Atomization core and electronic atomizer

Abstract

An atomization core (10) and an electronic atomizer (60). The atomization core (10) comprises: a ceramic substrate (11) provided with a hollow channel (111) for guiding an aerosol substrate; and a heating wire (12), embedded in the surface of the inner wall of the hollow channel (111), wherein the ceramic substrate (11) has a first end surface (112) and a second end surface (113) opposite to each other, an air inlet (114) is formed in the first end surface (112), and an air outlet (115) is formed in the second end surface (113). The atomization core (10) uses the ceramic substrate (11) to fix the heating wire (12), and the heating wire (12) is embedded in the surface of the inner wall of the ceramic substrate (11), such that the heating wire (12) and the ceramic substrate (11) form an integral structure. The aerosol substrate can enter the hollow channel (111) via micropores in the wall of the ceramic substrate (11) and come into contact with the heating wire (12).

Description

Atomizer coils and electronic atomizers

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202520259764.6, filed on February 18, 2025, entitled "Atomizing Core and Electronic Atomizer", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of electronic atomizer technology, and more specifically, to an atomizing core and an electronic atomizer. Background Technology

[0004] An electronic atomizer is an electronic product that can turn liquid oil into vapor. It works by using a built-in power source to heat a heating wire, which then evaporates the liquid oil into vapor. Users inhale this vapor to absorb the components of the liquid oil.

[0005] Currently, most electronic atomizers on the market use cotton swabs to secure the heating wire during assembly. These swabs must remain in place until the product is fully assembled. However, the swabs need to be removed before the product is used by the consumer. Removing the swabs carries the risk of causing the heating wire to deform and become suspended in mid-air. A deformed heating wire can affect the resistance and vaping experience.

[0006] Application content

[0007] The purpose of this application is to address the shortcomings of the prior art by providing an atomizing core and electronic atomizer that can prevent the heating wire from deforming and becoming suspended.

[0008] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:

[0009] In one aspect of this application, an atomizing core is provided, comprising: a ceramic substrate having a hollow channel for guiding the aerosol matrix; and a heating wire embedded in the surface of the inner wall of the hollow channel; wherein the ceramic substrate has a first end face and a second end face opposite to each other, with an air inlet formed on the first end face and an air outlet formed on the second end face.

[0010] In some embodiments, the hollow channel includes a receiving portion and an air intake portion connected to the receiving portion, the heating wire is located inside the receiving portion, and the air intake portion forms an air inlet on the first end face; wherein, the orthographic projection outline of the air intake portion on the first end face is located within the orthographic projection outline of the receiving portion on the first end face.

[0011] In some embodiments, the receiving portion forms an air outlet on the second end face.

[0012] In some embodiments, both the accommodating portion and the air intake portion are cylindrical, and the diameter of the air intake portion is smaller than the diameter of the accommodating portion.

[0013] In some embodiments, the heating wire is provided with a positive terminal and a negative terminal, the positive terminal being used to be electrically connected to the positive terminal of the power supply, and the negative terminal being used to be electrically connected to the negative terminal of the power supply.

[0014] In another aspect of this application, an electronic atomizer is provided, including a housing and an atomizing core as described above disposed within the housing; the housing is provided with a mouthpiece and an air hole, the air outlet of the atomizing core faces the mouthpiece and communicates with the mouthpiece, and the air inlet of the atomizing core faces the air hole and communicates with the air hole; wherein at least a portion of the ceramic substrate of the atomizing core is configured to communicate with a liquid storage chamber.

[0015] In some embodiments, a liquid storage element is provided inside the housing, the liquid storage element being configured to store an aerosol matrix; a first end of the liquid storage element faces the nozzle, a second end opposite to the first end faces away from the nozzle, and a ceramic substrate is located at the second end of the liquid storage element and extends out of the second end.

[0016] In some embodiments, the liquid storage element is a liquid storage cotton, which wraps around the outer surface of the ceramic substrate so that the aerosol matrix flows from the liquid storage cotton to the ceramic substrate.

[0017] In some embodiments, the electronic atomizer further includes: an air outlet tube connected to the air outlet end of the ceramic substrate of the atomizing core; an air outlet hole provided inside the air outlet tube, the air outlet hole communicating with the air outlet of the ceramic substrate; wherein, the liquid storage cotton is configured to wrap the outer surface of the air outlet tube.

[0018] In some embodiments, the sidewall of the ceramic substrate is provided with a clearance area, which is configured to be nested with the end of the vent pipe.

[0019] The beneficial effects of this application include:

[0020] This application provides an atomizing core, comprising: a ceramic substrate having a hollow channel for guiding the aerosol matrix; and a heating wire embedded in the surface of the inner wall of the hollow channel; wherein the ceramic substrate has a first end face and a second end face opposite to each other, with an air inlet formed on the first end face and an air outlet formed on the second end face.

[0021] The aforementioned atomizing core uses a ceramic substrate to fix the heating wire. The heating wire is embedded in the surface of the inner wall of the ceramic substrate, thus forming an integral structure with the ceramic substrate, making it less prone to deformation and loosening. The aerosol matrix can enter the hollow channel through the tiny pores on the ceramic substrate tube wall and come into contact with the heating wire.

[0022] Therefore, once the product including the aforementioned atomizing core is assembled, there is no need to remove the ceramic substrate, which avoids deformation and suspension of the heating wire, thereby avoiding any obstruction of the heating wire and the vaping experience. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the atomizing core provided in an embodiment of this application;

[0024] Figure 2 is one of the cross-sectional views of the atomizing core provided in the embodiment of this application;

[0025] Figure 3 is a cross-sectional view of the electronic atomizer provided in an embodiment of this application;

[0026] Figure 4 is a cross-sectional view of the mold used to prepare the ceramic matrix provided in the embodiments of this application;

[0027] Figure 5 is a schematic diagram of the orthographic projection of the air inlet and the accommodating part in the atomizing core provided in the embodiment of this application on the first end face;

[0028] Figure 6 is a second cross-sectional view of the atomizing core provided in the embodiment of this application.

[0029] Icons: 10-Atomizer Core; 11-Ceramic Substrate; 111-Hollow Channel; 1111-Receptacle; 1112-Air Inlet; 112-First End Face; 113-Second End Face; 114-Air Inlet; 115-Air Outlet; 116-Giveaway Area; 12-Heating Wire; 13-Positive Pin; 14-Negative Pin; 15-Air Outlet Pipe; 151-Air Outlet Hole; 20-Liquid Storage Element; 21-First End; 22-Second End Two ends; 30-Power supply; 40-Outer shell; 41-Mouthpiece; 42-Air hole; 51-Silicone plug; 511-Receiving groove; 52-Adjusting plug; 53-Circuit board; 54-Induction airway; 60-Electronic atomizer; 70-Mold; 71-Base plate; 72-First annular plate; 73-Second annular plate; 74-Cavity; M-Orthographic projection outline of the air intake on the first end face; N-Orthographic projection outline of the receiving part on the first end face. Detailed Implementation

[0030] According to one aspect of this application embodiment, referring to Figures 1 to 3, an atomizing core 10 is provided, comprising: a ceramic substrate 11 with a hollow channel 111 for guiding the aerosol matrix; and a heating wire 12 embedded in the surface of the inner wall of the hollow channel 111. The ceramic substrate 11 has a first end face 112 and a second end face 113 facing each other, with an air inlet 114 formed on the first end face 112 and an air outlet 115 formed on the second end face 113.

[0031] The ceramic substrate 11 is a tubular part made of ceramic material. The wall of the ceramic substrate 11 has numerous tiny pores (not shown in the figure), which are generally invisible to the naked eye but allow the aerosol matrix to pass through. The ceramic substrate 11 is at least partially located within the aerosol matrix, and the aerosol matrix can enter the hollow channel 111 of the ceramic substrate 11 through the tiny pores. A heating wire 12 is installed within the hollow channel 111, embedded in the surface of the inner wall of the ceramic substrate 11. The ceramic substrate 11 is thermally conductive; when the heating wire 12 is energized and heated, the temperature of the ceramic substrate 11 rises, and the aerosol matrix entering the ceramic substrate 11 turns into vapor. Driven by external airflow, the vapor leaves the ceramic substrate 11 through the outlet 115.

[0032] The aforementioned atomizing core 10 uses a ceramic substrate 11 to fix the heating wire 12. The heating wire 12 is embedded in the surface of the inner wall of the ceramic substrate 11, thus forming an integral structure with the ceramic substrate 11, making it less prone to deformation and loosening. The aerosol matrix can enter the ceramic substrate 11 through the tiny pores on the tube wall of the ceramic substrate 11 and come into contact with the heating wire 12. Therefore, after the product including the aforementioned atomizing core 10 is assembled, there is no need to remove the ceramic substrate 11, which can avoid deformation and suspension of the heating wire 12, thereby avoiding affecting the resistance of the heating wire 12 and the vaping experience.

[0033] In some embodiments, referring to Figures 1 and 2, the heating wire 12 is in the form of a mesh, and the ceramic substrate 11 is formed by drying through a molding process, so that the heating wire 12 is embedded in the inner wall of the ceramic substrate 11 and exposed on the inner wall.

[0034] Referring to Figure 4, the preparation of the ceramic substrate 11 using the modeling process requires a mold 70. The mold 70 includes a base plate 71, a first annular plate 72 and a second annular plate 73 disposed on the base plate 71. The first annular plate 72 is located inside the second annular plate 73. The cavity 74 between the first annular plate 72 and the second annular plate 73 is used to hold liquid ceramic material. After the ceramic material solidifies, the ceramic substrate 11 is formed. The dimensions of the first annular plate 72 and the second annular plate 73 are determined according to the required dimensions of the ceramic substrate 11.

[0035] Before adding liquid microporous ceramic material into the cavity 74 of the mold 70, a mesh-like heating wire 12 needs to be placed inside the cavity 74 and wrapped around the outside of the first annular plate 72. Because the heating wire 12 is mesh-like, the liquid ceramic material entering the cavity 74 will automatically fill the mesh of the heating wire 12. After the ceramic material solidifies, the heating wire 12 is embedded in the surface of the inner wall of the ceramic substrate 11. The heating wire 12, fixed using a mold-making process, is less prone to deformation and loosening.

[0036] In some embodiments, referring to Figures 2 and 5, the hollow channel 111 includes a receiving portion 1111 and an air intake portion 1112 connected to the receiving portion 1111. The heating wire 12 is located inside the receiving portion 1111, and the air intake portion 1112 forms an air inlet 114 on the first end face 112. The orthographic projection contour M of the air intake portion 1112 on the first end face 112 is located within the orthographic projection contour N of the receiving portion 1111 on the first end face 112.

[0037] It should be noted that the orthographic projection contour M of the air intake 1112 on the first end face 112 refers to the outer contour of the projection produced by projecting the air intake 1112 onto the first end face 112 using parallel projection lines perpendicular to the first end face 112 as the projection surface. The orthographic projection contour N of the accommodating part 1111 on the first end face 112 refers to the outer contour of the projection produced by projecting the accommodating part 1111 onto the first end face 112 using parallel projection lines perpendicular to the first end face 112 as the projection surface.

[0038] The orthographic projection contour M of the intake section 1112 on the first end face 112 is located within the orthographic projection contour N of the accommodating section 1111 on the first end face 112, indicating that the cross-sectional dimension of the intake section 1112 is smaller than the cross-sectional dimension of the accommodating section 1111. This arrangement helps to improve the suction resistance of the intake section 1112.

[0039] In some embodiments, the receiving portion 1111 forms an air outlet 115 on the second end face 113.

[0040] In other words, the hollow channel 111 only includes two parts: the housing part 1111 and the air intake part 1112. With this arrangement, the internal structure of the ceramic substrate 11 can be kept as simple as possible while fixing the heating wire 12 and increasing the suction resistance of the air intake part 1112. This makes it easier to manufacture the ceramic substrate 11 and reduces processing costs.

[0041] In some embodiments, both the accommodating portion 1111 and the air intake portion 1112 are cylindrical, and the diameter of the air intake portion 1112 is smaller than the diameter of the accommodating portion 1111.

[0042] The cylindrical receiving portion 1111 has no sharp edges on its inner wall, which facilitates the embedding of the heating wire 12 without damaging it. The air inlet portion 1112, with the same shape as the receiving portion 1111, is advantageous for processing the ceramic substrate 11. The diameter of the air inlet portion 1112 is smaller than the diameter of the receiving portion 1111, which increases the suction resistance of the air inlet portion 1112.

[0043] In some embodiments, the diameter of the air intake 1112 is between 1.1 mm and 1.3 mm.

[0044] It should be noted that the above range includes the endpoint values, that is, the diameter of the air intake 1112 can be 1.1mm or 1.3mm.

[0045] When the diameter of the air intake 1112 is between 1.1 mm and 1.3 mm, it can ensure that the flow rate and temperature of the steam formed in the container 1111 are within a reasonable range, providing users with a better user experience.

[0046] In some embodiments, the diameter of the air intake 1112 is 1.2 mm.

[0047] At this time, the intake resistance of the air intake 1112 is between 250Pa and 350Pa, which can provide users with a better user experience.

[0048] In some embodiments, the outer wall of the ceramic substrate 11 is cylindrical, which makes the ceramic substrate 11 more aesthetically pleasing and facilitates its preparation.

[0049] In some embodiments, referring to Figures 1 and 2, the heating wire 12 is provided with a positive terminal 13 and a negative terminal 14. The positive terminal 13 is used to be electrically connected to the positive terminal of the power supply 30, and the negative terminal 14 is used to be electrically connected to the negative terminal of the power supply 30.

[0050] Power supply 30 energizes heating wire 12 through positive pin 13 and negative pin 14, causing heating wire 12 to heat up.

[0051] Referring to Figures 1 to 3, this embodiment also provides an electronic atomizer 60, including a housing 40 and an atomizing core 10 as described above, disposed within the housing 40. The housing 40 has a mouthpiece 41 and an air vent 42. The air outlet 115 of the atomizing core 10 faces and communicates with the mouthpiece 41. The air inlet 114 of the atomizing core 10 faces and communicates with the air vent 42. At least a portion of the ceramic substrate 11 of the atomizing core 10 is configured to communicate with a liquid storage chamber.

[0052] The substance in the storage chamber enters the hollow channel 111 of the ceramic substrate 11 through tiny pores on the tube wall. When the heating wire 12 is energized, it heats the ceramic substrate 11, causing the substance inside the ceramic substrate 11 to turn into vapor. The user draws in through the nozzle 41. External airflow enters the outer shell 40 through the pore 42, then enters the ceramic substrate 11 through the air inlet 114. The vapor inside the ceramic substrate 11, driven by the external airflow, leaves the ceramic substrate 11 through the air outlet 115 and is finally inhaled by the user through the nozzle 41.

[0053] The electronic atomizer 60 has the same structure and beneficial effects as the atomizing coil 10 in the foregoing embodiments. The structure and beneficial effects of the atomizing coil 10 have been described in detail in the foregoing embodiments and will not be repeated here.

[0054] In some embodiments, a liquid storage element 20 is provided within the housing 40, and the liquid storage element 20 is configured to store an aerosol matrix. A first end 21 of the liquid storage element 20 faces the nozzle 41, and a second end 22 opposite to the first end 21 faces away from the nozzle 41. A ceramic substrate 11 is located at the second end 22 of the liquid storage element 20 and extends out of the second end 22.

[0055] Generally, when a user draws in steam through the nozzle 41, the first end 21 of the liquid storage element 20 facing the nozzle 41 faces upwards, and the second end 22 facing away from the nozzle 41 faces downwards. At this time, the aerosol matrix in the liquid storage element 20 will continuously move towards the second end 22 of the liquid storage element 20 under the influence of gravity. Positioning the ceramic substrate 11 inside the liquid storage element 20 near the second end 22 allows as much of the aerosol matrix in the liquid storage element 20 as possible to be drawn into the ceramic substrate 11 for use. The ceramic substrate 11 extends beyond the second end 22 of the liquid storage element 20, exposing the air inlet 114 of the ceramic substrate 11 within the liquid storage element 20, facilitating the entry of external airflow into the ceramic substrate 11.

[0056] In some embodiments, the liquid storage element 20 is a liquid storage cotton, which wraps around the outer surface of the ceramic substrate 11 so that the aerosol matrix flows from the liquid storage cotton to the ceramic substrate 11.

[0057] The liquid storage cotton adsorbs aerosol matrix and wraps around the outer surface of the ceramic substrate 11. The aerosol matrix enters the ceramic substrate 11 through tiny pores in the tube wall. The heating wire 12 converts the aerosol matrix into vapor, which the user inhales to absorb the components of the aerosol matrix.

[0058] In some embodiments, referring to Figures 3 and 6, the electronic atomizer 60 further includes an air outlet pipe 15, which is connected to the air outlet end of the ceramic substrate 11 of the atomizing core 10. The air outlet pipe 15 has an air outlet hole 151, which communicates with the air outlet 115 of the ceramic substrate 11; wherein, the liquid storage cotton is configured to wrap around the outer surface of the air outlet pipe 15.

[0059] The liquid storage cotton forms a hollow channel, and the vent pipe 15 is embedded in the hollow channel of the liquid storage cotton and connected to the vent end of the ceramic substrate 11. The vent pipe 15 isolates the vapor generated by the liquid storage cotton and the atomizing core 10, and provides a channel for the vapor to flow. This not only prevents vapor from mixing into the aerosol matrix of the liquid storage cotton, but also avoids vapor waste. The vent pipe 15 can be made of low-cost and easy-to-process materials, thereby reducing processing costs and processing difficulty.

[0060] In some embodiments, the sidewall of the ceramic substrate 11 is provided with a clearance region 116, which is configured to be nested with the end of the vent pipe 15.

[0061] The clearance area 116 of the ceramic substrate 11 is inserted into the end of the vent pipe 15 or sleeved on the outside of the end of the vent pipe 15 to achieve the connection between the ceramic substrate 11 and the vent pipe 15.

[0062] In some embodiments, a silicone plug 51 is provided at the bottom of the housing 40, and the housing 40 and the silicone plug 51 define a liquid storage cavity, in which a liquid storage element 20 is accommodated, and a receiving groove 511 is formed in the silicone plug 51, which is used to accommodate a portion of the ceramic substrate 11.

[0063] A circuit board 53 is provided on the side of the silicone plug 51 away from the ceramic substrate 11. The silicone plug 51 and the circuit board 53 together define the sensing air passage 54. The air outlet 15 is connected to the sensing air passage 54 through the air inlet 114 of the ceramic substrate 11.

[0064] In some embodiments, the housing 40 is further provided with an adjusting plug 52, which is used to block the air hole 42. The adjusting plug 52 can move relative to the housing 40 to adjust the blocking area of ​​the air hole 42, thereby adjusting the air intake.

Claims

1. An atomizing core, characterized in that, include: The ceramic matrix has hollow channels for guiding the aerosol matrix. Heating wire is embedded in the surface of the inner wall of the hollow channel; The ceramic substrate has a first end face and a second end face, with an air inlet formed on the first end face and an air outlet formed on the second end face.

2. The atomizing core as described in claim 1, characterized in that, The hollow channel includes a receiving portion and an air intake portion connected to the receiving portion. The heating wire is located inside the receiving portion, and the air intake portion forms the air inlet on the first end face. Wherein, the orthographic projection outline of the air intake portion on the first end face is located within the orthographic projection outline of the accommodating portion on the first end face.

3. The atomizing core as described in claim 2, characterized in that, The accommodating portion forms the air outlet on the second end face.

4. The atomizing core as described in claim 2, characterized in that, Both the accommodating portion and the air intake portion are cylindrical, and the diameter of the air intake portion is smaller than the diameter of the accommodating portion.

5. The atomizing core according to any one of claims 1 to 4, characterized in that, The heating wire is provided with a positive terminal and a negative terminal. The positive terminal is used to connect to the positive terminal of the power supply, and the negative terminal is used to connect to the negative terminal of the power supply.

6. An electronic atomizer, characterized in that, Includes a housing and an atomizing core as described in any one of claims 1 to 5 disposed within the housing; The outer shell is provided with a mouthpiece and an air hole. The air outlet of the atomizing core faces the mouthpiece and is connected to the mouthpiece. The air inlet of the atomizing core faces the air hole and is connected to the air hole. In this embodiment, at least a portion of the ceramic substrate of the atomizing core is configured to communicate with the liquid storage cavity.

7. The electronic atomizer as described in claim 6, characterized in that, The housing contains a liquid storage element, which is configured to store an aerosol matrix. The first end of the liquid storage element faces the nozzle, and the second end opposite to the first end faces away from the nozzle. The ceramic substrate is located at the second end of the liquid storage element and extends out of the second end.

8. The electronic atomizer as described in claim 7, characterized in that, The liquid storage element is a liquid storage cotton, which wraps around the outer surface of the ceramic substrate so that the aerosol matrix flows from the liquid storage cotton to the ceramic substrate.

9. The electronic atomizer as described in claim 8, characterized in that, The electronic atomizer further includes: an air outlet pipe, which is connected to the air outlet end of the ceramic substrate of the atomizing core; The vent pipe is provided with a vent hole, which is connected to the vent of the ceramic substrate; wherein the liquid storage cotton is configured to wrap the outer surface of the vent pipe.

10. The electronic atomizer as described in claim 9, characterized in that, The sidewall of the ceramic substrate is provided with a clearance area, which is configured to be nested with the end of the vent pipe.

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