Atomization assembly and atomization device

Abstract

The application provides an atomization assembly and an atomization device, and relates to the technical field of aerosol generating devices.The atomization assembly comprises a heating element and a temperature switch element.The heating element comprises a base and a heating body connected to each other.The base is used for permeating aerosol substrate to the vicinity of the heating body so that the heating body heats and atomizes the aerosol substrate in the vicinity to form aerosol.The temperature switch element is connected to the heating body, and can sense the temperature of the heating body.When the temperature of the heating body is higher than a preset value, the temperature switch element controls the short circuit of the heating body.The heating body of the atomization assembly can heat and atomize the aerosol substrate into aerosol during normal operation, so as to be inhaled by a user.When the supply of aerosol substrate is insufficient, the heating body will dry out and continue to heat up.When the temperature switch element senses that the temperature of the heating body is higher than the preset value, the temperature switch element will control the open circuit of the heating body, so as to avoid the continuous heating of the heating body and the burning of the heating body, thereby affecting the service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerosol generating device, in particular to an atomization assembly and an atomization device. BACKGROUND

[0002] An atomizer is an electronic product that simulates a traditional cigarette. The mechanism of generating aerosol is mainly that a battery powers a heating component to atomize aerosol substrate and generate aerosol. Compared with a traditional cigarette, the atomizer can be used for a long time because the aerosol substrate and the battery can be replaced to maintain the endurance of the atomizer.

[0003] However, when the supply of aerosol substrate is insufficient, the heating component will continue to heat, which will cause the heating component to be easily burned out and have a short service life. SUMMARY

[0004] Therefore, it is necessary to provide an atomization assembly and an atomization device to solve the problem that the heating component will continue to heat when the heating component of the atomizer is dry, which will cause the heating component to be easily burned out and have a short service life.

[0005] The present application provides an atomization assembly, comprising:

[0006] a heating component, comprising a base and a heating body connected to each other, the base being used for permeating aerosol substrate to the vicinity of the heating body, so that the heating body heats and atomizes the aerosol substrate in the vicinity to form aerosol;

[0007] a temperature switch component connected to the heating body, the temperature switch component being capable of sensing the temperature of the heating body; when the temperature of the heating body is higher than a preset value, the temperature switch component controls the heating body to be disconnected.

[0008] The heating body of the atomization assembly can heat and atomize the aerosol substrate to form aerosol for a user to smoke when the atomization assembly is in normal operation. When the supply of aerosol substrate is insufficient, the heating body will continue to heat due to dry burning. When the temperature switch component senses that the temperature of the heating body is higher than a preset value, the temperature switch component will control the heating body to be disconnected to avoid the heating body from continuing to heat and being burned out, which will affect the service life.

[0009] In one of the embodiments, the temperature switch component is arranged on the side of the base, and the heating component further comprises a first electrode pin and a second electrode pin, one end of the first electrode pin and the second electrode pin being connected to the heating body, and the other end of the first electrode pin and the second electrode pin being connected to the first electrode pin and the second electrode pin.

[0010] In one of the embodiments, the atomization assembly further comprises a housing structure, the housing structure is provided with a liquid storage compartment, an air exchange channel and an atomization channel, the liquid storage compartment is used for storing aerosol substrate, two ends of the atomization channel are communicated with external air, one end of the air exchange channel is communicated with the atomization channel, and the other end of the air exchange channel is capable of being communicated with the liquid storage compartment to release pressure of the liquid storage compartment; the housing structure is further provided with a storage cavity formed in an inner wall of the air exchange channel, and the storage cavity is used for storing condensed liquid formed by liquefaction of aerosol.

[0011] In one of the embodiments, the housing structure comprises an outer shell and a flow guide member connected with each other, the flow guide member is located inside the outer shell, the liquid storage compartment is arranged in the outer shell, and the flow guide member is provided with a flow guide channel communicated with the liquid storage compartment and the heating member, so that the aerosol substrate in the liquid storage compartment can flow to the heating member through the flow guide channel.

[0012] In one of the embodiments, the flow guide channel is provided with a flow guide slope, the flow guide slope is inclined with respect to the extension direction of the outer shell, one end of the flow guide slope close to the heating member is lower, and the other end of the flow guide slope close to the liquid storage compartment is higher.

[0013] In one of the embodiments, an outer wall of the flow guide member is provided with a pressure release channel, an air vent and the storage cavity, the storage cavity is located in a side wall of the pressure release channel, the flow guide member is provided with an air exchange cavity, one end of the pressure release channel is communicated with the liquid storage compartment, the other end of the pressure release channel is communicated with the air exchange cavity through the air vent, the air exchange cavity is communicated with the atomization channel and external air, and the pressure release channel, the air vent and the air exchange cavity form part of the air exchange channel.

[0014] In one of the embodiments, the storage cavity is provided in plurality, and the plurality of storage cavities are arranged at intervals along the extension direction of the pressure release channel.

[0015] In one of the embodiments, the housing structure further comprises a base, the base is provided with a plurality of air pressure balance grooves arranged at intervals and communicated with each other, and the plurality of air pressure balance grooves are all communicated with the air exchange cavity and the atomization channel, and the air pressure balance grooves are capable of storing condensed liquid formed by liquefaction of aerosol.

[0016] In one of the embodiments, the housing structure further comprises an intermediate member located between the base and the flow guide member, the intermediate member is provided with an intermediate hole communicated with the air exchange cavity and the air pressure balance grooves, and a receiving groove is formed in a side of the intermediate member facing the base, the receiving groove is located outside the air pressure balance grooves, and the air pressure balance grooves are communicated with the intermediate hole and the atomization channel.

[0017] The application also provides an atomization device, comprising a circuit board, a battery and an atomization assembly as described above, the battery is connected to the circuit board, the circuit board is connected to the temperature switch and the heating body, when the temperature switch senses that the temperature of the heating body is higher than a preset value, the circuit board controls the battery to be powered off. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic diagram of the atomization assembly of the application;

[0019] Figure 2 Fig. 2 is a structural schematic diagram of the atomization assembly of the application in the width direction;

[0020] Figure 3 Fig. 3 is an explosive structural schematic diagram of the atomization assembly of the application;

[0021] Figure 4 Fig. 4 is a structural schematic diagram of the packaging piece of the application;

[0022] Figure 5 Fig. 5 is a structural schematic diagram of the flow guide piece of the application from one perspective;

[0023] Figure 6 Fig. 6 is a structural schematic diagram of the flow guide piece of the application from another perspective;

[0024] Figure 7 Fig. 7 is a structural schematic diagram of the intermediate piece of the application from one perspective;

[0025] Figure 8 Fig. 8 is a structural schematic diagram of the intermediate piece of the application from another perspective;

[0026] Figure 9 Fig. 9 is a structural schematic diagram of the base of the application;

[0027] Figure 10 Fig. 10 is a circuit schematic diagram of the temperature switch, the heating body and the battery of the application;

[0028] Figure 11 Fig. 11 is a structural schematic diagram of the connection between the temperature switch and the heating body of the application. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the application more obvious and easy to understand, the specific embodiments of the application are described below in detail with reference to the drawings. Obviously, the specific details described below are only some embodiments of the application, and the application can also be implemented in many other embodiments different from those described herein. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the application.

[0030] It should be understood that when an element as a layer, region or plate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, it should be understood that when an element is referred to as being "connected" to or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0032] Reference Figure 1 The present application provides an atomization device capable of storing a certain amount of liquid aerosol substrate and heating and atomizing the aerosol substrate into an aerosol for a user to smoke.

[0033] The atomization device comprises an atomization assembly 100 and a power supply assembly connected together. The power supply assembly and the atomization assembly can be fixedly connected or detachably connected by magnetic attraction, clamping or the like, which is not limited herein. The power supply assembly is provided with a battery and a circuit board, which are electrically connected. When the power supply assembly is connected to the atomization assembly 100, the power supply assembly can supply power to the atomization assembly 100 through the battery, so that the atomization assembly 100 can heat and atomize the stored aerosol substrate into an aerosol.

[0034] Reference Figure 1 , Figure 2 and Figure 3 The atomization assembly 100 comprises a shell structure 101 and a heating structure 102, and the heating structure 102 is arranged inside the shell structure 101. The shell structure 101 is used for storing the aerosol substrate, and the heating structure 102 is used for heating and atomizing the aerosol substrate into an aerosol.

[0035] Reference Figure 3 The shell structure 101 comprises an outer shell 1, a packaging piece 2, a flow guide piece 3, an intermediate piece 4, a base 5 and a bottom shell 6, wherein the packaging piece 2 is sleeved on the flow guide piece 3, the flow guide piece 3 is connected to the intermediate piece 4, the intermediate piece 4 is connected to the base 5, the base 5 is connected to the bottom shell 6, and the bottom shell 6 is detachably connected to the outer shell 1 to package the packaging piece 2, the flow guide piece 3, the intermediate piece 4 and the base 5 inside the outer shell 1.

[0036] The end of the outer shell 1 away from the bottom shell 6 is a suction nozzle 11, which is duckbill-shaped to facilitate the user to suck with the mouth. It can be understood that in other embodiments, the suction nozzle 11 can also have other shapes, such as a cylindrical or elliptical cylindrical shape, which is not limited herein.

[0037] The outer shell 1 has first clamping flanges 12 on both sides of the end close to the bottom shell 6, which are used for clamping cooperation with the bottom shell 6 to connect the outer shell 1 with the bottom shell 6. It can be understood that in other embodiments, the outer shell 1 can also be detachably connected with the bottom shell 6 in other ways, such as magnetic attraction connection or screw connection, etc., which are not limited here.

[0038] The outer shell 1 is provided with a liquid storage compartment 13 for storing aerosol substrate. In addition, the liquid storage compartment 13 is also communicated with the heating structure 102, so that the heating structure 102 can heat and atomize the aerosol substrate into aerosol.

[0039] The outer shell 1 is provided with a ventilation column 14, which is provided with an air outlet channel 141 penetrating through both ends of the ventilation column 14 and close to the central axis of the outer shell 1. The air outlet channel 141 is communicated with the heating structure 102 and the outside of the outer shell 1, so that the aerosol generated by the heating structure 102 can flow out to the outside of the outer shell 1 through the air outlet channel 141 for the user to smoke.

[0040] Reference Figure 4 The packaging member 2 is provided with a first sealing ring 21 and a second sealing ring 22 along the circumferential side, and the first sealing ring 21 and the second sealing ring 22 are arranged in an upper and lower interval. The first sealing ring 21 and the second sealing ring 22 abut against the inner wall of the liquid storage compartment 13 to seal the inner wall of the liquid storage compartment 13, preventing the aerosol substrate in the liquid storage compartment 13 from flowing out from the inner wall. It can be understood that in other embodiments, the number of sealing rings can also be three or more, so that the sealing effect of the inner wall of the liquid storage compartment 13 is better.

[0041] The packaging member 2 is hollow, that is, it is provided with a first accommodating cavity 23. The packaging member 2 is made of silica gel material, so that the packaging member 2 has good elasticity and sealing capacity. When the packaging member 2 is sleeved on the flow guide member 3, the flow guide member 3 is located in the first accommodating cavity 23 of the packaging member 2.

[0042] The packaging member 2 is provided with a liquid outlet hole 24 and a first through hole 25, the liquid outlet hole 24 is communicated with the first accommodating cavity 23 and the liquid storage compartment 13, and the aerosol substrate in the liquid storage compartment 13 can flow to the first accommodating cavity 23 through the liquid outlet hole 24. The liquid outlet hole 24 has two, which are respectively located on both sides of the first through hole 25. It can be understood that in other embodiments, the liquid outlet hole 24 can also be one, three or more, which are not limited here.

[0043] The first through hole 25 is sealingly inserted with the ventilation column 14 Figure 2 (shown), to prevent the aerosol substrate in the liquid storage compartment 13 from leaking out. The ventilation column 14 has an air outlet channel 141 communicated with the first accommodating cavity 23.

[0044] Reference Figure 5 andFigure 6 The flow guide 3 is provided with a second through hole 31, which is hollow with both ends open. The two ends of the second through hole 31 are respectively communicated with the first through hole 25 and the heating structure 102. The aerosol generated by the heating structure 102 can flow into the air outlet channel 141 in sequence through the second through hole 31 and the first through hole 25.

[0045] The flow guide 3 is provided with a flow guide channel 32, which penetrates the flow guide 3 at both ends. One end of the flow guide channel 32 is communicated with the liquid outlet hole 24, and the other end is communicated with the heating structure 102. Therefore, the liquid storage compartment 13 is sequentially communicated with the liquid outlet hole 24, the flow guide channel 32 and the heating structure 102. The aerosol substrate in the liquid storage compartment 13 can flow to the heating structure 102 in sequence through the liquid outlet hole 24 and the flow guide channel 32, so that the heating structure 102 can heat and atomize the aerosol substrate flowing through it into aerosol.

[0046] The inner wall of the flow guide channel 32 is partially inclined, that is, the flow guide slope 321. The lower end of the flow guide slope 321 is close to the heating structure 102, so that the aerosol substrate is more easily guided to the heating structure 102 by the flow guide slope 321. The flow guide channel 32 has two, which are respectively located on both sides of the second through hole 31. In other embodiments, the flow guide channel 32 can also be provided with one, three or more than three, which is not limited here.

[0047] The outer wall of the flow guide 3 has four airway units 33, and two airway units 33 are respectively arranged on both sides of the flow guide 3. It can be understood that in other embodiments, the number of airway units 33 arranged on the flow guide 3 can also be one, two, three, five or more than five, which is not limited here.

[0048] Each airway unit 33 is communicated with the liquid storage compartment 13 and the heating structure 102. Since the heating structure 102 is also communicated with the air outside the shell 1 through the second through hole 31, the first through hole 25 and the air outlet channel 141, the airway unit 33 is communicated with the air outside the shell 1, that is, the liquid storage compartment 13 is communicated with the external air through the airway unit 33. As the heating structure 102 heats and atomizes the aerosol substrate, the aerosol substrate in the liquid storage compartment 13 gradually decreases, and the negative pressure formed in the liquid storage compartment 13 can be released through the airway unit 33 in turn, so that the aerosol substrate in the liquid storage compartment 13 can continue to flow to the heating structure 102 by its own gravity.

[0049] In addition, the airway unit 33 can also store a certain amount of liquid. When the aerosol generated by the heating structure 102 flows to the airway unit 33 to form condensate, the condensate can be stored in the airway unit 33, and at the same time the airway unit 33 can still continue to communicate the liquid storage compartment 13 and the external air, and the liquid storage compartment 13 can continue to release pressure.

[0050] The airway unit 33 comprises a pressure relief channel 331, and a first storage cavity 332, a second storage cavity 333, a third storage cavity 334, and a ventilation port 335 in communication with the pressure relief channel 331. The pressure relief channel 331 is in communication with the liquid storage compartment 13 and the ventilation port 335, and the ventilation port 335 is in communication with external air, so that the liquid storage compartment 13 can be relieved of pressure. The first storage cavity 332, the second storage cavity 333, and the third storage cavity 334 are arranged in an up-down manner, and the condensed liquid formed after the aerosol is liquefied in the pressure relief channel 331 can be stored in the first storage cavity 332, the second storage cavity 333, and the third storage cavity 334. Since the first storage cavity 332, the second storage cavity 333, and the third storage cavity 334 are not in the extension path of the pressure relief channel 331, even if multiple storage cavities store condensed liquid, the pressure relief channel 331 will not be blocked, and the liquid storage compartment 13 can still be in communication with external air. It should be emphasized that the number of storage cavities described above is not limited, and one, two, four, or more than four can also be provided, which is not limited herein.

[0051] The side of the flow guide 3 opposite to the flow guide channel 32 is provided with a ventilation cavity 34, and the ventilation cavity 34 is in communication with the ventilation port 335 and external air.

[0052] The two sides of the flow guide 3 also have a second clamping flange 35 for detachable clamping with the base 5.

[0053] Reference Figure 7 and Figure 8 The middle part of the intermediate piece 4 is provided with an airflow hole 41, which penetrates along the thickness direction of the intermediate piece 4, and the airflow hole 41 allows external air to flow into the intermediate piece 4.

[0054] The middle part of the intermediate piece 4 is provided with an airflow groove 42 around the airflow hole 41, and external air can flow into the airflow groove 42 through the airflow hole 41, and then flow from the airflow groove 42 to the heating structure 102 to carry out the aerosol generated by the heating structure 102.

[0055] The groove bottom of the airflow groove 42 is provided with two first mounting holes 43, which penetrate the intermediate piece 4 and are respectively used for penetrating and fixing the two electrode rods 9 Figure 3 The two electrode rods 9 are positive and negative, one end of the two electrode rods 9 is electrically connected to the heating structure 102, and the other end is exposed to the outside, which is used for connecting the battery in the power supply assembly, so that the battery supplies power to the heating structure 102 through the two electrode rods 9, so that the heating structure 102 generates heat.

[0056] The left and right ends of the intermediate piece 4 are both provided with intermediate holes 44, which penetrate the intermediate piece 4. The intermediate holes 44 are in communication with the ventilation cavity 34 and the base 5.

[0057] The intermediate piece 4 is provided with a containing groove 45 on one side facing away from the air flow groove 42, which can be used to contain a part of the electrode rod, facilitate positioning and installation of the electrode rod, and also provide more air flow space.

[0058] Reference Figure 9 The base 5 is provided with first clamping holes 51 on both sides, which are detachably clamped with the second clamping flanges 35 of the flow guide 3.

[0059] The base 5 is also provided with first air pressure balance grooves 52 and second air pressure balance grooves 53, both of which are two. The two first air pressure balance grooves 52 are respectively located on the left and right sides of the base 5, and the two second air pressure balance grooves 53 are respectively located on the left and right sides of the base 5. The first air pressure balance grooves 52 and the second air pressure balance grooves 53 located on the same side of the base 5 are arranged at intervals and are in communication with each other. When the base 5 is clamped and matched with the flow guide 3, the base 5 and the flow guide 3 can clamp and fix the intermediate piece 4 in the middle, and the first air pressure balance grooves 52 are in communication with the middle hole 44.

[0060] The base 5 is also provided with air inlet holes 54, the number of which is nine and arranged in an array. It can be understood that the number of air inlet holes 54 can also be other numbers, and the arrangement mode can be arranged in other ways, such as a circular array, which is not limited here.

[0061] The air inlet holes 54 penetrate through the base 5, and the air inlet holes 54 are in communication with the second air pressure balance grooves 53, so the liquid storage bin 13 can sequentially pass through the pressure relief channel 331, the air inlet 335, the air exchange cavity 34, the middle hole 44, the first air pressure balance groove 52, the second air pressure balance groove 53, and the air inlet hole 54 to be in communication with the external air, thereby being relieved of pressure, and the aerosol substrate in the liquid storage bin 13 can flow smoothly to the heating structure 102 by its own gravity.

[0062] It needs to be emphasized that the containing groove 45 of the intermediate piece 4 is still a certain distance away from the top of the first air pressure balance groove 52 and the second air pressure balance groove 53, and the middle hole 44 and the air inlet hole 54 are both in communication with the containing groove 45. Therefore, even if the first air pressure balance groove 52 and the second air pressure balance groove 53 are filled with condensate, the communication between the middle hole 44 and the external air will not be blocked, so as not to affect the communication of the liquid storage bin 13 with the external air.

[0063] The base 5 is also provided with second mounting holes 55, the number of which is two, and the two second mounting holes 55 are respectively in communication with the two first mounting holes 43. One end of the two electrode rods 9 can sequentially pass through the first mounting hole 43 and the second mounting hole 55 to be exposed to the outside. When the power supply assembly is connected with the atomization assembly 100, the two electrode rods 9 are electrically connected with the battery of the power supply assembly.

[0064] The base 5 is provided with a mounting groove 56 along the circumferential side, and a sealing ring 57 is sleeved on the mounting groove 56. The sealing ring 57 is made of silica gel and is used to abut against the inner wall of the bottom shell 6 to prevent air leakage in the base 5.

[0065] Referring to Figure 3 , the bottom shell 6 is provided with a second accommodating cavity 61, which is closed at one end and open at the other end. The second accommodating cavity 61 is used to accommodate the base 5, and the sealing ring 57 on the base 5 is tightly attached to the cavity wall of the second accommodating cavity 61 to ensure the sealing property of the base 5.

[0066] The bottom shell 6 is provided with second clamping holes 62 on both sides, which are used to be clamped and matched with the first clamping flange 12 of the shell 1, so as to encapsulate a plurality of other components.

[0067] Referring to Figure 2 and Figure 3 , the heating structure 102 includes the heating element 7, the gasket 8, the temperature switch element 10, and the two electrode rods 9 mentioned above. The heating element 7 is arranged between the gasket 8 and the two electrode rods 9. One end of each of the two electrode rods 9 is connected to the positive and negative poles of the heating element 7. The gasket 8 is made of silica gel or other elastic materials. The two ends of the gasket 8 abut against the heating element 7 and the flange of the flow guide element 3, respectively, so as to have a buffering effect on the heating element 7. The temperature switch element 10 is connected to the heating element 7. The temperature switch element 10 can sense the temperature of the heating element 7. When the temperature of the heating element is higher than a preset value, the temperature switch element 10 controls the heating element to be disconnected, so as to prevent the continuous heating of the heating element 7 from affecting the service life.

[0068] A third through hole 81 is formed in the middle part of the gasket 8 and communicates with the flow guide channel 32 of the flow guide element 3 and the heating element 7, so that the aerosol substrate can flow to the heating element 7 through the third through hole 31, and then the heating element 7 can heat and atomize the aerosol substrate into aerosol after being electrified.

[0069] The middle part of the electrode rod 9 is provided with a positioning protrusion 91 along the circumferential side Figure 3 shown), which is clamped in the accommodating groove 45 of the intermediate element 4. The intermediate element 4 cooperates with the base 5 to clampingly position the positioning protrusion 91, so as to position the electrode rod 9. When the electrode rod 9 is fixed, the electrode rod 9 cooperates with the gasket 8 to clampingly fix the heating element 7.

[0070] The heating element 7 includes a base 71 and a heating body 72 arranged in layers. The heating body 72 can be formed by laying slurry on the surface of the base 71 through a silk printing process and then sintering, so that the stability of the connection between the heating body 72 and the base 71 is good.

[0071] The base body 71 can be made of ceramic material, so that the base body 71 has good permeability, and the aerosol substrate can quickly permeate from one end of the base body 71 to the end with the heating body 72, so that the heating body 72 heats and atomizes the aerosol substrate close to it.

[0072] Reference Figure 10 And Figure 11 The temperature switch 10 is arranged on the side of the base body 71, and the two ends of the temperature switch 10 are connected to the heating body 72 and the two electrode rods 9 at the same time, and the two electrode rods 9 are connected to the battery, so the temperature switch 10 is equivalent to being connected to the battery. When the heating body 72 is short of aerosol substrate, the heating body 72 will continue to heat up due to dry burning, and the temperature switch 10 can sense the temperature of the heating body 72 in real time. When the temperature of the heating body 72 is higher than the preset value, the temperature switch 10 will be in a closed state, at which time the heating body 72 is in a short-circuit state, and the circuit board detects that the current of the battery suddenly increases, and the circuit board controls the battery to be disconnected, avoiding the heating body 72 from continuing to heat up and being burned out.

[0073] It should be emphasized that the heating body 72 is arranged on multiple surfaces of the base body 71, so as to facilitate the connection of the heating body 72 to the electrode rod 9 and the temperature switch 10.

[0074] It should be emphasized that there is a gap between the heating element 7 and the inner wall of the flow guide 3, which communicates the airflow hole 41 and the air outlet passage 141. The aerosol generated by the heating element 7 can flow out of the air outlet passage 141.

[0075] It should be noted that the above-mentioned air inlet hole 54, airflow hole 41, airflow groove 42, second through hole 31, and air outlet passage 141 collectively constitute an atomization channel. It can be understood that the length extension direction of the atomization channel is arranged in parallel with the length extension direction of the shell 1, and both ends of the atomization channel are communicated with the outside air of the shell 1. When the user sucks the mouthpiece 11 with the mouth, the outside air can enter the atomization channel through the air inlet hole 54, and after the airflow is mixed with the aerosol generated by the heating element 7, it enters the user's mouth through the air outlet passage 141.

[0076] The second air pressure balance groove 53, the first air pressure balance groove 52, the middle hole 44, the air exchange cavity 34, the air vent 335, and the pressure relief passage 331 form an air exchange channel. It can be understood that one end of the air exchange channel 16 is communicated with the liquid storage compartment 13, and the other end is communicated with the atomization channel. Since the atomization channel is communicated with the outside air, the air exchange channel is also communicated with the outside air, and the liquid storage compartment 13 is relieved of pressure.

[0077] Any combination of the technical features in the above embodiments can be made, and for the sake of brevity, not all possible combinations are described above. However, any combination of features described above is deemed to be within the scope of the present disclosure, as long as such a combination is not obviously contradictory.

[0078] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, several modifications, replacements and improvements can be made without departing from the concept of the present application, and these should be covered within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the claims.

Claims

1. An atomizing assembly, characterized in that, The application relates to a heating device for an aerosol generating device, comprising: a heating element, comprising a base and a heating body connected to each other, the base being used for permeating an aerosol substrate to the vicinity of the heating body so that the heating body heats and atomizes the aerosol substrate in the vicinity to form an aerosol; a temperature switch connected to the heating body, the temperature switch being capable of sensing the temperature of the heating body, and when the temperature of the heating body is higher than a preset value, the temperature switch controls the heating body to be disconnected; a shell structure, the shell structure being provided with a liquid storage compartment, an air exchange channel and an atomization channel, the liquid storage compartment being used for storing the aerosol substrate, two ends of the atomization channel being communicated with external air, one end of the air exchange channel being communicated with the atomization channel, and the other end of the air exchange channel being communicated with the liquid storage compartment so as to release pressure of the liquid storage compartment; the shell structure further comprises a flow guide element, the flow guide element being provided with an air exchange cavity, and the air exchange cavity being communicated with the atomization channel and external air; an outer wall of the flow guide element is provided with a plurality of air passage units, the air passage units comprising: a pressure release channel, which is provided on the outer wall of the flow guide element and is recessed inwardly; an air inlet, which is provided on one end of the pressure release channel away from the liquid storage compartment and is communicated with the air exchange cavity; a first storage cavity, which is provided on one end of the pressure release channel close to the liquid storage compartment; a second storage cavity, which is provided on a side wall of the pressure release channel and is recessed inwardly; and a third storage cavity, which is provided on the other side wall of the pressure release channel and is recessed inwardly; the first storage cavity, the second storage cavity and the third storage cavity are arranged at intervals along the extension direction of the pressure release channel; one end of the pressure release channel is communicated with the liquid storage compartment, and the other end of the pressure release channel is communicated with the air exchange cavity through the air inlet, the pressure release channel, the air inlet and the air exchange cavity form part of the air exchange channel, the first storage cavity, the second storage cavity and the third storage cavity form a storage cavity, and the storage cavity is used for storing condensed liquid formed by the aerosol liquid.

2. The atomization assembly of claim 1, wherein, The temperature switch is arranged on the side of the base, the heating element further comprises a first electrode needle and a second electrode needle, one end of the first electrode needle and the second electrode needle is connected to the heating body, and the other end of the first electrode needle and the second electrode needle is connected to the first electrode needle and the second electrode needle.

3. The atomizing assembly of claim 1 or 2, wherein, The shell structure further comprises a shell connected to each other, the flow guide element is located in the shell, the shell is provided with the liquid storage compartment, the flow guide element has a flow guide channel, the flow guide channel is communicated with the liquid storage compartment and the heating element, so that the aerosol substrate in the liquid storage compartment can flow to the heating element through the flow guide channel.

4. The atomization assembly of claim 3, wherein, The flow guide channel has a flow guide slope, the flow guide slope is inclined relative to the extension direction of the shell, one end of the flow guide slope close to the heating body is lower, and the other end of the flow guide slope close to the liquid storage compartment is higher.

5. The atomization assembly of claim 4, wherein, The shell structure further comprises a base, the base has a plurality of air pressure balance grooves arranged at intervals and communicated with each other, the plurality of air pressure balance grooves are communicated with the air exchange cavity and the atomization channel, and the air pressure balance grooves can store condensed liquid formed by the aerosol liquid.

6. The atomization assembly of claim 5, wherein, The shell structure further comprises an intermediate piece between the base and the flow guide, the intermediate piece is provided with an intermediate hole, the intermediate hole is communicated with the ventilation cavity and the air pressure balance groove; the side of the intermediate piece facing the base is provided with a containing groove, the containing groove is located outside the air pressure balance groove, and the air pressure balance groove is communicated with the intermediate hole and the atomization channel.

7. An atomising device characterised in that The aerosol generating assembly comprises a circuit board, a battery and the aerosol generating assembly according to any one of claims 1-6, the battery is connected to the circuit board, the circuit board is connected to the temperature switch and the heating body, and when the temperature switch senses that the temperature of the heating body is higher than a preset value, the circuit board controls the battery to be powered off.

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