An electronic atomizer with improved sealing structure

Abstract

The utility model discloses an electronic atomizer with improved sealing structure relates to electronic atomization device technical field. The electronic atomizer includes the smoke bullet and the tobacco stem. The inside power supply component of tobacco stem is equipped with the sealed silica gel between the shell, and its innovation lies in, and the sealed sleeve is added between the shell and sealed silica gel, and the sealed sleeve is sealed with the shell through the glue pouring mode sleeve joint, forms the double -layer sealing structure, greatly promotes the anti -leakage and the moisture -proof ability, guarantees the service life and safety of product.

Description

Technical Field

[0001] This utility model relates to the field of electronic consumer product technology, and in particular to an aerosol generating device, specifically an electronic atomizer with an improved sealing structure. Background Technology

[0002] Electronic atomizers, as an alternative to traditional tobacco, have been widely used in recent years. Their basic principle is to use a battery to power and heat the e-liquid inside the atomizing chamber, producing an aerosol for the user to inhale.

[0003] Existing electronic atomizers typically consist of a detachable cartridge and a device. The device houses the battery, control circuitry, and other power supply components, while the cartridge contains the e-liquid reservoir and heating coil. The cartridge and device are usually connected and powered via magnetic attraction and electrode contact. However, existing technologies suffer from the following common drawbacks: Sealing issues: The power supply components inside the e-cigarette device (PCB board, battery, etc.) need to be sealed to the outer casing to prevent e-liquid or condensate from leaking from the cartridge from entering and causing short circuits, corrosion, or even battery failure, posing a safety hazard. Currently, most solutions only use a single silicone sleeve for sealing, which has limited sealing effectiveness and is prone to failure after long-term use or accidental impacts.

[0004] Therefore, there is an urgent need for a new electronic atomizer solution that can significantly improve sealing reliability. Utility Model Content

[0005] Therefore, it is necessary to provide an electronic atomizer with an improved sealing structure to address the existing technical problems. This atomizer effectively improves the sealing performance and safety of the product through a dual sealing structure.

[0006] To address the problems of existing technologies, this utility model discloses an electronic atomizer with an improved sealing structure, including a cartridge and a device. The device includes a housing and an internal power supply component housed within the housing. A first sealing silicone is disposed between the internal power supply component and the housing. A sealing sleeve is also disposed between the housing and the first sealing silicone, and the sealing sleeve is sealed to the housing.

[0007] In one embodiment, the sealing sleeve and the outer shell are sealed together by potting adhesive.

[0008] In one embodiment, the internal power supply component includes a main shell, a battery, a PCB board, a rubber plug, and a sealing sleeve. The main shell is I-shaped, with a first receiving groove at the top and a first sealing silicone sealant inside. The battery is housed on one side of the main shell. The PCB board is L-shaped and is attached and fixed to the other side and bottom of the main shell away from the battery. The rubber plug covers the bottom of the PCB board, and the sealing sleeve passes through the rubber plug and the main shell, together with the first sealing silicone sealant, to seal the interior of the internal power supply component.

[0009] In one embodiment, the top of the main shell is provided with a second receiving groove above the first receiving groove, and a second sealing silicone is provided in the second receiving groove, with the outer side of the second sealing silicone abutting against the outer shell.

[0010] In one embodiment, the main housing is provided with a protrusion, and the inner wall of the sealing sleeve is provided with a groove, and the protrusion and the groove are matched and engaged.

[0011] In one embodiment, both the cigarette holder and the cigarette cartridge are cylindrical structures.

[0012] In one embodiment, the outer shell surface of the cartridge is provided with an anti-slip structure.

[0013] In one embodiment, the anti-slip structure consists of multiple strip-shaped protrusions arranged side-by-side along the outer shell of the cartridge.

[0014] In one embodiment, the anti-slip structure consists of multiple protrusions evenly distributed on the lower part of the cartridge shell.

[0015] In one embodiment, a mode switching button is provided at the bottom of the vaporizer. The mode switching button is connected to the main control circuit board of the internal power supply component and is used to switch the output power mode of the electronic atomizer with an improved sealing structure.

[0016] The beneficial effects of this utility model are: 1. Superior sealing performance: The dual sealing structure consisting of "sealing silicone + sealing sleeve + potting process" forms a multi-layered, highly reliable sealing barrier, which greatly reduces the risk of liquid intrusion into the internal circuitry and significantly improves the product's safety performance and service life.

[0017] 2. Stable structure and high reliability: The potting compound not only provides a seal but also enhances the structural strength between the sealing sleeve and the outer shell, making the entire cigarette holder more robust and durable. The symmetrical circuit design ensures that the circuit connection remains stable and reliable regardless of the angle at which it is connected. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall three-dimensional structure of an electronic atomizer with an improved sealing structure according to the present invention.

[0019] Figure 2 This is a three-dimensional exploded view of an electronic atomizer with an improved sealing structure according to this utility model.

[0020] Figure 3 This is a combined cross-sectional view of an electronic atomizer with an improved sealing structure according to the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the internal power supply component of this utility model.

[0022] Figure 5 for Figure 4 A sectional view.

[0023] Figure 6 This is a three-dimensional structural diagram of the cigarette cartridge of this utility model.

[0024] Explanation of annotations in the diagram: A rotating and playable electronic atomizer; 100. Cigarette rod; 101. Outer shell; 102. Internal power supply assembly; 1021. Main shell; 1021a. First receiving slot; 1021b. Second receiving slot; 1022. Battery; 1023. PCB board; 1024. Rubber stopper; 1025. First sealing silicone; 1026. Second sealing silicone; 103. First sealing silicone; 104. Sealing sleeve; 105. Discharge electrode; 106. First magnet; 107. Mode switching button; 108. Battery; 109. Main control circuit board; 200. Cartridge; 201. Cartridge shell; 202. Electrical electrode; 203. Second magnet; 204. Anti-slip structure; 205. Heating wire; 206. Oil reservoir. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] 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. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figures 1 to 6 The present invention provides an electronic atomizer with an improved sealing structure, which is mainly composed of two parts: a vapor rod 100 and a vapor cartridge 200.

[0029] The smoking device 100 includes a slender cylindrical outer shell 101, precision-machined from aerospace-grade aluminum alloy using CNC machining, with an anodized surface treatment, ensuring both structural strength and a pleasant feel. The outer shell 101 houses an internal power supply component 102, which integrates core electronic components such as a battery 108, a main control circuit board 109, and an airflow sensor (not shown). The internal power supply component 102 is externally covered with a first sealing silicone 103, made from food-grade liquid silicone (LSR) through injection molding, with a thickness of 0.8-1.2 mm and a Shore hardness of 40-50A, exhibiting good elasticity and sealing performance. The first sealing silicone 103 not only provides initial insulation and cushioning protection but also effectively prevents the penetration of tiny droplets.

[0030] A sealing sleeve 104 is fitted over the first sealing silicone 103. The sealing sleeve 104 has a wall thickness of 0.8 mm, and its inner diameter is interference-fitted with the outer diameter of the first sealing silicone 103 by an interference amount of 0.1-0.2 mm. The sealing sleeve 104 is placed inside the cavity of the outer shell 101 and is firmly bonded to it by filling the gap between it and the inner wall of the outer shell 101 with epoxy resin. The epoxy resin has a viscosity of 3000-5000 cps and a Shore D hardness of 80-85 after curing, forming a strong sealing wall.

[0031] The specific parameters for the potting process are as follows: the adhesive mixing ratio is A:B = 2:1 (by weight); the potting pressure is 0.2-0.4 MPa; the potting time is 3-5 seconds; and the curing conditions are 80℃ / 30 minutes or room temperature / 24 hours. The amount of adhesive poured should be controlled at 85-90% of the void volume to ensure complete filling while avoiding overflow.

[0032] The internal power supply assembly 102 includes a main housing 1021, a battery 1022, a PCB board 1023, a rubber plug 1024, and a sealing sleeve 104. The main housing 1021 is H-shaped, and a first receiving groove 1021a is provided on the top of the main housing 1021. A first sealing silicone 1025 is provided in the first receiving groove 1021a. The first sealing silicone is used to seal and prevent oil leakage into the internal power supply assembly and damage to the circuit. The battery 1022 is housed on one side of the main housing 1021. The PCB board 1023 is L-shaped and is attached and fixed to the other side and bottom of the main housing 1021 away from the battery. The rubber plug covers the bottom of the PCB board 1023. The sealing sleeve passes through the rubber plug 1024 and the main housing 1021, and together with the first sealing silicone 1025, seals the interior of the internal power supply assembly 102.

[0033] The top of the main housing 1021, above the first receiving groove 1021a, is also provided with a second receiving groove 1021b. A second sealing silicone 1026 is provided inside the second receiving groove 1021b, and the outer side of the second sealing silicone 1026 abuts against the outer housing 101. The second sealing silicone can further seal and prevent leaked oil from seeping into the internal power supply components and damaging the circuitry.

[0034] The main shell 1021 is provided with a protrusion, and the inner wall of the sealing sleeve 104 is provided with a groove. The protrusion and the groove are matched and engaged, so that the sealing sleeve 104 can be fitted into the main shell 1021 and locked in place.

[0035] At the top of the cigarette holder 100, two first magnets 106 (such as neodymium iron boron magnets) are mounted on the internal power supply assembly 102. The two first magnets 106 are arranged in a centrally symmetrical manner. On both sides of the two first magnets 106, two sets of discharge electrodes 105 are symmetrically arranged, made of beryllium copper material, with a gold-plated surface (0.5 μm thick) to ensure good conductivity and corrosion resistance. The two sets of discharge electrodes 105 are connected in parallel to the output terminal of the battery 108, so they provide the same electrical polarity (e.g., both are positive, while the negative terminal is connected through another common path).

[0036] At the bottom of the e-cigarette device 100, there is a mode switching button 107, which uses a silicone button structure and has a waterproof rating of IP54. This button is connected to the main control circuit board 109, and the user can switch between high, medium, and low power operating modes by pressing it a certain number of times.

[0037] The cartridge 200 also has a cylindrical structure, and its outer shell 201 is made of transparent polycarbonate (PC) material, allowing users to clearly see the remaining e-liquid level. Inside the outer shell 201 are an e-liquid reservoir 206 and a heating wire 205. The e-liquid reservoir 206 has a capacity of 2.0mL and uses organic cotton wicking material, providing a moderate wicking rate to prevent leakage or dry burning.

[0038] At the bottom of the cartridge 200, corresponding to the structure of the cigarette holder 100, two second magnets 203 are provided. The polarities of the two second magnets 203 correspond to those of the first magnet 106, generating a strong attraction between them. On both sides of the two second magnets 203, two sets of electrodes 202 are symmetrically arranged, using the same beryllium copper-plated material. The two sets of electrodes 202 are connected in parallel to both ends of the heating wire 205. The heating wire 205 adopts a ceramic core structure with a resistance of 1.2±0.1Ω and an operating temperature range of 180-220℃. Therefore, regardless of which set of electrodes 202 contacts the discharge electrode 105 of the cigarette holder, it can supply power to the same heating wire 205, and the circuit function is completely equivalent.

[0039] A non-slip structure 204 is provided on the lower part of the outer shell 201 of the cartridge 200. In a preferred embodiment, the non-slip structure 204 consists of multiple horizontally arranged (circumferentially surrounding the cartridge) strip-shaped protrusions, each 0.3 mm high, 0.8 mm wide, and spaced 1.2 mm apart, manufactured using an integral injection molding process with the outer shell. In another embodiment, it can also be a uniformly distributed matrix of protrusions, each 1.0 mm in diameter, 0.4 mm high, and spaced 1.5 mm apart, arranged in a diamond pattern. This structure significantly improves the coefficient of friction, helping the user to squeeze and rotate the cartridge 200.

[0040] Detailed explanation of working principle and usage: The user first inserts the cartridge 200 into the insertion chamber of the device 100. Due to the magnetic attraction between the first magnet 106 and the second magnet 203, the cartridge 200 is automatically guided and aligned, adhering to the device 100. At this angle, a set of electrodes 202 and a set of electrodes 105 come into contact and conduct electricity.

[0041] To rotate the cartridge 200, the user can pinch the anti-slip structure 204 and rotate it slightly. Due to the symmetry of the magnetic layout, when rotated 180 degrees, the other pair of first magnets 106 and second magnets 203 will align and attract each other, firmly fixing the cartridge 200 in place again. Simultaneously, the other set of electrodes 202 and the other set of discharge electrodes 105 make contact and conduct electricity. Since the circuit is connected in parallel, the atomization function remains unchanged.

[0042] When the user inhales, the airflow sensor detects the airflow and triggers the main control circuit board 109 to control the battery 108 to supply power to the heating wire 205 through the currently conductive electrode, producing mist. When the user stops inhaling, the power supply stops. The user can switch the power using the bottom button 107.

[0043] To verify the sealing effect of this utility model product, the following experimental tests were conducted: 1. Leakage test: After filling the cartridge with e-liquid and installing it upside down on the e-cigarette rod, it was placed in a 40℃ constant temperature chamber for 24 hours. No leakage was found. In contrast, 15% of the comparison samples with traditional single-layer sealing structure showed slight leakage.

[0044] 2. Waterproof test: Water spray test was conducted according to IP34 rating (10L / min flow rate, spray for 5 minutes), and the internal circuit was kept completely dry; 30% of the traditional structure samples showed internal water ingress.

[0045] 3. Drop test: The product was dropped freely from a height of 1.2 meters onto a concrete surface, repeated 3 times. The product functioned normally and there was no structural damage; 20% of the traditional structural samples showed sealing failure.

[0046] 4. High and low temperature cycle test: After 100 cycles in an environment ranging from -10℃ to 50℃, the sealing performance of this utility model product remains stable and there is no aging failure.

[0047] In another embodiment of this utility model, the sealing sleeve 104 can also be made of PPS (polyphenylene sulfide) engineering plastic, which has a thermal expansion coefficient that is more compatible with the metal shell and can maintain better sealing stability when the temperature changes.

[0048] In another embodiment, the anti-slip structure 204 can be formed with a laser engraving process to create a fine texture on the surface of the outer shell, which maintains the integrity of the appearance while providing a good anti-slip effect.

[0049] In terms of power control, a temperature control mode can also be added, which uses an NTC temperature sensor to monitor the temperature of the heating wire in real time to achieve constant temperature atomization and provide a more stable taste experience.

[0050] This utility model discloses an electronic atomizer with an improved sealing structure, the advantages of which are: 1. Superior sealing performance: The dual sealing structure consisting of "sealing silicone + sealing sleeve + potting process" forms a multi-layered, highly reliable sealing barrier, which greatly reduces the risk of liquid intrusion into the internal circuitry and significantly improves the product's safety performance and service life.

[0051] 2. Stable structure and high reliability: The potting compound not only provides a seal but also enhances the structural strength between the sealing sleeve and the outer shell, making the entire cigarette holder more robust and durable. The symmetrical circuit design ensures that the circuit connection remains stable and reliable regardless of the angle at which it is connected.

[0052] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An electronic atomizer with an improved sealing structure, comprising a cartridge and a vaporizer body, the vaporizer body comprising a housing and an internal power supply assembly housed within the housing, wherein a first sealing silicone sealant is disposed between the internal power supply assembly and the housing, characterized in that, A sealing sleeve is also provided between the outer shell and the first sealing silicone, and the sealing sleeve is sealed to the outer shell.

2. An electronic atomizer with an improved sealing structure according to claim 1, characterized in that, The sealing sleeve and the outer shell are sealed together by applying adhesive.

3. An electronic atomizer with an improved sealing structure according to claim 1, characterized in that, The internal power supply assembly includes a main shell, a battery, a PCB board, a rubber plug, and a sealing sleeve. The main shell is I-shaped, with a first receiving groove at the top and a first sealing silicone sealant inside. The battery is housed on one side of the main shell. The PCB board is L-shaped and is attached and fixed to the other side and bottom of the main shell away from the battery. The rubber plug covers the bottom of the PCB board, and the sealing sleeve passes through the rubber plug and the main shell, together with the first sealing silicone sealant, to seal the interior of the internal power supply assembly.

4. An electronic atomizer with an improved sealing structure according to claim 3, characterized in that, The top of the main shell is located above the first receiving groove and is also provided with a second receiving groove. The second receiving groove is provided with a second sealing silicone, and the outer side of the second sealing silicone abuts against the outer shell.

5. An electronic atomizer with an improved sealing structure according to claim 3, characterized in that, The main shell has protrusions, and the inner wall of the sealing sleeve has grooves. The protrusions and grooves are matched and engaged.

6. An electronic atomizer with an improved sealing structure according to claim 1, characterized in that, Both the cigarette holder and the cigarette cartridge are cylindrical structures.

7. An electronic atomizer with an improved sealing structure according to claim 1, characterized in that, The outer shell of the cigarette cartridge is provided with an anti-slip structure.

8. An electronic atomizer with an improved sealing structure according to claim 7, characterized in that, The anti-slip structure consists of multiple strip-shaped protrusions arranged side by side along the transverse direction of the cartridge shell.

9. An electronic atomizer with an improved sealing structure according to claim 7, characterized in that, The anti-slip structure consists of multiple protrusions evenly distributed on the lower part of the cartridge shell.

10. An electronic atomizer with an improved sealing structure according to claim 1, characterized in that, The bottom of the e-cigarette device is equipped with a mode switching button, which is connected to the main control circuit board of the internal power supply component and is used to switch the output power mode of the electronic atomizer with an improved sealing structure.

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