; the spray nozzle is characterized in that the spray nozzle is further provided with a containing groove positioned at one end of the spray inlet section, which is opposite to the diffusion heating section, and the atomizer further comprises a liquid storage component and an ultrasonic atomization sheet, and the ultrasonic atomization sheet is adapted to the containing groove.