Cartridge Position Detection Circuit for E-Cigarette Heating Lockout
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Solution Overview
Problem
Existing electronic cigarettes may continue to function even when the cartridge is incorrectly positioned, leading to energy wastage and potential safety hazards, which compromises user experience.
Innovation Solution
A position detection circuit is introduced that includes switch modules and ground resistors to detect the correct placement of the cartridge, sending state signals to the processing circuit to control the heating member's operation, ensuring it only functions when the cartridge is correctly positioned.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic cigarette main body continues to function when the cartridge is incorrectly positioned, then the device maintains operational availability, but energy is wasted and safety hazards occur
Solution Approach 1:
The patent implements a position detection circuit that performs preliminary detection of cartridge placement status before enabling the heating element. The detection circuit checks whether the cartridge is correctly positioned on the main body, and only after successful detection does it allow the heating element to operate. This preliminary action prevents energy waste and safety hazards by ensuring proper positioning before operation begins.
2Loss of energy
If the position detection circuit is added to detect cartridge placement, then energy waste and safety hazards are prevented, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical positioning detection mechanisms with a simplified electrical detection circuit. The position detection circuit uses electrical contacts or conductive elements that automatically detect cartridge placement through electrical connection status, substituting what would traditionally require complex mechanical sensors or switches. This electrical approach achieves reliable position detection while minimizing circuit complexity.
Data Source
AI summary
The application provides a position detection circuit, which is connected to a processing circuit (200), and includes a first switch module (110) and a first ground resistor (R1); the first switch module (110) includes a first end, a second end and a first switch (T1), the first switch module (110) is used for controlling on/off state of the first switch (T1) according to whether the placement member is placed at a first placement position, the first end of the first switch module (110) receives a system voltage (Vcc), and the second end outputs a first state signal or a second state signal to the processing circuit (200) according to the on/off state of the first switch (T1); and the first grounding resistor (R1) has a first end connected to the second end of the first switch module (110), and a second end grounded. Also provided is an electronic cigarette.