Airflow sensor assembly and heat-not-burn device

Abstract

The utility model relates to the technical field of aerosol generation, and provides an airflow sensor assembly and a heating non-combustion device. The airflow sensor assembly comprises an airflow sensor and a sealing sleeve. The airflow sensor is provided with a first surface and a second surface which are oppositely arranged; the sealing sleeve is tightly arranged on the periphery of the airflow sensor in a sleeving mode and comprises a separation part, the separation part is tightly attached to the first face, and the first face is divided into a first independent area and a second independent area which are independent from each other on the two sides of the separation part. When the air flow sensor assembly is assembled in a heating non-combustion device of two air inlet channels and different air inlet channels are switched for air inlet, different independent areas on the first surface are respectively communicated with the corresponding air inlet channels, so that one air flow sensor assembly can realize counting of the number of openings of the two air inlet channels; the number of airflow sensor assemblies is reduced, and the internal structure of the heating non-combustion device is simplified.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to an airflow sensor assembly and a heat-not-burn device. Background Art

[0002] A heat-not-burn device is a device that heats an aerosol matrix to produce an aerosol. A microphone is typically included within the device, which activates when it senses the user's puff.

[0003] At present, microphones are rarely used to count puffs in heat-not-burn devices. Even if a microphone is used for puff counting, when there are two airways in the heat-not-burn device, only one microphone can be installed in each airway to enable puff counting in different airways. That is, two microphones need to be installed in the heat-not-burn device, which will occupy more space inside the heat-not-burn device and the cost will be correspondingly higher. Utility Model Content

[0004] The present application provides an airflow sensor assembly and a heat-without-combustion device, which can solve the problem that when a heat-without-combustion device has two air passages, two microphones need to be assembled to count the number of puffs, resulting in occupied space and high cost.

[0005] To solve the above-mentioned technical problems, the present application provides an airflow sensor assembly, comprising an airflow sensor and a sealing sleeve. The airflow sensor has a first surface and a second surface disposed opposite each other, and is capable of generating an electrical signal based on a pressure difference sensed by the first surface and the second surface. The sealing sleeve is tightly fitted around the outer periphery of the airflow sensor and includes a partition that is tightly fitted to the first surface and divides the first surface into a first independent area and a second independent area on either side of the partition. The first independent area and the second independent area are independent of each other and both communicate with the exterior of the sealing sleeve.

[0006] In one embodiment, the sealing sleeve also includes a main body portion, the interior of the main body portion has a through hole, at least a portion of the airflow sensor is arranged in the through hole, the airflow sensor has an annular side wall, one end of the annular side wall is connected to the first surface, the other end of the annular side wall is connected to the second surface, and the hole wall of the through hole surrounds and fits the annular side wall; a partition portion is provided at one axial end of the main body portion along the through hole.

[0007] In one embodiment, the surface of the partition portion in contact with the first surface is perpendicular to the axis of the through hole.

[0008] In one embodiment, the first independent region and the second independent region emerge from the sealing sleeve.

[0009] To solve the above-mentioned technical problems, the present application provides a heat-not-burn device, comprising a housing assembly, a heating element, and an airflow sensor assembly. The housing assembly is provided with a first mounting cavity and a second mounting cavity, wherein the first mounting cavity is used to accommodate an aerosol matrix; the heating element is used to heat the aerosol matrix; the airflow sensor assembly is any of the airflow sensor assemblies described above; at least a portion of the airflow sensor assembly is disposed within the second mounting cavity; and the housing assembly is further provided with a first air inlet channel and a second air inlet channel. When the air path between the first air inlet channel and the first mounting cavity is connected, the air path between the first air inlet channel and the first independent region is connected; when the air path between the first air inlet channel and the first mounting cavity is blocked, the air path between the second air inlet channel and the second independent region can be connected.

[0010] In one embodiment, the first independent area, the sealing sleeve and the cavity wall of the second installation cavity enclose a first independent space, the second independent area, the sealing sleeve and the cavity wall of the second installation cavity enclose a second independent space, and the partition separates the first independent space from the second independent space; when the air path between the first air inlet channel and the first installation cavity is connected, the first air inlet channel is connected to the first independent space; when the air path between the first air inlet channel and the first installation cavity is isolated, the second air inlet channel is connected to the second independent space.

[0011] In one embodiment, the shell assembly includes a first bracket and a second bracket, a first mounting cavity is provided in the first bracket, one end of the first mounting cavity has a socket, the socket is used for allowing the aerosol matrix to insert into and exit the first mounting cavity, and a second air inlet channel is formed at the socket; at least a portion of the second bracket is arranged on a side of the first bracket away from the socket, and a first air inlet channel and a second mounting cavity are provided in the second bracket, and the first air inlet channel is located on a side of the first mounting cavity away from the socket.

[0012] In one embodiment, a first through hole and a second through hole are provided on the second bracket, the first independent space and the first air inlet channel are both connected to the first through hole, and the second independent space is connected to the second through hole; the heating without burning device also includes a moving component, which can move relative to the second bracket to selectively block one of the first through hole and the second through hole; when the moving component blocks the first through hole, the second through hole can be connected to the first installation cavity; when the moving component blocks the second through hole, the first through hole can be connected to the first installation cavity.

[0013] In one embodiment, a motion channel is provided in the second bracket, a first through hole and a second through hole are provided on the channel wall of the motion channel, and the motion component is provided in the motion channel; a third through hole and a fourth through hole are provided on the motion component, and the third through hole and the fourth through hole are both connected to the first mounting cavity; the motion component can move relative to the motion channel so that the third through hole is connected to the first through hole and the motion component blocks the second through hole, or the fourth through hole is connected to the second through hole and the motion component blocks the first through hole.

[0014] In one embodiment, the motion assembly includes a sliding member and a rotating member. The rotating member can rotate relative to the second bracket to drive the sliding member to slide in the motion channel. The sliding member is provided with a third through hole and a fourth through hole.

[0015] The present application provides an airflow sensor assembly, comprising an airflow sensor and a sealing sleeve. The airflow sensor has a first surface and a second surface disposed opposite each other, and the airflow sensor is capable of generating an electrical signal based on the air pressure difference sensed by the first surface and the second surface. The sealing sleeve is tightly fitted around the outer periphery of the airflow sensor and includes a partition, which is tightly fitted to the first surface and divides the first surface into a first independent area and a second independent area on either side of the partition. The first independent area and the second independent area are mutually independent and both communicate with the exterior of the sealing sleeve. The present application provides a partition on the sealing sleeve of the airflow sensor assembly, which can divide the sensing surface (first surface) of the airflow sensor into two independent areas. When the airflow sensor assembly is installed in a heat-not-burn device with two intake channels, when switching between intake channels, the different independent areas on the first surface communicate with the corresponding intake channels, generating negative pressure when the corresponding intake channels are inhaled. The corresponding independent areas on the first surface can sense the negative pressure and perform puff counts. Therefore, there is no need to set up two air flow sensor assemblies for the two air intake channels. When the air flow sensor assembly is set in the heat without combustion device, one air flow sensor assembly can realize the number of openings of the two air intake channels, reducing the number of air flow sensor assemblies, simplifying the internal structure of the heat without combustion device, saving space inside the heat without combustion device, and reducing the cost of the heat without combustion device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of an airflow sensor assembly provided in one embodiment of the present application;

[0017] Figure 2 for Figure 1 Schematic diagram from another perspective;

[0018] Figure 3 A schematic structural diagram of a sealing sleeve provided in one embodiment of the present application;

[0019] Figure 4 A schematic diagram of the structure of an airflow sensor provided in one embodiment of the present application;

[0020] Figure 5 A schematic structural diagram of a heat-without-combustion device provided in one embodiment of the present application;

[0021] Figure 6 A schematic structural diagram of a heat-without-combustion device provided in another embodiment of the present application;

[0022] Figure 7 A schematic diagram of the structure of a heat-without-combustion device according to an embodiment of the present application using a first air intake channel for air intake;

[0023] Figure 8 A schematic diagram of the structure of a heat-without-combustion device according to an embodiment of the present application that uses a second air intake channel for air intake;

[0024] Figure 9 A schematic structural diagram of a second sub-bracket provided in one embodiment of the present application;

[0025] Figure 10 for Figure 9 A structural diagram from another perspective;

[0026] Figure 11 A schematic structural diagram of a first sub-bracket provided in one embodiment of the present application;

[0027] Figure 12 A schematic structural diagram of a motion component provided in one embodiment of the present application.

[0028] Description of the drawings: airflow sensor assembly 10, airflow sensor 11, first surface 111, first independent area 1111, second independent area 1112, second surface 112, annular side wall 113, sealing sleeve 12, partition 121, main body 122, through hole 1221, shell assembly 20, first mounting cavity 21, socket 211, second mounting cavity 22, first air inlet channel 23, second air inlet channel 24, first independent space 25, second independent space 26, first bracket 27, second bracket 28, first sub-bracket 281, first through hole 2811, second through hole 2812, second sub-bracket 282, movement channel 283, heating element 30, aerosol matrix 40, movement assembly 50, third through hole 51, fourth through hole 52, sliding member 53, rotating member 54. DETAILED DESCRIPTION

[0029] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0030] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0031] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0032] The terms "parallel" and "perpendicular" are defined in terms of the current state of the art, rather than being absolutely strict definitions in a mathematical sense. A small amount of deviation is allowed, and being approximately parallel or approximately perpendicular is acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0° and 10°. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80° and 100°. The directional terms mentioned in the embodiments of the present application, such as "upper", "inner", "outer", "side", etc., are only directions with reference to the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present application.

[0033] Please refer to Figure 1-4 The present application provides an airflow sensor assembly 10, comprising an airflow sensor 11 and a sealing sleeve 12. The airflow sensor 11 has a first surface 111 and a second surface 112 that are arranged relative to each other. The airflow sensor 11 can generate an electrical signal based on the air pressure difference sensed by the first surface 111 and the second surface 112. In one embodiment, the airflow sensor 11 can be a microphone. Generally, the airflow sensor 11 is cylindrical, and the first surface 111 and the second surface 112 are arranged relative to each other along the axial direction of the airflow sensor 11. The first surface 111 is a negative pressure sensing surface, and the second surface 112 can have a pin (not shown in the figure). The pin is used to electrically connect to the controller so that the electrical signal generated by the airflow sensor 11 can be transmitted to the controller, and the controller can sense the electrical signal of the airflow sensor 11 to control the operation of the heat without combustion device.

[0034] The sealing sleeve 12 is tightly fitted on the outer periphery of the airflow sensor 11. In order to ensure the sealing performance of the sealing sleeve 12, the sealing sleeve 12 can be made of, but not limited to, silicone, rubber, plastic, ethylene vinyl acetate copolymer (EVA plastic for short) and other materials. The sealing sleeve 12 includes a partition 121, which is arranged to fit tightly against the first surface 111, and the two sides of the partition 121 divide the first surface 111 into a first independent area 1111 and a second independent area 1112. Specifically, the first independent area 1111 and the second independent area 1112 are arranged at intervals along the radial direction of the airflow sensor 11, that is, in the radial direction of the airflow sensor 11, the partition 121 divides the first surface 111 into the first independent area 1111 and the second independent area 1112 located on both sides of the partition 121. The first independent area 1111 and the second independent area 1112 are independent of each other, that is, Figure 4 As shown, on the first surface 111, a first independent area 1111 and a second independent area 1112 are spaced apart, and the partition 121 is in close contact with the area between the first independent area 1111 and the second independent area 1112. The first independent area 1111 and the second independent area 1112 are both connected to the exterior of the sealing sleeve 12. When a negative pressure is generated outside the sealing sleeve 12, the first independent area 1111 and the second independent area 1112 can sense the negative pressure, thereby generating a pressure differential with the second surface 112, thereby causing the airflow sensor 11 to generate an electrical signal.

[0035] The present application provides a partition 121 on the sealing sleeve 12 of the airflow sensor assembly 10. The partition 121 can divide the sensing surface (first surface 111) of the airflow sensor 11 into two independent areas. When the airflow sensor assembly 10 is installed in a heat-not-burn device with two air intake channels, when switching between different air intake channels, the different independent areas on the first surface 111 are respectively connected to the corresponding air intake channels. When the corresponding air intake channels are inhaled, negative pressure is generated. The corresponding independent areas on the first surface 111 can sense the negative pressure and perform mouth count counting. Therefore, there is no need to set up two airflow sensor assemblies 10 for the two air intake channels. When the airflow sensor assembly 10 is set in the heat-not-burn device, one airflow sensor assembly 10 can achieve mouth count counting for the two air intake channels, reducing the number of airflow sensor assemblies 10, simplifying the internal structure of the heat-not-burn device, saving space inside the heat-not-burn device, and reducing the cost of the heat-not-burn device.

[0036] Please refer to Figure 1-3In one embodiment, the sealing sleeve 12 further includes a main body 122, the interior of the main body 122 has a through hole 1221, and the through hole 1221 penetrates the main body 122. At least a portion of the airflow sensor 11 is disposed in the through hole 1221, as shown in FIG. Figure 4 As shown, the air flow sensor 11 has an annular side wall 113, one end of the annular side wall 113 is connected to the first surface 111, and the other end of the annular side wall 113 is connected to the second surface 112. Figure 1-3 As shown, the hole wall of the through hole 1221 surrounds and fits the annular side wall 113, so that the first surface 111 and the second surface 112 cannot be connected through the through hole 1221, so that the airflow sensor 11 can work.

[0037] A partition 121 is provided at one end of the main body 122 along the axial direction of the through-hole 1221. The partition 121 is provided at the end of the main body 122 that is closest to the first surface 111, so that the partition 121 can be closely attached to the first surface 111. The partition 121 can be provided outside or inside the through-hole 1221. The partition 121 can span the through-hole 1221 along its radial direction, thereby separating the opening of the through-hole 1221 at the end that is closest to the first surface 111 into two independent openings. The two independent openings are respectively provided in the first independent region 1111 and the second independent region 1112.

[0038] Furthermore, the axis of the airflow sensor 11 coincides with the axis of the through hole 1221 , and the surface where the partition 121 is in contact with the first surface 111 is perpendicular to the axis of the through hole 1221 , so that the partition 121 fits tightly on the first surface 111 of the cylindrical airflow sensor 11 .

[0039] In one embodiment, if Figure 1 and Figure 2 As shown, the first independent area 1111 and the second independent area 1112 are exposed from the sealing sleeve 12, so that the air path between the first surface 111 and the exterior of the airflow sensor assembly 10 is simple and straight. This straight air path is conducive to improving the sensitivity of the airflow sensor 11. In other embodiments, the first independent area 1111 and the second independent area 1112 can also be hidden in the sealing sleeve 12, and the air path between the first independent area 1111 and the second independent area 1112 and the exterior of the airflow sensor assembly 10 can also be a curved air path. The curved air path is conducive to preventing the airflow sensor 11 from self-starting and preventing condensate from flowing into the airflow sensor 11.

[0040] like Figure 5-8As shown, the present application also provides a heat-not-burn device, which includes a housing assembly 20, a heating element 30, and an airflow sensor assembly 10. The housing assembly 20 is provided with a first mounting cavity 21 and a second mounting cavity 22. The first mounting cavity 21 is used to accommodate an aerosol matrix 40. One end of the first mounting cavity 21 has a socket 211 for allowing the aerosol matrix 40 to be inserted into and removed from the first mounting cavity 21.

[0041] Among them, the aerosol matrix 40 can be used as a consumable material for a heat-not-burn device. In one embodiment, the aerosol matrix 40 may include a matrix section, a cooling section, and a filter section. The matrix section is used to accommodate a grass-like matrix, the cooling section is used to cool the aerosol generated by the matrix section, and the filter section can filter the aerosol. The user can inhale the aerosol generated by the matrix section by inhaling the filter section. Of course, in other embodiments, the aerosol matrix 40 may also have other structures, not limited to the structures mentioned above, and this application is not limited to this. In this application, the heat-not-burn device may include the aerosol matrix 40 or may not include the aerosol matrix 40.

[0042] The heating element 30 is used to heat the aerosol matrix 40. The heating element 30 can be resistive heating or non-contact heating. Resistive heating can, for example, be in the form of a heating tube or heating needle in thermal contact with the aerosol matrix 40. Non-contact heating can be performed by heating the aerosol matrix 40 in a field manner. This application does not limit the form of the heating element 30.

[0043] The airflow sensor assembly 10 of the heat-not-burn device is the airflow sensor assembly 10 described in any of the aforementioned embodiments and can achieve the same technical effects as the airflow sensor assembly 10 described in any of the aforementioned embodiments. At least a portion of the airflow sensor assembly 10 is disposed within the second mounting cavity 22, with at least one end of the airflow sensor assembly 10 proximate to the first surface 111 being disposed within the second mounting cavity 22.

[0044] like Figure 7 and Figure 8 As shown, a first air inlet channel 23 and a second air inlet channel 24 are also provided in the shell assembly 20, wherein the air path between the first air inlet channel 23 and the first mounting cavity 21 can be selectively connected or isolated, so that the heating without combustion device can choose to adopt the first air inlet channel 23 or the second air inlet channel 24 to intake air.

[0045] When the air path between the first air inlet channel 23 and the first installation cavity 21 is connected ( Figure 7), the heat-not-burn device adopts the first air inlet channel 23 to intake air, and the air path between the first air inlet channel 23 and the first independent area 1111 is connected, so that when the user inhales, a negative pressure is generated in the first air inlet channel 23, which can trigger the space where the first independent area 1111 is located to generate a negative pressure, thereby triggering the airflow sensor 11 to send an electrical signal, thereby capturing the inhalation action, so as to realize the number of puffs counted in the first air inlet channel 23.

[0046] When the air path between the first air inlet channel 23 and the first installation cavity 21 is cut off ( Figure 8 ), the heat-not-burn device adopts a second air inlet channel 24 for air intake, and the air path between the second air inlet channel 24 and the second independent area 1112 is connected, so that when the user inhales, the second air inlet channel 24 generates a negative pressure, which can trigger the space where the second independent area 1112 is located to generate a negative pressure, thereby triggering the airflow sensor 11 to send an electrical signal, thereby capturing the inhalation action, so as to realize the number of puffs counted in the second air inlet channel 24.

[0047] The present application provides a partition 121 on the sealing sleeve 12 of the airflow sensor assembly 10. The partition 121 can divide the sensing surface (first surface 111) of the airflow sensor 11 into two independent areas. When the airflow sensor assembly 10 is installed in a heat-not-burn device with two air intake channels, when switching between different air intake channels, the different independent areas on the first surface 111 are respectively connected to the corresponding air intake channels. When the corresponding air intake channels are inhaled, negative pressure is generated. The corresponding independent areas on the first surface 111 can sense the negative pressure and perform mouth count counting. Therefore, there is no need to set up two airflow sensor assemblies 10 for the two air intake channels. When the airflow sensor assembly 10 is set in the heat-not-burn device, one airflow sensor assembly 10 can achieve mouth count counting for the two air intake channels, reducing the number of airflow sensor assemblies 10, simplifying the internal structure of the heat-not-burn device, saving space inside the heat-not-burn device, and reducing the cost of the heat-not-burn device.

[0048] In one embodiment, if Figure 9 As shown, the first independent area 1111, the sealing sleeve 12 and the cavity wall of the second installation cavity 22 enclose a first independent space 25, and the second independent area 1112, the sealing sleeve 12 and the cavity wall of the second installation cavity 22 enclose a second independent space 26. The first independent space 25 and the second independent space 26 are independent of each other, and the partition 121 separates the first independent space 25 and the second independent space 26. Figure 7 As shown, when the air path between the first air inlet channel 23 and the first installation cavity 21 is connected, the first air inlet channel 23 is connected to the first independent space 25; Figure 8As shown, when the air path between the first air intake channel 23 and the first mounting cavity 21 is blocked, the second air intake channel 24 communicates with the second independent space 26. By providing the mutually independent first independent space 25 and second independent space 26 within the second mounting cavity 22, when air is taken in through different air intake channels, negative pressure is generated in the independent spaces corresponding to the air intake channels, thereby enabling the airflow sensor 11 to operate.

[0049] In one embodiment, if Figure 8 As shown, the housing assembly 20 includes a first bracket 27 and a second bracket 28. A first mounting cavity 21 is defined within the first bracket 27. A second air inlet channel 24 is formed at the socket 211 of the first mounting cavity 21. This means that when air is introduced through the second air inlet channel 24, the heat-without-combustion device operates in a top-intake manner. Consequently, when the first air inlet channel 23 is closed, the aerosol matrix 40 generates aerosol in a hypoxic state and diffuses toward the oxygen-rich region, where it can be drawn in through the second air inlet channel 24. In this embodiment, air intake through the second air inlet channel 24 provides an oxygen-free heating method.

[0050] like Figure 7 As shown, at least a portion of the second bracket 28 is disposed on the side of the first bracket 27 away from the socket 211. A first air inlet channel 23 and a second mounting cavity 22 are provided within the second bracket 28. The first air inlet channel 23 is located on the side of the first mounting cavity 21 away from the socket 211. This means that when air is introduced through the first air inlet channel 23, the heat-without-combustion device uses bottom intake and oxygen heating. By integrating both oxygen-free and oxygen-based heating within the heat-without-combustion device, it can be adapted to different aerosol substrates 40.

[0051] Specifically, if Figure 7-11 As shown, the second bracket 28 may include a first sub-bracket 281 and a second sub-bracket 282. At least a portion of the first sub-bracket 281 is disposed on a side of the first bracket 27 away from the socket 211, and the second sub-bracket 282 is disposed on a side of the first sub-bracket 281 away from the first bracket 27. The first air inlet channel 23 and the second mounting cavity 22 are disposed on the second sub-bracket 282.

[0052] In one embodiment, the second bracket 28 is provided with a first through hole 2811 and a second through hole 2812. Specifically, the first sub-bracket 281 is provided with a first through hole 2811 and a second through hole 2812. The first independent space 25 and the first air inlet passage 23 are both connected to the first through hole 2811, and the second independent space 26 is connected to the second through hole 2812.

[0053] like Figure 7 、 8As shown in FIG12 , the heat-not-burn device further includes a moving assembly 50, which can move relative to the second bracket 28 to selectively block one of the first through hole 2811 and the second through hole 2812. Figure 8 As shown, when the motion component 50 blocks the first through hole 2811, the second through hole 2812 can be connected to the first installation cavity 21, so that the second through hole 2812 can be connected to the second air inlet channel 24. Figure 7 As shown, when the motion component 50 blocks the second through hole 2812 , the first through hole 2811 can be connected to the first installation cavity 21 , so that the first air inlet channel 23 can intake air into the first installation cavity 21 .

[0054] In one embodiment, if Figure 7-8 As shown, a motion channel 283 is provided in the second bracket 28. In one embodiment, the first sub-bracket 281 and the second sub-bracket 282 cooperate to form the motion channel 283. The channel wall of the motion channel 283 is provided with a first through hole 2811 and a second through hole 2812. Specifically, the first sub-bracket 281 is provided with a first through hole 2811 and a second through hole 2812. The motion assembly 50 is disposed in the motion channel 283.

[0055] like Figure 12 As shown, the motion assembly 50 is provided with a third through hole 51 and a fourth through hole 52, and both the third through hole 51 and the fourth through hole 52 are in communication with the first mounting cavity 21. The motion assembly 50 can move relative to the motion channel 283 to move to a position where the third through hole 51 is in communication with the first through hole 2811 and blocks the second through hole 2812, or to a position where the fourth through hole 52 is in communication with the second through hole 2812 and blocks the first through hole 2811. Thus, the movement of the motion assembly 50 can switch the communication between the first through hole 2811 or the second through hole 2812 and the first mounting cavity 21, thereby switching the intake of air through the first air intake channel 23 or the intake of air through the second air intake channel 24.

[0056] Furthermore, the motion assembly 50 includes a sliding member 53 and a rotating member 54. The rotating member 54 can rotate relative to the second bracket 28 to drive the sliding member 53 to slide within the motion channel 283. The sliding member 53 is provided with a third through hole 51 and a fourth through hole 52. The sliding member 53 and the rotating member 54 can be threadedly connected so that the rotation of the rotating member 54 can be converted into linear sliding of the sliding member 53.

[0057] The above examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, modifications or substitutions can be made based on the ideas of the present invention.

Claims

1. An airflow sensor assembly, characterized in that: include: an airflow sensor having a first surface and a second surface disposed opposite to each other, the airflow sensor being capable of generating an electrical signal based on an air pressure difference sensed by the first surface and the second surface; and a sealing sleeve, which is tightly fitted on the outer periphery of the airflow sensor, the sealing sleeve including a partition, which is tightly fitted on the first surface and divides the first surface into a first independent area and a second independent area on both sides of the partition, the first independent area and the second independent area being independent of each other, and both the first independent area and the second independent area being connected to the outside of the sealing sleeve.

2. The airflow sensor assembly according to claim 1, wherein: The sealing sleeve also includes a main body, the interior of the main body has a through hole, at least a portion of the airflow sensor is arranged in the through hole, the airflow sensor has an annular side wall, one end of the annular side wall is connected to the first surface, the other end of the annular side wall is connected to the second surface, and the hole wall of the through hole surrounds and fits the annular side wall; the partition is provided at one end of the main body along the axial direction of the through hole.

3. The airflow sensor assembly according to claim 2, wherein: The surface of the partition part in contact with the first surface is perpendicular to the axis of the through hole.

4. The airflow sensor assembly according to any one of claims 1 to 3, characterized in that: The first independent area and the second independent area are exposed from the sealing sleeve.

5. A heat-not-burn device, characterized in that: include: A housing assembly, wherein a first mounting cavity and a second mounting cavity are provided in the housing assembly, wherein the first mounting cavity is used to accommodate an aerosol matrix; a heating element, the heating element being used to heat the aerosol matrix; and an airflow sensor assembly, wherein the airflow sensor assembly is the airflow sensor assembly according to any one of claims 1 to 4; at least a portion of the airflow sensor assembly is disposed in the second mounting cavity; The shell assembly is also provided with a first air inlet channel and a second air inlet channel. When the air path between the first air inlet channel and the first installation cavity is connected, the air path between the first air inlet channel and the first independent area is connected; when the air path between the first air inlet channel and the first installation cavity is isolated, the air path between the second air inlet channel and the second independent area is connected.

6. The heat-without-combustion device according to claim 5, characterized in that: The first independent area, the sealing sleeve and the cavity wall of the second installation cavity enclose a first independent space, the second independent area, the sealing sleeve and the cavity wall of the second installation cavity enclose a second independent space, and the partition separates the first independent space and the second independent space; when the air path between the first air inlet channel and the first installation cavity is connected, the first air inlet channel is connected with the first independent space; when the air path between the first air inlet channel and the first installation cavity is isolated, the second air inlet channel is connected with the second independent space.

7. The heat-not-burn device according to claim 6, characterized in that: The shell assembly includes a first bracket and a second bracket, the first bracket is provided with the first mounting cavity, one end of the first mounting cavity has a socket, the socket is used for the aerosol matrix to be inserted into and exited from the first mounting cavity, and the second air inlet channel is formed at the socket; at least a portion of the second bracket is arranged on a side of the first bracket away from the socket, the second bracket is provided with the first air inlet channel and the second mounting cavity, and the first air inlet channel is located on a side of the first mounting cavity away from the socket.

8. The heat-not-burn device according to claim 7, characterized in that: A first through hole and a second through hole are provided on the second bracket, the first independent space and the first air inlet channel are both connected to the first through hole, and the second independent space is connected to the second through hole; the heating without burning device also includes a moving component, which can move relative to the second bracket to selectively block one of the first through hole and the second through hole; when the moving component blocks the first through hole, the second through hole can be connected to the first installation cavity; when the moving component blocks the second through hole, the first through hole can be connected to the first installation cavity.

9. The heat-without-combustion device according to claim 8, characterized in that: A movement channel is provided in the second bracket, and the first through hole and the second through hole are provided on the channel wall of the movement channel, and the movement component is provided in the movement channel; a third through hole and a fourth through hole are provided on the movement component, and the third through hole and the fourth through hole are both connected to the first mounting cavity; the movement component can move relative to the movement channel so that the third through hole is connected to the first through hole and the movement component blocks the second through hole, or the fourth through hole is connected to the second through hole and the movement component blocks the first through hole.

10. The heat-not-burn device according to claim 9, characterized in that: The motion assembly includes a sliding member and a rotating member. The rotating member can rotate relative to the second bracket to drive the sliding member to slide in the motion channel. The sliding member is provided with the third through hole and the fourth through hole.

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