Atomizing core and electronic atomizing device

Abstract

The utility model provides an atomizing core and an electronic atomizing device.The atomizing core comprises an outer pipe, an inner pipe, a heating assembly and two fixing rings, a plurality of first oil guide holes are formed in the peripheral side of the outer pipe at intervals, a plurality of second oil guide holes are formed in the peripheral side of the inner pipe at intervals, and the two fixing rings are fixedly installed on the inner side walls of the two ends of the outer pipe correspondingly; one end of the inner pipe is arranged in the two fixing rings in a penetrating mode, the inner pipe and the two fixing rings are in interference fit, so that the inner pipe is fixed to the fixing rings, an oil storage cavity is defined by the inner pipe, the outer pipe and the two fixing rings, and the heating assembly is fixed to the inner side wall of the inner pipe. When the heating assembly is heated, tobacco tar in the tar cup firstly flows into the tar storage cavity from the first tar guide hole of the outer pipe, the tar storage cavity can reduce the oil pressure of the tobacco tar and the pressure brought by suction to a great extent, and therefore the flow speed of the tobacco tar is effectively reduced, and the speed of the tobacco tar flowing into the heating assembly from the second tar guide hole is low. And the risk that tobacco tar flows out of the central hole of the atomizing core is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of electronic cigarette technology, and in particular to atomizing cores and electronic atomizing devices. Background Technology

[0002] Electronic cigarettes use an atomizer core to heat and atomize the e-liquid in the reservoir for the user to inhale. Currently, the atomizer core's atomizing hardware is typically a hollow structure with multiple wicking holes on its sides. A heating element is located inside the atomizer core, and wicking cotton is wrapped around the heating element, connecting to the reservoir to act as a wicking medium. However, the existing "e-liquid inlet hole, wicking via side ear" method results in excessively rapid wicking, causing e-liquid to easily leak out from the central hole of the atomizer core after prolonged use. Utility Model Content

[0003] This invention provides an atomizing core and an electronic atomizing device to solve the problem of oil leakage from the atomizing core.

[0004] An atomizing core includes an outer tube, an inner tube, a heating assembly, and two retaining rings. The outer tube has a plurality of first oil guide holes spaced apart on its circumference, and the inner tube has a plurality of second oil guide holes spaced apart on its circumference. The two retaining rings are respectively installed on the inner sidewalls at both ends of the outer tube. The inner tube is embedded in the outer tube and fixedly connected to the two retaining rings. An oil storage cavity is defined between the inner tube, the outer tube, and the two retaining rings. The heating assembly is fixed to the inner sidewall of the inner tube.

[0005] Furthermore, the atomizing core includes an oil storage medium, which is placed inside the oil storage chamber.

[0006] Furthermore, each of the first oil guide holes is at least partially staggered from the second oil guide holes adjacent to the first oil guide hole.

[0007] Furthermore, the total oil inlet area of ​​the outer tube is greater than the total oil inlet area of ​​the inner tube.

[0008] Furthermore, the oil inlet area of ​​each of the second oil guide holes is greater than the oil inlet area of ​​the first oil guide hole.

[0009] Furthermore, the heating assembly includes a liquid guiding component formed by stacking and rolling several layers of sheet-like cotton fabric, a heating element disposed within the liquid guiding component, and pins respectively fixed on both sides of the heating element. The inner layer of the liquid guiding component is linen, and the outer layer is non-woven fabric.

[0010] Furthermore, the atomizing core also includes a base, which is interference-fitted with the inner wall of the lower end of the inner tube, and the base has a groove protruding from its periphery, in which the pin is fixed.

[0011] On the other hand, this utility model also provides an electronic atomizing device, including a battery module, an oil cup assembly, and an atomizing core as described above.

[0012] The beneficial effects of this utility model are as follows: The atomizing core provided in this application includes an outer tube, an inner tube, a heating component, and two fixing rings. The outer tube has multiple first oil guide holes spaced apart on its circumference, and the inner tube has multiple second oil guide holes spaced apart on its circumference. The two fixing rings are respectively fixedly installed on the inner sidewalls at both ends of the outer tube. One end of the inner tube passes through the two fixing rings, and the inner tube and the two fixing rings form an interference fit, thereby fixing the inner tube on the fixing rings. An oil storage cavity is defined between the inner tube, the outer tube, and the two fixing rings. The heating component is fixed on the inner sidewall of the inner tube. The e-liquid in the oil cup flows into the oil storage cavity first from the first oil guide holes of the outer tube. The oil storage cavity can greatly reduce the oil pressure of the e-liquid itself and the pressure brought by the suction, thereby effectively reducing the flow rate of the e-liquid. The e-liquid flowing into the heating component from the second oil guide holes is slower, thereby effectively reducing the risk of e-liquid flowing out from the center hole of the atomizing core. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort. In addition, in the drawings, the same parts use the same reference numerals, and the drawings are not drawn to scale.

[0014] Figure 1 This is a schematic diagram of the atomizing core structure of a specific embodiment provided by this utility model;

[0015] Figure 2 A schematic diagram of the atomizing core in a decomposed state, according to a specific embodiment of this utility model;

[0016] Figure 3 This is a front cross-sectional view of the atomizing core of a specific embodiment provided by this utility model.

[0017] 100. Atomizing core; 1. Outer tube; 11. First oil guide hole; 2. Inner tube; 21. Second oil guide hole; 3. Heating component; 31. Liquid guide; 32. Heating element; 33. Pin; 4. Fixing ring; 5. Base; 51. Slot; 6. Oil storage medium. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments disclosed in this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments disclosed. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] 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 pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0020] The electronic atomizing device includes a battery module (not shown), an oil cup assembly (not shown), and an atomizer coil 100. The atomizer coil 100 and the oil cup assembly are combined to form the main body of the atomizer. The oil cup assembly contains e-liquid, and the atomizer coil 100 is fixed in the middle of the oil cup. The atomizer coil 100 can heat and atomize the e-liquid to produce vapor. The oil cup assembly is also filled with an integrated cotton on the outer periphery of the atomizer coil 100. The integrated cotton is a plant fiber with strong oil absorption capacity. The e-liquid is locked in the integrated cotton, reducing the fluidity of the e-liquid and reducing the risk of atomizer leakage.

[0021] This paper discloses an atomizing core 100 including an outer tube 1, an inner tube 2, a heating element 3, and two fixing rings 4. The outer tube 1 has a plurality of first oil guide holes 11 spaced apart on its circumference. Correspondingly, the inner tube 2 has a plurality of second oil guide holes 21 spaced apart on its circumference. The two fixing rings 4 are respectively fixedly installed on the inner sidewalls at both ends of the outer tube 1. One end of the inner tube 2 passes through the two fixing rings 4, and the inner tube 2 and the two fixing rings 4 form an interference fit, thereby fixing the inner tube 2 on the fixing rings 4. An oil storage cavity is defined between the inner tube 2, the outer tube 1, and the two fixing rings 4. The heating element 3 is fixed to the inner sidewall of the inner tube 2. An oil storage chamber is formed between the inner tube 2 and the outer tube 1. The e-liquid in the oil cup flows into the oil storage chamber from the first oil guide hole 11 of the outer tube 1. The e-liquid can be temporarily stored in the oil storage chamber. With the obstruction of the outer wall of the inner tube 2, the flow rate of the e-liquid is greatly reduced. As a result, the e-liquid flowing into the heating component 3 from the second oil guide hole 21 is slower, thereby effectively reducing the risk of e-liquid flowing out from the center hole of the atomizing core 100.

[0022] Specifically, the outer tube 1 has four first oil guide holes 11 evenly distributed on its periphery, and the inner tube 2 has three second oil guide holes 21 evenly distributed on its periphery. The total oil inlet area of ​​the four first oil guide holes 11 is slightly larger than the total oil inlet area of ​​the three second oil guide holes 21. Therefore, during vaping, the amount of e-liquid entering the heating component 3 in a single operation is less than the amount of e-liquid entering the oil storage chamber in a single operation. The oil storage chamber always stores e-liquid, preventing the atomizing coil 100 from burning and ensuring the atomization effect.

[0023] Furthermore, the first oil guide hole 11 and the adjacent second oil guide hole 21 are at least partially staggered, increasing the path for e-liquid to flow into the heating element 32. Combined with the obstruction of the outer wall of the inner tube 2, this effectively reduces the e-liquid flow rate. Figure 2 As shown, the first oil guide hole 11 is rectangular, and the second oil guide hole 21 is racetrack-shaped. The oil inlet area of ​​a single first oil guide hole 11 is smaller than the oil inlet area of ​​a single second oil guide hole 21. The e-liquid temporarily stored in the oil storage cavity can slowly flow into the heating element 3.

[0024] In one embodiment, the atomizer core 100 further includes an e-liquid storage medium 6, which fills the e-liquid storage cavity. The e-liquid storage medium 6 is a polymer cotton fabric with multiple micropores. The cotton fabric has good density, which allows for good e-liquid conduction and can also greatly reduce the oil pressure of the e-liquid itself and the pressure brought by inhalation, thereby effectively reducing the flow rate of e-liquid temporarily stored in the e-liquid storage cavity and preventing leakage.

[0025] In one embodiment, see Figure 2 and Figure 3 The heating assembly 3 includes a liquid guide 31, a heating element 32, and several pins 33. The liquid guide 31 is composed of several layers of sheet-like cotton fabric, and the heating element 32 has a crisscrossing mesh structure. When the heating element 32 is energized, it generates heat to atomize the e-liquid into an aerosol. There are two pins 33, which are welded to both sides of the heating element 32. During assembly, the heating element 32 is laid flat on the liquid guide 31, and then a cotton swab is used to wind the liquid guide 31 and the heating element 32 to form a cylindrical heating assembly 3. The inner layer of the liquid guide 31 is linen, and the outer layer is non-woven fabric. Specifically, the inner layer of the liquid guiding component 31 in contact with the heating element 32 needs to have good heat resistance, and the outer layer of the liquid guiding component 31 in contact with the aerosol generating matrix needs to have a good liquid guiding rate. The liquid guiding component 31 adopts a distribution pattern of inner flax and outer non-woven fabric, which on the one hand makes the liquid guiding rate of the liquid guiding component 31 fast, and on the other hand, the liquid guiding component 31 can withstand the high temperature of the heating element and avoid scorching.

[0026] In one embodiment, such as Figure 3As shown, the atomizing core 100 also includes a base 5, which is interference-fitted with the inner wall of the lower end of the inner tube 2. The base 5 has a groove 51 protruding from its periphery, which fixes the pin 33 and can prevent the heating element 32 from deforming due to the pulling of the pin 33 during the assembly process.

[0027] The above are merely specific embodiments of the present invention, enabling those skilled in the art to understand or implement this disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An atomizing core, characterized in that, The device includes an outer tube, an inner tube, a heating assembly, and two fixing rings. The outer tube has multiple first oil guide holes spaced apart on its circumference, and the inner tube has multiple second oil guide holes spaced apart on its circumference. The two fixing rings are respectively installed on the inner sidewalls at both ends of the outer tube. The inner tube is embedded into the outer tube and fixedly connected to the two fixing rings. An oil storage cavity is defined between the inner tube, the outer tube, and the two fixing rings. The heating assembly is fixed to the inner sidewall of the inner tube.

2. The atomizing core according to claim 1, characterized in that, The atomizing core includes an oil storage medium, which is placed inside the oil storage chamber.

3. The atomizing core according to claim 1, characterized in that, Each of the first oil guide holes is at least partially staggered from the second oil guide holes adjacent to the first oil guide hole.

4. The atomizing core according to claim 3, characterized in that, The total oil inlet area of ​​the outer tube is greater than the total oil inlet area of ​​the inner tube.

5. An atomizing core according to claim 4, characterized in that, The oil inlet area of ​​each of the second oil guide holes is greater than the oil inlet area of ​​each of the first oil guide holes.

6. The atomizing core according to claim 1, characterized in that, The heating assembly includes a liquid guiding component formed by stacking and rolling several layers of sheet-like cotton fabric, a heating element disposed within the liquid guiding component, and pins respectively fixed on both sides of the heating element. The inner layer of the liquid guiding component is linen, and the outer layer is non-woven fabric.

7. An atomizing core according to claim 6, characterized in that, The atomizing core also includes a base, which is interference-fitted with the inner wall of the lower end of the inner tube. The base has a groove protruding from its periphery, and the pin is fixed in the groove.

8. An electronic atomizing device, characterized in that, The electronic atomizing device includes a battery module, an oil cup assembly, and an atomizing core as described in any one of claims 1-7.

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