Electronic atomization device
By using a two-way memory alloy electrode in the electronic atomization device, the temperature change control circuit is disconnected or re-connected, the dry burning problem caused by the reduced oil supply capacity of the heating element is solved, the production cost is reduced and the stability of the device is improved sex.
Patent Information
- Application Number
- CN202420898083.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The existing electronic atomization device may easily cause dry burning when the oil supply capacity of the heating element is reduced, resulting in a sharp increase in the temperature of the heating element, increasing production costs and strict requirements on the heating element materials.
Using electrodes made of two-way memory alloy, the electrodes are switched between stretching and compressed states through temperature changes, and the circuit is disconnected or re-connected to prevent the heating element from drying out. The phase change temperature of the electrode is adjusted to control the heating element. working and non-working area temperatures.
It effectively prevents the heating body from burning, reduces production costs, and improves the stability and reliability of the electrodes, avoids the burning situation caused by excessive temperature of the heating body.
Smart Images
Figure CN222357274U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electronic atomization, and in particular to an electronic atomization device. Background Art
[0002] As a substitute for traditional cigarettes, electronic atomization devices have the advantages of no tar, no ash, no open flame, etc. compared with traditional cigarettes, which can effectively avoid the various harmful substances produced by traditional cigarettes when they are ignited. Among them, the heating structure is the core component of the electronic atomization device. The heating structure of the electronic atomization device is usually composed of an oil guide body, a heating body and an electrode. Specifically, the oil guide body is responsible for directing the atomized liquid to the heating body. After the heating body is energized, Joule heat is generated, thereby heating the atomized liquid supplied by the atomizing oil guide body to form an inhalable aerosol. When the heating structure works normally, the oil supply capacity of the oil guide body and the oil consumption capacity of the heating body are matched with each other, and the two will reach a stable equilibrium state. When the oil supply capacity of the oil guide body is suddenly reduced due to some reasons, the balance between oil supply and oil consumption will be destroyed. At this time, the heating body will produce dry burning due to insufficient oil supply, causing the temperature of the heating body to rise sharply, resulting in a burnt core. In severe cases, the heating body may even be burned out.
[0003] In order to solve the above problems, the heating structure in the related technology usually adopts a heating element material with a high TCR (temperature coefficient of resistance), and uses the corresponding relationship between the resistance and temperature of the heating element material to set a related chip to detect the resistance of the heating element in real time to obtain the real-time temperature data of the heating element. When the real-time temperature data of the heating element reaches the preset value, the circuit where the heating element is located is automatically cut off to achieve the temperature control function of preventing the heating element from burning dry. However, the above solution requires the addition of chip hardware and the design of related temperature control program software, which will greatly increase the production cost of the electronic atomization device. At the same time, it has high requirements on the TCR of the heating element material and the application conditions are relatively harsh. Utility Model Content
[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an electronic atomization device, which can cut off the power supply of the heating element when the heating element is dry-burned, thereby preventing the heating element from continuing to dry-burn.
[0005] According to the electronic atomization device of the embodiment of the present application, it includes: a shell, the shell is an internal hollow cavity structure, one end of the shell is provided with an air outlet, the interior of the shell is provided with a liquid storage cavity, and the liquid storage cavity is used to store atomized liquid; a heating structure, the heating structure is arranged in the shell, the heating structure includes an oil guide body, a heating body and an electrode, the oil guide body has a liquid suction surface and an atomization surface arranged oppositely, the liquid suction surface is used to contact the atomized liquid in the liquid storage cavity and guide the contacted atomized liquid to the atomization surface, the heating body is arranged on the oil guide body, the heating body is used to heat the atomized liquid guided from the liquid suction surface to the atomization surface to form an inhalable aerosol leading to the air outlet, the electrode is used to be connected to a power supply, the electrode is made of a two-way memory alloy, and the electrode has There are two types of shape memory: a stretched state and a compressed state. When the electrode is in the stretched state, one end of the electrode is in contact with the heating element so that the heating element can be connected to the power supply through the electrode. When the electrode is in the compressed state, the electrode is separated from the heating element. When the temperature of the electrode is higher than or equal to the phase change temperature, the electrode can be deformed to the compressed state. When the temperature of the electrode is lower than the phase change temperature, the electrode can be deformed to the stretched state. The heating element has a working area and a non-working area. The working area is used to heat the atomized liquid that is atomized and directed from the liquid suction surface to the atomizing surface. The non-working area is used to abut against the electrode. When the heating element works normally, the temperature of the non-working area is lower than the phase change temperature of the electrode.
[0006] According to the electronic atomization device of the embodiment of the present application, at least the following beneficial effects are achieved: since the electrode is made of a two-way memory alloy, through certain training, the electrode can form two shape memories of a tensile state and a compressed state. When the oil supply capacity of the oil-conducting body is suddenly reduced due to some reasons, the balance between oil supply and oil consumption is destroyed. At this time, the temperature of the heating element will increase due to dry burning, so that the temperature of the electrode will increase accordingly. When the temperature of the electrode is higher than or equal to the phase transition temperature, the electrode undergoes a phase change from martensite to austenite, thereby deforming from a tensile state to a compressed state, so that the electrode is separated from the heating element, and then the heating element is powered off to prevent the heating element from continuing to dry burn. When the temperature of the electrode drops and is lower than the phase transition temperature, the electrode undergoes a phase change from austenite to martensite, thereby deforming from a compressed state to a tensile state, so that the electrode is in contact with the heating element again, so that the heating element can be powered on and work.
[0007] According to some embodiments of the present application, the non-working area is at least partially planar.
[0008] According to some embodiments of the present application, the electrode is in the shape of a coil spring.
[0009] According to some embodiments of the present application, the heating structure further includes a guide column, the guide column is an insulator, and the electrode sleeve is disposed outside the guide column.
[0010] According to some embodiments of the present application, the resistance of the electrode is smaller than the resistance of the heating element, wherein the resistance of the electrode is 1% to 15% of the total resistance of the two.
[0011] According to some embodiments of the present application, when the electrode is deformed from the stretched state to the compressed state, a change in length of the electrode is 10% to 50% of the length of the electrode in the stretched state.
[0012] According to some embodiments of the present application, the electrode is made of titanium-nickel alloy.
[0013] According to some embodiments of the present application, the phase change temperature of the electrode is 60°C to 150°C, and / or the temperature of the non-working area is 40°C to 100°C.
[0014] According to some embodiments of the present application, the oil conducting body is made of a hard porous medium and / or a soft porous medium.
[0015] According to some embodiments of the present application, the heating element is a heating film or a heating wire attached to the oil guiding element.
[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0018] Figure 1 It is a structural schematic diagram of a heating structure when an electrode in an electronic atomization device according to an embodiment of the present application is deformed to a stretched state;
[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of the heating structure when the electrode in the heating structure is deformed to a compressed state;
[0020] Figure 3 It is a structural schematic diagram of the heating structure when the electrode in the electronic atomization device of another embodiment of the present application is deformed to a stretched state.
[0021] Reference numerals:
[0022] The oil-conducting body 100 , the heating body 200 , the electrode 300 , and the guide post 400 . DETAILED DESCRIPTION
[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0024] In the description of the present application, it should be understood that if orientation descriptions are involved, the orientations or positional relationships indicated, such as up, down, front, back, left, and right, are based on the orientations or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.
[0025] In the description of this application, if the words "some", "greater than", "less than", "exceed", "above", "below", "within" etc. appear, "some" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number, and "above", "below", "within", etc. are understood to include the number.
[0026] In the description of this application, if the words "first", "second", etc. appear, they are only used to distinguish technical features and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0027] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.
[0028] As the core component of the electronic atomization device, the heating structure is usually composed of an oil guide, a heating element and an electrode. Specifically, the oil guide is responsible for directing the atomized liquid to the heating element. After the heating element is energized, it generates Joule heat, thereby heating the atomized liquid supplied by the atomizing oil guide to form an inhalable aerosol. When the heating structure works normally, the oil supply capacity of the oil guide and the oil consumption capacity of the heating element are matched with each other, and the two will reach a stable equilibrium state. When the oil supply capacity of the oil guide is suddenly reduced due to some reason, the balance between oil supply and oil consumption will be destroyed. At this time, the heating element will produce dry burning due to insufficient oil supply, causing the temperature of the heating element to rise sharply, resulting in the core being burnt. In severe cases, the heating element may even be burned out.
[0029] In order to solve the above problems, the heating structure in the related technology usually adopts a heating element material with a high TCR (temperature coefficient of resistance), and uses the corresponding relationship between the resistance and temperature of the heating element material to set a related chip to detect the resistance of the heating element in real time to obtain the real-time temperature data of the heating element. When the real-time temperature data of the heating element reaches the preset value, the circuit where the heating element is located is automatically cut off to achieve the temperature control function of preventing the heating element from burning dry. However, the above solution requires the addition of chip hardware and the design of related temperature control program software, which will greatly increase the production cost of the electronic atomization device. At the same time, it has high requirements on the TCR of the heating element material and the application conditions are relatively harsh.
[0030] To this end, it is urgent to optimize the traditional electronic atomization device to solve the above-mentioned technical problems. The optimized electronic atomization device of the present application will be described in detail below with reference to the accompanying drawings.
[0031] Reference Figures 1 to 3 According to an embodiment of the present application, the electronic atomization device includes a shell (not shown in the figure) and a heating structure.
[0032] Specifically, the shell is an internal hollow cavity structure, and the interior of the shell is provided with a liquid storage cavity (not shown in the figure) and an airway (not shown in the figure) that are interconnected. The liquid storage cavity is used to store atomized liquid, and one end of the shell is provided with an air outlet (not shown in the figure) connected to the airway; the heating structure is arranged in the shell, and specifically, the heating structure is arranged at the connection point between the liquid storage cavity and the airway, and the heating structure includes an oil guide body 100, a heating body 200 and an electrode 300, the oil guide body 100 has a liquid suction surface and an atomization surface that are arranged oppositely, the liquid suction surface of the oil guide body 100 is used to contact the atomized liquid in the liquid storage cavity and guide the contacted atomized liquid to the atomization surface of the oil guide body 100, the heating body 200 is arranged on the oil guide body 100, and the heating body 200 is used to heat the atomized liquid that is guided from the liquid suction surface of the oil guide body 100 to the atomization surface of the oil guide body 100 to form an inhalable aerosol leading to the air outlet, and the electrode 300 0 is used to be connected to a power source, the electrode 300 is made of a two-way memory alloy, and the electrode 300 has two shape memories of a stretched state and a compressed state. When the electrode 300 is in a stretched state, one end of the electrode 300 abuts against the heating element 200, so that the heating element 200 can be connected to a power source through the electrode 300, and when the electrode 300 is in a compressed state, the electrode 300 is separated from the heating element 200; wherein, when the temperature of the electrode 300 is higher than or equal to the phase change temperature, the electrode 300 can be deformed to a compressed state, and when the temperature of the electrode 300 is lower than the phase change temperature, the electrode 300 can be deformed to a stretched state, and the heating element 200 has a working area and a non-working area, the working area of the heating element 200 is used to heat the atomized liquid that is atomized and directed from the liquid absorption surface of the oil guide body 100 to the atomization surface of the oil guide body 100, and the non-working area of the heating element 200 is used to abut against the electrode 300.
[0033] Since the electrode 300 is made of a two-way memory alloy, through certain training (repeated heating and cooling), the electrode 300 can form two shape memories of a tensile state and a compressed state. When the oil supply capacity of the oil-conducting body 100 is suddenly reduced due to some reasons, the balance between oil supply and oil consumption is destroyed. At this time, the temperature of the heating element 200 will increase due to dry burning, so that the temperature of the electrode 300 will increase accordingly. When the temperature of the electrode 300 is higher than or equal to the phase transition temperature, the electrode 300 undergoes a phase change, from martensite to austenite, thereby deforming from a tensile state to a compressed state, so that the electrode 300 is separated from the heating element 200, and then the heating element 200 is powered off to prevent the heating element 200 from continuing to dry burn. When the temperature of the electrode 300 drops and is lower than the phase transition temperature, the electrode 300 undergoes a phase change, from austenite to martensite, thereby deforming from a compressed state to a tensile state, so that the electrode 300 is in contact with the heating element 200 again, so that the heating element 200 can be powered on and work. Among them, when the heating element 200 works normally, the temperature of the non-working area of the heating element 200 is lower than the phase change temperature of the electrode 300, which is beneficial to prevent the electrode 300 from being heated to the phase change temperature when the heating element 200 works normally, and further helps to improve the stability and reliability of the electrode 300 when working.
[0034] It should be noted that, in some of the embodiments, the heating element 200 is at least partially disposed on the atomization surface of the oil-conducting body 100 , which is beneficial to improving the heating efficiency of the heating element 200 .
[0035] It should be noted that, in some of the embodiments, the non-working area of the heating element 200 is at least partially planar, so that the electrode 300 can better abut against the non-working area of the heating element 200 .
[0036] Reference Figures 1 to 3 In some embodiments, the electrode 300 is in the shape of a coil spring, so that the electrode 300 can be more easily switched between a tension state and a compression state.
[0037] It should be noted that, in some other embodiments, the electrode 300 may also be in a non-spiral wavy structure, which is not limited here.
[0038] Reference Figure 3In some embodiments, the heating structure further includes a guide post 400, which is an insulator. The electrode 300 is sleeved outside the guide post 400. The guide post 400 can not only guide the deformation process of the electrode 300, but also limit the electrode 300 so that the electrode 300 can stably abut against the heating element 200 when deformed to a stretched state. Specifically, the guide post 400 can be fixedly connected to the heating element 200, or fixedly arranged in the housing of the electronic atomization device (integrally formed in the housing of the electronic atomization device, or fixedly connected to the housing of the electronic atomization device through a connecting structure), which is not limited here.
[0039] It should be noted that, in some embodiments, the resistance of the electrode 300 is less than the resistance of the heating element 200, wherein the resistance of the electrode 300 is 1% to 15% of the total resistance of the two (i.e., the electrode 300 and the heating element 200). Specifically, the resistance of the electrode 300 can be 1% or 15% of the total resistance of the two, or the resistance of the electrode 300 can be 10% of the total resistance of the two. Of course, the resistance of the electrode 300 can also be other values within the above numerical range, which is not limited here.
[0040] It should be noted that, in some embodiments, when the electrode 300 is deformed from the stretched state to the compressed state, the length change of the electrode 300 is 10% to 50% of the length of the electrode 300 in the stretched state. Specifically, the length change of the electrode 300 can be 10% or 50% of the length of the electrode 300 in the stretched state, or 30% of the length of the electrode 300 in the stretched state. Of course, the length change of the electrode 300 can also be other values within the above numerical range, which is not limited here.
[0041] It should be noted that, in some embodiments, the electrode 300 is made of titanium-nickel alloy.
[0042] It should be noted that, in some of the embodiments, the titanium-nickel alloy used to make the electrode 300 contains an additive element, and the additive element is one of Zr, Hf, and Mo. The additive element is used to adjust the phase transition temperature of the electrode 300 .
[0043] It should be noted that, in some other embodiments, the phase change temperature of the electrode 300 may also be adjusted by adjusting the ratio of titanium to nickel in the titanium-nickel alloy used to make the electrode 300, which is not limited here.
[0044] It should be noted that, in some embodiments, the phase change temperature of the electrode 300 is 60° C. to 150° C. Specifically, the phase change temperature of the electrode 300 may be 60° C. or 150° C., or 100° C., and of course, the phase change temperature of the electrode 300 may also be other values within the above numerical range, which is not limited here.
[0045] It should be noted that, in some embodiments, the temperature of the non-working area of the heating element 200 is 40° C. to 100° C. Specifically, the temperature of the non-working area of the heating element 200 may be 40° C. or 100° C., and the temperature of the non-working area of the heating element 200 may also be 60° C. Of course, the temperature of the non-working area of the heating element 200 may also be other values within the above numerical range, which is not limited here.
[0046] It should be noted that, in some other embodiments, the electrode 300 may also be made of other shape memory alloys, such as Cu-Al-Zn, Fe-Mn-Si, Ni-Ti-Al, etc., which are not limited here.
[0047] Specifically, there are several solutions for reference regarding the design of temperature-related parameters:
[0048] The phase change temperature of the electrode 300 is 80°C. When the heating element 200 works normally, the temperature of the non-working area of the heating element 200 is lower than 65°C. When the heating element 200 is dry-burned, the temperature of the non-working area of the heating element 200 is 90°C to 110°C.
[0049] The phase change temperature of the electrode 300 is 90°C. When the heating element 200 works normally, the temperature of the non-working area of the heating element 200 is lower than 70°C. When the heating element 200 is dry-burned, the temperature of the non-working area of the heating element 200 is 100°C to 120°C.
[0050] The phase change temperature of the electrode 300 is 100°C. When the heating element 200 works normally, the temperature of the non-working area of the heating element 200 is lower than 80°C. When the heating element 200 is dry-burned, the temperature of the non-working area of the heating element 200 is 110°C to 130°C.
[0051] The phase change temperature of the electrode 300 is 110°C. When the heating element 200 works normally, the temperature of the non-working area of the heating element 200 is lower than 90°C. When the heating element 200 is dry-burned, the temperature of the non-working area of the heating element 200 is 120°C to 140°C.
[0052] Specifically, in view of the temperature difference between the working area of the heating element 200 and the non-working area of the heating element 200, the resistance value of each area of the heating element 200 can be designed to achieve a customized distribution of the temperature field of the heating element 200, thereby distinguishing the working area from the non-working area. Among them, the resistance value of the working area of the heating element 200 is greater than the resistance value of the non-working area of the heating element 200. In addition, the area of the non-working area of the heating element 200 can also be increased to increase the distance between the electrode 300 and the working area of the heating element 200, thereby preventing the electrode 300 from being heated to the phase change temperature when the heating element 200 is working normally.
[0053] It should be noted that, in some embodiments, the oil-conducting body 100 is made of a hard porous medium and / or a soft porous medium.
[0054] It should be noted that, in some embodiments, the oil-conducting body 100 is made of a hard porous medium, which is beneficial to improving the structural strength of the oil-conducting body 100, so that the oil-conducting body 100 is not easily deformed during operation, and is beneficial to ensuring the stability and reliability of the matching relationship between the oil-conducting body 100 and other components. Specifically, the oil-conducting body 100 is made of porous ceramics, and of course, the oil-conducting body 100 can also be made of porous glass, which is not limited here.
[0055] It should be noted that, in some other embodiments, the oil-conducting body 100 is made of a soft porous medium. Specifically, the oil-conducting body 100 is made of oil-conducting cotton. Of course, the oil-conducting body 100 can also be made of a hard porous medium combined with a soft porous medium, which is not limited here.
[0056] It should be noted that, in some embodiments, the heating element 200 is a heating film attached to the oil conducting body 100. Of course, the heating element 200 may also be a heating wire attached to the oil conducting body 100, which is not limited here.
[0057] In the description of this specification, if the description involves reference terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" and "some examples", it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0058] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.
Claims
1. An electronic atomization device, characterized in that: include: A shell, wherein the shell is a hollow cavity structure, an air outlet is provided at one end of the shell, and a liquid storage cavity is provided inside the shell, and the liquid storage cavity is used to store atomized liquid; A heating structure, the heating structure is arranged in the shell, the heating structure includes an oil guide body, a heating element and an electrode, the oil guide body has a liquid suction surface and an atomization surface arranged oppositely, the liquid suction surface is used to contact the atomized liquid in the liquid storage chamber and guide the contacted atomized liquid to the atomization surface, the heating element is arranged on the oil guide body, the heating element is used to heat the atomized liquid guided from the liquid suction surface to the atomization surface, so as to form an inhalable aerosol leading to the air outlet, the electrode is used to be connected to a power source, the electrode is made of a two-way memory alloy, the electrode has two shape memories of a stretched state and a compressed state, when the electrode is in the stretched state, one end of the electrode abuts against the heating element, so that the heating element can be connected to the power source through the electrode, when the electrode is in the compressed state, the electrode is separated from the heating element; In which, when the temperature of the electrode is higher than or equal to the phase change temperature, the electrode can be deformed to the compressed state, and when the temperature of the electrode is lower than the phase change temperature, the electrode can be deformed to the stretched state. The heating element has a working area and a non-working area. The working area is used to heat the atomized liquid that is atomized and guided from the liquid suction surface to the atomization surface, and the non-working area is used to abut against the electrode. When the heating element works normally, the temperature of the non-working area is lower than the phase change temperature of the electrode.
2. The electronic atomization device according to claim 1, characterized in that: The non-working area is at least partially planar.
3. The electronic atomization device according to claim 1, characterized in that: The electrode is in the shape of a coil spring.
4. The electronic atomization device according to claim 3, characterized in that: The heating structure further comprises a guide column, which is an insulator, and the electrode sleeve is arranged outside the guide column.
5. The electronic atomization device according to claim 1, characterized in that: The resistance of the electrode is smaller than the resistance of the heating element, wherein the resistance of the electrode is 1% to 15% of the total resistance of the two.
6. The electronic atomization device according to claim 1, characterized in that: When the electrode is deformed from the stretched state to the compressed state, the length change of the electrode is 10% to 50% of the length of the electrode in the stretched state.
7. The electronic atomization device according to claim 1, characterized in that: The electrodes are made of titanium-nickel alloy.
8. The electronic atomization device according to claim 1, characterized in that: The phase change temperature of the electrode is 60°C to 150°C, and / or the temperature of the non-working area is 40°C to 100°C.
9. The electronic atomization device according to any one of claims 1 to 8, characterized in that: The oil-conducting body is made of hard porous medium and / or soft porous medium.
10. The electronic atomization device according to any one of claims 1 to 8, characterized in that: The heating element is a heating film or a heating wire attached to the oil-conducting element.