Heating and atomizing device and its electronic atomizer

Abstract

The present invention discloses a heating atomization device and an electronic atomizer thereof. The heating atomization device includes a heating atomization component and a seal. The heating atomization component includes a liquid guide and a heating element. At least one first liquid inlet groove is formed at the top of the liquid guide, and at least one second liquid inlet groove is formed in the seal; a protruding part matching the first liquid inlet groove is extended and arranged at the lower part of each second liquid inlet groove, and the protruding part extends into the first liquid inlet groove, and the two are hermetically matched. The part of the first liquid inlet groove not covered by the protruding part forms a liquid inlet surface; the first liquid inlet groove, the second liquid inlet groove are communicated with the liquid storage chamber; at least the protruding part is an elastic material part, so that when the atomized liquid is consumed, the air pressure in the liquid storage chamber is less than the external air pressure, the air can push open the protruding part of the seal and enter the liquid storage chamber; the electronic atomizer includes a housing, a liquid storage chamber, an air duct and a heating atomization device; by setting the first liquid inlet groove and the protruding part, the present invention realizes air pressure balance, smooth liquid guiding and good sealing effect.

Description

Technical Field

[0001] The present invention relates to the field of electronic atomization, and particularly to a heating atomization device and its electronic atomizer. Background Art

[0002] Electronic atomization technology is a technology that evaporates atomized steam by electrically heating a liquid to its boiling point. Currently, electronic atomizers are more commonly used. With the innovative development of atomization technology, electronic atomization technology has also been applied in more other fields, such as beauty, medical, and other fields. In the field of atomization technology, the most common problem is the liquid leakage problem. Liquid leakage not only affects the user experience, but also the leaked liquid is likely to contaminate and damage electronic components and other items. In the composition structure of an electronic atomizer, since the production process of the porous ceramic liquid guiding member is high-temperature sintering, its size and shape are difficult to be very precise. Moreover, due to the characteristics of the porous ceramic liquid guiding member, its surface is relatively rough, and the size fluctuations of different batches are relatively large. Its internal porous channels are used for the transportation of atomized liquid. Therefore, in the atomizer structure, the sealing of the porous ceramic liquid guiding member part is particularly important. If the sealing effect is not good, it is very easy to cause the problem of liquid leakage. In addition, the microporous structure inside the porous ceramic liquid guiding member is fixed. As the atomized liquid is consumed, the air pressure imbalance inside and outside the liquid storage chamber will also cause the problem of unsmooth liquid guiding, which will cause the problem of burnt cores in the heating atomization device. In short, liquid leakage is a relatively fatal problem for electronic atomizers. Therefore, a reliable and perfect electronic atomizer structure needs to be developed to avoid the occurrence of this problem. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a heating atomization device and its electronic atomizer, aiming at the defects of the prior art, to improve the sealing effect of the liquid guiding member, avoid liquid leakage, make the liquid guiding of the liquid guiding member smooth, and enable smooth air exchange when a certain air pressure difference is generated inside and outside the liquid storage chamber to balance the air pressure.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a heating atomization device, including a heating atomization component and a sealing member for sealing the top of the heating atomization component. After the sealing member and the heating atomization component are assembled, they are placed in a liquid storage chamber. The heating atomization component includes a liquid guiding member and a heating element attached or embedded at the bottom of the liquid guiding member. The surface of the liquid guiding member where it is attached or embedded with the heating element forms an atomization surface. At least one first liquid inlet groove is opened at the top of the liquid guiding member, and at least one second liquid inlet groove matching the first liquid inlet groove is opened on the sealing member;

[0005] A protruding portion matching the first liquid inlet groove is extended and provided at the lower part of each second liquid inlet groove. The protruding portion extends into the first liquid inlet groove, and the two are in sealing cooperation. The part of the first liquid inlet groove not covered by the protruding portion forms a liquid inlet surface; the first liquid inlet groove, the second liquid inlet groove are communicated with the liquid storage chamber;

[0006] At least the protruding part of the seal is made of an elastic material, so that when the atomized liquid is consumed and the air pressure in the liquid storage chamber is less than the external air pressure, the external air can push open the protruding part of the seal and enter the liquid storage chamber.

[0007] Further, in the heating atomization device, preferably, a fitting groove is formed in the gap between the lower part of the seal and the protruding part, the outer side wall of the first liquid inlet groove of the liquid guide is fitted in the fitting groove, and the protruding part is attached to the side wall of the first liquid inlet groove of the liquid guide to seal the gap between the first liquid inlet groove of the liquid guide and the protruding part.

[0008] Further, in the heating atomization device, preferably, two first liquid inlet grooves are arranged at intervals on the top of the liquid guide, and the seal is correspondingly provided with two protruding parts, and the two protruding parts respectively extend into the two corresponding first liquid inlet grooves.

[0009] Further, in the heating atomization device, preferably, the whole seal is made of an elastic material.

[0010] Further, in the heating atomization device, preferably, the side wall of the liquid guide is concave, the top of the concave is communicated with the ventilation hole opened in the seal, and the bottom of the concave is communicated with the atomization surface of the liquid guide to form an air flow channel communicated with the outside.

[0011] Further, in the heating atomization device, preferably, the heating element includes a heating circuit and electrode connectors arranged at both ends of the heating circuit, and the heating circuit is arranged corresponding to the first liquid inlet groove.

[0012] Further, in the heating atomization device, preferably, the length of the protruding part is the same as the depth of the first liquid inlet groove, so that the protruding part completely covers the side wall of the first liquid inlet groove, and the bottom of the first liquid inlet groove is the liquid inlet surface.

[0013] Further, in the heating atomization device, preferably, the length of the protruding part is less than the depth of the first liquid inlet groove, the protruding part does not completely cover the side wall of the first liquid inlet groove, and the part of the side wall of the first liquid inlet groove not covered by the protruding part and the bottom form the liquid inlet surface.

[0014] Further, in the heating atomization device, preferably, at least one circle of sealing rings is arranged on the outer wall of the protruding part or the outer wall of the seal.

[0015] Further, in the heating atomization device, preferably, at least one support part with a porous structure extends downward from the bottom of the liquid guide.

[0016] Further, in the heating atomization device, it is preferred that the heating atomization device further includes a base, the base cooperates with the seal to seal the heating atomization assembly, the base is provided with an electrode hole and an air inlet hole, and the air inlet hole is communicated with the air flow channel.

[0017] An electronic atomizer includes a housing, a liquid storage chamber and a gas guide tube are arranged in the upper part of the housing, and the above-mentioned heating atomization device is arranged in the lower part, and the heating atomization device is communicated with the gas guide tube to the top surface of the housing.

[0018] The present invention has the following beneficial effects: For a heating atomization device provided by the present invention, by providing a first liquid inlet groove at the top of the liquid guiding body, a second liquid inlet groove matching the first liquid inlet groove is provided on the seal, a protruding part extends at the lower part of the second liquid inlet groove, and the protruding part extends into the first liquid inlet groove, and the two are sealed and matched; when the atomized liquid in the liquid storage chamber is consumed, the air pressure in the liquid storage chamber is less than the external air pressure. Since the protruding part is made of a flexible elastic material, the external air can push open the protruding part of the seal and enter the first liquid inlet groove. Since the first liquid inlet groove is communicated with the liquid storage chamber, air exchange is realized, so that the air pressure inside and outside the liquid storage chamber is balanced, so as to ensure the smooth liquid guiding of the liquid guiding body; when the pressure difference between the air pressure in the liquid storage chamber and the external air pressure is not large, the hydraulic pressure of the atomized liquid from the liquid storage chamber is greater than the external atmospheric pressure, and the liquid pressure makes the protruding part receive a radially outward force, so that the protruding part better fits the groove wall of the first liquid inlet groove, so as to better seal. Further, the liquid pressure from the liquid storage chamber will act more concentratedly on the liquid inlet surface of the liquid guiding body, making the liquid supply on the liquid inlet surface more sufficient during operation, and further making the liquid supply of the liquid guiding body smoother. The liquid pressure on the protruding part makes the sealing effect better and it is not easy to produce liquid leakage. Description of the Drawings

[0019] The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0020] Figure 1 is a cross-sectional view of the first embodiment of the heating atomization device in Embodiment 1 of the present invention (when the protruding part is not lifted);

[0021] Figure 2 is a cross-sectional view of the second embodiment of the heating atomization device in Embodiment 1 of the present invention (when the protruding part is not lifted);

[0022] Figure 3 is a cross-sectional view of the first embodiment of the heating atomization device in Embodiment 1 of the present invention (when the protruding part is lifted);

[0023] Figure 4 is a cross-sectional view of the first embodiment of the heating atomization device in Embodiment 1 of the present invention (including the base and when the protruding part is not lifted);

[0024] Figure 5 is Figure 4 an exploded view of the three-dimensional structure of;

[0025] Figure 6 is a sectional view of the seal of the heating atomization device in Embodiment 1 of the present invention;

[0026] Figure 7 is Figure 6 the three-dimensional structure diagram of;

[0027] Figure 8 is a sectional view of the heating atomization assembly of the heating atomization device in Embodiment 1 of the present invention;

[0028] Figure 9 is Figure 8 the three-dimensional structure diagram of;

[0029] Figure 10 is a front sectional view of the electronic atomizer in Embodiment 2 of the present invention;

[0030] Figure 11 is a side sectional view of the electronic atomizer in Embodiment 2 of the present invention;

[0031] Figure 12 is a partial sectional view of the electronic atomizer in Embodiment 2 of the present invention;

[0032] Figure 13 is the three-dimensional structure diagram of the electronic atomizer in Embodiment 2 of the present invention. Detailed implementation manners

[0033] For a clearer understanding of the technical features, objectives, and effects of the present invention, the detailed implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0034] A component is referred to as "fixed to" or "arranged on" another component, and it can be directly or indirectly located on that another component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that another component.

[0035] The orientations or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positions shown in the drawings.

[0036] The terms "axial direction" and "radial direction" take the length direction of the entire device or component as the "axial direction", and the direction perpendicular to the axial direction as the "radial direction".

[0037] The terms "first", "second", etc. are only used for the purpose of convenience in description, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0038] The above terms are only for convenience in description and should not be construed as limitations to the technical solution.

[0039] Example 1, as Figures 1 - 9 shown, a heating atomizing device 70 includes a heating atomizing component 20 and a seal 30 that seals the top of the heating atomizing component 20. After the seal 30 and the heating atomizing component 20 are assembled, they are placed in a liquid storage chamber. The heating atomizing component 20 includes a liquid guide 1 and a heating element 2 attached or embedded at the bottom of the liquid guide 1. The surface where the liquid guide 1 is attached or embedded with the heating element 2 forms an atomizing surface 11. At least one first liquid inlet groove 12 is opened at the top of the liquid guide 1, and at least one second liquid inlet groove 31 that cooperates with the first liquid inlet groove 12 is opened on the seal 30; a protrusion 32 that matches the first liquid inlet groove 12 is extended and provided at the lower part of each second liquid inlet groove 31. The protrusion 32 extends into the first liquid inlet groove 12, and the two are in sealing cooperation. The part of the first liquid inlet groove 12 not covered by the protrusion 32 forms a liquid inlet surface 13; the first liquid inlet groove 12, the second liquid inlet groove 31 are communicated with the liquid storage chamber.

[0040] The liquid guide 1 is provided with a ventilation channel, and the ventilation channel is communicated with a ventilation hole 33 opened on the seal 30 to form an air flow channel communicated with the outside, and the air flow channel is communicated with the ventilation hole 33; at least the protrusion 32 in the seal 30 is an elastic material piece, so that when the atomized liquid is consumed and the air pressure in the liquid storage chamber is less than the air pressure in the air flow channel, the air in the air flow channel can push open the protrusion 32 of the seal 30 and enter the liquid storage chamber.

[0041] The implementation process of the heating atomizing device 70: During operation, the circuit of the heating atomizing component 20 is turned on, the heating element 2 emits heat, and the atomized liquid in the liquid storage chamber enters the first liquid inlet groove 12 of the liquid guide 1 through the second liquid inlet groove 31 and the protrusion 32 of the seal 30, is guided to the atomizing surface 11 of the liquid guide 1 through the liquid inlet surface 13, and is atomized by the heating element 2 at the atomizing surface 11 to form atomized steam. The atomized steam and air form an aerosol, as Figure 3As shown, when the atomized steam in the liquid storage chamber is consumed to a certain extent, causing the air pressure in the liquid storage chamber to be less than that in the air flow channel, since the air flow channel is connected to the outside, it can be understood that the air pressure in the liquid storage chamber is less than the external air pressure. Since the protruding part 32 is made of a flexible elastic material, the external air can push open the protruding part 32 of the seal 30 and enter the first liquid inlet groove 12. Since the first liquid inlet groove 12 and the second liquid inlet groove 31 are connected to the liquid storage chamber, the air enters the first liquid inlet groove 12 and then enters the liquid storage chamber, thus realizing air exchange, making the air pressure inside and outside the liquid storage chamber balanced, and further enabling the liquid guide 1 to guide the liquid smoothly. After gas exchange, the difference in air pressure between the liquid storage chamber and the outside is not large. The hydraulic pressure of the atomized liquid from the liquid storage chamber is greater than the external atmospheric pressure. The liquid pressure causes the inner side wall of the protruding part 32 to receive a radially outward force, making the protruding part 32 fit better with the groove wall of the first liquid inlet groove 12, thereby achieving better sealing. Further, the liquid pressure from the liquid storage chamber acts more concentratedly on the liquid inlet surface 13 of the liquid guide 1, making the liquid supply on the liquid inlet surface 13 more sufficient and smoother, and the formed atomized steam denser.

[0042] In the present invention, a first liquid inlet groove 12 is opened at the top of the liquid guide 1, a second liquid inlet groove 31 matching the first liquid inlet groove 12 is opened on the seal 30, a protruding part 32 extends downward from the second liquid inlet groove 31, and the protruding part 32 extends into the first liquid inlet groove 12, and the two are in sealing cooperation; when the atomized liquid in the liquid storage chamber is consumed, causing the air pressure in the liquid storage chamber to be less than that in the air flow channel, that is, the air pressure in the liquid storage chamber is less than the external air pressure. Since the protruding part 32 is made of a flexible elastic material, the external air can push open the protruding part 32 of the seal 30 and enter the first liquid inlet groove 12. Since the first liquid inlet groove 12 is connected to the liquid storage chamber, it can be understood that the external air enters the liquid storage chamber, thus realizing smooth air exchange, making the air pressure inside and outside the liquid storage chamber balanced, so as to achieve smooth liquid guiding of the liquid guide 1; when the difference in air pressure between the liquid storage chamber and the outside is not large, the hydraulic pressure of the atomized liquid from the liquid storage chamber will be greater than the external atmospheric pressure. The liquid pressure causes the protruding part 32 to receive a radially outward force, making the protruding part 32 fit better with the groove wall of the first liquid inlet groove 12, thereby achieving better sealing. Further, the liquid pressure from the liquid storage chamber will act more concentratedly on the liquid inlet surface 13 of the liquid guide 1, making the liquid supply on the liquid inlet surface 13 more sufficient during operation, and further making the liquid supply of the liquid guide 1 smoother. The liquid pressure on the protruding part 32 makes the sealing effect better and it is not easy to cause liquid leakage.

[0043] A gap is formed between the lower part of the seal 30 and the protruding part 32 to form an engaging groove 34. The outer groove wall of the first liquid inlet groove 12 of the liquid guide 1 is engaged in the engaging groove 34, and the protruding part 32 is in contact with the side wall of the first liquid inlet groove 12 of the liquid guide 1 to seal the gap between the first liquid inlet groove 12 of the liquid guide 1 and the protruding part 32. By providing the engaging groove 34, the assembly of the seal 30 and the liquid guide 1 is more convenient and rapid, and the sealing effect between the protruding part 32 and the first liquid inlet groove 12 is also better.

[0044] The first liquid inlet groove 12 provided on the liquid guide groove enables the atomized liquid to quickly reach the atomizing surface 11, accelerating the liquid guiding rate. At the same time, it is in sealed cooperation with the protruding part 32 of the seal 30, thereby realizing the gas exchange inside and outside the liquid storage chamber and achieving pressure difference balance. At the same time, the sealing effect between the seal 30 and the heating atomizing assembly 20 is also better. The first liquid inlet groove 12 can be provided with one or multiple. Correspondingly, the second liquid inlet groove 31 can be provided with one or multiple. Further, the protruding part 32 can be provided with one or multiple. It can be understood that each first liquid inlet groove 12, protruding part 32, and second liquid inlet groove 31 are provided in one-to-one correspondence. The first liquid inlet groove 12 can be of various shapes. For the convenience of implementation and the assembly and sealing with the seal 30, a circular first liquid inlet groove 12 is preferred. In a specific embodiment, two first liquid inlet grooves 12 are provided at intervals on the top of the liquid guide 1. The corresponding seal 30 is provided with two second liquid inlet grooves 31. A protruding part 32 matching the first liquid inlet groove 12 is extended at the lower part of each second liquid inlet groove 31, that is, two protruding parts 32 are provided correspondingly. The two protruding parts 32 respectively extend into the two corresponding first liquid inlet grooves 12, and the two are in sealed cooperation. The part of each first liquid inlet groove 12 not covered by the protruding part 32 forms a liquid inlet surface 13. Each first liquid inlet groove 12, second liquid inlet groove 31 is communicated with the liquid storage chamber. The atomized liquid in the liquid storage chamber enters the liquid inlet surface 13 through the second liquid inlet groove 31, protruding part 32, and first liquid inlet groove 12, is guided to the atomizing surface 11 by the liquid inlet surface 13, and is finally atomized into atomized steam by the heat generated by the heating element 2 and mixed with the air entering the heating atomizing assembly 20 to form an aerosol.

[0045] At least the protruding part 32 in the seal 30 is made of an elastic material. It can be understood that only the protruding part 32 is made of an elastic material, and the other parts of the seal 30 are non-elastic seals 30, or the entire seal 30 is made of an elastic material. Since the seal 30 is made of a flexible elastic material, the outside air can push open the protruding part 32 of the seal 30 and enter the first liquid inlet groove 12. Since the first liquid inlet groove 12 is connected to the liquid storage chamber, it can be understood that the outside air enters the liquid storage chamber, thereby achieving smooth air exchange, making the air pressure inside and outside the liquid storage chamber balanced, so as to achieve smooth liquid conduction of the liquid guide 1; when the air pressure difference between the liquid storage chamber and the outside air is not large, the hydraulic pressure of the atomized liquid from the liquid storage chamber is greater than the outside atmospheric pressure. The liquid pressure makes the protruding part 32 of the flexible elastic material part receive a radially outward force, making the protruding part 32 better fit the groove wall of the first liquid inlet groove 12, so as to achieve better sealing. Further, the liquid pressure from the liquid storage chamber will act more concentratedly on the liquid inlet surface 13 of the liquid guide 1, making the liquid supply on the liquid inlet surface 13 more sufficient during operation, and thus making the liquid supply of the liquid guide 1 smoother. And the liquid pressure on the protruding part 32 makes the sealing effect better and is not easy to leak liquid.

[0046] Further, it is preferably that the side wall of the liquid guide 1 is concave 15, as Figure 9 shown, the top of the concave 15 is connected to the ventilation hole 33 of the seal 30, and the bottom of the concave 15 is connected to the atomizing surface 11 of the liquid guide 1 to form an air flow channel communicating with the outside. During operation, the atomized steam generated on the atomizing surface 11 flows from the bottom of the concave 15 on the side wall of the liquid guide 1 from bottom to top to the ventilation hole 33 of the seal 30 at the top, and finally flows out through the ventilation hole 33 of the seal 30.

[0047] The heating element 2 includes a heating circuit 21 for generating heat and electrode connectors 22 provided at both ends of the heating circuit 21. The electrode 90 supplies power to the heating circuit 21 through the electrode connectors 22. The heating circuit 21 is arranged corresponding to the first liquid inlet groove 12. Further preferably, the heating circuit 21 corresponding to the first liquid inlet groove 12 is denser than the heating circuit 21 at other positions of the liquid guide 1, so as to improve the atomization efficiency and make the formed atomized steam more concentrated.

[0048] As Figure 2 shown, the length of the protruding part 32 can be the same as the depth of the first liquid inlet groove 12, so that the protruding part 32 completely covers the side wall of the first liquid inlet groove 12. The bottom of the first liquid inlet groove 12 is the liquid inlet surface 13. Such a setting makes the protruding part 32 better fit the first liquid inlet groove 12, thereby making the sealing effect of the protruding part 32 on the first liquid inlet groove 12 better and not easy to leak liquid. At the same time, the hydraulic pressure of the atomized liquid in the liquid storage chamber is more concentrated on the liquid inlet surface 13 at the bottom of the first liquid inlet groove 12, making the liquid supply on the liquid inlet surface 13 more sufficient during operation, and thus making the liquid supply of the liquid guide 1 smoother; or, as Figure 1As shown, while ensuring the sealing effect between the protruding portion 32 and the first liquid inlet groove 12, the length of the protruding portion 32 is slightly less than the depth of the first liquid inlet groove 12. At this time, the protruding portion 32 does not completely cover the side wall of the first liquid inlet groove 12. The non-covered part of the side wall of the first liquid inlet groove 12 by the protruding portion 32 and the bottom form a liquid inlet surface 13. With such a setting, when the atomized liquid in the liquid storage chamber is consumed, when the air pressure in the liquid storage chamber is less than the air pressure in the air flow channel, that is, the air pressure in the liquid storage chamber is less than the external air pressure. Since the protruding portion 32 is made of a flexible elastic material and the length of the protruding portion 32 is slightly less than the depth of the first liquid inlet groove 12, the external air can more easily push open the protruding portion 32 of the seal 30 and enter the first liquid inlet groove 12. Since the first liquid inlet groove 12 is connected to the liquid storage chamber, it can be understood that the air enters the liquid storage chamber, realizing smooth air exchange, making the air pressure inside and outside the liquid storage chamber balanced, so as to realize the smooth liquid guiding of the liquid guide 1.

[0049] Furthermore, preferably, at least one circle of sealing rings 4 is provided on the outer wall of the protruding portion 32 or the outer wall of the seal 30. It can be understood that there can be one circle of sealing rings 4 provided on the outer wall of the protruding portion 32, or multiple circles of sealing rings 4 provided on the outer wall of the protruding portion 32. The purpose of providing the sealing rings 4 on the outer wall of the protruding portion 32 is to make the sealing effect between the protruding portion 32 and the first liquid inlet groove 12 better, so that it is not easy to leak liquid; there can be one circle of sealing rings 4 provided on the outer wall of the seal 30, or multiple circles of sealing rings 4 provided on the outer wall of the seal 30. The purpose of providing the sealing rings 4 on the outer wall of the seal 30 is to make the sealing effect between the outer shell of the liquid storage chamber and the seal 30 better, preventing liquid leakage from the outer wall of the seal 30.

[0050] Furthermore, preferably, at least one support portion 5 with a porous structure extends downward from the bottom of the liquid guide 1. Due to the high temperature of the heating element 2, long-term use may cause the heating element 2 to break. The setting of the support portion 5 can give a certain support strength to the liquid guide 1, extending the service life of the liquid guide 1. Secondly, since the support portion 5 has a porous structure, the support portion 5 can reabsorb the formed condensate and transport it to the bottom of the liquid guide 1, enabling the condensate to be recycled, improving the taste of the atomized steam while saving energy.

[0051] As Figures 4 - 5 shown, the heating and atomizing device 70 further includes a base 10. The base 10 cooperates with the seal 30 to seal the heating and atomizing assembly 20. The base 10 is provided with an electrode hole 101 and an air inlet hole 102. The air inlet hole 102 is connected to the air flow channel. The electrode 90 passes through the electrode hole 101 and is connected to the electrode connecting member 22 of the heating element 2, thereby supplying liquid to the heating element 2. The external air enters the heating and atomizing assembly 20 through the air inlet hole 102, mixes with the atomized steam formed on the atomizing surface 11 to form an aerosol, and flows out of the ventilation hole 33 of the seal 30 through the air flow channel.

[0052] Example 2, as Figures 10 - 13As shown in the figure, an electronic atomizer includes a housing 40. An upper part inside the housing 40 is provided with a liquid storage chamber 50, an air duct 60, and an electrode 90. A heating and atomizing device 70 in Embodiment 1 is provided in the lower part. The heating and atomizing device 70 is connected to the air duct 60 to the top surface of the housing 40. The air duct 60 is communicated with the ventilation hole 33 of the seal 30. During operation, external air enters the heating and atomizing assembly 20. The atomizing liquid in the liquid storage chamber 50 is conducted to the liquid guide 1 of the heating and atomizing device 70. The electrode 90 conducts electricity to the heating element 2. The heating element 2 generates heat to atomize the atomizing liquid into atomized steam. The atomized steam is mixed with air to form an aerosol. The aerosol flows out of the housing 40 through the air duct 60 and is finally inhaled by the user.

[0053] Other components of the electronic atomizer adopt the prior art and will not be elaborated one by one here.

Claims

1. A heating atomization device, comprising a heating atomization component (20) and a seal (30) for sealing the top of the heating atomization component (20). After the seal (30) and the heating atomization component (20) are assembled, they are placed in a liquid storage chamber. The heating atomization component (20) includes a liquid guide body (1) and a heating element (2) attached to or embedded in the bottom of the liquid guide body (1). An atomization surface (11) is formed on the surface where the liquid guide body (1) is attached to or embedded with the heating element (2). At least one first liquid inlet groove (12) is formed at the top of the liquid guide body (1), characterized in that, The seal (30) is provided with at least one second liquid inlet groove (31) that cooperates with the first liquid inlet groove (12); At the lower part of each second liquid inlet groove (31), a protruding part (32) that matches the first liquid inlet groove (12) is extended and provided. The protruding part (32) extends into the first liquid inlet groove (12), and the two are in sealing cooperation. The part in the first liquid inlet groove (12) that is not covered by the protruding part (32) forms a liquid inlet surface (13); the first liquid inlet groove (12), the second liquid inlet groove (31) are communicated with the liquid storage chamber; At least the protruding part (32) in the seal (30) is an elastic material part, so that when the atomized liquid is consumed and the air pressure in the liquid storage chamber is less than the external air pressure, the external air can push open the protruding part (32) of the seal (30) and enter the liquid storage chamber; A fitting groove (34) is formed in the gap between the lower part of the seal (30) and the protruding part (32). The outer side wall of the first liquid inlet groove (12) of the liquid guiding body (1) is fitted in the fitting groove (34), and the protruding part (32) is attached to the side wall of the first liquid inlet groove (12) of the liquid guiding body (1) to seal the gap between the first liquid inlet groove (12) of the liquid guiding body (1) and the protruding part (32).

2. The heating atomization device according to claim 1, characterized in that Two first liquid inlet grooves (12) are arranged at intervals at the top of the liquid guiding body (1), and the seal (30) is correspondingly provided with two protruding parts (32), and the two protruding parts (32) respectively extend into the two corresponding first liquid inlet grooves (12).

3. The heating atomization device according to claim 1, wherein, The whole seal (30) is an elastic material part.

4. The heating atomization device according to claim 1, wherein, The side wall of the liquid guiding body (1) is concave (15). The top of the concave (15) is communicated with the ventilation hole (33) opened in the seal (30), and the bottom of the concave (15) is communicated with the atomizing surface (11) of the liquid guiding body (1) to form an air flow channel communicated with the outside.

5. The heating atomization device according to claim 1, characterized in that, The heating element (2) includes a heating circuit (21) and electrode connectors (22) arranged at both ends of the heating circuit (21), and the heating circuit (21) is arranged corresponding to the first liquid inlet groove (12).

6. The heating atomization device according to claim 1, wherein The length of the protruding part (32) is the same as the depth of the first liquid inlet groove (12), so that the protruding part (32) completely covers the side wall of the first liquid inlet groove (12), and the bottom of the first liquid inlet groove (12) is the liquid inlet surface (13).

7. The heating atomization device according to claim 1, characterized in that, The length of the protruding part (32) is less than the depth of the first liquid inlet groove (12), the protruding part (32) does not completely cover the side wall of the first liquid inlet groove (12), and the part of the side wall of the first liquid inlet groove (12) not covered by the protruding part (32) and the bottom form the liquid inlet surface (13).

8. The heating atomization device according to claim 1, wherein, At least one circle of sealing rings (4) is arranged on the outer wall of the protruding part (32) or the outer wall of the seal (30).

9. The heating atomization device according to claim 1, wherein, At least one support part (5) with a porous structure extends downward from the bottom of the liquid guiding body (1).

10. The heating atomization device according to claim 1, wherein The heating and atomizing device further includes a base (10), the base (10) cooperates with the seal (30) to seal the heating and atomizing assembly (20), the base (10) is provided with an electrode hole (101) and an air inlet hole (102), and the air inlet hole (102) is communicated with the air flow channel.

11. An electronic atomizer, characterized in that, It includes a housing (40), a liquid storage chamber (50) and an air guide pipe (60) are arranged in the upper part of the housing (40), and the heating and atomizing device (100) described in any one of claims 1-10 is arranged in the lower part. The heating and atomizing device (100) is communicated with the air guide pipe (60) to the top surface of the housing (40).

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