An oil guide body, an atomizer and an electronic atomization device

Abstract

The application provides an oil guide body, an atomizer and an electronic atomization device. The electronic atomization device comprises the atomizer. The atomizer comprises an oil cup and an atomization assembly. The atomization assembly comprises a bottom assembly, a top assembly and an atomization core. The bottom assembly comprises a base. The atomization core is clamped and positioned between the base and the top assembly. The top assembly is provided with a liquid inlet channel. The atomization core comprises a planar heating wire and an oil guide body which are stacked. The oil guide body is assembled with the planar heating wire. The oil guide body comprises a first side surface and a second side surface which are opposite and parallel. The oil guide body comprises at least two oil guide layers which are stacked. The temperature resistance and moisture retention of the oil guide layer close to the planar heating wire are stronger than those of the oil guide layer far from the planar heating wire. The oil guide rate and the saturated oil absorption per unit volume of the oil guide layer far from the planar heating wire are greater than those of the oil guide layer close to the planar heating wire. The oil guide body can have sufficient temperature resistance and is not easy to be burnt out under the condition of ensuring the oil guide efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of atomization devices, and particularly relates to an oil guide body, an atomizer and an electronic atomization device. BACKGROUND

[0002] The atomization device is used for atomizing liquid medium to form aerosol, and mainly comprises an oil cup for storing atomized liquid and an atomization assembly assembled on the oil cup. The atomization assembly usually comprises an oil guide body and a heating wire assembled on one side of the oil guide body. The oil guide body is used for guiding the atomized liquid in the oil cup to the heating wire. The atomized liquid is atomized by the heating wire to form aerosol. However, in the related art, the structure and material of the oil guide body are relatively single, and the oil guiding efficiency and heat resistance cannot be considered at the same time. The oil guide body is easily dry-burned by the heating wire, resulting in a burnt wick and affecting the quality of the atomization device. SUMMARY

[0003] The application aims to provide an oil guide body, an atomizer and an electronic atomization device, and solve the problem that the oil guide body in the related art cannot consider the oil guiding efficiency and heat resistance at the same time, is easily dry-burned by the heating wire, results in a burnt wick and affects the quality of the atomization device.

[0004] To solve the above technical problem, the application is implemented as follows. An oil guide body is provided, which is used for being assembled with a planar heating wire. The oil guide body has a first side surface and a second side surface which are opposite and parallel. The oil guide body comprises at least two oil guide layers which are stacked in a thickness direction. The heat resistance and moisture retention of an oil guide layer close to the planar heating wire are stronger than those of an oil guide layer far from the planar heating wire. The oil guiding rate of the oil guide layer far from the planar heating wire is faster than that of the oil guide layer close to the planar heating wire. The saturated oil absorption per unit volume of the oil guide layer far from the planar heating wire is greater than that of the oil guide layer close to the planar heating wire.

[0005] Optionally, the oil guide body comprises a first oil guide layer and a second oil guide layer stacked on one side of the first oil guide layer. The first oil guide layer and the second oil guide layer are both two layers of spunlace non-woven fabric.

[0006] Optionally, the first oil guide layer is made of at least one of viscose fiber, strong fiber, modal fiber, Tencel, Lyocell fiber, Lenzing fiber, Asahi Kasei fiber, cuprammonium fiber, activated carbon, bamboo charcoal. The second oil guide layer is made of at least one of cotton fiber, kapok fiber, hemp fiber, bamboo fiber, lotus fiber, tea fiber, aramid 1313, aramid 1414 and polyimide.

[0007] Optionally, the oil guide body further comprises a third oil guide layer stacked on the side of the second oil guide layer away from the first oil guide layer, the first oil guide layer and the third oil guide layer are symmetrically arranged relative to the second oil guide layer, and the third oil guide layer is made of the same material as the first oil guide layer.

[0008] Optionally, the compression percentage of the oil guide body in the thickness direction is 5%-70%, the thickness direction being the normal direction of the first side face, wherein the compression percentage=(thickness of the oil guide body before compression-thickness of the oil guide body after compression) / thickness of the oil guide body before compression.

[0009] Optionally, the compression percentage is 20%-30%.

[0010] Optionally, the oil guide body comprises at least one fluffy area and an edge area surrounding each fluffy area, and the compression percentage of the edge area is less than that of the fluffy area.

[0011] Optionally, the oil guide body comprises at least two oil guide parts and a connecting part connected between the oil guide parts, the oil guide part comprises at least one fluffy area, the connecting part is a fluffy area, and the connecting part is integrated with the fluffy area in each oil guide part.

[0012] Optionally, a gap is formed between the connecting part and the adjacent oil guide part, and the oil guide body has a symmetrical structure.

[0013] Optionally, the thickness of the oil guide body is within 0.5-2.0 mm.

[0014] Optionally, the material lines of the oil guide layer extend along the longitudinal direction.

[0015] Optionally, the surface of the oil guide layer is provided with surface lines extending along the longitudinal direction.

[0016] Optionally, the oil guide body swells and deforms when absorbing oil, and the saturated oil absorption of the oil guide body is 600%-1000%, wherein the saturated oil absorption of the oil guide body=(mass of the oil guide body after saturated oil absorption-mass of the oil guide body before oil absorption) / mass of the oil guide body before oil absorption.

[0017] Optionally, the saturated oil absorption is within 700%-800%.

[0018] Optionally, the oil guide body is pressed by the planar heating wire to form a 0.01-0.2 mm indentation when absorbing oil and swelling.

[0019] Optionally, a kind of atomizer is provided, comprising oil cup and atomization component, the atomization component includes bottom component, top component being installed to the top of bottom component and atomization core;The top component is installed to the oil cup and is sealedly connected with the inner wall of the oil cup;The bottom component includes base being installed to one end of the oil cup, and the atomization core is clamped between the base and the top component;The top component is provided with liquid inlet channel for providing atomization liquid in the oil cup to the atomization core;The atomization core includes stacked plane heating wire and the oil guide body as described in any one of the above, and the oil guide body is located between the top component and plane heating wire and is connected with the liquid inlet channel.

[0020] Optionally, the oil guide body is compressed 0-0.2mm by the base and the top component.

[0021] Optionally, an electronic atomization device is provided, comprising battery rod and the atomizer as described above, and the atomizer and the battery rod are inserted and matched.

[0022] Compared with the prior art, the oil guide body has the following beneficial effects in the present application:

[0023] After assembling the oil guide body and plane heating wire, the temperature resistance and moisture retention of the oil guide layer close to the assembly side of plane heating wire are stronger than those of the oil guide layer far from the assembly side of plane heating wire, so that the plane heating wire is easily soaked in atomization oil and is less likely to dry out. In addition, the oil guide layer close to the assembly side of plane heating wire has a faster oil guiding rate and a larger unit volume saturated oil absorption than the oil guide layer far from the assembly side of plane heating wire, so that the atomization liquid in the oil cup can be quickly conducted to the plane heating wire, the oil supply is ensured, and the risk of core burning is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is a three-dimensional exploded structural schematic diagram of the atomizer applied with the oil guide body in the embodiments of the present application;

[0026] Figure 2 is a front view of the atomization component in the atomizer in the embodiments of the present application;

[0027] Figure 3 In the embodiments of the present invention, the atomizing component is in Figure 2 A cross-sectional view along the AA direction;

[0028] Figure 4 This is a top view of the oil guide body in an embodiment of the present invention;

[0029] Figure 5 This is a front view of the oil guide body in an embodiment of the present invention;

[0030] Figure 6 This is an exploded structural diagram of the oil guide body in an embodiment of the present invention.

[0031] In the accompanying drawings, the reference numerals represent: 1, oil cup; 2, atomizing assembly; 21, bottom assembly; 22, top assembly; 23, atomizing core; 211, base; 221, bracket; 222, silicone sealant; 2211, liquid inlet channel; 231, planar heating wire; 232, oil guide body; S1, first side surface; S2, second side surface; 2321, first oil guide layer; 2322, second oil guide layer; 2323, third oil guide layer; 232a, oil guide portion; 232b, connecting portion; 232c, notch. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," and "radial," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0034] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of the technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise explicitly and specifically limited.

[0035] The present embodiment provides an electronic atomization device (not shown), comprising a battery rod and an atomizer, the atomizer and the battery rod are plug-in matched.

[0036] In combination with Figures 1-3 The atomizer comprises an oil cup 1 and an atomization assembly 2, the atomization assembly 2 comprises a bottom assembly 21, a top assembly 22 mounted to the top end of the bottom assembly 21, and an atomization core 23; the top assembly 22 is mounted into the oil cup 1 and is in sealing connection with the inner wall of the oil cup 1; the bottom assembly 21 comprises a base 211 mounted to one end of the oil cup 1, and the atomization core 23 is clamped and positioned between the base 211 and the top assembly 22; the top assembly 22 is provided with a liquid inlet channel 2211 for providing the atomization liquid in the oil cup 1 to the atomization core 23; the atomization core 23 comprises a planar heating wire 231 and an oil guide body 232 stacked together, the oil guide body 232 is located between the top assembly 22 and the planar heating wire 231 and is connected with the liquid inlet channel 2211.

[0037] Further in combination with Figures 3-6 The oil guide body 232 is assembled with the planar heating wire 231, the oil guide body 232 comprises a first side surface S1 and a second side surface S2 arranged oppositely and parallelly, the oil guide body 232 comprises at least two oil guide layers stacked in a thickness direction, the thickness direction is the normal direction of the first side surface S1, the temperature resistance and moisture retention capacity of the oil guide layer close to the assembly side of the planar heating wire 231 are stronger than those of the oil guide layer away from the assembly side of the planar heating wire 231, the oil guide rate of the oil guide layer away from the assembly side of the planar heating wire 231 is faster than that of the oil guide layer close to the assembly side of the planar heating wire 231, and the unit volume saturated oil absorption of the oil guide layer away from the assembly side of the planar heating wire 231 is greater than that of the oil guide layer close to the assembly side of the planar heating wire 231.

[0038] After the oil guide body 232 and the planar heating wire 231 are assembled, because the moisture retention and temperature resistance of the oil guide layer close to the assembly side of the planar heating wire 231 are stronger than those of the oil guide layer far from the assembly side of the planar heating wire 231, the planar heating wire 231 is easy to soak in the atomized oil and is less likely to dry out. In addition, because the oil guide layer close to the assembly side of the planar heating wire 231 is less likely to paste the core, the oil guide layer far from the assembly side of the planar heating wire 231 has a faster oil guide rate and a larger saturated oil absorption per unit volume than the oil guide layer close to the assembly side of the planar heating wire 231, so that the atomized liquid in the oil cup 1 can be conducted to the planar heating wire 231 faster to ensure the oil supply and further reduce the risk of pasting the core.

[0039] Specifically, in the present embodiment, the base 211 has an air inlet hole, the base 211 includes a support portion, the middle portion of the support portion has an opening in communication with the air inlet hole, the bottom assembly 21 further includes an electrode (not shown) penetrating the support portion, the planar heating wire 231 includes a heating portion and a conductive portion extending along the transverse ends of the heating portion, the conductive portion is carried on the top surface of the support portion and electrically connected to the electrode, the heating portion is suspended at the opening of the support portion, the oil guide body 232 is assembled on the top surface of the planar heating wire 231, the top assembly 22 includes a bracket 221 sleeved on the base 211 and a silica gel sealing member 222 sealingly connected between the bracket 221 and the oil cup 1, the liquid inlet channel 2211 is arranged on the bracket 221 and the sealing silica gel member, the bracket 221 and the base 211 jointly clamp and fix the oil guide body 232, and the oil guide body 232 covers the liquid inlet channel 2211 of the bracket 221, the bracket 221 and the base 211 form an atomization cavity, and the oil cup 1 has a guide-out channel in communication with the atomization cavity.

[0040] Specifically, the oil guide body 232 includes a first oil guide layer 2321 and a second oil guide layer 2322 stacked on one side of the first oil guide layer 2321, and the first oil guide layer 2321 and the second oil guide layer 2322 are both two layers of spunlace non-woven fabric.

[0041] Preferably, the first oil guide layer 2321 can be made of at least one of viscose fibers, rich strong fibers, modal fibers, Tencel, Lyocell fibers, ramie fibers, Asahi Kasei fibers, cuprammonium fibers, Kozo carbon, bamboo carbon, etc., and the second oil guide layer 2322 can be made of at least one of cotton fibers, kapok fibers, hemp fibers, bamboo fibers, lotus fibers, tea fibers, aramid 1313, aramid 1414, polyimide, etc. In this embodiment, when assembling, the first oil guide layer 2321 and the planar heating wire 231 are assembled by the planar and planar lamination method, the second oil guide layer 2322 is located on the side of the first oil guide layer 2321 away from the planar heating wire 231, and the edge of the second oil guide layer 2322 is tightly pressed by the support 221. It should be understood that the temperature resistance and moisture retention of the first oil guide layer 2321 are stronger than those of the second oil guide layer 2322, the oil guiding rate of the second oil guide layer 2322 is faster than that of the first oil guide layer 2321, and the unit volume saturated oil absorption of the second oil guide layer 2322 is greater than that of the first oil guide layer 2321. It can be understood that by setting the materials of the first oil guide layer 2321 and the second oil guide layer 2322, the oil guide body 232 can have good heat resistance and good oil guiding capacity to ensure the oil supply and improve the smoking experience.

[0042] Further, the oil guide body 232 can further include a third oil guide layer 2323 stacked on the side of the second oil guide layer 2322 away from the first oil guide layer 2321, the first oil guide layer 2321 and the third oil guide layer 2323 are symmetrically arranged relative to the second oil guide layer 2322, and the material of the third oil guide layer 2323 is the same as that of the first oil guide layer 2321. Preferably, the first oil guide layer 2321 and the third oil guide layer 2323 can have the same properties, i.e., the oil guide body 232 has no front and back, and when assembling the oil guide body 232 and the planar heating wire 231, the first oil guide layer 2321 and the third oil guide layer 2323 can be assembled with the planar heating wire 231 by the planar and planar lamination method. Therefore, the oil guide body 232 does not need to be prevented from being assembled, which is more conducive to the automatic assembly of the oil guide body 232. For example, the first oil guide layer 2321 and the third oil guide layer 2323 can both use two layers of linen non-woven fabric, and the second oil guide layer 2322 located in the middle can use two layers of viscose non-woven fabric, which is conducive to automatic production and has little effect on taste.

[0043] Further, the total thickness of the oil guide body 232 is within 0.5-2.0mm, preferably 1.2-1.6mm, and the single-layer non-woven fabric has a grammage of 40-120g / m 2 , preferably 60-75g / m 2 .

[0044] In some embodiments, the oil guide 232 can be integrally formed, and the oil guide 232 can be made of at least one of viscose fiber, modal fiber, Tencel, Lyocell, Ramie fiber, bamboo fiber, copper ammonia fiber, Kozo fiber, cotton fiber, kapok fiber, hemp fiber, bamboo fiber, lotus fiber, tea fiber, aramid 1313, aramid 1414, polyimide, etc.

[0045] In some embodiments, the oil guide 232 can also include more than three oil guide layers, for example, four, five, six, or the like, and each oil guide layer can include one, two, or three layers of spunlace nonwoven fabric, and the structure is not limited here.

[0046] In the present embodiment, the compression percentage of the oil guide 232 in the thickness direction is greater than 5% and less than 70%, and the thickness direction is the normal direction of the first side S1. The oil guide 232 can be deformed and expanded when absorbing oil, wherein the compression percentage = (the thickness of the oil guide 232 before compression - the thickness of the oil guide 232 after compression) / the thickness of the oil guide 232 before compression.

[0047] The oil guide 232 and the planar heating wire 231 are assembled by planar and planar lamination, that is, the oil guide 232 does not cause excessive pressure to the planar heating wire 231 during assembly. Therefore, the planar heating wire 231 will not be excessively deformed due to the extrusion of the oil guide 232 during assembly, thereby causing uneven gaps between the two. Moreover, after assembly is completed, the oil guide 232 can slightly deform and expand after absorbing the atomized liquid. The side of the oil guide 232 close to the planar heating wire 231 will bulge and contact the planar heating wire 231. This can eliminate the height direction error, so that the oil guide 232 and the planar heating wire 231 are closely attached during operation, and the phenomenon of local dry burning and core burning does not occur, thereby improving the quality of the electronic atomizer.

[0048] Preferably, the compression percentage of the oil guide 232 is between 20% and 30%, for example, 23%, 25%, 27%, etc. Using such a compression percentage parameter can make the oil guide 232 more convenient and fast during molding, on the other hand, after the oil guide 232 and the planar heating wire 231 are clamped and assembled by the base 211 and the bracket 221, the oil guide 232 has a more appropriate expansion amount after absorbing oil, which can ensure the close fit between the oil guide 232 and the planar heating wire 231 after absorbing oil, and can also make the extrusion force of the oil guide 232 on the planar heating wire 231 moderate, so as not to cause excessive deformation of the planar heating wire 231, thereby improving the reliability of the atomizing core 23.

[0049] Further, the oil guide 232 comprises at least one fluffy area and an edge area surrounding the fluffy area, and the compression percentage of the edge area is less than that of the fluffy area. The edge area of the oil guide 232 is compressed more tightly, which can achieve better oil control and prevent liquid leakage, and the fluffy area can be used for transmission of the atomized liquid, has a higher oil guide rate, and is more conducive to the transmission of the atomized liquid through the oil guide 232 to the planar heating wire 231, thereby ensuring the oil supply amount to ensure the smoking experience.

[0050] In the embodiment, the oil guide 232 comprises at least two oil guide parts 232a and a connecting part 232b connected between the oil guide parts 232a, the oil guide part 232a comprises at least one fluffy area, the connecting part 232b is a fluffy area, and the connecting part 232b is integrated with the fluffy area in each oil guide part 232a. Specifically, the bracket 221 is provided with two symmetrical liquid inlet channels 2211, the oil guide 232 is a symmetrical structure, that is, the oil guide 232 comprises two symmetrical oil guide parts 232a and a connecting part 232b connected between the oil guide parts 232a, when the oil guide 232 is assembled, the two oil guide parts 232a are respectively arranged corresponding to the two liquid inlet channels 2211, and the edge area of the oil guide part 232a is clamped and fixed between the base 211 and the bracket 221. Since the edge area is compressed more tightly, the oil control performance is better, and the fluffy area of the oil guide part 232a is opposite to the liquid inlet channel 2211, and the connecting part 232b is also a fluffy area, and the heating part of the planar heating wire 231 is attached to one side of the connecting part 232b, so it is more conducive to the conduction of the atomized liquid from both ends to the middle, thereby ensuring the oil supply amount of the heating part.

[0051] Preferably, the oil guide 232 is compressed 0-0.2 mm by the base 211 and the top assembly 22. That is, there can be a compression degree between the oil guide 232 and the bracket 221, and after the oil guide 232 absorbs oil and expands, the oil guide 232 can be clamped and fixed stably by the base 211 and the top assembly 22, which can ensure that the atomizer does not fall off from the base 211 and the top assembly 22 due to vibration during transportation and automatic assembly.

[0052] Further, a gap 232c is formed between the connecting portion 232b and the adjacent oil guiding portion 232a. Specifically, the oil guiding body 232 has two gaps 232c, which are symmetrically arranged on opposite sides of the oil guiding body 232. The arrangement of the two gaps 232c facilitates the conduction of aerosol therethrough to the guiding channel. Preferably, the ratio of the size h3 of the gap 232c in the width direction of the oil guiding body 232 to the width size h1 of the oil guiding body 232 can be 10%-20%, and the ratio of the size h4 of the gap 232c in the length direction of the oil guiding body 232 to the length size h2 of the oil guiding body 232 can be 20%-45%. The adoption of such ratio can ensure the smoothness of the conduction of aerosol and the sufficient oil guiding structure of the middle part of the oil guiding body 232, thereby improving the smoking experience.

[0053] In some embodiments, the oil guiding body 232 can also include one connecting portion 232b and three, four, five or more oil guiding portions 232a connected to the outer side of the connecting portion 232b. The support 221 is provided with one liquid inlet channel 2211 corresponding to each oil guiding portion 232a. The connecting portion 232b is a fluffy area, and the middle part of each oil guiding portion 232a can also be arranged as a fluffy area. The heating portion of the planar heating wire 231 is arranged on one side of the connecting portion 232b. Therefore, the atomized liquid can be conducted to the connecting portion 232b through each oil guiding portion 232a for heating and atomization by the planar heating wire 231.

[0054] Further, the compression percentage of the fluffy area can gradually decrease from the center to the outside, that is, the oil guiding performance of the middle part of the fluffy area is better than that of the outer part. Therefore, the middle part of the fluffy area can be used to ensure the oil guiding performance, and the outer part of the fluffy area is relatively poor in oil guiding performance, which is more conducive to oil control and leakage prevention. In addition, since the compression percentage of the fluffy area gradually changes, the difference in oil holding capacity and oil guiding rate of the adjacent regions of the oil guiding body 232 can be avoided, thereby ensuring the uniformity of various performances of the oil guiding body 232.

[0055] Further, the ratio of the compression percentage of the fluffy area to the compression percentage of the edge area is within 1.5-10, preferably 2-3.

[0056] Further, when the oil guiding body 232 is expanded by absorbing oil and is pressed by the planar heating wire 231, a pressure mark with a size of 0.01-0.2 mm is formed. Therefore, the oil guiding body 232 can slightly protrude from the contact surface of the planar heating wire 231 after absorbing oil. The surface of the heating wire opposite to the oil guiding body 232 and the adjacent surface of the heating wire can contact the oil guiding body 232, so as to more quickly output the atomized liquid to the three surfaces of the heating wire and ensure the atomization effect of the heating wire on the three surfaces.

[0057] Further, the saturated oil absorption of the oil guide body 232 can be 600% to 1000%, wherein the saturated oil absorption=(mass of the oil guide body 232 after saturated oil absorption-mass of the oil guide body 232 before oil absorption) / mass of the oil guide body 232 before oil absorption. Preferably, the saturated oil absorption is within 700%-800%, such as 725%, 750%, 775%, etc. The parameter setting of the foregoing saturated oil absorption can make the oil guide body 232 have sufficient oil after oil absorption, and ensure good atomization effect.

[0058] In the embodiment, the material lines of the oil guide body 232 extend along the longitudinal direction, and the first side surface S1 and / or the second side surface S2 are provided with surface lines extending along the longitudinal direction.

[0059] When the oil guide body 232 is assembled into the atomizer, it can be assembled in close contact with the planar heating wire 231. During use of the atomizer, since the extension direction of the material of the oil guide body 232 is in the longitudinal direction, i.e., the atomized liquid can conduct along the extension direction of the material, the conduction efficiency of the atomized liquid is improved, which is conducive to the conduction of the atomized liquid to the heat concentration area of the planar heating wire 231, ensures sufficient oil supply, is not easy to burn the wick, and is beneficial to the smoking experience. In addition, the surface of the oil guide body 232 is provided with surface lines in the longitudinal direction, so that the surface of the oil guide body 232 has a concave-convex structure, and is not a complete plane. When the oil guide body 232 is in contact with the planar heating wire 231, it has a larger contact area, a better close contact effect, and a better atomization effect.

[0060] In the embodiment, the surface of each oil guide layer is provided with surface lines extending along the longitudinal direction thereof. The arrangement of the surface lines can improve the close contact degree between adjacent oil guide layers, thereby adjusting the oil guiding efficiency at the contact surface of adjacent oil guide layers. Specifically, the surface lines are preferably linear, and adjacent surface lines of the same oil guide layer form gaps, the surface lines of the oil guide body 232 are embedded in the gaps of the adjacent oil guide body 232, each surface line is arranged in the width direction of the oil guide layer, and the widths of the gaps between adjacent surface lines are preferably equal, so that the oil guiding efficiency can be improved while ensuring the uniformity of oil guiding.

[0061] In some embodiments, the width of the gap between the surface lines near the middle of the oil guide layer can be greater than the width of the gap between the surface lines near the edge. With such an arrangement, the oil guiding efficiency of different regions of the oil guide body 232 can be different. The heat generating part of the planar heating wire 231 is mainly located in the middle of the oil guide body 232. Therefore, by setting the width of the gap between the surface lines in the middle to be larger, the atomized liquid is more conducive to being conducted to the region of the heat generating part, thereby ensuring sufficient oil supply, not easy to burn the wick, and beneficial to the smoking experience. Of course, according to the actual position of the heat generating part of the planar heating wire 231, the width of the gap between the surface lines can be adjusted adaptively, as long as the width of the gap between the surface lines in the heat concentration area is greater than the width of the gap between the surface lines in the heat edge area.

[0062] In the above embodiments, the description of each embodiment is focused on, and the part not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0063] The above is the description of the technical solutions 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 manners and application ranges. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An oil guide body for fitting and assembling with a planar heating wire, characterized in that, The oil-conducting body has a first side and a second side arranged opposite to and parallel to each other. The oil-conducting body includes at least two oil-conducting layers stacked in the thickness direction. The oil-conducting layer closer to the planar heating wire has stronger temperature resistance and moisture retention than the oil-conducting layer farther from the planar heating wire. The oil-conducting rate of the oil-conducting layer farther from the planar heating wire is faster than that of the oil-conducting layer closer to the planar heating wire. The saturated oil absorption per unit volume of the oil-conducting layer farther from the planar heating wire is greater than that of the oil-conducting layer closer to the planar heating wire. The oil guide body includes a first oil guide layer, a second oil guide layer stacked on one side of the first oil guide layer, and a third oil guide layer stacked on the side of the second oil guide layer opposite to the first oil guide layer. The first oil guide layer and the second oil guide layer are both two-layer spunlace nonwoven fabrics. The first oil guide layer and the third oil guide layer are symmetrically arranged with respect to the second oil guide layer. The material of the third oil guide layer is the same as that of the first oil guide layer and has the same properties.

2. The oil guide body according to claim 1, characterized in that, The first oil-conducting layer is made of at least one of viscose fiber, high-tenacity fiber, modal fiber, Tencel, lyocell fiber, Lenzing fiber, Asahi Kasei fiber, cupro fiber, binchotan charcoal, and bamboo charcoal. The second oil-conducting layer is made of at least one of cotton fiber, kapok fiber, hemp fiber, bamboo fiber, lotus fiber, tea fiber, aramid 1313, aramid 1414, and polyimide.

3. The oil guide body according to claim 1, characterized in that, The compression percentage of the oil guide body in the thickness direction is between 5% and 70%, and the thickness direction is the normal direction of the first side surface. The compression percentage is calculated as: (thickness of the oil guide body before compression - thickness of the oil guide body after compression) / thickness of the oil guide body before compression.

4. The oil guide body according to claim 3, characterized in that, The compression percentage is between 20% and 30%.

5. The oil guide body according to claim 3, characterized in that, The oil guide includes at least one fluffy region and an edge region surrounding each fluffy region, wherein the compression percentage of the edge region is less than the compression percentage of the fluffy region.

6. The oil guide body according to claim 5, characterized in that, The oil guide body includes at least two oil guide portions and a connecting portion connecting each of the oil guide portions. Each oil guide portion includes at least one fluffy area. The connecting portion is a fluffy area, and the connecting portion is integrated with the fluffy area in each of the oil guide portions.

7. The oil guide body according to claim 6, characterized in that, A gap is formed between the connecting part and the adjacent oil guiding part, and the oil guiding body has a symmetrical structure.

8. The oil guide body according to claim 1, characterized in that, The thickness of the oil guide body is within 0.5-2.0 mm.

9. The oil guide body according to claim 1, characterized in that, The texture of the oil-guiding layer extends along the longitudinal direction.

10. The oil guide body according to claim 9, characterized in that, The surface of the oil-guiding layer is provided with surface textures extending along the longitudinal direction.

11. The oil guide body according to any one of claims 1-9, characterized in that, The oil guide body expands and deforms when absorbing oil, and the saturated oil absorption capacity of the oil guide body is 600% to 1000%, wherein the saturated oil absorption capacity of the oil guide body = (mass of the oil guide body after saturated oil absorption - mass of the oil guide body before oil absorption) / mass of the oil guide body before oil absorption.

12. The oil guide body according to claim 11, characterized in that, The saturated oil absorption rate is within 700%-800%.

13. The oil guide body according to claim 11, characterized in that, When the oil guide body absorbs oil and expands, it is squeezed by the planar heating wire to form an indentation of 0.01-0.2mm.

14. An atomizer, comprising an oil cup and an atomizing assembly, characterized in that, The atomizing assembly includes a bottom assembly, a top assembly mounted on top of the bottom assembly, and an atomizing core; the top assembly is mounted inside the oil cup and is sealed to the inner wall of the oil cup; the bottom assembly includes a base mounted to one end of the oil cup, and the atomizing core is clamped and positioned between the base and the top assembly; the top assembly has a liquid inlet channel for supplying the atomizing liquid in the oil cup to the atomizing core; the atomizing core includes stacked planar heating wires and an oil guide as described in any one of claims 1-13, the oil guide being located between the top assembly and the planar heating wires and connected to the liquid inlet channel.

15. The atomizer according to claim 14, characterized in that, The oil guide body is compressed by the base and the top assembly by 0-0.2mm.

16. An electronic atomizing device, characterized in that, It includes a battery rod and an atomizer as described in claim 14 or 15, wherein the atomizer and the battery rod are plugged into each other.

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