Electronic atomization device, atomization core and heating piece of atomization core

Abstract

The utility model relates to the technical field of atomization devices, in particular to an electronic atomization device, an atomization core and a heating piece of the atomization core. At least one section of the heating piece is a section with holes, in the section with the holes of the heating piece, the average heating power of the unit volume of a first heating part is small, the average heating power of the unit volume of a second heating part is large, the first heating part is used for making contact with the oil guide piece in the using process, and the first heating part and the second heating part are oppositely arranged. The second heating part and the oil guide part are separated by the first heating part, and the second heating part is not in contact with the oil guide part, so that when the heating part is heated, the heating speed of the first heating part is slow, the first heating part is not easy to have an over-high temperature phenomenon, the oil guide part is not easy to be burnt by baking, and the problem that the atomizing core is easy to be burnt is solved.

Description

Technical Field

[0001] The present application relates to the technical field of atomization devices, and in particular to an electronic atomization device, an atomization core and a heating element thereof. Background Art

[0002] Electronic atomization devices are used to generate aerosols for users to inhale. For atomization devices that use aerosol-generating oil, the atomization device usually includes a device shell and an atomization core in the device shell. The device shell has an oil storage chamber, and the oil storage chamber stores the aerosol-generating oil. The atomization core includes oil-conducting cotton and a heating element in contact with the oil-conducting cotton. The oil-conducting cotton is used to guide the aerosol-generating oil to contact the heating element. After the heating element is heated, the aerosol-generating oil is atomized to generate an aerosol. During the use of the current atomization core, the temperature rises too quickly after the heating element is heated, and the part of the oil-conducting cotton in contact with the heating element is prone to burn. Utility Model Content

[0003] The present application provides a heating element of an atomizer core, which is used to improve the technical problem that an oil guide element in contact with the heating element in the current atomizer core is easily burnt.

[0004] In addition, the purpose of the present application is also to provide an atomizer core using the above-mentioned heating element.

[0005] In addition, the purpose of the present application is also to provide an electronic atomization device using the above-mentioned atomization core.

[0006] In a first aspect, an embodiment provides a heating element of an atomizer core, wherein at least one section of the heating element is a perforated section, the perforated section is used to heat the aerosol generating oil, the perforated section has a heating element hole extending along the perforated section, the hole wall of the perforated section includes a first heating portion and a second heating portion; the first heating portion is used to contact the oil guide member of the atomizer core, the heating element hole is between the first heating portion and the second heating portion, the first heating portion and the second heating portion are arranged opposite to each other, so that the second heating portion and the oil guide member are separated by the first heating portion; the average heating power per unit volume of the first heating portion is less than the average heating power per unit volume of the second heating portion.

[0007] Furthermore, in one embodiment, a cross-sectional area of ​​the first heating portion is greater than a cross-sectional area of ​​the second heating portion.

[0008] Furthermore, in one embodiment, the minimum thickness of the first heat generating portion is greater than or equal to the maximum thickness of the second heat generating portion.

[0009] Furthermore, in one embodiment, at least a portion of the perforated section is a spiral segment extending in a spiral shape, the spiral segment forms a spiral segment hole, the first heat-generating portion is on the spiral segment and faces the spiral segment hole, the second heat-generating portion is on the spiral segment and faces away from the spiral segment hole, or the first heat-generating portion is on the spiral segment and faces away from the spiral segment hole, and the second heat-generating portion is on the spiral segment and faces toward the spiral segment hole.

[0010] Furthermore, in one embodiment, the heating element comprises a resistance heating wire, the heating element hole passes through the resistance heating wire, and two ends of the resistance heating wire are respectively used to connect to the positive and negative poles of a power source.

[0011] Furthermore, in one embodiment, the holed section is integrally machined or cast.

[0012] Furthermore, in one embodiment, the heating element hole is a circular hole, the cross section of the hole section is circular, and the heating element hole is eccentrically arranged in the hole section.

[0013] In a second aspect, an embodiment provides an atomizer core, including an oil guide member and a heating member;

[0014] At least one section of the heating element is a perforated section, which is used to heat the aerosol generating oil. The perforated section has a heating element hole extending along the perforated section, and the hole wall of the perforated section includes a first heating part and a second heating part; the first heating part is in contact with the oil guiding part, and the heating element hole is between the first heating part and the second heating part, and the first heating part and the second heating part are arranged opposite to each other so that the second heating part and the oil guiding part are separated by the first heating part; the heating power of the first heating part is less than the heating power of the second heating part.

[0015] Furthermore, in one embodiment, a cross-sectional area of ​​the first heating portion is greater than a cross-sectional area of ​​the second heating portion.

[0016] Furthermore, in one embodiment, the minimum thickness of the first heat generating portion is greater than or equal to the maximum thickness of the second heat generating portion.

[0017] Furthermore, in one embodiment, at least a portion of the perforated section is a spiral segment extending in a spiral shape, the spiral segment forms a spiral segment hole, the first heat-generating portion is on the spiral segment and faces the spiral segment hole, the second heat-generating portion is on the spiral segment and faces away from the spiral segment hole, or the first heat-generating portion is on the spiral segment and faces away from the spiral segment hole, and the second heat-generating portion is on the spiral segment and faces toward the spiral segment hole.

[0018] Furthermore, in one embodiment, the heating element comprises a resistance heating wire, the heating element hole passes through the resistance heating wire, and two ends of the resistance heating wire are respectively used to connect to the positive and negative poles of a power source.

[0019] Furthermore, in one embodiment, the holed section is integrally machined or cast.

[0020] Furthermore, in one embodiment, the heating element hole is a circular hole, the cross section of the hole section is circular, and the heating element hole is eccentrically arranged in the hole section.

[0021] Furthermore, in one embodiment, the oil guide member is oil guide cotton.

[0022] In a third aspect, an embodiment provides an electronic atomization device, comprising a device shell and an atomization core, wherein the atomization core is located in the device shell, and the device shell has an oil storage chamber for supplying oil to the atomization core;

[0023] At least one section of the heating element is a perforated section, which is used to heat the aerosol generating oil. The perforated section has a heating element hole extending along the perforated section, and the hole wall of the perforated section includes a first heating part and a second heating part; the first heating part is in contact with the oil guiding part, and the heating element hole is between the first heating part and the second heating part, and the first heating part and the second heating part are arranged opposite to each other so that the second heating part and the oil guiding part are separated by the first heating part; the heating power of the first heating part is less than the heating power of the second heating part.

[0024] Furthermore, in one embodiment, a cross-sectional area of ​​the first heating portion is greater than a cross-sectional area of ​​the second heating portion.

[0025] Furthermore, in one embodiment, the minimum thickness of the first heat generating portion is greater than the maximum thickness of the second heat generating portion.

[0026] Furthermore, in one embodiment, at least a portion of the perforated section is a spiral segment extending in a spiral shape, the spiral segment forms a spiral segment hole, the first heat-generating portion is on the spiral segment and faces the spiral segment hole, the second heat-generating portion is on the spiral segment and faces away from the spiral segment hole, or the first heat-generating portion is on the spiral segment and faces away from the spiral segment hole, and the second heat-generating portion is on the spiral segment and faces toward the spiral segment hole.

[0027] Furthermore, in one embodiment, the heating element comprises a resistance heating wire, the heating element hole passes through the resistance heating wire, and two ends of the resistance heating wire are respectively used to connect to the positive and negative poles of a power source.

[0028] Furthermore, in one embodiment, the holed section is integrally machined or cast.

[0029] Furthermore, in one embodiment, the heating element hole is a circular hole, the cross section of the hole section is circular, and the heating element hole is eccentrically arranged in the hole section.

[0030] Furthermore, in one embodiment, the oil guide member is oil guide cotton.

[0031] According to the heating element of the atomizer core of the above embodiment, at least one section of the heating element is a section with holes. In the section with holes of the heating element, the average heating power per unit volume of the first heating part is less than the average heating power per unit volume of the second heating part. When in use, the first heating part is used to contact the oil guide part. The first heating part and the second heating part are arranged opposite to each other, and the second heating part and the oil guide part are separated by the first heating part, and the second heating part does not contact the oil guide part. In this way, when the heating element is heated up, the heating speed of the first heating part is slower, the first heating part is not prone to overheating, the oil guide part is not prone to being burnt, and the problem of the atomizer core being easily burnt is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of an atomizer core in an embodiment;

[0033] Figure 2 A top view of an atomizer core in one embodiment;

[0034] Figure 3 In one embodiment, Figure 2 Sectional view of AA in the middle;

[0035] Figure 4 for Figure 3 An enlarged view of part A in the figure (the dotted line in the figure indicates the boundary between the first heating part and the second heating part).

[0036] List of feature names corresponding to the figure marks in the figure: 1. Oil guide part; 11. Oil guide part hole; 2. Heat-generating part; 20. Perforated section; 21. Heat-generating part hole; 22. First heat-generating part; 23. Second heat-generating part; 24. First electrode; 25. Second electrode; 26. Spiral section hole. DETAILED DESCRIPTION

[0037] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0038] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0039] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0040] In response to the problem of burnt smell in the aerosol of the electronic atomization device in the related art, the present application has made an innovative design for the heating element, so that the average heating power per unit volume of one part is smaller than the average heating power per unit volume of another part, and the part with small average heating power per unit volume is in contact with the oil guide part, so that the temperature of the oil guide part is not easy to be too high and it is not easy to be burnt.

[0041] In one embodiment, please refer to Figures 1 to 4 The atomizer core includes an oil guide member 1 and a heating member 2, wherein at least one section of the heating member 2 is a perforated section 20, and the perforated section 20 has a heating member hole 21 extending along the perforated section 20, and the perforated section 20 is used to heat the aerosol generating oil so that the aerosol generating oil generates aerosol.

[0042] The hole wall of the hole section 20 includes a first heat generating portion 22 and a second heat generating portion 23, wherein the first heat generating portion 22 is used to contact the oil guide member 1, the heat generating portion hole 21 is located between the first heat generating portion 22 and the second heat generating portion 23, and the first heat generating portion 22 and the second heat generating portion 23 are arranged opposite to each other so that the second heat generating portion 23 is separated from the oil guide member 1 by the first heat generating portion 22, even if the second heat generating portion does not contact the oil guide member 1. The average heat generating power per unit volume in the first heat generating portion 22 is less than the average heat generating power per unit volume in the second heat generating portion 23.

[0043] By making the average heating power per unit volume in the first heating part 22 smaller than the average heating power per unit volume in the second heating part 23, the first heating part 22 is in contact with the oil guide 1. In this way, when the heating part 2 heats up quickly after being powered on, the second heating part 23 heats up quickly, while the first heating part 22 heats up slowly. The first heating part 22 is not prone to overheating, and the oil guide 1 is not prone to being burnt, thus improving the technical problem that the oil guide 1 in contact with the heating part 2 in the atomizer core is prone to being burnt. In addition, compared with the solid heating part in the related art, under the condition of the same wire diameter, the resistance value of the hole section is larger and the heat generation is larger.

[0044] The average heating power per unit volume of the first heating portion 22 refers to the ratio of the heating power of the first heating portion 22 to the volume of the first heating portion 22, and the average heating power per unit volume of the second heating portion 23 refers to the ratio of the heating power of the second heating portion 23 to the volume of the second heating portion 23. The temperature rises faster in a portion with a larger average heating power per unit volume, and slower in a portion with a smaller average heating power per unit volume.

[0045] It should be noted that the hole wall described in this application refers to the portion between the inner wall surface of the hole in the heating element hole and the outer surface of the heating element. Similarly, the first heating portion and the second heating portion are also a section of the hole wall, and should be understood as the portion between the inner wall surface of the hole and the outer surface of the heating element. Specifically, in one embodiment, the cross-sectional area of ​​the first heating portion is greater than the cross-sectional area of ​​the second heating portion.

[0046] Unless otherwise specified, the thickness of the hole wall refers to the dimension between the inner wall of the hole and the outer surface of the heating element.

[0047] Regarding the form of the oil guide member 1, in one embodiment, please refer to Figure 3 and Figure 4 The oil guide member 1 is oil guide cotton. In addition to the oil guide cotton, in some other embodiments, the oil guide member 1 can also be made of other porous materials that can play an oil guide role, such as porous ceramics, high temperature resistant sponge, etc.

[0048] Regarding the form of the heating element 2, in one embodiment, please refer to Figure 3 and Figure 4 The heating element 2 includes a resistance heating wire, and the heating element hole 21 passes through the resistance heating wire, that is, the hole section 20 is the resistance heating wire. The two ends of the resistance heating wire are used to connect the positive and negative poles of the power supply respectively. Specifically, one end of the resistance heating wire is connected to the positive pole of the power supply through the first electrode 24, and the other end is connected to the negative pole of the power supply through the second electrode 25. Specifically, in one embodiment, please refer to Figure 3 and Figure 4 , the perforated section 20 is in the shape of a spiral spring. In some other embodiments, in addition to the resistance heating wire, any other feasible methods can also be used, such as heating strips, conductive metal grids, etc., wherein the conductive metal grids generate heat more evenly than the spiral resistance heating wires, and are easy to increase the atomization amount. In some other embodiments, the perforated section of the resistance heating wire can also be a multi-segment structure, in which case the resistance heating wire can be a structure composed of multiple perforated sections and non-perforated sections.

[0049] In one embodiment, please refer to Figures 2 to 4 , at least a portion of the perforated section 20 is a spiral section extending in a spiral shape, the spiral section surrounds a spiral section hole 26, the first heating portion 22 is on the spiral section and faces the spiral section hole 26, and the second heating portion 23 is on the spiral section and faces away from the spiral section hole 26. The oil guide member 1 has an oil guide member hole 11 in the middle, the heating member 2 is installed in the oil guide member hole 11, the first heating portion 22 of the heating member 2 is on the outside, and the second heating portion 23 is on the inside. The first heating portion 22 contacts the oil guide member 1, so that the oil guide member 1 can guide the aerosol-generating oil to the heating member 2 to be heated by the heating member 2. In one embodiment, please refer to Figure 3 and Figure 4 The hole section 20 is a resistance heating wire with a hollow structure. The hollow resistance heating wire with uneven heating has uneven wall thickness, which ensures that the hole wall in contact with the oil guide member is thicker than the hole wall not in contact with the oil guide member, so that the first heating part in contact with the oil guide member heats up slowly and is not prone to rapid temperature rise and cause the core to burn.

[0050] In addition to installing the heating element 2 in the oil guide hole 11, in some other embodiments, the guide may also be in the shape of a rod, the first heating portion 22 is on the spiral section and faces away from the spiral section hole 26, the second heating portion 23 is on the spiral section and faces the spiral section hole 26, and the guide is inserted into the spiral section hole 26. In some other embodiments, the heating element 2 may be in the shape of a tube surrounded by a conductive metal grid in addition to being in the shape of a spiral. Based on the above design concept, the perforated section 20 may be either inside or outside the tube surrounded by a conductive metal grid. In some other embodiments, the heating section may also be in the shape of a flat plate, in which case the oil guide 1 is also in the shape of a flat plate, and the oil guide 1 is stacked with the heating section.

[0051] In one embodiment, please refer to Figure 3 and Figure 4 , the cross-sectional area of ​​the first heating portion 22 is greater than the cross-sectional area of ​​the second heating portion 23. In some other embodiments, the cross-sectional area of ​​the first heating portion 22 may also be equal to the cross-sectional area of ​​the second heating portion 23, in which case the first heating portion 22 may be made of a material different from that of the second heating portion 23, and the resistivity of the first heating portion 22 is less than that of the second heating portion 23.

[0052] Further, in one embodiment, please refer to Figure 3 and Figure 4 , the minimum thickness of the first heating part 22 is equal to the maximum thickness of the second heating part 23. In this way, it is easier to ensure that the average heating power per unit volume of the first heating part is less than the average heating power per unit volume of the second heating part. Specifically, in one embodiment, the heating element hole 21 is a circular hole, the cross-section of the hole section 20 is circular, and the heating element hole 21 is eccentrically arranged in the hole section 20. Both the circular hole and the circular cross-section are easy to process and form. In some other embodiments, the first heating part 22 and the second heating part 23 may not be directly connected, in which case the minimum thickness of the first heating part 22 may be greater than the maximum thickness of the second heating part 23. In some other embodiments, in addition to being circular, the hole section may also be any other feasible shape, such as square, elliptical or special-shaped. Similarly, the heating element hole may also be an elliptical hole, a square hole or a special-shaped hole.

[0053] In one embodiment, the perforated section 20 is machined or cast. Specifically, the heating element 2 is formed by extrusion. In some other embodiments, the perforated section 20 can also be formed by other feasible methods, such as casting when the perforated section 20 is large in size, or rolling the perforated section 20 with a sheet.

[0054] In one embodiment, the perforated section 20 is a hollow section, and no other material is filled in the heating element hole 21 of the perforated section 20. In some other embodiments, the heating element hole 21 may also be filled with insulating material according to actual needs.

[0055] In one embodiment, when the heating element of the atomizer core is heated, the heating rate of the first heating portion 22 in contact with the oil guide member 1 is lower than the heating rate of the second heating portion 23, so that the oil guide member 1 is not prone to overheating and is not prone to being scorched, and the aerosol is not prone to having a burnt smell.

[0056] In an embodiment of a heating element of an atomizer core, the heating element of the atomizer core is the heating element described in any one of the above embodiments, and the details are not repeated here.

[0057] In an embodiment of an electronic atomization device, the electronic atomization device includes a device shell and an atomization core. The atomization core is located in the device shell, and an oil storage chamber is provided in the device shell for supplying oil to the atomization core.

[0058] The electronic atomization device further includes a power supply component, which supplies power to the heating element. In one embodiment, the power supply component is installed in the device shell. In one embodiment, the power supply component is modularly arranged, and the power supply component and the device shell are detachably fixed together.

[0059] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For technicians in the technical field to which the present application belongs, they can also make some simple deductions, deformations or substitutions based on the ideas of the present application.

Claims

1. A heating element of an atomizer core, characterized in that: At least one section of the heating element is a perforated section, which is used to heat the aerosol generating oil. The perforated section has a heating element hole extending along the perforated section, and the hole wall of the perforated section includes a first heating part and a second heating part; the first heating part is used to contact the oil guide part of the atomization core; the heating element hole is between the first heating part and the second heating part, and the first heating part and the second heating part are arranged opposite to each other, so that the second heating part and the oil guide part are separated by the first heating part; the average heating power per unit volume of the first heating part is less than the average heating power per unit volume of the second heating part, so that the temperature rise rate of the first heating part is less than the temperature rise rate of the second heating part.

2. The heating element of the atomizer core according to claim 1, characterized in that: A minimum thickness of the first heat generating portion is greater than or equal to a maximum thickness of the second heat generating portion.

3. The heating element of the atomizer core according to claim 1, characterized in that: A cross-sectional area of ​​the first heat generating portion is greater than a cross-sectional area of ​​the second heat generating portion.

4. The heating element of the atomizer core according to claim 1, 2 or 3, characterized in that: At least a portion of the holed section is a spiral segment extending in a spiral shape, the spiral segment forms a spiral segment hole, the first heat-generating portion is on the spiral segment and faces the spiral segment hole, the second heat-generating portion is on the spiral segment and faces away from the spiral segment hole, or the first heat-generating portion is on the spiral segment and faces away from the spiral segment hole, the second heat-generating portion is on the spiral segment and faces toward the spiral segment hole.

5. The heating element of the atomizer core according to claim 1, 2 or 3, characterized in that: The heating element comprises a resistance heating wire, the heating element hole passes through the resistance heating wire, and two ends of the resistance heating wire are respectively used to connect the positive and negative electrodes of a power source.

6. The heating element of the atomizer core according to claim 1, 2 or 3, characterized in that: The hole section is integrally machined or cast.

7. The heating element of the atomizer core according to claim 1, 2 or 3, characterized in that: The heating element hole is a circular hole, the cross section of the hole section is circular, and the heating element hole is eccentrically arranged in the hole section.

8. An atomizer core, characterized in that: It comprises an oil guide member and a heating element as described in any one of claims 1 to 7.

9. The atomizer core according to claim 8, characterized in that: The oil guide piece is oil guide cotton.

10. An electronic atomization device, characterized in that: The device comprises a device shell and the atomizer core as claimed in claim 8 or 9, wherein the atomizer core is located in the device shell, and the device shell has an oil storage chamber for supplying oil to the atomizer core.

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