Anti-dry burning device and anti-dry burning control method of electronic cigarettes

Abstract

The present invention relates to an anti-dry burning device and anti-dry burning control method of electronic cigarettes. The anti-dry burning device of the electronic cigarettes comprises a microcontroller, a buck-boost bridge circuit, a mistorizer resistance value sampling circuit, a mistorizer, a mistorizer resistance value detection module and a battery power supply circuit; and the microcontroller is electrically connected with the buck-boost bridge circuit, the mistorizer resistance value sampling circuit, the mistorizer and the mistorizer resistance value detection module sequentially, and the mistorizer resistance value detection module is connected with the microcontroller; the mistorizer resistance value sampling circuit is electrically with the mistorizer resistance value detection module; a feedback circuit is connected between the mistorizer resistance value sampling circuit and the buck-boost bridge circuit, and the feedback circuit is connected with the microcontroller, and therefore, the microcontroller can adjust the output voltage of the buck-boost bridge circuit and keep the output voltage stable; and when an electronic cigarette is used, tobacco juice is almost exhausted, and the mistorizer resistance value detection module detects that the number of times when the resistance value of the mistorizer consecutively exceeds a dry burning protection set resistance value, exceeds a set number of times, the microcontroller instructs the buck-boost bridge circuit to turn off output, and the electronic cigarette automatically stops working.

Description

technical field [0001] The invention relates to the technical field of electronic cigarettes, in particular to an electronic cigarette dry-burn prevention device and a control method thereof. Background technique [0002] Existing electronic cigarettes generally include a suction nozzle, a casing, a liquid storage device installed in the casing, an atomizing component, a power supply, and a circuit control board, without a dry-burning protection module. Existing e-cigarettes need to manually add e-liquid or replace the liquid storage device after the liquid is used up before they can continue to be used. When the liquid in the liquid storage device is used up, the user does not add e-liquid or replace the liquid storage in time When the device continues to smoke, the circuit controlled by the circuit control board continues to work, so that the heating module in the atomization component is dry-burned due to the lack of smoke liquid, resulting in a sharp rise in temperature,...

AI Technical Summary

Problems solved by technology

Existing e-cigarettes need to manually add e-liquid or replace the liquid storage device after the liquid is used up before they can continue to be used. When the liquid in the liquid storage device is used up, the user does not add e-liquid or replace the liquid storage in time When the device continues to smoke, the circuit controlled by the circuit control board continues to work, so that the heating module in the atomization component is dry-burned due to the lack of smoke liquid, resulting in a sharp rise in temperature, resulting in harmful gas and burnt smell that are inhaled into the human body, which is harmful The human body is healthy, and the heat generated rapidly is transmitted to the rest of the electronic cigarette, and it is easy to burn the electronic cigarette or burn the human skin

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