WO2023123402A1

WO2023123402A1 - Atomization core and atomization device

Info

Publication number: WO2023123402A1
Application number: PCT/CN2021/143810
Authority: WO
Inventors: 陈平
Original assignee: 深圳市华诚达精密工业有限公司
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-07-06

Abstract

Provided in the present utility model is an atomization core, comprising a heating body and a liquid conduction body, wherein the heating body comprises a heating portion for generating heat during powering on, and electric connection portions which are connected to the heating portion and configured to transmit current to the heating portion; a penetrating atomization air channel is provided in the liquid conduction body, and comprises a head section, a middle section and a tail section, which sequentially communicate with one another; the heating portion is arranged on an inner wall of the middle section in a manner of making contact with the liquid conduction body; the electric connection portion extends out of the liquid conduction body; the radial size of the middle section is less than those of the head section and the tail section; and the length of the heating portion is less than or equal to that of the middle section. Further provided is an atomization device, comprising a housing, an electrode and the atomization core. According to the atomization core and the atomization device, due to the radial size of the middle section of the atomization air channel being less than those of the head section and the tail section, the flow speeds of an airflow in the atomization air channel are different, such that the high temperature in an atomization area in an atomization process can be rapidly taken away by the airflow flowing through the atomization area, and thus a burnt core caused by the high temperature in the atomization area is not easily generated.

Description

Atomizing core and atomizing device

technical field

The utility model relates to the technical field of atomization, in particular to an atomization core and an atomization device.

Background technique

Referring to Fig. 1, the atomizing core 4, as the core part of the atomizer, usually includes a conductive liquid 42 and a heating sheet 41, which are buried on the surface of the porous ceramic to form a heating atomizing area.

Most of the cylindrical columnar liquid guides 42 in the prior art are simple straight tubes, and the heating sheet 41 is located in the middle of the atomizing air passage 421 of the guide liquid 42. The main function of the guide liquid 42 is to conduct the liquid 42 to the heating sheet 41 for heating For atomization, one end of the empty channel enters the air, and the other end outputs the air, taking out the aerosol generated by heating. After using such atomizing core 4 for a period of time, there will be a problem that the temperature difference of the guide liquid 42 is large The problem.

After research, it is found that the reason for the above problems is that the height of the porous ceramic is much larger than the heating atomization area, the atomization air channel 421 of the guide liquid 42 is a simple straight-through type, and the wall thickness of the atomization air channel 421 is uniform. The airflow velocity is the same everywhere, but during the atomization process, the heat is mainly generated in the heating atomization area where the heating sheet 41 is located, and the heat is conducted from the atomization area to the air inlet and outlet, and the atomization air channel 421 enters The air end has a better heat dissipation effect and a lower temperature due to the entry of lower temperature external airflow; the airflow reaching the air outlet has been heated by the heating sheet 41 in the atomizing air channel 421, and the temperature is higher, so that the airflow at the air outlet has a better heat dissipation effect. Poor, high temperature. As a result, the temperature difference of the guide liquid 42 is relatively large (the temperature at the inlet end of the atomizing air channel 421 is relatively low, and the temperature at the outlet end is relatively high), and the problem of core burnt is likely to occur at the parts with higher temperatures.

In addition, the design of the air flow with the same wall thickness of the guiding liquid 42 and the same flow rate of the atomizing air channel 421 will also cause problems-the heat generated in the atomizing area where the heating sheet 41 is located is conducted to the gas outlet and the inlet port faster, The heat loss in the atomization area is fast, and the heat utilization rate is low.

technical problem

The technical problem to be solved by the utility model is to provide an improved atomizing core and an atomizing device in view of the above defects in the related art.

technical solution

The technical solution adopted by the utility model to solve its technical problems includes: providing an atomizing core, including a heating element and a conductive liquid, the heating element includes a heating part that generates heat when energized, and a heating part connected to the heating part. The heating part is an electrical connection part for transmitting current, and the conductive liquid is provided with a through atomizing air channel, and the atomizing air channel includes a head section, a middle section and a tail section connected in sequence, and the heating part and The conductive liquid is provided on the inner wall of the middle section in contact, and the electrical connection part extends to the outside of the conductive liquid;

The radial dimension of the middle section is smaller than the radial dimension of the head section and the tail section;

The length of the heating portion is less than or equal to the length of the middle section.

Preferably, the wall thickness of the middle section of the guiding liquid is greater than the wall thickness of the tail section and the head section.

Preferably, the inner wall of the middle section transitions gently or abruptly to the inner walls of the head section and the tail section.

Preferably, the inner wall of the middle section transitions smoothly to the inner wall of one of the head section and the tail section and abruptly transitions to the inner wall of the other.

Preferably, the gentle transition is an oblique transition of the inner wall of the middle section, and the abrupt transition is a stepped transition of the inner wall of the middle section.

Preferably, the atomizing core includes a support tube, and the support tube is provided with a through air channel, and the two ends of the atomizing air channel outside the guiding liquid are respectively facing the support tube. both ends of the tube.

Preferably, the radial dimension of the atomizing air passage is smaller than the radial dimension of the air passage. , the side wall of the support tube is provided with a liquid inlet hole through the inside and outside leading to the guide liquid, for the liquid outside the atomizing core to enter the guide liquid.

Preferably, the atomizing core includes a liquid-guiding cotton that is placed outside the guiding liquid and located between the guiding liquid and the support tube, and the liquid-guiding cotton is arranged at the position of the liquid inlet hole, so as to Make the liquid outside the atomizing core pass through the liquid guiding cotton and then enter the guiding liquid.

Preferably, the heating part is embedded in the inner wall of the middle section of the atomizing air channel, and the inner wall of the middle section is provided with a plurality of protrusions, and the embedding depth of the heating part is deeper than or equal to the The position of the root of the protrusion.

The technical solutions adopted by the utility model to solve the technical problems include: providing an atomization device, including a shell, an electrode and the above-mentioned atomizing core, the shell is provided with a liquid storage chamber, an air inlet and an air outlet, and the The electrodes are arranged on the casing, one end of the electrodes is electrically connected to the electrical connection part, and the other end is used to electrically connect to an external circuit;

The liquid storage chamber is connected to the guiding liquid, the inlet channel is connected to the tail section of the atomizing air channel of the guiding liquid, and the air outlet channel is connected to the head of the atomizing air channel section, so that when the liquid in the liquid storage chamber contacts the guide liquid, the guide liquid conducts the liquid to the heat generating part to be heated to generate aerosol, and the external air flow passes through the air inlet, the atomizer in sequence The air channel, and the air outlet channel carry the aerosol out of the atomizing device.

Beneficial effect

Implementing the technical solution of the utility model has at least the following beneficial effects: the atomizing core and the atomizing device have a radial dimension smaller than the radial dimension of the head section and the tail section of the atomizing air passage, so that the airflow is in the mist The flow velocity of the gasification channel will be different. According to the fact that when the fluid passes through the pipe body, the flow velocity is fast at the position where the cross section of the pipe body is small. The speed is greater than the speed of the tail section and the head section, so that the high temperature in the atomization area can be quickly taken away by the air flow passing through during the atomization process, so that the atomization area can dissipate heat better, and the atomization area is not easy to be damaged by high temperature A paste core is produced.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the practical For some novel embodiments, those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is an axial sectional view of an atomizing core in the background technology.

Fig. 2 is a perspective view of an atomizing core according to an embodiment of the present invention.

Fig. 3 is a perspective view of a heating element of the atomizing core in Fig. 2 .

Fig. 4 is an axial cross-sectional view of the guide liquid of the atomizing core in Fig. 2 .

Fig. 5 is a cross-sectional view of the atomizing core in Fig. 2 along the axial direction.

Fig. 6 is a top view of an atomizing core in another embodiment of the present invention.

Fig. 7 is a cross-sectional view of the atomizing core in Fig. 6 cut along the radial direction.

Fig. 8 is an axial sectional view of the atomizing core according to the third embodiment of the present invention.

Fig. 9 is a cross-sectional view of the atomizing core in the fourth embodiment of the present invention along the axial direction.

Fig. 10 is an axial sectional view of the atomizing core according to the fifth embodiment of the present invention.

Fig. 11 is a perspective view of an atomizing device according to an embodiment of the present invention.

Fig. 12 is an exploded view of the atomizing device of Fig. 11 .

Fig. 13 is a cross-sectional view at position A-A in Fig. 11 (solid arrows indicate the direction of liquid flow, and hollow arrows indicate the direction of gas flow).

FIG. 14 is a partially enlarged view of the Q portion in FIG. 13 .

Fig. 15 is a cross-sectional view at position B-B in Fig. 11 .

The numbers in the figure indicate: the atomizing core 4 of the background technology, the heating sheet 41 of the background technology, the guide liquid 42 of the background technology, and the atomization air channel 421 of the background technology;

The atomizing core 1 of the utility model, the heating element 11, the heating part 111, the electrical connection part 112, the conductive liquid 12, the atomizing air channel 121, the head section 1211, the middle section 1212, the tail section 1213, the raised section 122, Support tube 13 , air channel 131 , liquid inlet hole 132 , fluid guide cotton 14 , casing 2 , liquid storage cavity 21 , air inlet channel 22 , air outlet channel 23 , and electrode 3 .

Embodiments of the present invention

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is described in detail with reference to the accompanying drawings. It should be understood that if the orientation or positional relationship indicated by "inner", "outer", "head" and "tail" in the text is based on the orientation or positional relationship shown in the drawings, and is constructed and operated in a specific orientation, It is only for the convenience of describing the technical solution, but does not indicate that the referred device or element must have a specific orientation, so it should not be construed as a limitation of the present invention. It should also be noted that, unless otherwise specified and limited, terms such as "connection" should be understood in a broad sense if they appear in the text, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a direct Connected, can also be indirectly connected through an intermediary, can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element, or one or more intervening elements may also be present. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. However, it will be apparent to those skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to Figures 2-5, the atomizing core 1 in an embodiment of the present invention includes a heating element 11 and a conductive liquid 12. The heating element 11 includes a heating part 111 that generates heat when it is energized and a connection for connecting the heating part 111. The electrical connection part 112 that transmits current to the heating part 111, the conductive liquid 12 is provided with a through atomizing air channel 121, the atomizing air channel 121 includes a head section 1211, a middle section 1212 and a tail section 1213 connected in sequence, the heating part 111 is arranged on the inner wall of the middle section 1212 of the atomizing air channel 121 in contact with the conductive liquid 12, and the electrical connection part 112 extends to the outside of the conductive liquid 12; wherein, the conductive liquid 12 is made of a porous material, and the so-called porous material can also be called micro There are many micropores distributed in porous materials to realize the absorption and conduction of liquids, such as porous ceramic materials;

The radial dimension D1 of the middle section 1212 is smaller than the radial dimensions D2 and D3 of the head section 1211 and the tail section 1213;

The length H1 of the heating portion 111 is less than or equal to the length H2 of the middle section 1212 , and is less than the length H3 of the atomizing air channel 121 as a whole.

Since the radial size of the middle section 1212 of the atomizing air passage 121 of the atomizing core 1 is smaller than the radial dimensions of the head section 1211 and the tail section 1213, the flow velocity of the airflow in the atomizing air passage 121 will be different, depending on the passage of the fluid. For the tube body, the flow velocity is faster at the position where the cross section of the tube body is small. The area where the heating part 111 is located in the middle section 1212 is the atomization area, and the speed of the airflow passing through the middle section 1212 where the atomization area is located is greater than that of the tail section 1213 and the head section 1211. The high speed makes the high temperature in the atomization area during the atomization process can be quickly taken away by the flowing airflow, so that the atomization area can dissipate heat better, and the atomization area is not easy to generate burnt core due to high temperature.

Preferably, the wall thickness of the middle section 1212 of the guiding liquid 12 is greater than the wall thickness of the tail section 1213 and the head section 1211 . With such a wall thickness design, there are differences in the wall thicknesses of the head section 1211, the middle section 1212 and the tail section 1213 of the conductive liquid 12, so that the heat of the middle section 1212 where the porous ceramic atomization area is located is conducted to the tail section 1213 and the head section 1211 It is slower, the heat is concentrated in the atomization area, and the heat utilization rate is higher.

Preferably, the heating part 111 of the heating element 11 is preferably in an annular shape corresponding to the inner wall of the atomizing air channel 121 , and the heating element 11 is made of conductive and heat-generating metal material.

Regarding the structure of the atomizing air channel 121 , in some embodiments, the inner wall of the middle section 1212 of the atomizing air channel 121 transitions to the inner walls of the head section 1211 and the tail section 1213 in a gentle or abrupt manner.

Regarding the structure of the atomizing air channel 121, in other embodiments, the inner wall of the middle section 1212 of the atomizing air channel 121 smoothly transitions to the inner wall of one of the head segment 1211 and the tail segment 1213, and abruptly transitions to the inner wall of the other.

For the above-mentioned embodiment of the structure of the atomizing air channel 121 , preferably, the gentle transition is the transition of the inner wall of the middle section 1212 obliquely, and the abrupt transition is the transition of the inner wall of the middle section 1212 in a stepped shape. For example, referring to the embodiment of FIG. 8 , the inner wall of the middle section 1212 of the atomizing air channel 121 transitions to the inner walls of the head section 1211 and the tail section 1213 in a stepwise mutation; referring to the embodiment of FIG. 9 , the middle part of the atomizing air channel 121 The inner wall of the section 1212 transitions obliquely and smoothly to the inner wall of the head section 1211 and the tail section 1213; referring to the embodiment of FIG. It transitions abruptly into the inner wall of the head section 1211 in a step-like manner.

Referring to Figures 12-14, preferably, the atomizing core 1 includes a support tube 13 sleeved outside the guide liquid 12, the guide liquid 12 is set in the middle of the support tube 13, and the two ends of the atomization air channel 121 are respectively facing the two ends of the support tube 13. end. The support tube 13 is provided with a through air channel 131, the support tube 13 is sleeved on the outside of the guide liquid 12, the radial size of the atomizing air channel 121 of the guide liquid 12 is smaller than the radial size of the air channel 131 of the support tube 13, the guide liquid 12 is located in the middle part of the support tube 13, and the two ends of the atomizing air channel 121 of the guide liquid 12 respectively open toward the two ends of the air channel 131 of the support tube 13, and the side wall of the support tube 13 is provided with a hole leading to the guide liquid 12 inside and outside. The liquid inlet hole 132 is used for the liquid outside the atomizing core 1 to enter the guide liquid 12 .

Referring to Figures 12-14, preferably, the atomizing core 1 includes a liquid-conducting cotton 14 sleeved outside the conducting liquid 12 and located between the conducting liquid 12 and the support tube 13, and the liquid-conducting cotton 14 is arranged at the position of the liquid inlet hole 132, The liquid outside the atomizing core 1 penetrates the liquid-conducting cotton 14 and then enters the liquid-conducting liquid 12 to play a buffering role.

Referring to Figures 6-7, the heating part 111 of the heating element 11 is embedded in the inner wall of the middle section 1212 of the atomizing air passage 121 of the guiding liquid 12, and the inner wall of the middle section 1212 is provided with a plurality of raised parts 122, and the insertion of the heating part 111 The depth position is deeper than or equal to the root position of the protrusion 122 . Each protrusion 122 is distributed along the inner wall of the atomizing air channel 121 at intervals in the circumferential direction, and each protrusion 122 extends along the direction of the atomizing air channel 121 , that is, in the same direction as the airflow.

Referring to Figures 11-15, an atomization device according to an embodiment of the present invention includes a housing 2, an electrode 3 and an atomizing core 1 according to any one of claims 1-9, and the housing 2 is provided with a liquid storage chamber 21 , the air inlet 22 and the air outlet 23, the electrode 3 is arranged on the casing 2, one end of the electrode 3 is electrically connected to the electrical connection part 112, and the other end is used to electrically connect to the external circuit;

The liquid storage chamber 21 leads to the guide liquid 12 through the liquid inlet hole 132 of the support tube 13, the inlet channel 22 communicates with one end of the support tube 13, and then communicates with the tail section 1213 of the atomizing air channel 121 of the guide liquid 12, and the air outlet channel 23 communicates with One end of the support tube 13 is further connected to the head section 1211 of the atomizing air channel 121, so that when the liquid in the liquid storage chamber 21 penetrates the liquid inlet hole 132 and the liquid guide cotton 14 contacts the guide liquid 12, the guide liquid 12 will transfer the liquid The heating part 111 conducted to the heating element 11 is heated to generate aerosol, and the airflow outside the atomizing device passes through the air inlet 22 , the atomizing air channel 121 , and the air outlet 23 to take the aerosol out of the atomizing device.

Since the atomization device adopts the above-mentioned atomization core 1, since the radial dimension of the middle section 1212 of the atomization air passage 121 is smaller than the radial dimension of the head section 1211 and the tail section 1213, the flow velocity of the airflow in the atomization air passage 121 is reduced. It will be different. According to the fact that when the fluid passes through the pipe body, the flow velocity is fast at the position where the cross-section of the pipe body is small. The area where the heat generating part 111 is located in the middle section 1212 is the atomization area, and the speed of the airflow passing through the middle section 1212 where the atomization area is located is greater than that at the tail. The speed of the section 1213 and the head section 1211 makes the high temperature in the atomization area during the atomization process can be quickly taken away by the air flow passing through, so that the atomization area can dissipate heat better, and the atomization area is not easy to generate high temperature Paste core.

And the wall thickness of the middle section 1212 of the guiding liquid 12 is greater than the wall thickness of the tail section 1213 and the head section 1211 . With such a wall thickness design, there are differences in the wall thicknesses of the head section 1211, the middle section 1212 and the tail section 1213 of the conductive liquid 12, so that the heat of the middle section 1212 where the porous ceramic atomization area is located is conducted to the tail section 1213 and the head section 1211 It is slower, the heat is concentrated in the atomization area, and the heat utilization rate is higher.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications, combinations and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

An atomizing core (1), characterized in that it includes a heating element (11) and a conductive liquid (12), the heating element (11) includes a heating part (111) that generates heat when energized and connects the heating part (111) is an electrical connection part (112) for transmitting current to the heating part (111), and the conductive liquid (12) is provided with a through atomizing air channel (121), and the atomizing air channel (121) includes a head section (1211), a middle section (1212) and a tail section (1213) connected in sequence, and the heating part (111) is provided in the middle section ( 1212) on the inner wall, the electrical connection part (112) extends outside the conductive liquid (12);

The radial dimension of the middle section (1212) is smaller than the radial dimensions of the head section (1211) and the tail section (1213);

The length of the heating part (111) is less than or equal to the length of the middle section (1212).
The atomizing core (1) according to Claim 1, characterized in that, the wall thickness of the middle section (1212) of the guiding liquid (12) is greater than that of the tail section (1213) and the head section (1211) wall thickness.
The atomizing core (1) according to Claim 1, characterized in that, the inner wall of the middle section (1212) transitions to the head section (1211) and the tail section (1213) smoothly or abruptly the inner wall.
The atomizing core (1) according to claim 1, characterized in that, the inner wall of the middle section (1212) smoothly transitions to one of the head section (1211) and the tail section (1213) The inner wall of the one, and abruptly transitions to the inner wall of the other.
The atomizing core (1) according to any one of claims 3-4, characterized in that, the gentle transition is an oblique transition of the inner wall of the middle section (1212), and the abrupt transition is the transition of the middle section ( 1212) The inner wall transitions in a stepped manner.
The atomizing core (1) according to claim 1, characterized in that, the atomizing core (1) comprises a support tube (13), and the support tube (13) is provided with a through air channel (131) , the support tube (13) is sleeved on the outside of the guide liquid (12), and the two ends of the atomizing air channel (121) respectively face the two ends of the support tube (13).
The atomizing core (1) according to claim 6, characterized in that, the radial dimension of the atomizing air passage (121) is smaller than the radial dimension of the air passage (131) and the guide liquid (12) The two ends of the atomizing air channel (121) open towards the two ends of the air channel (131) of the support tube (13), and the side wall of the support tube (13) is provided with a The liquid inlet hole (132) leading to the guiding liquid (12) is used for the liquid outside the atomizing core (1) to enter the guiding liquid (12).
The atomizing core (1) according to claim 7, characterized in that, the atomizing core (1) comprises a sleeve on the outside of the guiding liquid (12) and is located between the guiding liquid (12) and the support The liquid guide cotton (14) between the tubes (13), the liquid guide cotton (14) is set at the position of the liquid inlet hole (132), so that the liquid outside the atomizing core (1) can pass through The fluid-guiding cotton (14) then enters the fluid-guiding liquid (12).
The atomizing core (1) according to claim 1, characterized in that, the heating part (111) is embedded in the inner wall of the middle section (1212) of the atomizing air channel (121), and the middle part A plurality of protrusions (122) are arranged on the inner wall of the section (1212), and the embedding depth of the heating part (111) is deeper than or equal to the root position of the protrusions (122).
An atomizing device, characterized in that it comprises a casing (2), an electrode (3) and an atomizing core (1) according to any one of claims 1-9, the casing (2) is provided with a storage Liquid chamber (21), air inlet (22) and air outlet (23), the electrode (3) is set on the shell (2), one end of the electrode (3) is connected to the electrical connection part ( 112) Electrical connection, the other end is used for electrical connection with an external circuit;

The liquid storage chamber (21) leads to the guiding liquid (12), and the air inlet channel (22) communicates with the tail section ( 1213), the air outlet channel (23) communicates with the head section (1211) of the atomizing air channel (121), so that the liquid in the liquid storage chamber (21) contacts the guide liquid (12) At this time, the guide liquid (12) conducts the liquid to the heating part (111) for heating to generate aerosol, and the external airflow passes through the air inlet channel (22), the atomizing air channel (121), and the The outlet airway (23) takes the aerosol out of the atomization device.