CN216701691U - Heating device and electronic atomization device - Google Patents
Heating device and electronic atomization device Download PDFInfo
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- CN216701691U CN216701691U CN202122735605.3U CN202122735605U CN216701691U CN 216701691 U CN216701691 U CN 216701691U CN 202122735605 U CN202122735605 U CN 202122735605U CN 216701691 U CN216701691 U CN 216701691U
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Abstract
The utility model relates to a heating device and an electronic atomization device, wherein the heating device comprises: the base is provided with an accommodating cavity; the electrode assembly is arranged on the base and surrounds the periphery of the accommodating cavity; wherein the electrode assembly comprises a first electrode and a second electrode, the first electrode and the second electrode forming a high frequency electric field within the receiving cavity by means of a high frequency voltage, the high frequency electric field being for heating the aerosol-generating substrate within the receiving cavity. The heating device can be applied to an electronic atomization device, specifically, an electrode assembly is arranged on the outer peripheral side of the accommodating cavity, a high-frequency electric field is formed in the accommodating cavity after high-frequency voltage is introduced to a first electrode and a second electrode in the electrode assembly, and the aerosol generating substrate placed in the accommodating cavity is heated under the action of the high-frequency electric field. In this way, heating of the aerosol-generating substrate by the high frequency electric field can be achieved as heat is generated by high frequency alternating displacement of internal positive and negative charges.
Description
Technical Field
The utility model relates to the technical field of atomization, in particular to a heating device and an electronic atomization device.
Background
The aerosol is a colloidal dispersion system formed by dispersing small solid or liquid particles in a gas medium, and the aerosol can be absorbed by a human body through a respiratory system, so that a novel alternative absorption mode is provided for a user, for example, an atomization device which can bake and heat an aerosol generating substrate of herbs or pastes to generate the aerosol is applied to different fields, and the aerosol which can be inhaled is delivered to the user to replace the conventional product form and absorption mode.
Generally, electronic atomisation devices typically employ resistive heating to heat the aerosol-generating substrate. In particular, resistive heating is achieved by energizing a resistive element to generate heat from an external power source, the resistive element generating heat in turn transferring heat to the aerosol-generating substrate by heat conduction. The heat conduction takes time and there is hysteresis, so that the aerosol-generating substrate adjacent the resistive element tends to be over-burnt or even charred. High-temperature overburning or scorching not only affects the taste and deteriorates the experience of consumers, but also more importantly, can cause the release of harmful substances in the aerosol generating substrate and endanger the health of the consumers.
In addition, to address the problem of uneven heating of the aerosol-generating substrate, microwave heating may be employed to heat the aerosol-generating substrate. However, the use of microwave heating has the following disadvantages: first, microwaves are high frequency electromagnetic waves, which can be harmful to human health if leaked during use. In addition, the leaked microwaves can interfere with electronic equipment around the body, such as mobile phone signals, and the life of people around the body is influenced. Second, the microwave wavelength is short and the penetration depth is shallow, making it difficult to achieve uniform heating in practice. Thirdly, the transmission of the microwave requires a waveguide tube and a resonant cavity, and the structure is complex and the miniaturization difficulty is high.
Therefore, conventional ways of heating aerosol-generating substrates do not allow uniform heating to be achieved with a simple and compact structure, and do not allow for effective improvement of the aerosol taste.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide a heating device and an electronic atomizing apparatus, which are directed to the problem that uniform heating cannot be achieved with a simple and compact structure.
A heating device, comprising:
the base is provided with an accommodating cavity; and
the electrode assembly is arranged on the base and surrounds the periphery of the accommodating cavity;
wherein the electrode assembly comprises a first electrode and a second electrode which form a high frequency electric field within the receiving chamber by a high frequency voltage, the high frequency electric field being for heating aerosol-generating substrate within the receiving chamber.
The heating device can be applied to an electronic atomization device, specifically, an electrode assembly is arranged on the outer peripheral side of the accommodating cavity, after high-frequency voltage is introduced into a first electrode and a second electrode in the electrode assembly, a high-frequency electric field is formed in the accommodating cavity, positive and negative charges in molecules and atoms inside the accommodating cavity generate high-frequency alternating displacement under the action of the high-frequency electric field, and the thermal motion of the molecules and the atoms is intensified, so that the aerosol generating substrate is heated. In this way, heating of the aerosol-generating substrate by the high frequency electric field can be achieved as heat is generated by high frequency alternating displacement of internal positive and negative charges. And the whole structure is simple and miniaturized, and the heating device is convenient to be applied to the electronic atomization device.
In one embodiment, the electrode assemblies are provided with at least two groups, the electrode assemblies are arranged at intervals along the axial direction of the accommodating cavity, and the first electrode and the second electrode in each group of the electrode assemblies are opposite and arranged at intervals in the circumferential direction of the accommodating cavity;
the at least two sets of electrode assemblies are connected in parallel with each other.
In one embodiment, the heating device further comprises an insulating member comprising an insulating outer layer and an insulating inner layer;
the insulating inner layer is arranged between the base and the insulating outer layer in an insulating mode, the insulating inner layer and the insulating outer layer jointly enclose to form an installation space, and the first electrode and the second electrode are arranged in the installation space.
In one embodiment, the heating device further includes an inductor, and the inductor is disposed in the accommodating cavity and generates heat under the action of the high-frequency electric field.
In one embodiment, the induction body is arranged as a circumferential heating structure and comprises an induction layer arranged on the inner wall of the accommodating cavity, and the induction layer generates heat under the action of the high-frequency electric field; and/or the like, and/or,
the inductor is arranged as a central heating structure and is axially arranged in the middle of the accommodating cavity.
In one embodiment, the inductor or the induction layer comprises a high dielectric dissipation factor material.
In one embodiment, the heating device further includes a resistance heating element, and the resistance heating element is disposed in the accommodating cavity and is controlled to generate heat after being electrified.
In one embodiment, the resistance heating body is arranged in a circumferential heating structure and comprises a resistance heating layer arranged on the inner wall of the accommodating cavity, and the resistance heating layer is controlled to be electrified and then heats; and/or the presence of a catalyst in the reaction mixture,
the resistance heating body is arranged as a central heating structure and is axially arranged in the middle of the accommodating cavity.
In one embodiment, the frequency of the high-frequency voltage is 10KHz-200 MHz.
In one embodiment, the heating device further comprises a high-frequency generator, and the first electrode and the second electrode are electrically connected with the high-frequency generator and receive a high-frequency voltage output by the high-frequency generator.
An electronic atomization device comprises the heating device.
Drawings
FIG. 1 is a schematic structural diagram of a heat generating device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a heat generating device according to another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a heat generating device according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a heat generating device according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a heat generating device according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a heat generating device according to another embodiment of the present invention.
100. A heating device; 10. a base; 11. an accommodating cavity; 30. an electrode assembly; 32. a first electrode; 34. a second electrode; 40. a high frequency generator; 50. an insulating member; 51. an installation space; 71. an inductor; 73. a sensing layer; 82. a resistance heating element; 84. a resistance heating layer; 90. a power source.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to figure 1, in one embodiment of the utility model, there is provided a heating device 100 for heating an aerosol-generating substrate of the floral, herbal or paste type.
The heating device 100 comprises a base 10 and an electrode assembly 30, the base 10 having a receiving cavity 11 formed therein, the receiving cavity 11 being for receiving an aerosol-generating substrate therein. An electrode assembly 30 is disposed on the base 10 and surrounds the receiving cavity 11, the electrode assembly 30 including a first electrode 32 and a second electrode 34, the first electrode 32 and the second electrode 34 forming a high frequency electric field within the receiving cavity 11 by a high frequency voltage, the high frequency electric field being for heating the aerosol-generating substrate within the receiving cavity 11. The electrode assembly 30 is arranged on the outer periphery of the accommodating cavity 11, and after high-frequency voltage is introduced to the first electrode 32 and the second electrode 34 in the electrode assembly 30, a high-frequency electric field is formed in the accommodating cavity 11, and under the action of the high-frequency electric field, positive and negative charges in molecules and atoms inside the aerosol generating substrate placed in the accommodating cavity 11 generate high-frequency alternating displacement, so that the thermal motion of the molecules and the atoms is intensified, and the aerosol generating substrate is heated.
In this way, heating of the aerosol-generating substrate by the high frequency electric field can be achieved as heat is generated by high frequency alternating displacement of internal positive and negative charges. And, the overall structure is simple and miniaturized, facilitating application of the heating device 100 to an electron atomizer.
Further, the high-frequency electric field heating is different from the microwave heating in the following points: first, high-frequency dielectric heating is performed in a parallel capacitor electric field, and microwaves are performed in a waveguide and a resonant cavity; second, the high-frequency electric field heating frequency is much lower than that of microwaves, so that the high-frequency electric field heating radiation is very low; third, since the wavelength of the high-frequency electric field heating is longer than that of the microwave, the penetration depth of the high-frequency electric field heating into the object to be heated is large, and the high-frequency electric field heating is far superior to the microwave heating in the heating uniformity.
In some embodiments, the heating device 100 further includes a high-frequency generator 40, and the first electrode 32 and the second electrode 34 are electrically connected to the high-frequency generator 40 and receive the high-frequency voltage output by the high-frequency generator 40. Thus, when the rf generator 40 is operated, an rf voltage is output to the first electrode 32 and the second electrode 34, and an rf electric field is formed between the first electrode 32 and the second electrode 34. The high-frequency generator 40 may be a tube high-frequency generator 40 or a solid-state high-frequency generator 40.
Further, the high frequency voltage has a frequency in the range of 10KHz to 200MHz, by which the aerosol-generating substrate can be heated efficiently. Alternatively, the high frequency voltage may have a voltage in the range of 5V to 2000V. The heating rate of the high-frequency electric field is related to the frequency and the voltage, and the higher the frequency is, the faster the heating rate is; the higher the voltage, the faster the rate of temperature rise. The temperature rise rate can be regulated and controlled by adjusting the frequency and the voltage of the high-frequency voltage. Furthermore, the rate of temperature rise of the aerosol-generating substrate is related to the dielectric dissipation factor of the aerosol-generating substrate, the greater the dielectric dissipation factor, the faster the rate of temperature rise. The heating rate of the aerosol-generating substrate (material) is calculated as follows:
wherein rho is the material density, kg/m 3;
cp is the specific heat of the material, J/(kg. DEG C);
delta T is the temperature rise of the material;
f is frequency, Hz;
e is the electric field intensity, E/m;
ε0vacuum dielectric constant, 8.85 x 10-12F/m;
ε' is the dielectric loss of the material, F/m.
Typically, when the voltage E is 100V, the thickness of the material to be heated is 3mm, the frequency is 200MHz, the dielectric loss factor of the material to be heated is 1, the specific heat capacity of the aerosol-generating substrate is 2000J/(kg. DEG C.), and the density of the aerosol-generating substrate is 250kg/m 3. Using the above parameters, the rate of temperature rise of the aerosol-generating substrate can be calculated as: 24 ℃/s.
In some embodiments, the electrode assemblies 30 are provided in at least two groups, the electrode assemblies 30 in at least two groups are arranged at intervals along the axial direction of the accommodating cavity 11, and the first electrode 32 and the second electrode 34 in each group of electrode assemblies 30 are arranged at intervals in the circumferential direction of the accommodating cavity 11; at least two sets of electrode assemblies 30 are connected in parallel with each other such that the at least two sets of electrode assemblies 30 are configured to be capable of controlled opening of a partial or all sets. That is, after at least two sets of electrode assemblies 30 are connected in parallel with each other, some or all of the at least two sets of electrode assemblies 30 may be selectively turned on, i.e., some of the sets of electrode assemblies 30 may be controlled to be turned on, or all of the sets of electrode assemblies 30 may be controlled to be turned on.
Thus, at least two sets of electrode assemblies 30 are arranged on the periphery of the accommodating cavity 11, the at least two sets of electrode assemblies 30 are arranged at intervals along the axial direction of the accommodating cavity 11, namely, the accommodating cavity 11 is axially divided into at least two sections, different sections correspond to the electrode assemblies 30 which are not used, the sectional heating of the accommodating cavity 11 can be realized by controlling the opening of part of the at least two sets of electrode assemblies 30, and similarly, the whole section heating of the accommodating cavity 11 can be realized by controlling the opening of all the sets of the multiple sets of single-machine assemblies. Therefore, the heating section can be selected according to the actual atomization requirement, so that the heating is more flexible.
In some embodiments, the heating device 100 further comprises an insulating member 50, the insulating member 50 comprising an insulating outer layer and an insulating inner layer; the insulating inner layer is arranged between the base and the insulating outer layer in an insulating manner, and encloses with the insulating outer layer to form an installation space 51, and the first electrode 32 and the second electrode 34 are arranged in the installation space 51. The insulating member 50 is sleeved outside the base 10, and the insulating member 50 accommodates the first electrode 32 and the second electrode 34, so that the first electrode 32 and the second electrode 34 are wrapped by the insulating member 50, and the insulating inner layer isolates the base 10 from the first electrode 32 and the second electrode 34, thereby preventing the first electrode 32 and the second electrode 34 from contacting the base 10 and making the base 10 conductive. In addition, after the heating device 100 is assembled in the electronic atomization device, the first electrode 32 and the second electrode 34 can be separated by the insulating outer layer, so that the shell in the electronic atomization device is prevented from being contacted with the first electrode 32 and the second electrode 34 to conduct electricity, a user is prevented from getting electric shock, and the user can be ensured to normally use the electronic atomization device.
Referring to fig. 1, in some embodiments, the heating device 100 includes an inductor 71, and the inductor 71 is disposed in the accommodating cavity 11 and generates heat under the action of the high-frequency electric field. So, put aerosol in holding chamber 11 and generate the gas matter, and set up inductor 71 in holding chamber 11 inside, inductor 71 generates heat the back under the high frequency electric field effect, can generate the inside transmission heat of matrix to aerosol, makes aerosol generate the matrix not only self because generate heat under the effect of high frequency electric field, still can receive the heat that inductor 71 conducts, can greatly improve aerosol and generate the rate of rise of temperature of matrix, realizes quick suction.
Referring to fig. 1, in some embodiments, the inductor 71 is a central heating structure and is axially disposed in the middle of the accommodating cavity 11, the aerosol generating substrate can be inserted into the inductor 71 in the process of being sleeved into the accommodating cavity 11, and finally the inductor 71 is inserted into the aerosol generating substrate and can transfer heat to the inside of the aerosol generating substrate after being heated under the action of the high-frequency electric field, so that the aerosol generating substrate is heated under the action of the high-frequency electric field and can receive heat conducted by the inductor 71, the heating rate of the aerosol generating substrate can be greatly increased, and rapid suction is realized.
Further, the inductor 71 is configured as a needle or a sheet, the free end of the inductor 71 extending into the accommodating cavity 11 is sharp, and the aerosol generating substrate can be conveniently inserted on the inductor 71.
Optionally, inductor 71 comprises a high dielectric dissipation factor material, enabling inductor 71 to have a large amount of heat generation under the influence of a high frequency electric field.
Referring to fig. 2, in other embodiments, the inductor is configured as a circumferential heating structure, and includes an induction layer 73 disposed on an inner wall of the accommodating cavity 11, and the induction layer 73 generates heat under the action of the high-frequency electric field. Set up inductive layer 73 on the inner wall of holding chamber 11, when being formed with high frequency electric field in holding chamber 11, high frequency electric field not only can make the aerosol in the holding chamber 11 generate substrate self and generate heat, can also make inductive layer 73 generate heat, and then makes the inner wall of holding chamber 11 generate heat, from the periphery conduction heat of aerosol generation substrate, but make full use of high frequency electric field, superpose simultaneously and generate heat multiply, can greatly improve the rate of rise of temperature of aerosol generation substrate, realize quick suction.
Further, the inner peripheral wall of the accommodating chamber 11 is disposed around the inner bottom wall, the sensing layer 73 may be disposed on the inner bottom wall and the inner peripheral wall of the accommodating chamber 11, or the sensing layer 73 may be disposed only on the inner peripheral wall or the inner bottom wall, and the range of the sensing layer 73 covering the inner wall of the accommodating chamber 11 may be designed according to actual requirements, which is not limited herein.
Optionally, the sensing layer 73 comprises a high dielectric dissipation factor material, so that the sensing layer 73 can have a larger heat generation amount under the action of a high-frequency electric field.
Referring to fig. 3, in still other embodiments, the heating device 100 includes an inductor 71, the inductor 71 includes a central heating structure and a peripheral heating structure, the central heating structure is axially disposed in the middle of the accommodating cavity 11, and the peripheral heating structure is disposed as an induction layer 73 on the inner wall of the accommodating cavity 11, and both the central heating structure and the peripheral heating structure generate heat under the action of the high-frequency electric field. Like this, set up inductor 71 in holding chamber 11 is inside, and inductor 71 includes central heating structure promptly and also includes the periphery heating structure, and aerosol generation matrix embolias the in-process in holding chamber 11 and inserts on central heating structure, and the central heating structure in final inductor 71 can insert and establish inside aerosol generation matrix, and sets up inductive layer 73 on the inner wall of holding chamber 11 and form the periphery heating structure. When a high-frequency electric field is formed in the accommodating cavity 11, the high-frequency electric field can not only enable the aerosol generating substrate in the accommodating cavity 11 to generate heat, but also enable the central heating structure in the inductor 71 and the induction layer 73 as the periphery heating structure to generate heat, the central heating structure and the periphery heating structure can be used for further heating from the inner side and the outer side of the aerosol generating substrate, so that the high-frequency electric field is fully utilized, multiple heating is superposed, the heating rate of the aerosol generating substrate is greatly improved, and rapid suction is realized.
Further, the central heating structure in the inductor 71 is configured as a needle or a sheet, the free end of the central heating structure extending into the receiving cavity 11 is sharp, and the aerosol generating substrate can be conveniently inserted on the central heating structure of the inductor 71. In addition, for the circumferential heating structure, the inner circumferential wall of the accommodating chamber 11 is disposed around the inner bottom wall, the sensing layer 73 may be disposed on the inner bottom wall and the inner circumferential wall of the accommodating chamber 11, or the sensing layer 73 may be disposed only on the inner circumferential wall or the inner bottom wall, and the range of the inner wall of the accommodating chamber 11 covered by the sensing layer 73 may be designed according to actual requirements, which is not limited herein.
Optionally, inductor 71 comprises a high dielectric dissipation factor material, enabling inductor 71 to have a large amount of heat generation under the influence of a high frequency electric field. Still alternatively, the inductive layer 73 includes a material having a high dielectric loss factor, so that the inductive layer 73 can have a large amount of heat generation under the action of a high-frequency electric field.
Referring to fig. 4, in still other embodiments, the heating device 100 includes a resistance heating element 82, and the resistance heating element 82 is disposed in the accommodating chamber 11 and is controlled to generate heat after being powered on. In this way, the aerosol generating material is contained in the containing chamber 11, and the resistance heating element 82 is arranged in the containing chamber 11, so that the resistance heating element 82 can generate heat after being electrified, and further can transfer heat to the aerosol generating substrate. Therefore, the resistance heating element 82 is electrified while a high-frequency electric field is formed by the first electrode 32 and the second electrode 34, so that the aerosol generating substrate can generate self-heating under the action of the high-frequency electric field, and simultaneously, the resistance heating element 82 can receive heat generated by electrifying, multiple heating can be superposed on the aerosol generating substrate, the heating rate of the aerosol generating substrate is greatly improved, and rapid suction is realized.
Alternatively, the resistance heat-generating body 82 is made of a material with a low dielectric dissipation factor, and the resistance heat-generating body 82 does not generate heat under the action of the high-frequency electric field, and generates heat only after controlled energization.
Further, the heating device 100 is provided with a circuit for controlling the energization of the resistance heating element 82, and by controlling the on/off of the circuit, it is possible to control whether or not the resistance heating element 82 operates. In this way, the user can selectively energize the resistive heating element 82 as desired, and if less heating is required, the circuit can be controlled to open to heat the aerosol-generating substrate using only the high frequency electric field; if more heat is required, the lid circuit can be turned on to heat by the high frequency electric field and the resistance heating element 82.
Referring to fig. 4, in some embodiments, the resistance heating element 82 is a central heating structure and is axially disposed in the middle of the accommodating cavity 11, so that the resistance heating element 82 is disposed in the accommodating cavity 11, the aerosol-generating substrate is inserted into the central heating structure in the process of being nested in the accommodating cavity 11, finally the central heating structure is inserted into the aerosol-generating substrate, and the resistance heating element 82 can generate heat after being powered on, so as to transfer heat from the inside of the aerosol-generating substrate to the outside. Therefore, the resistance heating element 82 is electrified while a high-frequency electric field is formed by the first electrode 32 and the second electrode 34, so that the aerosol generating substrate can generate self-heating under the action of the high-frequency electric field, and meanwhile, the heat generated by electrifying the resistance heating element 82 can be received from the inside of the aerosol generating substrate, multiple heating can be superposed on the aerosol generating substrate, the heating rate of the aerosol generating substrate is greatly improved, and quick suction is realized.
Optionally, the central heating structure is made of a material with a low dielectric dissipation factor, and does not generate heat under the action of a high-frequency electric field, and only generates heat after controlled energization.
Further, the heating device 100 is provided with a circuit for controlling the energization of the central heating structure, and by controlling the on/off of the circuit, it is possible to control whether the resistance heating element 82 operates. Thus, a user can selectively energize the central heating structure according to the self-demand, and if less heat is required, the circuit can be controlled to be switched off, and the aerosol generating substrate is heated only by the high-frequency electric field; if more heat is needed, the cover circuit can be switched on to heat by utilizing the high-frequency electric field and the central heating structure.
Referring to fig. 5, in still other embodiments, the resistance heating element is configured as a circumferential heating structure, and includes a resistance heating layer 84 disposed on the inner wall of the accommodating cavity 11, and the resistance heating layer 84 is controlled to be powered on to generate heat. The resistance heating layer 84 is disposed on the inner wall of the accommodating chamber 11, and the resistance heating layer 84 can heat the inner wall of the accommodating chamber 11 after being electrified so as to heat the aerosol-generating substrate from the outside. Therefore, the resistance heating layer 84 can be electrified while the high-frequency electric field is formed by the first electrode 32 and the second electrode 34, so that the aerosol generating substrate can generate self-heating under the action of the high-frequency electric field, and meanwhile, the heat generated by electrifying the resistance heating layer 84 can be received from the outer side of the aerosol generating substrate, multiple heating can be superposed on the aerosol generating substrate, the heating rate of the aerosol generating substrate is greatly improved, and quick suction is realized.
Alternatively, the resistive heating layer 84 is made of a material with a low dielectric loss factor, and the resistive heating layer 84 does not generate heat under the action of the high-frequency electric field, and only generates heat after controlled energization. Moreover, the inner peripheral wall of the accommodating chamber 11 is disposed around the inner bottom wall, the resistance heating layer 84 may be disposed on the inner bottom wall and the inner peripheral wall of the accommodating chamber 11, or the resistance heating layer 84 may be disposed only on the inner peripheral wall or the inner bottom wall, and the range of the resistance heating layer 84 covering the inner wall of the accommodating chamber 11 may be designed according to actual requirements, which is not limited herein. Still alternatively, the resistance heat generating layer 84 is configured as a layered structure, or the resistance heat generating layer 84 is configured as a resistance heat wire attached to the inner wall of the accommodating chamber 11.
Further, the heating device 100 is provided with a circuit for controlling the energization of the resistance heat generating layer 84, and whether the resistance heat generating layer 84 operates or not can be controlled by controlling the on/off of the circuit. Thus, the user can selectively energize the resistance heating element 82 according to his or her own needs, and if a small amount of heat generation is required, the circuit can be controlled to be turned off, and the aerosol-generating substrate can be heated only by the high-frequency electric field; if more heat is required, the circuit can be controlled to be connected to heat by the high frequency electric field and the resistive heating layer 84.
Referring to fig. 6, in still other embodiments, the heating device 100 includes a resistance heating element 82, the resistance heating element 82 is configured to include a central heating structure and a peripheral heating structure, the central heating structure is axially disposed in the middle of the accommodating cavity, the peripheral heating structure is configured as a resistance heating layer 84 on the inner wall of the accommodating cavity 11, and the central heating structure and the resistance heating layer 84 are controlled to be powered on to generate heat. That is, the central heating structure of the resistance heating element 82 is disposed in the accommodating chamber 11, the aerosol-generating substrate is inserted into the central heating structure of the resistance heating element 82 during the process of being inserted into the accommodating chamber 11, and finally the central heating structure of the resistance heating element 82 is inserted into the aerosol-generating substrate, and the resistance heating layer 84 is disposed on the inner wall of the accommodating chamber 11 to form the circumferential heating structure of the resistance heating element 82. When the center heating structure and the resistance heat generating layer 84 as the periphery heating structure in the resistance heat generating element 82 are energized, heating can be performed from both the inside and outside of the aerosol-generating substrate. Thus, the resistance heating layer 84 and the resistance heating element 82 can be electrified while the high-frequency electric field is formed by the first electrode 32 and the second electrode 34, so that the aerosol generating substrate can generate heat under the action of the high-frequency electric field, and meanwhile, the aerosol generating substrate can receive heat from the inner side and the outer side of the aerosol generating substrate, multiple heating can be superposed on the aerosol generating substrate, the heating rate of the aerosol generating substrate is greatly improved, and rapid suction is realized.
Alternatively, the central heating structure in the resistance heat-generating body 82 and the resistance heat-generating layer 84 as the circumferential heating structure are both made of a material having a low dielectric loss factor, and the central heating structure in the resistance heat-generating body 82 and the resistance heat-generating layer 84 as the circumferential heating structure do not generate heat under the action of the high-frequency electric field and generate heat only after controlled energization. Moreover, the inner peripheral wall of the accommodating chamber 11 is disposed around the inner bottom wall, the resistance heating layer 84 may be disposed on the inner bottom wall and the inner peripheral wall of the accommodating chamber 11, or the resistance heating layer 84 may be disposed only on the inner peripheral wall or the inner bottom wall, and the range of the resistance heating layer 84 covering the inner wall of the accommodating chamber 11 may be designed according to actual requirements, which is not limited herein. Still alternatively, the resistance heat generating layer 84 is configured as a layered structure, or the resistance heat generating layer 84 is configured as a resistance heat wire attached to the inner wall of the accommodating chamber 11.
Further, the heating device 100 is provided with a circuit for controlling the energization of the central heating structure in the resistance heating element 82 and the resistance heating layer 84 as the peripheral heating structure, and by controlling the on/off of the circuit, it is possible to control whether the central heating structure in the resistance heating element 82 and the resistance heating layer 84 as the peripheral heating structure operate or not. In this way, the user can selectively energize the central heating structure of the resistance heating element 82 and the resistance heating layer 84 as the peripheral heating structure according to his/her own needs, and if a small amount of heat is required, the circuit can be controlled to be turned off, and the aerosol-generating substrate can be heated only by the high-frequency electric field; if a large amount of heat is required, the circuit connection can be controlled so that heating is performed by the high-frequency electric field, the central heating structure in the resistance heating element 82, and the resistance heating layer 84 as the peripheral heating structure.
In some embodiments, the heating device 100 further includes a power supply 90, the power supply 90 being used to power the high-frequency generator 40, and the power supply 90 being further used to power the central heating structure in the resistance heat generating body 82 and the resistance heat generating layer 84 as the peripheral heating structure.
Based on the same concept, in an embodiment of the utility model, there is also provided an electronic atomising device comprising the heating device 100 as described above, the heating device 100 providing a high frequency electric field to achieve uniform heating of the aerosol-generating substrate.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A heating device, characterized in that the heating device comprises:
the base is provided with an accommodating cavity; and
the electrode assembly is arranged on the base and surrounds the periphery of the accommodating cavity;
wherein the electrode assembly comprises a first electrode and a second electrode which form a high frequency electric field within the receiving chamber by a high frequency voltage, the high frequency electric field being for heating aerosol-generating substrate within the receiving chamber.
2. The heating device according to claim 1, wherein the electrode assemblies are arranged in at least two groups, the at least two groups of electrode assemblies are arranged at intervals along the axial direction of the accommodating cavity, and the first electrode and the second electrode in each group of electrode assemblies are arranged opposite and at intervals in the circumferential direction of the accommodating cavity;
the at least two sets of electrode assemblies are connected in parallel with each other.
3. A heating device according to claim 1 or 2, further comprising an insulation, the insulation comprising an insulating outer layer and an insulating inner layer;
the insulating inner layer is arranged between the base and the insulating outer layer in an insulating mode, the insulating inner layer and the insulating outer layer jointly enclose to form an installation space, and the first electrode and the second electrode are arranged in the installation space.
4. A heating device according to claim 1, further comprising an inductor disposed in the accommodating chamber and generating heat under the high-frequency electric field.
5. The heating device according to claim 4, wherein the induction body is configured as a circumferential heating structure and comprises an induction layer arranged on the inner wall of the accommodating cavity, and the induction layer generates heat under the action of the high-frequency electric field; and/or the presence of a catalyst in the reaction mixture,
the inductor is arranged as a central heating structure and is axially arranged in the middle of the accommodating cavity.
6. A heating device as claimed in claim 5, wherein the inductor or the induction layer comprises a high dielectric dissipation factor material.
7. The heating device according to claim 1, further comprising a resistance heating element disposed in the accommodating chamber and controlled to generate heat after being energized.
8. The heating device according to claim 7, wherein the resistance heating body is arranged in a circumferential heating structure and comprises a resistance heating layer arranged on the inner wall of the accommodating cavity, and the resistance heating layer is controlled to generate heat after being electrified; and/or the presence of a catalyst in the reaction mixture,
the resistance heating body is of a central heating structure and is axially arranged in the middle of the accommodating cavity.
9. A heating device according to claim 1, characterized in that the frequency of the high-frequency voltage is 10KHz-200 MHz.
10. A heating device according to claim 1 or 9, further comprising a high-frequency generator, wherein the first electrode and the second electrode are each electrically connected to the high-frequency generator and receive a high-frequency voltage output from the high-frequency generator.
11. An electronic atomisation device comprising a heating means as claimed in any of the previous claims 1 to 10.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113892695A (en) * | 2021-11-09 | 2022-01-07 | 深圳麦克韦尔科技有限公司 | Heating device and electronic atomization device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113892695A (en) * | 2021-11-09 | 2022-01-07 | 深圳麦克韦尔科技有限公司 | Heating device and electronic atomization device |
| WO2023083046A1 (en) * | 2021-11-09 | 2023-05-19 | 深圳麦克韦尔科技有限公司 | Heating device and electronic atomization apparatus |
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