Atomizer and electronic atomization device

Abstract

An atomizer (100) and an electronic atomization device (200). The atomizer (100) comprises a housing (10), a flexible support (20), an atomization element (30) and a first supporting portion (110). A liquid storage cavity (101) for storing a liquid substrate is provided in the housing (10); the flexible support (20) is accommodated in the housing (10), and is provided with a liquid inlet (201), which is in communication with the liquid storage cavity (101); the atomization element (30) is configured to atomize the liquid substrate from the liquid storage cavity (101) so as to generate an aerosol, and comprises a porous matrix (31) and a heating element (31) bonded to the porous matrix (31), the porous matrix (31) being provided with a liquid absorption surface (311), which is configured to receive the liquid substrate, the porous matrix (31) being mounted on the flexible support (20), and the liquid absorption surface (311) facing the liquid inlet (201) and being in communication with the liquid storage cavity (101) by means of the liquid inlet (201); and the first supporting portion (110) is positioned on the side of the flexible support (20) that faces away from the porous matrix (31), and is configured to provide support in the direction of the porous matrix (31), such that part of the flexible support (20) is pressed against the liquid absorption surface (311) of the porous matrix (31). The first supporting portion (110) enables the flexible support (20) to form a sealing hard support at the liquid absorption surface (311), thereby preventing liquid leakage.

Description

Atomizers and electronic atomization devices

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 21, 2023, with application number 202323516885.4, entitled “Atomizer and Electronic Atomization Device,” the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of electronic atomization, and in particular to an atomizer and an electronic atomization device. Background Art

[0004] An electronic atomization device usually includes an atomizer and a power supply mechanism. Driven by the power supply mechanism, the atomizer can heat and atomize the stored liquid matrix through a porous ceramic body equipped with a heating element to generate an aerosol for the user to inhale.

[0005] Currently, the more common atomizers usually use a soft rubber structure to support the porous ceramic body. However, considering the problem of difficulty in liquid discharge caused by the bubbles adsorbed by the soft rubber and accumulated at the ceramic liquid inlet, as well as the possible oil leakage due to the poor sealing performance of the soft support, the user experience is significantly affected.

[0006] Application Contents

[0007] The embodiments of the present application provide an atomizer and an electronic atomization device to solve the technical problems caused by the current soft rubber support parts easily absorbing bubbles and hindering liquid from flowing down and having poor sealing performance.

[0008] A nebulizer comprises: a shell having a liquid storage chamber for storing a liquid matrix; a flexible bracket accommodated in the shell, the flexible bracket having a liquid inlet, the liquid inlet being connected to the liquid storage chamber; an atomizing element for atomizing the liquid matrix from the liquid storage chamber to generate an aerosol, the atomizing element comprising a porous matrix and a heating element coupled to the porous matrix, the porous matrix having a liquid absorption surface for receiving the liquid matrix, the porous matrix being mounted on the flexible bracket, the liquid absorption surface facing the liquid inlet and being connected to the liquid storage chamber through the liquid inlet; and a first supporting portion positioned on a side of the flexible bracket facing away from the porous matrix, the first supporting portion being used to provide support in a direction toward the porous matrix so as to press a portion of the flexible bracket against the liquid absorption surface of the porous matrix.

[0009] In one embodiment, at least a portion of the first supporting portion protrudes toward the atomizing element relative to the inner surface of the housing.

[0010] In one embodiment, a hollow tube for defining a mist guide channel is provided in the housing, and at least a portion of the flexible bracket is located between the hollow tube and the first support portion.

[0011] In one embodiment, the atomizer further includes a base and a conductive electrode disposed on the base, the conductive electrode is supported on the other side of the porous matrix away from the liquid absorption surface, and the first supporting portion extends substantially parallel to the conductive electrode.

[0012] In one embodiment, the base is further provided with a second supporting portion for at least partially supporting the flexible bracket, and the first supporting portion and the second supporting portion are correspondingly located at the upper and lower sides of the liquid inlet.

[0013] In one embodiment, the first support portion is a part of the housing, and the support portion protrudes from the inner wall of the housing toward the central axis of the housing.

[0014] In one embodiment, the first supporting portion corresponds to the center position of the liquid absorbing surface in the width direction; and / or the first supporting portion extends from the liquid inlet to the liquid storage cavity.

[0015] In one embodiment, a portion of the first supporting portion is connected between the outer wall of the hollow tube and the inner wall of the shell.

[0016] In one embodiment, the first support portion includes an annular portion sleeved on the outer wall of the hollow tube and a support arm extending from the annular portion toward the liquid inlet, and the support arm presses a portion of the flexible bracket onto the liquid absorption surface of the porous matrix.

[0017] In one embodiment, the support arm corresponds to the center position of the liquid absorbing surface in the width direction; and / or the annular portion is located in the liquid storage cavity.

[0018] In one embodiment, the first supporting portion extends from the hollow tube toward the flexible bracket, and a distance is maintained between the first supporting portion and the inner wall of the shell.

[0019] In one embodiment, the first support portion is at least partially inserted into the flexible bracket.

[0020] An embodiment of the present application further provides an electronic atomization device, which includes the atomizer described in any of the above embodiments and a power supply mechanism for providing electrical energy to the atomizer.

[0021] The atomizer provided in the above embodiment, by providing a rigid first support portion, presses a portion of the flexible support against the liquid absorption surface of the porous substrate, thereby forming a sealed rigid support at the liquid absorption surface, thereby preventing oil leakage. Furthermore, the rigid first support portion extends from the liquid inlet to the liquid storage chamber, not only improving the smooth flow of liquid matrix into the liquid inlet, but also directing small bubbles generated by the porous substrate absorbing oil in a dry state away from the liquid inlet, thereby preventing the accumulation of bubbles on the liquid absorption surface and causing insufficient liquid matrix supply to the atomizing element. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings. These exemplifications do not limit the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise specified, the figures in the drawings are not limited to scale. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can derive other drawings from these drawings without inventive effort.

[0023] FIG1 is a schematic diagram of an electronic atomization device provided in an embodiment of the present application;

[0024] FIG2 is a cross-sectional view of an atomizer provided by one embodiment of the present application;

[0025] FIG3 is a perspective schematic diagram of an atomizing element provided in one embodiment of the present application;

[0026] FIG4 is a perspective schematic diagram of a housing provided by one embodiment of the present application;

[0027] FIG5 is a perspective schematic diagram of a base provided by one embodiment of the present application;

[0028] FIG6 is a cross-sectional view of a flexible stent provided in one embodiment of the present application;

[0029] FIG7 is a perspective schematic diagram of a flexible bracket provided in one embodiment of the present application;

[0030] FIG8 is a cross-sectional view of an atomizer provided by one embodiment of the present application;

[0031] FIG9 is a schematic diagram of an exploded structure of an atomizer provided in one embodiment of the present application;

[0032] FIG10 is a perspective schematic diagram of a housing provided by one embodiment of the present application;

[0033] FIG11 is a cross-sectional view of an atomizer provided in one embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0035] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0037] Figure 1 shows a schematic diagram of an electronic atomization device 200 provided in the present application, which includes an atomizer 100 and a power supply mechanism 50 that can be electrically connected to the atomizer 100. The power supply mechanism 50 and the atomizer 100 can be fixedly connected or detachably connected. The atomizer 100 is used to store a liquid matrix and atomize the liquid matrix to generate an aerosol for the user to inhale. The power supply mechanism 50 includes a controller (not shown) and a battery cell 51. The controller controls the battery cell 51 to supply power to the atomizer 100.

[0038] Figure 2 is a cross-sectional view of a nebulizer 100 provided in one embodiment of the present application. The nebulizer 100 includes a housing 10, a flexible support 20 and an atomizing element 30. The flexible support 20 and the atomizing element 30 are housed in the housing 10. The housing 10 also defines a central axis, and the inner wall of the housing 10 cooperates with the flexible support 20 to form a liquid storage chamber 101 for storing a liquid matrix and supplying liquid to the atomizing element 30. The flexible support 20 has a liquid inlet 201, which is connected to the liquid storage chamber 101. Please further refer to Figure 3. The atomizing element 30 is used to atomize the liquid matrix from the liquid storage chamber 101 to generate an aerosol. The atomizing element 30 includes a porous matrix 31 and a heating element 32 coupled to the porous matrix 31. Depending on the usage scenario, a liquid absorption surface 311 and an atomizing surface 312 are arranged on the porous matrix 31 in a transverse direction of the nebulizer 100, that is, in a direction perpendicular to the central axis. The liquid absorption surface 311 is used to receive the liquid matrix, and the heating element 32 is coupled to the atomizing surface 312 to heat and atomize the liquid matrix. The porous matrix 31 can be mounted on the flexible support 20 in an orientation such that the liquid absorption surface 311 is parallel to the central axis, wherein the liquid absorption surface 311 faces the liquid inlet 201 and is connected to the liquid storage chamber 101 through the liquid inlet 201, so that the liquid matrix in the liquid storage chamber 101 flows through the liquid inlet 201 to the liquid absorption surface 311 and then flows through the internal microporous structure of the porous matrix 31 to the atomizing surface 312. When the heating element 32 coupled to the atomizing surface 312 completes heating and atomizing the liquid matrix, the generated aerosol is released from the atomizing surface 312 and stored in the atomizing chamber 211 formed by the atomizing surface 312 and the annular inner wall of the flexible support 20.

[0039] In some embodiments, the heating element 32 is made of stainless steel, nickel-chromium alloy, iron-chromium-aluminum alloy or titanium. It is preferably formed on the atomizing surface 312 by mixing conductive raw material powder with a printing aid into a slurry, printing it according to a suitable pattern, and then sintering it, so that all or most of its surface is tightly combined with the atomizing surface 312, with high atomization efficiency, low heat loss, and anti-dry burning or greatly reduced dry burning. Optionally, the heating element 32 adopts a variety of structural forms. The heating element 32 can be a sheet-like heating element with a specific pattern formed on the atomizing surface 312, or a heating mesh, a disc-shaped heating element formed by a heating wire spiral, a heating film, or other forms; for example, the specific pattern can be a serpentine shape.

[0040] In some embodiments, the flexible support 20 is made of a flexible soft rubber material, such as silicone, rubber or thermoplastic elastomer (TPE), so the porous matrix 31 can be fixed to the liquid inlet 201 by an interference fit. It is worth noting that due to the insufficient supporting force of the soft rubber material, the sealing performance between the flexible support 20 and the porous matrix 31 is poor, and the liquid matrix may penetrate into the atomization chamber 211 through the gap between the porous matrix 31 and the flexible support 20, causing leakage. Therefore, in order to avoid the leakage problem caused by the lack of a hard support member, the atomizer 100 further includes a first support portion 110, which is positioned on the side of the flexible support 20 away from the porous matrix 31, for providing support in the direction toward the porous matrix 31 so as to press a portion of the flexible support 20 onto the liquid suction surface 311 of the porous matrix 31. Optionally, at least a portion of the first support portion 110 protrudes toward the atomization element 30 relative to the inner surface of the housing 10. The first support portion 110 is a hard component that cooperates with the soft flexible bracket 20 to achieve sealed hard support on one side of the liquid absorption surface 311 of the porous matrix 31 .

[0041] In some embodiments, a hollow tube 102 is provided in the housing 10 for defining a mist guide channel (not shown). At least a portion of the flexible bracket 20 is located between the hollow tube 102 and the first support portion 110. The first support portion 110 is against the side of the flexible bracket 20 away from the hollow tube 102 to provide hard support to improve the sealing reliability between the hollow tube 102 and the flexible bracket 20, and prevent the liquid matrix in the liquid storage chamber 101 from penetrating into the atomization chamber 211 through the gap between the hollow tube 102 and the flexible bracket 20 to cause leakage. As shown in Figures 6 and 7, the flexible bracket 20 has an air outlet 202, and the atomization chamber 211 is defined therein. One end of the air outlet 202 is connected to the hollow tube 102, and the other end is connected to the atomization chamber 211. At the same time, the end of the hollow tube 102 away from the air outlet 202 has an inhalation port 103, and the inhalation port 103 is connected to the mist guide channel. The hollow tube 102 is used to guide the aerosol stored in the atomizing chamber 211 out of the inhalation port 103 through the aerosol guide channel for inhalation by the user.

[0042] Referring to FIG4 , in the embodiment shown in FIG2 , the first support portion 110 is a portion of the housing 10 , protruding from the inner wall of the housing 10 toward the central axis of the housing 10 , and a portion of the first support portion 110 is connected between the outer wall of the hollow tube 102 and the inner wall of the housing 10 . It is worth noting that when the porous matrix 31 is in a dry state, a small amount of bubbles will be generated when it absorbs the liquid matrix. Considering the strong adsorption properties of the soft gel material, the bubbles are easily gathered near the liquid inlet 201 and hinder the normal liquid flow. In order to enable the porous matrix 31 to absorb liquid smoothly, the first support portion 110 extends from the liquid inlet 201 to the liquid storage chamber 101 . Optionally, the first support portion 110 can correspond to the center position of the liquid absorption surface 311 in the width direction. Therefore, the first support portion 110 can guide the bubbles away from the porous matrix 31 toward the liquid storage chamber 101 , while the liquid matrix in the liquid storage chamber 101 can also flow smoothly to the liquid inlet 201 through the guidance of the first support portion 110.

[0043] Referring to Figures 8 and 9, in some embodiments, the first support portion 110 includes an annular portion 1101 that is sleeved on the outer wall of the hollow tube 102 and a support arm 1102 that extends from the annular portion 1101 toward the liquid inlet 201. The support arm 1102 presses a portion of the flexible bracket 20 against the liquid absorption surface 311 of the porous matrix 31 to achieve sealed hard support. The annular portion 1101 is located within the liquid storage chamber 101, and the support arm 1102 corresponds to the center position of the liquid absorption surface 311 in the width direction. As described above, by providing the first support portion 110 that extends from the liquid absorption surface 311 to the liquid storage chamber 101, bubbles generated when the porous matrix 31 absorbs liquid can be guided by the first support portion 110 in a direction away from the liquid inlet 201, and the first support portion 110 can also drain the liquid matrix in the liquid storage chamber 101 to the liquid inlet 201.

[0044] 10 and 11 , in some embodiments, a first support portion 110 extends from the hollow tube 102 toward the flexible support 20, with a distance maintained between the first support portion 110 and the inner wall of the housing 10. The first support portion 110 can be positioned on a side of the flexible support 20 facing away from the porous substrate 31 of the atomizing element 30, and is configured to provide support toward the porous substrate 31, thereby pressing a portion of the flexible support 20 against the liquid absorbing surface 311 of the porous substrate 31.

[0045] In another embodiment, the first support portion 110 may be at least partially inserted into the flexible bracket 20 to press a portion of the flexible bracket 20 onto the liquid suction surface 311 or the hollow tube 102 to improve sealing reliability.

[0046] In some embodiments, as shown in FIG5 , the atomizer 100 further includes a base 40 for supporting the flexible support 20 . The base 40 is housed within the housing 10 , connected to the flexible support 20 , and covers the open end of the housing 10 . The base 40 defines an electrode receptacle 44 , into which the conductive electrode 60 (see FIG9 ) of the atomizer 100 is inserted, with the first support portion 110 extending substantially parallel to the conductive electrode 60 . The conductive electrode 60 is supported on the other side of the porous substrate 31 away from the liquid absorption surface 311 , allowing the atomizing element 30 to receive electrical energy and heat and atomize the liquid matrix to produce an aerosol for the user. The base 40 includes a ventilation column 41 , which is disposed substantially parallel to the liquid absorption surface 311 of the porous substrate 31 and can be fixedly mounted on the base 40 or formed as part of the base 40 . Further referring to FIG6 and FIG7 , the flexible support 20 defines a ventilation receptacle 22 for accommodating at least a portion of the ventilation column 41 . By inserting the ventilation column 41 into the ventilation socket 22, the flexible bracket 20 and the base 40 can be fixedly connected. Among them, the ventilation socket 22 wraps the outer surface of the ventilation column 41, so that a ventilation channel (not marked) is defined between the outer surface of the ventilation column 41 and the inner surface of the ventilation socket 22. Since the atomizing element 30 consumes the liquid matrix in the liquid storage chamber 101, the air pressure in the liquid storage chamber 101 will continue to decrease. The ventilation channel is used to provide air to enter the liquid storage chamber 101 to alleviate or eliminate the air pressure difference between the inside and outside of the liquid storage chamber 101, to avoid the air pressure difference preventing the liquid matrix from entering the porous matrix 31 from the liquid absorption surface 311, and to avoid the air in the atomizing chamber 211 from reversely osmotic to the liquid storage chamber 101 through the porous matrix 31, resulting in gas-liquid contact at the liquid absorption surface 311 to form bubbles that block the liquid matrix from entering the porous matrix 31.

[0047] In an optional example, the ventilation channel includes at least one air guide groove 410 located on the side of the ventilation column 41, and the air guide groove 410 and the inner surface of the ventilation socket 22 enclose the ventilation channel. In some examples, the air guide groove 410 extends linearly or curvedly along the longitudinal direction of the ventilation column 41 on the outer surface of the ventilation column 41, so that the air guide groove 410 connects the liquid storage chamber 101 and the atomization chamber 211 to dynamically adjust the air pressure in the liquid storage chamber 101. Optionally, the air guide groove 410 has an appropriate width or depth dimension to form a capillary effect, and the ventilation column 41 is made of a hard material such as plastic to maintain the air inlet cross-sectional area of ​​the air guide channel at a basically stable size. When the air pressure in the liquid storage chamber 101 is too low, driven by the internal and external pressure difference, the air in the atomizing chamber 211 can enter the liquid storage chamber 101 through the ventilation channel to replenish it, thereby reducing the negative pressure inside the liquid storage chamber 101 and avoiding the poor liquid flow due to the low air pressure in the liquid storage chamber 101. Due to capillary action, the air guide groove 410 can prevent the liquid matrix in the liquid storage chamber 101 from leaking through the air guide groove 410 to a certain extent. At the same time, the air guide groove 410 can retain a small amount of liquid matrix from the liquid storage chamber 101. When the air pressure in the liquid storage chamber 101 is too high due to reasons such as increased temperature, the liquid matrix can enter the ventilation channel to reduce the pressure in the liquid storage chamber 101, thereby avoiding leakage of the liquid storage chamber 101 due to excessive internal air pressure.

[0048] In some embodiments, because the flexible support 20 is made of a flexible material, at least a portion of the flexible support 20 can provide a circumferentially sealed connection between the housing 10 and the base 40 to prevent leakage of the liquid matrix within the liquid storage chamber 101. As shown in FIG7 , a sealing rib 23 is provided around the outer wall of the flexible support 20. The sealing rib 23 is elastically pressed against the inner wall of the housing 10 to achieve a sealed fit between the flexible support 20 and the housing 10. In an optional example, a sealing surface 24 can also be provided around the outer wall of the flexible support 20 to maintain a sealed engagement with the inner wall of the housing 10.

[0049] In some embodiments, as shown in FIG5 , the base 40 includes a mounting portion 42 and an annular wall 43 extending from the mounting portion 42 toward the flexible support 20. Referring further to FIG6 , an annular groove 25 is defined on the side of the flexible support 20 facing the base 40. The mounting portion 42 is fixedly connected to the housing 10 by inserting the annular wall 43 into the annular groove 25. Optionally, the portion of the annular wall 43 located on the same side as the first support portion 110 is defined as a second support portion 420, which is configured to at least partially support the flexible support 20. The first support portion 110 and the second support portion 420 are correspondingly located on the upper and lower sides of the liquid inlet 201, i.e., both are located on the side away from the conductive electrode 60, and provide lateral support for the flexible support 20 in a direction perpendicular to the central axis. The first support portion 110 and the second support portion 420 cooperate with each other on the upper and lower sides of the liquid inlet 201 to ensure a seal between the flexible support 20 and the liquid aspiration surface 311.

[0050] In some embodiments, please refer to Figure 5. An air inlet 45 is further provided on the base 40. The air inlet 45 is connected to the atomizing chamber 211, and the air inlet 45 is coaxially arranged with the air outlet 202 of the flexible bracket 20. Among them, the projections of the atomizing element 30 and the air inlet 45 in a plane perpendicular to the central axis do not overlap with each other, so that the air flow channel (not marked) between the air inlet 45 and the air outlet 202 is a straight channel, thereby avoiding the air flow channel from being blocked by the atomizing element 30, forming an air flow dead angle area. Similarly, the atomizing surface 312 of the atomizing element 30 is substantially parallel to the air flow channel, thereby eliminating the turning structure in the air flow channel. Therefore, the air flow channel can smoothly pass through the atomizing chamber 211, and at the same time, the aerosol generated by the atomizing element 30 is promptly and fully derived, thereby effectively reducing the formation of macromolecular particles in the aerosol, and effectively shortening the path of the aerosol to the inhalation port 103, to ensure that the aerosol can enter the user's mouth with a better taste, significantly improving the user experience.

[0051] Different from the prior art, the present application discloses an electronic atomization device 200 and its atomizer 100. By limiting the use of a hard support member in the atomizer 100, a portion of the flexible bracket 20 made of soft rubber material is pressed on the liquid absorption surface 311 of the porous matrix 31, so that the support member and the flexible bracket 20 cooperate on one side of the liquid absorption surface 311 to form a sealed hard support, so as to improve the sealing support performance at the liquid inlet 201, which is conducive to preventing the occurrence of oil leakage. At the same time, the first support part 110 extends from the vicinity of the liquid inlet 201 to the liquid storage chamber 101, which can guide the liquid in the liquid storage chamber 101 and the bubbles generated by the liquid absorption of the porous matrix 31.

[0052] It should be noted that the above description is only used to illustrate the technical solutions of the present application. The present application can also be implemented in many different forms and is not limited to the embodiments described in this description. These embodiments are not intended to be additional limitations on the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the description of the present application; further, for ordinary technicians in this field, they can modify or replace the technical solutions described in the above embodiments, and all these modifications and replacements do not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. An atomizer, characterized in that: include: A housing having a liquid storage cavity for storing a liquid matrix; A flexible bracket is accommodated in the shell, and the flexible bracket has a liquid inlet, and the liquid inlet is connected to the liquid storage cavity; an atomizing element, used for atomizing the liquid matrix from the liquid storage chamber to generate an aerosol, the atomizing element comprising a porous matrix and a heating element combined with the porous matrix, the porous matrix having a liquid absorption surface for receiving the liquid matrix, the porous matrix being mounted on the flexible support, the liquid absorption surface facing the liquid inlet and being connected to the liquid storage chamber through the liquid inlet; as well as The first supporting portion is positioned on a side of the flexible support away from the porous matrix, and is used to provide support in a direction toward the porous matrix so as to press a portion of the flexible support onto the liquid absorption surface of the porous matrix.

2. The atomizer according to claim 1, characterized in that At least a portion of the first supporting portion protrudes toward the atomizing element relative to the inner surface of the housing.

3. The atomizer according to claim 1, characterized in that A hollow tube for defining a mist guiding channel is disposed in the shell, and at least a portion of the flexible bracket is located between the hollow tube and the first supporting portion.

4. The atomizer according to claim 1, characterized in that The atomizer further comprises a base and a conductive electrode arranged on the base, the conductive electrode is supported on the other side of the porous matrix away from the liquid absorption surface, and the first supporting portion extends substantially parallel to the conductive electrode.

5. The atomizer according to claim 4, characterized in that The base is also provided with a second supporting portion for at least partially supporting the flexible bracket, and the first supporting portion and the second supporting portion are correspondingly located at the upper and lower sides of the liquid inlet.

6. The atomizer according to any one of claims 1 to 5, characterized in that The first supporting portion is a part of the housing, and the first supporting portion protrudes from an inner wall of the housing toward a central axis of the housing.

7. The atomizer according to any one of claims 1 to 5, characterized in that The first supporting portion corresponds to the center position of the liquid absorbing surface in the width direction; and / or The first supporting portion extends from the liquid inlet to the liquid storage cavity.

8. The atomizer according to claim 3, characterized in that A portion of the first supporting portion is connected between an outer wall of the hollow tube and an inner wall of the housing.

9. The atomizer according to claim 3, characterized in that: The first supporting portion includes an annular portion sleeved on the outer wall of the hollow tube and a supporting arm extending from the annular portion toward the liquid inlet, and the supporting arm presses a portion of the flexible support onto the liquid absorption surface of the porous matrix.

10. The atomizer according to claim 9, characterized in that The support arm corresponds to the center position of the liquid absorbing surface in the width direction; and / or The annular portion is located in the liquid storage cavity.

11. The atomizer according to claim 3, characterized in that The first supporting portion extends from the hollow tube toward the flexible bracket, and a distance is maintained between the first supporting portion and an inner wall of the shell.

12. The atomizer according to claim 11, characterized in that The first support portion is at least partially inserted into the flexible bracket.

13. An electronic atomization device, characterized in that: The electronic atomization device comprises the atomizer according to any one of claims 1 to 12, and a power supply mechanism for providing electrical energy to the atomizer.

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