Aerosol-generating device

Abstract

An aerosol-generating device (100). The aerosol-generating device (100) comprises a housing assembly (10), a battery (30), an accommodating tube (21), a plurality of electrical components (40), a mainboard assembly (50) and a flexible printed circuit (60). The housing assembly (10) has an inner cavity (10A) and an insertion port (10a). The battery (30) and the accommodating tube (21) are disposed in the inner cavity (10A), the accommodating tube (21) has an accommodating chamber (21A), the accommodating chamber (21A) is in communication with the insertion port (10a), and the accommodating chamber (21A) is configured to accommodate an aerosol-generating substrate; the mainboard assembly (50) and the flexible printed circuit (60) are disposed in the inner cavity (10A), and the flexible printed circuit (60) is electrically connected to the mainboard assembly (50); and the flexible printed circuit (60) comprises a first branch (61) and a second branch (62), with one end of the first branch (61) being connected to one end of the second branch (62), the other end of the first branch (61) and the other end of the second branch (62) being separated from each other, and the first branch (61) and the second branch (62) being electrically connected to different electrical components (40). The wiring is convenient, and the utilization rate of the internal space is relatively high.

Description

An aerosol generating device

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202423117686.0, filed on December 16, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of aerosol generation technology, and particularly relates to an aerosol generation device. Background Technology

[0004] A heat-not-burning (HNB) device is an electronic device that heats the aerosol-generating matrix without causing it to burn. The heating device heats the aerosol-generating matrix to a temperature high enough to produce aerosols but not hot enough to burn them, allowing the matrix to generate the desired aerosols without combustion.

[0005] In related technologies, electrical connections are required between the main board and electrical components inside the heated non-combustible device. However, due to internal space limitations, wiring is difficult, and the position design of the main board and electrical components is highly demanding. Summary of the Invention

[0006] In view of this, embodiments of this application aim to provide an aerosol generating device to facilitate wiring and improve the utilization of internal space.

[0007] This application provides an aerosol generating apparatus, comprising:

[0008] A housing assembly having an inner cavity and an insertion port;

[0009] A battery and a receiving tube are disposed in the inner cavity. The receiving tube has a receiving cavity that communicates with the insertion port. The receiving cavity is used to contain the aerosol generation matrix.

[0010] Multiple electrical components;

[0011] A motherboard assembly and a flexible circuit board are disposed within an inner cavity. The flexible circuit board is electrically connected to the motherboard assembly. The flexible circuit board includes a first branch and a second branch. One end of the first branch and one end of the second branch are connected. The other ends of the first branch and the second branch are separated from each other. The first branch and the second branch are electrically connected to different electrical devices.

[0012] In some embodiments, the plurality of electrical components include a display screen and a keypad, the first branch being electrically connected to the keypad, and the second branch being electrically connected to the display screen; and / or,

[0013] The housing assembly includes a top wall and a side wall. The insertion port is located in the top wall. The side wall is connected to the top wall. The electrical components are respectively disposed in the top wall and the side wall. A first branch is connected to the electrical component disposed in the side wall, and a second branch is connected to the electrical component disposed in the top wall.

[0014] In some embodiments, the aerosol generating apparatus further includes at least one temperature sensor disposed on the flexible circuit board, the at least one temperature sensor being used to detect the temperature of the battery and / or the motherboard assembly; and / or,

[0015] At least one of the first branch and the second branch is disposed against the outer wall of the battery.

[0016] In some embodiments, the receiving tube includes an air inlet tube for supplying air to the receiving cavity, the air inlet tube and the main board assembly being located on the side of the receiving cavity away from the insertion port, and the main board assembly being located laterally to the air inlet tube; and / or,

[0017] The flexible circuit board includes a main stem, one end of which is connected to the motherboard assembly, and the other end of which is connected to one end of the first branch and arranged along a first direction. The main stem and the portion of the first branch extending along the first direction form a T-shaped structure with the second branch.

[0018] In some embodiments, the motherboard assembly includes a first circuit board and a second circuit board that are separated from each other and electrically connected.

[0019] In some embodiments, the receiving tube includes an air inlet tube located on the side of the receiving cavity away from the insertion port, the air inlet tube being used to supply air to the receiving cavity, the first circuit board and the second circuit board facing each other, and the air inlet tube being located between the first circuit board and the second circuit board.

[0020] In some embodiments, the receiving tube is located on a first side of the battery in a first direction, and the first circuit board and the second circuit board are spaced apart in the first direction; the air intake pipe is located between the first circuit board and the second circuit board in the first direction, and one of the first circuit board and the second circuit board is located between the air intake pipe and the battery.

[0021] In some embodiments, the first circuit board integrates a first circuit module, which includes a power supply circuit and a heating circuit. The heating circuit is electrically connected to the receiving tube and is used to supply power to the receiving tube. The power supply circuit is electrically connected to the battery. The second circuit board integrates a second circuit module, which is electrically connected to the electrical device. The maximum power of the first circuit module is greater than the maximum power of the second circuit module.

[0022] In some embodiments, the first circuit module further includes a charging interface, and the housing assembly has a clearance opening through which the charging interface is exposed to the outside of the housing assembly.

[0023] In some embodiments, the housing assembly includes an outer shell and an inner shell disposed within the outer shell, the aerosol generating device includes a vibration motor, a portion of the inner shell wall protrudes toward the air inlet pipe to form a recessed mounting opening on the outer surface of the shell wall, and the vibration motor is disposed within the mounting opening.

[0024] In the aerosol generating device provided in this application embodiment, the flexible circuit board occupies little space and can be easily arranged inside the cavity. The flexible circuit board extends out a first branch and a second branch. On the one hand, the flexible circuit board does not need to connect each electrical component sequentially; different electrical components can be connected through the first and second branches, which are separated at one end, making the wiring of the flexible circuit board more flexible. On the other hand, multiple electrical components can be located in different positions within the housing assembly, with less restriction from the extension direction of the flexible circuit board, making the position design of the electrical components more flexible and conducive to improving the space utilization rate within the cavity. Attached Figure Description

[0025] Figure 1 is a partial structural schematic diagram of an aerosol generating device in one embodiment of this application;

[0026] Figure 2 is an exploded view of an aerosol generating apparatus in one embodiment of this application;

[0027] Figure 3 is a structural schematic diagram of the part of the shell assembly omitted in Figure 1;

[0028] Figure 4 is a schematic diagram of the structure in Figure 3 from another perspective;

[0029] Figure 5 is a schematic diagram of the structure in Figure 1 with the outer shell and inner shell omitted;

[0030] Figure 6 is a schematic diagram of the structure in Figure 5 from another perspective. Detailed Implementation

[0031] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0032] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0033] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0035] This application provides an aerosol generating device 100. Referring to Figures 1 and 2, the aerosol generating device 100 includes a housing assembly 10, a battery 30, and a receiving tube 21. The housing assembly 10 has an inner cavity 10A and an insertion port 10a. The battery 30 and the receiving tube 21 are disposed in the inner cavity 10A. The receiving tube 21 has a receiving chamber 21A, which communicates with the insertion port 10a. The receiving chamber 21A is used to contain the aerosol generating matrix. That is, the aerosol generating matrix is ​​inserted into the receiving chamber 21A through the insertion port 10a, or removed from the receiving chamber 21A through the insertion port 10a. The receiving tube 21 has a heating element (not shown) for heating the aerosol generating matrix to generate the aerosol desired by the user.

[0036] In some embodiments, the aerosol generating device 100 is a heated non-combustible electronic cigarette device.

[0037] In some embodiments, a portion of the aerosol generating matrix is ​​inserted into the receiving cavity 21A, and another portion of the aerosol generating matrix forms a suction nozzle located outside the aerosol generating device 100 for user suction. In other embodiments, the aerosol generating device 100 has a suction nozzle, and the aerosol generating matrix is ​​completely placed inside the aerosol generating device 100.

[0038] Please refer to Figures 2 and 3. The aerosol generating device 100 also includes multiple electrical components 40, a mainboard assembly 50, and a flexible circuit board 60.

[0039] Electrical device 40 is an electronic component that operates by means of electrical signals, such as a sensor or a light-emitting component.

[0040] The motherboard assembly 50 is used to control the entire aerosol generating device 100. For example, the motherboard assembly 50 integrates electronic components such as a microcontroller unit (MCU) and a power supply circuit to control the aerosol generating device 100.

[0041] Flexible printed circuit (FPC) is a type of flexible printed circuit board made of flexible materials, such as polyimide or polyester film, and features high wiring density, thinness, and good bending performance.

[0042] Both the mainboard assembly 50 and the flexible circuit board 60 are disposed within the inner cavity 10A, and the flexible circuit board 60 is electrically connected to the mainboard assembly 50. For example, referring to Figure 6, the flexible circuit board 60 is connected to the mainboard via a connector 80, and pins of the flexible circuit board 60 and / or the mainboard are inserted into the connector 80.

[0043] Please refer to Figures 2 to 4. The flexible circuit board 60 includes a first branch 61 and a second branch 62. One end of the first branch 61 and one end of the second branch 62 are connected, while the other ends of the first branch 61 and the second branch 62 are separate. That is, the first branch 61 and the second branch 62 are two branches of the flexible circuit board 60 that take different directions. The first branch 61 and the second branch 62 are electrically connected to different electrical devices 40. In other words, the flexible circuit board 60 extends from the main board assembly 50 and branches out at least the first branch 61 and the second branch 62, connecting to different electrical devices 40 through the first branch 61 and the second branch 62, thereby enabling power supply and / or communication between the main board assembly 50 and the electrical devices 40, allowing the electrical devices 40 to operate normally.

[0044] The flexible circuit board 60 occupies little space and has a relatively stable connection with the main board assembly 50. It can be easily arranged inside the cavity, for example, covering the surface of the battery 30. The flexible circuit board 60 has a first branch 61 and a second branch 62. On the one hand, the flexible circuit board 60 does not need to connect each electrical component 40 sequentially. Different electrical components 40 can be connected through the first branch 61 and the second branch 62, which are separated at one end. The wiring of the flexible circuit board 60 is more flexible. On the other hand, multiple electrical components 40 can be located in different positions within the housing assembly 10. They are less restricted by the extension direction of the flexible circuit board 60. The position design of the electrical components 40 is more flexible and helps to improve the space utilization rate within the cavity 10A.

[0045] For example, the receiving tube 21 is located on a first side of the battery 30 in the first direction D1, and the battery 30 is disposed opposite to the first side on a second side of the first direction D1. In one embodiment, the first branch 61 extends at least partially along the first direction D1, and the second branch 62 extends at least partially in a direction perpendicular to the first direction D1, as shown in FIG6. In another embodiment, the first branch 61 extends at least partially obliquely relative to the first direction D1, and the second branch 62 extends at least partially obliquely relative to the first direction D1.

[0046] In some embodiments, the flexible circuit board 60 further includes a third branch, wherein one end of the first branch 61, one end of the second branch 62, and one end of the third branch are interconnected, and the other ends of the first branch 61, the second branch 62, and the third branch are separated from each other. The third branch is electrically connected to other electrical components.

[0047] The form of the electrical components 40 is not limited. In some embodiments, referring to Figures 2 and 3, multiple electrical components 40 include a display screen 41 and a button control panel 42. A first branch 61 is electrically connected to the button control panel 42, and a second branch 62 is electrically connected to the display screen 41. The display screen 41 can be used to display the current battery level or other information of the battery 30. The button control panel 42 can be used for manual control of the aerosol generating device 100 by the user. For example, when the button control panel 42 is pressed, the mainboard assembly 50 receives a power-on or power-off command. It is understood that communication and / or power supply between the display screen 41 and the mainboard assembly 50, and between the button control panel 42 and the mainboard assembly 50, are all via the flexible circuit board 60.

[0048] For example, the display screen 41 is located on the second side of the battery 30 along the first direction D1.

[0049] For example, the button control panel 42 can be a capacitive touch button or a mechanical button.

[0050] For example, the electrical component 40 can also be a breathing light or a speaker, etc.

[0051] In some embodiments, referring to FIG1, the housing assembly 10 includes a top wall portion 101 and a side wall portion 102. An insertion port 10a is located in the top wall portion 101, and the side wall portion 102 is connected to the top wall portion 101. Electrical components 40 are respectively provided in the top wall portion 101 and the side wall portion 102. Referring to FIG4, a first branch 61 extends towards the side wall portion 102 at one end connected to the electrical component 40, and a second branch 62 extends towards the top wall portion 101 at one end connected to the electrical component 40.

[0052] For example, the display screen 41 is disposed on the side wall portion 102.

[0053] For example, the button control panel 42 is disposed on the top wall portion 101.

[0054] For example, referring to Figure 4, the flexible circuit board 60 includes a main branch 601. One end of the main branch 601 is connected to the main board assembly 50, and the other end of the main branch 601 is connected to one end of the first branch 61 and arranged along the first direction D1. The main branch 601 and the portion of the first branch 61 extending along the first direction D1 form a T-shaped structure with the second branch 62. Such wiring is relatively neat.

[0055] In some embodiments, the aerosol generating apparatus 100 further includes at least one temperature sensor, i.e., the number of temperature sensors may be one, two, or more. At least one temperature sensor is disposed on the flexible circuit board 60, and at least one temperature sensor is used to detect the temperature of the battery 30 and / or the mainboard assembly 50, so that the mainboard assembly 50 can obtain the current state of the aerosol generating apparatus 100 based on the information fed back by the temperature sensor, and control the aerosol generating apparatus more finely.

[0056] Understandably, the information fed back by the temperature sensor is transmitted to the main board assembly 50 via the flexible circuit board 60. The flexible circuit extends within the inner cavity 10A and is electrically connected to the electrical components 40 via the first branch 61 and the second branch 62. This allows for a larger settable area for the temperature sensor and more flexible position design, which helps the main board assembly 50 to more accurately obtain the temperature of various parts, including the battery 30 or the main board assembly 50.

[0057] In some embodiments, referring to FIG4, at least one of the first branch 61 and the second branch 62 is disposed abutted against the outer wall of the battery 30. In this embodiment, the outer wall of the battery 30 facilitates the laying of the flexible circuit board 60, which is both convenient for processing and saves space. Exemplarily, the second branch 62 is disposed abutted against the outer wall of the battery 30.

[0058] In some embodiments, referring to Figures 2 and 3, the receiving tube 21 includes an air inlet tube 22 for supplying air to the receiving cavity 21A. External gas enters the receiving cavity 21A through the air inlet tube 22, and under the action of the heating element, the external gas reacts with the aerosol generating matrix to generate an aerosol. Exemplarily, the user's suction action creates a negative pressure within the receiving tube 21, facilitating the entry of external gas into the receiving cavity 21A through the air inlet tube 22. The air inlet tube 22 connects the suction nozzle to the external environment, making it easier for the user to aspirate the generated aerosol.

[0059] Both the intake pipe 22 and the mainboard assembly 50 are located on the side of the receiving cavity 21A away from the insertion port 10a, with the mainboard assembly 50 located laterally to the intake pipe 22. "Laterally to the intake pipe 22" refers to the direction perpendicular to the axial direction of the intake pipe 22. In this embodiment, the intake pipe 22 is far from the high-temperature receiving cavity 21A, and the temperature of the space laterally to the intake pipe 22 is lower, closer to the operating temperature of the mainboard assembly 50, making it suitable for placement and improving its stability. For example, the outer diameter of the intake pipe 22 is smaller than the maximum outer diameter of the receiving pipe 21, meaning there is sufficient clearance space laterally to accommodate the mainboard assembly 50, which improves the space utilization within the inner cavity 10A.

[0060] In some embodiments, referring to Figures 3 and 5, the motherboard assembly 50 includes a first circuit board 51 and a second circuit board 52 that are separated from each other and electrically connected. Exemplarily, both the first circuit board 51 and the second circuit board 52 include a PCB (Printed Circuit Board), which serves as a support for electronic components and a carrier for the electrical interconnection of these components. For example, the MCU and power supply circuit are both mounted on the PCB. Exemplarily, the first circuit board 51 and the second circuit board 52 can be electrically connected via a wire harness or a flexible circuit board 60.

[0061] In this embodiment, the motherboard assembly 50 includes a first circuit board 51 and a second circuit board 52 electrically connected, distributing electronic components across different PCBs while maintaining electrical connection. This allows for more flexible arrangement of the motherboard assembly 50 within the cavity 10A, improving space utilization. Furthermore, the motherboard assembly 50 has a larger area for mounting electronic components, reducing manufacturing complexity and preventing overly compact component distribution, thus minimizing interference and improving reliability.

[0062] The relative positional relationship between the first circuit board 51 and the second circuit board 52 is not limited. For example, in some embodiments, the first circuit board 51 and the second circuit board 52 are arranged perpendicular to each other. In other embodiments, referring to FIG. 6, the first circuit board 51 and the second circuit board 52 face each other, and the air intake pipe 22 is located between the first circuit board 51 and the second circuit board 52. In this way, by utilizing the space on the side of the air intake pipe 22, there is sufficient distance between the first circuit board 51 and the second circuit board 52 to avoid the electronic components mounted on the first circuit board 51 and the second circuit board 52, further improving the space utilization rate.

[0063] In some embodiments, referring to FIG6, the receiving tube 21 is located on the first side of the battery 30 in the first direction D1, the first circuit board 51 and the second circuit board 52 are arranged at intervals in the first direction D1, and the air intake tube 22 is located between the first circuit board 51 and the second circuit board 52 in the first direction D1.

[0064] One of the first circuit board 51 and the second circuit board 52 is located between the air intake pipe 22 and the battery 30. For example, the first circuit board 51 is located between the air intake pipe 22 and the battery 30, or the second circuit board 52 is located between the air intake pipe 22 and the battery 30.

[0065] In this embodiment, the receiving tube 21 and the battery 30 are arranged along the first direction D1, which is beneficial for the routing of the flexible circuit board 60 and saves its extension length.

[0066] In some embodiments, the first circuit board 51 integrates a first circuit module, which includes a power supply circuit and a heating circuit. The heating circuit is electrically connected to the receiving tube 21 and supplies power to the receiving tube 21. The power supply circuit is electrically connected to the battery 30. The second circuit board 52 integrates a second circuit module, which is electrically connected to the electrical device 40. The maximum power of the first circuit module is greater than the maximum power of the second circuit module.

[0067] In other words, compared to the second circuit board 52, the first circuit board 51 is a high-power circuit board with a larger operating current. It is used to control or implement high-power functions in the aerosol generating device 100, such as heating the aerosol generating matrix or charging. The first circuit module is integrated into the first circuit board 51, which brings the electronic components with high operating current closer together, reducing connection losses and space occupation. In addition, the division of the first and second circuit modules according to their functions can reduce the communication required between the first circuit board 51 and the second circuit board 52, thereby reducing the number of connection lines between the first circuit board 51 and the second circuit board 52.

[0068] For example, the second circuit module includes a control circuit with a microcontroller unit and a Flash memory for responding to the action of the keypad 42 and / or lighting up the display screen 41.

[0069] For example, referring to Figures 3 and 5, the first circuit module also has a charging interface 511, and the housing assembly 10 has a clearance opening 10b, through which the charging interface 511 is exposed to the outside of the housing assembly 10. The charging interface 511 is used to connect a charging wire from an external power source to charge the battery 30. In one embodiment, the first circuit board 51 and the second circuit board 52 are spaced apart along a first direction D1, which helps to maintain a distance between the charging interface 511 and the air intake pipe 22 along the first direction D1, so as to facilitate the connection of the charging wire. Specifically, referring to Figure 6, the distance between the axis of the first circuit board 51 and the axis of the air intake pipe 22 is greater than the distance between the axis of the second circuit board 52 and the air intake pipe 22, and the charging interface 511 is farther away from the air intake pipe 22 along the first direction D1, making it less likely to interfere.

[0070] For example, the first circuit board 51 is located between the air intake pipe 22 and the battery 30 in the first direction D1, so that the distance between the first circuit module and the battery 30 is short, which can shorten the wiring length.

[0071] In some embodiments, referring to Figures 1 and 2, the housing assembly 10 includes an outer shell 12 and an inner shell 11 disposed within the outer shell 12. The aerosol generating device 100 includes a vibration motor 70. A portion of the shell wall of the inner shell 11 protrudes towards the air inlet pipe 22 to form a recessed mounting opening 70a on the outer surface of the shell wall. The vibration motor 70 is disposed within the mounting opening 70a. The vibration motor 70 is used to generate vibrations to alert the user or to optimize the grip feel of the aerosol generating device 100 through vibration. The vibration motor 70 can enhance the functionality of the aerosol generating device 100.

[0072] For example, the vibration motor 70 is electrically connected to the second circuit board 52.

[0073] For example, please refer to Figure 2. The inner shell 11 includes a first half shell 111 and a second half shell 112. The first half shell 111 and the second half shell 112 are separate structures. The outer surface of the second half shell 112 forms a recessed mounting opening 70a. The first half shell 111 and the second half shell 112 are fastened together. The outer shell 12 is fitted around the inner shell 11. The outer shell 12 is the outer appearance part of the aerosol generating device 100.

[0074] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0076] The various embodiments / implementations provided in this application can be combined with each other without creating contradictions.

[0077] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An aerosol generating device, wherein, include: A housing assembly having an inner cavity and an insertion port; A battery and a receiving tube are disposed in the inner cavity. The receiving tube has a receiving cavity that communicates with the insertion port. The receiving cavity is used to contain the aerosol generation matrix. Multiple electrical components; A motherboard assembly and a flexible circuit board are disposed within an inner cavity. The flexible circuit board is electrically connected to the motherboard assembly. The flexible circuit board includes a first branch and a second branch. One end of the first branch and one end of the second branch are connected. The other ends of the first branch and the second branch are separated from each other. The first branch and the second branch are electrically connected to different electrical devices.

2. The aerosol generating apparatus according to claim 1, wherein, The plurality of electrical components include a display screen and a keypad control panel, the first branch being electrically connected to the keypad control panel, and the second branch being electrically connected to the display screen; and / or, The housing assembly includes a top wall and a side wall. The insertion port is located in the top wall. The side wall is connected to the top wall. The electrical components are respectively disposed in the top wall and the side wall. A first branch is connected to the electrical component disposed in the side wall, and a second branch is connected to the electrical component disposed in the top wall.

3. The aerosol generating apparatus according to claim 1, wherein, The aerosol generating device further includes at least one temperature sensor disposed on the flexible circuit board, the at least one temperature sensor being used to detect the temperature of the battery and / or the motherboard assembly; and / or At least one of the first branch and the second branch is disposed against the outer wall of the battery.

4. The aerosol generating apparatus according to claim 1, wherein, The aerosol generating device includes an air inlet pipe connected to the receiving tube, the air inlet pipe being used to supply air to the receiving cavity, the air inlet pipe and the main board assembly both being located on the side of the receiving cavity away from the insertion port, and the main board assembly being located laterally to the air inlet pipe; and / or, The flexible circuit board includes a main stem, one end of which is connected to the motherboard assembly, and the other end of which is connected to one end of the first branch and arranged along a first direction. The main stem and the portion of the first branch extending along the first direction form a T-shaped structure with the second branch.

5. The aerosol generating apparatus according to any one of claims 1-4, wherein, The motherboard assembly includes a first circuit board and a second circuit board that are separated from each other and are electrically connected.

6. The aerosol generating apparatus according to claim 5, wherein, The receiving tube includes an air inlet pipe located on the side of the receiving cavity away from the insertion port. The air inlet pipe is used to supply air to the receiving cavity. The first circuit board and the second circuit board face each other, and the air inlet pipe is located between the first circuit board and the second circuit board.

7. The aerosol generating apparatus according to claim 6, wherein, The receiving tube is located on a first side of the battery in a first direction, and the first circuit board and the second circuit board are arranged at a distance in the first direction; the air intake pipe is located between the first circuit board and the second circuit board in the first direction, and one of the first circuit board and the second circuit board is located between the air intake pipe and the battery.

8. The aerosol generating apparatus according to claim 7, wherein, The first circuit board integrates a first circuit module, which includes a power supply circuit and a heating circuit. The heating circuit is electrically connected to the receiving tube and is used to supply power to the heating element of the receiving tube. The power supply circuit is electrically connected to the battery. The second circuit board integrates a second circuit module, which is electrically connected to the electrical device. The maximum power of the first circuit module is greater than the maximum power of the second circuit module.

9. The aerosol generating apparatus according to claim 8, wherein, The first circuit module also has a charging interface, and the housing assembly has a clearance opening through which the charging interface is exposed to the outside of the housing assembly.

10. The aerosol generating apparatus according to any one of claims 1-4, wherein, The housing assembly includes an outer shell and an inner shell disposed within the outer shell. The aerosol generating device includes a vibration motor. A portion of the inner shell wall protrudes toward the air inlet pipe to form a recessed mounting opening on the outer surface of the shell wall. The vibration motor is disposed within the mounting opening.

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