WO2022266808A1

WO2022266808A1 - Atomization device and heating assembly thereof

Info

Publication number: WO2022266808A1
Application number: PCT/CN2021/101297
Authority: WO
Inventors: 王涛
Original assignee: 深圳沃德韦科技有限公司
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-12-29

Abstract

An atomization device (100) and a heating assembly (2) thereof. The heating assembly (2) comprises a heating main body (20) and a flow distribution screen (25) arranged on the heating main body (20). A flow convergence hole (2250) is formed on the heating main body (20), and a diffusion cavity (2260) communicated with the flow convergence hole (2250) is formed between the heating main body (20) and the flow distribution screen (25); the flow distribution screen (25) comprises a flow distribution area (S) arranged corresponding to the diffusion cavity (2260), and a plurality of air flow holes (250) that allow air flows to pass through are distributed on the flow distribution area (S). After hot air flowing out from the flow convergence hole (2250) is diffused in the diffusion cavity (2260), the hot air is redistributed by means of the plurality of air flow holes (250) in the flow distribution screen (25), and the redistributed hot air then flows to an atomizing medium for heating, so that the atomizing medium can be heated more uniformly.

Description

Atomization device and its heating components

technical field

The invention relates to the field of atomization, more specifically, to an atomization device and a heating assembly thereof.

Background technique

The atomizing device is a device used to heat atomizing media such as plant grass leaves and smoke paste to generate atomized gas for users to inhale. The atomizing device can precisely control the heating temperature to heat the atomizing medium to a temperature sufficient to volatilize its volatile compounds without igniting combustion, thereby reducing the harmful products that may be produced by inhaling combustion. However, due to the limitations of the heating method, it is easy to cause uneven heating, or local high temperature, resulting in direct carbonization of the atomizing medium when heated, or the volatilized compound has a burnt smell.

technical problem

The technical problem to be solved by the present invention is to provide an improved heating assembly and an atomizing device with the heating assembly for the above-mentioned defects of the prior art.

technical solution

The technical solution adopted by the present invention to solve the technical problem is: to construct a heating assembly, including a heating body and a shunt net arranged on the heating body;

A confluence hole is formed on the heating body, and a diffusion cavity communicating with the confluence hole is formed between the heating body and the distribution network; the distribution network includes a distribution area corresponding to the diffusion cavity, A plurality of air holes for air flow are distributed on the distribution area.

In some embodiments, the top surface of the heating body is recessed to form the diffusion cavity.

In some embodiments, the central axis of the confluence hole coincides with the central axis of the diffusion chamber.

In some embodiments, the flow splitting area includes a central area located at the center and a peripheral area surrounding the central area, and the distribution density of the plurality of airflow holes in the central area is smaller than that in the peripheral area.

In some embodiments, the heat generating body includes a base, a heat generating cover disposed on the base, and a heating element disposed between the base and the heat generating cover and communicating with the confluence hole.

In some embodiments, a heating cavity for placing the heating element is formed between the base and the heating cover, and the heating cavity surrounds the confluence hole and communicates with the confluence hole.

In some embodiments, a confluence groove connecting the heating cavity with the confluence hole is formed between the base and the heating cover, and a confluence groove connecting the heating chamber and the confluence hole is formed on the base and/or the heating cover. At least one air inlet through which the heating chamber communicates with the outside world.

In some embodiments, there are two air inlets, and two electrode leads respectively connected to two ends of the heating element are led out from the two air inlets.

In some embodiments, the upper wall and/or the lower wall of the heating cavity are protrudingly formed with at least one heat insulating rib for the heating element to lean against.

In some embodiments, at least one heat-insulating protrusion protrudes from the outer wall of the heating cover.

In some embodiments, the heating assembly further includes an upper cover that covers the heating body and the distribution net, and an atomization chamber that communicates the diffusion chamber with the outside is formed on the upper cover.

In some embodiments, the outer edge of the distribution net protrudes outward to form at least one limiting protrusion, and the at least one limiting protrusion abuts against the inner wall of the upper cover.

In some embodiments, the heating assembly further includes a locking member that wraps around the upper cover and the heating body and locks the upper cover and the heating body.

In some embodiments, the heating assembly further includes a replaceable filter screen arranged above the shunt net for placing atomized media; the replaceable filter screen includes a bottom wall, and multiple A first filter hole for airflow to pass through.

In some embodiments, a ventilation gap is formed between the replaceable filter screen and the distribution screen.

In some embodiments, the replaceable filter screen includes a first area located at the center and a second area surrounding the first area, and the distribution density of the plurality of first filter holes in the first area is smaller than that in the first area. The distribution density of the second zone.

In some embodiments, the heating assembly further includes a paste guide disposed above the shunt net for placing a paste atomizing medium.

In some embodiments, the heating assembly further includes a temperature measuring element for measuring the temperature of the air inside the heating assembly.

In some embodiments, the temperature measuring element is disposed on the lower side or the upper side of the heating cover.

The present invention also provides an atomizing device, which includes a main body, a heating assembly as described above in the main body, and a suction nozzle assembly arranged above the main body.

In some embodiments, the nozzle assembly is magnetically connected to the main body.

Beneficial effect

The implementation of the present invention has at least the following beneficial effects: a diffusion cavity is formed between the heating body and the distribution network, and after the hot air flowing out from the confluence hole is diffused in the diffusion cavity, it is redistributed through a plurality of airflow holes on the distribution network, and then redistributed. The final hot air then flows to the atomizing medium for heating, so that the heating of the atomizing medium can be more uniform.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a schematic perspective view of the three-dimensional structure of the atomizing device when the suction nozzle is in the first position in the first embodiment of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of the atomization device shown in Fig. 1;

Fig. 3 is a schematic perspective view of the three-dimensional structure of the atomizing device when the suction nozzle in Fig. 1 is in the second position;

Fig. 4 is a schematic cross-sectional structure diagram of the atomization device shown in Fig. 3;

Fig. 5 is a schematic diagram of an exploded structure of the atomization device shown in Fig. 3;

Fig. 6 is a schematic diagram of an exploded structure of the nozzle assembly in Fig. 5;

Fig. 7 is a schematic diagram of an exploded structure of the heating assembly in Fig. 5;

Fig. 8 is a schematic cross-sectional structural view of the heating assembly in Fig. 5;

Fig. 9 is a schematic diagram of the three-dimensional structure of the heating cover in Fig. 7;

Fig. 10 is a schematic cross-sectional structural view of the heating assembly of the atomization device in the second embodiment of the present invention;

Fig. 11 is a schematic diagram of the three-dimensional structure of the replaceable filter screen in Fig. 10;

Fig. 12 is a schematic cross-sectional view of the heating assembly of the atomization device in the third embodiment of the present invention;

Fig. 13 is a schematic diagram of the three-dimensional structure of the replaceable filter screen in Fig. 12;

Fig. 14 is a schematic cross-sectional view of the heating assembly of the atomizing device in the fourth embodiment of the present invention.

Embodiments of the present invention

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

1-9 show an atomizing device 100 in the first embodiment of the present invention, the atomizing device 100 may be approximately oval columnar and may include a main body 1, a suction nozzle assembly 3 arranged longitudinally above the main body 1, and The heating element 2 arranged in the main body 1 . The suction nozzle assembly 3 can be detachably installed above the main body 1, so that the suction nozzle assembly 3 can be removed from the main body 1 for cleaning, and after the suction nozzle assembly 3 is removed, atomization can be added to the heating assembly 2 medium. The heating component 2 can heat the air to form hot air after being energized and generate heat. The hot air flows to the atomizing medium to be heated and atomized to form atomized gas, which then flows out through the nozzle component 3 for users to inhale. It can be understood that the atomizing device 100 is not limited to be in the form of an elliptical column, and it can also be in other shapes such as a column, a square column, a flat column, and the like.

In some embodiments, the main body 1 may include a cylindrical housing 11, a button 18 disposed on the housing 11, a bottom cover 16 disposed below the housing 11, a battery 13 disposed in the housing 11, and a motherboard 15 disposed in the housing 11 . The battery 13 is electrically connected to the main board 15 , the main board 15 is electrically connected to the heating assembly 2 , and the main board 15 can control the on-off between the battery 13 and the heating assembly 2 under the action of the button 18 .

In some embodiments, the main body 1 may further include a bracket 12 disposed longitudinally in the housing 11 . The battery 13 can be disposed in the bracket 12 , and the motherboard 15 can be disposed on one side of the bracket 12 . An accommodating groove 120 with an open top is formed on the upper part of the bracket 12 , and the heating assembly 2 can be placed in the accommodating groove 120 through the open top. A thermal insulation pad 14 can be provided in the accommodation tank 120 , and the heating component 2 can lean against the bottom wall of the storage tank 120 through the thermal insulation pad 14 , which is beneficial to improve the thermal insulation performance between the heating component 2 and the bracket 12 . The heat insulation pad 14 can generally be made of materials with high temperature resistance and low thermal conductivity such as heat insulation cotton. The top of the main body 1 can also be provided with at least one magnetic attraction piece 17 for magnetically attracting connection with the suction nozzle assembly 3 . In this embodiment, there are two magnetic attractors 17 , and the two magnetic attractors 17 can be embedded on the top of the bracket 12 and located on two opposite sides of the accommodating groove 120 .

As shown in FIGS. 2-6 , the nozzle assembly 3 in some embodiments may include a nozzle holder 32 and a nozzle 31 rotatably disposed on the nozzle holder 32 . The suction nozzle base 32 includes an air guide channel 320 connected with the heating assembly 2 , the suction nozzle 31 includes a rotating shaft 312 rotatably arranged on the suction nozzle base 32 and a suction nozzle extending laterally from the rotating shaft 312 311. The rotation centerline of the rotating shaft part 312 is eccentrically set relative to the centerline of the nozzle part 311 and the centerline of the nozzle holder 32 respectively. A suction channel 3110 is formed on the suction nozzle portion 311 . The inhalation channel 3110 communicates the air guide channel 320 with the outside world, so as to export the atomized gas generated by the atomization of the heating element 2 for the user to inhale. The air suction channel 3110 has an air suction end away from the rotating shaft portion 312 , and the suction nozzle portion 311 is capable of laterally rotating between a first position and a second position relative to the nozzle base 32 around the rotating shaft portion 312 . Wherein, when the suction channel 3110 is in the first position, the suction end of the suction channel 3110 retracts the suction nozzle seat 32; when the suction channel 3110 is in the second position, the suction end of the suction channel 3110 protrudes beyond the suction Out of the mouth seat 32.

In some embodiments, the air guiding channel 320 may include a first air guiding channel 3201 , a second air guiding channel 3202 , and a third air guiding channel 3203 connected sequentially from bottom to top. The first air guide channel 3201 can be formed by extending vertically upward from the bottom surface of the nozzle holder 32 , and it can be arranged coaxially with the main body 1 and the heating assembly 2 . The top of the nozzle holder 32 has a mounting surface 321, the third air guiding channel 3203 can be formed by extending downward from the mounting surface 321, and the center line of the third air guiding channel 3203 is eccentrically set relative to the center line of the first air guiding channel 3201 . In this embodiment, the installation surface 321 is an inclined surface and forms a certain angle with the horizontal plane, the extension direction of the third air guide channel 3203 is perpendicular to the installation surface 321 and forms a certain angle with the vertical direction, and the third The air guide channel 3203 is disposed on a relatively higher side of the installation surface 321 . In other embodiments, the installation surface 321 may also be parallel to the horizontal plane, and the extension direction of the third air guide channel 3203 may also be parallel to the vertical direction.

The rotating shaft portion 312 is rotatably disposed in the third air guide channel 3203 . An air flow channel 3120 communicating with the air guide channel 320 is formed on the rotating shaft portion 312 , and the air flow channel 3120 can be arranged coaxially with the third air guide channel 3203 . The air guide channel 320, the air flow channel 3120, and the suction channel 3110 are connected in sequence to form an air outlet channel for leading out the atomized gas. The suction nozzle portion 311 is roughly in the shape of an elliptical sheet, on which an air suction channel 3110 communicating with the air flow channel 3120 is formed along the length direction. The nozzle part 311 is installed on the installation surface 321 and can rotate 360 degrees in a plane coincident with or parallel to the installation surface 321 . When the nozzle part 311 is in the first position, the nozzle part 311 retracts the nozzle seat 32, and the outer edge of the nozzle part 311 coincides or roughly coincides with the outer edge of the mounting surface 321, which can greatly reduce the occupied space of the atomizing device , easy to store and carry. When the suction nozzle part 311 is in the second position, the suction end of the suction nozzle part 311 protrudes outside the nozzle seat 32 and extends obliquely upward, which is convenient for the user to suck food with the mouth. The structural configuration of the suction nozzle assembly can greatly extend the path of the outlet channel of the atomized gas, thereby greatly reducing the gas temperature when the atomized gas is discharged, and can make the space occupied by the atomization device smaller.

In some embodiments, the suction nozzle assembly 3 may also include a filter screen 35 arranged in the first air guide channel 3201, and a seal between the outer wall surface of the filter screen 35 and the inner wall surface of the first air guide channel 3201. The sleeve 34 , the snap ring 33 detachably engaged on the rotating shaft 312 , the sealing ring 36 sealingly sleeved on the rotating shaft 312 , and at least one magnetic attracting member 37 embedded in the bottom of the nozzle seat 32 .

Filter screen 35 can be pot shape, and it can adopt metal materials such as stainless steel to make. The filter 35 can filter out impurities doped in the atomized gas, preventing impurities from being sucked into the user's mouth, and improving user experience. The bottom wall of the filter screen 35 is provided with a plurality of filter holes 350 for air to pass through, and the atomized gas generated after the heating component 2 is atomized enters the air guide channel 320 through the filter holes 350 . An annular positioning flange 351 can protrude outward from the periphery of the upper end of the filter screen 35 , and the positioning flange 351 can abut against the upper end of the first air guide channel 3201 . The outer edge of the positioning flange 351 can be recessed inward to form at least one groove 3510 , which is convenient for the user to use tools such as tweezers to take out the filter screen 35 .

The sealing sleeve 34 is embedded in the lower part of the nozzle seat 32, and it can be made of elastic materials such as silica gel. The bottom surface of the sealing sleeve 34 extends upwards to form a ventilation groove 340 , the inner wall of the ventilation groove 340 defines a first air guide channel 3201 , and the filter 35 is tightly embedded in the ventilation groove 340 . The magnetic component 37 is used for magnetic connection with the main body 1 . In this embodiment, there are two magnetic attractors 37 and they are arranged on both sides of the first air guide channel 3201 respectively. connect.

A locking groove 3120 is formed on the rotating shaft portion 312 , and the snap ring member 33 is detachably locked in the locking groove 3120 for quick disassembly and assembly of the suction nozzle holder 32 and the suction nozzle 31 . The snap ring member 33 may include a split ring 331 and an extension portion 332 connected to the split ring 331 . The locking groove 3120 can be annular and formed by radially inwardly indenting the outer peripheral edge of the rotating shaft portion 312 . The split ring 331 is locked in the annular slot 3120 , the upper end of the split ring 331 abuts against the lower end of the third air guide channel 3203 , and the lower end of the split ring 331 abuts against the lower end of the annular slot 3120 . The extension part 332 can be formed by bending the side of the split ring 331 away from its opening obliquely downwards, and the extension part 332 can facilitate the user to disassemble and assemble the snap ring part 33 by hand. When the suction nozzle assembly 3 is disassembled, the sealing sleeve 34 can be taken out from the bottom of the suction nozzle seat 32 first, then the filter screen 35 and the sealing sleeve 34 can be detached, and the snap ring 33 can be detached from the rotating shaft portion 312. Then the suction nozzle 31 is removed from the top of the suction nozzle seat 32 . The structural design of the suction nozzle assembly allows it to be easily disassembled into individual parts, so that it can be soaked (such as alcohol) to clean the accumulated oil, dust, etc. of the parts after suction.

The sealing ring 36 can be in the shape of a ring and is sleeved in the annular groove 3120. The upper end surface of the sealing ring 36 is against the upper end surface of the annular groove 3120, and the lower end surface of the sealing ring 36 is in contact with the upper surface of the third air guide channel 3203. end faces against each other. The sealing ring 36 can be made of elastic materials such as silica gel, and cooperates with the snap ring member 33 to realize the axial positioning of the rotating shaft portion 312 in the third air guide passage 3203 .

As shown in FIGS. 7-9 , in some embodiments, the heating assembly 2 may include a heating body 20 , an upper cover 27 covering the heating body 20 , and a shunt net 25 disposed between the heating body 20 and the upper cover 27 . The heating body 20 may include a base 21 , a heating cover 22 disposed on the base 21 , and a heating element 231 disposed between the base 21 and the heating cover 22 .

In some embodiments, the heating element 231 may be a substantially U-shaped metal heating wire. Two electrode leads 232 are respectively welded to two ends of the heating element 231 , and the heating element 231 is electrically connected to the main board 15 through the two electrode leads 232 . Both the heating cover 22 and the base 21 can be made of materials such as ceramics with high temperature resistance and low thermal conductivity, and a roughly U-shaped heating cavity 2210 is formed between the heating cover 22 and the base 21 . The heating element 231 is disposed in the heating chamber 2210, and can heat the air in the heating chamber 2210 after being energized to generate heat. At least one air inlet 2220 is opened on the side walls of the base 21 and the heating cover 22 to communicate the heating chamber 2210 with the outside. In this embodiment, there are two gas inlets 2220, and the two electrode lead wires 232 can be led out from the two gas inlets 2220 respectively. Understandably, in other embodiments, the air inlet 2220 may also be formed only on the side wall of the base 21 or the heating cover 22 , or the air inlet 2220 may also be formed on the bottom wall of the base 21 .

A confluence hole 2250 is formed longitudinally through the heating cover 22 , and the heating chamber 2210 surrounds the confluence hole 2250 . A confluence groove 2230 connecting the heating chamber 2210 with the confluence hole 2250 is also formed between the heating cover 22 and the base 21. The air introduced through the two air inlets 2220 is heated by the heating element 231 in the heating chamber 2210 to form hot air. The hot air is collected by the confluence groove 2230 and then flows to the confluence hole 2250 . In this embodiment, both the heating cavity 2210 and the confluence groove 2230 can be formed at the bottom of the heating cover 22, and the confluence groove 2230 can be connected to the side of the confluence hole 2250 away from the two air inlets 2220 and along the length of the heating cover 22. direction extension.

In some embodiments, the base 21 may include a plate-shaped base portion 211 and an annular wall portion 212 extending upward from the outer periphery of the base portion 211 . The heating cover 22 is disposed in the wall portion 212 and can lean against the base portion 211 . The outer wall of the heating cover 22 can protrude outwards to form at least one heat-insulating protrusion 2211, and the heating cover 22 abuts against the inner wall of the wall 212 through the at least one heat-insulating protrusion 2211 to prevent the outer wall of the heating cover 22 from The direct contact with the inner wall surface of the wall portion 212 facilitates heat insulation between the heating cover 22 and the base 21 . The upper end surface of the base 211 can protrude upwards to form at least one heat insulating rib 2111, and the lower end of the heating element 231 is mounted against the at least one heat insulating rib 2111, which can greatly reduce the distance between the heating element 231 and the base 21. The direct contact area is good for heat insulation. The lower end surface of the heating cover 22 can protrude downward to form at least one heat-insulating rib 2212, and the upper end of the heating element 231 is mounted against the at least one heat-insulating rib 2212, thereby greatly reducing the interaction between the heating element 231 and heat generation. The direct contact area between the covers 22 is good for heat insulation. In this embodiment, there are three heat-insulating ribs 2111 and three heat-insulating ribs 2212 respectively, and they can be provided in one-to-one correspondence.

The distribution net 25 is disposed above the heating cover 22 , and includes a distribution area S with a plurality of air holes 250 distributed therein. A diffusion chamber 2260 is formed between the heating cover 22 and the distribution net 25. After the hot air flowing out from the confluence hole 2250 is diffused in the diffusion chamber 2260, it is redistributed through a plurality of airflow holes 250 on the distribution net 25 to make the mist The heating of the chemical medium is more uniform. In this embodiment, the shunt net 25 is flat and can be made of metal materials such as stainless steel. The top surface of the heating cover 22 is recessed to form a diffusion cavity 2260 , and the central axis of the diffusion cavity 2260 may coincide with the central axis of the confluence hole 2250 .

The distribution area S is set corresponding to the diffusion chamber 2260 , and the shape and area of the distribution area S may be consistent with or approximately the same as the cross-sectional shape and area of the diffusion chamber 2260 . The diversion area S may include a central area S1 at the center and a peripheral area S2 surrounding the central area S1. The distribution density of the plurality of airflow holes 250 in the central area S1 is smaller than that in the peripheral area S2 , forming a mesh structure with a sparse center and a dense ring. Since the hot air flowing out through the confluence hole 2250 and diffused into the diffusion chamber 2260 will cause a relatively high pressure in the middle and a small pressure in the circle, by setting the mesh structure to be sparse in the middle and dense in the circle, the air passing through the central area S1 and the surrounding The flow distribution of the hot air flowing out of the air holes 250 in the zone S2 is more uniform, so that the heating of the atomizing medium is more uniform. In this embodiment, the plurality of airflow holes 250 on the central area S1 are evenly spaced, and the plurality of airflow holes 250 on the peripheral area S2 are evenly spaced. In other embodiments, the distribution density of the plurality of airflow holes 250 on the flow splitting area S may gradually increase from the center to the periphery.

In some embodiments, the heating body 20 may further include a temperature measuring element 233 for measuring the temperature of the air in the heating assembly 2 . The temperature measuring element 233 can generally be a temperature sensor such as a thermistor. The temperature measuring element 233 can be disposed on the lower side of the heating cover 22 for measuring the air temperature at the inlet of the confluence hole 2250 . The bottom of the heating cover 22 can be formed with a wire groove 2240 for installing the temperature measuring element 233 , and the wire groove 2240 and the confluence groove 2230 can be respectively arranged on two opposite sides of the confluence hole 2250 . In some other embodiments, the temperature measuring element 233 can also be arranged on the upper side of the heating cover 22 for measuring the air temperature at the outlet of the confluence hole 2250, and the top of the heating cover 22 can also be formed with a mounting hole for the temperature measuring element 233. Wire slot 2270.

The loam cake 27 is set on the top of the heating cover 22 and the shunt net 25, and it can be made of high-temperature-resistant, low-thermal-conduction materials such as steatite porcelain. In some embodiments, the upper cover 27 may include a first cover 271 located at the lower part with a larger external dimension and a second cover 272 located at the upper part with a smaller external dimension. The bottom surface of the first cover 271 is concavely formed with a cavity 2710 , and the top surface of the second cover 272 is concavely formed with an atomizing cavity 2720 communicating with the cavity 2710 . The atomization chamber 2720 can be used to place the atomization medium, and the cross-sectional size of the atomization chamber 2720 can be smaller than the cross-sectional size of the cavity 2710 . The upper part of the heating cover 22 is set in the cavity 2710, and the heating cover 22 abuts against the cavity wall of the cavity 2710 through the heat insulating protrusion 2211, so as to avoid direct contact between the outer wall surface of the heating cover 22 and the inner wall surface of the cavity 2710 for heat transfer . The outer peripheral edge of the shunt net 25 can protrude outward to form at least one limiting protrusion 251, and the shunt net 25 abuts against the inner wall surface of the cavity 2710 through the at least one limiting protrusion 251, which can greatly reduce the size of the shunt net 25. The direct contact area with the upper cover 27 is conducive to heat insulation. In this embodiment, there are a plurality of limiting protrusions 251 distributed around the distribution network 25 at intervals. A gasket 24 may also be provided between the distribution network 25 and the upper cover 27 , and/or between the distribution network 25 and the heating cover 22 . The gasket 24 can be in the shape of an annular sheet, which can be made of high temperature resistant elastic materials such as silica gel.

In some embodiments, the heating assembly 2 may further include a replaceable filter screen 26 disposed above the distribution screen 25 . A ventilation gap 260 is formed between the bottom surface of the replaceable filter screen 26 and the top surface of the distribution screen 25 , and a plurality of first filter holes 2610 for air flow are distributed on the replaceable filter screen 26 . The replaceable filter screen 26 can be made of high-temperature-resistant metal materials such as stainless steel, and is used to place solid atomizing media such as grass blades, and the replaceable filter screen 26 can be taken out after the atomizing medium is heated, which is convenient for disposal or convenient The user cleans and uses repeatedly, reducing the pollution to the shunt network 25 . The replaceable filter screen 26 is detachably arranged in the atomization chamber 2720, and the outer edge of the replaceable filter screen 26 can be concavely formed with at least one groove 2611, so that the overall cross-sectional area of the replaceable filter screen 26 is smaller than that of the atomization chamber The overall cross-sectional area of 2720. The at least one groove 2611 is convenient for the user to use tools such as tweezers to take out the replaceable filter screen 26, and can reduce the contact area between the replaceable filter screen 26 and the upper cover 27, which is beneficial to heat insulation. In this embodiment, there are multiple grooves 2611 and are distributed around the replaceable filter screen 26 at intervals.

The replaceable filter screen 26 is in the form of a flat plate in this embodiment, and its shape and size may be consistent with or roughly consistent with the shape and size of the distribution area S of the distribution network 25 . The replaceable filter screen 26 includes a first area A1 at the center and a second area A2 surrounding the first area A1. The first area A1 and the second area A2 are set corresponding to the central area S1 and the peripheral area S2 respectively, and the distribution density of the plurality of first filter holes 2610 in the first area A1 is smaller than that in the second area A2, forming an intermediate The sparse and dense mesh structure is conducive to a more uniform distribution of hot air flow and a more uniform heating of the atomizing medium. In this embodiment, the plurality of first filter holes 2610 on the first area A1 are evenly spaced, and the plurality of first filter holes 2610 on the second area A2 are evenly spaced. In other embodiments, the distribution density of the plurality of first filter holes 2610 on the replaceable filter screen 26 may gradually increase from the center to the periphery.

In some embodiments, the heating assembly 2 may further include a sealing ring 28 sleeved on the second cover 272 and a locking member 29 for locking the upper cover 27 and the base 21 . The sealing ring 28 can be annular and can be made of high temperature resistant elastic material such as silica gel. The locking member 29 can be made of high temperature resistant metal materials such as stainless steel. The locking member 29 is in the shape of a square ring with an opening on one side, and may include a bottom wall 291 and two L-shaped locking arms 292 extending upward from two ends of the bottom wall 291 . The locking member 29 is hugged on the base 21 and the first cover 271 to lock the upper cover 27 and the base 21 .

Figures 10-11 show the heating assembly 2 in the second embodiment of the present invention. The main difference between it and the first embodiment is that in this embodiment, the temperature measuring element 233 is arranged on the upper side of the heating cover 22. To measure the air temperature at the exit of the manifold 2250. In addition, the replaceable filter screen 26 in this embodiment may include a flat bottom wall 261 and a cylindrical protrusion 2612 extending upward from the bottom wall 261 . The bottom wall 261 is distributed with a plurality of first filter holes 2610 for air to pass through, and the distribution of the plurality of first filter holes 2610 on the bottom wall 261 can be similar to the distribution of the flat replaceable filter screen 26 in the first embodiment , which will not be described in detail here. The outer edge of the bottom wall 261 is concavely formed with at least one groove 2611, so that users can use tools such as tweezers to take out the replaceable filter screen 26, and can reduce the contact area between the replaceable filter screen 26 and the upper cover 27. Good for heat insulation. The bottom surface of the bottom wall 261 can also protrude downwards to form at least one protrusion 2614 , and the replaceable filter screen 26 can lean against the distribution net 25 through the protrusion 2614 . In this embodiment, there are four protrusions 2614 located at four corners of the protruding portion 2612 respectively.

The protruding part 2612 is in the shape of an inverted hollow cylinder, and a plurality of second filter holes 2613 for air flow are distributed on the side wall and the top wall. The hot air can flow into the atomization cavity 2720 through the plurality of second filter holes 2613 to increase the contact area with the atomization medium and make the heating and atomization more uniform.

12-13 show the heating assembly 2 in the third embodiment of the present invention. The main difference between it and the first embodiment is that in this embodiment, the temperature measuring element 233 is arranged on the upper side of the heating cover 22 for use in To measure the air temperature at the exit of the manifold 2250. In addition, the replaceable filter screen 26 in this embodiment is in the shape of a pot, which may include a flat bottom wall 261 , a cylindrical side wall 262 extending upward from the outer periphery of the bottom wall 261 , and an upper end of the cylindrical side wall 262 . An annular flange 263 extending outward from the periphery. The bottom wall 261 is distributed with a plurality of first filter holes 2610 for air to pass through, and the distribution of the plurality of first filter holes 2610 on the bottom wall 261 can be similar to the distribution of the flat replaceable filter screen 26 in the first embodiment , which will not be described in detail here. The flange 263 can abut against the upper surface of the heating cover 22 , which facilitates the installation and positioning of the replaceable filter screen 26 in the atomizing chamber 2720 .

The cylindrical sidewall 262 may be approximately funnel-shaped, and its cross-sectional dimension gradually decreases from top to bottom. A plurality of third filter holes 2620 for air flow are distributed on the cylindrical side wall 262, and an air flow gap 2621 is formed between the cylindrical side wall 262 and the inner wall of the atomization chamber 2720, and hot air can pass through the air flow gap 2621 in sequence , The third filter hole 2620 flows into the atomization cavity 2720, making the heating and atomization more uniform. In addition, the cylindrical side wall 262 is not in contact with the upper cover 27 , which is beneficial to heat insulation between the replaceable filter 26 and the upper cover 27 .

Fig. 14 shows the heating assembly 2 in the fourth embodiment of the present invention. The main difference between it and the first embodiment is that the heating assembly 2 in this embodiment also includes The paste guide body 26a of the atomized medium, so that a replaceable filter screen 26 can be unnecessary. The paste guiding body 26a can adopt an adsorption structure with a capillary adsorption function, so as to absorb the melting liquid after the paste-like atomizing medium is heated and melted, so as to prevent the melting liquid from flowing to the shunt network 25 .

It can be understood that the above technical features can be used in any combination without limitation.

Above embodiment has only expressed the preferred embodiment of the present invention, and its description is comparatively specific and detailed, but can not therefore be interpreted as the limitation of patent scope of the present invention; It should be pointed out that, for those of ordinary skill in the art, in Under the premise of not departing from the concept of the present invention, the above-mentioned technical features can be freely combined, and some deformations and improvements can also be made, which all belong to the protection scope of the present invention; therefore, all equivalent transformations made with the scope of the claims of the present invention All modifications and modifications shall fall within the scope of the claims of the present invention.

Claims

A heating assembly, characterized by comprising a heating body (20) and a shunt network (25) arranged on the heating body (20);

A confluence hole (2250) is formed on the heat generating body (20), and a diffusion chamber (2260) communicating with the confluence hole (2250) is formed between the heat generating body (20) and the distribution network (25). ); the distribution network ( 25 ) includes a distribution area (S) corresponding to the diffusion chamber ( 2260 ), and a plurality of airflow holes ( 250 ) for airflow are distributed on the distribution area (S).
The heating assembly according to claim 1, characterized in that the diffusion cavity (2260) is formed by a concave top surface of the heating body (20).
The heating assembly according to claim 1, characterized in that, the central axis of the confluence hole (2250) coincides with the central axis of the diffusion cavity (2260).
The heating assembly according to claim 1, characterized in that, the diversion area (S) includes a central area (S1) located at the center and a peripheral area (S2) surrounding the central area (S1), a plurality of the The distribution density of airflow holes (250) in the central area (S1) is smaller than the distribution density in the peripheral area (S2).
The heating assembly according to claim 1, characterized in that, the heating body (20) comprises a base (21), a heating cover (22) set on the base (21), and a heating cover (22) set on the base (21). ) and the heating element (231) between the heating cover (22) and in air communication with the confluence hole (2250).
The heating assembly according to claim 5, characterized in that a heating cavity (2210) for placing the heating element (231) is formed between the base (21) and the heating cover (22), the The heating chamber (2210) surrounds the confluence hole (2250) and communicates with the confluence hole (2250).
The heating assembly according to claim 6, characterized in that, there is also formed between the base (21) and the heating cover (22) to connect the heating cavity (2210) with the confluence hole (2250) At least one air inlet (2220) connecting the heating chamber (2210) with the outside is formed on the base (21) and/or the heating cover (22).
The heating assembly according to claim 7, characterized in that there are two air inlets (2220), and the two electrode leads (232) respectively connected to the two ends of the heating element (231) Each of the air inlets (2220) leads out.
The heating assembly according to any one of claims 1-8, characterized in that the heating assembly further comprises an upper cover (27) covering the heating body (20) and the distribution network (25) , the upper cover (27) is formed with an atomization chamber (2720) communicating the diffusion chamber (2260) with the outside world.
The heating assembly according to claim 9, characterized in that, at least one stop protrusion (251) is formed on the outer edge of the shunt net (25), and the at least one stop protrusion (251 ) against the inner wall of the upper cover (27).
The heating assembly according to claim 9, characterized in that, the heating assembly also includes a heating element that is hugged outside the upper cover (27) and the heating body (20) and connects the upper cover (27) and the The locking part (29) locked by the heating body (20).
The heating assembly according to any one of claims 1-8, characterized in that, the heating assembly further comprises a replaceable filter screen (26) arranged above the shunt screen (25) for placing the atomizing medium ; The replaceable filter screen (26) includes a bottom wall (261), and a plurality of first filter holes (2610) for air flow are distributed on the bottom wall (261).
The heating assembly according to claim 12, characterized in that a ventilation gap (260) is formed between the replaceable filter screen (26) and the distribution screen (25).
The heating assembly according to claim 12, characterized in that, the replaceable filter screen (26) comprises a first area (A1) in the center and a second area (A2) surrounding the first area (A1) , the distribution density of the plurality of first filter holes (2610) in the first area (A1) is smaller than the distribution density in the second area (A2).
The heating assembly according to any one of claims 1-8, characterized in that the heating assembly further comprises a paste guide disposed above the distribution network (25) for placing a paste-like atomizing medium.
An atomizing device, characterized in that it comprises a main body (1), a heating assembly set in the main body (1) according to any one of claims 1-15, and a heating element set above the main body (1). Nozzle assembly (3).