WO2025241908A1 - 雾化喷嘴及雾化仪 - Google Patents

雾化喷嘴及雾化仪

Info

Publication number
WO2025241908A1
WO2025241908A1 PCT/CN2025/093887 CN2025093887W WO2025241908A1 WO 2025241908 A1 WO2025241908 A1 WO 2025241908A1 CN 2025093887 W CN2025093887 W CN 2025093887W WO 2025241908 A1 WO2025241908 A1 WO 2025241908A1
Authority
WO
WIPO (PCT)
Prior art keywords
atomizing
nozzle
hole
nozzle body
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/093887
Other languages
English (en)
French (fr)
Inventor
罗伟龙
卢小钰
刘汀科
张明富
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Solex High Tech Industries Co Ltd
Original Assignee
Xiamen Solex High Tech Industries Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Solex High Tech Industries Co Ltd filed Critical Xiamen Solex High Tech Industries Co Ltd
Publication of WO2025241908A1 publication Critical patent/WO2025241908A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0491—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid the liquid and the gas being mixed at least twice along the flow path of the liquid

Definitions

  • This application relates to the field of atomizer technology, such as an atomizing nozzle and an atomizer.
  • a nebulizer is a device that atomizes liquids and sprays them out, suspending them evenly in the air. Nebulizers can effectively increase the contact area between the medium and the surrounding medium or the human body, and can be widely used in many fields such as beauty, medical and dust removal.
  • ultrasonic atomization which is only suitable for atomizing media with low viscosity, such as water
  • pneumatic atomization which can atomize a wider range of media viscosity than ultrasonic atomization.
  • the viscosity range of media atomized by pneumatic atomization is also limited, and the resulting media particles are relatively large.
  • This application provides an atomizing nozzle and atomizer, which can atomize a wide range of media viscosity and form small media particles after atomization.
  • This application provides an atomizing nozzle, including a nozzle shell and a nozzle body.
  • the nozzle shell has an atomizing chamber, an atomizing hole connecting the atomizing chamber to the outside, and a vent hole connecting the atomizing chamber to an air source.
  • the first end of the nozzle body is disposed in the atomizing chamber.
  • the nozzle body has a flow channel penetrating the nozzle body.
  • the liquid outlet of the flow channel is disposed at the first end of the nozzle body and faces the atomizing hole.
  • the first end of the nozzle body has a plurality of flow guide grooves spaced circumferentially.
  • the plurality of flow guide grooves extend to the end face of the first end of the nozzle body and the extension lines intersect at point a.
  • the end face of the first end of the nozzle body cooperates with the inner surface of the nozzle shell to form a plurality of flow guide gaps.
  • the extension lines of the plurality of flow guide gaps intersect at point b. Points
  • points a and b are both located inside the nozzle housing and on the axis of the atomizing orifice, with point a located on the side of point b closer to the nozzle body.
  • the bottom of the flow guide groove is inclined from the end away from the atomizing hole toward the atomizing hole, and the flow guide gap is inclined from the end away from the atomizing hole toward the atomizing hole.
  • the minimum distance between the first end of the nozzle body and the atomizing hole is L, and the distance between point a and the first end of the nozzle body is L/2.
  • the angle between the bottom of the guide groove and the axis of the atomizing hole is ⁇ , where 13.2 degrees ⁇ ⁇ ⁇ 29.5 degrees.
  • the flow channel is straight
  • the nozzle housing includes an outlet, an inlet, and a middle section
  • the middle section is disposed between the outlet and the inlet
  • the middle section cooperates with the outlet to form a closed flow guide cavity
  • the middle section cooperates with the inlet to form a closed ventilation cavity
  • the atomizing hole is opened in the outlet
  • the flow guide cavity and the ventilation cavity together form the atomizing cavity
  • the nozzle body passes through the middle section
  • the middle section has a plurality of connecting holes that surround the nozzle body and are equidistantly arranged.
  • the radius of the flow channel gradually decreases from the end furthest from the outlet to the end closest to the outlet.
  • both the outlet and the inlet are configured as a groove-shaped structure with one open end.
  • a slot is provided on the side of the middle portion facing the outlet, and the open end of the outlet is inserted into the slot.
  • a positioning rib is provided on the side of the middle portion facing the inlet, and a positioning groove is provided on the open end of the inlet, and the positioning rib is inserted into the positioning groove.
  • This application embodiment also provides an atomizer, including a housing, a first fluid pump, a second fluid pump, and a liquid storage bottle.
  • the first fluid pump and the second fluid pump are both located inside the housing.
  • the liquid storage bottle is connected to the first fluid pump.
  • the atomizer also includes the atomizing nozzle described in any of the above embodiments.
  • the first fluid pump is connected to the flow channel, and the second fluid pump is connected to the atomizing chamber through the vent hole.
  • the first fluid pump is a peristaltic pump.
  • Figure 1 is a three-dimensional structural diagram of the atomizing nozzle in an embodiment of this application.
  • Figure 2 is a front view of the atomizing nozzle in an embodiment of this application.
  • Figure 3 is a cross-sectional view of Figure 2 along the M-M direction;
  • Figure 4 is an enlarged view of point A in Figure 3;
  • Figure 5 is a diagram showing some of the dimensions and angles marked in Figure 4.
  • Figure 6 is an explosion diagram of the atomizing nozzle in an embodiment of this application.
  • Figure 7 is a schematic diagram of the connection structure between the nozzle body and the middle part in an embodiment of this application.
  • Figure 8 is a cross-sectional view of Figure 6 along the N-N direction
  • Figure 9 is a front view of the nebulizer in an embodiment of this application.
  • Figure 10 is a side view of the nebulizer in an embodiment of this application.
  • Figure 11 is a top view of the nebulizer in an embodiment of this application.
  • Figure 12 is a schematic diagram of the internal structure of the shell in an embodiment of this application.
  • Figure 13 is a schematic diagram of the exploded structure of the charging dock.
  • Atomizing nozzle 11. Nozzle housing; 111. Outlet; 111a. First sealing surface; 112. Middle part; 1121. Sealing plate; 1122. Support sleeve; 1123. Positioning rib; 112a. Slot; 112b. Connecting hole; 113. Inlet; 1131. Insert sleeve; 1132. First connecting pipe; 1133. Second connecting pipe; 113a. Second sealing surface; 113b. Positioning groove; 11a. Atomizing chamber; 11b. Atomizing hole; 11c. Vent hole; 11d. Liquid inlet hole; 12. Nozzle body; 12a. Flow channel; 12b. Flow guide groove; 12c. Guide surface; 10a. Flow guide gap; 20. Shell; 21.
  • connection should be interpreted broadly.
  • they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components.
  • the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, “above,” “over,” and “on top” of the second feature includes the first feature being directly above or diagonally above the second feature, or indicating that the first feature is at a higher horizontal level than the second feature. “Below,” “below,” and “under” the second feature includes the first feature being directly below or diagonally below the second feature, or indicating that the first feature is at a lower horizontal level than the second feature.
  • the terms “upper,” “lower,” “right,” etc. refer to the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.
  • the terms “first” and “second” are only used for distinction in description and have no special meaning.
  • this embodiment proposes an atomizing nozzle capable of using high-pressure gas to disperse a liquid medium into atomized particles.
  • the atomizing nozzle includes a nozzle housing 11 and a nozzle body 12.
  • the nozzle housing 11 is provided with an atomizing chamber 11a, an atomizing hole 11b connecting the atomizing chamber 11a to the outside, and a vent hole 11c connecting the atomizing chamber 11a to a gas source.
  • the first end of the nozzle body 12 is disposed within the atomizing chamber 11a, and a through-hole is disposed within the nozzle body 12.
  • the flow channel 12a has its outlet located at the first end of the nozzle body 12 and directly opposite the atomizing hole 11b.
  • the first end of the nozzle body 12 is provided with multiple guide grooves 12b spaced apart along the circumference.
  • the multiple guide grooves 12b extend to the end face of the first end of the nozzle body 12 and their extension lines converge at point a.
  • the end face of the first end of the nozzle body 12 and the inner surface of the nozzle shell 11 form multiple guide gaps 10a.
  • the extension lines of the multiple guide gaps 10a converge at point b. Points a and b do not coincide.
  • the extended lines of the bottom edges of the plurality of guide channels 12b converge at point a, and the extended lines of the edges of the plurality of guide gaps 10a along the airflow direction converge at point b.
  • the vent 11c is connected to the air source, and the second end of the nozzle body 12 is connected to the medium supply device.
  • the medium supply device can supply the medium to the nozzle body 12.
  • the medium enters the flow channel 12a and flows out from the liquid outlet of the flow channel 12a.
  • the air source injects high-pressure gas into the atomizing chamber 11a through the vent 11c. Under the guiding action of the guide groove 12b and the guide gap 10a, the high-pressure gas forms a first airflow blowing towards point a and a second airflow blowing towards point b, respectively, and atomizes at points a and b respectively.
  • the medium rushes out of the atomizing chamber 11a, it forms a third atomization due to the change in air pressure (there is an air pressure difference between the atomizing chamber 11a and the outside).
  • the medium can also be broken into smaller atomized particles, resulting in a good atomization effect.
  • the number of guide grooves 12b can be adjusted according to the size of the nozzle body 12; for example, four, three, or five can be provided. In this embodiment, four guide grooves 12b are provided.
  • points a and b are both located inside the nozzle housing 11 and on the axis of the atomizing hole 11b, with point a located on the side of point b closer to the nozzle body 12. Therefore, the medium undergoes a first atomization at point a and a second atomization at point b to avoid the first airflow affecting the effect of the second atomization.
  • the guide groove 12b is set as a wedge-shaped guide groove, and its bottom is inclined from the end away from the atomizing hole 11b towards the atomizing hole 11b.
  • the guide gap 10a is also set to be inclined from the end away from the atomizing hole 11b towards the atomizing hole 11b.
  • the end of the atomizing chamber 11a that communicates with the atomizing hole 11b is set as a cone coaxial with the atomizing hole 11b, and the first end face of the nozzle body 12 is provided with an inclined guide surface 12c.
  • the first airflow and the second airflow can also provide power for the medium to rush out of the atomizing hole 11b, which helps the medium to rush out of the atomizing hole 11b.
  • the bottom of the guide groove 12b has a gradually decreasing width from the end away from the atomizing hole 11b to the end closer to the atomizing hole 11b, so as to increase the flow rate of the first airflow and improve the atomization effect.
  • the atomization effect is best when point a is located between the nozzle body 12 and the atomizing hole 11b. In other words, the atomization effect is best when point a is not inside the atomizing hole 11b. In this embodiment, point a is set on the midline of the distance between the nozzle body 12 and the atomizing hole 11b.
  • point a is located at the midpoint of the axis between the first end of the nozzle body 12 and the atomizing hole 11b.
  • L be the minimum distance between the first end of the nozzle body 12 and the atomizing hole 11b
  • ⁇ 1 be the diameter of the atomizing hole 11b
  • H be the length of the atomizing hole 11b
  • ⁇ 2 be the diffusion diameter when the first airflow reaches the outlet end of the atomizing hole 11b
  • ⁇ be the angle between the bottom of the guide groove 12b and the axis of the atomizing hole 11b. 0 ⁇ L ⁇ 1 mm. If L is greater than 1 mm, the medium after secondary atomization will be too far from the atomizing hole 11b and will easily re-condense into large particles.
  • the original value of the diameter ⁇ 1 of the atomizing hole 11b is set to 0.4mm, and the original value of the length H of the atomizing hole 11b is set to 0.35mm.
  • the diameter of the atomizing hole 11b, according to the Venturi principle should also be as small as possible under the premise of the precision that the manufacturing process can achieve.
  • the angle ⁇ between the generatrix of the end of the atomizing chamber 11a that connects to the atomizing hole 11b (i.e., the generatrix of the inner surface of the nozzle housing 11 at the end where the atomizing hole 11b is opened) and the axis is greater than ⁇ .
  • ⁇ is also greater than the angle ⁇ between the guide surface 12c and the axis of the atomizing hole 11b, so that the first airflow and the second airflow have higher flow rates and improve the atomization effect.
  • the flow channel 12a is set as a straight line coaxial with the atomizing hole 11b. Therefore, the vent hole 11c and the nozzle body 12 are necessarily not on the same straight line.
  • the nozzle housing 11 includes an outlet portion 111, an inlet portion 113, and an intermediate portion 112.
  • the outlet portion 111 is configured as a cylindrical structure with a first sealing surface 111a at one end and an open end at the other.
  • the atomizing hole 11b is opened on the first sealing surface 111a, meaning that the inner surface of the first sealing surface 111a is conical.
  • the inlet portion 113 is also configured as a cylindrical structure with an open end facing the outlet portion 111 and a second sealing surface 113a at the other end.
  • the second sealing surface 113a has a liquid inlet hole 11d that connects to the nozzle body 12 or a through hole through which the nozzle body 12 passes.
  • a vent hole 11c is opened on the inlet portion 113.
  • the vent hole 11c can be parallel to the liquid inlet hole 11d or the through hole, or it can be angled to the liquid inlet hole 11d.
  • the intermediate section 112 is disposed between the outlet section 111 and the inlet section 113.
  • the intermediate section 112 includes a sealing plate 1121.
  • the sealing plate 1121 is connected to the outlet section 111 and the inlet section 113 by means of, for example, adhesive or bolt connection. It forms a closed flow guide cavity with the outlet section 111 and a closed ventilation cavity with the inlet section 113.
  • the flow guide cavity is connected to the outside through the atomizing hole 11b, and the ventilation cavity is connected to the air source through the ventilation hole 11c.
  • the flow guide cavity and the ventilation cavity together constitute the atomizing cavity 11a.
  • the nozzle body 12 passes through the sealing plate 1121.
  • the flow guide cavity and the ventilation cavity are connected by a connecting hole 112b that is equidistantly arranged on the sealing plate 1121 around the nozzle body 12.
  • the axial direction of the connecting hole 112b is consistent with the axial direction of the atomizing hole 11b.
  • the nozzle body 12 is integrally formed with the sealing plate 1121.
  • the sealing plate 1121 has a through hole for the nozzle body 12 to pass through.
  • the nozzle body 12 passes through the through hole and is connected to the sealing plate 1121 by a connecting rib arranged around the nozzle body 12.
  • the connecting rib divides the through hole into multiple connecting holes 112b.
  • the high-pressure gas After the high-pressure gas enters the ventilation chamber through the vent hole 11c, it then enters the guide chamber through the connecting hole 112b. Under the guidance of the connecting hole 112b, the amount of high-pressure gas flowing to each guide groove 12b of the nozzle body 12 is approximately the same, which improves the uniformity of atomization of the medium.
  • the sealing plate 1121 is provided with a slot 112a on the side facing the outlet 111.
  • the open end of the outlet 111 can be inserted into the slot 112a to position the sealing plate 1121 and the outlet 111.
  • the sealing plate 1121 is provided with an annular positioning rib 1123 on the side facing the inlet 113.
  • the open end of the inlet 113 is provided with an annular positioning groove 113b.
  • the positioning rib 1123 can be inserted into the positioning groove 113b to position the sealing plate 1121 and the inlet 113. Based on this, the outlet section 111 and the sealing plate 1121, and the sealing plate 1121 and the inlet section 113 are all bonded with sealant, and the sealant is filled in the slot 112a and the positioning groove 113b.
  • the intermediate portion 112 further includes a support sleeve 1122.
  • the support sleeve 1122 is disposed on the side of the sealing plate 1121 facing the outlet portion 111 and is coaxial with the through hole.
  • the support sleeve 1122 is inserted into the outlet portion 111 and abuts against the inner surface of the outlet portion 111 to improve the stability of the connection between the sealing plate 1121 and the outlet portion 111 and ensure the coaxiality of the atomizing hole 11b and the flow channel 12a.
  • the inlet part 113 further includes a plug sleeve 1131.
  • the plug sleeve 1131 is disposed on the surface of the second sealing surface 113a facing the sealing plate 1121 and is coaxial with the liquid inlet hole 11d or the through hole.
  • the second end of the nozzle body 12 is inserted into the plug sleeve 1131.
  • a first connecting pipe 1132 is also provided on the inlet 113.
  • the first connecting pipe 1132 is coaxial with and communicates with the inlet hole 11d, and is used to connect to the media supply device.
  • a second connecting pipe 1133 is also provided on the inlet 113.
  • the second connecting pipe 1133 is coaxial with and communicates with the vent hole 11c, and is used to connect to the air source.
  • the vent hole 11c is located on the second sealing surface 113a and parallel to the inlet hole 11d, so as to facilitate the integration of the air source and the media supply device together.
  • the atomizing nozzle When a peristaltic pump is used as the medium supply device, the atomizing nozzle exhibits intermittent spraying due to the inherent pulsating characteristics of the pump. For example, it sprays for 1 second (s), then pauses for 0.5 seconds before cycling again for 1 second with a 0.5-second pause. Based on this, referring to Figure 4, the radius of the flow channel 12a gradually decreases from the end furthest from the outlet to the end closest to the outlet. Compared to a cylindrical flow channel 12a with the same radius at the end furthest from the outlet, the volume is reduced by 2/3.
  • this embodiment proposes an atomizer, including a housing 20, a first fluid pump 30, a second fluid pump 40, a storage bottle 50, and an atomizing nozzle 10 as in Embodiment 1.
  • the first fluid pump 30, the second fluid pump 40, and the atomizing nozzle 10 are all located inside the housing 20.
  • the housing 20 has an atomizing outlet for the atomizing nozzle 10 to pass through and an insertion port for the storage bottle 50 to be inserted.
  • One end of the storage bottle 50 is inserted into the insertion port and connected to the first fluid pump 30.
  • the first fluid pump 30 and the storage bottle 50 serve as a medium supply device.
  • the first fluid pump 30 connects the storage bottle 50 and the inlet hole 11d of the atomizing nozzle 10, and can pump the medium stored in the storage bottle 50 into the flow channel 12a.
  • the second fluid pump 40 serves as a gas supply device and is connected to the vent hole 11c of the atomizing nozzle 10, and can pump high-pressure gas into the atomizing chamber 11a.
  • the first fluid pump 30 and the second fluid pump 40 start simultaneously.
  • the medium in the storage bottle 50 flows from the storage bottle 50 into the nozzle body 12 under the action of the first fluid pump 30, while the gas forms high pressure under the action of the second fluid pump 40 and enters the atomization chamber 11a, atomizing the medium flowing out of the nozzle body 12 twice to form atomized particles.
  • the first fluid pump 30 is a peristaltic pump, which uses peristalsis to draw the medium from the storage bottle 50.
  • the peristaltic pump can recover the medium within the nozzle body 12 by reversing its rotation, avoiding the problems of nozzle body 12 clogging due to prolonged disuse of the nebulizer and the liquid being carried out by instantaneous pressure changes when the first fluid pump 30 stops, thus preventing the medium from being sprayed out and affecting the user's experience. It also solves the problem of the nebulizer being difficult to clean, resulting in a cleaner product; after use, only the storage bottle 50 needs to be cleaned. Therefore, for convenient cleaning, the storage bottle 50 and the first fluid pump 30 are detachably connected, for example, the storage bottle 50 can be connected to the first fluid pump 30 via a silicone tube.
  • the housing 20 includes a decorative shell 23, a main front shell 21, and a main rear shell 22.
  • the main front shell 21 and the main rear shell 22 are both configured as groove-shaped structures with one end open.
  • the main front shell 21 and the main rear shell 22 together enclose an elliptical cavity.
  • the first fluid pump 30 and the second fluid pump 40 are both fixed in the elliptical cavity.
  • a connecting hole is provided on the main front shell 21.
  • the two ends of the decorative shell 23 are through.
  • the first end of the decorative shell 23 is inserted into the connecting hole and fixed to the main front shell 21 by, for example, snap-fit.
  • the second end of the decorative shell 23 serves as an atomization outlet, and the atomizing nozzle 10 is inserted into the atomization outlet of the decorative shell 23.
  • the atomizer also includes a printed circuit board (PCB) 60, control keys, and a power supply 70.
  • the PCB 60 is electrically connected to the first fluid pump 30, the second fluid pump 40, the control keys, and the power supply 70.
  • the control keys include, for example, an on/off switch and a speed control switch.
  • the on/off switch is used to turn the first fluid pump 30 and the second fluid pump 40 on and off, and the speed control switch is used to adjust the power of the first fluid pump 30 and the second fluid pump 40.
  • the atomizer also includes a charging base 80, which includes an upper base shell 81, a lower base shell 82, and a charging board 83.
  • the charging board 83 is located within the mounting cavity formed by the upper base shell 81 and the lower base shell 82, and can be connected to the PCB 60 via a spring pin 84 to achieve charging.
  • the upper base shell 81 is provided with a receiving groove for the lower end of the housing 20 to be inserted. After the housing 20 is inserted into the receiving groove, the spring pin 84 automatically connects to the power supply 70 to achieve automatic charging.
  • the atomizing nozzle 10 of this application includes a nozzle housing 11 and a nozzle body 12 located within the nozzle housing 11.
  • a guide groove 12b on the nozzle body 12 guides high-pressure gas to converge at point a within the nozzle housing 11, performing a first atomization of the medium.
  • a guide gap 10a is also formed between the nozzle body 12 and the nozzle housing 11, guiding high-pressure gas to converge at point b within the nozzle housing 11 (not coinciding with point a), performing a second atomization of the medium.
  • the medium undergoes a third atomization due to pressure changes. Even when atomizing media with high viscosity, the medium can be dispersed into smaller atomized particles, resulting in good atomization.
  • the atomizer in this application including the atomizing nozzle 10, produces small atomized particles, improving the user experience.

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Abstract

一种雾化喷嘴及雾化仪，该雾化喷嘴包括喷嘴壳(11)和喷嘴主体(12)，喷嘴壳(11)上设置有雾化腔(11a)、连通雾化腔(11a)和外界的雾化孔(11b)以及连通雾化腔(11a)和气源的通气孔(11c)；喷嘴主体(12)的第一端设置于雾化腔(11a)内，喷嘴主体(12)上设置有贯穿喷嘴主体(12)的流道(12a)，流道(12a)的出液口设置于喷嘴主体(12)的第一端且正对雾化孔(11b)，喷嘴主体(12)的第一端沿周向间隔设置有多个导流槽(12b)，多个导流槽(12b)延伸至喷嘴主体(12)的第一端端面且延长线交汇于a点，喷嘴主体(12)的第一端端面配合喷嘴壳(11)的内表面形成多个导流间隙(10a)，多个导流间隙(10a)的延长线交汇于b点；a点和b点不重合。

Description

雾化喷嘴及雾化仪
本申请要求在2024年5月21日提交中国专利局、申请号为202410634630.8的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及雾化仪技术领域，例如涉及一种雾化喷嘴及雾化仪。
背景技术
雾化仪是一种能够将液体雾化喷出，而均匀悬浮于空气中的一种装置，利用雾化仪能够有效增加介质与周围介质或人体的接触面积，可广泛应用于美容领域、医疗领域和除尘领域等多个领域。
目前雾化仪所采用的雾化方式主要有两种：一种是采用超声波雾化片雾化；超声波雾化片雾化只适用于雾化粘度较低的介质，例如水；另一种是采用气力式雾化，气力式雾化能够雾化的介质粘度范围比超声波雾化片雾化的介质粘度范围广，但气力式雾化方式雾化的介质粘度范围也是有限的，且雾化后形成的介质颗粒较大，在将气力式雾化方式应用到美容行业用以雾化护肤品或化妆品例如乳液时，会严重影响消费者的使用体验。
发明内容
本申请提供一种雾化喷嘴及雾化仪，能够雾化的介质粘度范围广，且雾化后形成的介质颗粒小。
本申请实施例提供一种雾化喷嘴，包括喷嘴壳和喷嘴主体，所述喷嘴壳上设置有雾化腔、连通所述雾化腔和外界的雾化孔以及连通所述雾化腔和气源的通气孔；所述喷嘴主体的第一端设置于所述雾化腔内，所述喷嘴主体上设置有贯穿所述喷嘴主体的流道，所述流道的出液口设置于所述喷嘴主体的第一端且正对所述雾化孔，所述喷嘴主体的第一端沿周向间隔设置有多个导流槽，所述多个导流槽延伸至所述喷嘴主体的第一端端面且延长线交汇于a点，所述喷嘴主体的第一端端面配合所述喷嘴壳的内表面形成多个导流间隙，所述多个导流间隙的延长线交汇于b点；a点和b点不重合。
在一些实施例中，a点和b点均位于所述喷嘴壳内且位于所述雾化孔的轴线上，a点位于b点靠近所述喷嘴主体的一侧。
在一些实施例中，所述导流槽的槽底自远离所述雾化孔的一端向靠近所述雾化孔的方向倾斜，所述导流间隙自远离所述雾化孔的一端向靠近所述雾化孔的方向倾斜。
在一些实施例中，所述喷嘴主体的第一端与所述雾化孔的最小距离为L，a点与所述喷嘴主体的第一端距离为L/2。
在一些实施例中，0≤L≤1毫米。
在一些实施例中，所述导流槽的槽底与所述雾化孔的轴线夹角为α，13.2度≤α≤29.5度。
在一些实施例中，所述流道为直线型，所述喷嘴壳包括出口部、进口部和中间部，所述中间部设置于所述出口部和所述进口部之间，所述中间部配合所述出口部围合形成封闭的导流腔，所述中间部配合所述进口部形成封闭的通气腔，所述雾化孔开设在所述出口部，所述导流腔和所述通气腔共同形成所述雾化腔，所述喷嘴主体穿设于所述中间部，所述中间部上开设有环绕所述喷嘴主体且等距设置的多个连通孔。
在一些实施例中，所述流道自远离所述出液口的一端向靠近所述出液口的一端半径逐渐减小。
在一些实施例中，所述出口部和所述进口部均设置为一端敞口的槽状结构，所述中间部面向所述出口部的一面设置有插槽，所述出口部的敞口端插入所述插槽内，所述中间部面向所述进口部的一面设置有定位筋条，所述进口部的敞口端设置有定位槽，所述定位筋条插入所述定位槽内。
本申请实施例还提供一种雾化仪，包括壳体、第一流体泵、第二流体泵和储液瓶，所述第一流体泵和所述第二流体泵均位于所述壳体内，所述储液瓶与所述第一流体泵连接，该雾化仪还包括上述任一实施方式所述的雾化喷嘴，所述第一流体泵连通所述流道，所述第二流体泵通过所述通气孔连通所述雾化腔。
在一些实施例中，所述第一流体泵为蠕动泵。
附图说明
图1是本申请实施例中雾化喷嘴的立体结构示意图；
图2是本申请实施例中雾化喷嘴的正视图；
图3是图2沿M-M向的剖视图；
图4是图3中A处的放大示意图；
图5是图4中一些尺寸和角度的标记图；
图6是本申请实施例中雾化喷嘴的爆炸示意图；
图7是本申请实施例中喷嘴主体与中间部的连接结构示意图；
图8是图6沿N-N向的剖视图；
图9是本申请实施例中雾化仪的正视图；
图10是本申请实施例中雾化仪的侧视图；
图11是本申请实施例中雾化仪的俯视图；
图12是本申请实施例中壳体内部结构示意图；
图13是充电座的爆炸结构示意图。
图中：
10、雾化喷嘴；11、喷嘴壳；111、出口部；111a、第一封闭面；112、中
间部；1121、封板；1122、支撑套筒；1123、定位筋条；112a、插槽；112b、连通孔；113、进口部；1131、插接套筒；1132、第一连接管；1133、第二连接管；113a、第二封闭面；113b、定位槽；11a、雾化腔；11b、雾化孔；11c、通气孔；11d、进液孔；12、喷嘴主体；12a、流道；12b、导流槽；12c、导向面；10a、导流间隙；
20、壳体；21、主体前壳；22、主体后壳；23、装饰壳；
30、第一流体泵；
40、第二流体泵；
50、储液瓶；
60、印刷电路板；
70、电源；
80、充电座；81、底座上壳；82、底座下壳；83、充电基板；84、弹针。
具体实施方式
下面结合附图和实施例对本申请作说明。此处所描述的实施例用于解释本申请。为了便于描述，附图中仅示出了与本申请相关的部分结构。
在本申请的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以视情况理解上述术语在本申请中的含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一特征和第二特征直接接触，也可以包括第一特征和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或表示第一特征水平高度小于第二特征。
在本实施例的描述中，术语“上”、“下”、“右”、等方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述和简化操作，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作。此外，术语“第一”、“第二”仅用于在描述上加以区分，并没有特殊的含义。
实施例一：
参考图1-图8所示，本实施例提出一种雾化喷嘴，能够利用高压气体将液体介质打散形成雾化颗粒，该雾化喷嘴包括喷嘴壳11和喷嘴主体12，其中喷嘴壳11设置有雾化腔11a、连通雾化腔11a和外界的雾化孔11b以及连通雾化腔11a和气源的通气孔11c，喷嘴主体12的第一端设置于雾化腔11a内，喷嘴主体12内设置有贯穿喷嘴主体12的流道12a，流道12a的出液口位于喷嘴主体12的第一端且正对雾化孔11b，喷嘴主体12的第一端沿周向间隔开设有多个导流槽12b，多个导流槽12b延伸至喷嘴主体12的第一端端面且延长线交汇于a点，同时喷嘴主体12的第一端端面配合喷嘴壳11的内表面形成多个导流间隙10a，多个导流间隙10a的延长线交汇于b点，a点和b点不重合。
在一些实施例中，多个导流槽12b的槽底边缘延长线交汇于a点，多个导流间隙10a沿气流流动方向的边缘延长线交汇于b点。
利用上述雾化喷嘴雾化介质时，将通气孔11c与气源连通，喷嘴主体12的第二端与介质供应装置连通，介质供应装置能够向喷嘴主体12供应介质，介质进入流道12a内并从流道12a的出液口流出，气源通过通气孔11c向雾化腔11a注入高压气体，高压气体在导流槽12b和导流间隙10a的导流作用下分别形成吹向a点的第一气流和吹向b点的第二气流，并在a点和b点分别进行雾化，而且介质在冲出雾化腔11a后因为气压的变化(雾化腔11a内和外界存在气压差)形成第三次雾化，在雾化粘度较大的介质时也能将介质打散成颗粒较小的雾化颗粒，雾化效果好。
导流槽12b的数量可以根据喷嘴主体12的尺寸进行适应性调整，例如可以设置4个，也可以设置3个或5个。本实施例中，导流槽12b设置4个。
本实施例中，a点和b点均位于喷嘴壳11内且位于雾化孔11b的轴线上，a点位于b点靠近喷嘴主体12的一侧。则介质先在a点进行第一次雾化，再在b点进行第二次雾化，以避免第一气流影响第二次雾化的效果。
由文丘里原理可知，截面积变化越大，气体、液体的流速越快，所以雾化孔11b的直径越小，第三次雾化效果越好，而第一气流交汇于a点之后，又会各自分散，分散过程中，被第一气流裹挟的介质一旦被喷嘴壳11的内表面挡住，会产生反作用力降低雾化效果。基于此，参考图4-图5所示，为了限制雾化孔11b的直径大小，导流槽12b设置为楔形导流槽，其槽底自远离雾化孔11b的一端向靠近雾化孔11b的方向倾斜。在一些实施例中，导流间隙10a也设置为自远离雾化孔11b的一端向雾化孔11b方向倾斜。示例性地，雾化腔11a与雾化孔11b连通的一端设置为与雾化孔11b同轴的锥形，而喷嘴主体12的第一端端面设置有倾斜的导向面12c。此时，第一气流和第二气流还能够为介质冲出雾化孔11b提供动力，有助于介质冲出雾化孔11b。
在一些实施例中，导流槽12b的槽底呈现的是自远离雾化孔11b的一端向靠近雾化孔11b的一端宽度逐渐减小的状态，以增加第一气流的流速，提高雾化效果。
经实验可得，在其他条件相同的情况下，a点位于喷嘴主体12与雾化孔11b之间时雾化效果最好，也就是说a点不在雾化孔11b内时雾化效果最好，本实施例中，a点设置在喷嘴主体12与雾化孔11b之间距离的中线上。
在一些实施例中，a点位于喷嘴主体12第一端与雾化孔11b之间的轴线中点处。
参考图5所示，设喷嘴主体12的第一端与雾化孔11b的最小距离为L，雾化孔11b的直径为φ1，雾化孔11b的长度为H，第一气流流动至雾化孔11b的出口端时扩散直径为φ2，导流槽12b的槽底与雾化孔11b的轴线夹角为α。0≤L≤1毫米(mm)，若L大于1mm，二次雾化后的介质离雾化孔11b太远，容易重新凝聚形成大颗粒。雾化孔11b的直径φ1原始值定为0.4mm，雾化孔11b的长度H原始值定为0.35mm，雾化孔11b的长度越长，雾化后的介质更容易在雾化孔11b内聚集，因此雾化孔11b的长度应在制作工艺所能达到的精度前提下越短越好，同样雾化孔11b的直径因文丘里原理也是在制作工艺所能达到的精度前提下越小越好。
当φ2≤φ1时，第一气流完全不会与喷嘴壳11产生碰撞，雾化效果最好。
而由
可得：
当L取极限值0时，α＝29.5°，因此α≤29.5°时，第一气流不与喷嘴壳11产生碰撞；当L取极限值1mm时，α＝13.2°，因此α≤13.2°时，第一气流不与喷嘴壳11产生碰撞。显然α的值越大，介质喷出雾化孔11b后所覆盖的范围越广，因此，L在0≤L≤1mm的范围内选值时，α在13.2°≤α≤29.5°的范围内反向选值即可。例如，L＝1mm时，α＝13.2°，此时第一气流不与喷嘴壳11产生碰撞且介质喷出雾化孔11b后所覆盖的范围最广。
本实施例中，雾化腔11a与雾化孔11b连通的一端母线(即喷嘴壳11开设雾化孔11b的一端内表面的母线)与轴线的夹角β大于α，同时β还大于导向面12c与雾化孔11b的轴线的夹角γ，以使第一气流和第二气流具有更高的流速，提高雾化效果。
为了减少介质在流道12a内的动能损耗，流道12a设置为与雾化孔11b同轴的直线型，则通气孔11c与喷嘴主体12必然不在同一条直线上。为了保持雾化的均匀性，参考图3、图6和图8所示，喷嘴壳11包括出口部111、进口部113和中间部112，其中出口部111设置为筒状结构，且轴向一端设置有第一封闭面111a，另一端敞口，雾化孔11b开设在第一封闭面111a上，也就是说第一封闭面111a的内表面设置为锥形，进口部113也设置为筒状结构，其面向出口部111的一端敞口，另一端设置有第二封闭面113a，第二封闭面113a上开设有连通喷嘴主体12的进液孔11d或供喷嘴主体12穿出的通过孔，通气孔11c开设在进口部113，通气孔11c既可以与进液孔11d或通过孔平行设置，也可以与进液孔11d呈夹角设置。中间部112设置于出口部111和进口部113之间，中间部112包括封板1121，封板1121采用例如粘接、螺栓连接的方式与出口部111和进口部113连接，并配合出口部111形成封闭的导流腔、配合进口部113形成封闭的通气腔，导流腔通过雾化孔11b连通外界，通气腔通过通气孔11c连通气源，导流腔和通气腔共同构成雾化腔11a，喷嘴主体12穿设于封板1121上，导流腔和通气腔之间通过环绕喷嘴主体12等距设置在封板1121上的连通孔112b连通，连通孔112b的轴向与雾化孔11b的轴向一致。示例性地，喷嘴主体12与封板1121一体成型，封板1121上开设有供喷嘴主体12穿过的通过孔，喷嘴主体12穿过通过孔并通过环绕喷嘴主体12设置的连接筋条与封板1121连接，连接筋条将通过孔分割为多个连通孔112b。
高压气体自通气孔11c进入通气腔后，再经连通孔112b进入导流腔内，在连通孔112b的导向作用下，流向喷嘴主体12各导流槽12b的高压气体量大致相同，提高了对介质雾化的均匀性。
为了降低出口部111和封板1121、封板1121和进口部113连接时的装配难度，使雾化孔11b和喷嘴主体12的出液口、喷嘴主体12的进液口与进液孔11d或通过孔自动对齐，封板1121面向出口部111的一面设置有插槽112a，出口部111的敞口端能够插入插槽112a内实现封板1121与出口部111的定位，封板1121面向进口部113的一面设置有环形的定位筋条1123，对应地，进口部113的敞口端设置有环形的定位槽113b，定位筋条1123能够插入定位槽113b内实现封板1121和进口部113的定位。在此基础上，出口部111和封板1121、封板1121和进口部113均采用密封胶粘接，密封胶填充于插槽112a和定位槽113b内。
在一些实施例中，中间部112还包括支撑套筒1122，支撑套筒1122设置于封板1121面向出口部111的一面且与通过孔同轴，支撑套筒1122插入出口部111内并与出口部111的内表面抵接，以提高封板1121和出口部111连接的稳定性，保证雾化孔11b与流道12a的同轴度。
可选地，为了保证流道12a与进液孔11d或通过孔的同轴度，进口部113还包括插接套筒1131，插接套筒1131设置于第二封闭面113a面向封板1121的面上且与进液孔11d或通过孔同轴，喷嘴主体12的第二端插入插接套筒1131内。
以第二封闭面113a上设置的是进液孔11d为例，整个喷嘴主体12均位于雾化腔11a内，为了降低喷嘴主体12与介质供应装置连接的难度，进口部113上还设置有第一连接管1132，第一连接管1132与进液孔11d同轴且连通，用于与介质供应装置连接，同时，进口部113上还设置有第二连接管1133，第二连接管1133与通气孔11c同轴且连通，用于与气源连接。本实施例中，通气孔11c设置在第二封闭面113a上且与进液孔11d平行，以方便将气源和介质供应装置集成在一起。
当介质供应装置采用蠕动泵时，由于蠕动泵本身具有的脉冲特性，使得雾化喷嘴表现出间歇喷射的现象，例如喷1秒(s)，间隙0.5s后再次循环喷1s、间隙0.5s。基于此，参考图4所示，流道12a自远离出液口的一端向靠近出液口的一端半径逐渐减小，相较于与流道12a远离出液口的一端半径相同的圆柱形流道12a而言，体积减小了2/3，在注入相同体积的液体时形成的液柱长度更长，缩短了雾化的间隙时间，例如由原来的喷1s间隙0.5s改善到喷1s间歇0.2s。
实施例二：
参考图9-图13所示，本实施例提出一种雾化仪，包括壳体20、第一流体泵30、第二流体泵40、储液瓶50以及实施例一中的雾化喷嘴10，第一流体泵30、第二流体泵40和雾化喷嘴10均位于壳体20内，壳体20上开设有供雾化喷嘴10穿出的雾化出口以及供储液瓶50插入的插口，储液瓶50一端插入插口内与第一流体泵30连接，第一流体泵30和储液瓶50作为介质供应装置，第一流体泵30连通储液瓶50和雾化喷嘴10的进液孔11d，能够将储液瓶50内存储的介质泵送至流道12a内，第二流体泵40作为气源供应装置，与雾化喷嘴10的通气孔11c连接，能够将高压气体泵送至雾化腔11a内。
雾化仪使用时，第一流体泵30和第二流体泵40同时启动，此时储液瓶50中的介质在第一流体泵30作用下从储液瓶50流入喷嘴主体12内，而气体在第二流体泵40作用下形成高压并进入雾化腔11a内，对流出喷嘴主体12的介质进行两次雾化，形成雾化颗粒。
可选地，第一流体泵30为蠕动泵，通过蠕动来引流储液瓶50中的介质。蠕动泵能够通过反转回收喷嘴主体12内的介质，避免雾化仪长时间不使用导致的喷嘴主体12堵塞和第一流体泵30停止时液体会被瞬间的气压变化带出导致介质喷出影响客户使用效果的问题，而且还解决了雾化仪无法清洁的问题，更为干净，使用完毕后仅需清洗储液瓶50即可。因此，为了方便后期的清洗，储液瓶50与第一流体泵30可拆卸连接，例如储液瓶50通过硅胶管与第一流体泵30连接。
参考图10所示，壳体20包括装饰壳23、主体前壳21和主体后壳22，其中主体前壳21和主体后壳22均设置为一端开口的槽状结构，主体前壳21和主体后壳22共同围合形成椭圆形空腔，第一流体泵30和第二流体泵40均固定于椭圆形空腔内，主体前壳21上开设有连接孔，装饰壳23的两端贯通，装饰壳23的第一端插入连接孔内并采用例如卡接的方式与主体前壳21固接，装饰壳23的第二端作为雾化出口，雾化喷嘴10穿入装饰壳23的雾化出口内。
本实施例中，雾化仪还包括印刷电路板(Printed Circuit Board，PCB)60、控制键以及电源70，PCB 60与第一流体泵30、第二流体泵40、控制键和电源70均电连接，控制键例如包括开关键和档位键，开关键设置为启闭第一流体泵30和第二流体泵40，档位键设置为调节第一流体泵30和第二流体泵40的功率。
可选地，雾化仪还包括充电座80，充电座80包括底座上壳81、底座下壳82以及充电基板83，充电基板83位于底座上壳81和底座下壳82围合形成的安装腔内，且能通过弹针84与PCB 60连接，从而实现充电。为了保持雾化仪充电时的稳定性，底座上壳81上设置有容置槽，供壳体20的下端插入。壳体20插入容置槽后，弹针84自动与电源70连接，实现自动充电。
在一些实施例中，本申请中的雾化喷嘴10包括喷嘴壳11和位于喷嘴壳11内的喷嘴主体12，喷嘴主体12上设置的导流槽12b能够引导高压气体在喷嘴壳11内的a点交汇，对介质进行第一次雾化，喷嘴主体12与喷嘴壳11之间还能形成导流间隙10a，导流间隙10a能够引导高压气体在喷嘴壳11内不重合于a点的b点交汇，对介质进行第二次雾化，而且介质在冲出雾化腔11a后因为气压的变化形成第三次雾化，在雾化粘度较大的介质时也能将介质打散成颗粒较小的雾化颗粒，雾化效果好。本申请中的包括该雾化喷嘴10的雾化仪形成的雾化颗粒小，能够提高使用者的使用体验。

Claims (11)

  1. 一种雾化喷嘴，包括：
    喷嘴壳(11)，所述喷嘴壳(11)上设置有雾化腔(11a)、连通所述雾化腔(11a)和外界的雾化孔(11b)以及连通所述雾化腔(11a)和气源的通气孔(11c)；
    喷嘴主体(12)，所述喷嘴主体(12)的第一端设置于所述雾化腔(11a)内，所述喷嘴主体(12)上设置有贯穿所述喷嘴主体(12)的流道(12a)，所述流道(12a)的出液口设置于所述喷嘴主体(12)的第一端且正对所述雾化孔(11b)，所述喷嘴主体(12)的第一端沿周向间隔设置有多个导流槽(12b)，所述多个导流槽(12b)延伸至所述喷嘴主体(12)的第一端端面且延长线交汇于a点，所述喷嘴主体(12)的第一端端面配合所述喷嘴壳(11)的内表面形成多个导流间隙(10a)，所述多个导流间隙(10a)的延长线交汇于b点；a点和b点不重合。
  2. 根据权利要求1所述的雾化喷嘴，其中，a点和b点均位于所述喷嘴壳(11)内且位于所述雾化孔(11b)的轴线上，a点位于b点靠近所述喷嘴主体(12)的一侧。
  3. 根据权利要求2所述的雾化喷嘴，其中，所述导流槽(12b)的槽底自远离所述雾化孔(11b)的一端向靠近所述雾化孔(11b)的方向倾斜，所述导流间隙(10a)自远离所述雾化孔(11b)的一端向靠近所述雾化孔(11b)的方向倾斜。
  4. 根据权利要求3所述的雾化喷嘴，其中，所述喷嘴主体(12)的第一端与所述雾化孔(11b)的最小距离为L，a点与所述喷嘴主体(12)的第一端距离为L/2。
  5. 根据权利要求4所述的雾化喷嘴，其中，0≤L≤1毫米。
  6. 根据权利要求5所述的雾化喷嘴，其中，所述导流槽(12b)的槽底与所述雾化孔(11b)的轴线夹角为α，13.2度≤α≤29.5度。
  7. 根据权利要求1所述的雾化喷嘴，其中，所述流道(12a)为直线型，所述喷嘴壳(11)包括出口部(111)、进口部(113)和中间部(112)，所述中间部(112)设置于所述出口部(111)和所述进口部(113)之间，所述中间部(112)配合所述出口部(111)围合形成封闭的导流腔，所述中间部(112)配合所述进口部(113)形成封闭的通气腔，所述雾化孔(11b)开设在所述出口部(111)，所述导流腔和所述通气腔共同形成所述雾化腔(11a)，所述喷嘴主体(12)穿设于所述中间部(112)，所述中间部(112)上开设有环绕所述喷嘴主体(12)且等距设置的多个连通孔(112b)。
  8. 根据权利要求7所述的雾化喷嘴，其中，所述流道(12a)自远离所述出液口的一端向靠近所述出液口的一端半径逐渐减小。
  9. 根据权利要求7所述的雾化喷嘴，其中，所述出口部(111)和所述进口部(113)均设置为一端敞口的槽状结构，所述中间部(112)面向所述出口部(111)的一面设置有插槽(112a)，所述出口部(111)的敞口端插入所述插槽(112a)内，所述中间部(112)面向所述进口部(113)的一面设置有定位筋条(1123)，所述进口部(113)的敞口端设置有定位槽(113b)，所述定位筋条(1123)插入所述定位槽(113b)内。
  10. 一种雾化仪，包括壳体(20)、第一流体泵(30)、第二流体泵(40)和储液瓶(50)，所述第一流体泵(30)和所述第二流体泵(40)均位于所述壳体(20)内，所述储液瓶(50)与所述第一流体泵(30)连接，所述雾化仪还包括如权利要求1-9中任一所述的雾化喷嘴(10)，所述第一流体泵(30)连通所述流道(12a)，所述第二流体泵(40)通过所述通气孔(11c)连通所述雾化腔(11a)。
  11. 根据权利要求10所述的雾化仪，其中，所述第一流体泵(30)为蠕动泵。
PCT/CN2025/093887 2024-05-21 2025-05-09 雾化喷嘴及雾化仪 Pending WO2025241908A1 (zh)

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