CN111264907A - Heating components, atomizers and electronic cigarettes - Google Patents

Abstract

The invention relates to a heating component, an atomizer and an electronic cigarette. The heating component is used for atomizing e-liquid, including a base body, the base body is porous ceramics, the base body has a liquid conducting surface and an atomizing surface, the e-liquid enters the base body from the liquid conducting surface, and the base body is provided with through holes, and the through holes are self-conducting from the liquid conducting surface. Extends Through to Fog Surface setting. When the above heating component is used as a heating component of the atomizer by opening a through hole on the base, the oil storage chamber is not easy to form a negative pressure with the consumption of the e-liquid, and the e-liquid in the oil storage chamber can continue to reach the bottom of the base. The atomized surface makes the atomizer less likely to produce burnt smell due to dry burning, improving user experience.

Description

Heating components, atomizers and electronic cigarettes

technical field

The invention relates to the technical field of smoking articles, in particular to a heating component, an atomizer and an electronic cigarette.

Background technique

An electronic cigarette is an electronic product that imitates cigarettes. It mainly converts e-liquid into vapor through atomization and other means for users to smoke.

The current electronic cigarette is mainly composed of an atomizer and a battery. The atomizer is a component that atomizes the e-liquid into smoke. The atomizer includes an oil storage chamber that stores the e-liquid and a heating component that atomizes the e-liquid into smoke. However, with the consumption of the e-liquid, the atomizer is easy to conduct liquid and not work. The burnt smell appears, which brings a bad smoking experience to the user.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a smooth liquid-guiding atomizer.

In addition, there are also provided a heating component that can make the liquid guide of the atomizer smooth, and an electronic cigarette that is not prone to burnt smell.

A heating component for atomizing e-liquid, including a base body, the base body is porous ceramics, the base body has a liquid-conducting surface, the e-liquid enters the base body from the liquid-conducting surface, and the base body is opened There are through holes, and the through holes are arranged along the flow direction of the e-liquid.

When the above heating component is used as a heating component of the atomizer by opening a through hole on the base, the oil storage chamber is not easy to form a negative pressure with the consumption of the e-liquid, and the e-liquid in the oil storage chamber can continue to reach the bottom of the base. The atomized surface makes the atomizer less likely to produce burnt smell due to dry burning, improving user experience.

In one embodiment, the diameter of the through hole ranges from 0.1 mm to 0.8 mm.

In one embodiment, the number of the through holes is multiple, and the multiple through holes are formed on the base body at intervals.

In one of the embodiments, the number of the through holes is two.

In one embodiment, the liquid conducting surface is opposite to the atomizing surface, the heating component further includes a heating element, the heating element is arranged on the atomizing surface, and the heating element includes a contact electrode and a heating element. The heating circuit is electrically connected to the contact electrode, and the through hole is close to the connection between the contact electrode and the heating circuit.

In one embodiment, the contact electrodes are strip-shaped, the number of the contact electrodes is two, the two contact electrodes are arranged in parallel and spaced apart, the heating circuit is S-shaped, and the heating circuit is arranged on two Between each of the contact electrodes, both ends of the heating circuit are electrically connected to the two contact electrodes, respectively.

In one embodiment, the width of the contact electrode is 1 mm˜2 mm, and the thickness of the contact electrode is 10 μm˜50 μm; and/or

The width of the heating circuit is 0.3 mm˜0.5 mm, and the thickness of the heating circuit is 40 μm˜80 μm.

In one embodiment, the thickness of the substrate is 1.5mm˜3.0mm; and/or

The porosity of the matrix is 48%-60%.

An atomizer comprising:

an oil storage cavity for storing e-liquid, and the oil storage cavity has an oil outlet;

A heating component for atomizing the e-liquid, the heating component includes a base body and a heating element, the base body is a porous ceramic, the base body has a liquid-conducting surface and an atomizing surface, and the heating element is arranged on the mist On the chemical surface, the liquid guide surface is close to the oil outlet, the e-liquid in the oil storage chamber enters the base body from the liquid guide surface, and the base body is provided with a through hole, and the through hole extends from the the liquid guiding surface extends through to the atomizing surface and is arranged;

The liquid guiding member is arranged on the liquid guiding surface and covers the oil outlet, and the e-liquid in the oil storage cavity passes through the liquid guiding member to the liquid guiding surface.

In one embodiment, the diameter of the through hole ranges from 0.1 mm to 0.8 mm.

In one of the embodiments, the number of the through holes is two.

In one embodiment, the liquid-conducting member is a liquid-conducting cotton.

In one embodiment, the atomizer further includes a sealing member, the sealing member is arranged between the cavity wall of the oil storage cavity and the side wall of the base body, so as to seal the oil storage cavity and the the gap between the substrates.

A preparation method of a heating component, comprising:

preparing a plate-shaped substrate, the substrate is a porous ceramic;

preparing a plurality of spaced heating elements on the substrate; and

After opening a plurality of through holes on the base body, the base body is cut to obtain a plurality of heating components, each of which includes the heating element and the through holes.

In one embodiment, the cutting is laser cutting.

An electronic cigarette includes the above-mentioned heating component, the heating component prepared by the method for preparing the above-mentioned heating component, or the above-mentioned atomizer.

Description of drawings

1 is a partial view of an atomizer according to an embodiment;

Fig. 2 is the top view of the heating assembly of the atomizer shown in Fig. 1;

FIG. 3 shows the heat generating components to be cut in an array distribution on the substrate.

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Some embodiments of the invention are shown in the drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

Referring to FIGS. 1 and 2 , the atomizer 10 of an embodiment includes an oil storage chamber 110 and a heating element 120 .

The oil storage chamber 110 is used for storing e-liquid, and has an oil outlet 111 .

The heating assembly 120 is used to atomize the e-liquid, and the heating assembly 120 includes a base body 121 and a heating element 123 . The base body 121 is a porous ceramic, and the base body 121 has a liquid conducting surface 121 a and an atomizing surface 121 b opposite to the liquid conducting surface 121 a , and the liquid conducting surface 121 a is disposed close to the oil outlet 111 . The e-liquid in the oil storage chamber 110 enters the base body 121 from the liquid guide surface 121a and flows to the atomization surface 121b, thereby being atomized. The base body 121 is provided with a through hole 121c, which extends from the liquid guide surface 121a to the atomization surface. 121b settings. In this embodiment, the through hole 121c is perpendicular to the liquid conducting surface 121a and the atomizing surface 121b.

Specifically, the material of the substrate 121 is at least one of diatomite, quartz, alumina, silicon carbide and cordierite. Of course, in some other embodiments, the material of the base body 121 is not limited to the above description, as long as it can be used as a material for preparing porous ceramics. The porosity of the base body 121 is 48%-60%; the thickness of the base body 121 is 1.5mm-3.0mm. Of course, the thickness of the base body 121 is not limited to the above description, and can also be adjusted according to requirements.

Further, the diameter of the through hole 121c is 0.1 mm˜0.8 mm. Further, the diameter of the through hole 121c is 0.3 mm˜0.5 mm. The diameter of the through hole 121c is set according to the above-mentioned setting, so that the liquid can be drained smoothly and the phenomenon of liquid leakage will not occur. If the diameter of the through hole 121c is too small, the ventilation effect is not obvious, and the liquid guiding effect is not obvious.

Specifically, the number of the through holes 121c is at least one. When the number of the through holes 121c is multiple, the multiple through holes 121c are formed on the base body 121 at intervals, and the multiple through holes 121c are all arranged along the flow direction of the e-liquid. Further, the number of the through holes 121c is two. Setting the number of the through holes 121c to two can make the overall downward flow velocity of the e-liquid more uniform. Of course, the shape of the through hole 121c is not particularly limited, as long as it penetrates through the base body 121 .

In one embodiment, the thickness of the base body 121 is 1.5 mm˜3.0 mm, the diameter of the through holes 121 c is 0.1 mm˜0.8 mm, the number of the through holes 121 c is two, and the two through holes 121 c are opened on the base body 121 at intervals. .

The heating element 123 is disposed on the atomizing surface 121b, and is used for providing a heat source to atomize the e-liquid. Specifically, the heating element 123 includes a heating circuit 123a and a contact electrode 123b. The contact electrodes 123b are provided on both ends of the heating circuit 123a, and are used to connect the power supply and the heating circuit 123a. Further, the heating circuit 123a has a width of 0.3 mm to 0.5 mm and a thickness of 40 μm to 80 μm. The contact electrode 123b has a width of 1 mm to 2 mm, a thickness of 10 μm to 50 μm, and a length of 2 mm to 4 mm.

In one embodiment, the contact electrodes 123b are strip-shaped, the number of the contact electrodes 123b is two, and the two contact electrodes 123b are arranged at intervals. The heating circuit 123a is arranged in an S shape between the two contact electrodes 123b, two ends of the heating circuit 123a are respectively electrically connected to one end of the two contact electrodes 123b, and the through hole 121c is close to the connection between the contact electrode 123b and the heating circuit 123a.

In the illustrated embodiment, the contact electrodes 123b are rectangular, and the two contact electrodes 123b are arranged in parallel and spaced apart; the heating circuit 123a is S-shaped and located between the two contact electrodes 123b; and two through holes 121c are arranged between the two contact electrodes 123b and on both sides of the heating circuit 123a. Of course, in other embodiments, the thickness, shape and size of the contact electrode 123b are not limited to the above description, and the thickness, shape and size of the heating circuit 123a are not limited to the above description, and can be adjusted according to actual needs.

In one of the embodiments, the atomizer 10 further includes a liquid guide member 130 . The liquid guiding member 130 is disposed on the liquid guiding surface 121a for absorbing the e-liquid. Generally, the liquid guiding member 130 is kept moist to keep the e-liquid atomized, so as to avoid the burning phenomenon caused by too little e-liquid when the e-liquid is in direct contact with the substrate 121 . In addition, when the diameter of the through hole 121c is relatively large and it is more difficult for the liquid guide to be blocked, the arrangement of the liquid guide member 130 can also make it more difficult for the e-liquid to flow out directly from the through hole 121c without being atomized, thereby increasing the smoke The utilization rate of oil improves the safety of electronic cigarettes. Further, the liquid guiding member 130 is a liquid guiding cotton; the thickness of the liquid guiding member 130 is 0.4 mm˜0.8 mm. Of course, in some other embodiments, the liquid-conducting member 130 is not limited to a liquid-conducting cotton, and other materials with a liquid-conducting function commonly used in the art can also be used. The thickness of the liquid guide member 130 is also not limited to the above description, and can also be adjusted according to actual needs.

In the illustrated embodiment, the liquid guide member 130 completely covers the liquid guide surface 121a. Of course, in some other embodiments, the liquid guiding member 130 may cover part of the liquid guiding surface 121a, as long as the liquid guiding member 130 completely shields the through hole 121c.

In one of the embodiments, the nebulizer 10 also includes a seal 150 . The sealing member 150 is disposed between the cavity wall of the oil storage cavity 110 and the side wall of the base body 121 to seal the gap between the oil storage cavity 110 and the base body 121 . Specifically, the sealing member 150 has an accommodating cavity communicating with the oil storage cavity 110 , the outer wall of the sealing member 150 is in sealing connection with the side wall of the oil storage cavity 110 , and the base body 121 is accommodated in the accommodating cavity and is sealingly connected with the side wall of the accommodating cavity. Further, the sealing member 150 is formed by connecting a hollow thick part 151 and a hollow thin part 153, the thick part 151 and the thin part 153 have the same central axis, a groove is formed at the connection between the thick part 151 and the thin part 153, and the base 121 abuts the groove. Further, the thickness of the thick portion 151 is 1.3 mm to 1.5 mm, and the thickness of the thin portion 153 is 0.4 mm to 0.8 mm.

In the illustrated embodiment, the liquid guiding member 130 shields the oil outlet 111 , and the side wall and part of the surface of the liquid guiding member 130 close to the oil outlet 111 are in contact with the sealing member 150 , and the liquid guiding member 130 shields the through hole 121 c .

When the above atomizer 10 is in use, the e-liquid in the oil storage chamber 110 flows out of the oil storage chamber 110 from the oil outlet 111 , and then reaches the atomization surface 121 b of the base body 121 through the liquid guide surface 121 a of the base body 121 , and then reaches the atomization surface 121 b of the base body 121 The atomizing surface 121b is heated by the heating element 123 to be atomized, thereby forming smoke. The above-mentioned atomizer 10 opens the through hole 121c on the base body 121 in the same direction as the flow direction of the e-liquid, so that the oil storage chamber 110 is more easily communicated with the outside world, and it is not easy to form a negative pressure with the consumption of e-liquid, thereby making the oil storage chamber 110 easier to communicate with the outside world. The e-liquid in 110 can continue to reach the atomizing surface 121b of the base 121, so that the atomizer 10 is less likely to produce a burnt smell due to dry burning, improving user experience.

An electronic cigarette according to an embodiment includes the above-mentioned atomizer 10 or the above-mentioned heating element 120 .

The above-mentioned electronic cigarette includes the above-mentioned atomizer 10 or the above-mentioned heating element 120 , which is less likely to cause a burnt smell due to the unsmooth liquid conduction, thereby improving user experience.

Referring to FIGS. 2 to 3 , a method for manufacturing the heating element 120 according to an embodiment includes the steps of opening a through hole 121 c on the base body 121 and preparing the heating element 123 . Specifically, the method includes steps S110 to S140.

Step S110 , the base body 121 is prepared.

Specifically, the base body 121 is obtained by sintering the green body after being shaped. The material of the substrate 121 is at least one of diatomite, quartz, alumina, silicon carbide and cordierite. Of course, in some other embodiments, the material of the base body 121 is not limited to the above description, as long as the porous ceramic can be prepared. Further, the sintering temperature is 1000° C.˜1180° C.; the porosity of the base body 121 is 48%˜60%.

In this embodiment, the shape of the embryonic body is a plate shape, and the thickness of the base body 121 is 1.5 mm to 3.0 mm. Of course, in other embodiments, the shape, thickness and size of the embryo body can be designed according to specific requirements. Of course, when a plurality of base bodies 121 are prepared in an array manner, the thickness of the base bodies 121 should not be too thick, otherwise the amount of deformation during sintering will be large.

Step S120 , preparing the heating element 123 on the base body 121 .

Specifically, the step of preparing the heating element 123 on the base body 121 includes preparing a heating circuit 123a and preparing a contact electrode 123b.

In one embodiment, the step of preparing the heating element 123 on the base body 121 includes: firstly using a surface of the base body 121 as the atomized surface 121b, forming a circuit pattern on the atomized surface 121b by printing, and then sintering to obtain a heating circuit 123a; Next, an electrode pattern is formed on the base 121 on which the heating circuit 123a is formed by printing, wherein the electrode pattern is connected with the heating circuit 123a, and then sintered to obtain a contact electrode 123b. Further, in the step of preparing the heating circuit 123a, the sintering temperature is 950°C to 1100°C. In the step of preparing the contact electrode 123b, the sintering temperature is 950°C to 1100°C, and the sintering temperature in the step of preparing the contact electrode 123b is lower than the sintering temperature in the step of preparing the heating circuit 123a.

In this embodiment, the step of preparing the heating element 123 on the base 121 includes: providing a first template, arranging the first template on the atomized surface 121b, and printing on the first template to form a plurality of Circuit patterns arranged at intervals (such as array distribution) are then sintered to obtain a plurality of heating circuits 123a; then a second template is provided, the second template is arranged on the atomized surface 121b, and the atomized surface 121b is printed on the second template A plurality of electrode patterns are formed thereon, and each electrolytic pattern is connected to both ends of the corresponding heating circuit 123a, and then sintered to form a plurality of heating elements 123 arranged at intervals.

In one embodiment, the heating circuit 123a has a width of 0.3 mm˜0.5 mm, and a thickness of 40 μm˜80 μm. The contact electrode 123b has a width of 1 mm to 2 mm, a thickness of 10 μm to 50 μm, and a length of 2 mm to 4 mm.

In the illustrated embodiment, the contact electrodes 123b are rectangular, and the two contact electrodes 123b are arranged in parallel and spaced apart; the heating circuit 123a is S-shaped and located between the two contact electrodes 123b. Of course, in other embodiments, the thickness, shape and size of the contact electrode 123b are not limited to the above description, and the thickness, shape and size of the heating circuit 123a are not limited to the above description, and can be adjusted according to actual needs.

Certainly, the steps of preparing the heating circuit 123a and the steps of preparing the contact electrodes 123b are not strictly sequenced. In other embodiments, the contact electrodes 123b may be prepared first, and then the heating circuit 123a may be prepared. Of course, in some other embodiments, the circuit pattern and the electrode pattern can also be prepared first, and then the circuit pattern and the electrode pattern can be simultaneously sintered to obtain the heating element 123 .

Step S130 , opening a through hole 121 c on the base body 121 .

Specifically, through holes 121c are formed on the base body 121 by using a laser. Further, the diameter of the through hole 121c is 0.1 mm˜0.8 mm. Further, the diameter of the through hole 121c is 0.3 mm˜0.5 mm. Of course, in some other embodiments, the through holes 121c may also be formed in other common manners in the art, and the extension direction of the through holes 121c is the same as the flow direction of the e-liquid. In the illustrated embodiment, each heating element 123 has two through-holes 121c, and the two through-holes 121c are arranged at intervals on the inner side of the two contact electrodes 123b and located on both sides of the heating circuit 123a.

In this embodiment, through holes 121 c are formed on the base body 121 after the heating element 123 is prepared. Of course, in other embodiments, the heating element 123 can also be prepared after opening the through hole 121c on the base body 121 .

Step S140 , cutting to obtain the heating element 120 .

Specifically, the base body 121 having a plurality of heating elements 123 is cut by laser to obtain a plurality of heating components 120 . Each heating element 122 has a heating element 123 and a corresponding through hole 121c. In this embodiment, the laser power is 500W to 1000W. Through laser cutting, the cutting edge can be sintered by the energy of the laser to prevent the powder from falling off the edge after cutting. Of course, in other embodiments, other cutting methods commonly used in the art can also be used to cut the base body 121 having a plurality of heating elements 123 .

The above-mentioned preparation method of the heating element 120 improves the production efficiency by first preparing the base body 121, then preparing a plurality of heating elements 123 and opening holes 121c on the base body 121, and finally cutting to obtain a plurality of heating elements 120. In addition, in the above-mentioned preparation method of the heating element 120, since the dimensional change of the base body 121 before and after sintering can be determined, that is, the thickness of the base body 121 after sintering is a fixed value, which avoids the size of the base body 121 when the base body 121 and the heating circuit 123a are sintered at the same time. It deforms simultaneously with the heating circuit 123a. In addition, when the heating circuit 123a is subsequently fired, the deformation amount of the heating circuit 123a is also very small. Therefore, the above-mentioned preparation method of the heating element 120 also avoids the problem of a large difference between the actual size and the designed size caused by the sintering of the base body 121 together with the heating circuit 123a and the contact electrode 123b, and can precisely control the size of each heating element.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (16)

1. A heating element for atomizing e-liquid, characterized in that it comprises a substrate, and the substrate is a porous ceramic, and the substrate has a liquid-conducting surface and an atomizing surface, and the e-liquid is formed by the liquid-conducting surface. Entering into the base body, the base body is provided with a through hole, and the through hole extends from the liquid guide surface to the atomization surface. 2 . The heating component according to claim 1 , wherein the diameter of the through hole is 0.1 mm˜0.8 mm. 3 . 3 . The heating component according to claim 1 , wherein the number of the through holes is plural, and the plural through holes are formed on the base body at intervals. 4 . 4 . The heating component according to claim 3 , wherein the number of the through holes is two. 5 . 5. The heating element according to claim 1, wherein the liquid conducting surface is opposite to the atomizing surface, the heating element further comprises a heating element, and the heating element is arranged on the atomizing surface , the heating element includes a contact electrode and a heating circuit electrically connected with the contact electrode, and the through hole is close to the connection between the contact electrode and the heating circuit. 6 . The heating component according to claim 5 , wherein the contact electrodes are strip-shaped, the number of the contact electrodes is two, the two contact electrodes are arranged in parallel and spaced apart, and the heating circuit is in the shape of an S. 7 . The heating circuit is arranged between the two contact electrodes, and the two ends of the heating circuit are respectively electrically connected to the two contact electrodes. 7 . The heating element according to claim 5 , wherein the width of the contact electrode is 1 mm˜2 mm, and the thickness of the contact electrode is 10 μm˜50 μm; and/or The width of the heating circuit is 0.3 mm˜0.5 mm, and the thickness of the heating circuit is 40 μm˜80 μm. 8 . The heating element according to claim 5 , wherein the thickness of the base body is 1.5 mm˜3.0 mm; and/or The porosity of the matrix is 48%-60%. 9. An atomizer, characterized in that, comprising: an oil storage cavity for storing e-liquid, and the oil storage cavity has an oil outlet; A heating component for atomizing the e-liquid, the heating component includes a base body and a heating element, the base body is a porous ceramic, the base body has a liquid-conducting surface and an atomizing surface, and the heating element is arranged on the mist On the chemical surface, the liquid guide surface is close to the oil outlet, the e-liquid in the oil storage chamber enters the base body from the liquid guide surface, and the base body is provided with a through hole, and the through hole extends from the the liquid guiding surface extends through to the atomizing surface and is arranged; The liquid guiding member is arranged on the liquid guiding surface and covers the oil outlet, and the e-liquid in the oil storage cavity passes through the liquid guiding member to the liquid guiding surface. 10 . The atomizer according to claim 9 , wherein the diameter of the through hole is 0.1 mm˜0.8 mm. 11 . 11. The atomizer according to claim 9, wherein the number of the through holes is two. 12. The atomizer according to any one of claims 9 to 11, wherein the liquid guiding member is a liquid guiding cotton. 13 . The atomizer according to claim 12 , wherein the atomizer further comprises a sealing member, and the sealing member is arranged between the cavity wall of the oil storage chamber and the side wall of the base body. 14 . , so as to seal the gap between the oil storage cavity and the base body. 14. A preparation method of a heating component, characterized in that, comprising: preparing a plate-shaped substrate, the substrate is a porous ceramic; preparing a plurality of spaced apart heating elements on the substrate; and After opening a plurality of through holes on the base body, the base body is cut to obtain a plurality of heating components, each of which includes the heating element and the through holes. 15. The method for preparing a heating element according to claim 14, wherein the cutting is laser cutting. 16. An electronic cigarette, characterized in that it comprises the heating component according to any one of claims 1 to 8, the heating component prepared by the method for preparing a heating component according to any one of claims 14 to 15, or claim 9 The atomizer of any one of ~13.

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