Atomizing core, atomizer and electronic atomization device

Abstract

The application discloses an atomizing core, an atomizer and an electronic atomizing device, wherein the atomizing core comprises a liquid guide body for storing and conducting atomizing liquid, an electrode and a porous conductive ceramic body which is electrically connected with the electrode, and the porous conductive ceramic body is provided with a plurality of pores which can conduct the atomizing liquid from the liquid guide body to the porous conductive ceramic body, the porous conductive ceramic body comprises a connecting part arranged in the liquid guide body and a heating part which is vertically exposed to one side of the liquid guide body in the axial direction of the atomizing core. The atomizing core disclosed by the application can solve the technical problem that the existing atomizing core is prone to dry burning when the single use time is too long.

Description

Technical Field

[0001] This invention relates to the field of electronic atomization technology, and in particular to an atomizing core, an atomizer, and an electronic atomization device. Background Technology

[0002] Electronic cigarettes are products that use an atomizer to burn e-liquid to produce vapor in order to replace traditional cigarettes. Because they are convenient to use, the flavor can be changed by mixing e-liquid, and the harm to human health is far less than that of traditional cigarettes, they have been sought after by consumers in domestic and foreign markets in recent years.

[0003] As a crucial component of e-cigarettes, the atomizer coil has always been a focus of research for those skilled in the art. Currently, atomizer coils on the market are generally manufactured by embedding a metal resistor heating element (or heating wire) into a wicking body or by using a thick-film printing process. A common drawback of this type of atomizer coil is that when the metal resistor is working, the temperature around it rises rapidly to heat the surrounding e-liquid to atomize it. The large amount of heat generated by the metal resistor creates pressure around it, which forces the e-liquid contained in the wicking body to flow away from the heating resistor. Only after the metal resistor stops working will the e-liquid replenish the parts of the wicking body that lack e-liquid (the e-liquid in these parts was atomized and consumed when the metal resistor was working). In other words, the wicking body's e-liquid intake mode is pulsed. Therefore, if the atomizer coil is used for too long in a single session, it will face the risk of running out of e-liquid and burning out.

[0004] The above content is merely the technology known to the inventor of this application and is only used to assist in understanding the technical solution of this invention. It does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to provide an atomizing core, atomizer, and electronic atomization device, aiming to solve the technical problem that existing atomizing cores are prone to running out of oil and burning out when used for too long in a single session.

[0006] To achieve the above objectives, the present invention proposes an atomizing core, which includes:

[0007] Liquid conductor, used for storing and conducting atomizing liquid;

[0008] Electrodes; and

[0009] A porous conductive ceramic body, electrically connected to the electrode, wherein the porous conductive ceramic body has a plurality of pores distributed throughout, which can conduct the atomized liquid from the conductive liquid to the porous conductive ceramic body, the porous conductive ceramic body comprising:

[0010] A connecting portion, wherein the connecting portion is disposed within the fluid-conducting portion; and

[0011] The heating element is connected to the connecting part and is vertically exposed on one side of the liquid guide in the axial direction of the atomizing core.

[0012] Furthermore, the height of the heating element along the axial direction of the atomizing core is greater than or equal to the height of the connecting element along the axial direction of the atomizing core, and the width of the heating element is greater than or equal to the width of the connecting element.

[0013] Furthermore, the surface area of ​​the heating element is greater than or equal to the surface area of ​​the connecting element.

[0014] Furthermore, the height of the heating element along the axial direction of the atomizing core is less than the height of the connecting element along the axial direction of the atomizing core, and the width of the heating element is greater than or equal to the width of the connecting element.

[0015] Furthermore, the surface area of ​​the heating element is greater than or equal to the surface area of ​​the connecting element.

[0016] Furthermore, the height of the heating element along the axial direction of the atomizing core is less than the height of the connecting element along the axial direction of the atomizing core.

[0017] Furthermore, the surface area of ​​the heating element is smaller than the surface area of ​​the connecting element.

[0018] Furthermore, the volume of the porous conductive ceramic body is less than or equal to the volume of the conductive liquid.

[0019] Furthermore, the liquid-conducting material is a porous ceramic body or oil-conducting cotton.

[0020] Furthermore, at least one power-off gap for blocking current is provided on the connecting part, and the length of the power-off gap along the axial direction of the atomizing core is less than or equal to the height of the connecting part along the axial direction of the atomizing core.

[0021] Furthermore, the volume of the porous conductive ceramic body is less than or equal to the volume of the conductive liquid.

[0022] Furthermore, the liquid-conducting material is a porous ceramic body or oil-conducting cotton.

[0023] Furthermore, a secondary connecting part is provided inside the fluid guide, and the connecting part and the secondary connecting part are fixedly connected to each other.

[0024] Furthermore, a plurality of blind holes for gas return are provided on the liquid-conducting side of the porous conductive ceramic body and / or on the side of the liquid-conducting body opposite to the porous conductive ceramic body.

[0025] Furthermore, the volume of the porous conductive ceramic body is less than or equal to the volume of the conductive liquid.

[0026] Furthermore, the liquid-conducting material is a porous ceramic body or oil-conducting cotton.

[0027] Furthermore, a secondary connecting part is provided inside the fluid guide, and the connecting part and the secondary connecting part are fixedly connected to each other.

[0028] Furthermore, a plurality of blind holes for gas return are provided on the liquid-conducting side of the porous conductive ceramic body and / or on the side of the liquid-conducting body opposite to the porous conductive ceramic body.

[0029] Furthermore, the volume of the porous conductive ceramic body is less than or equal to the volume of the conductive liquid.

[0030] Furthermore, the liquid-conducting material is a porous ceramic body or oil-conducting cotton.

[0031] Furthermore, the electrode includes a positive electrode pin and a negative electrode pin, and the two opposite ends of the heating element are electrically connected to the positive electrode pin and the negative electrode pin, respectively.

[0032] Furthermore, both the positive electrode lead and the negative electrode lead are led out from one side of the oil guide body on which the porous conductive ceramic body is provided; or, both the positive electrode lead and the negative electrode lead are led out from the other side of the oil guide body opposite to the porous conductive ceramic body.

[0033] To achieve the above objectives, the present invention also proposes an atomizer comprising the aforementioned atomizing core.

[0034] To achieve the above objectives, the present invention also proposes an electronic atomizing device, which includes the aforementioned atomizer.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] In the technical solution of this invention, on the one hand, a porous conductive ceramic body is used as the heating element, and multiple pores are integrally arranged in the porous conductive ceramic body to conduct the atomizing liquid from the conductive liquid to the porous conductive ceramic body, so that the atomizing liquid can be transferred from the conductive liquid to the porous conductive ceramic body for atomization; on the other hand, by designing the porous conductive ceramic body into a structure including a heating part and a connecting part, and exposing the heating part to the conductive liquid side in a vertical manner, the contact area between the high-temperature part (i.e., the heating part) in the porous conductive ceramic body and the conductive liquid can be reduced, avoiding excessively large high-temperature areas between the porous conductive ceramic body and the conductive liquid, which could cause damage to the periphery of the porous conductive ceramic body. Excessive pressure can prevent the atomizing liquid in the conductive liquid from flowing away from the porous conductive ceramic body due to excessive pressure around the porous conductive ceramic body. Thus, during the operation of the porous conductive ceramic body, when the atomizing liquid in the heating element is heated and atomized, the atomizing liquid content in the porous conductive ceramic body decreases, making the pressure in the porous conductive ceramic body lower than the pressure in the conductive liquid, forming a negative pressure. This allows the atomizing liquid to flow smoothly from the conductive liquid into the porous conductive ceramic body for replenishment, enabling the atomizing core to achieve continuous heating and atomization. Therefore, it effectively reduces the risk of the atomizing core running out of oil and burning out when the single use time is too long. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the atomizing core structure in one embodiment of the present invention;

[0039] Figure 2 for Figure 1 A sectional view;

[0040] Figure 3 This is a schematic diagram of the structure of a porous conductive ceramic body in one embodiment of the present invention;

[0041] Figure 4 for Figure 3 The front view;

[0042] Figure 5 This is a schematic diagram of the atomizing core structure in another embodiment of the present invention;

[0043] Figure 6 for Figure 5 A sectional view;

[0044] Figure 7 This is a schematic diagram illustrating the working principle of the atomizing core in one embodiment of the present invention;

[0045] Figure 8 This is a schematic diagram of the atomizing core structure in another embodiment of the present invention;

[0046] Figure 9 for Figure 8 A sectional view.

[0047] Explanation of icon numbers:

[0048] 1-Conducts liquid, 11-Blind hole;

[0049] 2-Porous conductive ceramic body, 21-Connecting part, 211-Power-off gap, 22-Heating part.

[0050] 3-Electrode, 31-Positive electrode pin, 32-Negative electrode pin;

[0051] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0053] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0054] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0055] Reference Figures 1 to 3 An embodiment of the present invention provides an atomizing core, the atomizing core comprising:

[0056] Liquid guide 1, used for storing and conducting atomizing liquid;

[0057] Electrode 3;

[0058] A porous conductive ceramic body 2, electrically connected to electrode 3, has multiple pores (not shown in the figure) distributed throughout it, which allow the atomized liquid to be conducted from the liquid 1 to the porous conductive ceramic body 2. The porous conductive ceramic body 2 includes:

[0059] Connecting portion 21, which is disposed within the liquid guide 1 (illustratively, the connecting portion 21 is disposed within one side of the liquid guide 1); and

[0060] The heating element 22 is connected to the connecting part 21. The heating element 22 is vertically exposed on one side of the liquid guide 1 in the axial direction of the atomizing core (illustratively, there is a certain height difference between the heating element 22 and the liquid guide 1, and multiple outer surfaces of the heating element 22 are exposed).

[0061] In this embodiment, specifically, the atomizing core can be used in an electronic cigarette. The atomizing liquid can be e-liquid. Of course, depending on the application scenario, the atomizing liquid can also be other types of liquid media; this embodiment does not impose specific limitations on this. Specifically, when the atomizing liquid is e-liquid, the e-liquid in the guiding liquid 1 can be provided by the oil cup in the atomizer, and the e-liquid in the porous conductive ceramic body 2 can be provided by the guiding liquid 1.

[0062] In this embodiment, specifically, a porous ceramic body or oil-guiding cotton can be used as the liquid guide 1 to store and conduct the atomizing liquid. The porous ceramic body is a porous ceramic material with open pore size and high open porosity. Furthermore, since the porous ceramic body itself does not produce harmful substances even in occasional dry burning, it is more environmentally friendly and safer than oil-guiding cotton. More specifically, when the oil guide is a porous ceramic body, the material of the porous ceramic body can be any one of alumina, silicon carbide, and silicon oxide, or a mixture of any two or more of alumina, silicon carbide, and silicon oxide. Of course, other materials can also be used, as long as they meet the usage requirements. This embodiment does not impose specific limitations on this.

[0063] In this embodiment, specifically, the porous conductive ceramic body is a porous conductive ceramic material with open pore size and high open porosity. The main difference between it and a porous ceramic body is that conductive powder is added to the material of the porous conductive ceramic body, so that the porous conductive ceramic body can have conductive properties. Therefore, the porous conductive ceramic body can also be regarded as a kind of conductive porous ceramic body. In addition, by having multiple pores distributed throughout the porous conductive ceramic body 2, the atomized liquid can be smoothly conducted from the conductive liquid 1 to the porous conductive ceramic body 2.

[0064] In this embodiment, specifically, the electrode 3 can be a conductor such as a metal wire. The electrode 3 and the porous conductive ceramic body 2 can be electrically connected by welding or other means. In the specific application scenario of electronic cigarettes, the electrode 3 can be connected to the power supply of the electronic cigarette, so that the porous conductive ceramic body 2 can generate heat after being energized. More specifically, as shown in the figure, the electrode 3 specifically includes a positive electrode pin and a negative electrode pin. The two opposite ends of the heating part 22 are electrically connected to the positive electrode pin 31 and the negative electrode pin 32, respectively (specifically, both opposite ends of the heating part 22 have electrode 3 contacts. One end of the positive electrode pin 31 can be electrically connected to one end of the heating part 22 by welding or other means, and one end of the negative electrode pin 32 can be electrically connected to the other end of the heating part 22 by welding or other means). In the specific application scenario of electronic cigarettes, the positive electrode pin can be connected to the positive power supply of the electronic cigarette, and the negative electrode pin can be connected to the negative power supply of the electronic cigarette, so that the heating part 22 can generate heat after the porous conductive ceramic body 2 is energized.

[0065] In the technical solution of this invention embodiment, based on the above structural design, on the one hand, a porous conductive ceramic body 2 is used as the heating element, and multiple pores are integrally arranged in the porous conductive ceramic body 2 to conduct the atomizing liquid from the conductive liquid 1 to the porous conductive ceramic body 2, so that the atomizing liquid can be transferred from the conductive liquid 1 to the porous conductive ceramic body 2 for atomization; on the other hand, by designing the porous conductive ceramic body 2 to include a heating part 22 and a connecting part 21, and by exposing the heating part 22 to one side of the conductive liquid 1 in a vertical manner, the contact area between the high-temperature part (i.e., the heating part 22) in the porous conductive ceramic body 2 and the conductive liquid 1 can be reduced, avoiding an excessively large high-temperature area between the porous conductive ceramic body 2 and the conductive liquid 1, which would damage the atomizing liquid. Excessive pressure is generated around the porous conductive ceramic body 2, thus preventing the atomizing liquid in the conductive liquid 1 from flowing away from the porous conductive ceramic body 2 due to excessive pressure around the porous conductive ceramic body 2. Thus, during the operation of the porous conductive ceramic body 2, when the atomizing liquid contained in the heating part 22 is heated and atomized, the atomizing liquid content in the porous conductive ceramic body 2 decreases, making the pressure in the porous conductive ceramic body 2 lower than the pressure in the conductive liquid 1, forming a negative pressure. This allows the atomizing liquid to flow smoothly from the conductive liquid 1 into the porous conductive ceramic body 2 for replenishment, thereby enabling the atomizing core to achieve continuous heating and atomization. Therefore, it effectively reduces the risk of the atomizing core running out of oil and burning out when the single use time is too long.

[0066] Furthermore, referring to Figures 1 to 4 In an exemplary embodiment of the present invention, the height of the heating element 22 along the axial direction of the atomizing core is greater than or equal to the height of the connecting element 21 along the axial direction of the atomizing core, and the width of the heating element 22 is greater than or equal to the width of the connecting element 21. Illustrated, assuming the length direction of the vertical line L is the axial direction of the atomizing core, the height of the heating element 22 along the axial direction of the atomizing core is h1, the height of the connecting element 21 along the axial direction of the atomizing core is h2, the width of the heating element 22 is w1, and the width of the connecting element 21 is w2, then h1 ≥ h2, and w1 ≥ w2.

[0067] In this embodiment, based on the above structural design, by setting the height of the heating element 22 along the axial direction of the atomizing core to be greater than or equal to the height of the connecting part 21 along the axial direction of the atomizing core, and setting the width of the heating element 22 to be greater than or equal to the width of the connecting part 21, the contact area between the high-temperature part of the porous conductive ceramic body 2 and the conductive liquid 1 can be further reduced while ensuring that the atomizing core does not dry-burn. This further avoids excessive pressure on the periphery of the porous conductive ceramic body 2 due to an excessively large high-temperature area between the porous conductive ceramic body 2 and the conductive liquid 1. This allows the heating element 22 to obtain more atomizing liquid from the conductive liquid 1 through the connecting part 21, thereby enabling the heating element 22 to generate more smoke during the heating process, meeting the user's demand for "large smoke volume". Furthermore, based on this embodiment, to further avoid excessive pressure on the periphery of the porous conductive ceramic body 2 due to an excessively large high-temperature area at the contact point between the porous conductive ceramic body 2 and the oil guide body, optionally, the surface area of ​​the heating element 22 is greater than or equal to the surface area of ​​the connecting part 21.

[0068] Furthermore, referring to Figures 2 to 4 In another exemplary embodiment of the present invention, the height of the heating element 22 along the axial direction of the atomizing core is less than the height of the connecting element 21 along the axial direction of the atomizing core, and the width of the heating element 22 is greater than or equal to the width of the connecting element 21. Illustrated, assuming the length direction of the vertical line L is the axial direction of the atomizing core, the height of the heating element 22 along the axial direction of the atomizing core is h1, the height of the connecting element 21 along the axial direction of the atomizing core is h2, the width of the heating element 22 is w1, and the width of the connecting element 21 is w2, then h1 < h2, and w1 ≥ w2.

[0069] In this embodiment, based on the above structural design, by setting the height of the heating element 22 along the axial direction of the atomizing core to be less than the height of the connecting part 21 along the axial direction of the atomizing core, and setting the width of the heating element 22 to be greater than or equal to the width of the connecting part 21, it is possible to ensure that the atomizing core does not dry-burn, while allowing the heating element 22 to obtain less atomizing liquid from the liquid guide 1 through the connecting part 21. This allows the heating element 22 to quickly generate a smaller amount of smoke during the heating process, meeting the user's demand for "small puff smoke volume". Furthermore, based on this embodiment, to further avoid excessive pressure on the periphery of the porous conductive ceramic body 2 due to an excessively large high-temperature area at the contact point between the porous conductive ceramic body 2 and the oil guide body, optionally, the surface area of ​​the heating element 22 is greater than or equal to the surface area of ​​the connecting part 21.

[0070] Furthermore, referring to Figure 2 and Figure 4In another exemplary embodiment of the present invention, the height of the heating element 22 along the axial direction of the atomizing core is less than the height of the connecting element 21 along the axial direction of the atomizing core. Illustrated, assuming the length direction of the vertical line L is the axial direction of the atomizing core, the height of the heating element 22 along the axial direction of the atomizing core is h1, and the height of the connecting element 21 along the axial direction of the atomizing core is h2, then h1 < h2.

[0071] In this embodiment, based on the above structural design, by setting the height of the heating element 22 along the axial direction of the atomizing core to be less than the height of the connecting element 21 along the axial direction of the atomizing core, the path length of the atomizing liquid flowing from the guide liquid 1 to the heating element 22 can be shortened. This allows the atomizing liquid to flow more rapidly from the guide liquid 1 into the porous conductive ceramic body 2 for replenishment during the conductive heating process of the porous conductive ceramic body 2, thereby further reducing the risk of dry burning of the atomizing core due to lack of oil. Furthermore, based on this embodiment, in order to allow the atomizing liquid stored in the guide liquid 1 to flow more rapidly into the heating element 22 through the connecting element 21 for replenishment during the conductive heating process of the porous conductive ceramic body 2, optionally, the surface area of ​​the heating element 22 is smaller than the surface area of ​​the connecting element 21.

[0072] Furthermore, referring to Figures 1 to 3 In an exemplary embodiment of the present invention, the volume of the porous conductive ceramic body 2 is less than or equal to the volume of the conductive liquid 1. This configuration ensures that before the porous conductive ceramic body 2 is energized, the atomizing liquid content in the conductive liquid 1 is greater than the atomizing liquid content in the porous conductive ceramic body 2. Consequently, when the atomizing liquid in the porous conductive ceramic body 2 decreases due to heating and atomization, the pressure difference between the porous conductive ceramic body 2 and the conductive liquid 1 becomes greater, resulting in a stronger negative pressure on the heating element 22 side. This allows the atomizing liquid to flow more rapidly from the conductive liquid 1 into the porous conductive ceramic body 2 for replenishment, thereby further reducing the risk of dry burning due to lack of oil in the atomizing core and improving the atomization efficiency of the atomizing core (i.e., evaporating more atomizing liquid per unit time).

[0073] Furthermore, considering that when the porous conductive ceramic body 2 is a one-piece structure (for example, the porous conductive ceramic body 2 is a one-piece porous conductive ceramic body), when electricity is applied to the porous conductive ceramic body 2 through the electrode 3, in addition to the heating part 22 generating heat through conductivity, the connecting part 21 will also generate a certain amount of heat due to the passage of current. Therefore, in order to avoid the connecting part 21 generating too much heat and reducing the speed at which the atomizing liquid flows from the conductive liquid 1 into the porous conductive ceramic body 2, in an exemplary embodiment of the present invention, referring to... Figure 2 and Figure 3The connecting part 21 has at least one power-off gap 211 for blocking the current. The length of the power-off gap 211 along the axial direction of the atomizing core is less than or equal to the height of the connecting part 21 along the axial direction of the atomizing core. This arrangement allows the connecting part 21 to achieve a slight heating effect (since the current transmission in the connecting part 21 is blocked by the power-off gap 211, the heat of the connecting part 21 at this time mainly comes from a small portion of the heat transferred by the heating part 22). This avoids the connecting part 21 generating too much heat, which would reduce the speed at which the atomizing liquid flows from the liquid guide 1 into the porous conductive ceramic body 2. It also ensures that the atomizing liquid in the heating part 22 can be replenished in time during the conductive heating process of the heating part 22, thereby further reducing the risk of the atomizing core running dry due to lack of oil. In specific implementation, the number of power-off gaps 211 can be determined by considering the amount of atomized liquid received by the connection part 21 and the degree of heat generation. Generally speaking, the more power-off gaps 211 there are, the better the current blocking effect and the less heat generated by the connection part 21 (i.e., the better the effect of preventing the connection part 21 from heating up). The atomized liquid in the guide liquid 1 can flow more easily into the heating part 22 through the connection part 21. However, at the same time, the more power-off gaps 211 there are, the smaller the volume of the connection part 21 is, and the less atomized liquid the connection part 21 can receive. In addition, in specific implementation, preferably, the length of the power-off gap 211 along the axial direction of the atomizing core is equal to the height of the connection part 21 along the axial direction of the atomizing core. In this way, the power-off gap 211 can achieve a better current blocking effect, thereby reducing the heat generation of the connection part 21.

[0074] Furthermore, referring to Figures 1 to 3 In an exemplary embodiment of the present invention, a secondary connecting portion (not shown in the figure) is provided within the liquid guide 1, and the connecting portion 21 is fixedly connected to the secondary connecting portion. Specifically, the secondary connecting portion is a groove, and the connecting portion 21 and the secondary connecting portion cooperate to achieve fixation. This arrangement not only makes the connection between the porous conductive ceramic body 2 and the liquid guide 1 more stable, but also allows the atomizing liquid stored in the liquid guide 1 to flow into the connecting portion 21 from multiple directions (both the bottom and side surfaces of the connecting portion 21 are acceptable), thereby increasing the speed at which the atomizing liquid flows from the liquid guide 1 into the porous conductive ceramic body 2. This ensures that the atomizing liquid in the heating element 22 can be quickly replenished during the operation of the porous conductive ceramic body 2, thus further reducing the risk of dry burning due to lack of oil in the atomizing core. In some specific application scenarios, when both the liquid guide 1 and the porous conductive ceramic body 2 are porous conductive ceramic bodies, the liquid guide 1 and the porous conductive ceramic body 2 can be fixedly connected as a single unit by sintering.

[0075] Furthermore, referring to Figures 5 to 7In an exemplary embodiment of the present invention, a plurality of blind holes 11 for gas return are provided on one side of the liquid-conducting 1 containing the porous conductive ceramic body 2 and / or on the other side of the liquid-conducting 1 facing away from the porous conductive ceramic body 2. In specific implementations, the number of blind holes 11 can be flexibly set as needed, for example, there can be one or more; in addition, the position of the blind holes 11 can also be flexibly set as needed, for example, the blind holes 11 can be set on the side of the liquid-conducting 1 containing the porous conductive ceramic body 2, or on the other side of the liquid-conducting 1 facing away from the porous conductive ceramic body 2, or blind holes 11 can be provided on both the side of the liquid-conducting 1 containing the porous conductive ceramic body 2 and the other side of the liquid-conducting 1 facing away from the porous conductive ceramic body 2.

[0076] In this embodiment, it should be noted that, in the field of electronic cigarette technology, the so-called "return gas" refers to gas passing through the guide liquid 1 and entering the oil cup (the oil cup stores atomizing liquid; when the atomizing liquid in the guide liquid 1 decreases, the atomizing liquid in the oil cup can flow into the guide liquid 1 to replenish it), thereby offsetting the negative pressure in the oil cup (the reason for the negative pressure in the oil cup is that as the atomizing liquid in the oil cup gradually decreases, and the part of the oil cup without atomizing liquid is a vacuum, the pressure in the oil cup will gradually decrease and become less than the external atmospheric pressure, thus generating negative pressure, causing the atomizing liquid to be unable to continue flowing out of the oil cup or the flow rate to become slower and slower), so that the pressure in the oil cup is the same as the external atmospheric pressure, thereby allowing the atomizing liquid to flow smoothly from the oil cup into the guide liquid 1.

[0077] In this embodiment, compared to the liquid guide 1 without blind holes 11, the path of gas passing through the liquid guide 1 is shortened by adding blind holes 11, thus increasing the return gas speed and achieving a better return gas effect. This allows the atomizing liquid to flow more smoothly from the oil cup into the liquid guide 1 during the conductive heating process of the porous conductive ceramic body 2. In other words, since the liquid guide 1 itself is a porous structure, it can also return gas. However, compared to the liquid guide 1 containing blind holes 11 for return gas, the path of gas passing through the liquid guide 1 without blind holes 11 is longer, resulting in a relatively slower return gas speed.

[0078] Furthermore, referring to Figure 1 and Figure 2In an exemplary embodiment of the present invention, both the positive electrode pin 31 and the negative electrode pin 32 are led out from the oil guide body to the other side of the porous conductive ceramic body 2. With this configuration, when the atomizing core is applied to an electronic cigarette, the positive electrode pin 31 and the negative electrode pin 32 of the atomizing core can be positioned towards the power supply section of the electronic cigarette to connect the electrode 3 to the power supply section. Since the porous conductive ceramic body 2 is positioned towards the air passage of the electronic cigarette, during the conductive heating process of the porous conductive ceramic body 2, the vapor generated by the heating element 22 due to heating and evaporating the atomizing liquid can directly flow into the air passage for user use.

[0079] Furthermore, referring to Figure 8 and Figure 9 In another exemplary embodiment of the present invention, both the positive electrode pin 31 and the negative electrode pin 32 extend from one side of the oil guide body provided with the porous conductive ceramic body 2. With this configuration, when the atomizing core is applied to an electronic cigarette, the positive electrode pin 31 and the negative electrode pin 32 of the atomizing core can be positioned towards the power supply section of the electronic cigarette to connect the electrode 3 to the power supply section. Since the porous conductive ceramic body 2 is positioned away from the air passage of the electronic cigarette, during the conductive heating process of the porous conductive ceramic body 2, the smoke generated by the heating element 22 due to heating and evaporating the atomizing liquid will first flow towards the direction of the power supply section, then circle around the atomizing core, and finally flow into the air passage for user use.

[0080] Correspondingly, embodiments of the present invention also provide an atomizer, which includes the atomizing core of any of the above embodiments.

[0081] In this embodiment, thanks to the improvements to the atomizing core described above, the atomizer of this embodiment has the same technical effects as the atomizing core described above, which will not be repeated here. It should be noted that other aspects of the atomizer in this embodiment can be found in the prior art, and will not be repeated here.

[0082] Correspondingly, embodiments of the present invention also provide an electronic atomizing device, which includes the atomizer in any of the above embodiments.

[0083] In this embodiment, specifically, the electronic atomizing device can be an electronic cigarette. Thanks to the improvements in the atomizing core described above, the atomizer in this embodiment has the same technical effects as the aforementioned atomizing core, which will not be repeated here. It should be noted that other aspects of the electronic atomizing device in this embodiment can be found in the prior art, and will not be repeated here.

[0084] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An atomizing core, characterized in that, include: Liquid conductor, used for storing and conducting atomizing liquid; electrode; as well as A porous conductive ceramic body, electrically connected to the electrode, wherein the porous conductive ceramic body has a plurality of pores distributed throughout, which can conduct the atomized liquid from the conductive liquid to the porous conductive ceramic body, the porous conductive ceramic body comprising: A connecting portion, disposed within the guiding liquid, having at least one power-off gap for blocking current, wherein the length of the power-off gap along the axial direction of the atomizing core is less than or equal to the height of the connecting portion along the axial direction of the atomizing core; and The heating element is connected to the connecting part. The heating element is vertically exposed on one side of the liquid guide in the axial direction of the atomizing core. The contact area between the heating element and the liquid guide is smaller than the surface area of ​​the liquid guide side connected to the heating element.

2. The atomizing core as described in claim 1, characterized in that, The height of the heating element along the axial direction of the atomizing core is greater than or equal to the height of the connecting element along the axial direction of the atomizing core, and the width of the heating element is greater than or equal to the width of the connecting element.

3. The atomizing core as described in claim 2, characterized in that, The surface area of ​​the heating element is greater than or equal to the surface area of ​​the connecting element.

4. The atomizing core as described in claim 1, characterized in that, The height of the heating element along the axial direction of the atomizing core is less than the height of the connecting element along the axial direction of the atomizing core, and the width of the heating element is greater than or equal to the width of the connecting element.

5. The atomizing core as described in claim 4, characterized in that, The surface area of ​​the heating element is greater than or equal to the surface area of ​​the connecting element.

6. The atomizing core as described in claim 1, characterized in that, The height of the heating element along the axial direction of the atomizing core is less than the height of the connecting part along the axial direction of the atomizing core.

7. The atomizing core as described in claim 6, characterized in that, The surface area of ​​the heating element is smaller than the surface area of ​​the connecting element.

8. The atomizing core as described in any one of claims 1 to 7, characterized in that, The volume of the porous conductive ceramic body is less than or equal to the volume of the conductive liquid.

9. The atomizing core as described in claim 8, characterized in that, The liquid-conducting material is a porous ceramic body or oil-conducting cotton.

10. The atomizing core according to any one of claims 1 to 7, characterized in that, The fluid guide is provided with a secondary connecting part, and the connecting part and the secondary connecting part are fixedly connected to each other.

11. The atomizing core according to any one of claims 1 to 7, characterized in that, A plurality of blind holes for gas return are provided on one side of the liquid-conducting body and / or on the other side of the liquid-conducting body facing away from the porous conductive ceramic body.

12. The atomizing core as described in claim 11, characterized in that, The volume of the porous conductive ceramic body is less than or equal to the volume of the conductive liquid.

13. The atomizing core as described in claim 12, characterized in that, The liquid-conducting material is a porous ceramic body or oil-conducting cotton.

14. The atomizing core as described in claim 12, characterized in that, The fluid guide is provided with a secondary connecting part, and the connecting part and the secondary connecting part are fixedly connected to each other.

15. The atomizing core according to any one of claims 1 to 7, characterized in that, The electrode includes a positive electrode pin and a negative electrode pin, and the two opposite ends of the heating element are electrically connected to the positive electrode pin and the negative electrode pin, respectively.

16. The atomizing core as described in claim 15, characterized in that, Both the positive electrode lead and the negative electrode lead are led out from the side of the liquid-conducting body where the porous conductive ceramic body is located; or, both the positive electrode lead and the negative electrode lead are led out from the other side of the liquid-conducting body away from the porous conductive ceramic body.

17. An atomizer, characterized in that, The atomizer includes an atomizing core as described in any one of claims 1 to 16.

18. An electronic atomizing device, characterized in that, The electronic atomizing device includes the atomizer as described in claim 17.

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