Heater and heating atomization device

Abstract

The present invention relates to a heater and a heating atomization device, wherein the heater comprises: a nozzle, which is provided with an air inhalation channel and an atomization chamber, wherein the air inhalation channel is directly connected with the atomization chamber and the outside world. And a heating sheet, which is in a sheet-like structure and has an atomization surface for atomizing an aerosol-generating matrix to form an aerosol, wherein at least part of the atomization surface is located in the atomization chamber, and the central axis of the atomization chamber is parallel to the atomization surface or located in the atomization surface. In this way, the eddy current generated by the turbulence of the aerosol can be reduced, and the aerosol will flow closer to the central axis of the atomization chamber, thereby reducing the contact with the atomization chamber and the inner wall surface of the entire air inhalation channel, and finally reducing the aerosol loss.

Description

Technical Field

[0001] The present invention relates to the field of atomization technology, and in particular to a heater and a heating atomization device comprising the heater. Background Art

[0002] Electronic atomization devices can atomize tobacco products by heating without burning them, thereby forming smoke (aerosol) that can be inhaled. Compared with smoke produced by direct combustion of tobacco, the smoke produced by this heating without burning method contains significantly fewer harmful substances, which can reduce damage to the health of users. At the same time, electronic atomization devices can also be used in the medical field, that is, electronic atomization devices can atomize drugs to form gas and / or aerosol, and patients inhale the gas and / or aerosol through breathing to deposit it in the lungs, thereby achieving the purpose of painless, rapid and effective treatment.

[0003] The above-mentioned substances capable of generating gas and / or aerosol are collectively referred to as aerosol generating substrates. The electronic atomization device usually atomizes the aerosol generating substrate through a heating component. For a traditional electronic atomization device, during the user's inhalation process, part of the aerosol will adhere to the heating component and cannot be absorbed by the user, resulting in the loss of aerosol. Summary of the invention

[0004] A technical problem solved by the present invention is how to reduce the loss of aerosol.

[0005] A heater, comprising:

[0006] A nozzle is provided with an air inhalation channel and an atomization chamber, wherein the air inhalation channel is directly connected to the atomization chamber and the outside; and

[0007] The heating sheet is in a sheet-like structure and has an atomizing surface for atomizing an aerosol-generating matrix to form an aerosol. At least part of the atomizing surface is located in the atomizing cavity. The central axis of the atomizing cavity is parallel to the atomizing surface or located in the atomizing surface.

[0008] In one embodiment, the air intake channel is coaxially arranged with the atomization chamber, the caliber of the atomization chamber remains constant in its axial direction, and the air intake channel includes a guide chamber directly connected to the atomization chamber, and the caliber of the guide chamber gradually decreases in its axial direction along the direction from the atomization chamber to the guide chamber.

[0009] In one embodiment, the maximum diameter of the guide cavity is greater than or equal to the diameter of the atomization cavity.

[0010] In one embodiment, the air inhalation channel further comprises an air inhalation cavity, which directly connects the guide cavity and the outside, and the caliber of the air inhalation cavity gradually increases or remains constant in the axial direction along the direction from the atomization cavity to the guide cavity.

[0011] In one of the embodiments, it also includes a fixing seat located in the suction nozzle, the heating plate is connected to the fixing seat, the suction nozzle is also provided with an air intake channel directly connected to the outside, and the fixing seat is provided with an air guide channel simultaneously connected to the atomization chamber and the air intake channel, and the external gas enters the air intake channel through the air intake channel, the air guide channel and the atomization chamber in sequence.

[0012] In one embodiment, the air guide channel includes a first air guide hole that passes through the fixing seat and is located in the atomization chamber, and the central axis of the first air guide hole is parallel to or coincides with the central axis of the atomization chamber.

[0013] In one embodiment, the air guide channel also includes a second air guide hole passing through the fixed seat, the central axis of the second air guide hole is closer to the air inlet channel than the central axis of the first air guide hole, and the central axis of the second air guide hole is parallel to the central axis of the first air guide hole.

[0014] In one embodiment, the caliber of the first air guide hole is larger than the caliber of the second air guide hole.

[0015] In one embodiment, the number of the first air guide holes and the second air guide holes is multiple, and the multiple first air guide holes and the second air guide holes are symmetrically arranged relative to the symmetry plane of the fixing seat.

[0016] In one embodiment, the nozzle comprises a shell and an inserting portion connected to each other, the inserting portion is located inside the shell, the shell is connected to the fixing seat, and the inserting portion and the fixing seat enclose the atomizing chamber.

[0017] In one embodiment, the insertion portion has a first inner surface, the fixing seat has a second inner surface, the fixing seat includes a sleeve connected to the second surface and protruding relative to the second surface, the sleeve is arranged around the air guide channel, the insertion portion is inserted in the sleeve and abuts against the second surface, and the first inner surface and the second inner surface jointly define the boundary of the atomization chamber.

[0018] In one embodiment, it also includes a substrate layer that can be atomized to form an aerosol, and the substrate layer is attached to the atomization surface.

[0019] An electronic atomization device comprises a power supply and a heater as described in any one of the above items, wherein the heater is detachably connected to the power supply.

[0020] A technical effect of an embodiment of the present invention is that when a user draws air at the end of the inhalation channel, the external gas entering the atomization chamber will carry the aerosol from the atomization chamber through the guide chamber to the inhalation channel. During the flow of the aerosol, since the central axis of the atomization chamber is parallel to the atomization surface or is located within the atomization surface, it can ensure that the aerosol flows in a straight line, and the eddy currents generated by the turbulence of the aerosol in the atomization chamber and the inhalation channel can be reduced, and finally the contact between the aerosol and the inner wall of the atomization chamber and the entire inhalation channel can be reduced, and the aerosol loss caused by the aerosol adhering to the inner wall of the atomization chamber and the inhalation channel can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of an atomization device provided in an embodiment;

[0022] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the electronic atomization device shown in another viewing angle;

[0023] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the electronic atomization device shown in another viewing angle;

[0024] Figure 4 for Figure 1 A partial cross-sectional structural schematic diagram of the electronic atomization device shown;

[0025] Figure 5 for Figure 1 A schematic diagram of a first example exploded structure of the electronic atomization device shown;

[0026] Figure 6 for Figure 1 A second example exploded structural diagram of the electronic atomization device shown;

[0027] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of a first exemplary heating plate in the electronic atomization device shown;

[0028] Figure 8 for Figure 1 A schematic diagram of the planar structure of a second exemplary heating plate in the electronic atomization device shown;

[0029] Fig. 9 for Figure 8 A schematic diagram of the three-dimensional structure of the heating plate;

[0030] Fig.10 for Figure 1 A schematic diagram of a first exemplary arrangement of two adjacent rows of hole units of a heating plate in the electronic atomization device shown;

[0031] Fig.11 for Figure 1 A schematic diagram of a second exemplary arrangement of two adjacent rows of hole units of a heating plate in the electronic atomization device shown;

[0032] Fig.12 for Figure 1 A schematic diagram of a planar cross-sectional structure of a nozzle in the electronic atomization device shown;

[0033] Fig.13 for Figure 1 A schematic diagram of the structure in which the atomization chamber and the air guide chamber in the electronic atomization device are connected to each other;

[0034] Fig.14 for Figure 1 A schematic diagram of the cross-sectional structure of a heater in the electronic atomization device shown;

[0035] Fig.15 for Figure 1 A schematic diagram of a partial three-dimensional structure of a heater in the electronic atomization device shown;

[0036] Fig.16 for Fig.15 Schematic diagram of the three-dimensional structure from another perspective;

[0037] Fig.17 for Fig.15 Schematic diagram of the top view structure. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0040] See also Figure 1 , Figure 2 and Figure 3The heating atomization device 10 provided in one embodiment of the present invention includes a heater 11 and a power supply 500, which are detachably connected. The power supply 500 provides electrical energy to the heater 11, and the heater 11 converts the electrical energy into thermal energy, so that the heater 11 atomizes an aerosol-generating matrix such as tobacco or medicine through the thermal energy to form an aerosol for the user to inhale. The heater 11 includes a nozzle 100, a heating plate 200, a metal electrode 300 and a fixing seat 400. The heating plate 200, the metal electrode 300 and the fixing seat 400 are all located in the cavity of the nozzle 100, and the nozzle 100 and the fixing seat 400 are detachably connected, for example, the nozzle 100 and the fixing seat 400 can be fixed by a snap connection.

[0041] See also Figure 7 In some embodiments, the heating sheet 200 includes a connecting portion 210 and a heating portion 220. The heating portion 220 may be a sheet-like structure. The heating portion 220 has a first surface 201, a second surface 202 and a side surface 203. The first surface 201 and the second surface 202 are arranged along the thickness direction of the heating sheet 200 and face opposite directions. The two ends of the side surface 203 are connected to the first surface 201 and the second surface 202 respectively. The first surface 201 and the second surface 202 may be planes parallel to each other, so that the entire heating portion 220 is a non-bent and uniformly thick flat plate structure, so the entire heating portion 220 can be abstracted as a plane. The overall outline of the heating portion 220 may be a rectangle. Of course, the overall outline of the heating portion 220 may also be a circle or other regular polygonal structure. The heating portion 220 is provided with a perforation 223, the number of which is multiple, and the perforation 223 is a through hole that simultaneously passes through the first surface 201 and the second surface 202.

[0042] See also Figure 6 and Figure 7In some embodiments, the connection part 210 includes a first connection member 211 and a second connection member 212. Both the first connection member 211 and the second connection member 212 may be columnar straight rod structures and electrically connected to the power supply 500, that is, the power supply 500 supplies power to the heating part 220 through the first connection member 211 and the second connection member 212. When the cross section of the heating part 220 is rectangular, for example, when the length extension direction of the heating part 220 is the same as the horizontal direction, the first connection member 211 and the second connection member 212 are parallel to each other and are arranged at intervals along the length direction of the heating part 220. One end (left end) of the heating part 220 is connected to the first connection member 211, and the other end (right end) of the heating part 220 is connected to the second connection member 212, so that the entire heating part 220 is sandwiched between the first connection member 211 and the second connection member 212, and the side surface 203 of the heating part 220 abuts between the first connection member 211 and the second connection member 212. For example, considering that the first connector 211 and the second connector 212 are parallel to each other, the first connector 211 and the second connector 212 can be abstracted as straight line segments, and the plane where the two straight line segments of the first connector 211 and the second connector 212 are located is defined as a reference plane, and the projections of the heating part 220 on the reference plane are all located in the gap 213 between the two straight line segments of the first connector 211 and the second connector 212. In other words, along the width direction of the heating part 220, the ends (upper end and lower end) of the heating part 220 do not protrude relative to the ends of the two straight line segments of the first connector 211 and the second connector 212, so as to prevent the ends of the heating part 220 from being located outside the gap 213 between the first connector 211 and the second connector 212. In this way, the heating part 220 can make full use of the installation space formed by the gap 213 between the first connector 211 and the second connector 212, avoid the heating part 220 occupying the space outside the gap 213, and make the entire heating plate 200 more compact in structure.

[0043] Taking the extension direction of the first connecting member 211 as the reference direction, which is the width direction of the heating portion 220, one end (upper end) of the heating portion 220 is kept flush with one end (upper end) of the first connecting member 211 and the second connecting member 212, and the other end (lower end) of the heating portion 220 is kept at a set distance with the other end (lower end) of the first connecting member 211 and the second connecting member 212. Since the upper end of the heating portion 220 is kept flush with the upper end of the connecting portion 210, on the one hand, the heating portion 220 can reasonably utilize the gap 213 between the first connecting member 211 and the second connecting member 212. When the heating portion 220 is installed, it can be ensured that the lower end of the connecting portion 210 can protrude from the heating portion 220 by a reasonable length, so that the connecting portion 210 has enough length to be electrically connected to the power supply 500. On the other hand, the connection force between the heating portion 220 and the connecting portion 210 can be improved to ensure that the entire heating plate 200 has sufficient mechanical strength.

[0044] The heating part 220, the first connecting member 211 and the second connecting member 212 can be fixed by a split connection method. For example, the left end of the heating part 220 is connected to the first connecting member 211 by spot welding, and the right end of the heating part 220 is connected to the second connecting member 212 by spot welding. By welding connection, not only the manufacturing cost of the heating plate 200 can be reduced, but also the processing efficiency of the heating plate 200 can be improved. For example, the first connecting member 211 can be used as the positive electrode of the heating part 220, and the second connecting member 212 can be used as the negative electrode of the heating part 220, that is, the first connecting member 211 and the second connecting member 212 supply power to the heating part 220, and the heating part 220 is used to convert electrical energy into thermal energy.

[0045] See also Figure 7 In some embodiments, the cross section of the perforation 223 may be circular, that is, the perforation 223 is a circular hole. Of course, the cross section of the perforation 223 may also be a regular polygon. All the perforations 223 are arranged on the heating portion 220 to form multiple rows of hole units 204. The perforations 223 in each row of hole units 204 are arranged in a straight line along the width direction (up and down direction) of the heating portion 220. Therefore, each row of hole units 204 is in a straight line. The rows of hole units 204 are arranged at intervals along the length direction (left and right direction) of the heating portion 220, and the straight lines where the rows of hole units 204 are located are arranged parallel to each other. Obviously, the straight line extends along the width direction of the heating portion 220.

[0046] For any two adjacent rows of hole units 204, the extension direction of the straight line along one of the rows of hole units 204 is taken as the reference direction, which is the width direction of the heating section 220. The end of the straight line segment connecting the symmetry centers of the perforations 223 in one row of hole units 204 is recorded as the first end, and the end of the straight line segment connecting the symmetry centers of the perforations 223 in the other row of hole units 204 is recorded as the second end. The spacing between the first end and the corresponding second end in the reference direction is equal to zero. It can also be understood that the spacing between the symmetry center of the perforation 223 at the end of one row of hole units 204 and the symmetry center of the perforation 223 corresponding to the end of the other row of hole units 204 in the reference direction is equal to zero. In other words, in the width direction of the heating section 220, the ends of the rows of hole units 204 are flush with each other, so that the rows of hole units are "flushly arranged" and the arrangement lengths are equal. At the same time, the through holes 223 at both ends (upper and lower ends) of each row of hole units 204 do not penetrate the side surface 203 of the heating unit 220, so as to maintain a set distance from the side surface 203 of the heating unit 220. Through the above arrangement, the through holes 223 with circular cross sections can be arranged in a matrix on the heating unit 220. At this time, when the heating unit 220 is working, it can be ensured that the current direction ( Figure 7 The dashed arrow in the middle indicates the direction of the current (indicated by the middle dashed arrow) and is consistent with the length direction of the heating part 220, that is, the direction of the current is perpendicular to the first connecting member 211 and the second connecting member 212, so that the current is evenly distributed in each area of ​​the heating part 220, ensuring that the temperature and heat distribution of each area on the heating part 220 are uniform.

[0047] See also Figure 8 and Fig. 9 In some embodiments, the cross section of the perforation 223 may be rectangular, that is, the perforation 223 is a rectangular hole. Of course, the cross section of the perforation 223 may also be a narrow track shape or an ellipse. For the narrow and long perforation 223 with a rectangular cross section, like the square perforation 223 with a circular cross section, all the perforations 223 are arranged on the heating part 220 to form multiple rows of hole units 204, and the perforations 223 in each row of hole units 204 are arranged in a straight line along the width direction of the heating part 220, so each row of hole units 204 is in a straight line, and each row of hole units 204 is arranged at intervals along the length direction of the heating part 220, and the straight lines where each row of hole units 204 are located are arranged parallel to each other. Obviously, the straight line extends along the width direction of the heating part 220. At the same time, the widths of all the perforations 223 are equal.

[0048] See also Fig.10 and Fig.11, for any two adjacent rows of hole units 204, the extension direction of the straight line along which one of the rows of hole units 204 is located is taken as the reference direction, and the reference direction is the width direction of the heating unit 220, wherein the end of the straight line segment connecting the symmetric centers of the perforations 223 in one row of hole units 204 is recorded as the first end, and the end of the straight line segment connecting the symmetric centers of the perforations 223 in the other row of hole units 204 is recorded as the second end, and the spacing E between the first end and the second end in the reference direction is greater than zero. It can also be understood that the spacing E between the symmetric center of the perforation 223 at the end of one row of hole units 204 and the symmetric center of the perforation 223 corresponding to the end of the other row of hole units 204 in the reference direction is greater than zero. In other words, in the width direction of the heating unit 220, the ends of any two adjacent rows of hole units 204 are mutually offset, so that any two adjacent rows of hole units 204 are "overall offset arrangement". Of course, the perforations 223 on one row of hole units (i.e., the first row of hole units 221) are recorded as first perforations 221a, and the perforations 223 on the other row of hole units (i.e., the second row of hole units 222) are recorded as second perforations 222a. The orthographic projection 222b of the second perforations 222a on the first row of hole units 221 cannot overlap with the first perforations 221a or completely cover the entire first perforations 221a, ensuring that at least a portion of the orthographic projection 222b is located outside the first perforations 221a. For example, the orthographic projection 222b is located outside the first perforations 221a. Fig.10 The first through hole 221a shown is outside or covers Fig.11 A small part (partial) of the first perforation 221a shown. In other words, the perforations 223 in any two adjacent rows of hole units 204 are staggered with each other, so that any two adjacent rows of hole units 204 are "partially staggered". The multiple rows of hole units 204 include a first row of hole units 221 and a second row of hole units 222, and the first row of hole units 221 and the second row of hole units 222 are staggered in the length direction of the heating portion 220. For example, from left to right, when the first row of hole units 221 appears first, the second row of hole units 222 will appear in the second, the first row of hole units 221 will appear in the third, and the second row of hole units 222 will appear in the fourth, and so on.

[0049] See also Fig. 9, the through-holes 223 located at at least one end of the first row of hole units 221 penetrate the side surface 203 of the heating portion 220, for example, the through-holes 223 located at the upper end or the lower end of the first row of hole units 221 penetrate the side surface 203 of the heating portion 220, and for another example, the through-holes 223 located at the upper end and the lower end of the first row of hole units 221 penetrate the side surface 203 of the heating portion 220 at the same time. The through-holes 223 located at the ends of the second row of hole units 222 do not penetrate the side surface 203 and maintain a set distance D from the side surface 203. The arrangement length L1 of the first row of hole units 221 can be greater than or equal to the arrangement length L2 of the second row of hole units 222, which is defined as the length of the straight line segment connecting the symmetry centers of each through-hole 223 in each row of hole units.

[0050] The perforations 223 are uniformly distributed on the heating portion 220 at a set density. Specifically, the shapes of all the perforations 223 are the same, the spacing between any two adjacent perforations 223 in each row of hole units 204 is equal, and the spacing between any two adjacent rows of hole units 204 is equal. For any two rows of hole units 204, the spacing between two adjacent perforations 223 in one row of hole units 204 is equal to the spacing between two adjacent perforations 223 in another row of hole units 204. The distribution density of the perforations 223 can be 1 to 5 per square millimeter. When the cross section of the perforations 223 is circular, the distribution density of the perforations 223 can be 3 to 5 per square millimeter, for example, the specific value of the distribution density of the perforations 223 can be 4 per square millimeter. When the cross section of the perforations 223 is rectangular, the distribution density of the holes can be 1 to 2 per square millimeter, for example, the specific value of the distribution density of the perforations 223 can be 1.6 per square millimeter. When the perforations 223 are evenly distributed on the heating part 220 at a set density, the current can be evenly distributed in each area of ​​the heating part 220, thereby ensuring that the temperature and heat distribution of each area of ​​the heating part 220 are uniform. Of course, according to actual needs, the distribution of the perforations 223 on the heating part 220 can also be non-uniform, that is, the perforations 223 on some parts of the heating part 220 are denser, while the perforations 223 on other parts are sparser.

[0051] See also Figure 7, when the cross section of the perforation 223 is a square circle, the diameter of the circle is 0.2mm to 0.3mm. For example, the specific values ​​of the diameter and the side length can be 0.25mm, etc. The length A of the heating portion 220 is 9mm to 10mm, for example, the specific value of the length A of the heating portion 220 can be 9mm, 9.5mm, 9.8mm or 10mm, etc. The width B of the heating portion 220 is 7mm to 8mm, for example, the specific value of the width B of the heating portion 220 can be 7mm, 7.5mm, 7.6mm or 8mm, etc. The thickness C of the heating portion 220 is 0.05mm to 0.1mm, for example, the specific value of the thickness C of the heating portion 220 can be 0.05mm, 0.06mm, 0.08mm or 0.1mm, etc.

[0052] See also Fig. 9 When the cross section of the perforation 223 is a narrow rectangle, the length of the rectangular cross section of the perforation 223 is 0.8 mm to 1.5 mm, the length of the cross section of the perforation 223 in the first row of hole units 221 is 0.5 mm to 1.0 mm, for example, the specific value of the length can be 0.8 mm, etc.; the length of the cross section of the perforation 223 in the second row of hole units 222 is 0.8 mm to 1.5 mm, for example, the specific value of the length can be 1.2 mm, etc. The widths of the cross sections of the perforations 223 in the first row of hole units 221 and the second row of hole units 222 can be equal and range from 0.05 mm to 0.15 mm, for example, the specific value of the width can be 0.1 mm, etc. The length of the heating part 220 is 8mm to 12mm, and the specific value of the length can be 10mm, etc. The width of the heating part 220 is 5mm to 9mm, and the specific value of the width can be 7mm, etc. The thickness of the heating part 220 is 0.05mm to 0.1mm, and the specific value of the thickness can be 0.05mm, etc.

[0053] In some embodiments, the heater 11 further includes a matrix layer, and the heating portion 220 can be made of at least one of stainless steel, nickel-chromium alloy, manganese steel alloy or tungsten material, so that the heating portion 220 has a higher temperature coefficient of resistance (TCR). The heating portion 220 can be coated with tobacco or medicine, etc., which can be atomized to form an aerosol. The tobacco and medicine can be solid, paste or colloid, etc. When the above substances are coated on the heating portion 220, the matrix layer attached to the heating portion 220 can be formed after a reasonable period of curing. When the medicine is coated on the heating portion and the heating portion 220 converts electrical energy into thermal energy, the matrix layer will absorb the thermal energy and atomize to form an aerosol for the user to inhale. The matrix layer can be attached to the first surface 201 and / or the second surface 202. For example, the matrix layer can be attached only to the first surface 201 or the second surface 202, or the matrix layer can be attached to the first surface 201 and the second surface 202 at the same time. When the user's demand for a single puff volume is small, the matrix layer can be attached to the first surface 201 or the second surface 202 alone. When the user's demand for a single puff volume is large, the two matrix layers can be attached to the first surface 201 and the second surface 202 at the same time. Therefore, the first surface 201 and / or the second surface 202 can be regarded as an atomization surface. When the atomization surface generates heat, the matrix layer directly absorbs the heat on the atomization surface and atomizes to form an aerosol.

[0054] The matrix layer may include a first matrix layer and a second matrix layer with different components, wherein the first matrix layer is attached to the first surface 201, and the second matrix layer is attached to the second surface 202. When the heating unit 220 generates heat, the first matrix layer and the second matrix layer will simultaneously form an aerosol that can be absorbed by the user. When the matrix layer is a medicine, the user can absorb two different medicines at the same time to meet the different treatment needs of the user. When the matrix layer is tobacco, the user can absorb two different tobaccos at the same time, that is, the flavor is mixed to achieve the diversification of tobacco flavors.

[0055] When the first surface 201 and the second surface 202 are planes, it is more convenient to coat tobacco or drugs on the first surface 201 and the second surface 202, thereby improving coating efficiency and making the thickness of the cured matrix layer more uniform. When the heating unit 220 is working, it is ensured that the concentration of aerosol generated in each area of ​​the heating unit 220 is uniform, ensuring that the entire heating sheet 200 has better atomization consistency.

[0056] In some embodiments, when the cross-section of the perforation 223 is circular and the diameter of the circle is 0.2 mm to 0.3 mm, or, when the cross-section of the perforation 223 is rectangular and the length of the rectangle is 0.8 mm to 1.5 mm and the width is 0.05 mm to 0.15 mm, during the process of the substrate layer being attached to the heating portion 220, the substrate layer can form good surface tension on the perforations 223 designed with this size, ensuring that the substrate layer can not only cover the portions of the atomization surface where the perforations 223 are not provided, but also can cover the perforations 223, thereby increasing the total coverage area and total coverage amount of the substrate layer on the heating plate 200.

[0057] In some embodiments, at least one of the first surface 201 and the second surface 202 is a rough surface, and the roughness of the rough surface is Ra3.2 to Ra6.3, and the specific value of the roughness can be Ra3.2, Ra5 or Ra6.3, etc. For example, the rough surface can be formed by sandblasting or chemical treatment on the first surface 201 and the second surface 202. By forming the rough surface, the adhesion of the matrix layer can be improved when the area of ​​the first surface 201 and the second surface 202 is constant, thereby appropriately increasing the thickness of the matrix layer, and finally achieving the purpose of increasing the total coverage of the matrix layer.

[0058] The length, width, thickness, number of perforations 223 of the heating part 220 and the arrangement of each row of hole units 204 constitute the factors affecting the resistance of the heating part 220. Specifically, when the length and width of the heating part 220 are reduced, resulting in a reduction in area, the resistance of the heating part 220 increases. When the thickness of the heating part 220 is reduced, the resistance of the heating part 220 increases. When the number of perforations 223 per unit area on the heating part 220 increases, the resistance of the heating part 220 increases. When an "overall dislocation arrangement" is formed between any two adjacent rows of hole units 204, and multiple rows of hole units 204 extend to the side surface 203 of the heating part 220, the length of all perforations 223 arranged in the width direction of the heating part 220 can be increased while the total number of perforations 223 remains unchanged, thereby increasing the resistance by increasing the stroke of the current. At the same time, when a "partial dislocation arrangement" is formed between any two adjacent rows of hole units 204, the current stroke can be further increased to increase the resistance of the heating part 220. In the case of the same current, the amount of heat generated by the heating part 220 can be increased.

[0059] Therefore, by selecting the length, width, thickness, and number of perforations 223 of the heating part 220 within the above range, and forming an "overall dislocation arrangement" and a "partial dislocation arrangement" between any two adjacent rows of hole units 204, and passing multiple rows of hole units 204 through the side surface 203 of the heating part 220. The resistance of the heating part 220 can be controlled within the range of 0.05Ω to 0.15Ω, and the resistance of the heating part 220 can be 0.05Ω, 0.06Ω, 0.10Ω or 0.15Ω, etc. When the power supply 500 supplies power to the heating part 220, the temperature of the heating part 220 can rise to a high temperature of 500°C to 600°C in a short time of 0.1s to 0.6s. Thereby, the matrix layer attached to the heating part 220 can be quickly atomized and enter a smokeable state, thereby improving the sensitivity of the heating atomization device 10 to the suction response.

[0060] See also Figure 6 and Fig.15 In some embodiments, the first connector 211 and the second connector 212 are both detachably connected to the fixing base 400. Specifically, the fixing base 400 is provided with mounting holes 460, the number of the mounting holes 460 is two, the number of the metal electrodes 300 is also two, one of the metal electrodes 300 can be used as a positive electrode and cooperate with one of the mounting holes 460, and the other metal electrode 300 can be used as a negative electrode and cooperate with the other mounting hole 460. The metal electrodes 300 are provided with fixing holes 310, the first connector 211 is detachably inserted into the fixing hole 310 of one of the metal electrodes 300, and the second connector 212 is detachably inserted into the fixing hole 310 of the other metal electrode 300. Therefore, the first connector 211 and the second connector 212 can be inserted into or pulled out of the fixing hole 310 of the metal electrode 300, thereby realizing a detachable connection relationship between the entire heating plate 200 and the fixing base 400.

[0061] Since the metal electrode 300 is arranged on the fixing seat 400, the first connecting member 211 and the second connecting member 212 can be inserted into or pulled out of the fixing hole 310 of the metal electrode 300. Therefore, the first connecting member 211 and the second connecting member 212 form a plug-in connection relationship with the metal electrode 300, which not only ensures the convenience of installation and disassembly of the entire heating plate 200, but also can significantly reduce the contact resistance between the connecting portion 210 and the metal electrode 300, and can avoid fluctuations in the contact resistance to ensure the stability of the contact resistance. When the power supply 500 supplies power to the heating portion 220, since the contact resistance is small and can remain stable, the voltage value loaded on the contact resistance can be reduced, and the heat loss generated by the contact resistance can be reduced, thereby ensuring that a larger voltage value is loaded on the heating portion 220, improving the heating power of the heating portion 220 and the energy utilization rate of the entire heating atomization device 10.

[0062] Since the heating sheet 200 is detachably connected to the fixing base 400, when the matrix layer on the heating part 220 is completely consumed, the entire heating sheet 200 can be pulled out from the fixing base 400 and discarded, so that the heating sheet 200 is a disposable consumable. In this way, the cleaning problem faced by the heating sheet 200 when it is reused multiple times can be avoided, thereby eliminating the cleaning process of the heating sheet 200. At the same time, it is only necessary to open a plurality of mesh holes on the heating part 220 of the sheet structure to quickly atomize the matrix layer, so that the entire heating sheet 200 has a simple structure and can reduce the manufacturing cost, thereby reducing the consumption cost of the heating sheet 200 caused by discarding.

[0063] When the heating plate 200 needs to be discarded, the nozzle 100 is first unloaded from the fixing seat 400, and then the heating plate 200 is pulled off the fixing seat 400 and discarded. Therefore, the heating plate 200 in the heating atomization device 10 can be used as a disposable consumable, and the fixing seat 400, the nozzle 100 and the power supply 500 in the heating atomization device 10 can be recycled, thereby reducing the use cost of the heating atomization device 10. Of course, since the heater 11 and the power supply 500 are detachably connected, the heater 11 can also be disassembled and discarded as a whole.

[0064] See also Figure 3 , Figure 4 and Figure 5 In some embodiments, the suction nozzle 100 is provided with an inhalation channel 110, an atomizing chamber 120 and an air inlet channel 150, the inhalation channel 110 and the atomizing chamber 120 are coaxially arranged, the inhalation channel 110 includes a guide chamber 111 and an inhalation chamber 112, the inhalation chamber 112 and the air inlet channel 150 are both directly connected to the outside, the guide chamber 111 is located between the atomizing chamber 120 and the inhalation chamber 112, so that the guide chamber 111 is directly connected to the atomizing chamber 120 and the inhalation chamber 112. When the user inhales in the inhalation chamber 112, the outside atmosphere enters the inhalation chamber 112 through the air inlet channel 150, the atomizing chamber 120 and the guide chamber 111 in sequence to be inhaled by the user.

[0065] See also Figure 3 and Fig.12, the caliber R1 of the atomizing chamber 120 remains constant in its own axial direction, so that the atomizing chamber 120 is a cylindrical cavity. Along the direction of the atomizing chamber 120 pointing to the guide cavity 111 (from bottom to top), the caliber R2 of the guide cavity 111 gradually decreases in its own axial direction, so that the guide cavity 111 is roughly a conical cavity. In view of the fact that the first surface 201 and / or the second surface 202 form an atomizing surface for atomizing the matrix layer to form an aerosol, part or all of the atomizing surface is located in the atomizing chamber 120, and the central axis of the atomizing chamber 120 is parallel to the atomizing surface or is located within the atomizing surface. The matrix layer absorbs the heat of the atomizing surface and atomizes to produce aerosol, and the aerosol will be first discharged in the atomizing chamber 120. When the user draws at the end of the inhalation cavity 112, the external gas entering the atomizing chamber 120 will carry the aerosol from the atomizing chamber 120 to the inhalation cavity 112 through the guide cavity 111. In the process of aerosol flowing from bottom to top, on the one hand, since the central axis of the atomizing chamber 120 is parallel to the atomizing surface or located within the atomizing surface, it can ensure that the aerosol flows vertically upward in a straight line, and the eddy currents generated by the turbulence of the aerosol in the atomizing chamber 120 and the inhalation channel 110 can be reduced, thereby reducing the flow path of the aerosol, and finally reducing the contact between the aerosol and the inner wall of the atomizing chamber 120 and the entire inhalation channel 110, which can prevent the aerosol from adhering to the atomizing chamber 120 and the inhalation channel 110. On the other hand, due to the contraction effect of the airflow caused by the gradual reduction of the diameter R2 of the guide cavity 111, the guide cavity 111 forms a "contraction section". According to the relevant theories of fluid mechanics, the aerosol will flow closer to the central axis of the atomizing cavity 120, thereby reducing the contact with the atomizing cavity 120 and the inner wall surface of the entire inhalation channel 110, and preventing the aerosol from being lost due to adhesion to the inner wall surface of the atomizing cavity 120 and the inhalation channel 110. In particular, for the absorption of drugs, by reducing the loss of aerosol caused by adhesion, it can be ensured that the patient can absorb a sufficient amount of drugs to effectively treat related symptoms.

[0066] See also Fig.13 In some embodiments, the maximum diameter R21 of the guide cavity 111 is greater than or equal to the diameter R1 of the atomizing cavity 120. Obviously, the maximum diameter R2 of the guide cavity 111 (maximum diameter R21) is arranged close to the atomizing cavity 120. This arrangement can also reduce the loss of aerosol due to adhesion to a certain extent. Fig.12 , along the direction from the atomizing chamber 120 to the guiding chamber 111 (from bottom to top), the aperture R3 of the inhalation chamber 112 gradually increases in its axial direction, and the inhalation chamber 112 will form an "expansion section" corresponding to the above-mentioned "contraction section", which is also conducive to making the aerosol flow closer to the central axis of the atomizing chamber 120, thereby reducing aerosol loss. Of course, along the direction from bottom to top, the aperture R3 of the inhalation chamber 112 can remain constant.

[0067] See also Figure 4 , Fig.12 and Fig.15 In some embodiments, the nozzle 100 includes a shell 141 and an insertion portion 140 that are connected to each other. The insertion portion 140 is located in the cavity of the shell 141. The shell 141 is detachably connected to the fixed seat 400, and the insertion portion 140 has a first inner surface 130. The fixed seat 400 includes a sleeve 430, and the fixed seat 400 has a second inner surface 420. The sleeve 430 is connected to the second inner surface 420 and protrudes upward by a certain length relative to the second inner surface 420. When the nozzle 100 is installed on the fixed seat 400, the insertion portion 140 of the nozzle 100 is inserted in the cavity of the sleeve 430, and the end of the nozzle 100 abuts against the second inner surface 420. The sleeve 430 can play a radial positioning role for the nozzle 100, and the second inner surface 420 can play a supporting role for the nozzle 100, thereby improving the stability and reliability of the installation of the nozzle 100. When the nozzle 100 is mounted on the fixing base 400 , the first inner surface 130 and the second surface 202 can jointly define the boundary of the atomizing chamber 120 . The first inner surface 130 constitutes a part of the inner wall surface of the atomizing chamber 120 .

[0068] See also Figure 4 , Fig.15 and Fig.17 The fixed seat 400 is provided with an air guide channel 410, and the sleeve 430 is arranged around the air guide channel 410. The air guide channel 410 passes through the second surface 202 and is directly connected to the atomizing chamber 120. Of course, the air guide channel 410 is connected to the air inlet channel 150, and the external gas enters the atomizing chamber 120 through the air inlet channel 150 and the air guide channel 410 in sequence to carry the aerosol. The central axis of the air guide channel 410 is parallel to or coincides with the central axis of the atomizing chamber 120, so that the airflow direction in the air guide channel 410 is consistent with the airflow direction in the atomizing chamber 120, that is, both flow vertically upward, further reducing the airflow carrying the aerosol in the atomizing chamber 120 and the air inhalation channel 110 to generate vortices, thereby preventing the aerosol from remaining on the inner wall surface of the first inner surface 130 and the air inhalation channel 110 due to adhesion.

[0069] See 4 and Fig.14In some embodiments, the air guide channel 410 includes a first air guide hole 411 and a second air guide hole 412, the central axis of the first air guide hole 411 is parallel to or coincides with the central axis of the atomizing chamber 120, the central axes of the first air guide hole 411 and the second air guide hole 412 are parallel to each other, and the caliber of the first air guide hole 411 is larger than the caliber of the second air guide hole 412. Since the structural strength of the central area of ​​the fixing seat 400 is relatively large, the first air guide hole 411 can be closer to the central area of ​​the fixing seat 400 relative to the second air guide hole 412. There is a first distance h between the central axis of the first air guide hole 411 and the central axis of the atomizing chamber 120, and there is a second distance H between the central axis of the first air guide hole 411 and the first inner surface 130, and the first distance h is less than the second distance H; in other words, the first air guide hole 411 is close to the center of the atomizing chamber 120 and away from the edge of the atomizing chamber 120. The central axis of the second air guide hole 412 is closer to the first inner surface 130 than the central axis of the first air guide hole 411 ; in other words, the second air guide hole 412 is close to the edge of the atomizing chamber 120 and away from the center of the atomizing chamber 120 .

[0070] Since the aperture of the first air guide hole 411 is relatively large, the airflow ejected vertically upward from the first air guide hole 411 is relatively large, and the relatively large airflow is close to the central axis of the atomizing chamber 120 to form a central airflow, ensuring that the central airflow carries most of the aerosol and flows close to the center of the atomizing chamber 120 and the inhalation channel, reducing the contact between the aerosol and the inner wall of the atomizing chamber 120 and the inhalation channel 110. Even if a small part of the aerosol flows close to the edge (first inner surface 130) of the atomizing chamber 120, since the central axis of the second air guide hole 412 is arranged close to the first inner surface 130, the airflow ejected from the second air guide hole 412 will form an edge airflow, which forms a high-speed air film on the inner wall of the first inner surface 130 and the inhalation channel 110. The high-speed air film can well block the contact between the aerosol and the first inner surface 130 and the inner wall of the inhalation channel 110, thereby reducing the loss of aerosol.

[0071] The number of both the first air guide holes 411 and the second air guide holes 412 can be multiple, and the multiple first air guide holes 411 and the second air guide holes 412 are symmetrically arranged relative to the symmetry plane of the fixed seat 400, so that the airflow intensity sprayed from the entire air guide channel 410 into the air inhalation channel 110 is evenly distributed in the atomizing chamber 120, and the airflow intensity should be prevented from being unevenly distributed and generating vortices in the atomizing chamber 120 and the air inhalation channel 110, and the aerosol residue in the atomizing chamber 120 and the air inhalation channel 110 can also be reduced. The number of the first air guide holes 411 can be four, and the second air guide holes 412 can be divided into two groups, each group of the second air guide holes 412 has four, and the four first air guide holes 411 are located between the two groups of the second air guide holes 412.

[0072] The power supply 500 has a bearing surface 510, and the power supply 500 includes a boss 520, an electrode column 530 and a sensor 540. The boss 520 is connected to the bearing surface 510, and the boss 520 protrudes a certain height relative to the bearing surface 510. The electrode column 530 is inserted into the boss 520, and the boss 520 is provided with a plug hole 522 and a first sensing hole 521. The sensor 540 can sense the gas pressure in the first sensing hole 521, and the first sensing hole 521 can be set at the center of the boss 520. The fixing seat 400 also includes a positioning column 440, and the number of the positioning column 440 can be two. Of course, the number of the plug holes 522 is also two, and the two plug holes 522 can be symmetrically arranged relative to the first sensing hole 521. When the heater 11 is mounted on the power source 500, the edge of the heater 11 abuts against the bearing surface 510, the bearing surface 510 supports the heater 11, the boss 520 cooperates with the cavity in the heater 11 and is snap-connected to the heater 11, and the positioning column 440 of the heater 11 cooperates with the socket 522 on the boss 520 (see Figure 5 and Fig.16 ), the boss 520 and the positioning column 440 both play a good positioning role in the installation of the heater 11. At the same time, the metal electrode 300 is inserted into the electrode column 530 of the power supply 500, so the power supply 500 provides electrical energy to the heating part 220 through the electrode column 530, the metal electrode 300 and the connecting part 210 in sequence.

[0073] See also Fig.16 and Fig.17 The fixing base 400 is further provided with a second sensing hole 450, which is connected to the first sensing hole 521. The second sensing hole 450 and the first sensing hole 521 can be coaxially arranged, and the second sensing hole 450 can be exactly arranged at the center of the fixing base 400. Figure 3 When the user inhales at the end of the inhalation channel 110, negative pressure will be generated in the second sensing hole 450 and the first sensing hole 521. When the sensor 540 in the power supply 500 senses the negative pressure, the power supply to the heating part 220 can be started, thereby starting the atomization of the matrix layer.

[0074] See also Figure 2 A charging socket 550 may also be provided on the power supply 500. When a charging device is inserted into the charging socket 550, the power supply 500 may be charged, so that the power supply 500 may be recycled for multiple times.

[0075] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A heater, characterized in that: include: The nozzle is provided with an air inhalation channel and an atomization chamber, wherein the air inhalation channel is directly connected with the atomization chamber and the outside world; and A heating sheet having a sheet-like structure and having an atomizing surface for atomizing an aerosol-generating substrate to form an aerosol, at least a portion of the atomizing surface is located in the atomizing cavity, and a central axis of the atomizing cavity is parallel to the atomizing surface or located in the atomizing surface; It also includes a fixing seat located in the suction nozzle, the heating plate is connected to the fixing seat, the suction nozzle is also provided with an air inlet channel directly connected to the outside, the fixing seat is provided with an air guide channel connecting the atomizing chamber and the air inlet channel at the same time, and the external gas enters the air inlet channel through the air inlet channel, the air guide channel and the atomizing chamber in sequence; The central axis of the air guide channel is parallel to or coincides with the central axis of the atomization chamber; The air inlet channel is coaxially arranged with the atomizing chamber, the caliber of the atomizing chamber is kept constant in its axial direction, the air inlet channel comprises a guide chamber directly connected with the atomizing chamber, and the caliber of the guide chamber is gradually reduced in its axial direction along the direction from the atomizing chamber to the guide chamber.

2. The heater according to claim 1, characterized in that The suction nozzle is fixed to the fixing seat by means of a snap connection.

3. The heater according to claim 1, characterized in that The maximum caliber of the guide cavity is greater than or equal to the caliber of the atomization cavity.

4. The heater according to claim 1, characterized in that The air inhalation channel further comprises an air inhalation cavity, which is directly connected to the guide cavity and the outside, and the diameter of the air inhalation cavity gradually increases or remains constant in the axial direction along the direction from the atomization cavity to the guide cavity.

5. The heater according to claim 1, characterized in that The heating plate is detachably connected to the fixing seat.

6. The heater according to claim 1, characterized in that The air guide channel includes a first air guide hole that penetrates the fixing seat and is located in the atomizing chamber, and a central axis of the first air guide hole is parallel to or coincides with a central axis of the atomizing chamber.

7. The heater according to claim 6, characterized in that The air guide channel also includes a second air guide hole passing through the fixing seat, wherein the central axis of the second air guide hole is closer to the air inlet channel than the central axis of the first air guide hole, and the central axis of the second air guide hole is parallel to the central axis of the first air guide hole.

8. The heater according to claim 7, characterized in that The caliber of the first air guide hole is larger than the caliber of the second air guide hole.

9. The heater according to claim 7, characterized in that The number of the first air guide holes and the second air guide holes is multiple, and the multiple first air guide holes and the second air guide holes are symmetrically arranged relative to the symmetry plane of the fixing seat.

10. The heater according to claim 1, characterized in that The nozzle comprises a shell and an inserting portion which are connected to each other. The inserting portion is located inside the shell. The shell is connected to the fixing seat. The inserting portion and the fixing seat form the atomizing chamber.

11. The heater according to claim 10, characterized in that The insertion portion has a first inner surface, the fixing seat has a second inner surface, the fixing seat includes a sleeve connected to the second inner surface and protruding relative to the second inner surface, the sleeve is arranged around the air guide channel, the insertion portion is inserted in the sleeve and abuts against the second inner surface, and the first inner surface and the second inner surface jointly define the boundary of the atomization chamber.

12. The heater according to claim 1, characterized in that It also includes a substrate layer that can be atomized to form an aerosol, and the substrate layer is attached to the atomization surface.

13. An electronic atomization device, characterized in that: The invention comprises a power source and the heater according to any one of claims 1 to 12, wherein the heater is detachably connected to the power source.

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