Atomizing core and atomizer

Abstract

The utility model provides an atomizing core and an atomizer. The atomizing core comprises a base body and a heating layer. The axial side of the base body is used for making contact with an atomizing medium, and the other side of the base body is provided with a heating layer. The heating layer is provided with a first electrode, a second electrode and a heating part connected between the first electrode and the second electrode, the heating part comprises a peripheral part and a central part which are connected in series, the peripheral part is of a first arc-shaped structure, the central part is of a second arc-shaped structure, and the peripheral part surrounds the peripheral side of the central part. In the axial direction of the base body, the atomizing medium can flow from one side of the base body to the other side of the base body, so that the heating layer can be used for heating the atomizing medium. A heating part of the heating layer comprises a peripheral part and a center part which are connected in series, the peripheral part is of a first arc-shaped structure, the center part is of a second arc-shaped structure, and the peripheral part surrounds the peripheral side of the center part, so that heat of the heating part is distributed in the radial direction, the temperature of all areas of the heating part can be balanced, and excessive concentration of the heat of the heating part is avoided; and the heating layer is prevented from being burnt due to dry burning.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electronic atomization technical field especially, it relates to an atomization core and atomizer. BACKGROUND

[0002] The atomization core is used for heating atomization medium for user to smoke. The atomization core includes oil guide body and heating body. The heating body in the related art is usually heating sheet, and the heat of the heating sheet is often concentrated in the central region, but the heat of the heating sheet is concentrated in the central region due to slow heat conduction of the central region, which leads to dry burning and burning paste, and the user experience is poor. SUMMARY

[0003] The technical purpose of the utility model is to provide an atomization core and atomizer, which aims to solve the technical problem of dry burning and burning paste caused by the heat of the heating sheet being concentrated in the central region in the related art.

[0004] To solve the above technical problem, the utility model is realized in this way, an atomization core, including base body and heating layer, the base body is used for contacting with atomization medium along one side of the axial direction and the other side is provided with the heating layer, the heating layer has first electrode, second electrode and heating part connected between the first electrode and the second electrode, the heating part includes series connection of peripheral part and central part, the peripheral part is first arc structure, the central part is second arc structure, and the peripheral part surrounds the outer circumferential side of the central part.

[0005] Further, in some embodiments, the peripheral part includes two sub-peripheral parts located on both sides of the central part respectively, the central part includes first end part and second end part, one end of one sub-peripheral part is connected to the first electrode and the first end part respectively, and the other end of the other sub-peripheral part is connected to the second electrode and the second end part respectively.

[0006] Further, in some embodiments, the first arc structure and the second arc structure are concentrically arranged.

[0007] Further, in some embodiments, the width size of the central part is greater than or equal to the width size of the sub-peripheral part.

[0008] Further, in some embodiments, the thermal conductivity coefficient of the base body is greater than 0.1 W / (m•K), and the thickness of the base body is 0.3-1mm.

[0009] Further, in some embodiments, the atomization core is provided with a plurality of liquid passing holes penetrating through the base body along the axial direction on both sides, and at least part of the liquid passing holes is distributed along the extension path of the central part and / or the peripheral part

[0010] Further, in some embodiments, the through hole is parallel to an axial direction of the base body, and / or the through hole has a first preset angle with the axial direction of the base body.

[0011] Further, in some embodiments, the base body includes a first region covered by the heating layer, and the through hole includes a first through hole formed in the first region and a second through hole formed in the heating portion and arranged in alignment with the first through hole.

[0012] Further, in some embodiments, the base body further includes a second region connected to the first region, and the through hole includes a plurality of third through holes formed in the second region, the plurality of third through holes being adjacent to the heating portion and distributed along an extension path parallel to the heating portion.

[0013] Further, in some embodiments, the through hole has a diameter of 0.05mm-0.2mm.

[0014] Further, an atomizer includes an oil cup storing an atomization medium and an atomizing core as described above, the atomizing core is assembled with the oil cup, and a side of the base body away from the heating layer contacts the atomization medium, an axial direction of the atomizing core is parallel to an axial direction of the oil cup, or an axial direction of the atomizing core has a second preset angle with an axial direction of the oil cup.

[0015] In the atomizing core, compared with the related art, the beneficial effects are that:

[0016] In the atomizing core, compared with the related art, the beneficial effects are that: BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1It is the three-dimensional structure schematic diagram of the atomizing core in the embodiment of the utility model.

[0019] In the drawings, various reference signs represent: 1, base; 2, heating layer; 21, central part; 22, peripheral part; 3, liquid passing hole, 31, third through hole. DETAILED DESCRIPTION

[0020] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the utility model belong to the scope of protection of the utility model.

[0021] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0022] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0023] Please see Figure 1 The utility model embodiment provides a kind of atomizing core, including base 1 and heating layer 2;Base 1 is used to contact with atomizing medium along the side of axial and another side is provided with heating layer 2;Heating layer 2 has first electrode, second electrode and heating portion connected between first electrode and second electrode, heating portion includes peripheral part 22 and central part 21 connected in series, peripheral part 22 is first arc structure, central part 21 is second arc structure, and peripheral part 22 surrounds the outer circumferential side of central part 21.

[0024] In the embodiment of the utility model, in the axial direction of the base body 1, one side of the base body 1 is used to contact the atomization medium, and the other side is provided with the heating layer 2, the atomization medium can flow from one side of the base body 1 to the other side, so that the heating layer 2 can be used to heat the atomization medium. In addition, the heating part of the heating layer 2 includes the peripheral part 22 and the center part 21 connected in series, the peripheral part 22 is a first arc structure, the center part 21 is a second arc structure, and the peripheral part 22 surrounds the outer circumferential side of the center part 21, so that the heat of the heating part is distributed along the radial direction, the temperature of each area of the heating part can be balanced, the heat of the heating part is prevented from being too concentrated, dry burning of the heating layer 2 is prevented, and user experience is improved.

[0025] Further, in some embodiments, the peripheral part 22 includes two sub-peripheral parts respectively located on both sides of the center part 21, and the center part 21 includes a first end part and a second end part, wherein the two ends of one sub-peripheral part are respectively connected to the first electrode and the first end part, and the two ends of the other sub-peripheral part are respectively connected to the second electrode and the second end part.

[0026] Specifically, the first electrode, one sub-peripheral part, the center part 21, the other sub-peripheral part and the second electrode are connected in sequence, so as to realize the series connection between the sub-peripheral part, the center part 21 and the other sub-peripheral part. And, the two sub-peripheral parts are respectively located on both sides of the center part 21, and the center part 21 and the two sub-peripheral parts are arranged in a radial direction, so that the heat generated by the heating part can be distributed along the radial direction, and the heat of the heating part can be prevented from being too concentrated to avoid burning.

[0027] Further, in some specific embodiments, the first arc structure of the two sub-peripheral parts and the second arc structure of the center part 21 are concentrically arranged, that is, the tangent line at each position of the first arc structure is parallel to the tangent line at the corresponding position of the second arc structure.

[0028] Specifically, the two sub-peripheral parts can be arranged on both sides of the center part 21 along a radial direction. The two first arc structures can be two arc segments on the same circle; the center part 21 can be a second arc structure, and the second arc structure can be a 2 / 3-9 / 10 circle. In addition, the circle on which the first arc structure is located and the circle on which the second arc structure is located can be concentric circles, and the radius of the circle on which the first arc structure is located is greater than the radius of the circle on which the second arc structure is located, so that the center part 21 is located at the inner ring of the heating part, and the peripheral part 22 is located at the outer ring of the heating part, so that the heat generated by the heating part is distributed inside and outside, and the heat of the heating part is prevented from being too concentrated.

[0029] Further, in some specific embodiments, a transition portion can be further arranged between the first end of the center portion 21 and one of the sub-peripheral portions. Another transition portion can be further arranged between the second end of the center portion 21 and another of the sub-peripheral portions. Thus, for the heating layer 2 in this embodiment, the first electrode, one of the sub-peripheral portions, the transition portion, the center portion 21, another transition portion, another of the sub-peripheral portions, and the second electrode are connected in series. By arranging the transition portions, the overall structure is more natural, and the flow of current can be smoother.

[0030] Further, in some specific embodiments, the two sub-peripheral portions and the center portion 21 are in arc-shaped structures, and the transition portions can also be in arc-shaped structures, so that the overall structure is more natural.

[0031] Further, the width of the center portion 21 is greater than or equal to the width of the sub-peripheral portion.

[0032] In some implementations, the width of the center portion 21 is equal to the width of the peripheral portion 22. The center portion 21 and the peripheral portion 22 are connected in series, so when the width of the center portion 21 is equal to the width of the peripheral portion 22, the resistance of the center portion 21 is equal to the resistance of the peripheral portion 22, so that the Joule heat generated by the center portion 21 is equal to the Joule heat generated by the peripheral portion 22. This can prevent the temperature of the inner ring of the heating portion from being too high and the temperature of the outer ring of the heating portion from being too low, and can prevent local overheating and play a temperature regulating role.

[0033] In some implementations, the width of the center portion 21 is greater than the width of the peripheral portion 22. The center portion 21 and the peripheral portion 22 are connected in series, so when the width of the center portion 21 is greater than the width of the peripheral portion 22, the resistance of the center portion 21 is greater than the resistance of the peripheral portion 22, so that the Joule heat generated by the center portion 21 is less than the Joule heat generated by the peripheral portion 22. The center portion 21 is located at the inner ring of the heating portion, and the peripheral portion 22 is located at the outer ring of the heating portion. In actual applications, heat conduction from the middle to the periphery is slow, so when the center portion 21 in the middle generates less Joule heat, the temperature of the center portion 21 in the middle and the two sub-peripheral portions on the sides can be almost the same, so that the overall temperature of the heating portion is uniform, and the entire atomization process has a good temperature uniformity effect.

[0034] Further, in some embodiments, the thermal conductivity coefficient of the substrate 1 is greater than 0.1 W / (m•K), and the thickness of the substrate 1 is 0.3-1 mm.

[0035] Specifically, the thermal conductivity coefficient of the base body 1 can be 0.3, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10 W / (m•K), etc. The thermal conductivity coefficient of the base body 1 is high, so that the base body 1 can have good heat conduction performance, so that the heat generated by the heating layer 2 located on one side of the base body 1 in the axial direction can be quickly conducted to the atomization medium located on the other side of the base body 1, which is beneficial to the rapid melting of the high-viscosity atomization medium and improves the flowability. In addition, the thickness of the base body 1 can be 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1 mm, etc. By setting the thickness of the base body 1 to be thin, the heat conduction path can be shortened, the melting rate of the atomization medium is further improved, and the flowability of the high-viscosity atomization medium is further improved. At the same time, it can also ensure that the three-point bending strength of the base body 1 is greater than 10 N, so as to prevent the heating layer 2 from being deformed or damaged.

[0036] Further, in some embodiments, the atomization core is provided with a plurality of liquid passing holes 3 penetrating through the base body 1 on both sides in the axial direction, and at least part of the liquid passing holes 3 are distributed along the extension path of the central part 21 and / or the peripheral part 22.

[0037] Specifically, the atomization core is provided with a plurality of liquid passing holes 3, and the liquid passing holes 3 penetrate through the base body 1 on both sides in the axial direction, so that the atomization medium can flow from one side of the base body 1 to the other side of the base body 1 through the liquid passing holes 3 on the atomization core. Compared with the traditional ceramic atomization core with complex pores and large tortuosity, the heating part can heat the atomization medium more timely according to the embodiment of the utility model. Moreover, the liquid passing holes 3 are distributed along the extension path of the central part 21 and / or the peripheral part 22, so that the heat generated by the central part 21 and / or the peripheral part 22 can be not only conducted through the base body 1, but also directly transmitted to the atomization medium from the liquid passing holes 3, which is beneficial to the rapid melting of the high-viscosity atomization medium, so as to improve the flowability of the atomization medium, and ensure sufficient supply of the high-viscosity atomization medium and improve the atomization efficiency.

[0038] Further, in some embodiments, the liquid passing holes 3 are parallel to the axial direction of the base body 1, and / or the liquid passing holes 3 have a first preset angle with the axial direction of the base body 1.

[0039] Specifically, taking the axial direction of the base body 1 as the vertical direction, the liquid passing holes 3 can be vertical holes or inclined holes. Since the liquid passing holes 3 penetrate through the base body 1 on both sides in the axial direction, the atomization medium can flow from one side of the base body 1 to the other side of the base body 1 through the liquid passing holes 3 and be heated by the heating layer 2. The liquid passing holes 3 are provided as vertical holes, which can further improve the flowability of the atomization medium. The liquid passing holes 3 are provided as inclined holes, which can also make the atomization medium better contact with the liquid passing holes 3, so that the atomization medium can better contact with the atomization core, and also can prevent liquid leakage to a certain extent.

[0040] In addition, the liquid passing hole 3 can be equal in flow area. The liquid passing hole 3 can be processed by machining, optical processing, etching or the like. The size, shape, and distance between adjacent holes and the distance between the hole edges of the liquid passing hole 3 can be adjusted according to actual conditions. In addition, the first preset angle can be adjusted according to actual needs, such as 10°, 30°, 45°, etc.

[0041] Further, in some embodiments, the base body 1 includes a first region covered by the heating layer 2, and the liquid passing hole 3 includes a first through hole formed in the first region and a second through hole formed in the heating portion and arranged in alignment with the first through hole.

[0042] Specifically, the portion of the base body 1 covered by the heating layer 2 is the first region, the second through hole is formed in the heating portion, and the first through hole is formed in the first region of the base body 1 corresponding to the position of the second through hole, so that the first through hole and the second through hole combine to form the liquid passing hole 3. In addition, the angle relationship between the first through hole and the axial direction of the base body 1 is the same as the angle relationship between the second through hole and the axial direction of the base body 1, so that the first through hole and the second through hole are through, so that the flow of the atomization medium in the liquid passing hole 3 remains straight, reducing the flow path of the atomization medium in the liquid passing hole 3, and ensuring smooth flow of the atomization medium. In addition, the center portion 21 and the peripheral portion 22 of the heating portion can both be provided with the second through hole. By forming the second through hole in the heating portion, the atomization medium can more fully contact the heating portion, so that the atomization medium can be fully heated, improving the atomization effect.

[0043] Further, the base body 1 can be an insulating material; or the base body 1 can be a conductor, and an insulating layer can be plated on the first region of the base body 1, i.e. the connecting surface of the base body 1 and the heating layer 2, to avoid short circuit of the heating layer 2. In addition, the heating layer 2 can be a plated film heating layer 2. The plated film heating layer 2 has a high resistivity, preferably the resistivity of the plated film heating layer 2 is greater than 1e-6 Ω·m, and preferably the TCR (temperature coefficient of resistance) of the plated film heating layer 2 is greater than 0.001 / ℃, so that the heating layer 2 can be used for temperature control.

[0044] Further, in some embodiments, the base body 1 further includes a second region connected to the first region, and the liquid passing hole 3 includes a plurality of third through holes 31 formed in the second region, the plurality of third through holes 31 being adjacent to the heating portion and being distributed along an extension path parallel to the heating portion.

[0045] Specifically, the part of the base body 1 not covered by the heat generating layer 2 is the second area, that is, the first area and the second area combine to form the base body 1. Among the plurality of liquid passing holes 3, in addition to the liquid passing hole 3 combined by the first through hole and the second through hole, the liquid passing hole 3 formed by the third through hole 31 can also be included. The third through hole 31 is provided in the second area, and the plurality of third through holes 31 are close to the circumferential side of the heat generating part and are distributed along the extension path parallel to the heat generating part, so that the atomization medium flowing through the third through hole 31 from the side of the base body 1 away from the heat generating layer 2 to the side of the base body 1 provided with the heat generating layer 2 can also be heated by the heat generating part in time, thereby improving the atomization effect.

[0046] Further, in some embodiments, the pore diameter of the liquid passing hole 3 is 0.05mm~0.2mm.

[0047] Specifically, the pore diameter of the liquid passing hole 3 can be 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.2mm, etc. By setting the pore diameter of the liquid passing hole 3, the liquid passing hole 3 can maintain a certain capillary suction, so that the atomization medium can be prevented from leaking out of the liquid passing hole 3, and the atomization core can be ensured not to leak liquid.

[0048] Further, the utility model discloses a kind of atomizers, including oil cup, and atomization core, oil cup stores atomization medium, atomization core is assembled with oil cup connection, and the side of base body 1 away from heat generating layer 2 contacts atomization medium, the axial direction of atomization core is parallel with the axial direction of oil cup, or, the axial direction of atomization core and the axial direction of oil cup exist second preset angle.

[0049] In the utility model embodiment, the atomizer includes an oil cup and an atomization core, and the atomization core is assembled with the oil cup. The side of the base body 1 away from the heat generating layer 2 contacts the atomization medium. The atomization core is provided with a plurality of liquid passing holes 3, and the liquid passing holes 3 penetrate through both sides of the base body 1 along the axial direction. Therefore, the atomization medium can flow from one side of the base body 1 to the other side of the base body 1 through the liquid passing holes 3 on the atomization core, and the heat generating part can heat the atomization medium in time. In addition, the heat generating part of the heat generating layer 2 includes a center part 21 and a peripheral part 22 connected in series, and the peripheral part 22 surrounds the outer circumferential side of the center part 21, so that the heat of the heat generating part is distributed along the radial direction, and the heat of the heat generating part can be avoided to be too concentrated. Furthermore, the liquid passing holes 3 are distributed along the extension path of the center part 21 and / or the peripheral part 22, so that the heat generated by the center part 21 and / or the peripheral part 22 can be not only conducted through the base body 1, but also directly transmitted to the atomization medium through the liquid passing holes 3, which is beneficial to the rapid melting of the atomization medium with high viscosity, thereby improving the flowability of the atomization medium, ensuring sufficient supply of the atomization medium with high viscosity, and improving the atomization efficiency.

[0050] In some embodiments, the axial direction of the atomizing core (i.e. the axial direction of the base body 1) is parallel to the axial direction of the oil cup, so when the oil cup is vertically placed, the flow direction of the atomizing medium flowing from the oil cup to the atomizing core is vertical, and the liquid passing hole 3 can be a vertical hole, which can further improve the flowability of the atomizing medium. It can be understood that, in the embodiments of the present application, the heating part can accelerate the rapid melting of the atomizing medium due to the arrangement of the base body 1, the heating layer 2 and the liquid passing hole 3, so the liquid passing hole 3 is arranged as an inclined hole, which can also ensure that the atomizing medium has good flowability; and the inclined hole can make the atomizing medium better contact with the liquid passing hole 3, so that the atomizing medium can better contact with the base body 1 and the heating layer 2, improve the atomization effect of the atomizing medium, and also prevent liquid leakage to some extent.

[0051] In some embodiments, the axial direction of the atomizing core (i.e. the axial direction of the base body 1) has a second angle relationship with the axial direction of the oil cup. For example, the second predetermined angle relationship can be 10°, 30°, 60°, 90°, etc. The liquid passing hole 3 can be a vertical hole or an inclined hole. It can be adjusted according to actual needs, which can ensure that the atomizing medium has good flowability while making the atomizing medium fully contact with the liquid passing hole 3.

[0052] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0053] The above is the description of the technical scheme provided by the present application. For those skilled in the art, according to the idea of the embodiments of the present application, there will be changes in specific implementation and application range, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. An atomizing core, characterized in that, The atomizing core comprises a base and a heating layer; One side of the base along the axial direction is used to contact with the atomizing medium, and the other side is provided with the heating layer; The heating layer has a first electrode, a second electrode, and a heating part connected between the first electrode and the second electrode, the heating part comprises a peripheral part and a central part connected in series, the peripheral part has a first arc structure, the central part has a second arc structure, and the peripheral part surrounds the outer peripheral side of the central part.

2. The atomizer core of claim 1, wherein, The peripheral part comprises two sub-peripheral parts located on both sides of the central part respectively, and the central part comprises a first end part and a second end part, wherein two ends of one of the sub-peripheral parts are connected to the first electrode and the first end part respectively, and two ends of the other sub-peripheral part are connected to the second electrode and the second end part respectively.

3. The atomizer core of claim 1, wherein, The first arc structure and the second arc structure are concentrically arranged.

4. The atomizer core of claim 2, wherein, The width dimension of the central part is greater than or equal to the width dimension of the sub-peripheral part.

5. The atomizer core of claim 1, wherein, The thermal conductivity coefficient of the base is greater than 0.1 W / (m·K), and the thickness of the base is 0.3-1 mm.

6. The atomizer core of claim 1, wherein, The atomizing core is provided with a plurality of liquid passing holes penetrating through both sides of the base along the axial direction, and at least part of the liquid passing holes are distributed along the extension path of the central part and / or the peripheral part.

7. The atomizer core of claim 6, wherein, The liquid passing holes are parallel to the axial direction of the base, and / or the liquid passing holes have a first preset angle with the axial direction of the base.

8. The atomizer core of claim 6, wherein, The base comprises a first area covered by the heating layer, and the liquid passing holes comprise a first through hole provided in the first area and a second through hole provided in the heating part and aligned with the first through hole.

9. The atomizer core of claim 8, wherein, The base further comprises a second area connected to the first area, and the liquid passing holes comprise a plurality of third through holes provided in the second area, and the third through holes are adjacent to the heating part and distributed along the extension path parallel to the heating part.

10. An atomiser characterised in that, The atomizing core comprises an oil cup, and the atomizing core is assembled with the oil cup, and one side of the base away from the heating layer contacts the atomizing medium, and the axial direction of the atomizing core is parallel to the axial direction of the oil cup, or the axial direction of the atomizing core has a second preset angle with the axial direction of the oil cup.

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