An aerosol-generating device and an aerosol-generating system

Abstract

The present disclosure relates to the technical field of aerosol generating article heating, and in particular to an aerosol generating device and an aerosol generating system. The aerosol generating device comprises a housing, a heating assembly, a power supply assembly, a pressure relief port and a pressure relief assembly. The pressure relief assembly of the aerosol generating device can automatically open the pressure relief when the power supply assembly fails to release the pressure, so that the gas generated by the power supply assembly can be discharged to the outside world in the first time, and the heating cavity and the power supply cavity are not connected with each other, and the gas generated by the power supply assembly failure will not enter the heating cavity and be inhaled by the user, which can effectively ensure the use safety when the battery fails to release the pressure. The aerosol generating system comprises an aerosol generating article and the aerosol generating device described above, which can open the pressure relief in the first time when the power supply assembly fails, and has high use safety.

Description

Technical Field

[0001] This disclosure relates to the field of heating technology for aerosol-generated products, and more particularly to an aerosol-generating apparatus and an aerosol-generating system. Background Technology

[0002] Traditional tobacco products rely on combustion to release nicotine and other flavor compounds, but the combustion process produces a large amount of smoke and harmful substances, which is not conducive to long-term inhalation. Currently, aerosol-generating products are beginning to be available on the market using electric heating. These aerosol-generating products do not rely on combustion but instead use electric heating to release nicotine and other components in the aerosol form.

[0003] For aerosol generating devices, the battery is the sole power source. When the battery malfunctions internally, it releases a large amount of gas. This gas can accumulate inside the aerosol generating device, potentially causing an explosion. Furthermore, if a user happens to inhale the gas released from the battery at this time, the gas may also be inhaled through the aerosol generating device, causing varying degrees of harm to the user. This compromises the safety of use when the battery malfunctions and leaks gas. Summary of the Invention

[0004] To address the aforementioned technical problems, this disclosure provides an aerosol generating apparatus and an aerosol generating system.

[0005] In a first aspect, this disclosure provides an aerosol generating apparatus, comprising: The housing has a smoke inlet and a heating chamber and a power supply chamber that are not connected to each other; the smoke inlet is connected to the heating chamber and is used for inserting the aerosol-generating product. A heating component is disposed within the heating chamber, and the heating component is used to heat the aerosol-generated product; A power supply assembly is disposed within the power supply cavity, and the power supply assembly is electrically connected to the heating assembly. A pressure relief port is provided on the housing and is connected to the power supply cavity and the outside. A pressure relief assembly is movably connected to the pressure relief port. The pressure relief assembly is configured to block the pressure relief port when the air pressure in the power supply chamber is less than or equal to a preset value, and to open the pressure relief port when the air pressure in the power supply chamber is greater than the preset value.

[0006] Optionally, the pressure relief port includes a first hole, a second hole, and a stepped portion, wherein the stepped portion is disposed at the connection between the first hole and the second hole, and the radial dimension of the second hole is smaller than the radial dimension of the first hole; the first hole is configured to communicate with the outside, and the second hole is configured to communicate with the power supply cavity; The pressure relief assembly includes a pressure relief cover, which includes an insert and an umbrella end connected to the insert; the insert is inserted into the second hole, and the umbrella end is sealed against the stepped portion to block the pressure relief port.

[0007] Optionally, the pressure relief cover and the pressure relief port are interference-fitted.

[0008] Optionally, the pressure relief assembly further includes a connector disposed within the power supply cavity. The connector is connected to the insert. The connector has a first vent groove communicating with the power supply cavity on the side facing the second hole. The peripheral wall of the insert has a second vent groove communicating with the first vent groove. The connector is configured to push the pressure relief cover when the air pressure in the power supply cavity is greater than the preset value, so that the power supply cavity communicates with the outside through the first vent groove and the second vent groove.

[0009] Optionally, the pressure relief assembly further includes an elastic element disposed within the power supply cavity. The elastic element is sleeved on the insert body, with one end of the elastic element connected to the connector and the other end connected to the periphery of the second hole. The elastic element is configured to drive the umbrella end to move toward blocking the pressure relief port when the air pressure in the power supply cavity is less than or equal to a preset value.

[0010] Optionally, the pressure relief assembly further includes a seal, and an annular groove is provided at the connection between the insert and the umbrella end, with the seal embedded in the annular groove.

[0011] Optionally, the pressure relief assembly further includes a vent cover and a first magnetic component and a second magnetic component with opposite magnetic properties; the vent cover blocks the first hole and has a vent hole; the first magnetic component is disposed on the pressure relief cover, and the second magnetic component is disposed around the hole of the second hole; the second magnetic component is configured to magnetically attract the first magnetic component so that the umbrella end and the stepped portion seal against each other; the pressure relief cover is configured to be pressurized and move towards the vent cover to open when the air pressure in the power chamber is greater than the preset value, so that the power chamber can communicate with the outside through the vent hole.

[0012] Optionally, the housing is provided with a partition to separate the heating chamber and the power supply chamber, which are not interconnected.

[0013] Optionally, the separator includes a first separator, a second separator, and a sealing body. The second separator and the first separator enclose the heating cavity, and the sealing body is sandwiched between the first separator and the second separator. The first separator and the housing enclose the power supply cavity.

[0014] Secondly, this embodiment provides an aerosol generation system, which includes an aerosol generation product and the aforementioned aerosol generation device.

[0015] The technical solution provided in this disclosure has the following advantages compared with the prior art: The aerosol generating device includes a housing, a heating component, a power supply component, a pressure relief port, and a pressure relief assembly. The housing has a heating chamber and a power supply chamber that are not interconnected. The heating component and the power supply component are respectively assembled into the heating chamber and the power supply chamber. The power supply chamber is connected to the outside through the pressure relief port. The pressure relief assembly is movably mounted on the pressure relief port. When the power supply component generates a large amount of gas due to a short circuit or other fault, the pressure relief assembly can automatically open to release pressure, allowing the gas generated by the power supply component to be discharged to the outside as soon as possible. Furthermore, since the heating chamber and the power supply chamber are not interconnected, the gas generated by the power supply component fault will not enter the heating chamber and be inhaled by the user, effectively ensuring the safety of use when the battery leaks gas due to a fault.

[0016] The aerosol generation system includes an aerosol generation product and the aforementioned aerosol generation device, which can immediately open and release pressure in the event of a power component failure, ensuring high safety in use. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional view of the aerosol generating apparatus according to Embodiment 1 of this disclosure; Figure 2 for Figure 1 A magnified view of a portion of point A in the middle; Figure 3 This is a schematic diagram of the structure of the pressure relief cover when it is opened according to Embodiment 1 of this disclosure; Figure 4 for Figure 1 A magnified view of a portion of point B in the middle; Figure 5 This is a structural breakdown diagram of the separator described in Embodiment 1 of this disclosure; Figure 6 This is a schematic diagram of the pressure relief assembly described in Embodiment 2 of this disclosure; Figure 7 This is a structural breakdown diagram of the pressure relief assembly described in Embodiment 2 of this disclosure. Figure 1 ; Figure 8 This is a structural breakdown diagram of the pressure relief assembly described in Embodiment 2 of this disclosure. Figure 2 ; Figure 9 This is a schematic diagram of the structure of the pressure relief assembly described in Embodiment 2 of this disclosure when the pressure relief port is closed; Figure 10 This is a schematic diagram of the pressure relief assembly described in Embodiment 2 of this disclosure when it is in operation. Figure 11 This is a structurally disassembled schematic diagram of the pressure relief assembly described in Embodiment 3 of this disclosure; Figure 12 This is a schematic diagram of the assembly and connection between the second magnetic component and the housing as described in Embodiment 3 of this disclosure; Figure 13 This is a schematic diagram of the structure of the pressure relief assembly described in Embodiment 3 of this disclosure when the pressure relief port is closed; Figure 14 This is a schematic diagram of the structure of the pressure relief assembly described in Embodiment 3 of this disclosure when the pressure relief is activated.

[0020] in: 1. Housing; 11. Smoke inlet; 12. Heating chamber; 13. Power supply chamber; 14. Divider; 141. First divider; 142. Sealing body; 143. Second divider; 2. Heating components; 3. Power supply components; 4. Pressure relief port; 41. First hole section; 42. Second hole section; 43. Step section; 5. Pressure relief assembly; 51. Pressure relief cover; 511. Insert body; 5111. Second vent groove; 5112. Ring groove; 512. Umbrella end; 52. Connector; 521. First vent groove; 53. Elastic element; 54. Sealing element; 55. Vent cover; 551. Vent hole; 56. First magnetic element; 57. Second magnetic element. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0022] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0023] Example 1 This embodiment provides an aerosol generating device, which includes a housing 1, a heating component 2, a power supply component 3, a pressure relief port 4, and a pressure relief component 5. The housing 1 has a smoke inlet 11 and two non-communicating heating chambers 12 and 13. The smoke inlet 11 is connected to the heating chamber 12 for inserting the aerosol-generated product. The heating component 2 is disposed within the heating chamber 12 and is used to heat the aerosol-generated product. The power supply component 3 is disposed within the power supply chamber 13 and is electrically connected to the heating component 2. The pressure relief port 4 is disposed on the housing 1 and communicates with the power supply chamber 13 and the outside environment. The pressure relief component 5 is movably connected to the pressure relief port 4 and is configured to block the pressure relief port 4 when the air pressure in the power supply chamber 13 is less than or equal to a preset value, and to open the pressure relief port 4 when the air pressure in the power supply chamber 13 is greater than the preset value.

[0024] That is, such as Figures 1 to 3 As shown, one end of the housing 1 is provided with a smoke inlet 11 communicating with the heating chamber 12, and the other end is provided with a pressure relief port 4 communicating with the power supply chamber 13. The heating chamber 12 and the power supply chamber 13 are not interconnected. The pressure relief component 5 is disposed on the pressure relief port 4. Under normal conditions, when the air pressure in the power supply chamber 13 is less than or equal to a preset value, the pressure relief component 5 seals the pressure relief port 4 to maintain a relatively sealed environment in the power supply chamber 13, preventing the entry of water vapor, dust, and other substances, and ensuring the stable operation of the power supply component 3. In this embodiment, the preset value can be the external atmospheric pressure, that is, when the air pressure in the power supply chamber 13 is less than or equal to the external atmospheric pressure, the pressure relief component 5 seals the pressure relief port 4. When the power component 3 generates a large amount of gas due to a short circuit or other fault, the gas pressure in the power chamber 13 will rise rapidly. Once the gas pressure in the power chamber 13 exceeds the preset value, the thrust generated by the pressure difference will push the pressure relief component 5, causing it to automatically open the pressure relief port 4, thus completing the pressure relief of the power component 3. Since the heating chamber 12 and the power chamber 13 are not connected, the gas generated by the power component 3 can only be discharged from the pressure relief port 4. The gas generated by the power component 3 will not enter the heating chamber 12 and be inhaled by the user. The entire pressure relief process is entirely driven by physical gas pressure and does not require additional electronic sensing control, which can effectively ensure the safety of use when the battery is leaking gas due to a fault.

[0025] Further, the pressure relief port 4 in this embodiment includes a first hole 41, a second hole 42, and a stepped portion 43. The stepped portion 43 is disposed at the connection between the first hole 41 and the second hole 42. The radial dimension of the second hole 42 is smaller than the radial dimension of the first hole 41. The first hole 41 is configured to communicate with the outside, and the second hole 42 is configured to communicate with the power supply cavity 13. The pressure relief assembly 5 includes a pressure relief cover 51, which includes an insert 511 and an umbrella end 512 connected to the insert 511. The insert 511 is inserted into the second hole 42, and the umbrella end 512 is sealed against the stepped portion 43 to block the pressure relief port 4.

[0026] That is, such as Figure 2 and Figure 3 As shown, both the pressure relief port 4 and the pressure relief cover 51 in this embodiment have a T-shaped structure. The radial dimension of the second hole 42 is smaller than that of the first hole 41. The connection between the two naturally forms a step 43. During assembly, the pressure relief cover 51 is inserted from the first hole 41 until the insert 511 is inserted into the second hole 42. The step 43 and the umbrella end 512 seal against each other, forming an axial stop and limiting, and completely sealing the pressure relief port 4. Even if the user accidentally touches and squeezes the pressure relief cover 51 during the holding process, the umbrella end 512 will be limited and blocked by the step 43, and the pressure relief cover 51 will not fall into the power supply cavity 13, causing the pressure relief port 4 to open accidentally.

[0027] Optionally, in this embodiment, the pressure relief cover 51 may be interference-fitted with the pressure relief port 4 to further prevent the pressure relief cover 51 from easily coming off under external force. For example, in this embodiment, the pressure relief cover 51 is made of an elastomer material, such as silicone or TPE, and the pressure relief cover 51 is interference-fitted onto the pressure relief port 4.

[0028] Optionally, the aerosol generating device of this embodiment may further include a separator 14 to separate the housing 1 into a heating chamber 12 and a power supply chamber 13 that are not interconnected.

[0029] That is, such as Figure 1 As shown, in this embodiment, the interior of the housing 1 is divided into a heating chamber 12 and a power supply chamber 13 that are not connected to each other by setting a separator 14, thereby achieving physical isolation between the two chambers to prevent gas generated by a power supply component 3 failure from entering the heating chamber 12.

[0030] In some embodiments, the partition 14 may be a partition structure that can directly seal against the inner peripheral wall of the housing 1 to divide the internal space of the housing 1 into a heating chamber 12 and a power supply chamber 13. The partition 14 may have openings through which only the power supply wires pass to achieve electrical connection between the power supply assembly 3 and the heating assembly 2.

[0031] In this embodiment, as Figure 4 and Figure 5As shown, the separator 14 includes a first separator 141, a second separator 143 and a sealing body 142. The second separator 143 and the first separator 141 surround to form a heating cavity 12. The sealing body 142 is sandwiched between the first separator 141 and the second separator 143. The first separator 141 and the housing 1 surround to form a power supply cavity 13. In this embodiment, the separator 14 adopts a split structure. This split design significantly reduces the manufacturing difficulty of the isolation structure between the heating chamber 12 and the power supply chamber 13. The first separator 141 and the second separator 143 can be independently formed and assembled, eliminating the need to integrally form a complex double-cavity partition in the housing 1. This simplifies the process and controls the cost. The sealing body 142 is sandwiched between the first separator 141 and the second separator 143 as an independent component. An elastic sealing interface can be formed by pre-pressing during assembly. This not only compensates for the machining tolerances of the parts but also maintains reliable airtightness under temperature changes or mechanical vibrations, ensuring that the heating chamber 12 and the power supply chamber 13 are strictly isolated from each other. This structurally prevents the possibility of battery malfunction gas entering the heating chamber 12.

[0032] It is worth noting that the aerosol-generating article referred to in this embodiment includes an aerosol-generating matrix that can provide volatile components when heated. The aerosol-generating matrix can include any tobacco-containing material, such as one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. The aerosol-generating matrix may or may not contain nicotine. This embodiment does not specifically limit the composition and form of the aerosol-generating matrix; any aerosol-generating matrix that can produce volatile components upon heating falls within the scope of protection of this application.

[0033] Example 2 This embodiment provides an aerosol generating device, such as... Figures 6 to 10 As shown, the aerosol generating device includes a housing 1, a heating component 2, a power supply component 3, a pressure relief port 4, and a pressure relief component 5. The difference between this embodiment and Embodiment 1 lies in the specific structure of the pressure relief component 5.

[0034] like Figures 6 to 8 As shown, the pressure relief assembly 5 in this embodiment includes a pressure relief cover 51 and a connector 52, with the connector 52 disposed within the power supply cavity 13. The structure of the pressure relief port 4 and the pressure relief cover 51 in this embodiment is the same as in Embodiment 1. The pressure relief port 4 includes a first hole 41, a second hole 42, and a stepped portion 43. The pressure relief cover 51 includes an insert 511 and an umbrella end 512 connected to the insert 511. The insert 511 is inserted into the second hole 42, and the umbrella end 512 is sealed against the stepped portion 43 to block the pressure relief port 4.

[0035] The connector 52 is connected to the insert 511, and the connector 52 can be threadedly assembled with the insert 511. The connector 52 has a first vent groove 521 on the side facing the second hole 42, communicating with the power supply cavity 13. The insert 511 has a second vent groove 5111 on its peripheral wall, communicating with the first vent groove 521. Under normal conditions, the pressure relief cover 51 seals the pressure relief port 4, and the umbrella end 512 of the pressure relief cover 51 seals against the step 43, keeping the pressure relief port 4 completely blocked. When the power supply assembly 3 generates a large amount of gas due to a short circuit or other fault, the gas pressure in the power supply cavity 13 rises rapidly. When the gas pressure in the power supply cavity 13 exceeds a preset value, the thrust generated by the pressure difference pushes the connector 52, thereby causing the pressure relief cover 51 to move away from the pressure relief port 4. The umbrella end 512 disengages from the step 43, and the gas in the power supply cavity 13 flows to the outside through the first vent groove 521 and the second vent groove 5111. Figure 7 As shown, in this embodiment, the first venting groove 521 is a through groove, which is formed on the side of the connector 52 facing the second hole 42 and is disposed through the side wall of the connector 52. The second venting groove 5111 is a venting groove 5111 that extends along the axial direction of the insert 511.

[0036] Thus, due to the presence of the connector 52, the pressure relief cover 51 can only move within a preset stroke and cannot completely detach from the pressure relief port 4. When the pressure inside the power chamber 13 increases rapidly, the pressure relief cover 51 will not be blown out and will not cause accidental injury to personnel. Even if the air pressure impact inside the power chamber 13 is severe, the pressure relief cover 51 will only open to release air within a limited stroke and will not detach from the housing 1, effectively ensuring the personal safety of users and surrounding personnel under extreme fault conditions.

[0037] Furthermore, the pressure relief assembly 5 also includes an elastic element 53 disposed in the power supply cavity 13. The elastic element 53 is sleeved outside the insert 511. One end of the elastic element 53 is connected to the connector 52, and the other end is connected to the periphery of the second hole 42. The elastic element 53 is configured to drive the umbrella end 512 to move toward the direction of sealing the pressure relief port 4 when the air pressure in the power supply cavity 13 is less than or equal to a preset value.

[0038] like Figure 9 and Figure 10As shown, in this embodiment, an elastic element 53 is sleeved on the outer periphery of the insert 511. The elastic element 53 is in a compressed state. Under the action of the elastic element 53, the umbrella end 512 can make tight contact with the step portion 43, so that the pressure relief port 4 is reliably sealed to prevent the umbrella end 512 from easily separating from the step portion 43. When the power component 3 fails and generates a large amount of gas, under the action of gas pressure, the thrust generated by the gas pressure difference will push the connector 52, thereby driving the pressure relief cover 51 to move in the direction of separating from the pressure relief port 4. The umbrella end 512 is released from contact with the step portion 43. After the pressure relief is completed, the elastic potential energy stored in the elastic element 53 is released, pushing the pressure relief cover 51 to reset, so that the umbrella end 512 re-tightly seals the pressure relief port 4. Its reset force is stable and reliable, and is not affected by the holding orientation of the aerosol generating device, ensuring that the seal can be restored immediately even in the inverted or tilted state.

[0039] Optionally, such as Figure 7 As shown, the pressure relief assembly 5 also includes a sealing element 54. An annular groove 5112 is provided at the connection between the insert 511 and the umbrella end 512. The sealing element 54 is embedded in the annular groove 5112 to further improve the sealing performance of the pressure relief cover 51 and the pressure relief port 4, so as to prevent the entry of external moisture, dust and other substances from affecting the service life of the power supply assembly 3.

[0040] Example 3 This embodiment provides an aerosol generating device, such as... Figures 11 to 14 As shown, the aerosol generating device includes a housing 1, a heating component 2, a power supply component 3, a pressure relief port 4, and a pressure relief component 5. The difference between this embodiment and Embodiment 1 lies in the specific structure of the pressure relief component 5.

[0041] like Figures 11 to 14 As shown, the pressure relief assembly 5 in this embodiment includes a pressure relief cover 51, a vent cover 55, and a first magnetic element 56 and a second magnetic element 57 with opposite magnetic properties.

[0042] The pressure relief port 4 and pressure relief cover 51 in this embodiment have the same structure as in Embodiment 1. The pressure relief port 4 includes a first hole 41, a second hole 42, and a stepped portion 43. The pressure relief cover 51 includes an insert 511 and an umbrella end 512 connected to the insert 511. The insert 511 is inserted into the second hole 42, and the umbrella end 512 is sealed against the stepped portion 43 to block the pressure relief port 4.

[0043] Among them, the vent cap 55 seals the first hole 41, such as Figure 11As shown, the vent cover 55 has a vent hole 551, through which outside air can enter into the first hole 41. A first magnetic element 56 is disposed on the pressure relief cover 51, and a second magnetic element 57 is disposed around the hole in the second hole 42. The second magnetic element 57 is configured to magnetically attract the first magnetic element 56 so that the umbrella end 512 and the step portion 43 are sealed and abutted. The pressure relief cover 51 is configured to be pressurized and move towards the vent cover 55 to open when the air pressure in the power chamber 13 is greater than a preset value, so that the power chamber 13 can communicate with the outside through the vent hole 551.

[0044] like Figure 13 As shown, under normal conditions, under the magnetic attraction of the first magnetic component 56 and the second magnetic component 57, the pressure relief cover 51 tightly seals the pressure relief port 4, and the umbrella end 512 can make close contact with the step portion 43. When the power supply assembly 3 malfunctions and generates a large amount of gas, under the action of gas pressure, the pressure difference will overcome the magnetic force between the first magnetic component 56 and the second magnetic component 57 and push the pressure relief cover 51 completely away from the pressure relief port 4. The pressure relief cover 51 is removed from the pressure relief port 4 and abuts against the vent cover 55. The gas in the power supply cavity 13 is discharged to the outside through the pressure relief port 4 and the vent hole 551 on the vent cover 55. After the pressure relief is completed, the gas pressure in the power supply cavity 13 gradually decreases. Under the magnetic attraction of the first magnetic component 56 and the second magnetic component 57, the pressure relief cover 51 resets and tightly seals the pressure relief port 4, thereby realizing the automatic pressure relief of the pressure relief assembly 5.

[0045] Example 4 This embodiment provides an aerosol generation system, which includes an aerosol generation device and an aerosol generation product. The aerosol generation device is used to heat the aerosol generation product, and the structure of the aerosol generation device can adopt any of the solutions in Embodiments 1 to 3.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aerosol generating device, characterized in that, include: The housing (1) has a smoke inlet (11), a heating chamber (12) and a power supply chamber (13) that are not connected to each other; the smoke inlet (11) is connected to the heating chamber (12) and is used for inserting aerosol generating products; A heating component (2) is disposed in the heating chamber (12), and the heating component (2) is used to heat the aerosol-generated product; A power supply assembly (3) is disposed in the power supply cavity (13), and the power supply assembly (3) is electrically connected to the heating assembly (2); A pressure relief port (4) is provided on the housing (1) and is connected to the power supply cavity (13) and the outside. A pressure relief assembly (5) is movably connected to the pressure relief port (4). The pressure relief assembly (5) is configured to block the pressure relief port (4) when the air pressure in the power chamber (13) is less than or equal to a preset value, and to open the pressure relief port (4) when the air pressure in the power chamber (13) is greater than the preset value.

2. The aerosol generating apparatus according to claim 1, characterized in that, The pressure relief port (4) includes a first hole (41), a second hole (42), and a stepped portion (43). The stepped portion (43) is disposed at the connection between the first hole (41) and the second hole (42). The radial dimension of the second hole (42) is smaller than the radial dimension of the first hole (41). The first hole (41) is configured to communicate with the outside, and the second hole (42) is configured to communicate with the power supply cavity (13). The pressure relief assembly (5) includes a pressure relief cover (51), which includes an insert (511) and an umbrella end (512) connected to the insert (511); the insert (511) is inserted into the second hole (42), and the umbrella end (512) is sealed against the step (43) to block the pressure relief port (4).

3. The aerosol generating apparatus according to claim 2, characterized in that, The pressure relief cover (51) and the pressure relief port (4) are pressurized together.

4. The aerosol generating apparatus according to claim 2, characterized in that, The pressure relief assembly (5) further includes a connector (52) disposed in the power chamber (13). The connector (52) is connected to the insert (511). The connector (52) has a first vent groove (521) communicating with the power chamber (13) on the side facing the second hole (42). The insert (511) has a second vent groove (5111) communicating with the first vent groove (521) on its peripheral wall. The connector (52) is configured to push the pressure relief cover (51) when the air pressure in the power chamber (13) is greater than the preset value, so that the power chamber (13) communicates with the outside through the first vent groove (521) and the second vent groove (5111).

5. The aerosol generating apparatus according to claim 4, characterized in that, The pressure relief assembly (5) also includes an elastic element (53) disposed in the power chamber (13). The elastic element (53) is sleeved outside the insert (511). One end of the elastic element (53) is connected to the connector (52), and the other end is connected to the periphery of the second hole (42). The elastic element (53) is configured to drive the umbrella end (512) to move toward blocking the pressure relief port (4) when the air pressure in the power chamber (13) is less than or equal to a preset value.

6. The aerosol generating apparatus according to claim 2, characterized in that, The pressure relief assembly (5) also includes a seal (54), and an annular groove (5112) is provided at the connection between the insert (511) and the umbrella end (512), and the seal (54) is embedded in the annular groove (5112).

7. The aerosol generating apparatus according to claim 2, characterized in that, The pressure relief assembly (5) further includes a vent cover (55), and a first magnetic element (56) and a second magnetic element (57) with opposite magnetic properties; the vent cover (55) blocks the first hole (41), the vent cover (55) has a vent hole (551), the first magnetic element (56) is disposed on the pressure relief cover (51), the second magnetic element (57) is disposed around the hole of the second hole (42), the second magnetic element (57) is configured to magnetically attract with the first magnetic element (56) so that the umbrella end (512) and the step portion (43) are sealed and abutted; the pressure relief cover (51) is configured to be pressurized and move toward the vent cover (55) to open when the air pressure in the power chamber (13) is greater than the preset value, so that the power chamber (13) is connected to the outside through the vent hole (551).

8. The aerosol generating apparatus according to claim 1, characterized in that, The housing (1) is provided with a partition (14) to separate the heating chamber (12) and the power supply chamber (13) into two non-communicating parts.

9. The aerosol generating apparatus according to claim 8, characterized in that, The separator (14) includes a first separator (141), a second separator (143), and a sealing body (142). The second separator (143) and the first separator (141) surround the heating cavity (12). The sealing body (142) is sandwiched between the first separator (141) and the second separator (143). The first separator (141) and the housing (1) surround the power supply cavity (13).

10. An aerosol generation system, characterized in that, Includes aerosol generating articles and aerosol generating apparatus as described in any one of claims 1-9.

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