Atomizing nozzle and atomizing instrument

Abstract

The application belongs to the technical field of atomization instruments, and discloses an atomization nozzle and an atomization instrument. The atomization nozzle comprises a nozzle shell and a nozzle body. The nozzle shell is provided with an atomization cavity, an atomization hole communicating with the atomization cavity and the outside world, and a ventilation hole communicating with the atomization cavity and a gas source. The first end of the nozzle body is arranged in the atomization 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 atomization hole. The first end of the nozzle body is circumferentially and intermittently 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 of the plurality of flow guide grooves meet at point a. The first end face of the nozzle body cooperates with the inner surface of the nozzle shell to form flow guide gaps. The extension lines of the flow guide gaps meet at point b. Points a and b do not coincide. The atomization nozzle can atomize the medium three times, and has good atomization effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization instrument, in particular to an atomization nozzle and an atomization instrument. BACKGROUND

[0002] The atomization instrument is a device capable of atomizing and spraying liquid and uniformly suspending in the air. The atomization instrument can effectively increase the contact area of the medium with the surrounding medium or human body, and can be widely applied to many fields such as the beauty field, the medical field and the dust removal field.

[0003] Currently, there are mainly two atomization methods used in the atomization instrument: one is ultrasonic atomization sheet atomization, which is only suitable for atomizing media with low viscosity, such as water; the other is pneumatic atomization, which can atomize media with a wider viscosity range than the ultrasonic atomization sheet atomization, but the range is also limited, and the medium particles formed after atomization are relatively large. When the atomization instrument is applied to the beauty industry to atomize skin care products or cosmetics such as emulsion, it will seriously affect the use experience of consumers. SUMMARY

[0004] One of the purposes of the present application is to provide an atomization nozzle capable of atomizing media with a wide viscosity range and forming small medium particles after atomization.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] The atomization nozzle comprises a nozzle shell and a nozzle body. The nozzle shell is provided with an atomization cavity, an atomization hole communicating with the atomization cavity and the outside, and a ventilation hole communicating with the atomization cavity and a gas source. The first end of the nozzle body is arranged in the atomization 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 atomization 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 flow guide gap. The extension lines of each flow guide gap intersect at point b. Points a and b do not coincide.

[0007] Optionally, points a and b are located in the nozzle shell and on the axis of the atomization hole. Point a is located on the side of point b close to the nozzle body.

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

[0009] Optionally, 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 L2.

[0010] Optionally, 0≤L≤1mm.

[0011] Optionally, 13.2°≤α≤29.5°.

[0012] Optionally, the flow channel is linear, the nozzle shell comprises 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 and the outlet portion together enclose a closed flow guide cavity, the intermediate portion and the inlet portion together form a closed ventilation cavity, the atomizing hole is arranged in the outlet portion, the flow guide cavity and the ventilation cavity together form the atomizing cavity, the nozzle body is arranged in the intermediate portion, and the intermediate portion is provided with a plurality of communication holes arranged around the nozzle body at equal distances.

[0013] Optionally, the radius of the flow channel gradually decreases from one end away from the liquid outlet to one end close to the liquid outlet.

[0014] Optionally, the outlet portion and the inlet portion are both provided in the form of a slot 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 second object of the present application is to provide an atomizing device comprising a shell, a first fluid pump and a second fluid pump, the first fluid pump and the second fluid pump are both arranged in the shell, a liquid storage bottle is connected with the first fluid pump, and the atomizing nozzle as described above is further included, the first fluid pump is connected with the flow channel, and the second fluid pump is connected with the atomizing cavity through the ventilation hole.

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

[0017] The atomizing nozzle in the present application comprises a nozzle shell and a nozzle body arranged in the nozzle shell, a flow guide groove arranged on the nozzle body can guide high-pressure gas to converge at point A in the nozzle shell to atomize the medium for the first time, a flow guide gap can be formed between the nozzle body and the nozzle shell to guide high-pressure gas to converge at point B in the nozzle shell which does not coincide with point A to atomize the medium for the second time, and the medium can be atomized for the third time due to the change of air pressure after being discharged from the atomizing cavity, so that the medium can be dispersed into smaller atomized particles when the medium has a large viscosity, and the atomizing effect is good. The atomizing device comprising the atomizing nozzle in the present application can form small atomized particles to improve the user experience. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the atomizing nozzle in an embodiment of the present invention;

[0019] Figure 2 This is a front view of the atomizing nozzle in an embodiment of the present invention;

[0020] Figure 3 yes Figure 2 Sectional view along the MM direction;

[0021] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 yes Figure 4 The marked image;

[0023] Figure 6 This is an exploded schematic diagram of the atomizing nozzle in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the connection structure between the nozzle body and the middle part in an embodiment of the present invention;

[0025] Figure 8 yes Figure 6 A cross-sectional view along the NN direction;

[0026] Figure 9 This is a front view of the nebulizer in an embodiment of the present invention;

[0027] Figure 10 This is a side view of the nebulizer in an embodiment of the present invention;

[0028] Figure 11 This is a top view of the nebulizer in an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the internal structure of the shell in an embodiment of the present invention;

[0030] Figure 13 This is a schematic diagram of the exploded structure of the charging dock.

[0031] In the picture:

[0032] 10, atomizing nozzle; 11, nozzle shell; 111, outlet part; 111a, first closing surface; 112, middle part; 1121, closing plate; 1122, supporting sleeve; 1123, positioning rib; 112a, insertion slot; 112b, communication hole; 113, inlet part; 1131, insertion sleeve; 1132, first connecting pipe; 1133, second connecting pipe; 113a, second closing surface; 113b, positioning slot; 11a, atomizing cavity; 11b, atomizing hole; 11c, air hole; 11d, liquid inlet hole; 12, nozzle body; 12a, flow channel; 12b, flow guiding slot; 12c, guiding surface; 10a, flow guiding gap;

[0033] 20, housing; 21, main body front shell; 22, main body rear shell; 23, decorative shell;

[0034] 30, first fluid pump;

[0035] 40, second fluid pump;

[0036] 50, liquid storage bottle;

[0037] 60, PCB board;

[0038] 70, power supply;

[0039] 80, charging base; 81, base upper shell; 82, base lower shell; 83, charging substrate; 84, spring needle. DETAILED DESCRIPTION

[0040] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to explain the application, but not to limit the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for the convenience of description.

[0041] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature is "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0043] In the description of the present embodiment, the terms "upper", "lower", "right", "left", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, 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, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0044] Embodiment one:

[0045] Reference Figures 1-8 As shown in the figure, the present embodiment proposes 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 the atomizing cavity 11a with the outside, and a gas passage hole 11c communicating the atomizing cavity 11a with a gas source, the first end of the nozzle body 12 is arranged in the atomizing cavity 11a, the nozzle body 12 is provided with a flow channel 12a penetrating through 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, the first end of the nozzle body 12 is provided with a plurality of flow guide grooves 12b which are spaced apart in the circumferential direction, the 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 flow guide gaps 10a, the extension lines of each flow guide gap 10a meet at point b, and point a and point b do not coincide.

[0046] When atomizing the medium using the above-mentioned atomizing nozzle, 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. 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 high viscosity, the medium can also be broken into smaller atomized particles, resulting in a good atomization effect.

[0047] The number of guide channels 12b can be adjusted adaptively according to the size of the nozzle body 12. For example, four, three, or five channels can be provided. In this embodiment, four guide channels 12b are provided.

[0048] In this embodiment, 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.

[0049] According to the Venturi principle, the larger the change in cross-sectional area, the faster the flow velocity of the gas or liquid. Therefore, the smaller the diameter of the atomizing orifice 11b, the better the third atomization effect. After the first airflow converges at point a, it will disperse again. During the dispersion process, if the medium carried by the first airflow is blocked by the inner surface of the nozzle shell 11, a reaction force will be generated, reducing the atomization effect. Based on this, refer to... Figures 4-5 As shown, to limit the diameter of the atomizing hole 11b, the guide groove 12b is configured as a wedge-shaped guide groove, with its bottom inclined from the end away from the atomizing hole 11b towards the atomizing hole 11b. Similarly, the guide gap 10a is also configured to be inclined from the end away from the atomizing hole 11b towards the atomizing hole 11b. Specifically, the end of the atomizing chamber 11a that communicates with the atomizing hole 11b is configured 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. 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 has a gradually decreasing width from the end away from the atomizing hole 11b to the end closer to the atomizing hole 11b, in order to further increase the flow rate of the first airflow and improve the atomization effect.

[0051] 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 the embodiment, the point a is arranged on the middle line of the distance between the nozzle body 12 and the atomizing hole 11b.

[0052] Reference 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 gas flow when 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≤1mm (if greater than 1mm, 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 0.4mm, and the original value of the length H of the atomizing hole 11b is 0.35mm (the longer the length of the atomizing hole 11b, the more likely 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 the manufacturing process can achieve, and similarly the diameter of the atomizing hole 11a is also as small as possible under the premise of the accuracy that the manufacturing process can achieve due to the Venturi principle).

[0053] When φ2≤φ1, the first gas flow does not collide with the nozzle shell 11 at all, and the atomization effect is best.

[0054] And by

[0055]

[0056] It can be obtained that:

[0057]

[0058] When L takes the limit value 0, α=29.5°, so when α≤29.5°, the first gas flow does not collide with the nozzle shell 11; when L takes the limit value 1mm, α=13.2°, so when α≤13.2°, the first gas flow 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, so when L is selected within the range of 0≤L≤1mm, α can be selected in the reverse direction within the range of 13.2°≤α≤29.5°. For example, when L=1mm, α=13.2°, at this time the first gas flow 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.

[0059] In this embodiment, the angle β 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 α. At the same time, 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 higher flow velocities and further improve the atomization effect.

[0060] To reduce kinetic energy loss of the medium within the flow channel 12a, the flow channel 12a is designed 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. In this case, to maintain atomization uniformity, 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 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. The vent hole 11c is opened in the inlet portion 113, and it can be arranged parallel to the liquid inlet hole 11d or the through hole, or it can be arranged at an angle to the liquid inlet hole 11d. In this embodiment, no specific limitation is made. The intermediate part 112 is located 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 adhesive or bolt connection, and forms a closed flow guide cavity with the outlet part 111 and a closed ventilation cavity with the inlet part 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 is inserted through the sealing plate 1121. The flow guide cavity and the ventilation cavity are connected by the connecting holes 112b that are equidistantly arranged on the sealing plate 1121 around the nozzle body 12. The axial direction of the connecting holes 112b is consistent with the axial direction of the atomizing holes 11b. Specifically, the nozzle body 12 and the sealing plate 1121 are integrally formed. 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 through a connecting rib arranged around the nozzle body 12. The connecting rib divides the through hole into multiple connecting holes 112b.

[0061] 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.

[0062] In order to reduce the assembly difficulty of 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, 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, and 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, 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 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.

[0063] Further, 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 the supporting sleeve 1122 is inserted into the outlet part 111 and abuts against the inner surface of the outlet part 111, so as to further 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.

[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 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.

[0065] 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.

[0066] When a peristaltic pump is used as the media supply device, the inherent pulsating characteristics of the pump cause the atomizing nozzle to exhibit intermittent spraying, for example, spraying for 1 second with a 0.5 second interval, then repeating the cycle with another 1 second interval of 0.5 seconds. Based on this, refer to... Figure 4 As shown, the radius of the flow channel 12a gradually decreases from the end furthest from the liquid outlet to the end closest to the liquid outlet. Compared with a cylindrical flow channel 12a with the same radius at the end furthest 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 atomization interval time is shortened, for example, from the original 1-second interval of 0.5 seconds to 1-second interval of 0.2 seconds.

[0067] Example 2:

[0068] refer to Figures 9-13 As shown, this embodiment proposes an atomizer, including a housing 20, a first fluid pump 30, a second fluid pump 40, a liquid 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 liquid storage bottle 50 to be inserted. One end of the liquid storage bottle 50 is inserted into the insertion port and connected to 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 connects the liquid storage bottle 50 and the liquid inlet 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 supply device and is connected to the vent 11c of the atomizing nozzle 10, and can pump high-pressure gas into the atomizing chamber 11a.

[0069] When the atomizer is in use, the first fluid pump 30 and the second fluid pump 40 start simultaneously. At this time, 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.

[0070] Optionally, 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 inactivity 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 ease of 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.

[0071] refer to Figure 10As shown, the shell 20 comprises 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, the main body front shell 21 is provided with a connecting hole, the two ends of the decorative shell 23 are through, one end is inserted into the connecting hole and is fixed to the main body front shell 21 by means of but not limited to clamping, 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 the embodiment, the atomization instrument further comprises a PCB board 60, a control key and a power supply 70, the PCB board 60 is electrically connected with the first fluid pump 30, the second fluid pump 40, the control key and the power supply 70, the control key comprises but is not limited to a key and a gear key, the key is used for starting and stopping the first fluid pump 30 and the second fluid pump 40, and the gear key is used for adjusting the power of the first fluid pump 30 and the second fluid pump 40.

[0073] Optionally, the atomization instrument further comprises a charging base 80, the charging base 80 comprises a base upper shell 81, a base lower shell 82 and a charging base plate 83, the charging base plate 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 battery through a spring needle 84. In order to maintain the stability of the atomization instrument during charging, the base upper shell 81 is provided with a receiving groove 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, so as to realize automatic charging.

[0074] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An atomizing nozzle characterized by, The utility model relates to a 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 ventilation 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 liquid outlet of the flow channel (12a) being provided 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 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 flow guide gap (10a), the extension lines of each flow guide gap (10a) intersecting at point b, and points a and b not coinciding.

2. The atomizing nozzle of claim 1, wherein Both 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 of the first end of the nozzle body (12) from the atomizing hole (11b) is , and the distance of point a from the first end of the nozzle body (12) is .

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

6. The atomizing nozzle of claim 5 wherein, The included angle between the groove bottom of the flow guide groove (12b) and the axis of the atomizing hole (11b) is , 13.2°≤ ≤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) being provided between the outlet portion (111) and the inlet portion (113), the intermediate portion (112) cooperating with the outlet portion (111) to form 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 provided in the outlet portion (111), the flow guide cavity and the ventilation cavity together forming the atomizing cavity (11a), the nozzle body (12) being provided in the intermediate portion (112), and the intermediate portion (112) being provided with communication holes (112b) surrounding the nozzle body (12) and being equidistantly arranged.

8. The atomizing nozzle of claim 7, wherein The flow channel (12a) gradually decreases in radius 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 atomizer 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 both located in the housing (20), the liquid storage bottle (50) is connected with the first fluid pump (30), characterized in that, Also comprising the atomizing nozzle (10) as claimed in any one of claims 1-9, the first fluid pump (30) is communicated with the flow channel (12a), and the second fluid pump (40) is communicated with the atomizing cavity (11a) through the vent hole (11c).

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

Images