Nozzle for aerosol generator and aerosol generator

Abstract

The embodiment of the utility model provides a nozzle for an aerosol generator and the aerosol generator, and relates to the field of aerosol generators, the nozzle comprises a nozzle body (11), the nozzle body (11) is provided with an air inlet channel (13), an atomization channel (14) and a liquid inlet channel (12); the atomization channel (14) is communicated with the air inlet channel (13) in a straight line; the liquid inlet channel (12) is vertically communicated with the atomization channel (14); the atomization channel (14) is provided with a flow guide groove formed in the inner wall, the flow guide groove is in a spiral form in the axial direction of the atomization channel (14), and gas entering the atomization channel (14) from the gas inlet channel (13) flows along the flow guide groove and finally flows out. When the spray flows out from the tail end of the spiral flow guide groove, the spray is small in diameter, large in impact force and small in particle size of diffusion towards the periphery, so that the spray always flows forwards according to the section size when the spray is sprayed out from the end part of the atomization channel, and the atomization efficiency and the spray efficiency are basically consistent.

Description

Technical Field

[0001] The utility model relates to the field of aerosol generators, in particular to a nozzle for an aerosol generator and an aerosol generator. Background Art

[0002] In the prior art, after an aerosol generator generates a spray, when the spray is ejected outwards through a nozzle, the spray will spread around. In the process of implementing the present utility model, the applicant found that there are at least the following problems in the prior art: As a result, the cross-sectional area of the ejected spray increases with the increase of the distance, that is, the atomizing nozzles are generally too large in volume. However, the intercepting surface of the device for intercepting the spray (i.e., aerosol) is small, and the required intercepting amount per unit time is large, resulting in incomplete interception of the spray and waste of the spray, and the spray efficiency and atomization efficiency of generating aerosol are inconsistent, and the interception efficiency is low. Summary of the Utility Model

[0003] An embodiment of the present utility model provides a nozzle for an aerosol generator and an aerosol generator, which can solve the problem of low interception efficiency with inconsistent spray efficiency and atomization efficiency of generating aerosol in the prior art.

[0004] To achieve the above object, on the one hand, an embodiment of the present utility model provides a nozzle for an aerosol generator, including a nozzle body, and the nozzle body has an air inlet channel, an atomization channel and a liquid inlet channel;

[0005] The atomization channel is communicated with the air inlet channel in a straight line;

[0006] The liquid inlet channel is vertically communicated with the atomization channel;

[0007] The atomization channel has a diversion groove provided on the inner wall, and the diversion groove is in a spiral form along the axial direction of the atomization channel, and the gas entering the atomization channel from the air inlet channel flows along the diversion groove and finally flows out.

[0008] Preferably, the atomization channel further has an axial hollow channel located at the axis of the atomization channel, and the radial depth of the diversion groove along the atomization channel is greater than the radius of the axial hollow channel.

[0009] Preferably, the fact that the diversion groove is in a spiral form along the axial direction of the atomization channel means that the diversion groove is an internal thread.

[0010] Preferably, the air inlet channel has a first air inlet and an air jet port, the atomization channel has a second air inlet and a mist outlet, and the air jet port is connected to the second air inlet;

[0011] The inner diameter of the second air inlet is greater than the inner diameter of the air jet port.

[0012] Preferably, the diversion channel has a diversion inlet end and a diversion outlet end. The end face of the diversion inlet end is flush with the end face of the second air inlet, and the end face of the diversion outlet end is flush with the end face of the mist outlet.

[0013] Preferably, the first air inlet is provided with an air inlet threaded interface, and the air inlet threaded interface is an internal threaded interface.

[0014] Preferably, the liquid inlet channel has a liquid inlet and a liquid spraying port, and the liquid inlet channel communicates with the atomization channel through the liquid spraying port.

[0015] Preferably, the liquid inlet channel is connected to an internal threaded interface of a liquid inlet provided on the nozzle body through an external threaded interface provided thereon.

[0016] On the other hand, an embodiment of the present invention provides an aerosol generating device, including a nozzle for an aerosol generator of any of the foregoing types. The air inlet channel is connected to a gas supply device, and the liquid inlet channel is connected to a particulate matter supply device.

[0017] The above technical solution has the following beneficial effects: Gas enters the nozzle body from the air inlet channel and then is sprayed into the connected atomization channel. Part of the entering gas will enter the diversion channel and flow along the inner wall of the diversion channel in a spiral form along the axial direction. The liquid or solid particulate matter for generating aerosol enters from the liquid inlet channel and then is sprayed into the atomization channel. The gas is mixed with the liquid or solid particulate matter to generate a spray. Of course, the gas flowing along the inner wall of the diversion channel in a spiral form along the axial direction is mixed with the liquid or solid particulate matter to generate a spray and still flows along the inner wall of the diversion channel in a spiral form along the axial direction and is ejected from the end of the atomization channel. Because the spray flows along the inner wall of the diversion channel in a spiral form along the axial direction, when it flows out from the end of the spiral-shaped diversion channel, the spray diameter is small, the impact force is large, and the diffusion to the surroundings is very small. The spray always flows forward with the cross-sectional size when it is ejected from the end of the atomization channel. Then the area of the spray falling on the front intercepting spray (i.e., aerosol) device is small, and it will not cause spray waste due to the small intercepting surface of the spray (i.e., aerosol) device in the prior art and the inability to completely capture the spray. Moreover, the large impact force reduces the time, meeting the requirements of the high interception speed, short time period, and aerosol utilization rate of the spray (i.e., aerosol) device, that is, the atomization (mixing of gas with liquid or solid particulate matter to generate a spray) and the spray (spray of the spray falling on the intercepting spray (i.e., aerosol) device) efficiency are basically the same. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a cross-sectional structure diagram of a nozzle for an aerosol generator according to an embodiment of the present invention;

[0020] Figure 2 It is a three-dimensional structure diagram of the first direction of a nozzle for an aerosol generator according to an embodiment of the present invention;

[0021] Figure 3 It is a three-dimensional structure diagram of the first direction of a nozzle for an aerosol generator according to an embodiment of the present invention.

[0022] The reference numerals are shown as:

[0023] 11. Nozzle body; 12. Liquid inlet channel; 13. Air inlet channel; 14. Atomization channel; 15. Air inlet threaded interface; 16. Inner thread interface of the liquid inlet; 17. External thread interface; 101. First air inlet; 102. Jet orifice; 103. Mist outlet; 104. Liquid inlet; 105. Liquid spray orifice; 141. Second air inlet. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] As Figure 1 shown, in combination with the embodiments of the present invention, a nozzle for an aerosol generator is provided, including a nozzle body 11. The nozzle body 11 has an air inlet channel 13, an atomization channel 14, and a liquid inlet channel 12; the atomization channel 14 is in linear communication with the air inlet channel 13; the liquid inlet channel 12 is perpendicular to and communicates with the atomization channel 14; the atomization channel 14 has a diversion groove provided on the inner wall, and the diversion groove is in a spiral form along the axial direction of the atomization channel 14, and the gas entering the atomization channel 14 from the air inlet channel 13 flows along the diversion groove and finally flows out.

[0026] Nozzle for an aerosol generator, used in the atomization process of the head section of an aerosol generator. Gas enters the nozzle body 11 from the intake channel 13 and then is sprayed into the connected atomization channel 14. Part of the entering gas enters the diversion groove and flows along the inner wall of the diversion groove in a spiral form along the axis. The liquid or solid particles used to generate the aerosol enter from the liquid inlet channel 12 and then are sprayed into the atomization channel 14. The gas is mixed with the liquid or solid particles to generate a spray. Of course, after the gas flowing along the inner wall of the diversion groove in a spiral form along the axis is mixed with the liquid or solid particles to generate a spray, it still flows along the inner wall of the diversion groove in a spiral form along the axis and is ejected from the end of the atomization channel 14. Because the spray flows along the inner wall of the diversion groove in a spiral form along the axis, when it flows out from the end of the spiral-shaped diversion groove, the spray diameter is small, the impact force is large, and the diffusion to the surrounding is very small. This enables the spray to always flow forward with the cross-sectional size when it is ejected from the end of the atomization channel 14. Then, the area of the spray falling on the front intercepting spray (i.e., aerosol) device is small, and it will not cause spray waste due to the small intercepting surface of the spray (i.e., aerosol) device in the prior art and the inability to completely capture the spray. Moreover, the large impact force reduces the time, and the inflation speed is fast, meeting the requirements of the high intercepting speed, short time period, and aerosol utilization rate of the spray (i.e., aerosol) device, that is, the atomization (mixing of gas with liquid or solid particles to generate a spray) and the spray (spray falling on the intercepting spray (i.e., aerosol) device) efficiency are basically the same.

[0027] Preferably, as Figure 1 , Figure 2 and Figure 3 shown, the atomization channel 14 further has an axial hollow channel located at the axis. The radial depth of the diversion groove along the atomization channel 14 is greater than the radius of the axial hollow channel. The air in the diversion groove will be more than the air in the axial hollow channel, enabling a large amount of spray to always flow forward with the cross-sectional size when it is ejected from the end of the atomization channel 14. Then, the spray with a large impact force can also prevent the spray in the axial hollow channel from diffusing outward. All the spray can be sprayed forward within the inner diameter size range of the atomization channel 14 when it is ejected from the atomization channel 14, ensuring the consistency of the atomization (mixing of gas with liquid or solid particles to generate a spray) and the spray (spray falling on the intercepting spray (i.e., aerosol) device) efficiency.

[0028] Preferably, the fact that the diversion groove is in a spiral form along the axis of the atomization channel 14 means that: the diversion groove is an internal thread, and the smooth internal thread can ensure the smoothness of the flow of gas or spray and reduce the forward resistance.

[0029] Preferably, as Figure 1 , Figure 2 and Figure 3As shown, the intake passage 13 has a first intake port 101 and a jet port 102, the atomization passage 14 has a second intake port 141 and a mist outlet 103, and the jet port 102 is connected to the second intake port 141; the inner diameter of the second intake port 141 is larger than that of the jet port 102, that is, the inner diameter of the atomization passage 14 near the liquid inlet passage is larger than that of the jet port 102, so that the intake air flow in the intake passage 13 forms a negative pressure area here, automatically sucking in liquid or solid particles from the liquid inlet passage 12, facilitating the mixing of the two to form a spray.

[0030] Preferably, the diversion groove has a diversion inlet end and a diversion outlet end. The end face of the diversion inlet end is flush with the end face of the second intake port 141 to ensure that the gas flows along the established air flow route when it enters the diversion groove; the end face of the diversion outlet end is flush with the end face of the mist outlet 103 to ensure that the spray always flows along the established air flow route before reaching the mist outlet 103. Then, after the spray exits the mist outlet 103, it can always flow forward with the cross-sectional size when it exits the mist outlet 103 of the atomization passage 14.

[0031] Preferably, as Figure 1 、 Figure 2 and Figure 3 shown, the first intake port 101 has an intake port threaded interface 15, and the intake port threaded interface 15 is an internal threaded interface for connecting a gas supply device.

[0032] Preferably, as Figure 1 、 Figure 2 and Figure 3 shown, the liquid inlet passage 12 has a liquid inlet 104 and a liquid jet port 105. The liquid inlet passage 12 communicates with the atomization passage 14 through the liquid jet port 105. Liquid or solid particles enter the liquid inlet passage 12 through the liquid inlet 104 and are ejected from the liquid jet port 105 into the atomization passage 14.

[0033] Preferably, the liquid inlet passage 12 is connected to the liquid inlet internal threaded interface 16 provided on the nozzle body 11 through an external threaded interface 17 provided thereon. Threaded connection is convenient for manufacturing and disassembly.

[0034] In summary, the present utility model can maximize the atomization efficiency at the initial stage of atomization of the aerosol generator, improve the spray efficiency, ensure the stability of the spray, improve the consistency of atomization (mixing gas with liquid or solid particles to generate a spray) and spray (spray falling on the device for intercepting the spray (i.e., aerosol)), and provide the greatest guarantee for the subsequent long-term generation of stable aerosol by the aerosol generator. At the same time, the structure is simple, the processing is convenient, and the production efficiency is improved. It solves the problems of too large spray volume and inconsistent atomization and spray efficiency existing in the existing atomizing nozzles.

[0035] In combination with the embodiments of the present utility model, there is provided an aerosol generator, which includes the nozzle for an aerosol generator as described in any one of the foregoing, wherein the air inlet passage 13 is connected to a gas supply device, and the liquid inlet passage 12 is connected to a particulate matter supply device.

[0036] In the above detailed description, various features are combined in a single embodiment to simplify the present disclosure. This method of disclosure should not be construed as reflecting an intention that the embodiments of the claimed subject matter require more features than those clearly stated in each claim. On the contrary, as reflected in the appended claims, the present utility model is in a state with fewer features than all the features of the disclosed single embodiment. Therefore, the appended claims are hereby clearly incorporated into the detailed description, where each claim stands alone as a separate preferred embodiment of the present utility model.

[0037] In order to enable any person skilled in the art to implement or use the present utility model, the disclosed embodiments have been described above. For those skilled in the art, various modification methods of these embodiments are obvious, and the general principles defined herein can also be applied to other embodiments without departing from the spirit and protection scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the widest scope of the principles and novel features disclosed in this application.

[0038] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for describing the above embodiments, but those of ordinary skill in the art should recognize that each embodiment can be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the protection scope of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the coverage of this term is similar to the term "including", as explained when "including" is used as a transitional word in the claims. In addition, any term "or" used in the claims or the specification is intended to mean "non-exclusive or".

[0039] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present utility model. It should be understood that the above description is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A nozzle for an aerosol generator, characterized in that: It comprises a nozzle body (11), wherein the nozzle body (11) has an air inlet channel (13), an atomization channel (14) and a liquid inlet channel (12); The atomizing channel (14) is connected to the air inlet channel (13) in a straight line; The liquid inlet channel (12) is perpendicular to and connected to the atomization channel (14); The atomizing channel (14) has a guide groove arranged on the inner wall, and the guide groove is in a spiral form along the axial direction of the atomizing channel (14), so that the gas entering the atomizing channel (14) from the air inlet channel (13) flows along the guide groove and finally flows out.

2. The nozzle for an aerosol generator according to claim 1, characterized in that: The atomizing channel (14) further comprises an axial hollow channel located at the axis of the atomizing channel (14), and the radial depth of the guide groove along the atomizing channel (14) is greater than the radius of the axial hollow channel.

3. The nozzle for an aerosol generator according to claim 1, characterized in that: The guide groove is in a spiral form along the axial direction of the atomization channel (14), which means that the guide groove is an internal thread.

4. The nozzle for an aerosol generator according to claim 1, characterized in that: The air inlet channel (13) has a first air inlet (101) and an air jet (102); the atomization channel (14) has a second air inlet (141) and an atomization outlet (103); the air jet (102) is connected to the second air inlet (141); The inner diameter of the second air inlet (141) is greater than the inner diameter of the air injection port (102).

5. The nozzle for an aerosol generator according to claim 4, characterized in that: The guide groove has a guide inlet end and a guide outlet end, the end surface of the guide inlet end is flush with the end surface of the second air inlet (141), and the end surface of the guide outlet end is flush with the end surface of the mist outlet (103).

6. The nozzle for an aerosol generator according to claim 4, characterized in that: The first air inlet (101) is provided with an air inlet threaded interface (15), and the air inlet threaded interface (15) is an internal threaded interface.

7. The nozzle for an aerosol generator according to claim 1, characterized in that: The liquid inlet channel (12) has a liquid inlet port (104) and a liquid spray port (105), and the liquid inlet channel (12) is connected to the atomization channel (14) through the liquid spray port (105).

8. The nozzle for an aerosol generator according to claim 7, characterized in that: The liquid inlet channel (12) is connected to the liquid inlet internal thread interface (16) provided on the nozzle body (11) via an external thread interface (17) provided thereon.

9. An aerosol generator, characterized in that: It comprises a nozzle for an aerosol generator as claimed in any one of claims 1 to 8, wherein the air inlet channel (13) is connected to an air supply device, and the liquid inlet channel (12) is connected to a particle supply device.

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