Patent Application
20240381938
Priority is claimed to Chinese Patent Application No. 202321199072.4, filed on May 17, 2023, the entire disclosure of which is hereby incorporated by reference herein.
The present disclosure relates to the technical field of atomization, and specifically relates to an atomization core, an atomizer and an aerosol generation apparatus.
E-cigarettes are aerosol generation apparatuses that can be used as an alternative to traditional combustible cigarettes.
An aerosol generation apparatus is provided with an atomizer, the atomizer can atomize an aerosol generation substrate stored in the aerosol generation apparatus into aerosols that can be inhaled by a user.
In related technologies, the atomizer may achieve the purpose of atomizing the aerosol generation substrate to form aerosols by heating an atomization core to heat the aerosol generation substrate. The atomization core is provided with a heating element, and the heating part of the heating element is heated to heat the aerosol generation substrate.
The heating element generally adopts a resistor heating method to convert the electrical energy flowing through the heating element into internal energy, so as to achieve the effect of controlling the aerosol generation substrate to be atomized through temperature change to form the aerosols. Therefore, the temperature control of the heating part of the heating element is directly related to the aerosol generation effect.
In an embodiment, the present invention provides an atomization core, comprising: a substrate; and a heating element in contact with the substrate, the heating element comprising SS316L heating wires and two electrode connecting portions, wherein the SS316L heating wires are configured to heat an aerosol generation substrate, wherein the two electrode connecting portions are configured to be electrically connected to a power supply, wherein the two electrode connecting portions are arranged at an interval, and wherein the SS316L heating wires are bent and extend to be connected to the two electrode connecting portions.
Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and/or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:
In an embodiment, the present invention provides
In view of this, an embodiment of the present disclosure provides an atomization core, an atomizer and an aerosol generation apparatus which are convenient for temperature control.
In order to achieve the above purpose, the technical solution of the embodiment of the present disclosure is realized as follows:
a substrate; and
In some embodiments, the contact area between the SS316L heating wires and the substrate is 4 mm2 to 6 mm2.
In some embodiments, the resistance value range of the SS316L heating wires is 0.206Ω to 0.825 Ω.
In some embodiments, the thickness size of the SS316L heating wires is 0.08 mm to 0.1 mm; and/or, the width size of the SS316L heating wires is 0.08 mm to 0.1 mm.
In some embodiments, the distance between the concave side end portions of two adjacent corners on the SS316L heating wires is 0.3 mm to 0.5 mm; and/or, the length of a single SS316L heating wire is 7 mm to 12 mm.
In some embodiments, the atomization core includes two SS316L heating wires; and the two SS316L heating wires are arranged side by side, and the convex side end portions of the corners of the sides, close to each other, of the two SS316L heating wires are connected to each other.
In some embodiments, the heating element includes a plurality of reinforcing portions; the reinforcing portions extend in the side-by-side direction of the SS316L heating wires; one end of each reinforcing portion is connected to the convex side end portion of the corner, far away from each other, of the two SS316L heating wires; and the plurality of reinforcing portions are symmetrically arranged relative to the connecting line of the connecting positions of the two SS316L heating wires.
An embodiment of the present disclosure further provides an atomizer; the atomizer includes a housing and the atomization core of any one of the above embodiment; the housing is provided with an air outlet channel, and a liquid storage cavity for storing the aerosol generation substrate; and the heating element is arranged on one side, facing the air outlet channel, of the substrate to heat the aerosol generation substrate in the substrate.
An embodiment of the present disclosure further provides an aerosol generation apparatus, including a power supply assembly and the atomizer of the above embodiment; and an electrode of the power supply assembly is electrically connected to the heating element.
In some embodiments, the output voltage of the power supply assembly is 1.6 V to 3.2 V, and the output power is 9 W to 11 W; and/or, the power ratio of unit area of the SS316L heating wires ranges from 1.4 W/mm2 to 2.2 W/mm2.
According to the atomization core in the embodiment of the present disclosure, the material of the SS316L heating wires is SS316L stainless steel, compared with iron chromium aluminum and nickel chromium, the TCR value of the SS316L stainless steel is higher, the change range of the resistance value of the SS316L stainless steel is larger in the same temperature interval range, and therefore temperature control is facilitated, the heating efficiency is higher, the heating atomization effect on the aerosol generation substrate is improved, the atomization amount is increased, and the user experience is improved; and the SS316L material is easy to manufacture, high in structural strength, not prone to deformation and low in cost. The SS316L heating wires are bent and extend in a reciprocating manner, the length of the SS316L heating wires are increased as much as possible in the limited region on the substrate, thus the resistance value of the SS316L heating wires meets the heat requirement of the atomized aerosol generation substrate under the rated power, and meanwhile the structure of the atomization core is more compact.
It is to be noted that, without conflict, the embodiments in the present disclosure and the technical features in the embodiments may be combined with each other, and the detailed description in the specific embodiments shall be understood as an explanation of the purpose of the present disclosure, and shall not be regarded as an inappropriate restriction on the present disclosure.
In the description of the present disclosure, the “top” and “bottom” orientations or positional relationships are based on the orientations or positional relationships shown in
In related technologies, current is conducted to a heating part of a heating element, electrical energy is converted into heat energy through the resistance of the heating element, and therefore the purpose of heating an aerosol generation substrate is achieved. In the working process of an aerosol generation apparatus, the temperature of the heating part of the heating element fluctuates between the room temperature and the preset working temperature, and the resistance of the heating part of the heating element will change along with the change of the temperature of the heating element. The resistance value change of materials at different temperatures has a fixed corresponding relation, and the corresponding relation is a TCR (Temperature Coefficient of Resistance) value.
A working chip in the aerosol generation apparatus calculates the resistance value of the heating part of the heating element by detecting the relation between the voltage outputted to the heating part of the heating element and the detected current, and then the present temperature of the heating part of the heating element is indirectly calculated through the TCR value and the geometric dimension of the materials.
The heating part of the heating element in an atomization core is generally made of iron chromium aluminum or nickel chromium materials, and the temperature change of iron chromium aluminum and nickel chromium in the heating process is small, so the temperature control is not facilitated.
An embodiment of the present disclosure provides an atomization core 10 for being arranged in the aerosol generation apparatus to generate aerosols, referring to
The aerosol generation substrate includes but is not limited to medicine, nicotine- containing materials or nicotine-free materials and the like.
The heating element 12 is in contact with the substrate 11, so the aerosol generation substrate on the substrate 11 is atomized to form the aerosols, and the purpose that a user can inhale the aerosols is achieved.
The heating element 12 includes SS316L heating wires 121 and two electrode connecting portions 122.
The SS316L heating wires 121 are configured to heat the aerosol generation substrate, that is, the SS316L heating wires 121 are a heating part of the heating element 12, and the material is SS316L stainless steel.
The Chinese brand of the SS316L stainless steel is 022Cr17Ni12Mo2, and the SS316L stainless steel includes the following components: not greater than 0.08% of carbon, not greater than 2.0% of manganese, not greater than 0.045% of phosphorus, not greater than 0.03% of sulfur, not greater than 1.0% of silicon, 16.0% to 18.0% of chromium, 10.0% to 14.0% of nickel, 2.0% to 3.0% of molybdenum, not greater than 0.1% of nitrogen, and the balance iron.
The two electrode connecting portions 122 are configured to be electrically connected to a power supply; a power supply electrode conducts current to the SS316L heating wires 121 through the electrode connecting portions 122; and under the resistance of the SS316L heating wires 121, the electrical energy of the current flowing through the SS316L heating wires 121 is converted into heat energy, and thus the purpose of heating is achieved.
It can be understood that one of the two electrode connecting portions 122 is configured to be electrically connected to the positive electrode of the power supply, and the other electrode connecting portion is configured to be electrically connected to the negative electrode of the power supply.
The two electrode connecting portions 122 are arranged at an interval, so the probability of short circuit caused by direct electrical conduction between the two electrode connecting portions 122 is reduced.
The SS316L heating wires 121 are bent and extend to be connected to the two electrode connecting portions 122, so that the current can flow through the SS316L heating wires 121.
According to the atomization core 10 in the embodiment of the present disclosure, the material of the SS316L heating wires 121 is SS316L stainless steel, compared with iron chromium aluminum and nickel chromium, the TCR value of the SS316L stainless steel is higher, the change range of the resistance value of the SS316L stainless steel is larger in the same temperature interval range, and therefore temperature control is facilitated, the heating efficiency is higher, the heating atomization effect on the aerosol generation substrate is improved, the atomization amount is increased, and the user experience is improved; and the SS316L material is easy to manufacture, high in structural strength, not prone to deformation and low in cost. The SS316L heating wires 121 are bent and extend in a reciprocating manner, the length of the SS316L heating wires 121 are increased as much as possible in the limited region on the substrate 11, thus the resistance value of the SS316L heating wires 121 meets the heat requirement of the atomized aerosol generation substrate under the rated power, and meanwhile the structure of the atomization core 10 is more compact.
It can be understood that SS316L is in a medical grade or food grade.
It can be understood that under a condition that the temperature of the SS316L heating wires 121 meets the requirement for atomizing aerosols, the generating amount of the aerosols is in positive correlation with the contact area between the SS316L heating wires 121 and the substrate 11. In some embodiments, the contact area between the SS316L heating wires 121 and the substrate 11 is 4 mm2 (square millimeter) to 6 mm2, so that the amount of the aerosols obtained after atomization of the contact part of the substrate 11 and the SS316L heating wires 121 meets the requirement for the generating amount of the aerosols in unit time, and the user experience is improved.
In some embodiments, the difference value between the thickness size of the SS316L heating wires 121 and the width size of the SS316L heating wires 121 does not exceed 0.005 mm (millimeter), that is, the thickness size and the width size of the SS316L heating wires 121 are roughly the same.
It can be understood that in order to facilitate carrying of the user, the aerosol generation apparatus is generally powered by a battery.
Because the voltage drop caused by the resistance of an internal circuit of the aerosol generation apparatus and the battery level decrease with the use of the aerosol generation apparatus, the voltage applied to the two electrodes of the SS316L heating wires 121 is low.
In some embodiments, the resistance value range of the SS316L heating wires 121 is 0.206Ω (Ohm) to 0.825Ω.
Referring to the Ohm law formula:
in the Formula (1), P represents power, U represents voltage, and R represents resistance. Referring to the resistivity formula:
in the Formula (2), R represents resistance, ρ represents resistivity, L represents length, and S represents cross section area.
On the one hand, the resistance value of the SS316L heating wires 121 is low, so under a condition that the voltage is low, the heating power of the SS316L heating wires 121 can still meet the requirement for the generation amount of aerosols in unit time, and the user experience is improved; on the other hand, the resistivity of the SS316L is small, so under a condition that the total length of the SS316L heating wires 121 is fixed; and even if the resistance of the SS316L heating wires 121 is small, the cross section area of the SS316L heating wires 121 is still small, the heating points of the SS316L heating wires 121 are concentrated, the heating efficiency is improved, and the generation efficiency of the aerosols is improved.
In some embodiments, referring to
The specific thickness size of the SS316L heating wires 121 is not limited, for example, 0.08 mm, 0.085 mm, 0.09 mm, 0.095 mm, and 0.1 mm.
In some embodiments, referring to
The specific width size of the SS316L heating wires 121 is not limited, for example, 0.08 mm, 0.085 mm, 0.09 mm, 0.095 mm, and 0.1 mm.
The bending frequency of the SS316L heating wires 121 is not limited, for example, two times, three times, four times, and five times. The specific bending frequency is selected according to the size of the substrate 11, the length of the SS316L heating wires 121 and the resistance value of the SS316L heating wires 121.
A corner 1211 is formed at the bending position of each SS316L heating wire.
The bending angle of the corners 1211 of the SS316L heating wires 121 is not limited, for example, 30°, 35°, and 40°.
In some embodiments, referring to
The specific value of L3 is not limited, for example, 0.3 mm, 0.4 mm, and 0.5 mm.
In some embodiments, referring to
The specific value of L4 is not limited, for example, 7 mm, 8.767 mm, 9 mm, 10 mm, 11 mm, and 12 mm.
The specific number of the SS316L heating wires 121 is not limited, for example, one or more.
It can be understood that the SS316L heating wires 121 are bent and extends and is small in cross section area, the SS316L heating wires 121 are of a structure with certain flexibility, and the risks of deformation, bending and breaking of the SS316L heating wires 121 caused by vibration and other factors need to be reduced in the working process of the atomization core 10.
It can be understood that the SS316L heating wires 121 can be bent once to form one corner 1211 and can also be bent multiple times to form multiple corners 1211.
In some embodiments, referring to
In other embodiments, the number of the SS316L heating wires 121 is more than two, for example, three, four, and six; all the SS316L heating wires 121 are arranged side by side, and the convex side ends of the corners 1211 of the sides, close to each other, of the two adjacent SS316L heating wires 121 are connected together.
In some embodiments, referring to
It can be understood that the number of the reinforcing portions 123 is not limited, and can be one or more.
In some embodiments, referring to
The material of the reinforcing portions 123 can be the same as or different from the material of the SS316L heating wires 121. The specific mode of absorbing the aerosol generation substrate by the substrate 11 is not limited.
In some embodiments, the substrate 11 is provided with holes for permeating the aerosol generation substrate, and the aerosol generation substrate flows into the holes to achieve the purpose of absorbing the aerosol generation substrate by the substrate 11.
The specific material of the substrate 11 is not limited, such as porous ceramic, so that the corrosion resistance of the substrate 11 is improved, and the service life is prolonged.
The specific shape of the substrate 11 is not limited.
Exemplarily, referring to
An embodiment of the present disclosure further provides an atomizer; referring to
In some embodiments, referring to
An embodiment of the present disclosure further provides an aerosol generation apparatus; the aerosol generation apparatus includes a power supply assembly and the atomizer of the above embodiment; a power supply of the power supply assembly is electrically connected to the heating element 12 to provide electrical energy for the heating element 12.
The specific materials of the electrode of the power supply are not limited, such as copper or silver, so that the electrical energy loss is reduced while the electrical conduction function is realized.
The specific types of the power supply assembly are not limited, for example a lithium battery.
It can be understood that the output voltage of the power supply assembly is related to the service time of the aerosol generation apparatus.
In some embodiments, the output voltage of the power supply assembly is 1.6 V (Volt) to 3.2 V, and the output power is 9 W (Watt) to 11 W. Compared with the related technologies, the voltage range of a traditional ternary lithium battery core is 3.0 V to 4.2 V, the power supply assembly with lower voltage is selected, so the service life is prolonged, and meanwhile, the heating loss in the charging process is reduced. Meanwhile, referring to the Formula (1), the resistance value of the SS316L heating wires 121 is small, and the requirement of the output power can be met under the condition of the output voltage of the power supply assembly, so that the requirement of the generation amount of aerosols in unit time is met, and the user experience is improved.
The specific values of the output voltage of the power supply assembly are not limited, for example 1.6 V, 2.4 V and 3.2 V. The specific values of the output power of the power supply assembly are not limited, for example 9 W, 10 W and 11 W.
In the embodiment that the output voltage of the power supply assembly is 1.6 V to 3.2 V and the output power is 10 W, the Rmax range can be obtained to be 0.256 Ω to 1.024 Ω, referring to the Formula (1).
Referring to the resistance change formula:
in the Formula (3), R represents the resistance value of a resistance wire, TCR represents the TCR value of a material corresponding to the resistance wire, and T represents the difference value of the work temperature and the room temperature of the aerosol generation apparatus.
On the basis of the Rmax range, under the conditions that the room temperature is 25° C. (degree Celsius) and the work temperature is 250° C., the resistance change amplitude between the SS316L heating wires 121 and the heating wires made of iron chromium aluminum and nickel chromium is compared.
The TCR value of the SS316L is 1100×10−6 ppm/° C.; according to the Formula (3), the resistance value range of the SS316L heating wires 121 is0.206Ω to 0.825Ω; under a condition of 1.6 V, the difference value is 0.256Ω−0.206Ω=0.005Ω; and under a condition of 3.2 V, the difference value is 1.024Ω−0.825Ω=0.199Ω.
If the material of the heating wires is nickel chromium, the TCR value of the nickel chromium is 525×10−6 ppm/° C.; according to the Formula (3), the resistance value range of the heating wires made of the nickel chromium is 0.228Ω to 0.916Ω; under the condition of 1.6 V, the difference value is 0.256Ω−0.228Ω=0.028Ω; and under the condition of 3.2 V, the difference value is 1.024Ω−0.916Ω=0.108Ω.
If the material of the heating wires is iron chromium aluminum, the TCR value of the iron chromium aluminum is 350×10−6 ppm/° C.; according to the Formula (3), the resistance value range of the heating wires made of the iron chromium aluminum is 0.237Ω to 0.949Ω; under a condition of 1.6 V, the difference value is 0.256Ω−0.237Ω=0.019Ω; and under a condition of 3.2 V, the difference value is 1.024Ω−0.949Ω=0.075Ω.
Thus, the resistance value change difference value of the SS316L heating wires 121 is maximum, temperature control is facilitated, the heating element 12 can rapidly heat and atomize the aerosol generation substrate, and the heating element has high explosiveness.
In some embodiments, the power ratio of the unit area of the SS316L heating wires 121 ranges from 1.4 W/mm2 to 2.2 W/mm2, and therefore the heating amount of the unit area of the SS316L heating wires 121 meets the requirement of atomizing the aerosol generation substrate.
While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications may be made by those of ordinary skill within the scope of the following claims. In particular, the present invention covers further embodiments with any combination of features from different embodiments described above and below. Additionally, statements made herein characterizing the invention refer to an embodiment of the invention and not necessarily all embodiments.
The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and/or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202321199072.4 | May 2023 | CN | national |
