A magnet assembly structure for a refillable electronic cigarette

Abstract

This utility model discloses a magnet assembly structure for a pod-type electronic cigarette, comprising a cartridge and a main unit. The cartridge has a first groove at its bottom, into which a first magnet is embedded. A second groove is located at the bottom of the insertion cavity, into which a second magnet is embedded. The first and second magnets are magnetically attracted to each other. The first and second grooves have identical structures. The sidewall of the first groove has multiple raised ribs perpendicular to its bottom. One end of each rib near the groove opening is beveled, serving as a guide for the insertion of the first magnet. The first magnet is interference-fitted to the raised ribs. A gap is formed between the sidewall of the first magnet and the sidewall of the first groove, filled with glue, thus firmly bonding the first magnet to the first groove. Both the first and second grooves have protrusions at their bottoms, forming glue reservoirs, ensuring glue adhesion around the magnet and ensuring a secure and reliable magnet assembly.

Description

Technical Field

[0001] This disclosure relates to the field of electronic cigarette technology, and more particularly to a magnet assembly structure for use in refillable electronic cigarette cartridges. Background Technology

[0002] Electronic cigarettes are devices that use an electrically heated element. The element guides e-liquid through wicking holes or wicking cotton, heating the e-liquid to form vapor aerosol particles. Among these, pod-based electronic cigarettes are particularly popular due to their compact size, portability, and the ability to repeatedly replace cartridges with different flavors, allowing for convenient switching between different tastes. A pod-based electronic cigarette consists of a cartridge and a main unit. The main unit has a cavity for inserting the cartridge. Typically, a first magnet is embedded in the bottom of the cartridge, and a second magnet is embedded in the bottom of the cavity, creating a magnetic connection when the cartridge is inserted. Current magnet assembly structures for pod-based electronic cigarettes usually involve embedding the magnet in a mounting slot, with the magnet interference-fitted into the slot to fix it in place. This method requires high-precision control of the size parameters of the mounting slot and minimizing tolerances during manufacturing. Otherwise, after installing the magnet, it may be too loose, causing it to easily fall off later; or too tight, making installation difficult and potentially causing the casing to deform. Therefore, the existing magnet assembly structure of pod-based electronic cigarettes needs to be optimized and improved to reduce precision requirements, ensure smooth magnet assembly without easy detachment, and thus improve product quality. Utility Model Content

[0003] To achieve the above objectives, this disclosure proposes a magnet assembly structure for a replaceable cartridge electronic cigarette, which solves the problems of existing magnet assembly structures having high processing precision requirements, or magnets that are too loose in the mounting slot and easily fall off, or too tight and difficult to install.

[0004] According to one aspect of this disclosure, a magnet assembly structure for a pod-type electronic cigarette is provided. The pod-type electronic cigarette includes two parts: a cartridge and a main unit. The main unit has an insertion cavity for inserting the cartridge. The bottom of the cartridge has a first groove, in which a first magnet is embedded. The bottom of the insertion cavity has a second groove, in which a second magnet is embedded. When the cartridge is inserted into the insertion cavity, the first magnet and the second magnet are magnetically attracted to each other. The first groove and the second groove have the same structure. The sidewall of the first groove is uniformly provided with multiple raised ribs perpendicular to the bottom of the groove. One end of each raised rib near the opening of the first groove is a chamfered portion. The chamfered portion of the raised rib is used for assembly guidance when the first magnet is inserted. The first magnet is interference-fitted with the raised rib. A gap is formed between the sidewall of the first magnet and the sidewall of the first groove. The gap is filled with glue, and the first magnet is firmly bonded to the first groove.

[0005] Furthermore, the bottom of the first groove is provided with a plurality of protrusions evenly distributed along the edge of the bottom of the groove. The outer side of the plurality of protrusions forms a glue storage tank with the bottom of the groove. The glue storage tank is filled with glue. When the first magnet is embedded in the first groove, the bottom of the first magnet is bonded to the glue in the glue storage tank.

[0006] Furthermore, the first groove adopts any shape structure with a cross-section of circular, square, rectangular, or elongated elliptical, and the shape of the first magnet is adapted to the shape of the first groove.

[0007] Furthermore, the e-cigarette cartridge includes an e-cigarette cartridge shell, an atomizing core, an atomizing core oil seal silicone component, and a bottom cover. The bottom cover is made of plastic material, and the first groove is located at the bottom of the bottom cover and is integrally injection molded with the bottom cover.

[0008] Furthermore, the main unit of the cigarette device includes a cigarette device shell, an inner bracket, a battery, a control board, and a microphone sensor disposed on the inner bracket. The inner bracket is fitted inside the cigarette device shell, and the upper end of the inner bracket is the bottom of the insertion cavity. The inner bracket is made of plastic material, and the second groove is disposed on the upper end of the inner bracket and is integrally injection molded with the inner bracket.

[0009] Furthermore, the adhesive used is any one of epoxy resin AB glue, acrylic structural glue, or UV glue.

[0010] Furthermore, both the first magnet and the second magnet are neodymium iron boron magnets, and both the first magnet and the second magnet have a nickel-copper-nickel three-layer plating or a zinc plating.

[0011] The beneficial effects of this utility model are as follows: The magnet assembly structure designed for pod-based electronic cigarettes allows for magnetic attraction between the magnet at the bottom of the cartridge and the magnet at the bottom of the insertion cavity when the cartridge is inserted into the main unit of the electronic cigarette. This facilitates easy connection and insertion / removal. The internal structure design of the first and second grooves for mounting magnets at the bottom of the cartridge and the insertion cavity involves multiple raised ribs perpendicular to the bottom of the first and second grooves on their inner walls. A chamfered end of each rib near the opening of the first groove guides the insertion of the first magnet. Firstly, the raised ribs are tightly fitted with the first or second magnet using an interference fit. Then, a gap is formed between the inner wall of the first or second groove outside the raised ribs and the outer wall of the first or second magnet. Adhesive is filled into this gap to further bond the outer walls of the first and second magnets. Furthermore, adhesive reservoirs are provided at the bottom of the first and second grooves. When the first and second magnets are respectively embedded in the first and second grooves, the protrusions act as retaining blocks, preventing the adhesive in the reservoirs from being completely squeezed to the sidewalls, thus ensuring that the bottoms of the first and second magnets are adhered. This provides adhesive bonding around the magnets and to the bottom, achieving a secure and reliable magnet assembly, preventing the magnets from being pulled out or falling off during product use. Attached Figure Description

[0012] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this disclosure together with the specification and serve to explain the principles of this disclosure.

[0013] Figure 1 This is a schematic diagram of the first groove structure at the bottom of the cigarette cartridge according to an embodiment of the present invention.

[0014] Figure 2 This is a cross-sectional view of the bottom cover structure of the present invention, which has a first groove and a first magnet.

[0015] Figure 3 This is a bottom view of the cigarette cartridge of this utility model.

[0016] Figure 4 for Figure 3 Sectional view of AA.

[0017] Figure 5 This is a three-dimensional schematic diagram of the bottom structure of the bottom cover of this utility model.

[0018] Figure 6 This is a schematic diagram of the structure of the inner support of the main unit of the cigarette bar, which has a second groove at the upper end.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Bottom cover; 10. First groove; 101. Raised rib; 1011. Beveled angle; 1012. Gap; 102. Boss; 1021. Glue storage tank; 2. First magnet; 3. Cigarette rod shell; 4. Inner support; 401. Second groove. Detailed Implementation

[0021] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this disclosure.

[0022] Please refer to Figures 1 to 6 This is a specific embodiment of the magnet assembly structure of a pod-type electronic cigarette disclosed in this solution. In this embodiment, the pod-type electronic cigarette includes two parts: a cartridge and a main unit. The main unit is provided with an insertion cavity for inserting the cartridge. The bottom of the cartridge is provided with a first groove 10, in which a first magnet 2 is embedded. The bottom of the insertion cavity is provided with a second groove 401, in which a second magnet is embedded. When the cartridge is inserted into the insertion cavity, the first magnet 2 and the second magnet are magnetically attracted to each other. The first groove 10 and the second groove 401 have the same structure. The side wall of the first groove 10 is uniformly provided with a plurality of raised ribs 101 perpendicular to the bottom of the groove. The end of the raised rib 101 near the groove opening of the first groove 10 is provided with a chamfered part 1011. The chamfered part 1011 of the raised rib 101 is used for assembly guidance when the first magnet 2 is inserted. The first magnet 2 is interference-fitted with the raised rib 101. A gap 1012 is formed between the side wall of the first magnet 2 and the side wall of the first groove 10. The gap 1012 is filled with glue, and the first magnet 2 is firmly bonded to the first groove 10.

[0023] Please refer to Figure 1 , Figure 5In a preferred embodiment, the bottom of the first groove 10 is provided with a plurality of protrusions 102 evenly distributed along its edge. The outer sides of the plurality of protrusions 102 and the bottom of the groove form a glue storage groove 1021, which is filled with glue. When the first magnet 2 is embedded in the first groove 10, the bottom of the first magnet 2 is bonded to the glue in the glue storage groove 1021. The protruding ribs 101 achieve glue bonding between the four sides of the first magnet 2 and the sidewalls of the first groove 10, and the bottom of the first magnet 2 is also bonded to the bottom of the first magnet 2 through the glue storage groove 1021. In actual operation, the first groove 10 is first quantitatively dispensed with glue, that is, glue is injected quantitatively by an automated dispensing device. Then, when the first magnet 2 is inserted into the first groove 10, the glue is squeezed into the gap 1012 formed between the side wall of the first magnet 2 and the side wall of the first groove 10 by the squeezing of the first magnet 2. A portion of the glue is left in the glue storage tank 1021 and bonded to the bottom of the first magnet 2.

[0024] Furthermore, the first groove 10 can be any shape with a cross-section of circular, square, rectangular, or elongated elliptical, and the shape of the first magnet 2 is adapted to the shape of the first groove 10. In this embodiment, the first groove 10 and the second groove 401 are elongated elliptical groove structures.

[0025] Please refer to Figure 4 The cartridge includes a cartridge shell, an atomizing core, an atomizing core oil seal silicone part, and a bottom cover 1. The bottom cover 1 is made of plastic material, and the first groove 10 is located at the bottom of the bottom cover 1 and is integrally injection molded with the bottom cover 1.

[0026] Please refer to Figure 6. The main unit of the cigarette device includes a cigarette device shell 3 and an inner bracket 4. A battery, a control board, and a microphone sensor are disposed in the inner bracket 4. The inner bracket 4 is sleeved inside the cigarette device shell 3. The upper end of the inner bracket 4 is the bottom of the insertion cavity. The inner bracket 4 is made of plastic material. The second groove 401 is disposed at the upper end of the inner bracket 4 and is integrally injection molded with the inner bracket 4.

[0027] This solution aims to propose a new design for the magnet assembly structure on the cartridge and the main unit of the e-cigarette. The specific structure of the atomizer core and the silicone oil seal of the atomizer core in the cartridge, as well as the specific assembly structure of the control board and battery of the main unit of the e-cigarette, will not be described in detail here.

[0028] Preferably, the adhesive is any one of epoxy resin AB glue, acrylic structural glue, and UV glue.

[0029] Preferably, both the first magnet 2 and the second magnet are neodymium iron boron magnets, and both the first magnet 2 and the second magnet have a nickel-copper-nickel triple-layer plating or a zinc plating, to prevent the e-liquid and condensate produced by the electronic cigarette during use from corroding the magnets.

[0030] The magnet assembly structure designed in this scheme achieves a tight, interference fit between the magnet and the groove, while maintaining adhesive bonding around the magnet and at the bottom, resulting in a secure and reliable magnet assembly. The specific principle is as follows: the protruding rib 101 is tightly fitted with the first magnet 2 or the second magnet. A gap 1012 is formed between the inner wall of the first groove 10 or the inner wall of the second groove 401 on the outer side of the protruding rib 101 and the outer wall of the first magnet 2 or the second magnet. Adhesive is filled into the gap 1012, further bonding the outer walls of the first magnet 2 and the second magnet. An adhesive reservoir 1021 is provided at the bottom of the first groove 10 and the second groove 401. When the first magnet 2 and the second magnet are respectively embedded in the first groove 10 and the second groove 401, the protruding rib 102 acts as a retaining and limiting element, preventing the adhesive in the adhesive reservoir 1021 at the bottom of the first groove 10 and the second groove 401 from being completely squeezed to the sidewalls, thus maintaining adhesive bonding at the bottom of the first magnet 2 and the second magnet.

[0031] In this scheme, the internal design structure of the second groove 401 is the same as that of the first groove 10, so it will not be described in detail here. The first magnet 2 and the second magnet are the same magnets, but their magnetic poles are arranged opposite each other to achieve magnetic attraction when docking.

[0032] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A magnetic assembly structure for a pod-type electronic cigarette, the pod-type electronic cigarette comprising two parts: a cartridge and a main unit, the main unit having an insertion cavity for inserting the cartridge, the cartridge having a first groove at its bottom for embedding a first magnet, the insertion cavity having a second groove at its bottom for embedding a second magnet, wherein when the cartridge is inserted into the insertion cavity, the first magnet and the second magnet are magnetically attracted to each other, characterized in that... The first groove and the second groove have the same structure. The sidewall of the first groove is uniformly provided with multiple raised ribs perpendicular to the bottom of the first groove. The end of the raised rib near the opening of the first groove is provided with a chamfer. The chamfer of the raised rib is used for assembly guidance when the first magnet is inserted. The first magnet is interference-fitted with the raised rib. A gap is formed between the sidewall of the first magnet and the sidewall of the first groove. The gap is filled with glue, and the first magnet is firmly bonded to the first groove.

2. The magnet assembly structure of the refillable electronic cigarette according to claim 1, characterized in that, The first groove has a plurality of protrusions evenly provided along the edge of its bottom. The outer sides of the plurality of protrusions and the bottom of the groove form a glue storage tank. The glue storage tank is filled with glue. When the first magnet is embedded in the first groove, the bottom of the first magnet is bonded to the glue in the glue storage tank.

3. The magnet assembly structure of the refillable electronic cigarette according to claim 1, characterized in that, The first groove has a cross-sectional shape that is either circular, square, rectangular, or elongated elliptical, and the shape of the first magnet is adapted to the shape of the first groove.

4. The magnet assembly structure of the refillable electronic cigarette according to claim 1, characterized in that, The cartridge includes a cartridge shell, an atomizing core, an atomizing core oil seal silicone component, and a bottom cover. The bottom cover is made of plastic, and the first groove is located at the bottom of the bottom cover and is integrally injection molded with the bottom cover.

5. The magnet assembly structure of the refillable electronic cigarette according to claim 1, characterized in that, The main unit of the cigarette device includes a cigarette device shell and an inner bracket, a battery, a control board and a microphone sensor disposed in the inner bracket. The inner bracket is sleeved inside the cigarette device shell, and the upper end of the inner bracket is the bottom of the insertion cavity. The inner bracket is made of plastic material, and the second groove is disposed at the upper end of the inner bracket and is integrally injection molded with the inner bracket.

6. The magnet assembly structure of the refillable electronic cigarette according to claim 1, characterized in that, The adhesive is any one of epoxy resin AB glue, acrylic structural glue, or UV glue.

7. The magnet assembly structure of the refillable electronic cigarette according to claim 1, characterized in that, Both the first magnet and the second magnet are neodymium iron boron magnets, and both the first magnet and the second magnet have a nickel-copper-nickel three-layer plating or a zinc plating.

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