Atomizer with negative pressure exhaust device and electronic cigarette
By introducing a rigid exhaust column and a microporous negative pressure exhaust device into the electronic cigarette, the problem of negative pressure in the oil storage chamber affecting the oil supply efficiency is solved, achieving stability of oil supply efficiency and preventing oil leakage, thus improving the user experience.
Patent Information
- Application Number
- CN202423322377.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-31
AI Technical Summary
During the use of e-cigarettes, the negative pressure in the oil reservoir affects the oil supply speed, resulting in a decrease in oil supply efficiency.
The atomizer is designed with a negative pressure exhaust device, which adopts a rigid exhaust column and microporous structure. The microchannel and exhaust hole balance the air pressure inside and outside the oil storage chamber, avoids the negative pressure from affecting the oil supply efficiency, and prevents oil leakage through the oil suction component.
It effectively balances the air pressure inside and outside the oil storage chamber, ensuring stable oil supply efficiency, preventing oil leakage, and improving user experience.
Smart Images
Figure CN223929497U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic atomization technology, and in particular to an atomizer with a negative pressure exhaust device and an electronic cigarette. Background Technology
[0002] An electronic cigarette (also known as an "electronic cigarette") or inhalation device is an electronic delivery system used to generate an aerosol from an atomizing matrix for a user to inhale. The atomizing matrix can be a liquid (e.g., e-liquid) stored directly within the housing or stored within the internal space of the electronic cigarette via a reservoir.
[0003] Typically, traditional e-cigarettes mainly consist of a cartridge containing an atomizing matrix and a power supply device. The cartridge has a heating or evaporation device, such as an atomizer containing an atomizing core. The user's inhalation activates the atomizing core, and the power supply device supplies power to the atomizing core, causing the atomizing matrix in the cartridge to be transformed into an aerosol for the user to inhale.
[0004] During use, as the atomizing matrix is used in the oil storage chamber, negative pressure will be generated in the oil storage chamber, which will affect the oil supply speed, and there is room for improvement. Summary of the Invention
[0005] To overcome the technical defects of the existing technology, this application provides an atomizer with a negative pressure exhaust device, including a main body, a mouthpiece portion formed in the main body, a smoke inlet in the mouthpiece portion, an oil storage chamber for accommodating the atomizing matrix formed in the main body, an atomizing core for heating and atomizing the atomizing matrix installed in the main body, and at least one rigid exhaust column for communicating with the inside and outside of the oil storage chamber installed on the main body.
[0006] In one embodiment, each of the rigid exhaust columns has a plurality of micropores, which are interconnected to form a microchannel that connects the inside and outside of the oil storage cavity.
[0007] In one embodiment, the pore size of the micropore is 3-100 μm.
[0008] In one embodiment, the rigid exhaust column has an exhaust hole extending from one end to the other.
[0009] In one embodiment, the diameter of the exhaust port is less than or equal to 700 μm.
[0010] In one embodiment, the main body includes a housing and a first sealing member. The oil storage cavity is formed inside the housing, the mouthpiece is formed at one end of the housing, and the other end of the housing is open and provided with the first sealing member. The first sealing member has a first through hole communicating with the oil storage cavity, and the rigid exhaust column is disposed in the first through hole.
[0011] In one embodiment, the end of the rigid exhaust column away from the oil storage chamber is provided with an oil-absorbing element and / or an oil storage chamber for absorbing leaking oil.
[0012] In one embodiment, the first sealing member has a base on the side opposite to the oil storage cavity, the base has a first air hole, and an atomizing channel is formed inside the atomizing core. The atomizing channel is connected to the first air hole and the smoke inlet respectively.
[0013] In one embodiment, the base is provided with an oil storage chamber, and an oil suction element is provided inside the oil storage chamber. The end of the rigid exhaust column away from the oil storage chamber abuts against the oil suction element.
[0014] In one embodiment, the first sealing member has a through hole, one end of the atomizing core is sealed and installed in the through hole, and the other end of the atomizing core is sealed and connected to the mouthpiece through the second sealing member.
[0015] In one embodiment, the rigid exhaust column is made of glass, ceramic, mica, or quartz.
[0016] In one embodiment, the atomizing core includes an atomizing tube, inside which is a porous hard oil guide block. One side wall of the porous hard oil guide block abuts against the inner wall of the atomizing tube, and an atomizing channel is formed between the other side wall of the porous hard oil guide block and the inner wall of the atomizing tube. A heating element is provided on the side of the porous hard oil guide block facing the atomizing channel, and an oil passage hole is opened on the wall of the atomizing tube that abuts against the porous hard oil guide block.
[0017] In one embodiment, the atomizing core further includes a fixing seat for fixing the porous hard oil guide block. The fixing seat includes a support and an abutment. One end of the abutment is connected to the support, and the end of the porous hard oil guide block abuts against the support. A recess is provided on one side of the abutment. The side of the abutment away from the recess abuts against the atomizing tube. The side of the porous hard oil guide block with a heating element abuts against the side of the abutment with the recess. The atomizing channel is formed at the abutment and the recess of the porous hard oil guide block. A second through hole is provided at the position corresponding to the atomizing channel of the atomizing core on the support.
[0018] In one embodiment, the inner wall of the atomizing tube is also provided with oil-guiding cotton, and the side of the porous hard oil-guiding block opposite to the heating element and the side of the abutting part opposite to the recess abut against the oil-guiding cotton.
[0019] In one embodiment, the porous hard oil guide block is made of glass, ceramic, mica or quartz.
[0020] In one embodiment, the atomizing core includes an atomizing tube, an oil-guiding cotton, and a heating wire. The heating wire is wrapped by the oil-guiding cotton, which is wrapped by the atomizing tube. The atomizing tube has an oil passage hole that communicates with the oil storage chamber.
[0021] In one embodiment, the smoking port is provided with a sealing plug.
[0022] This application also provides an electronic cigarette, including an atomizer with a negative pressure exhaust device and a power supply assembly for supplying power to the atomizer with the negative pressure exhaust device.
[0023] In summary, the beneficial effects of this application are: by setting up a rigid exhaust column, the air pressure inside and outside the oil storage chamber is balanced through the microchannels and / or exhaust holes formed inside it, thereby avoiding the impact of negative pressure on the oil supply efficiency. At the same time, since the microchannels and / or exhaust holes only allow gas to pass through and there is no oil leakage, in conjunction with the oil storage chamber and oil suction device, oil leakage is avoided while exhausting. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of the electronic cigarette in this application.
[0025] Figure 2 This is a schematic diagram of the atomizer with a negative pressure exhaust device in this application.
[0026] Figure 3 This is an exploded view of the atomizer with a negative pressure exhaust device in this application.
[0027] Figure 4 This is a cross-sectional view of the atomizer with a negative pressure exhaust device in this application.
[0028] Figure 5 This is a cross-sectional view of the rigid exhaust column in this application.
[0029] Figure 6 This is a structural diagram of the atomizer core of the atomizer with a negative pressure exhaust device in this application (Example 1).
[0030] Figure 7 This is a structural diagram of the atomizer core of the atomizer with a negative pressure exhaust device in this application (Example 2).
[0031] Figure 8 This is a structural diagram of the mounting base for the atomizer with a negative pressure exhaust device in this application.
[0032] Explanation of reference numerals in the attached figures:
[0033] 100. Atomizer with negative pressure exhaust device;
[0034] 10. Main body; 11. Mouthpiece; 111. Smoking port; 12. Housing; 13. First sealing element; 131. First through hole; 132. Through hole; 14. Oil storage chamber; 15. Base; 151. First vent; 152. Oil storage chamber; 153. Oil suction element;
[0035] 20. Atomizer core; 21. Atomizer tube; 22. Porous rigid wicking block; 23. Atomization channel; 24. Heating element; 25. Oil passage hole; 26. Second seal; 27. Oil wicking cotton;
[0036] 30. Rigid exhaust column; 31. Exhaust port;
[0037] 40. Fixing base; 41. Support; 42. Abutting part; 43. Recess; 44. Second through hole; 45. Heating wire;
[0038] 50. Sealing plug;
[0039] 200. Power supply components. Detailed Implementation
[0040] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.
[0041] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this disclosure are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0042] In this disclosure, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0043] In this document, “connection” refers to fluid connectivity, meaning that a fluid (including liquids and / or gases) can flow from one component to another. Furthermore, in this document, connectivity between two components can refer to direct connection between the two components, such as at least partial alignment between two holes, or connectivity via an intermediate medium.
[0044] In this disclosure, unless otherwise stated, all figures used in this specification and claims to represent component parameters, technical effects, etc., should in any instance be understood to be modified by the terms "approximately" or "roughly". Therefore, unless indicated to the contrary, the numerical parameters listed in the following specification and appended claims are approximate values. They will vary for those skilled in the art depending on the desired properties and effects sought to be obtained through this disclosure, and each numerical parameter should be interpreted according to the number of significant figures and conventional rounding methods or in a manner understood by those skilled in the art.
[0045] In this disclosure, the terminology used in the description of the various examples is for the purpose of describing particular examples only and is not intended to be limiting. Unless the context explicitly indicates otherwise, an element may be one or more unless the number of elements is specifically limited. Furthermore, the term "and / or" as used in this disclosure covers any one of the listed items and all possible combinations thereof.
[0046] "Atomizing matrix" refers to a mixture or auxiliary substance that can be wholly or partially atomized into an aerosol by an electronic device or similar device. Atomizing matrix can be a liquid or oil-based medium such as e-cigarette liquid, medical drugs, or skin lotion. By atomizing these media, an aerosol that can be inhaled or absorbed can be delivered to the user.
[0047] "Aerosol" refers to a colloidal dispersion system formed by small solid or liquid particles dispersed and suspended in a gaseous medium.
[0048] An atomizer is a device that uses heated or ultrasonically heated stored atomizable substrate to form an aerosol. The atomizing coil is one of the main components of an atomizer.
[0049] "E-cigarette" refers to a system that generates an aerosol (i.e., smoke) from an atomizing matrix, such as e-liquid, through atomization or other means for a person to inhale, suck, chew, or nasally inhale. In some examples, an e-cigarette may include an e-liquid reservoir and an atomizing core for adsorbing and atomizing the e-liquid to form smoke.
[0050] In e-cigarette technology, the atomizer core includes a heating element and an wicking component. The heating element heats the e-liquid to form vapor, while the wicking component guides the e-liquid from the reservoir to the heating element. The heating element can be made of resistive materials, such as conductive metals, or of graphite, graphene, carbon nanotubes, etc., and can be filamentous, sheet-like, mesh-like, or printed with patterns. The wicking component can be made of cotton, fiber materials, porous ceramics, porous quartz, or porous glass, for example, cotton or fiber in strip form, or porous ceramics, porous quartz, or porous glass in sheet, semi-cylindrical, or hollow cylindrical form. The heating element is either encased in the wicking component, wrapped around it, embedded in it, or printed on it.
[0051] The following description, in conjunction with the accompanying drawings, further illustrates this application:
[0052] See Figure 1-8 This embodiment provides an electronic cigarette, including an atomizer 100 with a negative pressure exhaust device and a power supply assembly 200 for supplying power to the atomizer 100 with the negative pressure exhaust device.
[0053] like Figure 3 As shown, in some embodiments, an atomizer 100 with a negative pressure exhaust device includes a main body 10, an atomizing core 20, a rigid exhaust column 30, a fixing base 40, and a sealing plug 50. The sealing plug 50 is made of silicone, latex, rubber, or plastic.
[0054] Reference Figure 3 and Figure 4 In some embodiments, the main body 10 has a mouthpiece 11 with a smoking port 111. The main body 10 has an oil storage chamber 14 for containing the atomizing matrix. An atomizing core 20 for heating and atomizing the atomizing matrix is installed inside the main body 10. The atomizing core 20 communicates with the smoking port 111. In use, the atomizing core 20 atomizes the atomizing matrix into an aerosol, which is then inhaled by the user through the smoking port 111. At least one rigid exhaust column 30 is installed on the main body 10 to connect the inside and outside of the oil storage chamber 14. The rigid exhaust column 30 is used to balance the air pressure inside and outside the oil storage chamber 14, preventing pressure imbalance from affecting the oil supply efficiency.
[0055] In some embodiments, each rigid exhaust column 30 has multiple micropores, which communicate with each other to form a microchannel connecting the inside and outside of the oil storage chamber 14. This microchannel allows outside air to enter the oil storage chamber 14, thereby balancing the air pressure inside and outside the chamber. The pore size of the micropores is 3μm-100μm. The rigid exhaust column 30 is made of glass, preferably quartz glass. For example, multiple tiny glass beads are sintered together to form the rigid exhaust column 30, creating micropores and microchannels within it.
[0056] Reference Figure 5 In other embodiments, the rigid exhaust column 30 has an exhaust port 31 extending from one end to the other, connecting the inner and outer sides of the oil storage chamber 14. The exhaust port 31 primarily allows gas to pass through; even if e-liquid passes through, the amount is minimal. The exhaust port 31 allows outside air to enter the oil storage chamber 14, thereby balancing the air pressure inside and outside the chamber. The diameter of the exhaust port 31 is less than or equal to 700 μm; specifically, the diameter can be 5 μm, 30 μm, 200 μm, 500 μm, 600 μm, or 700 μm. The rigid exhaust column 30 is made of ceramic.
[0057] In some embodiments, the main body 10 includes a housing 12 and a first sealing member 13. The oil storage cavity 14 is formed inside the housing 12. The mouthpiece portion 11 is formed at one end of the housing 12. The other end of the housing 12 is open and provided with the first sealing member 13. The first sealing member 13 has a first through hole 131 communicating with the oil storage cavity 14. The rigid exhaust column 30 is disposed in the first through hole 131. During production, e-liquid is injected into the oil storage cavity 14, and then the opening end of the housing 12 is sealed by the first sealing member 13. As the e-liquid in the oil storage cavity 14 is continuously used, the e-liquid decreases and a negative pressure is generated in the oil storage cavity 14. At this time, the air outside the oil storage cavity 14 enters the interior of the oil storage cavity 14 through the microchannels formed by the micropores on the rigid exhaust column 30 and / or the exhaust hole 31, thereby balancing the internal and external air pressure and avoiding the generation of pressure difference that affects the normal oil supply.
[0058] In some embodiments, the end of the rigid exhaust column 30 away from the oil storage chamber 14 is provided with an oil-absorbing element 153 and / or an oil storage chamber 152 for absorbing leaked oil; the microchannel and / or exhaust hole 31 is small in size, allowing only airflow to pass through, and it is difficult for e-liquid to pass through. Even if a small amount of e-liquid leaks to the outside of the oil storage chamber 14 through the microchannel and / or exhaust hole 31, it will be absorbed by the oil-absorbing element 153 and / or the oil storage chamber 152, preventing e-liquid from contaminating the e-cigarette and affecting the user experience.
[0059] In some embodiments, the first sealing member 13 is provided with a base 15 on the side opposite to the oil storage cavity 14. The base 15 has a first air hole 151. An atomizing channel 23 is formed in the atomizing core 20. The atomizing channel 23 is connected to the first air hole 151 and the smoking port 111 respectively. The first air hole 151, the atomizing channel 23 and the smoking port 111 form a complete airflow channel. After the e-liquid is atomized, it forms an aerosol. After mixing with the outside air in the atomizing channel 23, it is discharged from the smoking port 111 for the user to inhale.
[0060] In some embodiments, the base 15 is provided with an oil storage chamber 152, and any leaked atomizing matrix drips into the oil storage chamber 152, preventing contamination and damage to the electronic cigarette. In other embodiments, the oil storage chamber 152 may also be provided with an oil-absorbing component 153, with the end of the rigid exhaust column 30 away from the oil storage chamber 14 abutting against the oil-absorbing component 153. The oil-absorbing component 153 is oil-absorbing cotton; in other embodiments, the oil-absorbing component 153 may be other materials with oil-absorbing properties. Alternatively, in other embodiments, the base 15 does not have an oil storage chamber 152, and only the oil-absorbing component 153 is provided at the end of the rigid exhaust column 30 away from the oil storage chamber. These methods prevent the atomizing matrix leaking from the rigid exhaust column 30 from contaminating and damaging the electronic cigarette, thus affecting its performance.
[0061] In some embodiments, the first sealing member 13 has a through hole 132, one end of the atomizing core 20 is sealed and installed in the through hole 132, and the other end of the atomizing core 20 is sealed and connected to the mouthpiece portion 11 through a second sealing member 26. The first sealing member 13 and the second sealing member 26 are made of silicone, latex, rubber, or plastic, respectively.
[0062] Reference Figure 6 In some embodiments, the atomizing core 20 includes an atomizing tube 21, within which a porous rigid oil-guiding block 22 is disposed. One side wall of the porous rigid oil-guiding block 22 abuts against the inner wall of the atomizing tube 21, and an atomizing channel 23 is formed between the other side wall of the porous rigid oil-guiding block 22 and the inner wall of the atomizing tube 21. A heating element 24 is disposed on the side of the porous rigid oil-guiding block 22 facing the atomizing channel 23. An oil passage hole 25 is formed on the wall of the atomizing tube 21 that abuts against the porous rigid oil-guiding block 22. The atomizing matrix stored in the oil storage chamber 14 is transferred to the oil-guiding cotton 27 through the oil passage hole 25, and then to the porous rigid oil-guiding block 22, where it is heated and atomized by the heating element 24 to generate an aerosol, which is then inhaled by the user. The heating element 24 is made of conductive metal and can electrically heat the atomizing matrix. The heating element 24 can be filamentous, sheet-like, or mesh-like, etc.
[0063] Reference Figure 8 In some embodiments, the atomizing core 20 further includes a fixing seat 40 for fixing the porous hard oil guide block 22. The fixing seat 40 includes a support 41 and an abutment portion 42. One end of the abutment portion 42 is connected to the support 41, and the end of the porous hard oil guide block 22 abuts against the support 41. A recess 43 is provided on one side of the abutment portion 42, and the side of the abutment portion 42 opposite to the recess 43 abuts against the atomizing tube 21. The side of the porous hard oil guide block 22 with the heating element 24 abuts against the side of the abutment portion 42 with the recess 43. The atomizing channel 23 is formed at the abutment portion 42 and the recess 43 of the porous hard oil guide block 22. The support 41 is provided with a second through hole 44 at a position corresponding to the atomizing channel 23 of the atomizing core 20. The support 41 is used to support the porous hard oil guide block 22. The abutment part 42 and the atomizing tube 21 together restrict the radial movement of the porous hard oil guide block 22 along the atomizing tube 21, thus ensuring the stability of the atomizing core 20 structure.
[0064] In some embodiments, the inner wall of the atomizing tube 21 is further provided with oil-guiding cotton 27, and the side of the porous hard oil-guiding block 22 away from the heating element 24 and the side of the abutting part 42 away from the recess 43 also abut against the oil-guiding cotton 27. The oil-guiding cotton 27 is provided to slow down the oil supply speed of the oil storage chamber 14 and avoid oil leakage due to excessive oil supply.
[0065] The porous hard oil guide block 22 is made of glass, ceramic, mica or quartz.
[0066] Reference Figure 7 In other embodiments, the atomizing core 20 includes an atomizing tube 21, an oil-guiding cotton 27, and a heating wire 45. The heating wire 45 is wrapped by the oil-guiding cotton 27, which in turn is wrapped by the atomizing tube 21. The atomizing tube 21 has an oil passage hole 25 communicating with the oil storage chamber 14. The atomizing tube 21 serves to fix and provide an atomization environment. The e-liquid in the oil storage chamber 14 is transferred to the oil-guiding cotton 27 through the oil passage hole 25, and then to the heating wire 45. During use, the heating wire 45 heats up and atomizes the e-liquid into an aerosol, which is finally discharged from the inhalation port 111 for the user to inhale. The heating wire is made of conductive metal, enabling it to heat the atomizing matrix when electrically connected.
[0067] In some embodiments, the smoking port 111 is provided with a sealing plug 50 to prevent the e-liquid in the oil storage chamber 14 from evaporating and being wasted during long-term non-use or long-distance transportation.
[0068] The above are merely embodiments or examples of this disclosure and do not limit the patent scope of this disclosure. Any equivalent structural transformations made based on the concept of this disclosure and the content of this specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this disclosure. Various elements in the embodiments or examples may be omitted or replaced by equivalent elements. Furthermore, the steps may be performed in a different order than described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as technology evolves, many elements described herein can be replaced by equivalent elements appearing after this disclosure.
Claims
1. An atomizer with a negative pressure exhaust device, characterized in that, The device includes a main body, which has a mouthpiece portion with a smoking port. The main body has an oil storage chamber for accommodating an atomizing matrix, and an atomizing core for heating and atomizing the atomizing matrix is installed inside the main body. At least one rigid exhaust column is installed on the main body to communicate between the inside and outside of the oil storage chamber.
2. The atomizer with a negative pressure exhaust device according to claim 1, characterized in that, Each of the hard exhaust columns has multiple micropores, which communicate with each other to form a microchannel that connects the inside and outside of the oil storage chamber.
3. The atomizer with a negative pressure exhaust device according to claim 2, characterized in that, The pore size of the micropores is 3-100 μm.
4. The atomizer with a negative pressure exhaust device according to claim 1, characterized in that, The rigid exhaust column has an exhaust hole that extends from one end to the other.
5. The atomizer with a negative pressure exhaust device according to claim 4, characterized in that, The diameter of the exhaust port is less than or equal to 700 μm.
6. The atomizer with a negative pressure exhaust device according to claim 1, characterized in that, The main body includes a housing and a first sealing element. The oil storage cavity is formed inside the housing. The mouthpiece is formed at one end of the housing. The other end of the housing is open and provided with the first sealing element. The first sealing element has a first through hole communicating with the oil storage cavity. The rigid exhaust column is disposed in the first through hole.
7. The atomizer with a negative pressure exhaust device according to claim 6, characterized in that, The end of the rigid exhaust column away from the oil storage chamber is provided with an oil-absorbing element and / or an oil storage chamber for absorbing leaking oil.
8. The atomizer with a negative pressure exhaust device according to claim 7, characterized in that, The first sealing element has a base on the side opposite to the oil storage cavity. The base has a first air hole. An atomizing channel is formed inside the atomizing core. The atomizing channel is connected to the first air hole and the smoke inlet.
9. The atomizer with a negative pressure exhaust device according to claim 8, characterized in that, The base is provided with an oil storage chamber, and an oil suction element is provided inside the oil storage chamber. The end of the rigid exhaust column away from the oil storage chamber abuts against the oil suction element.
10. The atomizer with a negative pressure exhaust device according to claim 8, characterized in that, The first sealing element has a through hole, one end of the atomizing core is sealed and installed in the through hole, and the other end of the atomizing core is sealed and connected to the mouthpiece through the second sealing element.
11. The atomizer with a negative pressure exhaust device according to claim 1, characterized in that, The rigid exhaust column is made of glass, ceramic, mica, or quartz.
12. The atomizer with a negative pressure exhaust device according to claim 1, characterized in that, The atomizing core includes an atomizing tube, inside which is a porous hard oil guide block. One side wall of the porous hard oil guide block abuts against the inner wall of the atomizing tube, and an atomizing channel is formed between the other side wall of the porous hard oil guide block and the inner wall of the atomizing tube. A heating element is provided on the side of the porous hard oil guide block facing the atomizing channel, and an oil passage hole is opened on the wall of the atomizing tube that abuts against the porous hard oil guide block.
13. The atomizer with a negative pressure exhaust device according to claim 12, characterized in that, The atomizing core also includes a fixing seat for fixing the porous hard oil guide block. The fixing seat includes a support and an abutment. One end of the abutment is connected to the support, and the end of the porous hard oil guide block abuts against the support. A recess is provided on one side of the abutment. The side of the abutment opposite to the recess abuts against the atomizing tube. The side of the porous hard oil guide block with a heating element abuts against the side of the abutment with the recess. The atomizing channel is formed at the abutment and the recess of the porous hard oil guide block. A second through hole is provided at the position corresponding to the atomizing channel of the atomizing core on the support.
14. The atomizer with a negative pressure exhaust device according to claim 13, characterized in that, The inner wall of the atomizing tube is also provided with oil-guiding cotton, and the side of the porous hard oil-guiding block opposite to the heating element and the side of the abutting part opposite to the recess abut against the oil-guiding cotton.
15. The atomizer with a negative pressure exhaust device according to claim 12, characterized in that, The porous hard oil guide block is made of glass, ceramic, mica or quartz.
16. The atomizer with a negative pressure exhaust device according to claim 1, characterized in that, The atomizing core includes an atomizing tube, an oil-guiding cotton, and a heating wire. The heating wire is wrapped by the oil-guiding cotton, which is wrapped by the atomizing tube. The atomizing tube has an oil passage hole that communicates with the oil storage chamber.
17. The atomizer with a negative pressure exhaust device according to claim 1, characterized in that, The smoking port is equipped with a sealing plug.
18. An electronic cigarette, characterized in that, Includes an atomizer with a negative pressure exhaust device as described in any one of claims 1-17 and a power supply assembly for supplying power to the atomizer with the negative pressure exhaust device.