Atomizing nozzle and atomizer

Abstract

The utility model belongs to the technical field of atomizers, and discloses an atomizing nozzle and an atomizer, the atomizing nozzle comprises a nozzle shell and a nozzle main body, the nozzle shell is provided with an atomizing cavity, an atomizing hole communicated with the atomizing cavity and the outside, and a vent hole communicated with the atomizing cavity and an air source; the first end of the nozzle body is arranged in the atomization cavity, a flow channel penetrating through the nozzle body is formed in the nozzle body, a liquid outlet of the flow channel is formed in the first end of the nozzle body and right faces the atomization hole, and a plurality of flow guide grooves are formed in the first end of the nozzle body at intervals in the circumferential direction. The multiple flow guide grooves extend to the first end face of the nozzle body, the extension lines of the flow guide grooves intersect at a point a, the first end face of the nozzle body is matched with the inner surface of the nozzle shell to form flow guide gaps, and the extension lines of the flow guide gaps intersect at a point b. The point a and the point b are not overlapped. The atomizing nozzle can atomize a medium for three times, and the atomizing effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of atomizers, in particular to an atomizing nozzle and an atomizer. Background Art

[0002] An atomizer is a device that can spray liquid into atomized form and evenly suspend it in the air. The use of an atomizer can effectively increase the contact area between the medium and the surrounding medium or the human body. It can be widely used in many fields such as beauty, medical, and dust removal.

[0003] There are two main atomization methods used by nebulizers: one is to use ultrasonic atomizers for atomization; ultrasonic atomizers are only suitable for media with low atomization viscosity, such as water; the other is to use pneumatic atomization. The viscosity range of media that can be atomized by pneumatic atomization is wider than that of media that can be atomized by ultrasonic atomizers, but the range is also limited, and the media particles formed after atomization are relatively large. When it is applied to the beauty industry to atomize skin care products or cosmetics such as lotions, it will seriously affect the consumer's experience. Utility Model Content

[0004] One of the purposes of the utility model is to provide an atomizing nozzle, which can atomize a wide range of medium viscosities and form small medium particles after atomization.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] An atomizing nozzle comprises a nozzle shell and a nozzle body, wherein the nozzle shell is provided with an atomizing chamber, an atomizing hole connecting the atomizing chamber with the outside, and an air vent connecting the atomizing chamber with an air source; the first end of the nozzle body is arranged in the atomizing chamber, the nozzle body is provided with a flow channel penetrating the nozzle body, the liquid outlet of the flow channel is arranged at the first end of the nozzle body and directly faces the atomizing hole, the first end of the nozzle body is provided with a plurality of guide grooves at intervals along the circumferential direction, the plurality of guide grooves extend to the first end face of the nozzle body and the extension lines intersect at point a, the first end face of the nozzle body cooperates with the inner surface of the nozzle shell to form a guide gap, and the extension lines of each guide gap intersect at point b; point a and point b do not overlap.

[0007] Optionally, point a and point b are both located inside the nozzle housing and on the axis of the atomization hole, and point a is located on a side of point b close to the nozzle body.

[0008] Optionally, the bottom of the guide groove is inclined from an end away from the atomization hole to a direction close to the atomization hole, and the guide gap is inclined from an end away from the atomization hole to a direction close to the atomization hole.

[0009] Optionally, the minimum distance between the first end of the nozzle body and the atomization hole is L, and the distance between point a and the first end of the nozzle body is L2.

[0010] Optionally, 0≤L≤1mm.

[0011] Optionally, 13.2°≤α≤29.5°.

[0012] Optionally, the flow channel is linear, and the nozzle shell includes an outlet portion, an inlet portion and a middle portion, the middle portion is arranged between the outlet portion and the inlet portion, the middle portion cooperates with the outlet portion to enclose a closed flow guide cavity, and the middle portion cooperates with the inlet portion to form a closed ventilation cavity, the atomization hole is opened in the outlet portion, the flow guide cavity and the ventilation cavity together form the atomization cavity, the nozzle body is penetrated through the middle portion, and the middle portion is provided with connecting holes that surround the nozzle body and are equidistantly arranged.

[0013] Optionally, the flow channel has a radius that gradually decreases from an end away from the liquid outlet to an end close to the liquid outlet.

[0014] Optionally, the outlet portion and the inlet portion are both configured as a groove-like structure with one end open, a slot is provided on a side of the middle portion facing the outlet portion, the open end of the outlet portion is inserted into the slot, a positioning rib is provided on a side of the middle portion facing the inlet portion, a positioning groove is provided at the open end of the inlet portion, and the positioning rib is inserted into the positioning groove.

[0015] The second object of the utility model is to provide a nebulizer, comprising a shell, a first fluid pump, a second fluid pump and a liquid storage bottle, wherein the first fluid pump and the second fluid pump are both located in the shell, the liquid storage bottle is connected to the first fluid pump, and also comprises any of the above-mentioned atomizing nozzles, 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.

[0016] Optionally, the first fluid pump is a peristaltic pump.

[0017] Beneficial effects of the utility model: the atomizing nozzle in the utility model includes a nozzle shell and a nozzle body located in the nozzle shell, the guide groove arranged on the nozzle body can guide the high-pressure gas to meet at point A in the nozzle shell, and perform the first atomization on the medium, and a guide gap can also be formed between the nozzle body and the nozzle shell, and the guide gap can guide the high-pressure gas to meet at point B in the nozzle shell that does not overlap with point A, and perform the second atomization on the medium, and the medium forms a third atomization due to the change in air pressure after rushing out of the atomizing cavity, and when atomizing a medium with a large viscosity, the medium can also be broken up into smaller atomized particles, and the atomization effect is good. The atomizer including the atomizing nozzle in the utility model forms small atomized particles, which can improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the atomizing nozzle in the embodiment of the utility model;

[0019] Figure 2 It is a front view of the atomizing nozzle in the embodiment of the utility model;

[0020] Figure 3 yes Figure 2 Cross-sectional view along MM direction;

[0021] Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle;

[0022] Figure 5 yes Figure 4 's labeled graph;

[0023] Figure 6 It is an exploded schematic diagram of the atomizing nozzle in the embodiment of the utility model;

[0024] Figure 7 It is a schematic diagram of the connection structure between the nozzle body and the middle part in the embodiment of the utility model;

[0025] Figure 8 yes Figure 6 Sectional view along NN direction;

[0026] Fig. 9 It is a front view of the atomizer in the embodiment of the utility model;

[0027] Fig.10 It is a side view of the atomizer in the embodiment of the utility model;

[0028] Fig.11 It is a top view of the atomizer in the embodiment of the utility model;

[0029] Fig.12 This is a schematic diagram of the internal structure of the housing in the embodiment of the utility model;

[0030] Fig.13 This is a schematic diagram of the exploded structure of the charging station.

[0031] In the figure:

[0032] 10. Atomizing nozzle; 11. Nozzle shell; 111. Exit; 111a. First closing surface; 112. Middle part; 1121. Closing plate; 1122. Support sleeve; 1123. Positioning rib; 112a. Slot; 112b. Communication hole; 113. Inlet; 1131. Insert sleeve; 1132. First connecting pipe; 1133. Second connecting pipe; 113a. Second closing surface; 113b. Positioning groove; 11a. Atomizing chamber; 11b. Atomizing hole; 11c. Ventilation hole; 11d. Liquid inlet hole; 12. Nozzle body; 12a. Flow channel; 12b. Guide groove; 12c. Guide surface; 10a. Guide gap;

[0033] 20. Shell; 21. Main body front shell; 22. Main body rear shell; 23. Decorative shell;

[0034] 30. a first fluid pump;

[0035] 40. A second fluid pump;

[0036] 50. Liquid storage bottle;

[0037] 60. PCB board;

[0038] 70. Power supply;

[0039] 80. Charging seat; 81. Upper shell of base; 82. Lower shell of base; 83. Charging base plate; 84. Spring pin. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] Embodiment 1:

[0045] refer to Figure 1-Figure 8 As shown, the present embodiment proposes an atomizing nozzle, which can use high-pressure gas to break up a liquid medium to form atomized particles. The atomizing nozzle includes a nozzle shell 11 and a nozzle body 12, wherein the nozzle shell 11 is provided with an atomizing chamber 11a, an atomizing hole 11b connecting the atomizing chamber 11a with the outside, and an air vent 11c connecting the atomizing chamber 11a with the gas source. The first end of the nozzle body 12 is arranged in the atomizing chamber 11a, and a flow channel 12a penetrating 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 is directly opposite to the atomizing hole 11b. The first end of the nozzle body 12 is provided with a plurality of guide grooves 12b spaced apart along the circumferential direction. The guide grooves 12b extend to the first end face of the nozzle body 12 and the extension lines intersect 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 guide gap 10a, and the extension lines of each guide gap 10a intersect at point b, and point a and point b do not overlap.

[0046] When the above-mentioned atomizing nozzle is used to atomize the medium, the air 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, and 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 air vent 11c. Under the guidance of the guide groove 12b and the guide gap 10a, the high-pressure gas forms a first airflow blowing toward point a and a second airflow blowing toward point b, and is atomized at points a and b respectively. Moreover, after the medium rushes out of the atomizing chamber 11a, it forms a third atomization due to the change in air pressure. When atomizing a medium with a larger viscosity, the medium can also be broken up into smaller atomized particles, and the atomization effect is good.

[0047] The number of the guide grooves 12b can be adaptively adjusted according to the size of the nozzle body 12, for example, 4, 3 or 5 guide grooves 12b can be provided. In this embodiment, 4 guide grooves 12b are provided.

[0048] In this embodiment, point a and point b are both located in the nozzle housing 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. The medium is first atomized at point a and then atomized at point b for the second time to avoid the first airflow affecting the effect of the second atomization.

[0049] 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 third atomizing effect. After the first airflows converge at point a, they will disperse separately. During the dispersion process, once the medium entrained 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, refer to Figure 4-Figure 5 As shown, in order to limit the diameter of the atomizing hole 11b, the guide groove 12b is set as a wedge-shaped guide groove, and its groove bottom is inclined from the end away from the atomizing hole 11b to the direction close to the atomizing hole 11b. Similarly, the guide gap 10a is also set to be inclined from the end away from the atomizing hole 11b to the direction of the atomizing hole 11b. Specifically, the end of the atomizing chamber 11a connected to the atomizing hole 11b is set to be 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. At this time, 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.

[0050] It should be emphasized that the bottom of the guide groove 12b is in a state where the width gradually decreases from the end away from the atomization hole 11b to the end close to the atomization hole 11b, so as to further increase the flow rate of the first airflow and improve the atomization effect.

[0051] Experiments have shown that, under the same other conditions, the atomization effect is best when point a is located between the nozzle body 12 and the atomization hole 11b, that is, the atomization effect is best when point a is not in the atomization hole 11b. In this embodiment, point a is set on the midline of the distance between the nozzle body 12 and the atomization hole 11b.

[0052] refer to Figure 5 As shown, 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 when it flows to the outlet end of the atomizing hole 11b is φ2, and the angle between the bottom of the guide groove 12b and the axis of the atomizing hole 11b is α. 0≤L≤1mm (if it is greater than 1mm, the medium after secondary atomization is too far away from the atomizing hole 11b, and it is easy to re-condense to form large particles), the original value of the diameter φ1 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 longer the length of the atomizing hole 11b, the easier it is for the atomized medium to gather in the atomizing hole 11b, so 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, and the diameter of the atomizing hole 11a is also as small as possible under the premise of the accuracy that can be achieved by the manufacturing process due to the Venturi principle).

[0053] When φ2≤φ1, the first airflow will not collide with the nozzle housing 11 at all, and the atomization effect is the best.

[0054] And by

[0055]

[0056] We can get:

[0057]

[0058] When L takes the limit value of 0, α=29.5°, so when α≤29.5°, the first airflow does not collide with the nozzle housing 11; when L takes the limit value of 1mm, α=13.2°, so when α≤13.2°, the first airflow does not collide with the nozzle housing 11. Obviously, the larger the value of α, the wider the range covered by the medium after it is sprayed out of the atomization hole 11b. Therefore, when L is selected in the range of 0≤L≤1mm, α can be selected in the opposite range of 13.2°≤α≤29.5°. For example, when L=1mm, α=13.2°, at this time, the first airflow does not collide with the nozzle housing 11 and the range covered by the medium after it is sprayed out of the atomization hole 11b is the widest.

[0059] In this embodiment, the angle β between the generatrix at one end of the atomizing chamber 11a communicating with the atomizing hole 11b (i.e., the generatrix on the inner surface of one end of the nozzle shell 11 where the atomizing hole 11b is opened) 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 airflow and the second airflow have a higher flow rate, further improving the atomization effect.

[0060] In order to reduce the kinetic energy loss of the medium in the flow channel 12a, the flow channel 12a is set to be a straight line coaxial with the atomizing hole 11b, so the vent hole 11c and the nozzle body 12 are necessarily not on the same straight line. At this time, in order to maintain the uniformity of atomization, refer to Figure 3 , Figure 6 and Figure 8 As shown, the nozzle housing 11 includes an outlet portion 111, an inlet portion 113 and a middle portion 112, wherein the outlet portion 111 is configured as a cylindrical structure, and a first closed surface 111a is provided at one axial end, and the other end is open, and the atomization hole 11b is provided on the first closed surface 111a, that is, the inner surface of the first closed surface 111a is configured as a cone, and the inlet portion 113 is also configured as a cylindrical structure, and one end thereof facing the outlet portion 111 is open, and a second closed surface 113a is provided at the other end, and a liquid inlet hole 11d connected to the nozzle body 12 or a through hole for the nozzle body 12 to pass through is provided on the second closed surface 113a, and a vent hole 11c is provided in the inlet portion 113, which can be arranged in parallel with the liquid inlet hole 11d or the through hole, or can be arranged at an angle to the liquid inlet hole 11d, which is not specifically limited in the present embodiment. The middle part 112 is arranged between the outlet part 111 and the inlet part 113, and includes a sealing plate 1121. The sealing plate 1121 is connected to the outlet part 111 and the inlet part 113 by means including but not limited to bonding and bolting, and cooperates with the outlet part 111 to form a closed guide chamber, and cooperates with the inlet part 113 to form a closed ventilation chamber. The guide chamber is connected to the outside through the atomization hole 11b, and the ventilation chamber is connected to the air source through the ventilation hole 11c. The guide chamber and the ventilation chamber together constitute the atomization chamber 11a. The nozzle body 12 is penetrated on the sealing plate 1121, and the guide chamber and the ventilation chamber are connected through connecting holes 112b equidistantly arranged on the sealing plate 1121 around the nozzle body 12, and the axial direction of the connecting hole 112b is consistent with the axial direction of the atomization hole 11b. Specifically, the nozzle body 12 and the sealing plate 1121 are integrally formed, and a through hole is opened on the sealing plate 1121 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 through connecting ribs arranged around the nozzle body 12. The connecting ribs divide the through hole into multiple connecting holes 112b.

[0061] After the high-pressure gas enters the ventilation cavity from the ventilation hole 11c, it enters the guide cavity 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 roughly the same, which improves the uniformity of medium atomization.

[0062] In order to reduce the difficulty of assembly when connecting the outlet part 111 and the sealing plate 1121, and the sealing plate 1121 and the inlet part 113, the atomizing hole 11b and the liquid outlet of the nozzle body 12, and the liquid inlet of the nozzle body 12 are automatically aligned with the liquid inlet hole 11d or the through hole, a slot 112a is provided on the side of the sealing plate 1121 facing the outlet part 111, and 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, and an annular positioning rib 1123 is provided on the side of the sealing plate 1121 facing the inlet part 113, and correspondingly, an annular positioning groove 113b is provided at the open end of the inlet part 113, and 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 portion 111 and the sealing plate 1121, and the sealing plate 1121 and the inlet portion 113 are bonded with sealant, and the sealant is filled in the slot 112a and the positioning groove 113b.

[0063] Furthermore, the middle portion 112 also includes a supporting sleeve 1122, which is arranged on a side of the sealing plate 1121 facing the outlet portion 111 and is coaxial with the through hole. The supporting sleeve 1122 is inserted into the outlet portion 111 and abuts against the inner surface of the outlet portion 111 to further improve the stability of the connection between the sealing plate 1121 and the outlet portion 111, and ensure the coaxiality of the atomization hole 11b and the flow channel 12a.

[0064] Optionally, in order to ensure the coaxiality of the flow channel 12a and the liquid inlet hole 11d or the through hole, the inlet portion 113 also includes a plug-in sleeve 1131, which is arranged on the surface of the second closed surface 113a facing the sealing plate 1121 and is 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.

[0065] Taking the case where the second closed surface 113a is provided with the liquid inlet hole 11d as an example, the entire nozzle body 12 is located in the atomizing chamber 11a. In order to reduce the difficulty of connecting the nozzle body 12 with the medium supply device, the inlet portion 113 is further provided with a first connecting pipe 1132, which is coaxial with and connected to the liquid inlet hole 11d, and is used to connect with the medium supply device. At the same time, the inlet portion 113 is further provided with a second connecting pipe 1133, which is coaxial with and connected to the vent hole 11c, and is used to connect with the air source. In this embodiment, the vent hole 11c is provided on the second closed surface 113a and is parallel to the liquid inlet hole 11d, so as to facilitate the integration of the air source and the medium supply device.

[0066] When the medium supply device adopts a peristaltic pump, due to the pulse characteristics of the peristaltic pump itself, the atomizing nozzle exhibits intermittent spraying, for example, spraying for 1s, with a 0.5s interval, and then spraying for 1s again with a 0.5s interval. Based on this, refer to Figure 4 As shown, 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. When the same volume of liquid is injected, the length of the liquid column formed is longer, and the interval time of atomization is shortened, for example, the original interval of 0.5s after 1s of spraying is improved to 0.2s after 1s of interval.

[0067] Embodiment 2:

[0068] refer to Figure 9-13 As shown, this embodiment proposes an atomizer, including a shell 20, a first fluid pump 30, a second fluid pump 40, a liquid storage bottle 50 and the atomizing nozzle 10 in the first embodiment, 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 for the atomizing nozzle 10 to pass through and a socket for the liquid storage bottle 50 to be 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 medium supply devices, the first fluid pump 30 connects the liquid storage bottle 50 and 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 an air source supply device, is connected to the air vent 11c of the atomizing nozzle 10, and can pump high-pressure gas into the atomizing chamber 11a.

[0069] When the nebulizer is in use, 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 from the liquid storage bottle 50 under the action of the first fluid pump 30, and the gas forms high pressure under the action of the second fluid pump 40 and enters the atomization chamber 11a, and the medium flowing out of the nozzle body 12 is atomized twice to form atomized particles.

[0070] Optionally, the first fluid pump 30 is a peristaltic pump, which drains the medium in the liquid storage bottle 50 by peristalsis. The peristaltic pump can recover the medium in the nozzle body 12 by reversing, avoiding the problem that the nozzle body 12 is blocked due to long-term non-use of the nebulizer and the liquid is carried out by the instantaneous air pressure change when the first fluid pump 30 stops, causing the medium to be sprayed out and affecting the customer's use effect. It also solves the problem that the nebulizer cannot be cleaned, and it is cleaner. After use, only the liquid storage bottle 50 needs to be cleaned. Therefore, in order to facilitate later cleaning, the liquid storage bottle 50 and the first fluid pump 30 are detachably connected, for example, the liquid storage bottle 50 is connected to the first fluid pump 30 through a silicone tube.

[0071] refer to Fig.10As shown, 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 configured as a groove-shaped structure with one end open, and the main body front shell 21 and the main body rear shell 22 together enclose an elliptical cavity, and the first fluid pump 30 and the second fluid pump 40 are both fixed in the elliptical cavity, and a connecting hole is opened on the main body front shell 21. Both ends of the decorative shell 23 are through-connected, one end is inserted into the connecting hole and is fixedly connected to the main body front shell 21 by a method including but not limited to clipping, and the other end is used as an atomization outlet, and the atomization nozzle 10 penetrates into the atomization outlet of the decorative shell 23.

[0072] In this embodiment, the atomizer also includes a PCB board 60, a control key and a power supply 70. The PCB board 60 is electrically connected to the first fluid pump 30, the second fluid pump 40, the control key and the power supply 70. The control key includes but is not limited to a switch key and a gear key. The switch key is used to start and close the first fluid pump 30 and the second fluid pump 40, and the gear key is used to adjust the power of the first fluid pump 30 and the second fluid pump 40.

[0073] Optionally, the atomizer further includes a charging stand 80, which 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 formed by the base upper shell 81 and the base lower shell 82, and can be connected to the battery through a spring pin 84. In order to maintain the stability of the atomizer during charging, a receiving groove is provided on the base upper shell 81 for the lower end of the shell 20 to be inserted. After the shell 20 is inserted into the receiving groove, the spring pin 84 is automatically connected to the power supply 70 to achieve automatic charging.

[0074] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Atomizing nozzle, characterized in that: include: A nozzle shell (11), wherein the nozzle shell (11) is provided with an atomizing chamber (11a), an atomizing hole (11b) connecting the atomizing chamber (11a) with the outside, and an air vent (11c) connecting the atomizing chamber (11a) with an air source; A nozzle body (12), wherein the first end of the nozzle body (12) is arranged in the atomizing chamber (11a), the nozzle body (12) is provided with a flow channel (12a) penetrating the nozzle body (12), the liquid outlet of the flow channel (12a) is arranged at the first end of the nozzle body (12) and directly faces the atomizing hole (11b), the first end of the nozzle body (12) is provided with a plurality of guide grooves (12b) spaced along the circumferential direction, the plurality of guide grooves (12b) extend to the first end face of the nozzle body (12) and their extension lines intersect at point a, the first end face of the nozzle body (12) cooperates with the inner surface of the nozzle shell (11) to form a guide gap (10a), the extension lines of each guide gap (10a) intersect at point b, and point a and point b do not overlap.

2. The atomizing nozzle according to claim 1, characterized in that: Point a and point b are both located inside the nozzle housing (11) and on the axis of the atomization hole (11b), and point a is located on a side of point b close to the nozzle body (12).

3. The atomizing nozzle according to claim 2, characterized in that: The bottom of the guide groove (12b) is inclined from an end away from the atomization hole (11b) to a direction close to the atomization hole (11b), and the guide gap (10a) is inclined from an end away from the atomization hole (11b) to a direction close to the atomization hole (11b).

4. The atomizing nozzle according to claim 3, characterized in that: The minimum distance between the first end of the nozzle body (12) and the atomization hole (11b) is L, and the distance between point a and the first end of the nozzle body (12) is L2.

5. The atomizing nozzle according to claim 4, characterized in that: 0≤L≤1mm.

6. The atomizing nozzle according to claim 5, characterized in that: 13.2°≤α≤29.5°。 7. The atomizing nozzle according to claim 1, characterized in that: The flow channel (12a) is linear, the nozzle housing (11) comprises an outlet portion (111), an inlet portion (113) and an intermediate portion (112), the intermediate portion (112) being arranged between the outlet portion (111) and the inlet portion (113), the intermediate portion (112) cooperating with the outlet portion (111) to enclose a closed flow guide cavity, the intermediate portion (112) cooperating with the inlet portion (113) to form a closed ventilation cavity, the atomizing hole (11b) being arranged in the outlet portion (111), the flow guide cavity and the ventilation cavity together forming the atomizing cavity (11a), the nozzle body (12) being arranged through the intermediate portion (112), and the intermediate portion (112) being provided with connecting holes (112b) surrounding the nozzle body (12) and arranged at equal distances.

8. The atomizing nozzle according to claim 7, characterized in that: The radius of the flow channel (12a) gradually decreases from an end away from the liquid outlet to an end close to the liquid outlet.

9. The atomizing nozzle according to claim 7, characterized in that: The outlet portion (111) and the inlet portion (113) are both configured as groove-shaped structures with one end open; a slot (112a) is provided on a side of the middle portion (112) facing the outlet portion (111); the open end of the outlet portion (111) is inserted into the slot (112a); a positioning rib (1123) is provided on a side of the middle portion (112) facing the inlet portion (113); a positioning groove (113b) is provided at the open end of the inlet portion (113); the positioning rib (1123) is inserted into the positioning groove (113b).

10. A nebulizer, comprising a housing (20), a first fluid pump (30), a second fluid pump (40) and a liquid storage bottle (50), wherein the first fluid pump (30) and the second fluid pump (40) are both located in the housing (20), and the liquid storage bottle (50) is connected to the first fluid pump (30), characterized in that: It also includes the atomizing nozzle (10) as claimed in any one of claims 1 to 9, wherein the first fluid pump (30) is connected to the flow channel (12a), and the second fluid pump (40) is connected to the atomizing chamber (11a) through the vent hole (11c).

11. The atomizer according to claim 10, characterized in that: The first fluid pump (30) is a peristaltic pump.

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