Atomizer and atomizing core thereof

Abstract

The present application relates to an atomizer and an atomizing core, the atomizing core comprising a porous body and a heating element, the porous body comprising a first end face, a second end face opposite to the first end face, and a central passage extending from the first end face to the second end face; the heating element is arranged on the first end face and comprises a first heating unit and a circular-arc-shaped second heating unit and a circular-arc-shaped third heating unit; the second heating unit and the third heating unit are distributed on two opposite sides of the first heating unit at intervals and share a common center; one end of the second heating unit and the third heating unit is respectively electrically connected with the first heating unit; the first heating unit comprises a central through hole, and the central passage is in communication with the central through hole. The beneficial effects of the present application are that the heating element of the atomizing core adopts concentric arc-shaped heating units, the heating is more uniform, and the amount of mist can be significantly improved.

Description

Technical Field

[0001] This invention relates to an atomizing device, and more specifically, to an atomizer and its atomizing core. Background Technology

[0002] The atomizing cores of electronic atomizing devices used for inhaling aerosols in related technologies are mainly divided into two types: strip-shaped atomizing cores and cylindrical atomizing cores.

[0003] Long, strip-shaped atomizing cores embed the heating element into the surface of a long, porous body through methods such as screen printing, coating, or direct bonding of metal sheets. Because the heating element is exposed on the porous body surface and directly connected to the atomization chamber, there is sufficient atomization space and mist storage space, resulting in a large mist output. However, this type of atomizing core has a relatively complex mist channel, and the mist needs to pass through a long channel for inhalation, which can affect the aroma reproduction and mist temperature. In addition, the long and complex channel can easily cause mist condensation, which can accumulate and form large droplets that block the channel, affecting the mist output. In severe cases, it can even cause leakage, which has a very negative impact on the vaping experience.

[0004] Cylindrical atomizing coils typically place the heating element in the central through-hole of the cylinder, surrounded by a porous body. During inhalation, the mist (aerosol) is directly transmitted from the central hole to the mouthpiece. The airway is short, the structure is simple, it is not easy to clog, the mist transmission speed is fast, and the aroma reproduction and mist temperature experience are better. However, the central hole of a cylindrical atomizing coil is small, and the mist is directly generated in the central hole during the atomization process. There is not enough space for atomization and storage, and the amount of mist produced is relatively low. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an improved atomizer and its atomizing core.

[0006] To address the aforementioned technical problems, the present invention provides an atomizing core comprising a porous body and a heating element. The porous body includes a first end face, a second end face opposite to the first end face, and a central channel extending from the first end face to the second end face. The heating element is disposed on the first end face and includes a first heating unit, an arc-shaped second heating unit, and an arc-shaped third heating unit. The second heating unit and the third heating unit are spaced apart on two opposite sides of the first heating unit and share a common center. One end of the second heating unit and the third heating unit are electrically connected to the first heating unit. The first heating unit includes a central through hole, and the central channel communicates with the central through hole.

[0007] Preferably, the second heating unit includes at least two arc-shaped heating elements arranged in parallel and electrically connected in series.

[0008] Preferably, the length of at least one of the at least two arc-shaped heating parts that is closer to the central through hole is less than the length of the at least one arc-shaped heating part that is farther away from the central through hole.

[0009] Preferably, the at least two arc-shaped heating elements include a first heating element, a second heating element, and a third heating element, wherein the first heating element, the second heating element, and the third heating element are co-centered with the first heating unit and are arranged in parallel intervals.

[0010] Preferably, the second heating unit further includes a fourth heating element, one end of which is connected to the first heating unit, and the other end of which is connected to one end of the first heating element, so as to realize the electrical connection between the second heating unit and the first heating unit.

[0011] Preferably, the third heating unit includes at least two other arc-shaped heating elements arranged in parallel and electrically connected in series.

[0012] Preferably, the length of at least one of the at least two arc-shaped heating portions closer to the central through hole is less than the length of the at least one arc-shaped heating portion farther from the central through hole.

[0013] Preferably, the at least two other arc-shaped heating elements include a fifth heating element, a sixth heating element, and a seventh heating element, wherein the fifth heating element, the sixth heating element, and the seventh heating element are co-centered with the first heating unit and are arranged in parallel intervals.

[0014] Preferably, the third heating unit further includes an eighth heating element, one end of which is connected to the first heating unit, and the other end of which is connected to one end of the fifth heating element, so as to realize the electrical connection between the third heating unit and the first heating unit.

[0015] Preferably, the heating element includes a first electrode connection unit and a second electrode connection unit, the first electrode connection unit and the second electrode connection unit being disposed at intervals on two opposite sides of the first heating unit, and respectively connected to the other end of the second heating unit and the third heating unit.

[0016] Preferably, the first electrode connection unit and the second electrode connection unit are arranged in parallel and spaced apart on opposite sides of the second heating unit and the third heating unit.

[0017] Preferably, the heating element is generally circular.

[0018] Preferably, the porous body is a ceramic porous body.

[0019] Preferably, the heating element is a heating film formed on the surface of the porous body or a metal heating element bonded to the surface of the porous body.

[0020] An atomizer is also provided, comprising the atomizer coil of any of the above.

[0021] Preferably, the atomizer further includes a housing; the atomizing core is disposed inside the housing; the housing includes an atomizing chamber facing the first end face, a liquid storage chamber facing the second end face, and an air outlet channel communicating with the central channel.

[0022] Preferably, the atomizing chamber is located at the bottom of the housing; the air outlet channel is longitudinally disposed within the housing and communicates with the atomizing chamber; the liquid storage chamber is located at the upper part of the atomizing core and surrounds the air outlet channel.

[0023] The beneficial effects of this invention are as follows: the heating element of the atomizing core adopts a concentric arc-shaped heating unit, which provides uniform heating and can significantly increase the amount of mist. Attached image description:

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0025] Figure 1 This is a longitudinal sectional view of an atomizer in some embodiments of the present invention.

[0026] Figure 2 yes Figure 1 The diagram shows the three-dimensional structure of the atomizer core with the bottom facing upwards.

[0027] Figure 3 yes Figure 1 A three-dimensional structural diagram of the heating element of the atomizing core is shown. Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] Figure 1 and Figure 2 Atomizer 1 according to some embodiments of the present invention is shown. Atomizer 1 is used to heat and atomize a liquid aerosol to generate a matrix for inhalation by a user. In some embodiments, it may be flat and cylindrical for easy grip. In some embodiments, atomizer 1 includes a housing 10, an atomizing core 20, and a pair of electrodes 30. The housing 10 forms an atomization chamber 11, a liquid storage chamber 13, and an air outlet channel 15. The atomizing core 20 is disposed within the housing 10 and is used to heat and atomize the liquid aerosol to generate the matrix. The pair of electrodes 30 are electrically connected to the atomizing core 20 for electrically connecting the atomizing core 20 to a battery device.

[0030] like Figure 1 As shown, in some embodiments, the housing 10 may include an atomizing chamber 11, a liquid storage chamber 13, and an air outlet channel 15. The atomizing chamber 11 is located at the bottom of the housing 10 and is used to contain aerosols and mix them with ambient air. The air outlet channel 15 is longitudinally disposed within the housing 10 and communicates with the atomizing chamber 11, used to discharge the mixture of aerosol and air. The liquid storage chamber 13 is located above the atomizing core 12 and surrounds the air outlet channel 15, used to contain the liquid aerosol generation matrix. A flat nozzle communicating with the air outlet channel 15 may be formed at the upper end of the housing 10 for convenient inhalation by the user.

[0031] like Figure 2 As shown, in some embodiments, the atomizing core 20 may include a porous body 21 and a heating element 23. The porous body 21 is used to transport the liquid aerosol generating matrix in the liquid storage chamber 13 to the heating element 23. The heating element 23 is disposed on the porous body 21 and is used to generate high temperature after being energized to heat the atomized liquid aerosol generating matrix. In some embodiments, the porous body 21 may be a porous ceramic body, preferably a sintered porous ceramic body, to transport the liquid aerosol generating matrix by capillary force. The porous ceramic may be made of alumina, silicon oxide, silicon nitride, silicate, and silicon carbide, etc., and the porosity and average pore size are not limited. In some embodiments, the porous ceramic body may be formed by slip casting or powder pressing, and the shape of the matrix is ​​not limited; the size of the central through hole may be 0.1mm-5.00mm, and the shape and number of through holes are not limited.

[0032] For example Figure 2 As shown, in some embodiments, the porous body 21 may include a first end face 211, a second end face 213, and a central channel 215. The first end face 211 is disposed at the bottom of the porous body 21 and is used to mount the heating element 23 to form an atomizing surface. The second end face 213 is disposed on the top of the porous body 21 opposite to the first end face 211 and is used to contact the liquid aerosol generating matrix to form a liquid absorption surface. The central channel 215 is disposed inside the porous body 21 and extends from the first end face 211 to the second end face, and is used to connect the atomizing chamber 11 to the air outlet channel 15.

[0033] In some embodiments, the heating element 23 can adopt a circular or near-circular design, which is more conducive to the full utilization of the heating surface. The arc-shaped heating part can be extended in a smaller size, thereby obtaining a higher resistance. The arc-shaped heating part of the heating element 23 can fully concentrate the heat, and combined with the small size brought by the circular or near-circular design, the temperature inside the arc-shaped heating part can be further increased, producing more mist.

[0034] In some embodiments, the heating element 23 is exposed on the surface of the porous body 21 and is directly connected to the atomizing chamber 11. During the suction process, there is enough space for the heating element 23 on the surface of the porous body 21 to generate more mist and store it briefly, thereby significantly increasing the amount of mist.

[0035] In some embodiments, the heating element 23 may include a first heating unit 231, an arc-shaped second heating unit 232, and an arc-shaped third heating unit 233. The first heating unit 231 is disposed on the first end face 211 of the porous body 21 and is used for heating the middle part. The second heating unit 232 and the third heating unit 233 are distributed symmetrically and at intervals on two opposite sides of the first heating unit 231 and are concentric with the first heating unit 231, respectively, for heating the sides. The ends of the second heating unit 232 and the third heating unit 233 on opposite sides of the first heating unit 231 are electrically connected to it.

[0036] The main material of the heating element 23 can be iron-chromium alloy, iron-chromium-aluminum alloy, iron-chromium-nickel alloy, chromium-nickel alloy, titanium alloy, stainless steel alloy, Karma alloy, and other metal alloys. The pattern of the heating element 23 can be obtained by one or more methods such as die stamping, casting, mechanical weaving, chemical etching, ion sputtering, electroplating, and screen printing; the thickness of the metal heating element is 0.01mm-2.00mm, and the width is 0.05mm-3mm. It can be dense metal or porous metal (pore diameter 0.01-1.00mm).

[0037] In some embodiments, the atomizing core 20 can be integrally formed by the heating element 23 and the porous body 21, obtained through debinding and sintering; alternatively, the porous body 21 can be prepared first, followed by the preparation of the metal heating element 23, and then the obtained through debinding and sintering to form a centrally through-hole plate-type heating element. The shapes of the porous body 21 and the heating element 23 are not limited.

[0038] See also Figure 3 In some embodiments, the first heating unit 231 may be annular and may include a central through hole 2310, which is connected to the central channel 215 of the porous body 21.

[0039] The central through hole 2310 enables a direct connection between the atomizing chamber 11 and the mouthpiece. During the suction process, the mist is directly transmitted to the mouthpiece through the central through hole 2310. The airway is simple, which can not only alleviate the condensation of mist in the airway, reduce blockage and leakage, and increase the amount of mist, but also allow the mist to enter the mouth of the sucker directly and quickly, ensuring the sucking experience.

[0040] For example Figure 3As shown, in some embodiments, the second heating unit 232 may include a first heating element 2321, a second heating element 2322, and a third heating element 2323, all of which are generally arc-shaped. The first heating element 2321, the second heating element 2322, and the third heating element 2323 are concentric with the first heating unit 231 and are arranged in parallel intervals. It can be understood that the number of arc-shaped heating elements in the second heating unit 232 is not limited to three; two or more may also be applicable.

[0041] For example Figure 3 As shown, in the second heating unit 232, the length of at least one arc-shaped heating part closer to the central through hole 2310 is less than the length of the at least one arc-shaped heating part farther from the central through hole 2310. In some embodiments, the first heating part 2321, the second heating part 2322, and the third heating part 2323 are sequentially farther away from the central through hole 2310; and the length of the first heating part 2321 is less than the length of the second heating part 2322, and the length of the second heating part 2322 is less than the length of the third heating part 2323. The sequentially increasing length can increase the heating area of ​​the heating part and further increase the amount of smoke.

[0042] For example Figure 3 As shown, in some embodiments, the second heating unit 232 may also include three fourth heating elements 2324 that are generally strip-shaped. Two of the three fourth heating elements 2324 are electrically connected in series with the first heating element 2321, the second heating element 2322, and the third heating element 2323. The two ends of the other of the three fourth heating elements 2324 are electrically connected to the first heating unit 231 and the first heating element 2321, respectively.

[0043] For example Figure 3 As shown, in some embodiments, the third heating unit 233 may include a fifth heating element 2331, a sixth heating element 2332, and a seventh heating element 2333, all of which are generally arc-shaped. The fifth heating element 2331, the sixth heating element 2332, and the seventh heating element 2333 are concentric with the first heating unit 231 and are arranged in parallel intervals. It is understood that the number of arc-shaped heating elements in the third heating unit 233 is not limited to three; two or more may also be applicable.

[0044] For example Figure 3As shown, in the third heating unit 233, the length of at least one of the at least two arc-shaped heating portions closer to the central through hole 2310 is less than the length of the at least one arc-shaped heating portion farther from the central through hole 2310. In some embodiments, the fifth heating portion 2331, the sixth heating portion 2332, and the seventh heating portion 2333 are sequentially farther away from the central through hole 2310; and the length of the fifth heating portion 2331 is less than the length of the sixth heating portion 2332, and the length of the sixth heating portion 2332 is less than the length of the seventh heating portion 2333. This sequentially increasing length increases the heating area of ​​the heating portion, further increasing the amount of smoke.

[0045] For example Figure 3 As shown, in some embodiments, the third heating unit 233 may also include three generally strip-shaped eighth heating elements 2334. Two of the three eighth heating elements 2334 are electrically connected in series with the fifth heating element 2331, the sixth heating element 2332, and the seventh heating element 2333. The two ends of the other of the three eighth heating elements 2324 are electrically connected to the first heating unit 231 and the fifth heating element 2321, respectively.

[0046] For example Figure 2 As shown, one end of one of the three fourth heating elements 2324 and one end of the other of the three eighth heating elements 2334 are respectively connected to the two opposite sides of the first heating unit 231, thereby realizing the electrical connection between the second heating unit 232 and the third heating unit 233 and the first heating unit 231.

[0047] For example ​ and 3 As shown, in some embodiments, the heating element 23 may further include a first electrode connection unit 234 and a second electrode connection unit 235. The first electrode connection unit 234 and the second electrode connection unit 235 are arranged in parallel at intervals on the other two opposite sides of the first heating unit 231, and are respectively connected to the other ends of the third heating part 2323 and the seventh heating part 2333, and are used for electrical connection with a pair of electrodes 30.

[0048] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An atomizing core, comprising a porous body (21) and a heating element (23), the porous body (21) comprising a first end face (211), a second end face (213) opposite to the first end face (211), and a central channel (215) extending from the first end face (211) to the second end face (213); characterized in that, The heating element (23) is generally circular and disposed on the first end face (211), including a first heating unit (231), an arc-shaped second heating unit (232), and an arc-shaped third heating unit (233); the second heating unit (232) and the third heating unit (233) are distributed at intervals on two opposite sides of the first heating unit (231) and share a common center; one end of the second heating unit (232) and the third heating unit (233) are electrically connected to the first heating unit (231); the first heating unit (231) includes a central through hole (2310), and the central channel (215) is connected to the central through hole (2310); The second heating unit (232) and the third heating unit (233) each include at least two arc-shaped heating parts, and the length of at least one arc-shaped heating part closer to the central through hole (2310) is less than the length of at least one arc-shaped heating part farther away from the central through hole (2310). The heating element (23) includes a first electrode connection unit (234) and a second electrode connection unit (235), which are arranged in parallel and spaced apart on opposite sides of the second heating unit (232) and the third heating unit (233).

2. The atomizing core according to claim 1, characterized in that, The second heating unit (232) includes at least two arc-shaped heating parts arranged in parallel and electrically connected in series.

3. The atomizing core according to claim 2, characterized in that, The at least two arc-shaped heating elements include a first heating element (2321), a second heating element (2322), and a third heating element (2323). The first heating element (2321), the second heating element (2322), and the third heating element (2323) are arranged in parallel intervals with the first heating element (231) and share the same center.

4. The atomizing core according to claim 3, characterized in that, The second heating unit (232) further includes a fourth heating part (2324), one end of which is connected to the first heating unit (231), and the other end of which is connected to one end of the first heating part (2321) to realize the electrical connection between the second heating unit (232) and the first heating unit (231).

5. The atomizing core according to any one of claims 1 to 4, characterized in that, The third heating unit (233) includes at least two other arc-shaped heating elements arranged in parallel and electrically connected in series.

6. The atomizing core according to claim 5, characterized in that, The at least two other arc-shaped heating elements include a fifth heating element (2331), a sixth heating element (2332), and a seventh heating element (2333). The fifth heating element (2331), the sixth heating element (2332), and the seventh heating element (2333) are arranged in parallel intervals with the first heating unit (231) and share the same center.

7. The atomizing core according to claim 6, characterized in that, The third heating unit (233) further includes an eighth heating part (2334), one end of which is connected to the first heating unit (231), and the other end of which is connected to one end of the fifth heating part (2331) to realize the electrical connection between the third heating unit (233) and the first heating unit (231).

8. The atomizing core according to claim 1, characterized in that, The first electrode connection unit (234) and the second electrode connection unit (235) are respectively disposed on the other two opposite sides of the first heating unit (231) at intervals, and are respectively connected to the other end of the second heating unit (232) and the third heating unit (233).

9. The atomizing core according to claim 1, characterized in that, The porous body (21) is a ceramic porous body.

10. The atomizing core according to claim 9, characterized in that, The heating element (23) is a heating film formed on the surface of the porous body (21) or a metal heating sheet bonded to the surface of the porous body (21).

11. An atomizer, characterized in that, Includes the atomizing core (20) as described in any one of claims 1 to 10.

12. The atomizer according to claim 11, characterized in that, It also includes a housing; the atomizing core (20) is disposed inside the housing (10); the housing (10) includes an atomizing chamber (11) facing the first end face (211), a liquid storage chamber (13) facing the second end face (213), and an air outlet channel (15) connected to the central channel (215).

13. The atomizer according to claim 12, characterized in that, The atomizing chamber (11) is located at the bottom of the housing (10); the air outlet channel (15) is longitudinally located inside the housing and communicates with the atomizing chamber (11); the liquid storage chamber (13) is located at the upper part of the atomizing core (20) and surrounds the air outlet channel (15).

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