TEMPERATURE CONTROL SYSTEM OF E-CIGARETTE

• US 20180235282A1
• Filed: 04/19/2018
• Published: 08/23/2018
• Est. Priority Date: 11/06/2015
• Status: Active Grant

• Current Assignee: Kennede Electronics Manufacturing Company Limited
• Original Assignee: O-Net Automation Technology (Shenzhen) Limited
• Inventors: Gao, Jianjie, Zhou, Yongquan, Zhou, Bo, Shen, Fei
• Granted Patent: US 10,278,429 B2
• Time in Patent Office: Days
• CPC Class Codes: A24F 40/10 Devices using liquid inhalable precursors
• CPC Class Codes: A24F 40/53 Monitoring, e.g. fault detection
• CPC Class Codes: H05B 1/0227 Applications
• CPC Class Codes: H05B 1/0297 Heating of fluids for non specified applications

Abstract

The present invention relates to an temperature control system of an e-cigarette, which includes a power supply, a liquid guiding member, and a heating element, and further includes an operating voltage input unit separately connected to the power supply and the heating element, a temperature detection unit including a voltage detection module and a temperature processing module that are connected to each other, and an operating voltage adjusting unit separately connected to the temperature processing module and the heating element. According to the present invention, a temperature of the heating element is controlled by using the temperature control system. This avoids the following problems: When the e-cigarette operates, because the temperature of the heating element increases with a longer operating time, the liquid guiding member is burnt or e-liquid molecules are cracked to produce a burnt taste, thereby affecting human health as well as smoke taste and user experience.

Claims

1. A temperature control system of an e-cigarette, comprising a power supply and a heating element, characterized in that it further comprises:

an operating voltage input unit, wherein the operating voltage input unit is separately connected to the power supply and the heating element, and the operating voltage input unit converts original voltage input by the power supply into first operating voltage and supplies power to the heating element;

a temperature detection unit, wherein the temperature detection unit comprises a voltage detection module and a temperature processing module that are connected to each other, the voltage detection module is connected to the heating element, the voltage detection module detects and sends voltage information of the heating element to the temperature processing module, and the temperature processing module converts the voltage information into a heating temperature; and

an operating voltage adjusting unit, wherein the operating voltage adjusting unit is separately connected to the temperature processing module and the heating element, and the operating voltage adjusting unit converts the original voltage input by the power supply into second operating voltage, and selectively supplies power to the heating element according to the heating temperature.

2. The temperature control system according to claim 1, wherein the voltage detection module comprises a signal amplification circuit, and the signal amplification circuit is separately connected to the temperature processing module and the heating element.

3. The temperature control system according to claim 1, wherein the temperature processing module comprises a temperature threshold, the temperature processing module compares the converted-to heating temperature with the temperature threshold to obtain a comparison result, and the operating voltage adjusting unit selectively supplies power to the heating element according to the comparison result.

4. The temperature control system according to claim 2, wherein the temperature processing module comprises a temperature threshold, the temperature processing module compares the converted-to heating temperature with the temperature threshold to obtain a comparison result, and the operating voltage adjusting unit selectively supplies power to the heating element according to the comparison result.

5. The temperature control system according to claim 1, wherein the operating voltage adjusting unit comprises a voltage output module and a switch control module, the switch control module is connected to the temperature processing module, the voltage output module is separately connected to the switch control module and the heating element, and the switch control module controls the voltage output module according to the heating temperature to selectively supply power to the heating element.

6. The temperature control system according to claim 4, wherein the operating voltage adjusting unit further comprises a voltage adjusting module, the voltage adjusting module is connected to the voltage output module, and the voltage adjusting module is configured to adjust a voltage value of the voltage output module.

7. The temperature control system according to claim 5, wherein the voltage adjusting module is a PWM module.

8. The temperature control system according to claim 1, characterized in that it further comprises a power supply voltage detection unit, wherein the power supply voltage detection unit is disposed between the power supply and the operating voltage input unit.

9. The temperature control system according to claim 1, characterized in that it further comprises a temperature control switch, wherein the temperature control switch is connected to the power supply, and the temperature control switch is configured to control ON or OFF of the temperature control system.

10. The temperature control system according to claim 8, characterized in that it further comprises an airflow control unit connected to the temperature control switch, wherein the airflow control unit is configured to identify and determine whether there is a negative pressure generated by air flow, and control ON or OFF of the temperature control switch.

11. The temperature control system according to claim 8, wherein the e-cigarette further comprises an airflow control unit connected to the temperature control system, and the airflow control unit is configured to identify and determine whether there is a negative pressure generated by air flow, and control ON or OFF of the temperature control switch.