Patent Application
20230337744
This application relates to the field of vaporizer technologies, and in particular, to a heating body and a preparation method therefor, a vaporizer, and an electronic device.
An electronic vaporizer mainly includes a vaporizer and a battery. The vaporizer is an important component of the electronic vaporizer, which is configured to vaporize a vaporization medium for inhalation. In the vaporizer, a heating body is a core component of the vaporizer that performs a vaporization function, which is mainly formed by pre-embedding a heating wire or screen printing a heating film on a ceramic substrate. The heating body in which the heating wire is pre-embedded has advantages such as a simple structure, high vaporization efficiency, and a uniform temperature field. The heating body on which the heating film is screen printed has advantages such as a large heating area, being capable of implementing surface vaporization, and high thermal efficiency.
However, when vaporizing the vaporization medium, the two types of heating bodies are prone to problems such as slow formation of an aerosol, and generation of a burnt flavor, miscellaneous air, or the like due to dry heating of the heating body, affecting a user experience.
In an embodiment, the present invention provides a heating body, comprising: a porous ceramic body comprising a preheating member, the preheating member comprising a porous infrared ceramic structure; and a heating member located on the porous ceramic body, the heating member being configured to provide heat for the preheating member and to vaporize preheated liquid.
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 a heating body and a preparation method therefor, a vaporizer, and an electronic device.
In an embodiment, the present invention provides a heating body, including:
a porous ceramic body, including a preheating member configured to preheat liquid, where the preheating member is a porous infrared ceramic structure; and
a heating member, where the heating member is located on the porous ceramic body, and is configured to provide heat for the preheating member and vaporize preheated liquid.
In the heating body, a porous infrared ceramic structure is used as a preheating member. The preheating member preheats liquid by using heat provided by the heating member to radiate far infrared rays, thereby reducing viscosity of the liquid and improving fluidity of the liquid in the porous ceramic body. In this way, the to-be-vaporized liquid may reach the heating member more quickly and be vaporized, thereby improving a problem that when a vaporization medium is vaporized, an aerosol is prone to slow formation. In addition, because the fluidity of the to-be-vaporized liquid in the porous ceramic body is improved, the to-be-vaporized liquid may reach the heating member more quickly, and a problem that the heating body is prone to dry heating is also improved.
In an embodiment, the porous ceramic body further includes a substrate, the preheating member is located on the substrate, the substrate is a porous ceramic structure, and the heating member is completely located in the preheating member and is close to the substrate or is located at a junction of the substrate and the preheating member.
In an embodiment, the substrate is a hollow porous ceramic structure, the preheating member is a hollow porous infrared ceramic structure, and the substrate and the preheating member are nested with each other.
In an embodiment, the preheating member is sleeved on the substrate, and the heating member is spirally distributed on the substrate.
In an embodiment, the heating member includes a heating portion and an infrared heating layer located on the heating portion.
In an embodiment, a thickness of the infrared heating layer ranges from 20 μm to 500 μm.
In an embodiment, the substrate is in a shape of a hollow cylinder, the preheating member is in a shape of a hollow cylinder, the preheating member is sleeved on the substrate, an inner diameter of the substrate ranges from 5 mm to 3 mm, and an outer diameter of the preheating member ranges from 2.5 mm to 9 mm.
In an embodiment, a surface of the substrate close to the preheating member recesses to form a first groove, a surface of the preheating member close to the substrate recesses to form a second groove corresponding to the first groove, the first groove and the second groove form a heating cavity, and the heating member is accommodated in the heating cavity.
In an embodiment, a porosity of the preheating member ranges from 30% to 80%.
In an embodiment, a median pore size of the preheating member ranges from 10 μm to 100 μm. In an embodiment, a radiation wavelength of the preheating member ranges from 5 m to 20 μm.
In an embodiment, a preheating temperature of the preheating member ranges from 40° C. to 90° C. In an embodiment, a resistance value of the heating member ranges from 0.5Ω to 5Ω.
In an embodiment, a porosity of the substrate ranges from 30% to 80%.
In an embodiment, a median pore size of the substrate ranges from 10 μm to 100 μm.
A method for preparing the heating body is provided, including:
integrally forming, according to a preset shape, the heating member and a raw material configured to prepare the porous ceramic body to prepare a green body; and
sintering the green body after degumming to prepare the heating body. A vaporizer is provided, including:
a liquid storage cavity, configured to store liquid; and
a heating body, configured to absorb liquid in the liquid storage cavity and vaporize the liquid, where the heating body is the foregoing heating body.
An electronic device is provided, including a power supply and the vaporizer, where the power supply is electrically connected to the vaporizer to supply power to the vaporizer.
For ease of understanding this application, this application is described more comprehensively below. This application may be implemented in many different forms, and is not limited to embodiments described in this specification. On the contrary, the embodiments are provided to make the disclosed content of this application clearer and more comprehensive.
It should be noted that, when a component is expressed as “being fixed to” another component, the component may be directly on the another component, or one or more intermediate components may exist between the component and the another component. When one component is expressed as “being connected to” another component, the component may be directly connected to the another component, or one or more intermediate components may exist between the component and the another component. Orientation or position relationships indicated by terms such as “vertical”, “horizontal”, “left”, “right”, “upper”, “lower”, “inner”, “outer”, and “bottom” are based on orientation or position relationships shown in the accompanying drawings, and are used only for ease of description, rather than indicating or implying that the mentioned apparatus or component needs to have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as a limitation to this application. In addition, terms “first” and “second” are only used to describe the objective and cannot be understood as indicating or implying relative importance.
Unless otherwise defined, meanings of all technical and scientific terms used in this specification are the same as those usually understood by a person skilled in the art to which this application belongs. In this application, terms used in the specification of this application are merely intended to describe objectives of specific embodiments, but are not intended to limit this application.
An implementation of this application provides a vaporizer. The vaporizer includes a liquid storage cavity and a heating body 10. The liquid storage cavity is configured to store liquid, such as a vaporization medium, and the heating body 10 is configured to absorb liquid in the liquid storage cavity and vaporize the liquid. In some embodiments, the liquid storage cavity has a liquid outlet, and the heating body 10 is close to the liquid outlet. The liquid in the liquid storage cavity flows out from the liquid outlet and enters the heating body 10, so as to be vaporized. In a specific example, the vaporizer is an electronic vaporizer.
Referring to
In some embodiments, the substrate 111 is a porous ceramic structure and has a liquid guiding function. In some other embodiments, the substrate 111 is a hollow porous ceramic structure. In the embodiment shown in the figure, the substrate 111 is in a shape of a hollow cylinder. Certainly, in another embodiment, a shape of the substrate 111 is not limited to the hollow cylinder, and may further be another hollow structure.
In this implementation, a porosity of the substrate 111 ranges from 30% to 80%, and a median pore size of a pore of the substrate 111 ranges from 10 μm to 100 μm. The porosity of the substrate 111 and a pore size of the pore are set as described above, which is convenient for the substrate 111 to absorb the liquid. In some embodiments, the porosity of the substrate 111 is 30%, 40%, 50%, 60%, 70%, or 80%. The median pore size of the pore of the substrate 111 is 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 am, 90 am, or 100 am. In some other embodiments, a porosity of the substrate 111 ranges from 40% to 70%, and a median pore size of a pore of the substrate 111 ranges from 10 μm to 80 am. It may be understood that, in other implementations, the porosity of the substrate 111 and the pore size of the pore are not limited to the above, and may be adjusted according to actual needs.
The preheating member 112 is close to the liquid outlet and is located on the substrate 111. The preheating member 112 is a porous infrared ceramic structure and has a function of guiding liquid and radiating infrared rays. The preheating member 112 has a liquid inlet surface 113, and the liquid enters the preheating member 112 through the liquid inlet surface 113 of the preheating member 112 after flowing out from the liquid storage cavity. When flowing through the preheating member 112, the liquid is preheated by the infrared rays radiated by the preheating member 112, so that viscosity is reduced and fluidity is improved. In this way, when the heating body 10 vaporizes the vaporization medium, a case of slow formation of an aerosol and dry heating due to the poor fluidity of the vaporization medium in the porous ceramic body 110 is not prone to occur.
In some embodiments, both the preheating member 112 and the substrate 111 are hollow structures, and the preheating member 112 is sleeved on the substrate 111. When the preheating member 112 is sleeved on the substrate 111, an outer circumferential surface of the preheating member 112 is the liquid inlet surface 113. The liquid flows out from the liquid storage cavity, enters the preheating member 112 through the outer circumferential surface of the preheating member 112, and is vaporized into an aerosol after being preheated by the preheating member 112 and is heated by the heating member 120, and is discharged from an inner circumferential surface of the substrate 111. It may be understood that, the preheating member 112 may also be nested in the substrate 111. That is, the substrate 111 is sleeved on the preheating member 112. In this case, the preheating member 112 is accommodated in a hollow portion of the substrate 111, an inner circumferential surface of the preheating member 112 is the liquid inlet surface 113. The liquid flows out from the liquid storage cavity, enters the preheating member 112 through the inner circumferential surface of the preheating member 112, and is vaporized into an aerosol after being preheated by the preheating member 112 and is heated by the heating member 120, and is discharged from the outer circumferential surface of the substrate 111.
In the embodiment shown in the figure, the preheating member 112 is in a shape of a hollow cylinder. In a specific example, the substrate 111 is in a shape of a hollow cylinder, the preheating member 112 is in a shape of a hollow cylinder, the preheating member 112 is sleeved on the substrate 111, an inner diameter of the substrate 111 ranges from 1.5 mm to 3 mm, and an outer diameter of the preheating member ranges from 2.5 mm to 9 mm. It may be understood that, a size of the substrate 111 is not limited to the above, and a size of the preheating member 112 is not limited to the above, and may further be adjusted according to an actual situation, provided that the shape and size of the preheating member 112 may match that of the substrate 111 and the liquid outlet.
In some embodiments, at least one of the substrate 111 or the preheating member 112 may be a non-hollow structure. When the substrate 111 is the non-hollow structure, the preheating member 112 is the hollow structure. In this case, the preheating member 112 is located on one side of a surface of the substrate 111, and the to-be-vaporized liquid is vaporized after being preheated by the preheating member 112, and is then discharged from the other side of the substrate 111. When the substrate 111 is a hollow structure, the preheating member 112 may be the non-hollow structure. In this case, the preheating member 112 may be located on the substrate 111 in a stacking manner.
In this implementation, a porosity of the preheating member 112 ranges from 30% to 80%, and a median pore size of a pore of the preheating member 112 ranges from 10 μm to 100 μm. The porosity of the preheating member 112 and a pore size of the pore are set as described above, which is convenient for the substrate 111 to absorb the liquid. In some embodiments, the porosity of the preheating member 112 is 30%, 40%, 50%, 60%, 70%, or 80%. The median pore size of the pore of the preheating member 112 is 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 am, 90 am, or 100 μm. In some other embodiments, a porosity of the preheating member 112 ranges from 40% to 70%, and a median pore size of a pore of the preheating member 112 ranges from 20 μm to 80 μm. It may be understood that, in other implementations, the porosity of the preheating member 112 and the pore size of the pore are not limited to the above, and may be adjusted according to actual needs.
When far infrared rays irradiate on a heated object, a part of the rays are reflected back, and a part of the rays are absorbed by the object. When an emitted far infrared wavelength is consistent with an absorption wavelength of the heated object, the heated object absorbs the far infrared rays. In this case, molecules and atoms in the object “resonate”-producing strong vibrations and rotations, and the vibrations and rotations increase a temperature of the object, achieving the objective of heating the object. Therefore, a wavelength radiated from the preheating member 112 may be selected according to a heated substance. In this embodiment, the heated substance is an oil vaporization medium, and a radiation wavelength of the preheating member 112 ranges from 5 μm to 20 μm. The radiation wavelength of the preheating member 112 is set to range from 5 μm to 20 μm, effective components (such as essence, glycerin, nicotine, or the like) in the oil vaporization medium may be heated precisely, thereby implementing precise vaporization, and increasing an effective vaporization concentration of the effective components. Certainly, the radiation wavelength of the preheating member 112 is not limited to the above, and may further be other radiation wavelengths, provided that the radiation wavelength of the preheating member 112 may match the absorption wavelength of the heated object.
In an embodiment, the preheating member 112 is a porous infrared ceramic structure at a room temperature. The room temperature ranges from 25° C. to 150° C. In this implementation, a preheating temperature of the preheating member 112 ranges from 40° C. to 90° C.
The preheating temperature refers to a temperature that the liquid preheated by the preheating member 112 may reach. The temperature is suitable for preheating an oil vaporization medium of an electronic vaporizer. Certainly, when the vaporized liquid is not the oil vaporization medium but other liquid, the preheating temperature of the preheating member 112 may be adjusted according to liquid that specifically needs to be vaporized.
The heating member 120 is configured to provide heat for the preheating member 112 and vaporize preheated liquid. A part of heat released by the heating member 120 directly heats the liquid to cause the liquid to be vaporized, and the other part is conducted to the preheating member 112 to cause the preheating member 112 to absorb the heat and radiate infrared rays.
In some embodiments, the heating member 120 is located in the porous ceramic body 110 and is configured to generate heat. In the embodiment shown in the figure, the heating member 120 is located at a junction between the substrate 111 and the preheating member 112. The heating member 120 is arranged at the junction between the substrate 111 and the preheating member 112, so that the heat generated by the heating member 120 is fully used, and preheating and vaporization are simultaneously satisfied. Specifically, a surface of the substrate 111 close to the preheating member 112 recesses to form a first groove 114, a surface of the preheating member 112 close to the substrate 111 recesses to form a second groove 115 corresponding to the first groove 114, the first groove 114 and the second groove 115 form a heating cavity, and the heating member 120 is accommodated in the heating cavity.
In other implementations, the heating member 120 may be completely embedded in the preheating member 112, and may also be completely embedded in the substrate 111. For example, the heating member 120 is completely located in the preheating member 112 and is away from the liquid outlet; or the heating member 120 is completely located in the substrate 111 and is close to the preheating member 112.
For example, in an implementation shown in the figure, the heating member 120 is spirally distributed on the substrate 111. Certainly, in some other embodiments, the shape of the heating member 120 is not limited to a shape of a spiral, and may further be another shape. For example, at least one of a shape of a sheet, a strip, an S, or a U.
In an embodiment, the heating member 120 includes a heating portion 121. Optionally, the heating portion 121 is the heating wire. Optionally, in a specific example, the heating portion 121 is a piece of heating wire (that is, monofilament). In this implementation, a resistance value of the heating portion 121 ranges from 0.5Ω to 1.5Ω. In another embodiment, a resistance value of the heating portion 121 ranges from 0.8Ω to 1.3Ω.
In some embodiments, the heating member 120 further includes an infrared heating layer on the heating portion 121. The infrared heating layer is arranged on the heating portion 121, to cause the heat utilization of the heating portion 121 to be higher. In this way, the preheating member 112 receives more heat that are more uniform, and preheating is faster. In this implementation, a thickness of the infrared heating layer ranges from 20 μm to 500 μm. In another embodiment, a thickness of the infrared heating layer ranges from 20 μm to 80 km.
In some embodiments, the substrate 111 may be omitted. When the substrate 111 is omitted, the heating member 120 may be located in the preheating member 112 and be away from the liquid outlet, so that the liquid is first preheated and then vaporized. In this case, the heating member 120 transfers heat energy to the preheating member 112 and causes the preheating member 112 to radiate heat energy to preheat the liquid. The preheated liquid flows through the heating member 120 and is vaporized, thereby releasing the aerosol. Certainly, when the substrate 111 is omitted, the heating member 120 may also be located on an outer surface of the preheating member 112, provided that the heating member 120 may provide heat for the preheating member 112 to preheat the vaporization medium and vaporize the vaporization medium. In an embodiment, the preheating member 112 is a non-hollow structure, a side of the preheating member 112 is close to the liquid outlet, and the heating member 120 is located on a surface of the preheating member 112 and is away from a side of the liquid outlet. In this case, the liquid flowing out from the liquid outlet enters the preheating member 112 at a position close to the liquid outlet, is first preheated by the preheating member 112, and is then vaporized by the heating member 120 on the surface of the preheating member 112, and is released. In another embodiment, the preheating member 112 is a hollow structure, and the heating member 120 is located on the outer circumferential surface of the preheating member 112. In this case, after flowing out from the liquid outlet, the liquid enters the preheating member 112 through the inner circumferential surface of the preheating member 112, and is first preheated by the preheating member 112 and is then heated by the heating member, thereby releasing the aerosol from the outer circumferential surface of the preheating member 112.
In some embodiments, the heating member 120 may further be located on the surface of the porous ceramic body 110. For example, when the substrate 111 is omitted, the heating member 120 is located on the outer surface of the preheating member 112.
Certainly, the heating body 10 further includes a connecting member 130. The connecting member 130 is configured to electrically connect the heating member 120 to a power supply. For example, in an implementation shown in the figure, the connecting member 130 passes through the outer circumferential surface of the preheating member 112.
The heating body 10 includes a porous ceramic body 110 and a heating member 120 located on the porous ceramic body 110, which at least has the following advantages:
Because the vaporizer includes the heating body 10, an aerosol is quickly formed, and is not prone to dry heating, and energy is saved. In addition, an implementation of this application further provides an electronic device. The electronic device includes a power supply and the vaporizer, and the power supply is electrically connected to the vaporizer to supply power to the vaporizer. More specifically, the electronic device is an electronic vaporizer.
In addition, referring to
Step S10: Integrally form, according to a preset shape, a raw material configured to prepare the porous ceramic body sand the heating member to prepare a green body.
Specifically, the raw material configured to prepare the porous ceramic body includes a raw material configured to prepare the substrate and a raw material configured to prepare the preheating member.
The raw material configured to prepare the substrate includes ceramic powder, sintering auxiliary agent, and pore-forming agent. Specifically, types of the ceramic powder, the pore-forming agent, and the sintering auxiliary agent are not particularly limited, and the ceramic powder, the pore-forming agent, and the sintering auxiliary agent commonly used in the art may be used. For example, the ceramic powder may use a diatomite system or a zeolite system. It should be noted that, “ceramic powder” refers to a powdered material obtained by fully and uniformly mixing and roasting the raw material (excluding the sintering auxiliary agent and the pore-forming agent) used in the preparation of a ceramic.
In an embodiment, in parts by mass, the raw material configured to prepare the substrate includes 40 to 70 parts of ceramic powder, 5 to 30 parts of sintering auxiliary agent, and 10 to 30 parts of pore-forming agent. In some other embodiments, in parts by mass, the raw material configured to prepare the substrate includes 45 to 70 parts of ceramic powder, 10 to 30 parts of sintering auxiliary agent, and 15 to 30 parts of pore-forming agent. Certainly, in another embodiment, types and contents of components of the raw material configured to prepare the substrate are not limited to the above, and may further be adjusted according to an actual situation.
The raw material configured to prepare the preheating member includes the ceramic powder, the sintering auxiliary agent, and the pore-forming agent, where the ceramic powder includes far infrared ceramic powder. The far infrared ceramic powder refers to ceramic powder with far infrared radiation performance. The far infrared ceramic powder includes at least one of far infrared ceramic powder with a spinel or inverse spinel ferrite structure, or high-performance infrared ceramic powder prepared by mixing and sintering a transition metal oxide and a cordierite system silicate material. In some embodiments, the far infrared ceramic powder with the spinel or inverse spinel ferrite structure is far infrared ceramic powder with a spinel or inverse spinel ferrite structure including a transition metal oxide (such as NiO, Cr2O3, TiO2, MnO2, CuO, CoO, Fe2O3, ZnO, or the like).
In an embodiment, in parts by mass, the raw material configured to prepare the preheating member includes 40 to 80 parts of ceramic powder, 5 to 30 parts of sintering auxiliary agent, and 10 to 30 parts of pore-forming agent, where the ceramic powder is the far infrared ceramic powder. In some other embodiments, in parts by mass, the raw material configured to prepare the preheating member includes 50 to 80 parts of far infrared ceramic powder, 10 to 30 parts of sintering auxiliary agent, and 15 to 30 parts of pore-forming agent, where the ceramic powder is the far infrared ceramic powder.
In some other embodiments, the raw material configured to prepare the preheating member includes the far infrared ceramic powder and the ordinary ceramic powder. That is, the ceramic powder in the raw material configured to prepare the preheating member includes the far infrared ceramic powder, the ordinary ceramic powder, the sintering auxiliary agent, and the pore-forming agent. In a specific example, in parts by mass, the raw material configured to prepare the preheating member includes 40 to 80 parts of ceramic powder, 5 to 30 parts of sintering auxiliary agent, and 10 to 30 parts of pore-forming agent, where the ceramic powder includes the far infrared ceramic powder and the ordinary ceramic powder. In some other embodiments, in parts by mass, the raw material configured to prepare the preheating member includes 45 to 70 parts of far infrared ceramic powder, 10 to 30 parts of sintering auxiliary agent, and 15 to 30 parts of pore-forming agent, where the ceramic powder includes the far infrared ceramic powder and the ordinary ceramic powder. Certainly, in another embodiment, types and contents of components of the raw material configured to prepare the preheating member are not limited to the above, and may further be adjusted according to an actual situation.
In an embodiment, the heating member includes a heating portion and an infrared heating layer located on the heating portion.
A material of the heating portion is not particularly limited, and may be selected according to a resistance value of a heating member that needs to be prepared.
A material configured to prepare an infrared heating layer includes the far infrared ceramic powder, a binder, and a solvent. The far infrared ceramic powder may be the same as the far infrared ceramic powder used in the preheating member, and may also be different from the far infrared powder used in the preheating member. The binder is selected from at least one of an inorganic binder or an organic binder. Specifically, the inorganic binder is selected from at least one of aluminum sol or sodium silicate. The organic binder is selected from at least one of Carboxymethyl Cellulose (CMC), acrylic polymer, polyvinyl alcohol (PVA), or dextrin. Certainly, the binder is not limited to the above, and may further be other substances that may be used as the binder.
In an embodiment, a step of preparing the heating member with the infrared heating layer includes: preparing a material configured to prepare the infrared heating layer into a slurry; and the slurry is sprayed on the heating wire by using a spraying process (for example, ion spraying, a spraying gun, or the like), and is then formed, degummed, and sintered, to prepare a heating body. It may be understood that, after being sintered first, the heating member may be formed together with the raw material configured to prepare the porous ceramic body, be degummed, and be sintered, to prepare the heating body. The formed heating member (a green body of the heating member) may also be formed again together with the raw material configured to prepare the porous ceramic body, and then be degummed and sintered, to prepare the heating body.
It should be noted that, a problem of shrinkage matching between the preheating member and the substrate after sintering may be resolved by adjusting a mass ratio of the sintering auxiliary agent, the pore-forming agent, and skeleton-forming agent.
In an embodiment, a molding manner in a process of preparing the green body is one of injection molding, gel injection molding, or dry pressing molding. Certainly, the molding manner in the process of preparing the green body is not limited to the above, and another manner may further be used.
Step S402: Sinter the green body after degumming to prepare a heating body.
Specifically, a temperature for degumming ranges from 350° C. to 700° C.; and a temperature for sintering ranges from 800° C. to 1200° C. In some other embodiments, a temperature for degumming ranges from 450° C. to 650° C.; and a temperature for sintering ranges from 750° C. to 1100° C. Certainly, in another embodiment, the temperature for degumming and the temperature for sintering are not limited to the above, and the temperature for degumming and the temperature for sintering may be adjusted according to the prepared porous ceramic body.
The preparation method for the heating body is simple and convenient, and the prepared heating body has a preheating function, and has a good liquid guiding effect. Especially for liquid with relatively high viscosity, problems such as poor liquid guiding and dry heating of the heating body are not prone to occur. In addition, a preparation method for the heating body is simple and convenient, and is easy for industrial production.
The technical features in the foregoing embodiments may be randomly combined. For concise description, not all possible combinations of the technical features in the embodiments are described. However, as long as combinations of the technical features do not conflict with each other, the combinations of the technical features are considered as falling within the scope described in this specification.
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 |
|---|---|---|---|
| 202011595814.6 | Dec 2020 | CN | national |
This application is a continuation of International Patent Application No. PCT/CN2021/134818, filed on Dec. 1, 2021, which claims priority to Chinese Patent Application No. 202011595814.6, filed on Dec. 29, 2020. The entire disclosure of both applications is hereby incorporated by reference herein.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2021/134818 | Dec 2021 | US |
| Child | 18342014 | US |
