Ceramic atomizing core and electronic atomizing device

Abstract

The utility model discloses a ceramic atomizing core which comprises an outer base body, the outer base body is a ceramic fiber body formed by ceramic fibers and is of a porous structure, a first cavity is formed in one face of the outer base body, blind holes are formed in the positions, close to the two ends, of the two sides of the first cavity respectively, and the blind holes are communicated with the first cavity. A second cavity is formed in the surface opposite to the surface where the first cavity is located; a conductive heating layer is arranged on the inner base body, and the conductive heating layer is plated on the surface, far away from the outer base body, of the inner base body through a coating process; the electrode comprises a body and electrode pins arranged at the two ends of the body, and the electrode pins can be inserted into the blind holes to be fixed. According to the ceramic atomizing core, the stability of the conductive heating layer can be improved, and the flowability of the atomized liquid matrix in the outer matrix is improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic atomization devices, and in particular to a ceramic atomizing core and an electronic atomization device. Background Technology

[0002] As one of the core components of electronic atomizing devices (electronic cigarettes), ceramic atomizing cores have advantages over traditional cotton cores or fiberglass cords, such as strong oleophilicity, uniform heating, and high operating temperature.

[0003] The ceramic atomizing core has a conductive heating layer that heats up when electricity is applied, generating a high temperature of 250-350°C to turn the atomizing liquid matrix into an aerosol, which is then mixed with air for the user to inhale. The conductive heating layer is produced using a coating process, resulting in uniform heating. Typically, a layer only a few micrometers thick is coated onto the ceramic substrate as a resistor, which generates heat when electricity is applied. Because the conductive heating layer is only a few micrometers thick, it is directly electrically connected to a spring-loaded conductive pin. If the spring is pressed too tightly, it can damage the coating; if the spring is pressed too loosely, the conductive heating layer will have poor contact, resulting in insufficient heating. Utility Model Content

[0004] In view of this, the present invention provides a ceramic atomizing core and an electronic atomizing device. The ceramic atomizing core has an inner substrate and an outer substrate. A coating layer is deposited on the inner substrate as a conductive heating layer, and electrodes are pressed at both ends of the inner substrate.

[0005] The first aspect of this invention provides a ceramic atomizing core for use in an electronic atomizing device, comprising:

[0006] The outer substrate has a porous structure, and a first cavity is provided on one side of the outer substrate. A blind hole is provided on each side of the first cavity near both ends.

[0007] An inner substrate is disposed within the first cavity, and a conductive heating layer is provided on the inner substrate. The conductive heating layer is deposited on the surface of the inner substrate away from the outer substrate by a coating process.

[0008] The electrode includes a body and electrode feet disposed at both ends of the body. The body is in contact with the conductive heating layer, and the electrode feet can be inserted into the blind holes for fixation.

[0009] Preferably, the outer substrate is cuboid in shape with geometric dimensions of 8-10 mm in length, 3-5 mm in width, and 3-5 mm in height; the inner substrate is cuboid in shape with geometric dimensions of 6-8 mm in length, 1-2 mm in width, and 1-2 mm in height; and the body has geometric dimensions of 2-3 mm in length, 1-2 mm in width, and 0.5-1 mm in thickness.

[0010] Preferably, the outer substrate has the following geometric dimensions: length 9mm, width 3mm, height 3mm; the inner substrate has the following geometric dimensions: length 7mm, width 1mm, height 1mm; and the body has the following geometric dimensions: length 3mm, width 1mm, thickness 0.5mm.

[0011] Preferably, the length of the electrode foot is 1~2mm.

[0012] Preferably, the length of the electrode foot is 1.5 mm.

[0013] Preferably, the electrode is made of copper alloy.

[0014] Preferably, the geometric dimensions of the second cavity are: length 4~5mm, width 1~2mm, and depth 1~2mm.

[0015] Preferably, the geometric dimensions of the second cavity are: length 5mm, width 1.5mm, and depth 1mm.

[0016] Preferably, the outer substrate has a second cavity, which is located on the surface opposite to the surface where the first cavity is located.

[0017] Preferably, the second cavity is in the shape of a gradually narrowing trumpet, with the cross-sectional area decreasing as it goes deeper.

[0018] A second aspect of the present invention provides an electronic atomizing device, including the above-described ceramic atomizing core.

[0019] The beneficial effects of this utility model are:

[0020] This utility model discloses a ceramic atomizing core, comprising an outer substrate, which is a ceramic fiber body composed of ceramic fibers with a porous structure. A first cavity is provided on one surface of the outer substrate, and blind holes are respectively provided on both sides of the first cavity near its ends. A second cavity is provided on the surface opposite to the surface containing the first cavity. An inner substrate has a conductive heating layer deposited on it using a coating process on the surface of the inner substrate away from the outer substrate. An electrode includes a body and electrode feet disposed at both ends of the body. The electrode feet can be inserted into the blind holes for fixation. The ceramic atomizing core provided by this utility model has a large contact area between the electrode and the conductive heating layer. When installed in an electronic atomizing device, the conductive pins contacting the electrode provide power and heat to the conductive heating layer, resulting in greater stability. The electrode feet on the electrode are inserted into the outer substrate, which can preheat the atomizing liquid matrix that has penetrated into the outer substrate, increasing the fluidity of the atomizing liquid matrix and improving the liquid-conducting capacity of the outer substrate. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the ceramic atomizing core in the embodiment of this utility model;

[0023] Figure 2 for Figure 1 Top view;

[0024] Figure 3 for Figure 1 An explosion diagram;

[0025] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the Chinese and foreign substrates;

[0026] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure of the middle electrode;

[0027] Figure 6 for Figure 1 Another schematic diagram of the three-dimensional structure of the Chinese and foreign matrix;

[0028] Figure 7 for Figure 4 Top view;

[0029] Figure 8 for Figure 7 Sectional view along plane AA;

[0030] Figure 9 for Figure 7 Sectional view along plane BB;

[0031] Figure 10 for Figure 7 Sectional view along the CC plane;

[0032] Figure 11 Main view of the electronic atomizing device provided in this embodiment of the utility model;

[0033] Figure 12 for Figure 11 Sectional view along plane DD;

[0034] Figure 13 for Figure 11 An explosion diagram.

[0035] In the diagram: 100, electronic atomization device;

[0036] 1. Outer shell; 11. Liquid storage chamber; 12. Fog outlet channel; 13. Fog outlet cavity; 14. Hook; 2. Dust cover; 3. First sealing element; 4. Upper atomizing seat; 5. Second sealing element; 6. Ceramic atomizing core; 61. Outer substrate; 611. First cavity; 612. Blind hole; 613. Second cavity; 62. Inner substrate; 621. Conductive heating layer; 63. Electrode; 631. Body; 6311. First surface; 6312. Second surface; 632. Electrode foot; 7. Lower atomizing seat; 71. Third sealing element; 72. Air inlet; 8. Bottom shell; 81. Slot; 9. Conductive pin. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0038] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0039] It should be noted that when a component is referred to as "connected to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0040] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] Please see Figures 1-6The ceramic atomizing core 6 provided in this embodiment of the present invention will now be described. The ceramic atomizing core 6 includes an outer substrate 61, an inner substrate 62, and two electrodes 63. A first cavity 611 is provided on one surface of the outer substrate 61, and the inner substrate 62 is disposed within the first cavity 611. A second cavity 613 is provided on the surface opposite to the surface of the first cavity 611. The second cavity 613 is a liquid storage cavity that can store the atomizing liquid matrix. A conductive heating layer 621 is provided on the inner substrate 62. The conductive heating layer 621 is deposited on the surface of the inner substrate 62 away from the outer substrate 61 by a coating process. The outer substrate 61 is provided with four blind holes 612 on both sides of the first cavity 611, respectively located at corresponding positions at both ends near the first cavity 611. The electrode 63 includes a horizontally arranged body 631 and electrode feet 632 vertically arranged at both ends of the body 631. The body 631 is provided with a smooth and flat first surface 6311 and a second surface 6312. When the electrode 63 is installed on the outer substrate 61, the electrode feet 632 are inserted into the blind holes 612, and the body 631 is pressed onto the conductive heating layer 621 of the inner substrate 62 through the second surface 6312 to achieve electrical connection.

[0042] In this invention, by using the second surface 6312 on the body 631, it can contact the conductive heating layer 621 along the width direction of the entire inner substrate 62, increasing the contact area, reducing the contact resistance at the contact point, increasing the heating uniformity of the conductive heating layer 621, and the large contact area can reduce the damage of the electrode to the conductive heating layer 621, increasing the stability of the electrical connection. At the same time, the electrode foot 632 extends into the interior of the outer substrate 61 through the blind hole 612, and the good thermal conductivity of the electrode 63 can be used to preheat the atomizing liquid matrix in the outer substrate 61, improving the fluidity of the atomizing liquid matrix and improving the liquid conduction capacity of the outer substrate 61.

[0043] In some embodiments, the outer matrix 61 and the inner matrix 62 are ceramic fiber bodies composed of ceramic fibers, having a porous structure. (See [link to relevant documentation]). Figures 7-10 The outer substrate 61 is cuboid in shape and made of porous ceramic. The geometric dimensions of the outer substrate 61 are: length 8-10mm, width 3-5mm, height 3-5mm, preferably length 9mm, width 3mm, height 3mm; the inner substrate 62 is cuboid in shape and has geometric dimensions of: length 6-8mm, width 1-2mm, height 1-2mm, preferably length 7mm, width 1mm, height 1mm; the body 631 of the electrode 63 has geometric dimensions of: length 2-3mm, width 1-2mm, thickness 0.5-1mm, preferably length 3mm, width 1mm, thickness 0.5mm; the length of the electrode foot 632 is 1-2mm, preferably 1.5mm; the inner substrate 62 can be accommodated in the first cavity 611 on the outer substrate 61.

[0044] In some embodiments, the dimensions of the second cavity 613 are 4-5 mm in length, 1-2 mm in width, and 1-2 mm in depth, preferably 5 mm in length, 1.5 mm in width, and 1 mm in depth. The surface in contact with the outer substrate 61 and the atomizing liquid matrix is ​​configured as a groove, which increases the contact area between the atomizing liquid matrix and the outer substrate 61, while reducing the penetration distance of the atomizing liquid matrix. This increases the amount of atomizing liquid matrix reaching the inner substrate 62. However, if the length and width of the second cavity 613 are too large, the distance between the second cavity 613 and the outer wall of the outer substrate 61 will be too small, potentially causing the atomizing liquid matrix to seep out from the side wall of the outer substrate 61. If the depth of the second cavity 613 is too large, too much atomizing liquid matrix will seep out from the bottom of the outer substrate 61, resulting in too much atomizing liquid matrix entering the inner substrate 62. This leads to insufficient atomization of the atomizing liquid matrix, causing waste and poor taste.

[0045] In some embodiments, the second cavity 613 is in the shape of a gradually narrowing trumpet, with the cross-sectional area decreasing as it goes deeper. This ensures a large contact area with the atomizing liquid matrix while also preventing the atomizing liquid matrix from seeping out from the edges of the outer substrate 61 as it goes deeper, thus avoiding leakage of the atomizing liquid matrix.

[0046] The body 631 is conductive. In some embodiments, the body 631 is made of copper alloy, which has the characteristics of low resistance and good thermal conductivity.

[0047] Please see Figures 11-13In some embodiments, the electronic atomizing device 100 provided by this utility model includes a housing 1 and a bottom housing 8. The housing 1 is provided with a hook 14, and the bottom housing 8 is provided with a slot 81. The housing 1 and the bottom housing 8 are fixed by engaging the hook 14 and the slot 81. An atomizing assembly is provided inside the housing 1, including an upper atomizing assembly and a lower atomizing assembly. The upper atomizing assembly includes an upper atomizing seat 4 and a ceramic atomizing core 6. A first sealing element 3 is provided between the upper atomizing seat 4 and the housing 1, achieving a seal. The ceramic atomizing core 6 is disposed within the upper atomizing seat 4 and fixed within the upper atomizing seat 4 by a second sealing element 5, achieving a seal. The gap between the second sealing element 5 and the housing 1 forms a mist-emission cavity 13. The lower atomizing assembly includes a lower atomizing... The lower atomizing seat 7 and the conductive nail 9 are provided. The lower atomizing seat 7 is provided with a third sealing element 71, which fixes the lower atomizing seat 7 and the bottom shell 8. The lower atomizing seat 7 is also provided with a hole through which the conductive nail 9 can pass (not shown in the figure). The top of the conductive nail 9 can abut against the first surface 6311 of the electrode (63) to achieve electrical connection. The lower atomizing seat 7 is also provided with an air inlet 72, through which air can enter the atomizing assembly. The outer shell 1 is provided with a mist outlet channel 12 in the middle. The mist outlet channel 12 is provided with a dust cover 2, which can prevent debris and dust from falling into the electronic atomizing device 100 when the electronic atomizing device 100 is not in use. An annular cavity is formed between the side wall of the mist outlet channel 12 and the upper atomizing seat 4 to form a liquid storage cavity 11 for storing the atomizing liquid matrix. When a user uses the electronic atomizing device 100, air is drawn in through the dust cover 2, creating a negative pressure inside the electronic atomizing device 100. Air enters through the air inlet 72 and mixes with the atomized liquid matrix on the conductive heating layer 621. The mixture flows from the mist outlet cavity 13 into the mist outlet channel 12 and finally into the user's mouth for inhalation.

[0048] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A ceramic atomizing core for use in electronic atomizing devices, characterized in that: include The outer substrate (61) has a porous structure. A first cavity (611) is provided on one side of the outer substrate (61). A blind hole (612) is provided on each side of the first cavity (611) near both ends. An inner substrate (62) is disposed in the first cavity (611). A conductive heating layer (621) is provided on the inner substrate (62). The conductive heating layer (621) is deposited on the inner substrate (62) away from the outer substrate (61) by a coating process. The electrode (63) includes a body (631) and electrode feet (632) disposed at both ends of the body (631). The body (631) is in contact with the conductive heating layer (621), and the electrode feet (632) can be inserted into the blind hole (612) for fixation.

2. The ceramic atomizing core according to claim 1, characterized in that: The outer substrate (61) is cuboid in shape with the following geometric dimensions: length 8~10mm, width 3~5mm, height 3~5mm; the inner substrate (62) is cuboid in shape with the following geometric dimensions: length 6~8mm, width 1~2mm, height 1~2mm; the body (631) has the following geometric dimensions: length 2~3mm, width 1~2mm, thickness 0.5~1mm.

3. The ceramic atomizing core according to claim 2, characterized in that: The outer substrate (61) has the following geometric dimensions: length 9mm, width 3mm, height 3mm; the inner substrate (62) has the following geometric dimensions: length 7mm, width 1mm, height 1mm; the body (631) has the following geometric dimensions: length 3mm, width 1mm, thickness 0.5mm.

4. The ceramic atomizing core according to claim 3, characterized in that: The length of the electrode foot (632) is 1~2mm.

5. The ceramic atomizing core according to claim 4, characterized in that: The length of the electrode foot (632) is 1.5 mm.

6. The ceramic atomizing core according to claim 1, characterized in that: The outer substrate (61) is provided with a second cavity (613), which is located on the surface opposite to the surface of the first cavity (611).

7. The ceramic atomizing core according to claim 6, characterized in that: The geometric dimensions of the second cavity (613) are: length 4~5mm, width 1~2mm, and depth 1~2mm.

8. The ceramic atomizing core according to claim 7, characterized in that: The geometric dimensions of the second cavity (613) are: 5 mm in length, 1.5 mm in width, and 1 mm in depth.

9. The ceramic atomizing core according to claim 8, characterized in that: The second cavity (613) is in the shape of a gradually narrowing trumpet, with the cross-sectional area decreasing as it goes deeper.

10. An electronic atomizing device, characterized in that: Includes the ceramic atomizing core as described in any one of claims 1 to 9.

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