Anti-mis-touch electronic cigarette touch control switch
By combining capacitive touch sensing electrodes and micro-pressure sensors in electronic cigarettes, the problem of accidental touches in existing electronic cigarette switches has been solved, achieving the effect of preventing accidental touches and improving user experience and product reliability.
Patent Information
- Application Number
- CN202522564437.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-03
AI Technical Summary
Existing touch-sensitive electronic cigarette switches lack effective verification, are prone to accidental activation due to accidental touches, consume excessive power, and pose safety hazards, affecting user experience and reliability.
It employs a dual detection logic combining capacitive touch sensing electrodes and micro-pressure sensors, ensuring that the switch action is triggered only when there is valid user operation through dual verification of touch action and touch pressure, thus preventing accidental touches.
It effectively prevents accidental power-on and battery waste caused by accidental touch of electronic cigarettes, improves user experience and product reliability, and maintains ease of operation and safety.
Smart Images
Figure CN224936607U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic cigarette technology, and in particular to an electronic cigarette touch control switch that prevents accidental touch. Background Technology
[0002] Electronic cigarettes are electronic products that mimic traditional cigarettes. Although they do not contain tar, they still contain many other carcinogens and have the same appearance, smoke, taste, and feel as traditional cigarettes.
[0003] Current touch-sensitive e-cigarettes rely solely on a single touch sensor signal for activation, lacking secondary verification of the touch action's validity. This makes them prone to accidental activation in unintended scenarios such as accidental touches in pockets, scratches from handheld devices, or contact with other objects, leading to unintended power-on or malfunctions. This not only causes unnecessary battery drain and shortens standby time but also poses safety hazards such as burns due to accidental atomizer heating. Furthermore, the single-touch trigger design struggles to balance ease of operation with accidental activation prevention, severely impacting user experience and product reliability. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an electronic cigarette touch control switch that prevents accidental touches. This solves the technical problems of existing touch electronic cigarette switches that rely solely on a single touch signal, lack effective verification, are prone to accidental activation, consume excessive power, pose safety hazards, and affect user experience and reliability.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An anti-accidental touch control switch for an electronic cigarette includes an electronic cigarette casing. Inside the casing are a main control module, a pressure detection module, and a touch sensing module. The main control module is electrically connected to the touch sensing module and the pressure detection module to receive touch and pressure sensing signals. The touch sensing module includes a capacitive touch sensing electrode disposed inside the electronic cigarette casing to detect the user's finger touch and generate a touch sensing signal. The pressure detection module includes a micro-pressure sensor disposed close to the inner wall of the electronic cigarette casing below the capacitive touch sensing electrode to detect the pressure applied to the touch area when the user touches it and generate a pressure sensing signal. This dual detection of touch and pressure avoids the problem of accidental touches caused by a single touch, prevents accidental power-on, reduces power consumption and safety hazards, and improves user experience and reliability.
[0007] Preferably, the capacitive touch sensing electrode is made of ITO conductive film. The ITO conductive film electrode has stable conductivity and is transparent, which is compatible with the aesthetics of the shell, ensures sensitive and accurate touch sensing, and improves the reliability of detection.
[0008] Preferably, the micro-pressure sensor is a piezoresistive micro-pressure sensor. Piezoresistive micro-pressure sensors have high accuracy and fast response, can accurately detect touch pressure, ensure reliable pressure signals, and improve the accuracy of effective operation judgment.
[0009] Preferably, when the main control module receives both a touch sensing signal and a pressure sensing signal and the pressure value reaches a preset threshold, it executes the switch control action of the electronic cigarette, clearly defining the dual signal and pressure threshold triggering logic, responding only to valid operations, further avoiding accidental touches, and balancing operational convenience and usage safety.
[0010] Preferably, the touch sensing module, pressure detection module and main control module are electrically connected via a flexible circuit board. The flexible circuit board connects each module, adapts to the narrow space inside the electronic cigarette, provides a stable connection and flexible wiring, and improves installation convenience and structural stability.
[0011] Preferably, the inner side of the electronic cigarette shell is provided with mounting slots for fixing the touch sensing module, pressure detection module and main control module. The touch sensing module, pressure detection module and main control module are respectively installed in the corresponding mounting slots. The mounting slots fix each module, prevent shaking and displacement, ensure stable detection position, reduce signal errors caused by loosening, and improve product durability.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This device effectively prevents accidental power-on and power-off of e-cigarettes due to unintentional touches (such as when held or placed in a pocket) through dual detection logic of touch action and touch pressure. It retains the aesthetics and ease of operation of touch switches while avoiding battery waste and safety hazards, significantly improving user experience and product reliability. Attached Figure Description
[0014] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Legend: 1. Electronic cigarette casing; 2. Main control module; 3. Pressure detection module; 4. Touch sensing module; 5. Capacitive touch sensing electrode. Detailed Implementation
[0017] This application provides an electronic cigarette touch control switch that prevents accidental touches. It effectively solves the problem that existing touch electronic cigarette switches rely on a single touch signal, lack validity verification, are prone to accidental activation, consume power, and pose safety hazards, affecting user experience and reliability. This device can effectively prevent accidental activation and shutdown of electronic cigarettes due to accidental touches through dual detection logic of touch action and touch pressure. It retains the aesthetics and ease of operation of touch switches while avoiding battery waste and safety hazards, significantly improving user experience and product reliability.
[0018] Example
[0019] like Figure 1 As shown, the technical solution in this application embodiment effectively solves the technical problems of existing touch electronic cigarette switches that rely solely on a single touch signal, lack effectiveness verification, are prone to accidental activation due to accidental touches, consume excessive power, pose safety hazards, and affect user experience and reliability. The overall concept is as follows: An anti-accidental touch electronic cigarette touch control switch, wherein the electronic cigarette shell 1 is a cylindrical or flat shell, and a touch sensing module 4 and a pressure detection module 3 are fixed on its inner side corresponding to the user touch area. The main control module 2 is fixed in the internal cavity of the shell 1. The capacitive touch sensing electrode 5 of the touch sensing module 4 is a sheet structure with an area of 8-15mm², which is attached to the inner touch area of the shell 1 with medical-grade double-sided adhesive. The wall spacing is ≤0.2mm. The micro-pressure sensor of the pressure detection module 3 is a circular chip with a diameter of 3-5mm. It is attached to the inner wall of the outer shell 1 directly below the electrode 5 through a silicone pad, with a distance of 0.1-0.3mm between it and the electrode 5. The main control module 2 is electrically connected to the signal output terminals of the touch sensing module 4 and the pressure detection module 3 respectively through wires. This structure ensures that touch sensing and pressure detection are located in the same user touch area, ensuring that the touch action and pressure signal source are consistent. The main control module 2 receives dual signals synchronously, providing a hardware foundation for touch + pressure dual verification. Structurally, it avoids false triggering caused by environmental interference due to a single touch signal, solving the false touch problem of existing products.
[0020] The capacitive touch sensing electrode 5 uses an ITO conductive film with a thickness of 0.05-0.1mm, formed by magnetron sputtering, with a light transmittance of ≥85%. The electrode edge is encapsulated with insulating ink to prevent short circuits with the outer shell 1 or other components, and is connected to the signal processing circuit of the touch sensing module 4 through conductive silver paste. The high light transmittance of the ITO conductive film is suitable for transparent or light-colored outer shell 1 without affecting the product appearance. The low resistance characteristics ensure stable transmission of capacitance change signals during touch. Combined with the edge insulation design, signal interference is avoided, which improves the touch sensing sensitivity by more than 30%, ensuring that even a slight touch from the user can be detected.
[0021] The micro-pressure sensor is a piezoresistive MEMS chip with a range of 0-5N, a resolution of 0.01N, and a response time of ≤10ms. The pressure sensing surface of the sensor faces the inner wall of the housing 1, and the back is fixed to a pre-set raised platform on the inner side of the housing 1 with epoxy resin. This ensures that only pressure perpendicular to the surface of the housing is sensed when force is applied, eliminating interference from lateral forces. The high precision and fast response of the piezoresistive structure can accurately identify the pressure applied by the user's touch, while the pressure of false touches is mostly <0.3N. Therefore, it can effectively distinguish between valid operations and false touches. The directional force design avoids false triggering by lateral forces when holding the device, further improving the accuracy of pressure detection.
[0022] The MCU of main control module 2 has a built-in AD conversion module that samples the touch sensing signal and the pressure sensing signal respectively. The sampling frequency is 100Hz. The preset pressure threshold is set by the program. When the touch signal is detected at the same time and the pressure value of the corresponding pressure signal is greater than or equal to the threshold, the MCU outputs a high-level control signal to the electronic cigarette driving circuit. The clear dual signal and threshold triggering logic defines the effective operation at the software level, ensuring that the switch action is triggered only when the user consciously touches and applies sufficient pressure. The adjustable threshold feature adapts to the operating habits of different users, avoiding accidental touches and ensuring convenient operation.
[0023] The connection between the touch sensing module 4, the pressure detection module 3, and the main control module 2 is a 0.1-0.2mm thick polyimide flexible circuit board (FPC). The FPC is 2-3mm wide and covered with an insulating layer. The connection between the module and the FPC is achieved using a thermoforming process. The FPC is bent along the arc of the inner wall of the outer shell 1 to avoid interference with internal components such as the battery. The flexible circuit board's bendability is adapted to the narrow space inside the electronic cigarette, solving the problems of easy breakage of rigid wires and difficult wiring. The thermoforming connection ensures stable signal transmission impedance, and the insulating layer protects against short circuits, improving the reliability of signal transmission between modules and the durability of the product.
[0024] The inner side of the electronic cigarette shell 1 has mounting slots corresponding to the positions of each module. The mounting slot of the touch sensing module 4 is a rectangular groove that matches the electrode 5. The mounting slot of the pressure detection module 3 is a circular groove. The mounting slot of the main control module 2 is a square groove that matches the module shell. Each module is embedded into the slot by interference fit. The slot wall is coated with damping glue for fixation. The precise dimensions of the mounting slot and the positioning post ensure that the installation deviation of each module is ≤0.2mm, avoiding module displacement caused by vibration or drops. The damping glue fixation not only prevents loosening but also buffers external impact, ensuring that the touch electrode 5 and the pressure sensor are always in the optimal detection position, reducing signal errors caused by positional deviation, and improving the structural stability of the product.
[0025] To address the problems existing in the prior art, this utility model provides an electronic cigarette touch control switch that prevents accidental touch. This device can effectively prevent the electronic cigarette from being accidentally turned on or off due to accidental touch through dual detection logic of touch action and touch pressure. It retains the aesthetics and ease of operation of the touch switch, while avoiding battery waste and safety hazards, significantly improving user experience and product reliability.
[0026] Working principle:
[0027] The first step is that when a user touches a designated area of the electronic cigarette casing with their finger, the capacitive touch sensing electrode (part of the touch sensing module) will detect the change in its own capacitance value (the finger, as a conductor, changes the capacitance environment of the electrode). Based on this change, the touch sensing module generates a touch sensing signal and transmits it to the main control module.
[0028] The second step involves the micro pressure sensor (part of the pressure detection module) located directly below the capacitive touch sensing electrode sensing area while the user is touching the area. The sensor converts the pressure into a change in electrical signal, which in turn generates a pressure sensing signal, which is then transmitted to the main control module.
[0029] Third, the main control module simultaneously receives touch sensing signals from the touch sensing module and pressure sensing signals from the pressure detection module.
[0030] It performs a logical judgment on these two signals: only when a touch action exists and the touch pressure reaches a preset threshold will it be considered a valid user operation; if there is only a touch (such as a pocket touch or an object scratch) but the pressure is insufficient, it will be considered a mis-touch and will not trigger subsequent actions.
[0031] Fourth, when the main control module determines that the operation is a valid user operation, it will output control commands to drive the electronic cigarette to perform actions such as powering on, powering off, or switching functions; if it is determined to be a false touch, it will not output any control commands, thereby realizing the core function of preventing false touch.
[0032] By employing a dual detection logic of touch action and touch pressure, this switch retains the convenience of touch operation while effectively preventing accidental activation of e-cigarettes, battery waste, or safety hazards caused by accidental touch.
[0033] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A touch control switch for an electronic cigarette that prevents accidental touches, comprising an electronic cigarette casing (1), characterized in that, The electronic cigarette casing (1) is equipped with a main control module (2), a pressure detection module (3) and a touch sensing module (4). The main control module (2) is electrically connected to the touch sensing module (4) and the pressure detection module (3) to receive touch sensing signals and pressure sensing signals; The touch sensing module (4) includes a capacitive touch sensing electrode (5) disposed inside the electronic cigarette shell (1) for detecting the user's finger touch action and generating a touch sensing signal; The pressure detection module (3) includes a micro pressure sensor, which is set close to the inner wall of the electronic cigarette shell (1) below the capacitive touch sensing electrode (5) to detect the pressure applied to the touch area when the user touches it and generate a pressure sensing signal.
2. The electronic cigarette touch control switch for preventing accidental touches as described in claim 1, characterized in that, The capacitive touch sensing electrode (5) is made of ITO conductive film.
3. The electronic cigarette touch control switch for preventing accidental touches as described in claim 1, characterized in that, The micro-pressure sensor is a piezoresistive micro-pressure sensor.
4. The electronic cigarette touch control switch for preventing accidental touches as described in claim 1, characterized in that, When the main control module (2) receives both touch sensing signal and pressure sensing signal and the pressure value reaches a preset threshold, it executes the switch control action of the electronic cigarette.
5. The electronic cigarette touch control switch for preventing accidental touches as described in claim 1, characterized in that, The touch sensing module (4), pressure detection module (3), and main control module (2) are electrically connected via a flexible circuit board.
6. The electronic cigarette touch control switch for preventing accidental touches as described in claim 1, characterized in that, The inner side of the electronic cigarette casing (1) is provided with mounting slots for fixing the touch sensing module (4), pressure detection module (3) and main control module (2), and the touch sensing module (4), pressure detection module (3) and main control module (2) are respectively installed in the corresponding mounting slots.