Atomization nozzle and atomization device

Abstract

An atomization nozzle and an atomization device. The atomization nozzle comprises a nozzle shell (11) and a nozzle body (12), the nozzle shell (11) being provided with an atomization cavity (11a), an atomization hole (11b) communicating the atomization cavity (11a) and the outside, and a gas through hole (11c) communicating the atomization cavity (11a) and a gas source. A first end of the nozzle body (12) is provided in the atomization cavity (11a), and the nozzle body (12) is provided with a flow channel (12a) passing through the nozzle body (12), a liquid outlet of the flow channel (12a) being provided at the first end of the nozzle body (12) and directly facing the atomization hole (11b). The first end of the nozzle body (12) is provided with a plurality of spaced flow guide channels (12b) in the circumferential direction, the plurality of flow guide channels (12b) extending to the end face of the first end of the nozzle body (12) with the extension lines thereof intersecting at point a. The end face of the first end of the nozzle body (12) matches with the inner surface of the nozzle shell (11) to form a plurality of flow guide gaps (10a), extension lines of the plurality of flow guide gaps (10a) intersecting at point b. The point a and the point b do not coincide.

Description

Atomizing nozzle and atomizing instrument

[0001] The present application claims priority to the Chinese patent application No. 202410634630.8, filed on May 21, 2024, to the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of atomizing instruments, for example, to an atomizing nozzle and an atomizing instrument. BACKGROUND

[0003] An atomizing instrument is a device capable of atomizing and spraying liquid and uniformly suspending it in the air. The use of an atomizing instrument can effectively increase the contact area of a medium with the surrounding medium or the human body, and can be widely applied in many fields such as the beauty field, the medical field, and the dust removal field.

[0004] Currently, there are mainly two atomizing methods used in atomizing instruments: one is ultrasonic atomizing sheet atomization, which is only suitable for atomizing media with low viscosity, such as water; the other is pneumatic atomization, which can atomize a wider range of media than ultrasonic atomizing sheet atomization. However, the range of media viscosity that can be atomized by pneumatic atomization is also limited, and the particles of the atomized medium are relatively large. When the pneumatic atomization method is applied to the beauty industry to atomize skin care products or cosmetics such as emulsions, it will seriously affect the user experience of consumers. SUMMARY

[0005] The present application provides an atomizing nozzle and an atomizing instrument, which can atomize a wide range of media and form small particles of the atomized medium.

[0006] The present application provides an atomizing nozzle, which comprises a nozzle shell and a nozzle body. The nozzle shell is provided with an atomizing cavity, an atomizing hole communicating with the atomizing cavity and the outside, and a ventilation hole communicating with the atomizing cavity and a gas source. The first end of the nozzle body is arranged in the atomizing cavity. The nozzle body is provided with a flow channel penetrating through the nozzle body. The liquid outlet of the flow channel is arranged at the first end of the nozzle body and faces the atomizing hole. The first end of the nozzle body is circumferentially spaced apart and provided with a plurality of flow guide grooves. The plurality of flow guide grooves extend to the first end face of the nozzle body and the extension lines thereof intersect at point a. The first end face 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 a and b do not coincide.

[0007] In some embodiments, points a and b are both located in the nozzle shell and on the axis of the atomizing hole. Point a is located on the side of point b close to the nozzle body.

[0008] In some embodiments, the bottom of the flow guide groove is inclined from the end far from the atomizing hole to the end close to the atomizing hole, and the flow guide gap is inclined from the end far from the atomizing hole to the end close to the atomizing hole.

[0009] In some embodiments, the minimum distance between the first end of the nozzle body and the atomizing hole is L, and the distance between the point a and the first end of the nozzle body is L / 2.

[0010] In some embodiments, 0≤L≤1 millimeter.

[0011] In some embodiments, the angle between the bottom of the flow guide groove and the axis of the atomizing hole is α, and 13.2 degrees≤α≤29.5 degrees.

[0012] In some embodiments, the flow channel is linear, the nozzle shell includes an outlet portion, an inlet portion, and an intermediate portion, the intermediate portion is arranged between the outlet portion and the inlet portion, the intermediate portion cooperates with the outlet portion to form a closed flow guide cavity, the intermediate portion cooperates with the inlet portion to form a closed ventilation cavity, the atomizing hole is arranged in the outlet portion, the flow guide cavity and the ventilation cavity jointly form the atomizing cavity, the nozzle body is arranged in the intermediate portion, and a plurality of communication holes are arranged around the nozzle body and equidistantly on the intermediate portion.

[0013] In some embodiments, the radius of the flow channel gradually decreases from the end far from the liquid outlet to the end close to the liquid outlet.

[0014] In some embodiments, the outlet portion and the inlet portion are both arranged as a groove structure with one end open, one side of the intermediate portion facing the outlet portion is provided with a slot, the open end of the outlet portion is inserted into the slot, one side of the intermediate portion facing the inlet portion is provided with a positioning rib, and the open end of the inlet portion is provided with a positioning slot, and the positioning rib is inserted into the positioning slot.

[0015] The embodiments of the present application also provide an atomization instrument, which comprises a shell, a first fluid pump, a second fluid pump, and a liquid storage bottle, the first fluid pump and the second fluid pump are both arranged in the shell, the liquid storage bottle is connected with the first fluid pump, the atomization instrument further comprises the atomization nozzle according to any one of the above embodiments, the first fluid pump is communicated with the flow channel, and the second fluid pump is communicated with the atomizing cavity through the ventilation hole.

[0016] In some embodiments, the first fluid pump is a peristaltic pump. BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1 is a schematic diagram of the three-dimensional structure of the atomization nozzle according to the embodiments of the present application;

[0018] Figure 2 is a front view of the atomizing nozzle in an embodiment of this application;

[0019] Figure 3 is a cross-sectional view of Figure 2 along the MM direction;

[0020] Figure 4 is an enlarged view of point A in Figure 3;

[0021] Figure 5 is a diagram showing some of the dimensions and angles marked in Figure 4;

[0022] Figure 6 is an explosion diagram of the atomizing nozzle in an embodiment of this application;

[0023] Figure 7 is a schematic diagram of the connection structure between the nozzle body and the middle part in an embodiment of this application;

[0024] Figure 8 is a cross-sectional view of Figure 6 along the NN direction;

[0025] Figure 9 is a front view of the nebulizer in an embodiment of this application;

[0026] Figure 10 is a side view of the nebulizer in an embodiment of this application;

[0027] Figure 11 is a top view of the nebulizer in an embodiment of this application;

[0028] Figure 12 is a schematic diagram of the internal structure of the shell in an embodiment of this application;

[0029] Figure 13 is a schematic diagram of the exploded structure of the charging dock.

[0030] In the diagram: 10. Atomizing nozzle; 11. Nozzle housing; 111. Outlet; 111a. First sealing surface; 112. Middle section; 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. Guide groove; 12c. Guide surface; 10a. Guide gap; 20. Housing; 21. Front housing of the main body; 22. Rear housing of the main body; 23. Decorative housing; 30. First fluid pump; 40. Second fluid pump; 50. Liquid storage bottle; 60. Printed circuit board; 70. Power supply; 80. Charging base; 81. Base upper shell; 82. Base lower shell; 83. Charging board; 84. Spring pin. Detailed Implementation

[0031] The present application will now be described in conjunction with the accompanying drawings and embodiments. The embodiments described herein are for the purpose of explaining the present application. For ease of description, only the parts of the structure relevant to the present application are shown in the drawings.

[0032] In the description of the present application, unless specifically defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the meaning of the above terms in the present application can be understood as appropriate.

[0033] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first feature and the second feature are in direct contact, or that the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the present embodiment, the terms "up", "down", "right", and other orientation or position relationship are based on the orientation or position relationship shown in the 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 particular orientation, be constructed and operated in a particular orientation. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0035] Embodiment one:

[0036] Referring to FIGS. 1-8, the present embodiment provides an atomizing nozzle capable of dispersing liquid medium into atomized particles by high-pressure gas, which comprises a nozzle shell 11 and a nozzle body 12, wherein the nozzle shell 11 is provided with an atomizing cavity 11a, an atomizing hole 11b communicating with the atomizing cavity 11a and the outside, and a gas passage 11c communicating with the atomizing cavity 11a and a gas source, the first end of the nozzle body 12 is arranged in the atomizing cavity 11a, a flow channel 12a penetrating through the nozzle body 12 is arranged in the nozzle body 12, the liquid outlet of the flow channel 12a is located at the first end of the nozzle body 12 and faces the atomizing hole 11b, a plurality of flow guide grooves 12b are arranged at the first end of the nozzle body 12 in a circumferential direction, the plurality of flow guide grooves 12b extend to the first end face of the nozzle body 12 and the extension lines thereof meet at point a, at the same time, the first end face of the nozzle body 12 cooperates with the inner surface of the nozzle shell 11 to form a plurality of flow guide gaps 10a, the extension lines of the plurality of flow guide gaps 10a meet at point b, and points a and b do not coincide.

[0037] In some embodiments, the extended edges of the groove bottoms of the plurality of flow guide grooves 12b intersect at point a, and the extended edges of the plurality of flow guide gaps 10a intersect at point b along the direction of airflow.

[0038] When the above-mentioned atomizing nozzle atomizes the medium, the air passage 11c is connected to an air source, the second end of the nozzle body 12 is connected to a medium supply device, the medium supply device is capable of supplying 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 cavity 11a through the air passage 11c, the high-pressure gas forms a first airflow blowing towards point a and a second airflow blowing towards point b under the guidance of the flow guide grooves 12b and the flow guide gaps 10a, respectively, and is atomized at points a and b, respectively, and the medium is subjected to a third atomization due to the change in air pressure after being ejected from the atomizing cavity 11a (there is a pressure difference between the inside and outside of the atomizing cavity 11a), and even when the medium has a high viscosity, the medium can be dispersed into smaller atomized particles, and the atomization effect is good.

[0039] The number of flow guide grooves 12b can be adjusted adaptively according to the size of the nozzle body 12, for example, four flow guide grooves 12b can be provided, or three or five flow guide grooves 12b can be provided. In the present embodiment, four flow guide grooves 12b are provided.

[0040] In the present embodiment, points a and b are located in the nozzle shell 11 and on the axis of the atomizing hole 11b, and point a is located on the side of point b close to the nozzle body 12. Then the medium is first subjected to a first atomization at point a, and then subjected to a second atomization at point b, so as to avoid the influence of the first airflow on the effect of the second atomization.

[0041] According to the Venturi principle, the greater the change in cross-sectional area, the faster the flow rate of gas and liquid, so the smaller the diameter of the atomizing hole 11b, the better the effect of the third atomization, and after the first airflow converges at point a, it will be dispersed again, and during the dispersion process, once the medium wrapped by the first airflow is blocked by the inner surface of the nozzle shell 11, a reaction force will be generated to reduce the atomization effect. Based on this, as shown in FIGS. 4-5, in order to limit the size of the diameter of the atomizing hole 11b, the flow guide grooves 12b are provided as wedge-shaped flow guide grooves, and the groove bottoms thereof are inclined from the end away from the atomizing hole 11b towards the atomizing hole 11b. In some embodiments, the flow guide gaps 10a are also provided as wedge-shaped flow guide gaps inclined from the end away from the atomizing hole 11b towards the atomizing hole 11b. For example, the end of the atomizing cavity 11a connected to the atomizing hole 11b is provided as a conical shape coaxial with the atomizing hole 11b, and the first end face of the nozzle body 12 is provided with an inclined guide surface 12c. At this time, the first airflow and the second airflow can also provide power for the medium to be ejected from the atomizing hole 11b, which helps the medium to be ejected from the atomizing hole 11b.

[0042] In some embodiments, the groove bottom of the flow guide groove 12b is gradually reduced in width from the end away from the atomizing hole 11b to the end close to the atomizing hole 11b, so as to increase the flow rate of the first airflow and improve the atomization effect.

[0043] Experiments show that, under the same conditions, the atomization effect is best when the point a is located between the nozzle body 12 and the atomizing hole 11b, that is, the atomization effect is best when the point a is not in the atomizing hole 11b. In this embodiment, the point a is arranged on the middle line of the distance between the nozzle body 12 and the atomizing hole 11b.

[0044] In some embodiments, the point a is located at the midpoint of the axis between the first end of the nozzle body 12 and the atomizing hole 11b.

[0045] Referring to FIG. 5, it is assumed that the minimum distance between the first end of the nozzle body 12 and the atomizing hole 11b is L, the diameter of the atomizing hole 11b is φ1, the length of the atomizing hole 11b is H, the diffusion diameter of the first airflow flowing to the outlet end of the atomizing hole 11b is φ2, and the angle between the groove bottom of the flow guide groove 12b and the axis of the atomizing hole 11b is α. 0≤L≤1 millimeter (mm), if L is greater than 1 mm, the medium after secondary atomization is too far away from the atomizing hole 11b, and is easy to re-agglomerate to form large particles. The original value of the diameter φ1 of the atomizing hole 11b is 0.4 mm, and the original value of the length H of the atomizing hole 11b is 0.35 mm. The longer the length of the atomizing hole 11b, the more likely the atomized medium is to agglomerate in the atomizing hole 11b. Therefore, the length of the atomizing hole 11b should be as short as possible under the premise of the accuracy that can be achieved by the manufacturing process. Similarly, the diameter of the atomizing hole 11b should be as small as possible under the premise of the accuracy that can be achieved by the manufacturing process due to the Venturi principle.

[0046] When φ2≤φ1, the first airflow does not collide with the nozzle shell 11 at all, and the atomization effect is best.

[0047] And

[0048] It can be obtained that:

[0049] When L takes the limit value 0, α=29.5°, so when α≤29.5°, the first airflow does not collide with the nozzle shell 11; when L takes the limit value 1 mm, α=13.2°, so when α≤13.2°, the first airflow does not collide with the nozzle shell 11. Obviously, the larger the value of α, the wider the range covered by the medium after being sprayed out of the atomizing hole 11b. Therefore, when L is selected within the range of 0≤L≤1 mm, α can be inversely selected within the range of 13.2°≤α≤29.5°. For example, when L=1 mm, α=13.2°, at this time the first airflow does not collide with the nozzle shell 11 and the range covered by the medium after being sprayed out of the atomizing hole 11b is the widest.

[0050] In this embodiment, the angle β between the generatrix of the end of the atomizing cavity 11a communicating with the atomizing hole 11b (i.e. the generatrix of the inner surface of the end of the nozzle shell 11 where the atomizing hole 11b is formed) and the axis is greater than α, and β is also greater than the angle γ between the guide surface 12c and the axis of the atomizing hole 11b, so that the first gas flow and the second gas flow have a higher flow rate, and the atomization effect is improved.

[0051] In order to reduce the kinetic energy loss of the medium in the flow channel 12a, the flow channel 12a is arranged in a straight line coaxial with the atomizing hole 11b, so the air passage 11c and the nozzle body 12 are necessarily not in the same straight line. In order to maintain the uniformity of atomization, as shown in FIGS. 3, 6 and 8, the nozzle shell 11 comprises an outlet portion 111, an inlet portion 113 and an intermediate portion 112, wherein the outlet portion 111 is arranged in a cylindrical structure, and an axial end is provided with a first closed surface 111a, and the other end is open, and the atomizing hole 11b is formed on the first closed surface 111a, that is, the inner surface of the first closed surface 111a is arranged in a conical shape, and the inlet portion 113 is also arranged in a cylindrical structure, and the end facing the outlet portion 111 is open, and the other end is provided with a second closed surface 113a, and the second closed surface 113a is provided with a liquid inlet hole 11d communicating with the nozzle body 12 or a through hole for the nozzle body 12 to pass through, and the air passage 11c is formed in the inlet portion 113, and the air passage 11c can be arranged in parallel with the liquid inlet hole 11d or the through hole, or can be arranged at an angle with the liquid inlet hole 11d. The intermediate portion 112 is arranged between the outlet portion 111 and the inlet portion 113, and the intermediate portion 112 comprises a sealing plate 1121, which is connected to the outlet portion 111 and the inlet portion 113 by, for example, adhesion or bolt connection, and cooperates with the outlet portion 111 to form a closed flow guide cavity and cooperates with the inlet portion 113 to form a closed air passage cavity, the flow guide cavity communicates with the outside through the atomizing hole 11b, and the air passage cavity communicates with the gas source through the air passage 11c, and the flow guide cavity and the air passage cavity together constitute the atomizing cavity 11a, and the nozzle body 12 passes through the sealing plate 1121, and the flow guide cavity and the air passage cavity are communicated through the communication holes 112b arranged equidistantly around the nozzle body 12 on the sealing plate 1121, and the axial direction of the communication holes 112b is consistent with the axial direction of the atomizing hole 11b. Exemplarily, the nozzle body 12 is integrally formed with the sealing plate 1121, and the sealing plate 1121 is provided with a through hole for the nozzle body 12 to pass through, and the nozzle body 12 passes through the through hole and is connected to the sealing plate 1121 by the connecting ribs arranged around the nozzle body 12, and the connecting ribs divide the through hole into a plurality of communication holes 112b.

[0052] After the high-pressure gas enters the air passage cavity from the air passage 11c, it enters the flow guide cavity through the communication holes 112b, and under the guidance of the communication holes 112b, the amount of high-pressure gas flowing to each flow guide groove 12b of the nozzle body 12 is substantially the same, thereby improving the uniformity of the medium atomization.

[0053] In order to reduce the assembly difficulty of the outlet part 111 and the sealing plate 1121 and the inlet part 113, the atomizing hole 11b and the liquid outlet of the nozzle body 12, the liquid inlet of the nozzle body 12 and the liquid inlet hole 11d or the through hole are automatically aligned, the side of the sealing plate 1121 facing the outlet part 111 is provided with a slot 112a, the open end of the outlet part 111 can be inserted into the slot 112a to realize the positioning of the sealing plate 1121 and the outlet part 111, the side of the sealing plate 1121 facing the inlet part 113 is provided with an annular positioning rib 1123, and correspondingly, the open end of the inlet part 113 is provided with an annular positioning groove 113b, the positioning rib 1123 can be inserted into the positioning groove 113b to realize the positioning of the sealing plate 1121 and the inlet part 113. On this basis, the outlet part 111 and the sealing plate 1121, and the sealing plate 1121 and the inlet part 113 are all sealed and bonded by sealant, and the sealant is filled in the slot 112a and the positioning groove 113b.

[0054] In some embodiments, the intermediate part 112 further comprises a supporting sleeve 1122, which is arranged on the side of the sealing plate 1121 facing the outlet part 111 and coaxial with the through hole, and is inserted into the outlet part 111 and abuts against the inner surface of the outlet part 111, so as to improve the stability of the connection between the sealing plate 1121 and the outlet part 111 and ensure the coaxiality of the atomizing hole 11b and the flow channel 12a.

[0055] Optionally, in order to ensure the coaxiality of the flow channel 12a and the liquid inlet hole 11d or the through hole, the inlet part 113 further comprises a plug-in sleeve 1131, which is arranged on the side of the second closed surface 113a facing the sealing plate 1121 and coaxial with the liquid inlet hole 11d or the through hole, and the second end of the nozzle body 12 is inserted into the plug-in sleeve 1131.

[0056] Taking the case that the liquid inlet hole 11d is arranged on the second closed surface 113a as an example, the entire nozzle body 12 is located in the atomizing cavity 11a, in order to reduce the difficulty of connecting the nozzle body 12 with the medium supply device, the inlet part 113 is further provided with a first connecting pipe 1132, which is coaxial with and communicates with the liquid inlet hole 11d and is used for connecting with the medium supply device, and the inlet part 113 is further provided with a second connecting pipe 1133, which is coaxial with and communicates with the ventilation hole 11c and is used for connecting with the gas source. In this embodiment, the ventilation hole 11c is arranged on the second closed surface 113a and parallel to the liquid inlet hole 11d, so as to facilitate the integration of the gas source and the medium supply device.

[0057] When the medium supply device adopts a peristaltic pump, due to the pulse characteristics of the peristaltic pump itself, the atomizing nozzle exhibits the phenomenon of intermittent spraying, for example, spraying for 1 second (s), and after a gap of 0.5 s, spraying again for 1 s, and after a gap of 0.5 s. Based on this, referring to FIG. 4, the radius of the flow channel 12a gradually decreases from the end away from the liquid outlet to the end close to the liquid outlet, compared with the cylindrical flow channel 12a with the same radius as the end of the flow channel 12a away from the liquid outlet, the volume is reduced by 2 / 3, and when the same volume of liquid is injected, the length of the liquid column formed is longer, the intermittent time of atomization is shortened, for example, from the original 1 s spraying and 0.5 s gap to 1 s spraying and 0.2 s gap.

[0058] Embodiment Two:

[0059] Referring to FIGS. 9-13, the present embodiment proposes an atomizing instrument, which includes a shell 20, a first fluid pump 30, a second fluid pump 40, a liquid storage bottle 50, and the atomizing nozzle 10 in Embodiment One. The first fluid pump 30, the second fluid pump 40, and the atomizing nozzle 10 are all located in the shell 20. The shell 20 is provided with an atomizing outlet through which the atomizing nozzle 10 passes out and a socket into which the liquid storage bottle 50 is inserted. One end of the liquid storage bottle 50 is inserted into the socket and connected with the first fluid pump 30. The first fluid pump 30 and the liquid storage bottle 50 serve as a medium supply device. The first fluid pump 30 is connected with the liquid inlet hole 11d of the atomizing nozzle 10 and can pump the medium stored in the liquid storage bottle 50 into the flow channel 12a. The second fluid pump 40 serves as a gas source supply device and is connected with the air hole 11c of the atomizing nozzle 10, and can pump high-pressure gas into the atomizing cavity 11a.

[0060] When the atomizing instrument is used, the first fluid pump 30 and the second fluid pump 40 are started at the same time. At this time, the medium in the liquid storage bottle 50 flows into the nozzle body 12 under the action of the first fluid pump 30, and the gas forms high pressure and enters the atomizing cavity 11a under the action of the second fluid pump 40, thereby atomizing the medium flowing out of the nozzle body 12 twice to form atomized particles.

[0061] Optionally, the first fluid pump 30 is a peristaltic pump, which can draw the medium in the liquid storage bottle 50 by peristalsis. The peristaltic pump can recover the medium in the nozzle body 12 by reversing, thereby avoiding the problems that the nozzle body 12 is blocked due to long-time non-use of the atomizing instrument and that the liquid is taken out by the instantaneous change of air pressure when the first fluid pump 30 stops, which affects the use effect of the customer. Moreover, the peristaltic pump also solves the problem that the atomizing instrument cannot be cleaned, and is cleaner. After use, only the liquid storage bottle 50 needs to be cleaned. Therefore, in order to facilitate the cleaning later, the liquid storage bottle 50 and the first fluid pump 30 are detachably connected, for example, the liquid storage bottle 50 is connected with the first fluid pump 30 through a silica gel tube.

[0062] Referring to FIG. 10, the shell 20 includes a decorative shell 23, a main body front shell 21 and a main body rear shell 22, wherein the main body front shell 21 and the main body rear shell 22 are both provided as a groove-shaped structure with one end open, the main body front shell 21 and the main body rear shell 22 jointly 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 formed on the main body front shell 21, both ends of the decorative shell 23 are through-penetrated, the first end of the decorative shell 23 is inserted into the connecting hole and is fixed to the main body front shell 21 by, for example, clamping, and the second end of the decorative shell 23 serves as an atomization outlet, and the atomization nozzle 10 penetrates into the atomization outlet of the decorative shell 23.

[0063] In this embodiment, the atomization instrument further includes a printed circuit board (PCB) 60, control keys and a power supply 70, the PCB 60 is electrically connected with 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 key and a gear key, the on-off key is configured to start and stop the first fluid pump 30 and the second fluid pump 40, and the gear key is configured to adjust the power of the first fluid pump 30 and the second fluid pump 40.

[0064] Optionally, the atomization instrument further includes a charging base 80, the charging base 80 includes a base upper shell 81, a base lower shell 82 and a charging substrate 83, the charging substrate 83 is located in a mounting cavity enclosed by the base upper shell 81 and the base lower shell 82, and can be connected with the PCB 60 through a spring needle 84, so as to realize charging. In order to maintain the stability of the atomization instrument during charging, a receiving groove is arranged on the base upper shell 81 for inserting the lower end of the shell 20. After the shell 20 is inserted into the receiving groove, the spring needle 84 is automatically connected with the power supply 70, realizing automatic charging.

[0065] In some embodiments, the atomization nozzle 10 in the present application includes a nozzle shell 11 and a nozzle body 12 located in the nozzle shell 11, a flow guide groove 12b arranged on the nozzle body 12 can guide the high-pressure gas to converge at point a in the nozzle shell 11 to perform the first atomization on the medium, and a flow guide gap 10a can be formed between the nozzle body 12 and the nozzle shell 11, the flow guide gap 10a can guide the high-pressure gas to converge at point b in the nozzle shell 11 which does not coincide with point a to perform the second atomization on the medium, and the medium forms the third atomization after being ejected out of the atomization cavity 11a due to the change of air pressure, so that the medium can be dispersed into smaller atomized particles when the atomization viscosity of the medium is large, and the atomization effect is good. The atomization instrument including the atomization nozzle 10 in the present application forms small atomized particles, which can improve the user experience.

Claims

1. An atomizing nozzle comprising: a nozzle shell (11) provided with an atomizing cavity (11a), an atomizing hole (11b) communicating with the atomizing cavity (11a) and the outside, and a vent hole (11c) communicating with the atomizing cavity (11a) and a gas source; a nozzle body (12) provided with a flow channel (12a) extending through the nozzle body (12), the nozzle body (12) being provided with a liquid outlet at the first end of the nozzle body (12) and facing the atomizing hole (11b), the first end of the nozzle body (12) being provided with a plurality of flow guide grooves (12b) spaced apart in the circumferential direction, the plurality of flow guide grooves (12b) extending to the first end face of the nozzle body (12) and the extension lines of the plurality of flow guide grooves (12b) intersecting at point a, the first end face of the nozzle body (12) cooperating with the inner surface of the nozzle shell (11) to form a plurality of flow guide gaps (10a), the extension lines of the plurality of flow guide gaps (10a) intersecting at point b, and points a and b not coinciding.

2. The atomizing nozzle of claim 1, wherein, Points a and b are located in the nozzle shell (11) and on the axis of the atomizing hole (11b), and point a is located on the side of point b close to the nozzle body (12).

3. The atomizing nozzle of claim 2, wherein, The groove bottom of the flow guide groove (12b) is inclined from the end away from the atomizing hole (11b) to the direction close to the atomizing hole (11b), and the flow guide gap (10a) is inclined from the end away from the atomizing hole (11b) to the direction close to the atomizing hole (11b).

4. The atomizing nozzle of claim 3 wherein, The minimum distance between the first end of the nozzle body (12) and the atomizing hole (11b) is L, and the distance between point a and the first end of the nozzle body (12) is L / 2.

5. The atomizing nozzle of claim 4, wherein, 0≤L≤1mm.

6. The atomizing nozzle of claim 5 wherein, The angle between the groove bottom of the flow guide groove (12b) and the axis of the atomizing hole (11b) is a, and 13.2°≤a≤29.5°.

7. The atomizing nozzle of claim 1 wherein, The flow channel (12a) is linear, the nozzle shell (11) comprises an outlet portion (111), an inlet portion (113) and an intermediate portion (112), the intermediate portion (112) is arranged between the outlet portion (111) and the inlet portion (113), the intermediate portion (112) cooperates with the outlet portion (111) to form a closed flow guide cavity, the intermediate portion (112) cooperates with the inlet portion (113) to form a closed vent cavity, the atomizing hole (11b) is arranged in the outlet portion (111), the flow guide cavity and the vent cavity jointly form the atomizing cavity (11a), the nozzle body (12) is arranged in the intermediate portion (112), and a plurality of communication holes (112b) are arranged in the intermediate portion (112) and surround the nozzle body (12) and are equidistantly arranged.

8. The atomizing nozzle of claim 7, wherein, The radius of the flow channel (12a) gradually decreases from the end away from the liquid outlet to the end close to the liquid outlet.

9. The atomizing nozzle of claim 7 wherein, The outlet part (111) and the inlet part (113) are provided as a groove-shaped structure with one end open, one side of the middle part (112) facing the outlet part (111) is provided with a slot (112a), and the open end of the outlet part (111) is inserted into the slot (112a); one side of the middle part (112) facing the inlet part (113) is provided with a positioning rib (1123), and the open end of the inlet part (113) is provided with a positioning slot (113b), and the positioning rib (1123) is inserted into the positioning slot (113b).

10. An atomization instrument comprising a housing (20), a first fluid pump (30), a second fluid pump (40) and a liquid storage bottle (50), the first fluid pump (30) and the second fluid pump (40) are located in the housing (20), the liquid storage bottle (50) is connected with the first fluid pump (30), the atomization instrument further comprises the atomization nozzle (10) as claimed in any one of claims 1-9, the first fluid pump (30) communicates with the flow channel (12a), and the second fluid pump (40) communicates with the atomization cavity (11a) through the vent hole (11c).

11. The atomizer of claim 10, wherein, The first fluid pump (30) is a peristaltic pump.

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