An electronic cigarette

By optimizing the layout of the plastic inner shell and main control board in the electronic cigarette, and placing the antenna unit in the plastic outer shell area, and using a combination of power supply traces and ground traces, the problem of antenna interference from the metal shell and motor was solved, achieving high-performance antenna performance and compact structure.

CN224386765UActive Publication Date: 2026-06-23SHENZHEN SUNWAY COMM

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SUNWAY COMM
Filing Date
2025-05-19
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The miniaturization design of e-cigarettes makes the antenna susceptible to interference from the metal casing and motor, resulting in reduced radiation efficiency. Optimization of the internal structure is needed to improve antenna performance.

Method used

The layout design of the plastic inner shell and main control board is adopted, and the antenna unit is placed in the plastic outer shell area. A combination of power supply and ground supply lines is used to avoid the influence of the metal shell and motor, and it is electrically connected to the main control board through RF coaxial cable.

Benefits of technology

This effectively reduces the shielding effect of the metal casing on the antenna, improves antenna performance, and maintains the compact structure of the electronic cigarette.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224386765U_ABST
    Figure CN224386765U_ABST
Patent Text Reader

Abstract

The utility model discloses an electronic cigarette, including metal shell, plastic shell, main control board, plastic inner shell, motor and antenna unit, metal shell links to each other with plastic shell and forms the accommodation space, plastic inner shell and main control board all are located in the accommodation space, and antenna unit is located in the region of plastic inner shell corresponding to plastic shell, and antenna unit and main control board electric connection, and antenna unit includes one feed line and two ground feed lines, and feed line is located between two ground feed lines, and motor is located on main control board and is set up corresponding to the gap between feed line and ground feed line.
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Description

Technical Field

[0001] This utility model relates to electronic cigarettes. Background Technology

[0002] E-cigarettes are electronic devices that mimic traditional cigarettes. They work by heating and atomizing a nicotine-containing liquid to produce vapor that can be inhaled, thus simulating the experience of smoking. E-cigarettes were originally designed to provide smokers with a safer alternative to traditional cigarettes, while also helping those trying to quit to reduce their nicotine dependence.

[0003] Some e-cigarettes on the market have Bluetooth communication modules, allowing users to monitor the smoking time and internal liquid levels in real time via mobile phones and other devices. However, the miniaturization of e-cigarettes has resulted in less and less space for antenna installation, making the antenna susceptible to interference from the e-cigarette's metal casing, motor, and other components, leading to reduced antenna radiation efficiency. Therefore, it is necessary to optimize the layout of the internal structure of e-cigarettes to improve antenna performance. Utility Model Content

[0004] The technical problem solved by this utility model is to provide an electronic cigarette with excellent antenna performance.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an electronic cigarette, comprising a metal shell, a plastic shell, a main control board, a plastic inner shell, a motor, and an antenna unit. The metal shell and the plastic shell are connected to form an accommodating space. The plastic inner shell and the main control board are both disposed within the accommodating space. The antenna unit is disposed in the area of ​​the plastic inner shell corresponding to the plastic shell. The antenna unit is electrically connected to the main control board. The antenna unit includes one power feed line and two ground feed lines. The power feed line is located between the two ground feed lines. The motor is disposed on the main control board and is positioned corresponding to the gap between the power feed line and the ground feed line.

[0006] In one embodiment, the antenna element is an FPC antenna, and the antenna element is glued to the plastic inner shell.

[0007] In one embodiment, the main control board is fixedly connected to the plastic inner shell.

[0008] In one embodiment, the power supply line includes a first branch, a second branch, a third branch, and a fourth branch connected in sequence. The first branch and the fourth branch are arranged in parallel, the third branch is perpendicular to the fourth branch, the second branch is arranged at an angle, and the fourth branch is located near the bottom of the plastic shell.

[0009] In one embodiment, one of the ground feed lines includes a fifth, a sixth, and a seventh branch connected in sequence. The fifth branch is located above the first branch, and the seventh branch is arranged parallel to the third branch and located to the left of the third branch. The other ground feed line includes an eighth branch, which is located to the right of the ground feed line. The end of the fifth branch away from the sixth branch is connected to the eighth branch by a welded branch, which is located near the end of the first branch away from the second branch.

[0010] In one embodiment, another of the feed lines further includes a ninth stub, one end of which is perpendicularly connected to the eighth stub, and the other end of which extends toward the fourth stub.

[0011] In one embodiment, in the height direction, there is a gap between the top edge of the fifth branch and the bottom edge of the metal casing.

[0012] In one embodiment, the main control board is provided with an electrical connector, and the plastic housing has a window for exposing the electrical connector. The electrical connector is provided corresponding to the gap between the power supply line and the ground line.

[0013] In one embodiment, a battery electrically connected to the main control board is also included, the battery being located within a metal casing.

[0014] In one embodiment, the window is located at the bottom end of the plastic housing.

[0015] The beneficial effects of this invention are as follows: the internal components of this electronic cigarette are rationally arranged, and the antenna unit is set in the plastic shell area, which effectively reduces the shielding effect of the metal shell on the antenna unit. The grounding wiring and power feeding wiring are adopted, which helps to further reduce the impact of the metal shell on the performance of the antenna unit. In addition, the wiring of the antenna unit avoids the motor with metal parts, which can improve the impact of the motor on the performance of the antenna unit. This electronic cigarette has high antenna performance while achieving a compact structure. Attached Figure Description

[0016] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 An exploded view of part of the structure of an electronic cigarette;

[0018] Figure 2 In order to be in Figure 1 A front view of the structure shown, with the plastic outer shell hidden.

[0019] Figure 3 In order to be in Figure 2 The front view of the structure shown, with the plastic inner shell hidden.

[0020] Explanation of icon numbers:

[0021] 1. Metal casing;

[0022] 2. Plastic casing; 21. Window;

[0023] 3. Main control board; 31. Electrical connectors;

[0024] 4. Plastic inner shell;

[0025] 5. Motor;

[0026] 6. Antenna element; 61. Power supply trace; 611. First stub; 612. Second stub; 613. Third stub; 614. Fourth stub; 62. Grounding trace; 621. Fifth stub; 622. Sixth stub; 623. Seventh stub; 624. Eighth stub; 625. Ninth stub; 626. Welding stub;

[0027] 7. Radio frequency coaxial cable;

[0028] 8. Gap;

[0029] 9. Storage battery. Detailed Implementation

[0030] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0034] Furthermore, if the meaning of "and / or" appears throughout the text, it refers to three parallel solutions. For example, "and / or" includes solution 1, solution 2, and solution 3, which simultaneously satisfy the above conditions. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] Example 1

[0037] Please refer to Figures 1 to 3 One embodiment of this utility model is: an electronic cigarette, including a metal shell 1, a plastic shell 2, a main control board 3, a plastic inner shell 4, a motor 5, and an antenna unit 6. The metal shell 1 and the plastic shell 2 are connected to form an accommodating space. The plastic shell 2 is located at one end of the metal shell 1. The plastic inner shell 4 and the main control board 3 are both disposed in the accommodating space. Preferably, the main control board 3 is fixedly connected to the plastic inner shell 4 to ensure the stability of the installation of the main control board 3. The main control board 3 can be a PCBA board, etc.

[0038] The antenna unit 6 is disposed in the area of ​​the inner plastic shell 4 corresponding to the outer plastic shell 2. Specifically, the antenna unit 6 is disposed on the outer plastic shell 2 and is transparent along the thickness direction of the electronic cigarette. The antenna unit 6 has no overlapping area with the metal shell 1.

[0039] The antenna unit 6 is electrically connected to the main control board 3. The antenna unit 6 includes a power feed line 61 and two ground feed lines 62. The power feed line 61 is located between the two ground feed lines 62. The motor 5 is mounted on the main control board 3 and is positioned corresponding to the gap between the power feed line 61 and the ground feed line 62.

[0040] In this embodiment, the antenna unit 6 is an FPC antenna, and the antenna unit 6 is glued to the plastic inner shell 4. Optionally, the FPC antenna is glued to the plastic inner shell 4 with 3M adhesive.

[0041] Please combine Figure 3 The power supply trace 61 includes a first branch 611, a second branch 612, a third branch 613, and a fourth branch 614 connected in sequence. The first branch 611 and the fourth branch 614 are arranged in parallel, the third branch 613 is perpendicular to the fourth branch 614, the second branch 612 is arranged at an angle, and the fourth branch 614 is arranged close to the bottom of the plastic shell 2. This can reduce the impact of the metal shell 1 on the performance of the antenna element 6 to a greater extent and ensure that the antenna element 6 can achieve high performance.

[0042] One of the ground feed lines 62 includes a fifth branch 621, a sixth branch 622, and a seventh branch 623 connected in sequence. The fifth branch 621 is located above the first branch 611, and the seventh branch 623 is arranged parallel to the third branch 613 and located to the left of the third branch 613. The other ground feed line 62 includes an eighth branch 624, which is located to the right of the power feed line 61. The end of the fifth branch 621 away from the sixth branch 622 is connected to the eighth branch 624 by a welded branch 626. The welded branch 626 is located near the first branch 611 and away from the second branch 612. Thus, the power feed line 61 is surrounded by two ground feed lines 62, thereby effectively reducing the adverse effects of the metal casing 1 on the power feed line 61. The motor 5 is positioned corresponding to the gap between the second branch 612 / third branch 613 and the eighth branch 624.

[0043] In this embodiment, another feed line 62 further includes a ninth branch 625, one end of which is perpendicularly connected to the eighth branch 624, and the other end of which extends toward the fourth branch 614.

[0044] It is easy to understand that the antenna unit 6 is electrically connected to the main control board 3 via the radio frequency coaxial cable 7. The core wire of the radio frequency coaxial cable 7 is welded to the end of the first branch 611 away from the second branch 612 and is connected. The network cable of the radio frequency coaxial cable 7 is welded to the welded branch 626.

[0045] Because a view is taken along the thickness direction of the electronic cigarette, the antenna element 6 and the metal casing 1 have no overlapping area. Therefore, in the height direction of the electronic cigarette ( Figure 2 (From the perspective shown), there is a gap 8 between the top edge of the fifth branch 621 and the bottom edge of the metal shell 1. The height of the gap 8 can be selected and set according to actual needs. In this embodiment, the height of the gap 8 is 1mm, which can take into account both the compactness of the electronic cigarette structure and the performance of the antenna unit 6.

[0046] The main control board 3 is provided with an electrical connector 31, and the plastic housing 2 has a window 21 for exposing the electrical connector 31. Preferably, the window 21 is located at the bottom end of the plastic housing 2, and the electrical connector 31 is positioned corresponding to the gap between the power supply line 61 and the ground line 62. In this embodiment, the electrical connector 31 is positioned corresponding to the gap between the third branch 613 and the seventh branch 623.

[0047] The electronic cigarette also includes a battery 9 electrically connected to the main control board 3. The battery 9 is located inside the metal casing 1 and is far away from the antenna unit 6, which can greatly reduce the influence of the battery 9 on the antenna unit 6. It is easy to understand that the electrical connector 31 is at least a charging connector for charging the battery 9, which can be a USB connector, a Type-C connector, etc.

[0048] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An electronic cigarette, characterized in that: The device includes a metal outer shell, a plastic outer shell, a main control board, a plastic inner shell, a motor, and an antenna unit. The metal outer shell and the plastic outer shell are connected to form a receiving space. The plastic inner shell and the main control board are both disposed within the receiving space. The antenna unit is disposed in the area of ​​the plastic inner shell corresponding to the plastic outer shell. The antenna unit is electrically connected to the main control board. The antenna unit includes one feed line and two ground lines. The feed line is located between the two ground lines. The motor is disposed on the main control board and is positioned corresponding to the gap between the feed line and the ground line.

2. The electronic cigarette according to claim 1, characterized in that: The antenna unit is an FPC antenna, and the antenna unit is glued to the plastic inner shell.

3. The electronic cigarette according to claim 1, characterized in that: The main control board is fixedly connected to the plastic inner shell.

4. The electronic cigarette according to claim 1, characterized in that: The power supply line includes a first branch, a second branch, a third branch, and a fourth branch connected in sequence. The first branch and the fourth branch are arranged in parallel, the third branch is perpendicular to the fourth branch, the second branch is arranged at an angle, and the fourth branch is located near the bottom of the plastic shell.

5. The electronic cigarette according to claim 4, characterized in that: One of the grounding traces includes a fifth, a sixth, and a seventh stub connected in sequence. The fifth stub is located above the first stub, and the seventh stub is arranged parallel to the third stub and located to the left of the third stub. The other grounding trace includes an eighth stub, which is located to the right of the grounding trace. The end of the fifth stub away from the sixth stub is connected to the eighth stub via a welded stub, which is located near the end of the first stub away from the second stub.

6. The electronic cigarette according to claim 5, characterized in that: Another of the aforementioned feed lines also includes a ninth branch, one end of which is perpendicularly connected to the eighth branch, and the other end of which extends toward the fourth branch.

7. The electronic cigarette according to claim 5, characterized in that: In the height direction, there is a gap between the top edge of the fifth branch and the bottom edge of the metal shell.

8. The electronic cigarette according to claim 1, characterized in that: The main control board is equipped with an electrical connector, and the plastic housing has a window for exposing the electrical connector. The electrical connector is set in the gap between the power supply line and the ground line.

9. The electronic cigarette according to claim 8, characterized in that: It also includes a battery electrically connected to the main control board, the battery being located inside a metal casing.

10. The electronic cigarette according to claim 8, characterized in that: The window is located at the bottom of the plastic casing.