RU2802363C1 - Mesh porous heating and spraying assembly of sheet type and heating sprayer with it - Google Patents

Abstract

FIELD: heating systems.

SUBSTANCE: group of inventions relates to a mesh porous heating-spray unit of a sheet type and a mesh porous heating spray of a sheet type. Mesh porous sheet-type heating-spray unit contains a porous liquid-conducting element configured to absorb and conduct liquid, and a planar sheet electric heating circuit located in the porous liquid-conducting element. Mesh porous sheet-type heating-spray unit contains one or more planar sheet electric heating circuits configured to heat and spray liquid. Through holes for airflow are formed in the porous fluid-conducting element, and the planar sheet electric heating circuit is made in the form of a planar heating grid formed from one or more heating circuits connected in parallel. Through holes for airflow in the porous fluid-conducting element are distributed on one or two sides of the planar sheet electric heating circuit, at least one surface of the inner wall of the through holes for air flow in the porous fluid-conducting element is a flat planar surface. A planar sheet electric heating circuit is inserted into the inner wall of the porous fluid-conducting element, which is located parallel to the flat planar surface of the inner wall of the through holes for the airflow. The distance between the planar sheet electric heating circuit and the flat planar surface of the inner wall is 0–0.5 mm.

EFFECT: inventions provide uniform heating, large spray area and large amount of steam.

22 cl, 39 dwg

Description

Field of technology

[0001] The present invention relates to an atomization device for atomizing liquid into vapor for inhalation by users through microporous heating, and in particular to a mesh porous sheet-type heating-atomization assembly and a heating atomizer therewith.

State of the art

[0002] Currently, there are two typical methods in the art for conducting and heating liquids used in heating-spray units. The first type is a cylindrical porous liquid-conducting element that allows liquid to flow from the outer wall of the cylindrical element, and a spiral or twisted cylindrical mesh heating element is inserted into the inner wall of the cylindrical element. This type of heating and spray assembly mainly has the following problems: large tolerance on the size of the heating element during production, the need to bend or wind the heating element, the effect of the easily deformed and irregularly shaped heating element on the heating efficiency and uniformity, poor reproducibility and low production efficiency heating element. The second type is a heating assembly having a porous material that allows liquid to flow from its top and a flat mesh heating element inserted into the bottom surface of the porous material. A heating unit of this type mainly has the following problems: a small heating area and, therefore, a small volume of evaporation, the possibility of condensation forming when atomized steam comes into contact with the shell, the possibility of separating the heating element from the porous material, and thus the occurrence of dry combustion, affecting feeling of use. These disadvantages are inherent in the known technical solution disclosed in CN 109349680 (publication date 02/19/2019, IPC class A24F 47/00).

[0003] Therefore, the disclosure of the present invention proposes a new technical solution to solve existing technical problems.

Disclosure of the invention

[0004] An object of the present invention is to provide a sheet-type mesh porous heating-spray assembly and a heating sprayer therewith.

[0005] The technical solution adopted in accordance with the disclosure of the present invention is to create a mesh porous sheet-type heating and atomizing assembly containing a porous liquid-conducting element configured to absorb and conduct liquid, and a planar sheet electric heating circuit located in the porous conductive liquid element; wherein the mesh porous sheet-type heating-spray assembly contains one or more planar sheet electric heating circuits configured to heat and spray liquid; the porous liquid-conducting element has one or more through holes for air flow, and the planar sheet electric heating circuit is made in the form of a planar heating grid formed from one or more parallel-connected heating circuits.

[0006] In some other embodiments, a porous fluid-conducting element is provided with one or more through-holes for air flow extending vertically or laterally.

[0007] In some other embodiments, the through-hole for air flow in the porous fluid-conducting element has a straight tubular shape, a tapered shape with a wide top and a narrow bottom, a tapered shape with a narrow top and a wide bottom, a stepped shape with a wide top part and a narrow lower part or a stepped shape with a narrow upper part and a wide lower part.

[0008] In some other embodiments, airflow through holes in the porous fluid-conducting element are distributed on one or both sides of the planar sheet heating circuit.

[0009] In some other embodiments, the through-holes for air flow are distributed in a cross pattern "one left, one right" or in a cross pattern "two left, two right" when they are located on two sides of the same planar sheet heating circuit.

[0010] In some other embodiments, the air flow through holes in the porous fluid conductive element are distributed between two planar sheet electric heating circuits.

[0011] In some other embodiments, at least one surface of the inner wall of the through-holes for air flow in the porous liquid-conducting element is a flat planar surface, a planar sheet electric heating circuit is inserted into the inner wall of the porous liquid-conducting element, which is located approximately parallel to the flat planar the surface of the inner wall of the through holes for air flow, and the distance between the flat sheet electric heating circuit and the flat planar surface of the inner wall is 0-0.5 mm.

[0012] In some other embodiments, the cross-section of the air flow through hole in the porous fluid-conducting element has the shape of a rectangle, square, triangle, trapezoid, semicircle, or ellipse.

[0013] In some other embodiments, the outer contour of the porous fluid-conducting element is in the shape of a rectangle, square, triangle, trapezoid, semicircle, or ellipse.

[0014] In some other embodiments, a plurality of airflow through holes are provided in the porous fluid conductive member, all of the plurality of airflow through holes being the same size or having sizes that are larger in the middle and smaller at two edges thereof.

[0015] In some other embodiments, a plurality of airflow through holes are provided in the porous fluid conductive member, the plurality of airflow through holes being equidistant from each other or distributed densely in the middle and sparsely at two edges thereof.

[0016] In some other embodiments, the planar sheet heating circuit is a planar heating grid formed by cutting, stamping, trimming, or etching a planar electrically conductive sheet material, or a planar heating grid formed by bending an electrically conductive wire, or a planar heating grid formed by stenciling printing or 3D printing with conductive paste.

[0017] In some other embodiments, the planar heating sheet traces are arranged as square wave-shaped traces, and the planar heating sheet circuit comprises one or more square wave heating circuits connected in parallel between two heating sheet electrodes.

[0018] In some other embodiments, the planar sheet heating circuit tracks are arranged as W-shaped traces, and the planar heating sheet heating circuit includes one or more W-shaped heating circuits connected in parallel between two electrodes.

[0019] In some other embodiments, the planar sheet heating circuit is a grid heating circuit with circular holes, the circular grid holes arranged in a matrix or staggered pattern.

[0020] In some other embodiments, the planar sheet heating circuit is a grid heating circuit with square shaped openings, wherein the matrix grid is a square shaped matrix grid.

[0021] In some other embodiments, the planar sheet electric heating circuit is a single S-shaped winding track with a winding direction along its length direction or width direction; the convolutions are equidistant from each other or distributed densely in the middle and sparsely on its two edges, or distributed sparsely in the middle and densely on its two edges.

[0022] In some other embodiments, the planar sheet electric heating circuit of a mesh porous sheet-type heating and atomizing assembly is a single square-shaped helical circuit.

[0023] In some other embodiments, two ends of the planar sheet electric heating circuit are provided with two electrical connecting parts, respectively, and each electrical connecting part extends from an outer wall of the porous liquid-conducting member; The electrical connection parts are wire lead electrodes or plate contact electrodes.

[0024] The disclosure of the present invention also provides a mesh porous sheet-type heating atomizer comprising a mesh porous sheet-type heating-atomizer assembly.

[0025] In some other embodiments, the mesh porous sheet-type heating atomizer assembly includes a base and an oil reservoir, the mesh porous sheet-type heating-atomizer assembly is located in the oil reservoir, and the base is located on the opening of the oil reservoir and delimits the mesh porous sheet-type heating and atomizer assembly. so that it is inside the oil reservoir; a first electrode and a second electrode are disposed on the base, and contact ends of the first electrode and the second electrode extend into the oil reservoir and are electrically connected to two ends of the planar sheet electric heating circuit, respectively.

[0026] In some other embodiments, an air inlet is formed in the base, the air inlet being in communication with a space in which the planar sheet electric heating circuit is located; an air outlet channel is formed in the oil reservoir, the air outlet channel communicating with the space in which the planar sheet electric heating circuit is located.

[0027] In some other embodiments, electrode mounting holes are formed in the base, the first electrode and the second electrode being respectively located in the electrode mounting holes.

[0028] In some other embodiments, the mesh porous sheet-type heating atomizer assembly also includes a silicone oil lock mounted on the top surface and side of the mesh porous sheet-type heating atomizer assembly, and the outer side wall of the silicone oil lock is sealed with the inner wall of the oil reservoir. .

[0029] Advantageous Effects of the Disclosure of the Present Invention: The advantages of the sheet-type mesh porous heating and atomizing assembly and the heating atomizer therewith proposed in the disclosure of the present invention are to promote mass production, realize uniform heating, and have a large atomization area and a large amount of steam; The product has a simple structure, which is beneficial for assembly, and good reproducibility of the atomization effect, and solves the problems of poor reproducibility of liquid-conducting material, poor adjustment of the volume of injected oil, lack of control of the heating power of each of the required areas in the traditional heating element, inconsistent matching of the heating area and the air channel flow, heating unnecessary areas, low efficiency of liquid atomization using thermal energy converted from electrical energy of the traditional heating element, etc. The disclosure of the invention provides a simple design structure, fewer components, high structural strength of each component and low susceptibility to deformation during the assembly process, so that the finished product is highly reproducible, promotes automated production and improves production efficiency.

Brief description of drawings

[0030] The disclosure of the present invention will be described in more detail below in connection with embodiments and the accompanying drawings, in which:

[0031] in FIG. 1 is a schematic diagram of a sheet-type mesh porous heating-spray assembly according to an embodiment of the disclosure of the present invention;

[0032] in FIG. 2 is an exploded view of the sheet-type mesh porous heating-spray assembly shown in FIG. 1;

[0033] in FIG. 3 is a cross-sectional view of the sheet-type mesh porous heating-spray assembly shown in FIG. 1;

[0034] in FIG. 4 illustrates another arrangement of air flow through holes in the first alternative sheet-type mesh porous heating-spray assembly shown in FIG. 3;

[0035] in FIG. 5 illustrates another arrangement of through-holes for air flow in the second alternative solution of the mesh porous sheet-type heating and atomizing assembly shown in FIG. 3;

[0036] in FIG. 6 shows a schematic diagram of the relative position of the through holes for air flow and the planar sheet electric heating circuit of the mesh porous sheet-type heating and spray assembly shown in FIG. 3;

[0037] in FIG. 7 is a schematic diagram of a first alternative solution for the relationship between the through-holes for air flow and the planar sheet electric heating circuit of the mesh porous sheet-type heating and atomizing assembly shown in FIG. 6;

[0038] in FIG. 8 is a schematic diagram of a second alternative solution for the relative positioning of the through-holes for air flow and the planar sheet electric heating circuit of the mesh porous sheet-type heating and atomizing assembly shown in FIG. 6;

[0039] in FIG. 9 is a schematic diagram of a first alternative solution for the shape of the air flow through holes and the position of the planar sheet heating circuit shown in FIG. 3;

[0040] in FIG. 10 is a schematic diagram of a second alternative solution for the shape of the air flow through holes and the position of the planar sheet heating circuit shown in FIG. 3;

[0041] in FIG. 11 is a schematic diagram of a third alternative solution for the shape of the air flow through holes and the position of the planar sheet heating circuit shown in FIG. 3;

[0042] in FIG. 12 is a schematic diagram of a fourth alternative solution for the shape of the air flow through holes and the position of the planar sheet heating circuit shown in FIG. 3;

[0043] in FIG. 13 is a schematic diagram of a first alternative solution for the planar surface of the inner wall of the air flow through holes and the position of the planar sheet electric heating circuit shown in FIG. 3;

[0044] in FIG. 14 is a schematic diagram of a second alternative solution for the planar surface of the inner wall of the air flow through hole and the position of the planar sheet electric heating circuit shown in FIG. 3;

[0045] in FIG. 15 is a schematic diagram of a wire connection method for the sheet-type mesh porous heating-spray assembly shown in FIG. 1;

[0046] in FIG. 16 is a schematic diagram of the contact connection method for the electrode of the sheet-type mesh porous heating-spray assembly shown in FIG. 1;

[0047] in FIG. 17 is a schematic diagram of the circuit path and heating principle of the planar sheet electric heating circuit shown in FIG. 2;

[0048] in FIG. 18 is a schematic diagram of a first alternative solution for the circuit path and heating principle of the planar sheet heating circuit shown in FIG. 2;

[0049] in FIG. 19 is a schematic diagram of a second alternative solution for the circuit path and heating principle of the planar sheet heating circuit shown in FIG. 2;

[0050] in FIG. 20 is a schematic diagram of a third alternative solution for the circuit path and heating principle of the planar sheet heating circuit shown in FIG. 2;

[0051] in FIG. 21 is a schematic diagram of a fourth alternative solution for the circuit path and heating principle of the planar sheet heating circuit shown in FIG. 2;

[0052] in FIG. 22 is a schematic diagram of a fifth alternative solution for the circuit path and heating principle of the planar sheet heating circuit shown in FIG. 2;

[0053] in FIG. 23 is a schematic diagram of a sixth alternative solution for the circuit path and heating principle of the planar sheet heating circuit shown in FIG. 2;

[0054] in FIG. 24 shows the principle of the seventh alternative solution for the circuit path and heating principle of the planar sheet electric heating circuit shown in FIG. 2;

[0055] in FIG. 25 is a schematic diagram of the dimensions of the air flow through holes shown in FIG. 3, and the distances between them;

[0056] in FIG. 26 is a schematic diagram of a first alternative solution for the dimensions of the airflow through holes shown in FIG. 3, and the distances between them;

[0057] in FIG. 27 is a schematic diagram of a second alternative solution for the airflow through hole sizes shown in FIG. 3, and the distances between them;

[0058] in FIG. 28 is a schematic diagram of the directions of through-holes for air flow in the mesh porous sheet-type heating and atomizing assembly shown in FIG. 1;

[0059] in FIG. 29 is a schematic diagram of a first alternative solution for the directions of the through-holes for air flow in the mesh porous sheet-type heating and atomizing assembly shown in FIG. 1;

[0060] in FIG. 30 is a three-dimensional exploded view of the sheet-type mesh porous heating atomizer;

[0061] in FIG. 31 is a sectional view and a view in the air flow direction of a front view of the sheet-type mesh porous heating atomizer;

[0062] in FIG. 32 is a side cross-sectional view of a sheet-type mesh porous heating atomizer;

[0063] in FIG. 33 is a three-dimensional partial sectional view of a sheet-type mesh porous heating atomizer;

[0064] in FIG. 34 is a front view of the internal shapes of the air flow through holes shown in FIG. 1;

[0065] in FIG. 35 is a front view of a first alternative solution for the internal shapes of the airflow through holes shown in FIG. 1;

[0066] in FIG. 36 is a front view of a second alternative solution for the internal shapes of the airflow through holes shown in FIG. 1;

[0067] in FIG. 37 is a front view of a third alternative solution for the internal shapes of the airflow through holes shown in FIG. 1;

[0068] in FIG. 38 is a front view of a fourth alternative solution for the internal shapes of the airflow through holes shown in FIG. 1;

[0069] in FIG. Figure 39 shows a schematic diagram of the base.

Carrying out the invention

[0070] To better understand the technical features, objects and effects of the disclosure of the present invention, specific embodiments of the disclosure of the present invention will now be described in detail with reference to the accompanying drawings. It is understood that the described embodiments are merely part of the embodiments of the disclosure of the present invention and not all embodiments. All other embodiments obtained by those skilled in the art based on these embodiments of the disclosure of the present invention without creative work fall within the scope of protection of the disclosure of the present invention.

[0071] As shown in FIG. 1 - FIG. 39, the disclosure of the present invention provides a mesh porous sheet-type heating-spray assembly comprising a porous liquid-conducting element 1 configured to absorb and conduct liquid, and a planar sheet electric heating circuit 2 located in the porous liquid-conducting element 1. Porous heating-spray The sheet type assembly may be provided with one or more sheets of planar sheet electric heating circuit 2. The planar sheet electric heating circuit 2 is used for heating and atomizing liquid. One or more through holes 11 for air flow are formed in the porous liquid-conducting element 1. Planar sheet electric heating circuit 2 is a planar heating grid consisting of one or more heating circuits connected in parallel. The porous liquid-conducting element 1 is provided with one or more through holes 11 for air flow extending vertically or laterally. The air flow through hole 11 in the porous liquid conducting member 1 may have a straight tubular shape, a tapered shape with a wide top and a narrow bottom, a tapered shape with a narrow top and a wide bottom, a stepped shape with a wide top and a narrow bottom. or a stepped shape with a narrow upper part and a wide lower part. The air flow through holes 11 in the porous liquid conductive member 1 are distributed on one or both sides of the planar sheet electric heating circuit 2. When the air flow through holes 11 in the porous liquid conductive member 1 are distributed on both sides of the planar sheet electric heating circuit 2, they can be distributed in a cross order "one on the left, one on the right" or in a cross order "two on the left, two on the right". The air flow through holes 11 in the porous liquid-conducting element 1 are distributed between two planar sheet electric heating circuits 2. At least one surface of the inner wall surfaces of the air flow through holes 11 in the porous liquid-conducting element 1 is a flat planar surface. The planar sheet electric heating circuit 2 is inserted into the inner wall of the porous liquid-conducting element 1 and is approximately parallel to the flat planar surface of the inner wall of the through holes 11 for air flow. The distance between the planar sheet electric heating circuit 2 and the flat planar surface of the inner wall is 0-0.5 mm. The cross-section of the through hole 11 for air flow in the porous liquid-conducting element 1 may be in the shape of a rectangle, square, triangle, trapezoid, semicircle or ellipse. The outer contour of the porous liquid-conducting element 1 may have the shape of a rectangle, square, triangle, trapezoid, semicircle or ellipse. When a plurality of air flow through holes 11 are provided in the porous liquid conducting member 1, the plurality of air flow through holes 11 may all have the same size or may have sizes that are larger in the middle and smaller at two edges. When a plurality of air flow through holes 11 are provided in the porous liquid conducting member 1, the plurality of air flow through holes 11 may be equidistant from each other or may be distributed densely in the middle and sparsely at two edges. The planar sheet electric heating circuit 2 is a planar heating mesh formed by cutting, stamping, trimming or etching a planar electrically conductive sheet material, a planar heating mesh formed by bending electrically conductive wires, or a planar heating mesh formed by screen printing or 3D printing with conductive paste. The tracks of the planar sheet electric heating circuit 2 may be configured as square wave-shaped tracks, and one or more square wave-shaped heating circuits connected in parallel may be provided between two electrodes of the heating sheet. The tracks of the planar sheet electric heating circuit 2 can be made in the form of W-shaped tracks, and one or more heating tracks of the circuit in the form of W-shaped tracks connected in parallel can be provided between two electrodes. Planar sheet electric heating circuit 2 is a mesh heating circuit with round holes, the round holes of the mesh being arranged in a matrix or in a checkerboard pattern. The planar sheet electric heating circuit 2 may be a mesh heating circuit with square-shaped openings, the mesh openings being arranged in the form of square-shaped matrix grids. The planar sheet electric heating circuit 2 is one S-shaped winding path, the direction of the winding being along its length direction or width direction; the convolutions may be equidistant from each other, or may be distributed densely in the middle and sparsely on its two edges, or may be distributed sparsely in the middle and densely on its two edges. Planar sheet electric heating circuit 2 can be in the form of one spiral track of a square-shaped circuit. The two ends of the planar sheet electric heating circuit 2 are respectively provided with two electrical connecting parts. Each electrical connecting part extends from the outer wall of the porous liquid-conducting member 1. The electrical connecting parts may be wire lead electrodes or plate contact electrodes.

[0072] As shown in FIG. 30-33, the disclosure of the present invention also provides a sheet-type mesh porous heating atomizer comprising a sheet-type mesh porous heating-atomizer assembly 3. The sheet-type mesh porous heating sprayer also includes a base 4 and an oil reservoir 5. The sheet-type mesh porous heating and spray assembly 3 is installed in the oil tank 5. The base 4 is located on the opening of the oil tank 5 and limits the sheet-type mesh porous heating and spray assembly 3 so so that it is located in the oil reservoir 5. A first electrode 61 and a second electrode 62 are located on the base 4. The contact ends of the first electrode 61 and the second electrode 62 extend into the oil reservoir 5 and are electrically connected to the two ends of the planar sheet heating circuit 2, respectively. An air inlet hole 41 is provided in the base 4. The air inlet hole 41 communicates with the space in which the planar sheet electric heating circuit 2 is located. An air outlet channel 51 is formed in the oil reservoir 5. The air outlet channel 51 communicates with the space in which the planar sheet electric heating circuit 2 is located. B The base 4 is formed with mounting holes 42 for electrodes. The first electrode 61 and the second electrode 62 are respectively located in the electrode mounting holes 42. The sheet type porous heating atomizer also includes a silicone oil lock 7. The silicone oil lock 7 is put on the top surface and side of the mesh sheet type porous heating atomizer assembly 3. The outer side wall of the silicone oil lock 7 is sealed with the inner wall of the oil reservoir 5.

[0073] In FIG. 1 and FIG. 2 shows a sheet-type mesh porous heating-spray assembly 3 according to some embodiments of the disclosure of the present invention. The heating and atomizing unit can be used in an atomizer for heating and atomizing liquid, and includes a porous liquid-conducting element 1 used for conducting liquid, and a planar sheet electric heating circuit 2 for heating and atomizing liquid. The planar sheet electric heating circuit 2 is a planar sheet heating sheet consisting of one or more heating circuits. The advantage of planar sheet electric heating circuit 2 is faster heating, uniform heating, high thermal efficiency, etc. One or more through holes 11 for air flow are formed in the porous liquid-conducting element 1. The surface of the inner wall of the airflow through hole 11 is a flat planar surface and is approximately parallel to the planar sheet electric heating circuit 2. When the planar sheet electric heating circuit 2 begins to heat, the heat will atomize the liquid into steam, which will be transferred outward through the airflow through holes 11 .

[0074] In FIG. 3 - FIG. 5 shows schematic diagrams of arrangements of airflow through holes 11 inside the porous liquid-conducting member 1 when the porous liquid-conducting member 1 is provided with a plurality of airflow through-holes 11 in accordance with the disclosure of the present invention. When a plurality of air flow through holes 11 are provided, the location of the air flow through holes 11 can be selected depending on the position and size of the liquid inlet hole in the silicone. When the heating area is relatively large, the air flow through holes 11 can be divided into a plurality of groups in the porous liquid conducting member 1. When the air flow through hole 11 is relatively small in size, the air flow through holes 11 can be preferably distributed on one side planar sheet electric heating circuit 2 (as shown in FIG. 4). In this way, the liquid inlet holes can be located on one side, which can save space for the atomizer. When the heating area is relatively large and the thickness of the planar sheet electric heating circuit 2 is relatively small, for example, less than 0.08 mm, the air flow through holes 11 are distributed on both sides of the planar sheet electric heating circuit 2 (as shown in FIG. 3) to prevent deformation. planar sheet electric heating circuit 2 in the porous liquid-conducting member 1. Thus, the through-holes 11 for air flow located on both sides can fix the planar sheet electric heating circuit 2 during manufacturing and production, which prevents deformation causing uneven heating and leading to poor spray effect.

[0075] In FIG. 6 - FIG. 8 shows schematic diagrams of the relative positions of the through holes 11 for air flow and the planar sheet electric heating circuit 2 in accordance with the disclosure of the present invention. Depending on the position distribution of the liquid inlet holes in the silicone, the distribution of the air flow through holes 11 will change accordingly. When the liquid inlet holes in the silicone are on one side, the through holes 11 for air flow are located on the other side of the heating sheet (FIG. 7). When the liquid inlet holes in the silicone are on both sides, the through holes 11 for air flow are located on both sides of the heating sheet (FIG. 6). When the demand for warm and atomized steam is high, two planar sheet electric heating circuits 2 can be preferably used to increase atomization, and through-holes 11 for air flow are located between the two heating sheets.

[0076] In FIG. 13 - FIG. 14 shows schematic diagrams of the relationship of distances between the planar sheet electric heating circuit 2 and the flat planar surface of the inner wall of the air flow through hole 11 in accordance with the disclosure of the present invention. In some practical cases, the atomization effect is best and the atomization thermal efficiency is relatively high when the plane of the planar sheet electric heating circuit 2 is at the same level with the flat planar surface of the inner wall of the air flow through hole 11, but between the planar sheet electric heating circuit 2 and the porous liquid-conducting element 1 there will be gaps, which will lead to problems such as dry combustion due to insufficient oil supply. When the planar sheet electric heating circuit 2 is recessed into the porous liquid-conducting member 1 and is far from the flat planar surface of the inner wall of the airflow through hole, heat must be conducted through the porous liquid-conducting member 1 to the inner wall of the airflow through hole to produce atomized steam. , which will lead to low thermal efficiency, low atomized steam volume, high heat loss and other problems. The distance between the planar sheet electric heating circuit 2 and the flat planar inner surface of the wall of the through hole 11 for air flow is preferably 0-0.5 mm. The most suitable distance can be selected according to comprehensive factors such as structural strength, thickness and strength of the planar sheet electric heating circuit 2, etc.

[0077] In FIG. 17 - FIG. 24 shows several different shapes of a planar sheet heating circuit 2 in accordance with the disclosure of the present invention. In some embodiments, the direction of passage of the heating circuit and the order of the grid connections can be selected depending on the power output of the circuit in combination with the required heating areas. In some high power, large heating area applications, it is preferable to use a mesh or lattice type planar sheet heating circuit 2 shown in FIG. 19, FIG. 20 and FIG. 21. Planar sheet electric heating circuit 2 of this type is made in the form of a plurality of heating tracks connected in parallel, which provides a lower resistance value, a large cross-sectional area of the circuit, uniform heating and high energy intensity. In some low power applications, it is preferable to use a single tortuous heating circuit, as shown in FIG. 22, FIG. 23 and FIG. 24. Planar sheet electric heating circuit 2 of this type is made in the form of a single heating track with a high resistance value, a small cross-sectional area of the circuit and low energy intensity.

[0078] In some embodiments, if the dimensions of the air flow through holes 11 exactly match the suction volume during suction, the planar sheet electric heating circuit 2 is heated evenly. Here, when multiple air flow through holes 11 are provided, the air flow through holes 11 can be preferably distributed as shown in FIG. 25, in which the air flow holes are the same size and evenly distributed.

[0079] In some embodiments, the planar sheet electric heating circuit 2 exhibits fast heat release in the middle portion and slow heat release at two edges due to the principle of thermal radiation. Thus, the through holes 11 for air flow can be preferably distributed as shown in FIG. 26, on which holes for a large volume of air flow are distributed in the middle part, and small volumes on the two edges.

[0080] In some embodiments, to maximize the thermal efficiency of a porous heating-spray assembly, the spray area must be maximized while maintaining strength. Since the heat in the middle is slightly higher than the two edges, the through-holes 11 for air flow can be distributed preferentially in accordance with FIG. 27, in which the through holes 11 for air flow are located densely in the middle and sparsely at two edges.

[0081] In some embodiments, given the overall design of the atomizer, the air flow through holes 11 extend vertically, as shown in FIG. 28. The advantage of this design is that the atomized stream has a shorter path in the atomizer, the atomized stream has less contact with the inner wall of the air flow channel in the atomizer, resulting in less condensation being formed. In some embodiments, when the power is relatively high, the spray stream temperature is relatively high, or some special air inlet structure is provided, the air flow through holes 11 may be preferably selected as transverse air flow through holes 11 as shown in FIG. 29, in which the air flow enters from one side and exits from the other side.

[0082] In some embodiments, the airflow through holes 11 preferably extend vertically and may have a straight tubular shape, as shown in FIG. 34, so that the air flow path can maximize the exposure space of the planar sheet electric heating circuit in the air flow through holes 11, increasing the atomization area and achieving the highest heat utilization rate. However, in some designs where the airflow through holes 11 have large areas and thus the atomized vapor is more dispersed, the airflow through hole 11 may be cone-shaped with a narrow upper portion and a wide lower portion, as shown in FIG. 35. Thus, the through-holes 11 for air flow can effectively accumulate atomized steam, making the atomized steam more concentrated and completely atomized.

[0083] In some embodiments, as shown in the front view of FIG. 36, as a second alternative to the airflow through hole 11, the airflow through hole 11 has a stepped shape with a narrow upper portion and a wide lower portion. The through air flow hole 11 with this structure can also solve the problem of dispersion of the spray flow while maximizing the spray area so that the spray flow is more concentrated and complete. Experimentally, it is actually confirmed that this structure can better solve the problem of atomized vapor dispersion, making the atomized vapor more dense and complete.

[0084] In some embodiments, as shown in the front view of FIG. 37, as a third alternative to the airflow through hole 11, the airflow through hole 11 has a cone-shaped shape with a wide upper portion and a narrow lower portion. The main purpose of such a structure is to solve the problem of liquid leakage caused by falling due to gravity when some thinner liquid stream is directed to the inner wall of the air flow through holes 11, or the problem of poor use feeling caused by unsprayed liquid moving upward with the air flow into the user's mouth due to the atomized liquid being carried upward by the air flow when the user applies a relatively large suction force. The airflow through passage with a wide upper portion and a narrow lower portion can effectively solve the above-mentioned problems, so that the force of the airflow on the liquid in the inner wall of the airflow through holes 11 during the user's inhalation is reduced. A stepped airflow passage with a wide upper portion and a narrow lower portion shown in FIG. 38, when actually implemented, can effectively solve the problem of liquid leaking into the user's mouth and being absorbed. The advantage of this structure is that it reduces air flow while maintaining a constant spray area, which increases thermal efficiency, provides a diffused steam effect and improves the feel of use.

[0085] In FIG. 30 is a three-dimensional schematic diagram of an atomizer in accordance with some embodiments. In this embodiment, the atomizer can be assembled using the following steps:

[0086] step (1): inserting the porous liquid-conducting and heating assembly into the silicone oil lock 7;

[0087] step (2): installing the silicone oil lock 7 on the base 4, with two electrodes connecting the wires of the porous heating unit passing through the electrode mounting holes 42 of the base 4, respectively;

[0088] step (3): pressing two electrode posts 6 into the mounting holes 42 for the electrodes of the base 4:

[0089] step (4): filling the oil reservoir 5 with liquid and installing the assembled base 4 and silicone into the oil reservoir 5.

[0090] There are fewer parts and components in this assembly method. Assembly is very convenient and fast and allows for automated assembly.

[0091] In FIG. Figure 31 shows a schematic diagram of the operating principle and direction of the air flow of the atomizer. When the user inhales through the air outlet 51 of the oil reservoir 5, the air supply switch is activated, the two ends of the electrodes are energized, and the planar sheet electric heating circuit 2 generates heat, which heats and atomizes near the planar sheet electric heating circuit 2 the liquid conducted from the oil reservoir 5 to the porous liquid-conducting element 1 through the liquid inlet hole in the silicone into the atomized steam. The air entering through the air inlet of the base 4 passes through the planar sheet electric heating circuit 2 of the porous liquid-conducting heating and atomizing assembly, carrying the atomized steam into the stream exiting the air outlet 51 of the oil reservoir 5.

[0092] In some embodiments of the disclosure of the present invention, the through holes 11 for air flow in the porous liquid-conducting element 1, the shape and position of the planar sheet heating circuit 2, the mesh structure, and corresponding application scenarios of the planar sheet heating circuit 2 are clearly described. The above embodiments illustrate the differences between them, advantages and disadvantages and can be used to replace and in combination with each other.

[0093] Advantageous Effects of the Disclosure of the Present Invention: The disclosure of the present invention provides a sheet-type mesh porous heating and atomizing assembly, which is advantageous for mass production, uniform heating, large atomizing area and large evaporation amount, as well as a heating atomizer using the same; The product has a simple structure, which is beneficial for assembly, and good reproducibility of the atomization effect, and solves the problems of poor reproducibility of liquid conductive material, poor adjustment of the volume of injected oil, lack of control of the heating power of each of the required areas in the traditional heating element, inconsistent matching of the heating area and the air channel flow, incorrect heating areas, low efficiency of liquid atomization using thermal energy converted from electrical energy of a traditional heating element, etc. The invention has a simple structure structure, fewer components, high structural strength of each component, and is not easily deformed during the assembly process. Consequently, the manufactured end product is highly reproducible, promotes automated production and improves production efficiency.

[0094] Preferred embodiments of the present invention have been described in detail above, but the disclosure is not limited to the embodiments shown. Various equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the disclosure of the present invention. All such equivalent modifications or substitutions are included within the scope of the claims of this application.

Claims (24)

1. A mesh porous sheet-type heating-spray assembly containing a porous liquid-conducting element (1) configured to absorb and conduct liquid, and a planar sheet electric heating circuit (2) located in the porous liquid-conducting element (1); wherein the mesh porous sheet-type heating-spray assembly contains one or more planar sheet electric heating circuits (2) configured to heat and spray liquid; in the porous liquid-conducting element (1) through holes (11) are formed for air flow, and the planar sheet electric heating circuit (2) is made in the form of a planar heating grid formed from one or more parallel-connected heating circuits, characterized in that through holes (11) for air flow in the porous liquid-conducting element (1) are distributed on one or two sides of the planar sheet electric heating circuit (2), at least one surface of the inner wall of the through holes (11) for air flow in the porous liquid-conducting element (1) is a flat planar surface; a planar sheet electric heating circuit (2) is inserted into the inner wall of the porous liquid-conducting element (1), which is located parallel to the flat planar surface of the inner wall of the through holes (11) for air flow, and the distance between the planar sheet electric heating circuit (2) and the flat planar surface of the inner wall is 0–0.5 mm. 2. A mesh porous sheet-type heating-spray assembly according to claim 1, in which the porous liquid-conducting element (1) is provided with through holes (11) for air flow running vertically or laterally. 3. The mesh porous sheet-type heating and spray assembly according to claim 1, wherein the through hole (11) for air flow in the porous liquid-conducting element (1) has a straight tubular shape, a tapered shape with a wide upper part and a narrow lower part, tapered a shape with a narrow top and a wide bottom, a stepped shape with a wide top and a narrow bottom, or a stepped shape with a narrow top and a wide bottom. 4. The sheet-type mesh porous heating and spray assembly according to claim 1, in which the through holes (11) for air flow are distributed in a cross pattern of “one left, one right” or in a cross pattern “two left, two right” when they located on both sides of one planar sheet electric heating circuit (2). 5. Mesh porous sheet-type heating-spray assembly according to claim 1, in which through holes (11) for air flow in the porous liquid-conducting element (1) are distributed between two planar sheet electric heating circuits (2). 6. A mesh porous sheet-type heating and spray assembly according to claim 1, in which the cross-section of the through hole (11) for air flow in the porous liquid-conducting element (1) has the shape of a rectangle, square, triangle, trapezoid, semicircle or ellipse. 7. A sheet-type mesh porous heating-spray assembly according to claim 1, in which the outer contour of the porous liquid-conducting element (1) has the shape of a rectangle, square, triangle, trapezoid, semicircle or ellipse. 8. A sheet-type mesh porous heating-spray assembly according to claim 1, wherein the porous liquid-conducting element (1) is provided with a plurality of through holes (11) for air flow, and all of the plurality of through holes (11) for air flow have the same size or have dimensions that are larger in the middle and smaller at its two edges. 9. A mesh porous sheet-type heating and spray assembly according to claim 1, in which a plurality of through holes (11) for air flow are provided in the porous liquid-conducting element (1), and the plurality of through holes (11) for air flow are equidistant from each other or distributed densely in the middle and sparsely at its two edges. 10. The sheet-type mesh porous heating-spray assembly according to claim 1, wherein the planar sheet electric heating circuit (2) is a planar heating mesh formed by cutting, stamping, trimming or etching a planar electrically conductive sheet material, or a planar heating mesh formed by by bending electrically conductive wire, or a planar heating mesh formed by screen printing or 3D printing with conductive paste. 11. A mesh porous sheet-type heating-spray assembly according to claim 1, in which the tracks of the planar sheet electric heating circuit (2) are arranged in the form of square wave tracks, and the planar sheet electric heating circuit (2) contains one or more heating circuits in the form of a square wave , connected in parallel between two electrodes of the heating sheet. 12. Mesh porous sheet-type heating-spray assembly according to claim 1, in which the tracks of the planar sheet electric heating circuit (2) are arranged in the form of W-shaped tracks, and the planar sheet electric heating circuit (2) contains one or more W-shaped heating circuits , connected in parallel between two electrodes. 13. Mesh porous sheet-type heating-spray assembly according to claim 1, in which the planar sheet electric heating circuit (2) is a mesh heating circuit with round holes, and the round holes of the mesh are arranged in a matrix or in a checkerboard pattern. 14. The sheet-type mesh porous heating-spray assembly according to claim 1, wherein the planar sheet electric heating circuit (2) is a mesh heating circuit with square-shaped holes, and the matrix mesh grid is a square-shaped matrix grid. 15. The mesh porous sheet-type heating-spray assembly according to claim 1, wherein the planar sheet electric heating circuit (2) is one S-shaped winding path with the direction of the meander along its length direction or width direction; the convolutions are equidistant from each other or distributed densely in the middle and sparsely on its two edges, or distributed sparsely in the middle and densely on its two edges. 16. Mesh porous sheet-type heating-spray assembly according to claim 1, in which the planar sheet electric heating circuit (2) is a single square-shaped spiral circuit. 17. The mesh porous sheet-type heating-spray assembly according to claim 1, wherein two ends of the planar sheet electric heating circuit (2) are provided with two electrical connecting parts, respectively, and each electrical connecting part extends from the outer wall of the porous liquid-conducting element (1); The electrical connection parts are wire lead electrodes or plate contact electrodes. 18. Mesh porous sheet-type heating atomizer, characterized by the presence of a mesh porous sheet-type heating-spray unit (3) according to any one of claims. 1–17. 19. The sheet-type mesh porous heating atomizer assembly according to claim 18, which also comprises a base (4) and an oil reservoir (5), wherein the sheet-type mesh porous heating-atomizer assembly (3) is located in the oil reservoir (5), and the base ( 4) located on the opening of the oil reservoir (5) and limits the mesh porous heating-spray assembly (3) of the sheet type so that it is located inside the oil reservoir (5); on the base (4) the first electrode (61) and the second electrode (62) are located, and the contact ends of the first electrode (61) and the second electrode (62) extend into the oil reservoir (5) and are electrically connected to the two ends of the planar sheet electric heating circuit ( 2), respectively. 20. The mesh porous sheet-type heating atomizer according to claim 19, in which an air inlet hole (41) is formed in the base (4), and the air inlet hole (41) communicates with the space in which the planar sheet electric heating circuit (2) is located; an air outlet channel (51) is formed in the oil reservoir (5), wherein the air outlet channel (51) communicates with the space in which the planar sheet electric heating circuit (2) is located. 21. The sheet-type mesh porous heating atomizer according to claim 19, wherein mounting holes (42) for electrodes are formed in the base (4), the first electrode (61) and the second electrode (62) are respectively located in the mounting holes (42) for electrodes. 22. The sheet-type mesh porous heating atomizer according to claim 19, wherein the sheet-type mesh porous heating atomizer also includes a silicone oil lock (7) placed on the upper surface and side of the sheet-type mesh porous heating-atomizer assembly (3), and the outer The side wall of the silicone oil lock (7) is tightly connected to the inner wall of the oil reservoir (5).