CN218354690U - Atomization structure and atomizer - Google Patents

Abstract

An atomizing structure and an atomizer, the atomizing structure comprising: the head end of the oil storage tank is provided with an air outlet, and the tail end of the oil storage tank is provided with an air inlet. And the atomizing core is positioned in the oil storage tank and is close to one side of the tail end of the oil storage tank. The atomizing core comprises a hollow tubular double-layer liquid guide base body and a heating body. The double-layer liquid-guiding matrix comprises an outer-layer liquid-guiding matrix and an inner-layer liquid-guiding matrix. And the breather pipe is positioned in the oil storage tank, one end of the breather pipe is connected with the head end of the oil storage tank, and the other end of the breather pipe is connected with the atomizing core. Breather pipe, oil storage tank and atomizing core enclose to close and form the stock solution storehouse that is used for placing the atomized liquid. The liquid guiding speed of the outer layer liquid guiding matrix is greater than that of the inner layer liquid guiding matrix. The outer-layer liquid guide substrate can quickly guide the atomized liquid to the inner-layer liquid guide substrate, and has better liquid guide performance. The inner layer liquid guiding matrix has slow liquid guiding speed but better liquid locking performance. The atomizing structure can give consideration to both liquid guiding performance and liquid locking performance through the double-layer liquid guiding substrate.

Description

Atomization structure and atomizer

Technical Field

The application relates to the technical field of atomization devices, in particular to an atomization structure and an atomizer.

Background

The atomizing cores used in the current commercial atomizers are all single-layer porous structures as shown in fig. 1. The hole on the core will atomize on will atomizing the liquid and lead heater 10, adopt the atomizing core of this kind of structure although compare as atomizing core with adopting the cotton material, the processing production of being convenient for is improved to some extent. However, problems have been found in the practical use of the atomizing core having a single-layer porous structure. Generally, when the liquid guiding speed of the atomizing core is slow, the liquid guiding amount cannot be kept up, and the core burning phenomenon is easy to occur. Therefore, in order to avoid the burnt core phenomenon, the atomization core has a higher liquid guiding speed by adjusting the pore size and the porosity on the atomization core. But when the liquid guiding speed is increased, the oil locking capacity of the atomizing core is not good, and the oil leakage problem is easy to occur. For reducing the oil leak risk, prior art twines the non-woven fabrics in the atomizing core outside to reduce oil leak probability, but fail to solve the oil leak problem completely, simultaneously because the outsourcing non-woven fabrics operation degree of difficulty is big, very big influence production efficiency.

SUMMERY OF THE UTILITY MODEL

The application provides an atomizing structure and atomizer, its main aim at provide one kind can compromise the atomizing structure of drain performance and lock oil performance.

An embodiment of the present application provides an atomizing structure, including:

the oil storage tank is provided with a head end at one end and a tail end at the other end, the head end is provided with an air outlet, and the tail end is provided with an air inlet;

the atomizing core is positioned in the oil storage tank and close to one side of the tail end of the oil storage tank, and the atomizing core comprises a hollow tubular double-layer liquid guiding base body and a heating body arranged on the double-layer liquid guiding base body; the double-layer drainage base body comprises an outer-layer drainage base body and an inner-layer drainage base body which are distributed from outside to inside, and micro pores are formed in the outer-layer drainage base body and the inner-layer drainage base body; and

the air pipe is positioned in the oil storage tank, one end of the air pipe is connected with the head end of the oil storage tank, the other end of the air pipe is connected with the atomizing core, one end of the air pipe is communicated with the air inlet through the inner-layer liquid guide base body, the other end of the air pipe is communicated with the air outlet, an air passage is formed in the air pipe, and the air pipe, the oil storage tank and the atomizing core are enclosed to form a liquid storage bin for containing atomized liquid;

the double-layer liquid guiding base body is used for guiding the atomized liquid to the heating body, the heating body is used for heating the atomized liquid, and the liquid guiding speed of the outer-layer liquid guiding base body is larger than that of the inner-layer liquid guiding base body.

In one embodiment, one end of the vent pipe is hermetically connected with the atomizing core.

In one embodiment, a first sealing ring is arranged between the atomizing core and the vent pipe, and a second sealing ring is arranged between the atomizing core and the oil storage tank.

In one embodiment, the axial length of the outer liquid-guiding substrate is the same as that of the inner liquid-guiding substrate, the outer liquid-guiding substrate or the inner liquid-guiding substrate faces towards the first end side and is provided with an annular boss, the annular boss is sleeved with the vent pipe, and the first sealing ring is arranged between the vent pipe and the annular boss.

In one embodiment, the axial length of the outer liquid-guiding substrate is greater than that of the inner liquid-guiding substrate, a space recessed towards one side of the tail end of the oil storage tank is formed between the outer liquid-guiding substrate and the inner liquid-guiding substrate on the side far away from the tail end, and the end part of the vent pipe is arranged in the outer liquid-guiding substrate and is abutted against the end face of the inner liquid-guiding substrate; the first sealing ring is arranged between the inner wall of the outer liquid guide base body and the vent pipe.

In one embodiment, the outer liquid-guiding substrate is divided into a first substrate and a second substrate which are integrally connected from the head end of the oil storage tank to the tail end side of the oil storage tank, the first substrate is in a conical shape, and the second substrate is in a columnar shape.

In one embodiment, the outer liquid-conducting matrix has a porosity greater than the porosity of the inner liquid-conducting matrix, and the outer liquid-conducting matrix has an average pore size greater than the average pore size of the inner liquid-conducting matrix.

In one embodiment, the outer liquid-conducting substrate and the inner liquid-conducting substrate are both solid substrates, the porosity of the outer liquid-conducting substrate is not less than 60%, and the porosity of the inner liquid-conducting substrate is 40-58%; the average pore diameter of the micro pores on the outer liquid guiding substrate is 50-300 microns, and the average pore diameter of the micro pores on the inner liquid guiding substrate is 8-25 microns.

In one embodiment, the heating element is fixed on the inner wall of the inner liquid-guiding base body, and the heating element is in any one of a filament shape, a net shape and a sheet shape.

An atomizer comprises the atomization structure.

According to the atomization structure in the above embodiment, the double-layer liquid-guiding substrate is divided into an inner layer and an outer layer, i.e., an outer layer liquid-guiding substrate and an inner layer liquid-guiding substrate, and the liquid-guiding speed of the outer layer liquid-guiding substrate is greater than that of the inner layer liquid-guiding substrate. The atomized liquid can be quickly guided to the inner liquid guiding substrate through the outer liquid guiding substrate, and the liquid guiding substrate has better liquid guiding performance. The inlayer drain base member footpath is upwards more being close to air flue one side relatively, and the atomizing liquid that the inlayer drain base member led in the atomizing liquid that comes or the stock solution storehouse on with outer drain base member transmits to heat-generating body one side, and inlayer drain base member is outer drain base member drain speed slow a little relatively, nevertheless has better lock liquid performance, effectively avoids atomizing core weeping problem. Therefore, the atomization structure can have both liquid guiding performance and liquid locking performance through the double-layer liquid guiding base body. With the atomizing core setting on the tail end in the batch oil tank, breather pipe, batch oil tank and atomizing core three enclose to close and form the stock solution storehouse, the inner wall contact that atomizing core and breather pipe contact formed seal structure, atomizing core and batch oil tank promptly forms seal structure, and then forms the stock solution storehouse that can store the atomized liquid. The atomized liquid in the liquid storage bin is always between the head end of the oil storage tank and the atomizing core. Even the atomizing liquid in the in-process stock solution storehouse of using atomizing structure constantly reduces like this, exists atomizing liquid between the head end of atomizing core and batch oil tank all the time, atomizing core can be to heat-generating body one side transmission atomizing liquid all the time, and the dry combustion method phenomenon can not appear in atomizing structure, effectively ensures the heat generating rate of heat-generating body. The atomizing core both ends of this application design need not with head end, the tail end looks butt in the batch oil tank, set up tail end one side in the batch oil tank can, be convenient for processing, assembly. The designed atomization structure is convenient for automatic batch processing and can improve the processing efficiency.

Drawings

FIG. 1 is a schematic view of a conventional atomizing core;

FIG. 2 is a schematic perspective view of an atomizing structure according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of an atomizing structure in an embodiment of the present application;

FIG. 4 is a schematic diagram of an exploded view of an atomizing core according to an embodiment of the present application;

FIG. 5 is a schematic sectional view of an atomizing core according to an embodiment of the present application;

FIG. 6 is a schematic flow chart of a method for processing an atomizing core in accordance with example 1 of the present application;

FIG. 7 is a schematic flow chart of a method for processing an atomizing core in accordance with example 2 of the present application;

FIG. 8 is a schematic view of the microstructure of the atomizing core prepared in example 1 of the present application.

Description of reference numerals: 10. the heating device comprises a heating wire, 20 an oil storage tank, 21 a head end, 22 a tail end, 23 an air outlet, 24 an air inlet, 30 an atomizing core, 31 a heating body, 32 an outer layer liquid guide base body, 321 a first base body, 322 a second base body, 323 a first channel, 324 a second channel, 33 an inner layer liquid guide base body, 331 a third channel, 34 a first sealing ring, 35 a second sealing ring, 36 an annular boss and 40 an air pipe.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the described features, operations, or characteristics may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the description of the methods may be transposed or transposed in order, as will be apparent to a person skilled in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

Referring to fig. 2-3, in one embodiment, an atomizing structure includes: reservoir 20, atomizing core 30, and vent tube 40. One end of the oil storage tank 20 is a head end 21, the other end is a tail end 22, an air outlet 23 is formed in the head end 21, and an air inlet 24 is formed in the tail end 22. Atomizing core 30 is located the batch oil tank 20 to be close to tail end one side of batch oil tank 20, atomizing core 30 includes the double-deck drain base member of hollow tube form and sets up the heat-generating body 31 on the double-deck drain base member. The double-layer liquid guiding base body comprises an outer-layer liquid guiding base body 32 and an inner-layer liquid guiding base body 33 which are distributed from outside to inside, and microscopic pores are formed in the outer-layer liquid guiding base body 32 and the inner-layer liquid guiding base body 33. The breather pipe 40 is located the batch oil tank 20, and the one end of breather pipe 40 and the head end of batch oil tank 20 are connected, and the other end and the atomizing core 30 of breather pipe 40 are connected, and the one end of breather pipe 40 is passed through inlayer drain base member 33 and air inlet 24 intercommunication, and the other end and the gas outlet 23 intercommunication of breather pipe 40 are used for forming the air flue in the breather pipe 40, and breather pipe 40, batch oil tank 20 and atomizing core 30 enclose to close the stock solution storehouse that forms and be used for placing the atomized liquid. The double-layer liquid guiding matrix is used for guiding the atomized liquid to the heating body 31, the heating body 31 is used for heating the atomized liquid, and the liquid guiding speed of the outer-layer liquid guiding matrix 32 is larger than that of the inner-layer liquid guiding matrix 33.

By adopting the atomization structure in the above embodiment, the double-layer liquid-guiding substrate is divided into an inner layer and an outer layer, namely, the outer-layer liquid-guiding substrate 32 and the inner-layer liquid-guiding substrate 33, and the liquid-guiding speed of the outer-layer liquid-guiding substrate 32 is greater than that of the inner-layer liquid-guiding substrate 33. The atomized liquid can be quickly guided to the inner liquid guiding substrate 33 through the outer liquid guiding substrate 32, and the liquid guiding performance is good. Inlayer drain base member 33 is upwards more being close to air flue one side relatively, and the atomizing liquid that inlayer drain base member 33 led in the atomizing liquid or the stock solution storehouse that comes on with outer drain base member 32 transmits to heat-generating body 31 one side, and inlayer drain base member 33 is slow some for outer drain base member 32 drain speed relatively, nevertheless has better lock liquid performance, effectively avoids atomizing core 30 weeping problem. Therefore, the atomization structure can have both liquid guiding performance and liquid locking performance through the double-layer liquid guiding base body. With atomizing core 30 setting on tail end 22 in the batch oil tank 20, breather pipe 40, batch oil tank 20 and atomizing core 30 three enclose to close and form the stock solution storehouse, the inner wall contact formation seal structure of atomizing core 30 and breather pipe 40 contact formation seal structure, atomizing core 30 and batch oil tank 20 promptly, and then form the stock solution storehouse that can store the atomized liquid. The atomized liquid in the liquid storage bin is always between the head end 21 of the oil storage tank 20 and the atomizing core 30. Even the atomizing liquid in the in-process stock solution storehouse that uses atomizing structure constantly reduces like this, there is atomizing liquid all the time between the head end 21 of atomizing core 30 and batch oil tank 20, atomizing core 30 can be to heat-generating body 31 one side transmission atomizing liquid all the time, and the dry combustion method phenomenon can not appear in atomizing structure, effectively ensures heat-generating body 31's heat productivity. The atomizing core 30 both ends of this application design need not with head end 21, the tail end 22 looks butt in the batch oil tank 20, set up in the batch oil tank 20 tail end 22 one side can, be convenient for processing, assembly. The designed atomization structure is convenient for automatic batch processing and can improve the processing efficiency.

In another embodiment, when one end of the atomizing core 30 abuts against the head end 21 in the oil reservoir 20 and the other end of the atomizing core 30 abuts against the tail end 22 in the oil reservoir 20, a reservoir is formed by enclosing the outer wall of the atomizing core 30 and the inner wall of the oil reservoir 20. First, when the both ends of atomizing core 30 and head end 21, the tail end 22 of batch oil tank 20 butt respectively, atomizing core 30 occupies greatly in the stock solution storehouse space between head end 21 and the tail end 22, and then influences the capacity in stock solution storehouse. Under the condition that the atomizing structure is small, the capacity in the liquid storage bin is more limited, and the miniaturization design of the atomizing structure is not facilitated. In the second aspect, as the usage time is accumulated, the atomized liquid in the liquid storage bin is continuously reduced, and the liquid level of the atomized liquid is continuously close to the tail end 22 side of the oil storage tank 20. At this moment, the atomizing structure is used, the atomizing core 30 is close to the first end 21 side of the oil storage tank 20 and will not contact with the atomized liquid, and no atomized liquid or a small amount of atomized liquid is conducted to the heating element 31 close to the first end 21 side of the oil storage tank 20, but the heating element 31 of the part can be continuously heated, namely the heating element 31 of the part can generate heat in an ineffective way, similar dry burning can affect the use taste of the atomized liquid, and even can generate burnt flavor.

In the present embodiment, the outer layer liquid-guiding substrate 32 and the inner layer liquid-guiding substrate 33 are both solid substrates, for example, the outer layer liquid-guiding substrate 32 and the inner layer liquid-guiding substrate 33 are both made of ceramic materials. The heating element 31 is fixed to the inner wall of the inner layer liquid-guiding substrate 33, and the heating element 31 is in any one of a filament shape, a mesh shape, and a sheet shape. The heating element 31 may be fixed to the surface of the inner liquid-guiding substrate 33 or may be fixed to the inner wall of the inner liquid-guiding substrate 33 by being fitted thereto. The heating body 31 is provided with two leads which are used for being connected with the anode and the cathode of a power supply, the power supply supplies power to the heating body 31, the heating body 31 converts electric energy into heat energy, and then the atomized liquid is heated and atomized. Taking the wire-shaped heating element 31 as an example, first, the material of the heating element 31 includes, but is not limited to, at least one of ferrochromium aluminum, ferrochromium, and stainless steel, the material selected for the lead wire is a nickel wire, and two lead wires are welded to both ends of the heating element 31, respectively. Secondly, the diameter of the heating element 31 is between 0.1 and 0.5mm, the diameter of the lead is between 0.1 and 0.5mm, the resistance range of the heating element 31 is between 0.3 and 2.0 omega, and the corresponding resistance value is selected according to different atomization requirements during actual use.

Wherein, the breather pipe 40 selects the glass fiber tube, and the atomizing core 30 is the ceramic core. The vent pipe 40, the atomizing core 30 and the oil storage tank 20 are all made of hard materials, so if a better sealing property is required between the vent pipe 40 and the atomizing core 30 and between the atomizing core 30 and the oil storage tank 20 to avoid the problem of oil leakage at the contact position, the atomizing core 30, the vent pipe 40 and the oil storage tank 20 need to have higher processing precision. When high precision machining of the parts is used, higher costs are incurred. In addition, the atomization structure is not easy to assemble and is easy to damage in the process of installing the atomization structure. In order to save the cost of the atomization structure and realize simple installation of the atomization structure on the premise of ensuring the sealing performance between the atomization core 30 and the vent pipe 40 and between the atomization core 30 and the oil storage tank 20, and parts are not damaged. In the present embodiment, a first seal 34 is provided between the atomizing core 30 and the vent pipe 40, and a second seal 35 is provided between the atomizing core 30 and the oil reservoir 20. For example, a silicone material is selected to make the first seal ring 34 and the second seal ring 35. When the first sealing ring 34 and the second sealing ring 35 are assembled, the first sealing ring and the second sealing ring are extruded and deformed under stress, so that the atomization structure is assembled conveniently, and the sealing performance of a joint can be ensured. And through set up first sealing washer 34 between atomizing core 30 and breather pipe 40, set up second sealing washer 35 between atomizing core 30 and storage tank 20, can reduce the machining precision of storage tank 20, atomizing core 30 and breather pipe 40, and then reduce the cost of atomizing structure.

The vent tube 40 and the atomizing core 30 are sealingly connected, for example in a male-female fit.

For example, in some embodiments, the axial length of outer fluid-conducting base 32 is greater than the axial length of inner fluid-conducting base 33. A space recessed toward the tail end 22 side of the oil storage tank 20 is formed between the outer layer liquid guiding base 32 and the inner layer liquid guiding base 33 on the side away from the tail end 22, and the end of the breather pipe 40 is placed in the outer layer liquid guiding base 32 and abuts against the end face of the inner layer liquid guiding base 33. A first seal 34 is disposed between the inner wall of outer liquid-conducting base 32 and vent tube 40. Specifically, referring to FIG. 4, the axial length is in the direction shown by the dotted line. The upper side of the outer layer liquid guiding basal body 32 is provided with a first channel 323, the lower side is provided with a second channel 324, and the inner layer liquid guiding basal body 33 is provided with a third channel 331. Taking the cylindrical vent tube 40 as an example, the first, second and third passages 323, 324, 331 are also all cylindrical. The diameter of first passage 323 is greater than the outer diameter of vent tube 40, the diameter of second passage 324 is equal to the outer diameter of inner drainage base 33, and the inner diameter of inner drainage base 33, i.e., the diameter of third passage 331, is less than the diameter of first passage 323. Based on the size relation, the end part of the breather pipe 40 is arranged in the first passage 323 and is abutted with the annular end surface of the inner liquid guiding base body 33 close to the upper side, and the first passage 323, the third passage 331 and the air passage in the breather pipe 40 share one axis. With this sizing, on the one hand, the end surface of the inner liquid-guiding substrate 33 is abutted against the vent pipe 40, and no additional structure (such as a convex ring) is required to be arranged in the first channel 323 to abut against the vent pipe 40, so that the structure of the atomizing core 30 is simplified, and on the other hand, the inner liquid-guiding substrate 33 and the outer liquid-guiding substrate 32 can be processed conveniently.

For another example, in other embodiments, the outer liquid guiding substrate 32 and the inner liquid guiding substrate 33 have the same axial length, an annular boss 36 is disposed on the side of the outer liquid guiding substrate 32 or the inner liquid guiding substrate 33 facing the head end 21, the vent pipe 40 is sleeved on the annular boss 36, and the first sealing ring 34 is disposed between the vent pipe 40 and the annular boss 36. Specifically, referring to fig. 5, a first channel 323 is formed on the outer liquid guiding substrate 32, a third channel 331 is formed on the inner liquid guiding substrate 33, and an integrally connected annular boss 36 is disposed on the upper side of the inner liquid guiding substrate 33. Take for example a cylindrical first passage 323, a third passage 331, an annular boss 36 and a breather tube 40. The diameter of the first channel 323 is equal to the outer diameter of the inner liquid-conducting base 33. The inner diameter of annular projection 36 is greater than, equal to, or less than the inner diameter of inner drainage base 33 (i.e., the diameter of third passageway 331), and the outer diameter of annular projection 36 is greater than the inner diameter of inner drainage base 33. The inner diameter of the vent pipe 40 is larger than the outer diameter of the annular boss 36, and the outer diameter of the vent pipe 40 may be larger than, equal to or smaller than the outer diameter of the inner liquid guiding base 33. When the inner diameter of the vent pipe 40 is larger than the outer diameter of the annular boss 36, the vent pipe 40 is sleeved outside the annular boss 36. When the outer diameter of the vent pipe 40 is larger than or equal to the outer diameter of the inner liquid guiding base 33, the outer liquid guiding base 32 in the atomizing core 30 contacts with the atomized liquid in the liquid storage bin, and the atomized liquid can be transmitted to the inner liquid guiding base 33 through the outer liquid guiding base 32. When the outer diameter of the vent pipe 40 is smaller than the outer diameter of the inner liquid guiding base 33, both the outer liquid guiding base 32 and the inner liquid guiding base 33 in the atomizing core 30 can be in contact with the atomized liquid in the liquid storage bin, and the atomized liquid can be indirectly conducted to the inner liquid guiding base 33 through the outer liquid guiding base 32 and can be directly contacted with the inner liquid guiding base 33 for conduction. If the end of the air tube 40 is sleeved inside the annular boss 36, the structural size of the atomizing core 30 can be adjusted correspondingly. Of course, the outer liquid guiding substrate 32 may also be provided with an integrally connected annular boss 36, and the end of the vent pipe 40 is sleeved on the outer layer or the inner side of the annular boss 36, but at this time, the outer liquid guiding substrate 32 on the atomizing core 30 contacts the atomized liquid in the liquid storage bin.

In the present embodiment, referring to fig. 4, the outer layer liquid-guiding matrix 32 is divided into a first matrix 321 and a second matrix 322 integrally connected from the head end 21 of the oil tank 20 to the tail end 22 side of the oil tank 20, and the outer layer liquid-guiding matrix 32 is divided into upper and lower portions as shown by the horizontal dotted line in fig. 4. The first substrate 321 has a tapered shape, and the second substrate 322 has a cylindrical shape. For example, the first base 321 has a circular truncated cone shape, the second base 322 has a cylindrical shape, and the reservoir 20 has a cylindrical shape. Cylindric second base member 322 outer wall and the inner wall looks adaptation of batch oil tank 20 are convenient for directly or indirectly and the contact of batch oil tank 20 inner wall, and then realize the sealed effect of contact position. The side wall of the first base body 321 in the shape of the circular truncated cone is a conical surface, so that the contact area with atomized liquid in the liquid storage bin can be increased, and the liquid guiding speed is further improved.

The porosity of the outer liquid-conducting matrix 32 is greater than the porosity of the inner liquid-conducting matrix 33, and the average pore diameter of the outer liquid-conducting matrix 32 is greater than the average pore diameter of the inner liquid-conducting matrix 33. The larger the porosity is, the larger the average pore diameter is, correspondingly, the better the liquid guiding performance is, and the weaker the oil locking performance is. The smaller the porosity is, the smaller the average pore diameter is, and correspondingly, the oil locking performance is stronger and the liquid guiding performance is weaker. The outer-layer liquid guide base body 32 and the inner-layer liquid guide base body 33 are matched, so that the atomized liquid can be quickly conducted, the atomized liquid can be stored, and the liquid leakage problem is effectively solved.

Specifically, the porosity of the outer drainage matrix 32 is not less than 60%, and the porosity of the inner drainage matrix 33 is 40-58%. The average pore size of the micropores in the outer liquid-conducting matrix 32 is 50-300 microns, and the average pore size of the micropores in the inner liquid-conducting matrix 33 is 8-25 microns. The thickness of the outer layer liquid guiding substrate 32 is 0.3-3mm, and the thickness of the inner layer liquid guiding substrate 33 is 0.5-2.5mm. Or more preferably, the thickness of the inner liquid-guiding matrix 33 is set to 0.75 to 1.5mm. Under the parameter setting in this scope, the liquid guide performance and the oil locking performance of the atomizing core 30 are better considered, and the atomizing taste is ensured.

The atomizing structure that this application designed is through offering the gradient aperture on the outer liquid base member 32 of ectonexine on atomizing core 30, compromises atomizing structure's drain performance and lock oily performance, can improve the oil leak problem, can realize atomizing liquid's quick conduction again, and atomizing structure is convenient for automatic batch production simultaneously, has improved the operating efficiency. The position of the atomizing core 30 in the atomizing structure is changed, and the atomizing core 30 is arranged at the side of the tail end 22 in the oil storage tank 20. Generally, the atomizing structure is mostly used in an atomizer, and when a user uses the atomizer including the atomizing structure, the head end 21 of the oil storage tank 20 is close to the user's mouth (i.e., at the top), and the tail end 22 is far from the user's mouth (i.e., at the bottom). Like this, the atomized liquid in the stock solution storehouse, for example the tobacco tar can be because gravity reason is downward, and then ensure the tobacco tar can contact with atomizing core 30 all the time, can not influence atomizing core 30's drain, effectively avoid generating heat the part and appear inefficacy or invalid phenomenon of generating heat.

In another embodiment of the present application, an atomizer is provided, which includes a housing, a power supply structure (not shown), and the atomizing structure. Atomizing structure and power structure all are located the shell, and the lead wire and the power structure electricity of heat-generating body 31 are connected among the atomizing structure. The atomizer adopts the atomization structure, so that the atomizer also has the advantages of the atomization structure, and repeated description is omitted here.

The above-mentioned directional words such as up, down, left and right, and the list of shapes in the present application are only for clearly illustrating the technical solution of the present application, and should not be construed as limiting the present application.

The atomizing core 30 of this application design, outer drain base member 32 and inlayer drain base member 33 all adopt ceramic material, and outer drain base member 32, inlayer drain base member 33's raw and other materials all include: aggregate, glass powder and pore-forming agent. Dispersants and binders to aid in green body formation are also used in the preparation of the inner and outer liquid conducting matrices. Wherein, the aggregate material includes but not limited to one or more of silicon oxide, aluminum oxide, silicon carbide and white corundum. The pore-forming agent includes, but is not limited to, one or more of flour, polymethyl methacrylate, modified starch, corn starch, polystyrene, and rice hull ash. The binder includes but is not limited to one or more of paraffin, beeswax, and carboxymethyl cellulose. The dispersant includes but is not limited to one or more of oleic acid, stearic acid, polyvinyl alcohol, sodium citrate and sodium silicate. Specifically, the atomizing core 30 is processed by the following method:

example 1

A method for processing an atomizing core 30 includes, as shown in FIG. 6, processing an inner liquid-guiding matrix 33 on the left side of an upper layer, processing an outer liquid-guiding matrix 32 on the right side of the upper layer, and integrally processing the inner and outer liquid-guiding matrices of the lower layer.

Preparation of the inner liquid-conducting matrix 33:

s11, pretreatment of raw materials: the aggregate is 200-mesh silicon dioxide powder, the silicon dioxide powder is put into an industrial oven, the temperature is set to be 100-200 ℃, for example, 120 ℃, and the water content of the powder is periodically sampled and detected to be lower than 0.5wt%. If the water content is lower than 0.5wt%, weighing the silica powder and the alumina grinding balls according to the mass ratio of the material balls being 1: 2, putting the silica powder and the alumina grinding balls into a ball mill for ball milling, wherein the powder needs to be periodically pumped and measured for particle size during the ball milling, and the ball milling can be finished when the particle size of the powder is between 8 and 25 mu m. Preferably, the ball milling is finished when the particle size of the powder reaches 18-25 um.

S12, burdening and mixing: the ingredients comprise low-temperature lead-free glass powder, a pore-forming agent and pretreated silicon dioxide powder, wherein the mass ratios of the silicon dioxide powder, the low-temperature lead-free glass powder and the pore-forming agent are respectively 60wt%, 17wt% and 23wt%. The softening point temperature of the low-temperature lead-free glass powder is 450 ℃, and the fineness of the low-temperature lead-free glass powder is 3000 meshes. The pore-forming agent is a multi-component pore-forming agent, wherein the mass ratio of the polymethyl methacrylate to the modified starch is 1: 1. After the materials are mixed, the silicon dioxide powder, the low-temperature lead-free glass powder and the pore-forming agent are uniformly stirred and then poured into a mixer to start mixing for 1-4h (theoretically, the longer the mixing is, the more uniform the mixing is), for example, 2h.

S13, slurry preparation: and adding the binder for assisting green body forming into a pulping machine (the temperature is set to be 5-50 ℃ higher than the melting point of the binder). The binder is paraffin and beeswax, the paraffin accounts for 23wt% of the total powder, the beeswax accounts for 2wt% of the total powder, and the total powder is the mass sum of silicon dioxide powder, low-temperature lead-free glass powder and pore-forming agent in the material mixture. Setting the temperature at 80 ℃, slowly adding the uniformly mixed ingredients after melting, adding a surfactant accounting for 0.1-0.3wt% of the total powder, stirring, for example, adding vegetable oil acid accounting for 0.2wt%, continuing stirring until uniform and fluid slurry is obtained, and keeping the slurry warm for later use or transferring the slurry into a hot-press casting machine.

S14, die-casting forming: the heating element 31 is inserted into the mold through a lead wire; the temperature of the hot-die casting machine is set to be 60-75 ℃, the slurry is pressed into the die by the hot-die casting machine to be integrally formed with the heating element 31, and a green body of the inner-layer liquid-guiding matrix 33 is obtained after cooling.

Preparation of the outer drainage matrix 32:

s21, pretreatment of raw materials: the same process as the pretreatment of the raw material of the inner liquid-guiding matrix 33, correspondingly adjusting parameters, and obtaining the powder meeting the particle size requirement of the outer layer formula through drying and ball milling processes, for example, obtaining the powder with the particle size of 50-300 um.

S22, material preparation and mixing: the aggregate material is silicon carbide powder, the adding mass is 54wt% of the total weight of the powder in the formula, and the particle size is 200 meshes. The sintering aid adopts low-temperature lead-free glass powder, the weight of the sintering aid is 16wt% of the total weight of the powder in the formula, the softening point temperature of the sintering aid is 450 ℃, and the fineness of the sintering aid is 3000 meshes. The pore-forming agent adopts corn starch, and the adding mass of the pore-forming agent is 30wt% of the total weight of the powder in the formula. Weighing aggregate, glass powder and pore-forming agent in sequence according to the mass percent, uniformly stirring, pouring into a mixer, and mixing for 1-4h, for example, 2h. The powder material in the formula is total powder material, and comprises aggregate, glass powder and pore-forming agent.

S23, banburying: weighing a binder (the binder is 56# paraffin wax, the adding proportion is 20 wt%) according to 18-40wt% of the mass of the powder in the formula, adding the binder into a preheated internal mixer (the temperature is 5-50 ℃ higher than the melting point of the binder), slowly adding the uniformly mixed powder in the internal mixer after the paraffin wax is molten, starting stirring and simultaneously adding a dispersing agent (stearic acid is adopted as the dispersing agent in the case, the adding proportion is 6 wt%) according to 5-10wt% of the total weight of the powder in the formula, taking out the powder and the paraffin wax to be subjected to internal mixing to obtain uniform and sticky slurry, and cooling and solidifying the slurry into a slurry block.

S24, crushing: crushing the slurry blocks obtained by banburying by a crusher to obtain particles with uneven sizes (aiming at meeting the requirement of a granulator on incoming materials).

S25, granulation: and (3) forming the crushed particles into material particles with uniform size through a granulator (aiming at meeting the requirement of an injection machine on incoming materials).

Preparing the atomizing core 30, after preparing the green compact of the inner liquid guiding matrix 33 and the material particles needed by the outer liquid guiding matrix 32, continuing to perform the following operations:

s31, integral injection molding: and adding the material particles into an injection machine, putting the prepared inner-layer liquid-guiding matrix 33 green body into a mold in advance, melting the material particles by the injection machine, pressing the material particles into the mold, and integrally forming to obtain the atomization core 30 green body.

S32, sintering: putting the atomization core 30 green body obtained by integral injection molding in a sagger and embedding the atomization core in the buried burning powder, and sintering by adopting the following temperature rise curve: heating to 200 deg.C within 90-200min, maintaining the temperature for 30-180min (discharging binder for forming green body), heating to 420 deg.C within 200-350min, maintaining the temperature for 60-200min (discharging pore-forming agent), heating to 500 deg.C within 60-120min, heating to 670 deg.C within 60-90min, maintaining the temperature for 15-60min, furnace cooling to room temperature, and taking out. After sintering, the atomizing core 30 of the present application is obtained. Specifically, the temperature rise curve of sintering is as follows: heating to 200 deg.C for 120min, maintaining the temperature for 180min, heating to 420 deg.C for 350min, maintaining the temperature for 200min, heating to 500 deg.C for 90min, heating to 670 deg.C for 60min, and maintaining the temperature for 30min.

S33 post-processing: and pouring the sintered atomizing core 30 discharged from the furnace into a vibrating screen, removing surface dust, and then cleaning and drying.

S34 detection and testing: the post-treated atomizing core 30 was subjected to visual inspection and physical property testing of the inner and outer drainage matrices.

S35, packaging and warehousing: and packaging and warehousing the detected and tested atomizing core 30.

10 samples of the inner drainage matrix 33, which was separately sintered in this example, were randomly sampled and measured for average pore size, open porosity, and water absorption as shown in Table 1 below:

table 1 example 1 table for examining inner liquid-guiding matrix

Sample name	Average pore diameter/um	Open porosity/%	Water absorption/%)
				1#	9.62	40.16	42.26
2#	8.28	41.09	43.33
				3#	8.31	41.72	43.29
4#	10.32	40.6	42.02
				5#	9.10	40.72	43.19
6#	11.98	40.16	42.19
				7#	9.87	42.95	45.82
8#	11.26	40.47	43.62
				9#	10.92	40.72	42.19
10#	10.53	41.6	43.02

10 samples of the separately sintered outer drainage matrix 32 of this example were randomly sampled and measured for average pore size, open porosity, and water absorption as shown in Table 2 below:

table 2 example 1 table for testing outer liquid-guiding matrix

Sample name	Average pore diameter/um	Open porosity/%	Water absorption/%)
				1#	58.86	60.32	62.88
2#	58.53	60.64	62.62
				3#	50.98	60.03	62.23
4#	52.23	60.46	63.62
				5#	56.10	60.72	62.56
6#	55.98	60.16	62.91
				7#	51.87	60.35	63.30
8#	54.26	60.47	62.10
				9#	56.89	60.28	62.26
10#	58.93	60.50	62.35

Samples of the atomizing core 30 of this embodiment were randomly taken and assembled into an atomizer for reliability testing, and the test items and test methods are shown in table 3 below:

table 3 example 1 atomizing core reliability test table

The equipment of atomizing core 30 in this embodiment all need not to wrap cotton, can realize automatic operation, has effectively avoided the cotton degree of difficulty of package big, artifical dependence is strong, artifical equipment poor stability, operating efficiency low grade problem.

The reliability test result of the atomizer is as follows: the five test items of normal temperature standing, high temperature storage, low temperature storage, high temperature and high humidity storage and high altitude and low pressure pass smoothly, and the atomizer does not leak oil, so that the atomizing core of the embodiment can effectively solve the problem of oil leakage of the atomizer.

The data in table 1 show that the physical properties of the inner and outer liquid guiding substrates are stable, the average pore diameter of the inner liquid guiding substrate 33 is relatively small, about 10um, which is beneficial to the improvement of the oil locking capacity of the inner liquid guiding substrate 33, thereby effectively playing the role of preventing oil leakage. The average pore size of the outer liquid-conducting matrix 32 is significantly larger than that of the inner layer (see fig. 8 for microstructure), which is beneficial for the atomized liquid to be quickly conducted to the inner layer to ensure sufficient supply, and the outer liquid-conducting matrix 32 has a large average pore size and can also play a part of oil storage role.

Therefore, the average pore diameter and porosity of the inner and outer liquid-conducting matrixes need to have a certain gradient, and the average pore diameter and porosity of the outer liquid-conducting matrix 32 are higher than those of the inner layer, so that the smoothness of an oil-conducting mechanism under the combined action of the inner and outer liquid-conducting matrixes 32 can be ensured.

Example 2

A method for processing an atomizing core 30 includes, as shown in FIG. 7, processing an inner liquid-guiding base 33 on the left side of an upper layer, processing an outer liquid-guiding base 32 on the right side of the upper layer, and integrally processing the inner and outer liquid-guiding bases of the lower layer.

Preparation of the inner liquid-conducting matrix 33:

s21, raw material pretreatment: this step is the same as the pretreatment of the raw material in step S11 in example 1, and will not be described.

S22, burdening and mixing: the ingredients comprise a sintering aid, a pore-forming agent and pretreated silicon dioxide powder, wherein the mass ratios of the silicon dioxide powder, the low-temperature lead-free glass powder and the pore-forming agent are respectively 62wt%, 18wt% and 20wt%. The sintering aid adopts low-temperature lead-free glass powder. The pore-forming agent is a multi-component pore-forming agent, wherein polystyrene and corn starch are added according to the mass ratio of 1: 1. After the materials are mixed, the silicon dioxide powder, the low-temperature lead-free glass powder and the pore-forming agent are uniformly stirred and then poured into a V-shaped mixer to start mixing for 1-4h, for example, 2h.

S23, banburying: weighing a binder (the binder is 56# paraffin wax, the adding proportion is 20 wt%) according to 18-40wt% of the mass of the formula powder, adding the binder into a preheated internal mixer (the temperature is 5-50 ℃ higher than the melting point of the binder), slowly adding the uniformly mixed formula powder into the internal mixer after the paraffin wax is molten, starting stirring and simultaneously adding a dispersing agent (stearic acid is adopted as the dispersing agent in the case, the adding proportion is 6 wt%) according to 5-10wt% of the total weight of the formula powder, taking out, cooling and solidifying the powder and the paraffin wax into a slurry block which is uniform and sticky.

S24, crushing: crushing the slurry blocks obtained by banburying by a crusher to obtain crushed particles with uneven sizes.

S25, granulation: and (4) forming the crushed particles into material particles with uniform sizes by a granulator.

S26, injection molding: the heating element 31 is placed in an injection mold, the material particles of the inner-layer liquid-guiding substrate 33 are added into the injection machine, the material particles are melted and pressed into the mold through the injection machine, and a green body of the inner-layer liquid-guiding substrate 33 is obtained through injection molding.

Preparation of the outer drainage matrix 32:

preparation of outer drainage matrix 32 the preparation of outer drainage matrix 32 in example 1 is the same except that the sintering process of S32 is different, and the same parts will not be described.

In this embodiment, the step of sintering S32 specifically includes: putting the atomization core 30 green body obtained by integral injection molding in a sagger and embedding the atomization core in the buried burning powder, and sintering by adopting the following temperature rise curve: heating to 200 deg.C within 90min, maintaining the temperature for 200min (removing paraffin completely), heating to 420 deg.C within 350min, maintaining the temperature for 200min (removing pore-forming agent), heating to 500 deg.C within 90min, heating to 670 deg.C within 60min, maintaining the temperature for 20min, cooling to room temperature with the furnace, and taking out. After sintering, the atomizing core 30 of the present application is obtained.

The 33 samples of the inner drainage matrix, which was separately sintered in this example, were randomly sampled by 10 and the average pore size, open porosity, and water absorption data were measured as shown in table 4 below:

table 4 example 2 table for detecting inner layer liquid guiding base

Sample name	Average pore diameter/um	Open porosity/%	Water absorption/%)
				1#	14.58	49.97	51.31
2#	13.56	50.05	52.61
				3#	12.65	50.52	52.82
4#	14.35	51.20	53.54
				5#	12.62	50.61	52.62
6#	12.84	51.34	53.30
				7#	14.45	50.24	53.52
8#	14.21	51.65	53.45
				9#	12.85	50.54	52.54
10#	13.45	50.59	52.34

Randomly sampling the atomizing core 30 in this embodiment and assembling the sample in the atomizer for reliability test, wherein the reliability test items and methods are the same as those described in embodiment 1, and the test results are as follows: the oil leakage phenomenon does not occur in five test items of normal temperature standing, high temperature storage, low temperature storage, high temperature and high humidity storage and high altitude and low pressure. This formulation and structure may also be used as an alternative to the method of making the outer liquid-conducting matrix 32 by a foam impregnation process.

The following description is required: the gradient difference of the pore diameter and the porosity of the sintered inner-layer and outer-layer liquid guide substrates is mainly realized by controlling the proportion and the particle diameter of aggregate and pore-forming agent in the formula, and the higher the proportion of the pore-forming agent is, the higher the porosity after sintering is, the larger the particle diameter of the aggregate and the pore-forming agent is, and the larger the average pore diameter of pores formed after sintering is. The formulation ratios provided in the present examples are only one of the formulations from which the atomizing core 30 of the present invention can be prepared and are not meant to be optimal. The hot-die-casting process has simple process and low equipment and manufacturing cost, but the product stability is relatively low. The stability of the injection molding finished product is high, but the equipment and manufacturing cost are high, the outer layers of the two process routes in the embodiment 1-2 of the application are both injection molded, in order to ensure the stability of the product, particularly the stability of the size, ensure the tightness of the assembly of the atomizer and reduce the increase of the oil leakage ratio caused by the size fluctuation.

The present application has been described with reference to specific examples, which are provided only to aid understanding of the present application and are not intended to limit the present application. For a person skilled in the art to which the application pertains, several simple deductions, modifications or substitutions may be made according to the idea of the application.

Claims (10)

1. An atomizing structure, comprising:

the oil storage tank is provided with a head end at one end and a tail end at the other end, the head end is provided with an air outlet, and the tail end is provided with an air inlet;

the atomizing core is positioned in the oil storage tank and close to one side of the tail end of the oil storage tank, and the atomizing core comprises a hollow tubular double-layer liquid guiding base body and a heating body arranged on the double-layer liquid guiding base body; the double-layer drainage base body comprises an outer-layer drainage base body and an inner-layer drainage base body which are distributed from outside to inside, and micro pores are formed in the outer-layer drainage base body and the inner-layer drainage base body; and

the air pipe is positioned in the oil storage tank, one end of the air pipe is connected with the head end of the oil storage tank, the other end of the air pipe is connected with the atomizing core, one end of the air pipe is communicated with the air inlet through the inner-layer liquid guide base body, the other end of the air pipe is communicated with the air outlet, an air passage is formed in the air pipe, and the air pipe, the oil storage tank and the atomizing core are enclosed to form a liquid storage bin for containing atomized liquid;

the double-layer liquid guiding base body is used for guiding the atomized liquid to the heating body, the heating body is used for heating the atomized liquid, and the liquid guiding speed of the outer-layer liquid guiding base body is larger than that of the inner-layer liquid guiding base body.

2. The atomizing structure of claim 1, wherein an end of the vent tube is sealingly connected to the atomizing cartridge.

3. The atomizing structure of claim 2, wherein a first seal is disposed between the atomizing core and the vent tube, and a second seal is disposed between the atomizing core and the reservoir.

4. The atomizing structure of claim 3, wherein the outer liquid-conducting substrate and the inner liquid-conducting substrate have the same axial length, an annular boss is provided on one side of the outer liquid-conducting substrate or the inner liquid-conducting substrate facing the head end, the vent pipe is sleeved on the annular boss, and the first sealing ring is provided between the vent pipe and the annular boss.

5. The atomizing structure of claim 3, wherein the outer liquid-conducting base has an axial length greater than that of the inner liquid-conducting base, a space recessed toward the side of the rear end of the reservoir is formed between the outer liquid-conducting base and the inner liquid-conducting base on the side away from the rear end, and an end of the vent pipe is disposed in the outer liquid-conducting base and abuts against an end surface of the inner liquid-conducting base; the first sealing ring is arranged between the inner wall of the outer liquid guide base body and the vent pipe.

6. The atomizing structure of claim 3, wherein the outer liquid-conductive base body is divided into a first base body and a second base body integrally connected from a head end of the reservoir tank to a tail end side of the reservoir tank, the first base body has a tapered shape, and the second base body has a columnar shape.

7. An atomisation structure as claimed in any one of claims 1 to 6, characterised in that the outer liquid-conducting matrix has a porosity greater than that of the inner liquid-conducting matrix, and the outer liquid-conducting matrix has a mean pore size greater than that of the inner liquid-conducting matrix.

8. The atomization structure of claim 7 wherein the outer liquid-conducting matrix and the inner liquid-conducting matrix are both solid matrices, the outer liquid-conducting matrix has a porosity of not less than 60%, and the inner liquid-conducting matrix has a porosity of 40-58%; the average pore diameter of the micro pores on the outer liquid guiding substrate is 50-300 microns, and the average pore diameter of the micro pores on the inner liquid guiding substrate is 8-25 microns.

9. The atomizing structure according to claim 1, wherein the heating element is fixed to an inner wall of the inner liquid-conducting base, and the heating element is in any one of a filament shape, a mesh shape, and a sheet shape.

10. A nebulizer comprising a nebulizing structure according to any one of claims 1 to 9.

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