CN218303454U - Heating assembly and electronic atomization device - Google Patents

Abstract

The utility model discloses a heating element and electronic atomization device, which is used for heating and atomizing low-temperature non-combustible herbaceous substances, wherein the heating element comprises a shell and a ceramic heating body, a first holding cavity and a second holding cavity which are communicated are arranged in the shell, the first holding cavity is used for placing herbaceous substances, the shell is also provided with at least one air inlet, and the air inlet is communicated with the second holding cavity; the ceramic heating body is installed in the second and holds the chamber, is provided with at least one airflow channel in the ceramic heating body, and airflow channel is linked together the setting with first chamber, the air inlet of holding respectively, and airflow channel is for buckling the structure setting repeatedly, and airflow channel includes two at least passageways of buckling, end to end between the adjacent passageway of buckling. Herbaceous class material utilizes hot-air to carry out indirect heating, can improve the homogeneity of heating, and the difficult high temperature oxidation of ceramic heat-generating body, long service life, and the free from extraneous odour is favorable to guaranteeing that the use that the suction taste can promote the user is experienced.

Description

Heating assembly and electronic atomization device

Technical Field

The utility model relates to an electronic atomization technical field, concretely relates to heating element and electronic atomization device.

Background

The electronic atomizer without burning at low temperature heats herbaceous matter at 200-400 deg.c to form aerosol capable of being sucked. Because of the low working temperature, the content of harmful components in the aerosol formed by the electronic atomization device is relatively low, which is more beneficial to ensuring the personal health of users and gradually starts to be accepted by the market.

At present, the heating modes of the low-temperature non-combustible electronic atomization device generally comprise contact heating and non-contact heating. Contact heating means that the metal heat-generating body directly contacts with herbaceous class material, through heating the metal heat-generating body promptly, heats the atomizing to herbaceous class material through heat conduction or the mode of heat radiation with the heat that the metal heat-generating body produced, for example: the inner inserting heating plate or the peripheral heating are both contact heating. The non-contact heating means that the metal heating element is not in contact with the herbaceous substance, namely the metal heating element in the air exchanger is used for heating the outside air, and then the heated air is conducted to the herbaceous substance so as to heat and atomize the herbaceous substance.

However, since the herbaceous substance is baked at a baking temperature of 310 + -10 deg.C, the metal heater is required to operate at a temperature much higher than the baking temperature of the herbaceous substance. The melting point of the metal heating element is low, so that the metal heating element is partially oxidized due to high temperature under the condition of high-power heating, thereby generating burnt smell or metal taste, influencing the service life and taste experience, and being not beneficial to the health of a user.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a heating element and electron atomizing device has solved metal heat-generating body and can lead to the part to be by the oxidation because of high temperature under the high-power condition of generating heat to produce and stick with paste flavor or metallic taste, influence life and taste and experience, also do not contribute to user's healthy technical problem simultaneously.

In order to solve the technical problem, the utility model provides a heating element for the herb class material of heating atomizing low temperature incombustible includes:

the device comprises a shell, a first accommodating cavity and a second accommodating cavity, wherein the first accommodating cavity and the second accommodating cavity are communicated with each other;

the ceramic heating element is installed in the shell and located the second holds the cavity, be provided with in the ceramic heating element and link up at least one airflow channel inside the ceramic heating element, airflow channel respectively with first hold the cavity the air inlet is linked together and sets up, wherein, airflow channel is for buckling the structure setting repeatedly, airflow channel includes two at least passageways of buckling, and is adjacent buckle between the passageway end to end.

Adopt foretell scheme, after ceramic heat-generating body circular telegram generates heat, can heat the air among the airflow channel that the setting was buckled repeatedly in the ceramic heat-generating body, and the air after the heating flows into on the first herbaceous class material that holds the intracavity, with to the herbaceous class material heating atomization, and increased the dwell time of air in the airflow channel that the structure set up of buckling repeatedly, increased the heat time of air promptly, also can ensure that the temperature after the air heating can reach the temperature of heating atomizing herbaceous class material. Like this, different from the metal heating body, the melting point of ceramic heating body is higher for the ceramic heating body also can not lead to the part to be oxidized because of high temperature under the condition that high-power generates heat, thereby can not produce burnt flavor or metallic taste, has improved the life of atomizing core, also is favorable to user's health. In addition, the herbal class material utilizes the air after the heating of ceramic heat-generating body to carry out indirect heating, and compared with traditional direct heating scheme, the diffusion capacity of hot-air is stronger, can permeate each position of herbal class material fast relatively, can improve the homogeneity of heating to can improve the formation of the aerosol that can aspirate, and be favorable to guaranteeing the suction taste, experience in order to promote user's use.

Optionally, each bent channel is bent along a radial direction of the housing, and the whole airflow channel extends along an axial direction of the housing; or, each bent channel is bent along the axial direction of the shell, and the whole airflow channel extends along the radial direction of the shell.

Optionally, the ceramic heat generating body includes:

the heating substrate is internally provided with the airflow channel;

and the heat insulation layer is positioned on the outer wall surface of the heating matrix.

Optionally, the heating substrate is made of dense conductive ceramic, and the insulating layer is made of heat-insulating ceramic or heat-insulating plastic.

Optionally, the extending direction of the airflow channel is a linear direction; alternatively, the extending direction of the airflow channel is a non-linear direction.

Optionally, the ceramic heating element comprises a first split body and a second split body, and the first split body and the second split body can be butted; the first split body and the second split body are both provided with concave cavities, and the concave cavities of the first split body and the second split body are butted to form the airflow channel; or one of the first and second sub-bodies is provided with a concave cavity, and the other of the first and second sub-bodies and the concave cavity enclose to form the airflow channel.

Optionally, the ceramic heating body still be provided with the portion of admitting air and the portion of giving vent to anger of the tube-shape that the ceramic heating body is connected, the portion of admitting air be used for the intercommunication the air inlet with airflow channel, the portion of giving vent to anger be used for the intercommunication airflow channel with first chamber of holding.

Optionally, a switch valve member is further disposed in the housing, and the switch valve member is located between the air inlet and the ceramic heating element and is used for switching on or off a channel between the air inlet and the airflow channel.

Optionally, the switching valve member comprises: the valve body is internally provided with a valve cavity, the valve body is provided with an inlet and an outlet which penetrate through the valve cavity, the inlet is communicated with the air inlet, and the outlet is communicated with the airflow channel; the fixing piece is positioned in the valve cavity and is connected with the inner wall of the valve body; and the valve member is positioned in the valve cavity, is rotatably connected to the fixing member and is used for conducting or cutting off the passages of the inlet and the outlet.

Optionally, the valve is a soft rubber air curtain or a soft silica gel air curtain.

The utility model also provides an electronic atomization device, including shell, heating element and automatically controlled subassembly, heating element with automatically controlled subassembly all sets up inside the shell, heating element is the heating element in the above-mentioned description, automatically controlled subassembly with the heating element electricity is connected.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of an electronic atomization device provided in the present disclosure;

FIG. 2 is a schematic view of a heating assembly of the electronic atomizer shown in FIG. 1;

FIG. 3 is a schematic view of the switching valve member of the heating assembly shown in FIG. 2 in a closed state;

FIG. 4 is a schematic view of the switching valve member shown in FIG. 3 in an open state;

FIG. 5 is a schematic structural view showing one embodiment of a ceramic heat generating body in the heating module shown in FIG. 2;

FIG. 6 is a split view of FIG. 5;

FIG. 7 is a cross-sectional view of FIG. 5;

FIG. 8 is a schematic structural view of another embodiment of a ceramic heat-generating body in the heating unit shown in FIG. 2;

FIG. 9 is a schematic diagram of one embodiment of an airflow channel;

FIG. 10 is a schematic structural view of another embodiment of an airflow passage;

FIG. 11 is a schematic structural view of yet another embodiment of an airflow passage.

The reference numerals in fig. 1-11 are illustrated as follows:

100 heating components and 200 electric control components;

1 case, 11 first case portion, 111 first accommodation chamber, 112 first communication passage, 12 second case portion, 121 second accommodation chamber, 122 intake port, 123 second communication passage, 13 cover plate;

2, a ceramic heating element, 2a first split body, 2a-1 concave cavity, 2b a second split body, 21 heating base body, 211 airflow channel, 211a bending channel, 22 heat preservation layer, 23 air inlet part, 24 air outlet part, 25 anode pin and 26 cathode pin;

3 switching valve parts, 31 valve bodies, 311 valve cavities, 312 inlets, 313 outlets, 32 fixing parts and 33 valve parts;

4, a power supply;

5 a control module;

6, a shell;

7 herbaceous substances.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the embodiments of the present invention, it should be noted that unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "mounted" are to be construed broadly, e.g., "connected" may or may not be detachably connected; may be directly connected or may be indirectly connected through an intermediate. The term "fixedly connected" means that they are connected to each other and their relative positional relationship is not changed after the connection. "rotationally coupled" means coupled to each other and capable of relative rotation after being coupled. "slidably connected" means connected to each other and capable of relative sliding movement after being connected.

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout, and wherein like reference numerals refer to like elements throughout. In addition, the term "plurality" as used herein means two or more unless otherwise specified in the present application.

In the description of the embodiments of the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.

As shown in fig. 1, the utility model provides an electronic atomization device, including shell 6, heating element 100 and automatically controlled subassembly 200 all set up inside shell 6. The housing 6 forms an external structure of the electronic atomization device, and can be used for accommodating and protecting the internal heating assembly 100, the electronic control assembly 200 and the like, and can be conveniently held by a user.

The shape, material, etc. of the housing 6 are not limited thereto, and those skilled in the art can determine the shape by referring to the related art in the specific practice.

The heating assembly 100 is used to heat the herbal substance 7 to form an aerosol that can be inhaled by a user. The electronic control assembly 200 is used for controlling the heating assembly 100, and can adjust the operation mode of the heating assembly 100.

Specifically, the electronic control assembly 200 may include a power supply 4 and a control module 5, and the control module 5 is electrically connected to the power supply 4 and the heating assembly 100, respectively. The power supply 4 may be embodied as a battery, such as a dry cell battery, a rechargeable battery, or the like, for providing electrical support. The control module 5 may be a circuit board, and may integrate electronic components such as a processor, etc. thereon, and is used for sending a control instruction to the heating assembly 100 to control the heating assembly 100 to operate in a set operating mode, for example, the control module may control the on/off of the ceramic heating element, the heating temperature, etc.

The circuit structure between the electric control assembly 200 and the heating assembly 100 may not be limited, and in practical applications, those skilled in the art may refer to the related art. In an exemplary aspect, the heating assembly 100 may be provided with three electrodes. For example, a positive electrode and two negative electrodes are provided, and all three electrodes can be connected with the electronic control assembly 200 to form two current paths; one of the two current paths may be a low power path for low temperature preheating and the other may be a high power path for high temperature heating. According to the difference of the power selected by the user, two current paths can work respectively, also can work simultaneously, when two current paths work simultaneously, the utility model provides a heating element 100 can provide bigger heating power.

The herbaceous substance 7 may be a low-temperature non-combustible tobacco product, or may be other types of aerosol-generating products, which may be determined according to the actual use requirements of the user, and the embodiment is not particularly limited thereto.

The low-temperature non-combustible tobacco product mainly refers to an aerosol generating product made of materials such as tobacco shreds, tobacco particles, plant fragments, tobacco essence, propylene glycol and the like, the shape of the aerosol generating product is generally columnar (such as cylindrical), so that the aerosol generating product is also called a low-temperature non-combustible cigarette, and volatile substances such as nicotine and other aromatic substances in the aerosol generating product can volatilize under the condition of heating at low temperature without generating solid particles and only generates atomized steam. It will be understood that low temperatures as used herein refers to temperatures which enable herbs to produce aerosols without combustion, and are typically in the range of 200 ℃ to 400 DEG C

In addition, in a specific application, the shape of the herbal substance 7 may be fixed, for example, it may be a cylindrical cigarette, or the shape of the herbal substance 7 may also be unfixed, for example, it may be loose cut tobacco or paste-like atomized substance, and the embodiment of the present invention does not specifically limit this.

It is to be understood that the above illustrated structure does not constitute a specific limitation on the electronic atomization device. In other embodiments of the present invention, the electronic atomizer may include more or fewer components than those shown, or some components may be combined, some components may be separated, or different arrangements of components may be used.

Referring to fig. 2 to 8, the heating assembly 100 includes a housing 1 and a ceramic heating element 2, wherein a first accommodating cavity 111 and a second accommodating cavity 121 are disposed in the housing 1, the first accommodating cavity 111 is used for accommodating the herbal substances 7, the housing 1 is further provided with at least one air inlet 122, and the air inlet 122 is communicated with the second accommodating cavity 121 and is used for conducting outside air into the second accommodating cavity 121. The ceramic heating element 2 is mounted on the casing 1 and located in the second accommodating cavity 121, at least one airflow channel 211 penetrating through the inside of the ceramic heating element 2 is arranged in the ceramic heating element 2, and the airflow channel 211 is respectively communicated with the first accommodating cavity 111, the air inlet 122 and the airflow channel 211. Wherein, airflow channel 211 is for the structure setting of buckling repeatedly, and airflow channel 211 includes two at least buckling channel 211a, and end to end between the adjacent buckling channel 211 a. In this embodiment, the air inlet 122 is communicated with the first receiving chamber 111 through an air flow passage 211 penetrating the ceramic heating element 2.

In actual use, the herb-like substance 7 is placed in the first containing chamber 111, the ceramic heating element 2 is disposed in the second containing chamber 121, and the ceramic heating element 2 and the herb-like substance 7 are not in direct contact. In this way, the air flow path 211 of the repeated bending structure is formed in the ceramic heating element 2, so that the air entering from the air inlet 122 can be heated in the air flow path 211, and then the heated air is conducted to the first accommodating chamber 111 communicated with the air flow path 211, so that the heated air heats the herbal matters 7 in the first accommodating chamber 111.

In this embodiment, the case 1 and the ceramic heating element 2 are provided, the first accommodating chamber 111 and the second accommodating chamber 121 which are communicated with each other are provided in the case 1, and at least one air inlet 122 is provided in the case 1, so that the air inlet 122 and the second accommodating chamber 121 are communicated with each other. Ceramic heat-generating body 2 is located the second and holds chamber 121, be provided with in the ceramic heat-generating body 2 and link up at least one airflow channel 211 inside ceramic heat-generating body 2, airflow channel 211 respectively with first chamber 111 that holds, air inlet 122 and airflow channel 211 are linked together and set up, and airflow channel 211 is for relapseing the structure setting of buckling, airflow channel 211 includes two at least passageway 211a of buckling, end to end between the adjacent passageway 211a of buckling, make ceramic heat-generating body 2 when heating the air in airflow channel 211, the dwell time of air in ceramic heat-generating body 2 can be longer, the heat time of air has been increased promptly, also can ensure that the temperature after the air heating can reach the temperature of heating atomizing herbaceous class material 7. In this way, after the ceramic heating element 2 is powered on to generate heat, the air in the air flow channel 211 in the ceramic heating element 2 can be heated, and the heated air flows into the herbal substances in the first accommodating cavity 111 to heat and atomize the herbal substances. Like this, be different from the metal heating body, the melting point of ceramic heating body 2 is higher for ceramic heating body 2 also can not lead to the part to be oxidized because of high temperature under the condition that high-power generates heat, thereby can not produce burnt flavor or metallic taste, has improved the life of atomizing core, also is favorable to user's health.

In addition, herbaceous class material 7 utilizes the air after the heating of ceramic heat-generating body 2 to carry out indirect heating, and compared with traditional direct heating scheme, the diffusion capacity of hot-air is stronger, can permeate each position of herbaceous class material 7 relatively fast, can improve the homogeneity of heating to can improve the formation volume of the aerosol that can aspirate, and be favorable to guaranteeing the suction taste, experience in order to promote user's use.

Known from the above embodiment, the embodiment of the present invention provides an airflow channel 211 is a repeated bending structure, and airflow channel 211 includes at least two bending channels 211a, and the adjacent bending channels 211a are connected end to end.

Specifically, in some structural designs, as shown in fig. 9, each bent passage 211a is bent in the radial direction of the housing 1, and the air flow passage 211 extends in the axial direction of the housing 1 as a whole. Here, the radial direction of the case 1 is the left-right direction of the ceramic heating element 2, the axial direction of the case 1 is the up-down direction (the up-down and left-right directions refer to the marks in fig. 9) of the ceramic heating element 2, that is, each bent passage 211a is bent toward the left direction or the right direction of the ceramic heating element 2, and the air flow passage 211 as a whole extends in the up-down direction or the down direction of the ceramic heating element 2.

In this embodiment, the airflow channel 211 is formed by combining at least two bent channels 211a, and adjacent bent channels 211a are connected end to end. With reference to fig. 9, the head end of the bending passage 211a located at the bottom of the ceramic heating element 2 is used for being communicated with the air inlet 122, the tail end of the bending passage 211a is bent to the right and then communicated with the head end of the last to last bending passage 211a, and the tail end of the last to last bending passage 211a is bent to the left and then communicated with the head end of the last to last bending passage 211a, so as to analogize, the tail end of the bending passage 211a located at the top is used for being communicated with the first accommodating cavity 111, thus, the air flow passage 211 can penetrate through the inside of the ceramic heating element 1, so that the air inlet 122 is communicated with the first accommodating cavity 111 through the air flow passage 211.

The arrangement mode of the air flow channel 211 is used for increasing the retention time of the air in the ceramic heating element 2, so that when the ceramic heating element 2 heats the air in the air flow channel 211, the heating time of the air is increased, the temperature of the air is increased, and the temperature of the heated air can reach the temperature of the heated and atomized herbaceous substance 7.

In other structural designs, referring to fig. 10, each of the bent passages 211a is bent along the axial direction of the housing 1, and the whole of the air flow passage 211 extends along the radial direction of the housing 1. The arrangement of the airflow channel 211 in this embodiment is similar to the arrangement of the airflow channel 211 in the above embodiments, and the same technical effects as the airflow channel 211 in the above embodiments can be achieved.

It should be noted that the inlet of the air flow channel 211 may also penetrate through the left end side wall or the right end side wall of the ceramic heating element 2 (the left and right direction may be as shown in fig. 2, 9 or 10, but the embodiment in which the inlet of the air flow channel 211 is located on the left end side wall or the right end side wall of the ceramic heating element 2 is not shown), and the outlet of the air flow channel 211 may also penetrate through the left end side wall or the right end side wall of the ceramic heating element 2, which is not limited herein.

In this embodiment, the number of the airflow channels 211 can be set to be plural, and the arrangement mode can adopt the arrangement mode in fig. 9 and the arrangement mode in fig. 10, for example, as shown in fig. 11, the arrangement mode in fig. 9 is adopted for the upper half part of the ceramic heating element 2, and the arrangement mode in fig. 10 is adopted for the lower half part of the ceramic heating element 3, and thus, the technical effects achieved in the above embodiments can also be achieved. Of course, the airflow channel 211 in this embodiment is not limited to the three arrangement manners, and may also be a combination of multiple trapezoidal channels or a combination of spiral channels, and the like, and is not limited herein.

Further, as shown in fig. 5 to 7, the ceramic heat-generating body 2 may include a heating base 21, the inside of which may be formed with the aforementioned air flow passage 211 for conducting air from the air inlet 122 to the first receiving chamber 111, and the air in the air flow passage 211 may be heated by the ceramic heat-generating body 2.

In some exemplary embodiments, the heating substrate 21 may be a dense conductive ceramic, and a positive terminal 25 and a negative terminal 26 (shown in fig. 7) may be led out from the dense conductive ceramic for electrical connection of the heating substrate 21. The positive electrode terminal 25 and the negative electrode terminal 26 may be made of metal or conductive ceramic, and the positive electrode terminal 25 and the negative electrode terminal 26 may be fixed on the heating substrate 21 by a pre-embedding process, a sintering process, and the like; alternatively, the positive electrode terminal 25, the negative electrode terminal 26, and the heating base 21 may be manufactured separately and then connected by welding, snapping, riveting, screwing, or the like, which is not limited herein.

As described above, the heating substrate 21 may be a heating element of a dense conductive ceramic body. Specifically, the heating base 21 is formed by sintering a dense conductive ceramic material, which may be a mixture of at least one of silicon carbide, silicon oxide, aluminum oxide, and zirconium oxide, and a conductive powder, and the material of the conductive powder may be at least one of titanium nitride, zirconium nitride, titanium carbonitride, titanium carbide, zirconium carbide, thallium carbide, hafnium carbide, titanium boride, zirconium boride, thallium boride, hafnium boride, molybdenum silicide, and tungsten carbide. The heating base 21 is a heating element obtained by sintering a dense conductive ceramic material, that is, the heating base 21 is used for generating heat.

In specific implementation, the shape of the heating substrate 21 may be regular or irregular, and for example, the heating substrate 21 is a column, a cone, a spiral, a trapezoid, a dumbbell, a concave, a sphere, etc., as long as it can heat air and conduct the heated air to the first accommodating cavity 111, and the embodiment of the present invention does not specifically limit this.

In some optional embodiments, the outer wall surface of the heating substrate 21 is further provided with an insulating layer 22. The heat-insulating layer 22 is used for heat insulation of the heating substrate 21, and can reduce heat loss in the process of electrifying and heating the heating substrate 21, thereby improving the heating efficiency of the ceramic heating body 2 to air. Moreover, the diffusion of heat generated by heating the substrate 21 to the housing 6 can be reduced, and the overheating of the housing 6 can be avoided to a greater extent, so that the condition of scalding hands is avoided, and the use experience of a user is improved.

The material of the insulating layer 22 is insulating, air-tight, high temperature resistant and non-toxic, for example, the material of the insulating layer 22 may be heat insulating ceramic, ceramic glaze, heat insulating plastic, etc. Of course, the heat-insulating layer 22 may also be made of other types of heat-insulating materials as long as the use requirement can be met, and the embodiment of the present invention does not specifically limit this.

In some embodiments, the insulating layer 22 and the heating substrate 21 may be integrally formed, for example, when the insulating layer 22 is made of insulating ceramic and the heating substrate 21 is made of dense conductive ceramic, the insulating layer 22 and the heating substrate 21 are integrally formed by a sintering process. Thus, the manufacturing process of the ceramic heating element 2 is relatively simple.

In other embodiments, the insulation layer 22 and the heating base 21 may be formed separately. For example, the insulating layer 22 and the heating substrate 21 may be prepared separately, and then assembled, specifically, the assembling method includes screw connection, clamping, riveting, and the like; alternatively, the heating substrate 21 may be prepared, and then the insulating layer 22 may be coated on the outer surface of the heating substrate 21.

The above-mentioned insulation layer 22 may not be present. For example, the thermal insulation function can be achieved by providing a thermal insulation material in the housing 1 or other positions in the casing 6.

Further, the case 1 may be a divided structure, as shown in fig. 2, the case 1 may include a divided first case portion 11 and a divided second case portion 12, the first case portion 11 may be formed with the aforementioned first accommodation cavity 111, and the second case portion 12 may be formed with the aforementioned second accommodation cavity 121. At this time, the processing of the housing 1 can be relatively easy.

The first shell portion 11 may be provided with a first communication passage 112, the second shell portion 12 may be provided with a second communication passage 123, and the first and second communication passages 112 and 123 may communicate to enable communication of the first and second accommodation chambers 111 and 121. It is understood that in practical applications, only one of the first communication channel 112 and the second communication channel 123 may be provided, for example, the end of the first shell portion 11 facing the second shell portion 12 is open, and in this case, only the second communication channel 123 is provided on the second shell portion 12; alternatively, the second housing portion 12 may be open at an end thereof, and in this case, the first communication passage 112 may be provided only in the first housing portion 11, as long as the communication state of the two accommodation chambers can be secured.

In other embodiments, the housing 1 may also be an integrated structure, and in this case, the housing 1 is an integrated component, which may facilitate installation. If the case 1 is an integral structure, the case 1 is hollow and through, and a baffle (not shown) is provided in the case 1, and the baffle is used for limiting when the ceramic heating element 2 is mounted, so as to prevent the ceramic heating element 2 from directly contacting the herbaceous substance 7 due to the deviation of the mounting position of the ceramic heating element 2.

With continued reference to fig. 2, the heating assembly 100 may further include a switch valve member 3, and the switch valve member 3 may be specifically located in the second receiving cavity 121, and may be defined by the ceramic heating element 2 and the cover plate 13.

The switching valve part 3 is provided between the air inlet 122 and the ceramic heating body 2 for opening or closing a passage between the air inlet 122 and the air flow passage 211. Specifically, in the non-suction state, the switching valve member 3 can be in the valve-closing state, so that the generated aerosol can be largely prevented from being discharged from the air inlet 122, and the problems of waste, smoke overflow and the like caused by the generated aerosol can be avoided; in the suction state, the opening/closing valve member 3 may be in an open state so that the outside air may enter the air flow passage 211 in the ceramic heating element 2 through the air inlet 122 and the opening/closing valve member 3, and when the ceramic heating element 2 is energized to generate heat, the air in the air flow passage 211 is heated.

Here, the embodiment of the present invention does not limit the kind of the switching valve member 3, and in practice, a person skilled in the art may select the switching valve member according to actual needs as long as the above technical effects can be achieved.

In some embodiments, the switching valve member 3 may be a bidirectional conduction valve, and in this case, a corresponding driving member may be provided to switch the use state of the switching valve member 3. The driving component can be a motor and the like, corresponding control switches can be arranged on the components such as the shell 6 of the electronic atomization device, the control switches can be in signal connection with the motor, the motor can be controlled to act by pressing the control switches, and then the switching between a valve opening state and a valve closing state can be realized.

In other embodiments, the switch valve member 3 can also be a check valve member, and since the check valve member itself can have a one-way conduction function, when the embodiment of the present invention is applied, there is no need to provide an additional driving member and a control switch, the number of parts can be relatively small, and the structure can be simplified.

As shown in fig. 3 and 4, in an exemplary embodiment, the switching valve member 3 may include a valve body 31, a valve member 33 and a fixing member 32, the valve body 31 has a valve cavity 311, the valve body 31 is opened with an inlet 312 and an outlet 313 penetrating into the valve cavity 311, the inlet 312 is communicated with the inlet 122, the outlet 313 is communicated with the air flow passage 211, the fixing member 32 is located in the valve cavity 311 and connected to an inner wall of the valve body 31, and the valve member 33 is located in the valve cavity 311 and rotatably connected to the fixing member 32 for connecting or disconnecting the passages of the inlet 312 and the outlet 313.

In the non-suction state, as shown in fig. 3, the valve member 33 can block the passage of the inlet 312 and the outlet 313 to close the inlet 312 and the outlet 313, so as to prevent the aerosol generated by the electronic atomization device from flowing back to the air inlet 122 from the outlet 313, the valve cavity 311 and the inlet 312.

In the suction state, as shown in fig. 4, the valve member 33 is rotated clockwise with the fixing member 32 as a rotation shaft to conduct the passages of the inlet 312 and the outlet 313, so that the passages of the inlet 312 and the outlet 313 can be communicated, so that the air enters from the air inlet 122 and is conducted into the air flow passage 211 of the ceramic heat-generating body 2 through the outlet 313.

In the embodiment of fig. 3, the valve member 33 and the valve body 31 are rotatably connected, and the valve member 33 can rotate relative to the valve body 31 to change its position in the valve cavity 311, so as to realize different functions. At this time, the fixing member 32 matched with the valve member 33 may be a torsion spring, the torsion spring may be sleeved on a rotating shaft assembled between the valve member 33 and the valve body 31, the torsion spring has two extending ends, one extending end may abut against the inner wall of the valve cavity 311, and the other extending end may abut against the valve member 33; in this embodiment, the rotational axis corresponds to the rotational center of the valve member 33.

The switching valve member 3 of the above-described configuration may be a check valve member. Specifically, when the user generates suction, negative pressure can be formed inside the housing 1, and the valve member 33 can rotate to the state shown in fig. 4 by itself under the action of the external atmospheric pressure so as to intake air, and in the process, the torsion spring can accumulate elastic potential energy. When the user stops pumping, the accumulated elastic potential energy of the torsion spring can be released to drive the valve member 33 to block the passage of the inlet 312 and the outlet 313. The valve 33 can be made of a soft rubber air curtain or a soft silica gel air curtain so as to rotate under the suction action of a user; of course, the valve element 33 may be made of other materials as long as it can meet the requirements of use.

In fact, the self-return of the valve element 33 may also be under the action of its own gravity, that is, the fixing element 32 is a non-elastic component, that is, the fixing element 32 does not accumulate elastic potential energy when the valve element 33 rotates. In this way, when the user stops the suction operation, the valve member 33 can rotate in the counterclockwise direction centering on the fixing member 32 only by its own weight until the passage of the inlet 312 and the outlet 313 is blocked.

It should be noted that in the above examples shown in fig. 3 and 4, when the valve member 33 is rotated clockwise, the passages of the inlet 312 and the outlet 313 are communicated. In other designs, the valve member 33 may be configured to rotate counterclockwise to open the passages of the inlet 312 and the outlet 313.

Alternatively, the switching valve member 3 of the above-described configuration may be a bidirectional conduction valve, in which case the operation form of the valve member 33 is not limited to rotation, the operation form of the valve member 33 may be linear displacement (not shown), and accordingly, the elastic member is not limited to a torsion spring, and the elastic member may be a linear spring.

As shown in fig. 6, in the embodiment of the present invention, the ceramic heating element 2 may be a split structure, including a first split body 2a and a second split body 2b, the first split body 2a and the second split body 2b can be connected to each other and form an air flow channel 211. By adopting the scheme, the airflow channel 211 with a complex structure and shape is more favorably formed, so that the airflow channel 211 can cover the surface area of the ceramic heating element 2 as much as possible, and the heat generated after the ceramic heating element 2 is electrified and heated is better utilized to heat the air in the airflow channel 211.

The first and second sub-bodies 2a and 2b may be provided with the cavities 2a-1, and then the cavities 2a-1 of the first and second sub-bodies 2a and 2b are butted to form the air flow passage 211. Alternatively, only one of the first and second divided bodies 2a and 2b may be provided with the cavity 2a-1, so that the above-described air flow passage 211 may be formed.

The ceramic heating element 2 may further be provided with a cylindrical inlet portion 23 and an outlet portion 24, wherein the inlet portion 23 is used for communicating the inlet 122 with the airflow channel 21, and the outlet portion 24 is used for communicating the airflow channel 211 with the first accommodating cavity 111. The internal passages of the inlet portion 23 and the outlet portion 24 may belong to a part of the gas flow passage 211, or may not belong to the gas flow passage 211. The arrangement of the air inlet part 23 and the air outlet part 24 can facilitate the butt joint of the ceramic heating element 2 and the upstream and downstream components, and particularly can facilitate the arrangement of sealing and the like.

As shown in fig. 8, in some other embodiments, the air inlet portion 23 and the air outlet portion 24 may not be present, and in this case, the structural form of the ceramic heating element 2 is more regular, so that the ceramic heating element 2 can be conveniently carried and installed, the occupied space can be reduced, and the structural compactness of the heating assembly 100 can be improved.

The positions of the two ports in the extending direction of the air flow channel 211 are not limited, and in particular practice, those skilled in the art can adjust the positions according to actual needs as long as the functions of the ceramic heating element 2 are not affected, and as shown in fig. 7 and 8, two different schemes are provided.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A heating assembly for heat atomizing low temperature non-combustible herbaceous matter, comprising:

the herbal medicine packaging box comprises a shell (1), wherein a first accommodating cavity (111) and a second accommodating cavity (121) which are communicated are arranged in the shell (1), the first accommodating cavity (111) is used for accommodating herbal substances (7), the shell (1) is further provided with at least one air inlet (122), and the air inlet (122) is communicated with the second accommodating cavity (121);

ceramic heating element (2), ceramic heating element (2) install in on casing (1), and be located the second holds in chamber (121), be provided with in ceramic heating element (2) and link up at least one airflow channel (211) of ceramic heating element (2) inside, airflow channel (211) respectively with first chamber (111) that holds air inlet (122) are linked together and set up, wherein, airflow channel (211) are the structure setting of buckling repeatedly, airflow channel (211) include two at least passageway (211 a) of buckling, and are adjacent buckle end to end between passageway (211 a).

2. The heating assembly according to claim 1, wherein each of the bent channels (211 a) is bent along a radial direction of the housing (1), and the air flow channel (211) extends entirely along an axial direction of the housing (1); or each bent channel is bent along the axial direction of the shell (1), and the airflow channel (211) extends along the radial direction of the shell (1) as a whole.

3. The heating assembly according to claim 2, wherein the ceramic exothermic body (2) comprises:

a heating base body (21), wherein the airflow channel (211) is formed in the heating base body (21);

and the heat insulation layer (22), wherein the heat insulation layer (22) is positioned on the outer wall surface of the heating base body (21).

4. A heating assembly according to claim 3, characterized in that the material of the heating base body (21) is a dense electrically conductive ceramic and the material of the insulating layer (22) is an insulating ceramic or an insulating plastic.

5. The heating assembly according to any one of claims 1 to 4, wherein the ceramic heat generating body (2) comprises a first division body (2 a) and a second division body (2 b), the first division body (2 a) and the second division body (2 b) being capable of abutting;

the first sub-body (2 a) and the second sub-body (2 b) are both provided with a concave cavity (2 a-1), and the concave cavity (2 a-1) of the first sub-body (2 a) and the concave cavity (2 a-1) of the second sub-body (2 b) are butted to form the airflow channel (211); or,

one of the first split body (2 a) and the second split body (2 b) is provided with a concave cavity (2 a-1), and the other of the first split body (2 a) and the second split body (2 b) and the concave cavity (2 a-1) enclose to form the air flow channel (211).

6. The heating assembly according to any one of claims 1 to 4, wherein the ceramic heating element (2) is further provided with a cylindrical air inlet part (23) and an air outlet part (24) connected with the ceramic heating element (2), the air inlet part (23) is used for communicating the air inlet (122) and the air flow channel (211), and the air outlet part (24) is used for communicating the air flow channel (211) and the first accommodating cavity (111).

7. The heating assembly according to any one of claims 1 to 4, wherein a switching valve member (3) is further provided in the case (1), the switching valve member (3) being located between the air inlet (122) and the ceramic heat generating body (2) for opening or closing a passage between the air inlet (122) and the air flow passage (211).

8. A heating assembly according to claim 7, wherein the switching valve member (3) comprises:

the valve body (31), a valve cavity (311) is formed in the valve body (31), an inlet (312) and an outlet (313) penetrating through the valve cavity (311) are formed in the valve body (31), the inlet (312) is communicated with the air inlet (122), and the outlet (313) is communicated with the air flow channel (211);

the fixing piece (32) is positioned in the valve cavity (311) and is connected with the inner wall of the valve body (31);

and the valve member (33) is positioned in the valve cavity (311) and is rotatably connected to the fixing member (32) and used for conducting or blocking the passages of the inlet (312) and the outlet (313).

9. The heating assembly according to claim 8, wherein the valve member (33) is a soft rubber curtain or a soft silicone curtain.

10. An electronic atomisation device comprising a housing (6), a heating assembly (100) and an electronic control assembly (200), the heating assembly (100) and the electronic control assembly (200) being both arranged inside the housing (6), the heating assembly (100) being as claimed in any of the claims 1 to 9, the electronic control assembly (200) and the heating assembly (100) being electrically connected.

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