Heating element, atomizing core and atomizing device

Abstract

The utility model relates to the technical field of electronic atomization, in particular to a heating piece, an atomization core and an atomization device. The heating element comprises a first heating structure and a second heating structure which are connected through a connecting part, second leads are arranged on the first heating structure and the second heating structure respectively, a first lead is arranged on the connecting part, and in addition, the center of each of the first heating structure and the second heating structure is provided with a hollow structure penetrating in the axial direction. And the heating element is fixedly arranged in the porous matrix. During use, the power supply assembly alternately supplies current to the first heating structure and the second heating structure, and alternate heating of the first heating structure and the second heating structure is achieved. By the adoption of the scheme, the service life of the heating piece can be prolonged, when the first heating structure is used for atomization work, the second heating structure can temporarily stop working, liquid absorption of the base body is facilitated, and therefore the possibility of dry burning is reduced, the problem of carbon deposition is solved, and the use taste is guaranteed.

Description

Technical Field

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

[0002] In the field of electronic atomization technology, electronic atomization equipment generally includes an atomization core, and the main structure of the atomization core includes a heating element, a porous body, and other components. Among them, the heating element is the key part of the atomization core. It is responsible for converting electrical energy into thermal energy to atomize the atomized liquid. The production of the heating element usually involves specific processing and molding of the heating material (such as nickel-chromium alloy or tungsten alloy) to form a heating wire or heating sheet with a specific shape and size.

[0003] At present, the existing heating elements are generally single-shot structures, that is, there is only one heating area, and they will work repeatedly in the same area during operation. Due to long-term operation, carbon deposition problems will occur, resulting in reduced atomization effect. In addition, during the continuous atomization process, the core will become sticky due to insufficient liquid supply, which will shorten the service life. Utility Model Content

[0004] The heating element, atomization core and atomization device provided in the present application effectively solve the problem that the heating structure of the existing electronic atomization device is prone to carbon deposition after being used for a period of time, thereby leading to reduced atomization effect and shortened service life.

[0005] According to one aspect of the present application, a heating element is provided in an embodiment, which includes a first heating structure and a second heating structure connected by a connecting portion, the connecting portion is provided with a first lead, and the first heating structure and the second heating structure are respectively provided with a second lead, the first lead is used for inputting current, and the second lead is used for outputting current, or the first lead is used for outputting current, and the second lead is used for inputting current; the centers of the first heating structure and the second heating structure both have a hollow structure that passes through in the axial direction.

[0006] In an achievable embodiment, the first heating structure and the second heating structure are arranged axially symmetrically with respect to the first lead provided at the connecting portion; or,

[0007] The first heating structure and the second heating structure are centrally symmetrically arranged with respect to a first lead arranged on the connecting portion.

[0008] In a feasible embodiment, the heating element is a heating wire, one end of the heating wire is spirally arranged to form a first heating structure; the other end of the heating wire is also spirally arranged to form a second heating structure.

[0009] In a feasible embodiment, the diameter of the heating wire is in the range of 0.5 to 1 mm; and / or the resistance values ​​of the first heating structure and the second heating structure are both set in the range of 1.1 to 1.5 Ω.

[0010] In one feasible embodiment, the first heating structure is a heating net, one end of the heating net is bent along the side to the other end of the heating net, forming a first heating structure with a hollow interior; and / or the second heating structure is a heating net, one end of the heating net is bent along the side to the other end of the heating net, forming a second heating structure with a hollow interior.

[0011] In a feasible embodiment, a gap is provided between the end of the first heating structure and the connecting portion, and a gap is provided between the end of the second heating structure and the connecting portion.

[0012] In a feasible embodiment, a hollow structure is provided at the connection portion between the first heating structure and the second heating structure.

[0013] In an achievable implementation, the thickness of the heating net is set to 0.04-0.12 mm; and / or the resistance values ​​of the first heating structure and the second heating structure are both set to between 1.1 and 1.5 Ω.

[0014] According to one aspect of the present application, an embodiment provides an atomizer core, comprising the heating element as described above, and further comprising a porous substrate;

[0015] An installation cavity is provided in the porous base, and the heating element is installed in the installation cavity.

[0016] In an achievable embodiment, the installation cavity includes a first installation cavity and a second installation cavity, the first heat-generating structure is installed in the first installation cavity, and the second heat-generating structure is installed in the second installation cavity.

[0017] In one feasible embodiment, the cross section of the porous matrix is ​​configured as an "8"-shaped structure, or a rectangular structure, or a circular rectangular structure.

[0018] According to one aspect of the present application, an embodiment provides an atomization device, comprising the heating element as described above, or the atomization core as described above; and

[0019] A power supply device is electrically connected to the heating element.

[0020] According to a heating element, an atomization core and an atomization device of the above embodiment, wherein the heating element includes a first heating structure and a second heating structure connected by a connecting portion, and a second lead is respectively provided on the first heating structure and the second heating structure, and a first lead is provided on the connecting portion. In addition, the centers of the first heating structure and the second heating structure have a hollow structure that penetrates along the axial direction, and the heating element is fixedly set in the porous matrix. When in use, the power supply component alternately provides current to the first heating structure and the second heating structure to achieve alternating heating of the first heating structure and the second heating structure. By adopting the above scheme of this embodiment, the service life of the heating element is improved. When the first heating structure is used for atomization, the second heating structure can stop working temporarily, which helps the porous matrix to absorb liquid, thereby reducing the possibility of dry burning, reducing carbon deposition problems, and ensuring the taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of an atomizer core provided in this application;

[0022] Figure 2 A schematic diagram of the structure of the atomizer core provided in this application from a bottom-up perspective;

[0023] Figure 3 This is another schematic diagram of the atomizer core provided in this application when viewed from above;

[0024] Figure 4 This is a schematic diagram of the structure of a heating element in the present application that is a heating wire;

[0025] Figure 5 This is another structural diagram of the heating element of the present application being a heating wire;

[0026] Figure 6 This is a schematic diagram of the structure of a heating element in the present application that is a heating network;

[0027] Figure 7 This is another structural diagram of the heating element of the present application being a heating net;

[0028] Figure 8 (a), (b) and (c) are schematic diagrams of porous matrices with different structures in some embodiments of the present application.

[0029] Figure numerals: 10, porous matrix; 20, mounting cavity; 30, heating element; 31, first heating structure; 32, second heating structure; 33, connecting portion; 34, first lead; 35, second lead. DETAILED DESCRIPTION

[0030] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0031] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0032] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0033] Combine Figure 4-Figure 7 As shown, a heating element 30 provided in this embodiment includes a first heating structure 31 and a second heating structure 32 connected by a connecting portion 33, a first lead 34 is provided on the connecting portion 33, and a second lead 35 is provided on the first heating structure 31 and the second heating structure 32 respectively; wherein, the first lead is used for inputting current and the second lead is used for outputting current, or the first lead is used for outputting current and the second lead is used for inputting current; the centers of the first heating structure 31 and the second heating structure 32 both have a hollow structure that passes through in the axial direction.

[0034] As an embodiment, in actual application, the configuration of the first lead 34 and the second lead 35 can be divided into two situations: the first situation is that the first lead 34 is used for outputting current and the second lead 35 is used for inputting current; the second situation is that the first lead 34 is used for inputting current and the second lead 35 is used for outputting current. The following embodiments use the first configuration as an example.

[0035] Specifically, the heating element 30 connects the first heating structure 31 and the second heating structure 32 into a whole through the connecting portion 33, wherein the centers of the first heating structure 31 and the second heating structure 32 both have a hollow structure that passes through in the axial direction, a second lead 35 is provided at the end of the first heating structure 31, and a second lead 35 is provided at the end of the second heating structure 32, and a first lead 34 is provided on the connecting portion 33 connecting the first heating structure 31 and the second heating structure 32, wherein the first lead 34 and the second lead 35 can be provided in parallel. During operation, when current flows into the first heating structure 31 through the second lead 35 and flows out through the first lead 34, the first heating structure 31 is heated; when current flows into the second heating structure 32 through the second lead 35 and flows out through the first lead 34, the second heating structure 32 is heated. The two heating structures can be heated in a cycle or heated together.

[0036] The connecting portion 33 and the first heating structure 31 and the second heating structure 32 may be integrally formed.

[0037] With the heating element 30 of this embodiment, the two heating structures can generate heat alternately, that is, when one of the heating structures is working, the other heating element can temporarily stop working, thereby avoiding the problem of insufficient liquid supply in the local area due to continuous atomization in the same area, avoiding dry burning, and thus reducing the possibility of carbon deposition, thereby increasing the service life of the heating element and ensuring the taste during smoking.

[0038] In some embodiments, the first heating structure 31 and the second heating structure 32 are axially symmetrically arranged about the first lead 34 provided on the connection portion 33 ; or, the first heating structure 31 and the second heating structure 32 are centrally symmetrically arranged about the first lead 34 provided on the connection portion 33 .

[0039] As an implementation method of this embodiment, the heating element 30 is a heating wire. Figure 4 and Figure 5 One end of the heating wire is spirally arranged to form a first heating structure 31; the other end of the heating wire is also spirally arranged to form a second heating structure 32; second leads 35 are respectively arranged at the ends of the first heating structure 31 and the ends of the second heating structure 32, and a first lead 34 is arranged on the heating wire connecting the first heating structure 31 and the second heating structure 32.

[0040] In this embodiment, specifically, Figure 4 and Figure 5The spiral first heating structure 31 forms a hollow structure that is axially continuous, that is, the interior of the spiral first heating structure 31 is a hollow structure that is axially continuous. Similarly, the spiral second heating structure 32 forms a hollow structure that is axially continuous, that is, the interior of the spiral second heating structure 32 is a hollow structure that is axially continuous. A second lead 35 is provided at the end of the spiral first heating structure 31, a second lead 35 is provided at the end of the spiral second heating structure 32, and a first lead 34 is provided on the heating wire connecting the first heating structure 31 and the second heating structure 32 (that is, the connecting part 33).

[0041] In this embodiment, when the heating element 30 is a heating wire, the shape of the heating wire can be set according to actual needs, and the first heating structure 31 and the second heating structure 32 of the heating wire can be set to be symmetrical about the first lead 34. Figure 4 The first heating structure 31 and the second heating structure 32 of the heating wire can also be set to be symmetrical about the first lead 34, and its structure is as shown Figure 5 shown.

[0042] Furthermore, the diameter of the heating wire is in the range of 0.5 to 1 mm; and / or the resistance values ​​of the first heating structure 31 and the second heating structure 32 are both set in the range of 1.1 to 1.5Ω.

[0043] In this embodiment, the diameter of the heating wire is set between 0.5 and 1 mm. Since the diameter of the heating wire directly affects the resistance and thus the heating temperature, the inventors have found through experiments that the best atomization effect is achieved when the diameter of the heating wire is set between 0.5 and 1 mm. Similarly, the best atomization effect is achieved when the resistance of the heating structure is set between 1.1 and 1.5 Ω.

[0044] As another implementation of this embodiment, refer to Figure 6 and Figure 7 The first heating structure 31 is a heating net, one end of the heating net is bent along the side to the other end of the heating net, forming a first heating structure 31 with a hollow interior; and / or, the second heating structure 32 is a heating net, one end of the heating net is bent along the side to the other end of the heating net, forming a second heating structure 32 with a hollow interior.

[0045] The other end of the heating net of the first heating structure 31 and the other end of the heating net of the second heating structure 32 are connected to form a connecting portion 33; second leads 35 are respectively provided at the end of one end of the first heating structure 31 and the end of one end of the second heating structure 32, and a first lead 34 is provided at the portion where the first heating structure 31 and the second heating structure 32 are connected (i.e., the connecting portion 33).

[0046] Furthermore, the first heating structure 31 and the second heating structure 32 are axially symmetrically arranged with respect to the first lead 34 arranged on the connection portion 33 ; or, the first heating structure 31 and the second heating structure 32 are centrally symmetrically arranged with respect to the first lead 34 arranged on the connection portion 33 .

[0047] In this embodiment, when the heating element 30 is a heating net, the shape of the heating net can be set according to actual needs, and the first heating structure 31 and the second heating structure 32 of the heating net can be set to be symmetrical about the first lead 34. Figure 6 It is also possible to heat the first heating structure 31 of the heating network

[0048] The second heating structure 32 is arranged to be centrally symmetrical about the first lead 34. The structure is as follows: Figure 7 It should be noted that, in this embodiment Figure 6 and Figure 7 The solid sheet structure of the heating net is just for illustration. In actual application, the heating net can be a heating net with various hollow structures.

[0049] In some other specific implementations of this embodiment, the first heating structure 31, the second heating structure 32 and the connecting portion 33 may be integrally formed, such as Figure 6 、 Figure 7 shown.

[0050] The heating element 30 proposed in this application is generally arranged in an "8" shape with double atomization channels (i.e., double hollow structures extending axially). Figures 4 to 7 .

[0051] As a further improvement of this embodiment, refer to Figure 6 and Figure 7 When the heating element is a heating net, a gap is set between the end of the first heating structure and the connecting part, and a gap is set between the end of the second heating structure and the connecting part.

[0052] In this embodiment, since the connecting portion is provided with a first lead 34, and the ends of the first heating structure and the second heating structure are respectively provided with second leads 35, the end of the first heating structure is not connected to the connecting portion (that is, a gap is provided), which can ensure the independence of the signal transmission between the first lead 34 and the second lead 35, and avoid the situation where the two leads are attached together and cause a short circuit. Similarly, the end of the second heating structure is not connected to the connecting portion (that is, a gap is provided), which also avoids the situation where the two leads are attached together and cause a short circuit; in addition, in some atomizer cores, the gap can also be used for the passage of liquid-conducting substrates (such as liquid-conducting cotton, etc.), or it can be adapted to liquid-conducting substrates (such as liquid-conducting cotton, etc.) that also have a gap to avoid empty burning.

[0053] As a further improvement of this embodiment, Figure 6 and Figure 7 The connection between the first heating structure and the second heating structure is provided with a hollow structure. Specifically, the connection portion of the heating net can be provided with a discontinuous hollow structure to reduce the situation where the heating net does not atomize when heated inside the ceramic core, while also improving the connection strength between the heating net and the ceramic core.

[0054] Furthermore, the thickness of the heating net is set to 0.04-0.12 mm; and / or the resistance values ​​of the first heating structure 31 and the second heating structure 32 are both set to between 1.1 and 1.5 Ω.

[0055] In this embodiment, the thickness of the heating network is set to 0.04-0.12 mm. Since the thickness of the heating network directly affects the resistance value and thus the heating temperature, the inventors found through experiments that the best atomization effect is achieved when the thickness of the heating network is set between 0.04 and 0.12 mm. Similarly, the best atomization effect is achieved when the resistance value of the heating structure is set between 1.1 and 1.5 Ω.

[0056] refer to Figure 1-Figure 3 This embodiment provides an atomizer core, comprising the heating element of the above embodiment, and further comprising a porous base 10; the porous base 10 is provided with a mounting cavity 20, and the heating element 30 is mounted in the mounting cavity 20. As an embodiment, the porous base 10 can be a porous ceramic core. Specifically, the porous ceramic core can be integrally formed with the heating element 30 through a hot die casting process.

[0057] In actual use, after the aerosol matrix passes through the porous matrix 10, it is heated by the first heating structure 31 or the second heating structure 32 to achieve atomization of the aerosol matrix, and the aerosol generated by atomization is discharged through the hollow structure of the heating element 30. The porous matrix 10 is set to the material of the porous ceramic core, and the porous matrix 10 and the heating element 30 are processed into a whole through a hot die casting process so that the two are tightly fixed. Specifically, a ceramic slurry is first prepared, and the heating element 30 is placed on the hot die casting mold through a customized hot die casting mold, and a ceramic green body is prepared by a hot die casting process, and then the overall structure formed by the porous ceramic core and the heating element 30 is obtained by debinding and sintering.

[0058] Furthermore, the porous substrate of this embodiment is provided with a first mounting cavity and a second mounting cavity, the first heating structure 31 is installed in the first mounting cavity, and the second heating structure 32 is installed in the second mounting cavity. Specifically, the shape of the cross section of the porous substrate 10 can be set as follows: Figure 8 The "8" shaped structure shown in (a) can also be set as Figure 8The rectangular structure shown in (b) can also be set as Figure 8 The rectangular structure shown in (c) in FIG. Among them, the porous ceramic core whose cross-section is set to a rectangular structure or a circular rectangular structure has a large liquid storage capacity, and the porous ceramic core whose cross-section is set to an "8"-shaped structure has a smaller liquid storage capacity, but its liquid conduction rate is the highest. Therefore, the shape of the appropriate porous ceramic can be selected according to actual needs. For example, from the perspective of atomization, the liquid conduction rate has a greater influence on the atomization effect. Therefore, the porous ceramic core whose cross-section is set to an "8"-shaped structure has the best atomization process performance. If considered from the perspective of atomization duration, the liquid storage capacity has a greater influence on the atomization duration effect. Therefore, the porous ceramic core whose cross-section is set to a rectangular or circular rectangular shape performs best.

[0059] By adopting the atomization device of this embodiment, the service life of the heating element 30 can be extended. When the first heating structure 31 is used for atomization, the second heating structure 32 can temporarily stop working, avoiding the problem of insufficient liquid supply in a local area due to continuous atomization in the same area, thereby reducing the possibility of dry burning. In addition, carbon deposits are reduced and the taste is guaranteed. Since the heating element 30 has been described in detail in the above embodiment, this embodiment will not be described in detail here.

[0060] An atomization device provided in this embodiment includes the heating element 30 or the atomization core as described above, and a power supply device; the power supply device is electrically connected to the heating element 30 for providing electrical energy to the heating element 30.

[0061] By adopting the heating element 30, atomizer core, and atomizer device of this embodiment, the service life of the heating element 30 can be extended. When the first heating structure 31 is used for atomization, the second heating structure 32 can temporarily stop working, which helps the substrate absorb liquid, thereby reducing the possibility of dry burning, reducing carbon deposits, and ensuring the taste. The power supply device can be a power supply or a power supply integrated into the control chip. The heating element 30 has been described in detail in the above embodiment and will not be described in detail in this embodiment.

[0062] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A heating element, characterized in that: The heating element includes a first heating structure and a second heating structure connected by a connecting portion, the connecting portion is provided with a first lead, and the first heating structure and the second heating structure are respectively provided with a second lead, the first lead is used for inputting current, and the second lead is used for outputting current, or the first lead is used for outputting current, and the second lead is used for inputting current; the centers of the first heating structure and the second heating structure both have a hollow structure that passes through in the axial direction.

2. The heating element according to claim 1, wherein: The first heating structure and the second heating structure are arranged axially symmetrically with respect to the first lead provided on the connecting portion; or, The first heating structure and the second heating structure are centrally symmetrically arranged with respect to a first lead arranged on the connecting portion.

3. The heating element according to claim 1 or 2, characterized in that: The heating element is a heating wire, one end of which is arranged in a spiral shape to form a first heating structure; the other end of the heating wire is also arranged in a spiral shape to form a second heating structure.

4. The heating element according to claim 3, wherein: The diameter of the heating wire is in the range of 0.5 to 1 mm; and / or the resistance values ​​of the first heating structure and the second heating structure are both set in the range of 1.1 to 1.5 Ω.

5. The heating element according to claim 1 or 2, characterized in that: The first heating structure is a heating net, one end of which is bent along the side to the other end of the heating net to form a first heating structure with a hollow interior; and / or the second heating structure is a heating net, one end of which is bent along the side to the other end of the heating net to form a second heating structure with a hollow interior.

6. The heating element according to claim 5, wherein: A gap is provided between the end of the first heating structure and the connecting portion, and a gap is provided between the end of the second heating structure and the connecting portion.

7. The heating element according to claim 5, wherein: A hollow structure is provided at the connection portion between the first heating structure and the second heating structure.

8. The heating element according to claim 5, wherein: The thickness of the heating net is set to 0.04-0.12 mm; and / or the resistance values ​​of the first heating structure and the second heating structure are both set to between 1.1 and 1.5 Ω.

9. An atomizer core, characterized in that: The heating element according to any one of claims 1 to 8, further comprising a porous matrix; An installation cavity is provided in the porous base, and the heating element is installed in the installation cavity.

10. The atomizer core according to claim 9, characterized in that The installation cavity includes a first installation cavity and a second installation cavity. The first heating structure is installed in the first installation cavity, and the second heating structure is installed in the second installation cavity.

11. The atomizer core according to claim 9 or 10, characterized in that: The cross section of the porous matrix is ​​configured as an "8"-shaped structure, a rectangular structure, or a circular rectangular structure.

12. An atomizing device, characterized in that: include: The heating element according to any one of claims 1 to 8, or the atomizer core according to any one of claims 9 to 11; as well as, A power supply device is electrically connected to the heating element.

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