Power supply device with temperature control and electronic cigarette

Abstract

The disclosure provides a power supply device with temperature control and an electronic cigarette, wherein the power supply device includes a housing, a battery arranged in the housing, an electrical connection assembly disposed at a first end of the housing, a temperature control board and an airflow sensor disposed in the housing, and a lamp cap dispose at a second end of the housing; the electrical connection assembly and the airflow sensor are electrically connected with the temperature control board respectively, and the temperature control board is electrically connected with the battery. The power supply device with temperature control has temperature control function, which can avoid phenomena such as dry burning of an atomizer of the electronic cigarette; the power supply device has less structural members, low cost and easy assembly, the volume is reduced compared with the power supply device in the prior art, which is more portability.

What is claimed is: 
     
         1 . A power supply device with temperature control configured for supplying power to an atomizer of an electronic cigarette, wherein the power supply device comprises a housing, a battery disposed in the housing, an electrical connection assembly disposed at a first end of the housing, a temperature control board and an airflow sensor disposed in the housing, and a lamp cap disposed at a second end of the housing; the electrical connection assembly and the airflow sensor are electrically connected with the temperature control board respectively, and the temperature control board is electrically connected with the battery. 
     
     
         2 . The power supply device according to  claim 1 , wherein when the airflow sensor is triggered, the temperature control board detects an initial resistance value of the atomizer at room temperature through the electrical connection assembly, obtains a target resistance value of the atomizer at a specific temperature according to the initial resistance value, and supplies power to the atomizer through the electrical connection assembly, and obtains an actual resistance value of the atomizer in a working process through the electrical connection assembly;
 when the trigger of the airflow sensor is stopped, the temperature control board detects a voltage or a current of the atomizer through the electrical connection assembly, and stops detecting when the actual resistance value of the atomizer is recovered to be consistent with the initial resistance value.   
     
     
         3 . The power supply device according to  claim 1 , wherein the lamp cap, the electrical connection assembly or the housing is provided with an airflow inlet, the electrical connection assembly is provided with an airflow outlet, and the airflow inlet is communicated with the airflow outlet to define an airflow channel. 
     
     
         4 . The power supply device according to  claim 1 , wherein the electrical connection assembly comprises a first electrical connector, a second electrical connector, and an insulator; the first electrical connector is inserted with the first end of the housing and is electrically connected with a negative terminal of the temperature control board; the second electrical connector extends into the first electrical connector and is electrically connected with an output terminal of the temperature control board; the insulator is disposed between the first electrical connector and the second electrical connector. 
     
     
         5 . The power supply device according to  claim 4 , wherein one end of the first electrical connector is fitted in the first end of the housing, and another end of the first electrical connector extends out of the housing; an outer peripheral surface of the another end of the first electrical connector is provided with a screw thread, a buckle or a magnetic attractable member. 
     
     
         6 . The power supply device according to  claim 4 , wherein a first insulating sheet is provided between the electrical connection assembly and the battery to insulate them from each other. 
     
     
         7 . The power supply device according to  claim 1 , wherein the temperature control board is provided with a temperature coefficient detection module configured for detecting a measured resistance value and an initial resistance value of the atomizer within a preset time, obtaining a temperature coefficient of a heating element in the atomizer according to the measured resistance value and the initial resistance value, and obtaining a target resistance value of the atomizer at a specific temperature according to the temperature coefficient. 
     
     
         8 . The power supply device according to  claim 1 , wherein the airflow sensor is received and positioned in the lamp cap;
 one end of the temperature control board is inserted with the lamp cap, and a second insulating sheet is provided between another end of the temperature control board and the battery.   
     
     
         9 . The power supply device according to  claim 1 , wherein the power supply device further comprises a bracket which is disposed in the housing and located between the battery and the temperature control board;
 the airflow sensor is received and positioned in the bracket; one end of the temperature control board is inserted with the bracket, and another end of the temperature control board faces to the lamp cap.   
     
     
         10 . An electronic cigarette, comprising a power supply device wherein the power supply device comprises a housing, a battery disposed in the housing, an electrical connection assembly disposed at a first end of the housing, a temperature control board and an airflow sensor disposed in the housing, and a lamp cap disposed at a second end of the housing; the electrical connection assembly and the airflow sensor are electrically connected with the temperature control board respectively, and the temperature control board is electrically connected with the battery. 
     
     
         11 . The electronic cigarette according to  claim 10 , wherein when the airflow sensor is triggered, the temperature control board detects an initial resistance value of the atomizer at room temperature through the electrical connection assembly, obtains a target resistance value of the atomizer at a specific temperature according to the initial resistance value, and supplies power to the atomizer through the electrical connection assembly, and obtains an actual resistance value of the atomizer in a working process through the electrical connection assembly;
 when the trigger of the airflow sensor is stopped, the temperature control board detects a voltage or a current of the atomizer through the electrical connection assembly, and stops detecting when the actual resistance value of the atomizer is recovered to be consistent with the initial resistance value.   
     
     
         12 . The electronic cigarette according to  claim 10 , wherein the lamp cap, the electrical connection assembly or the housing is provided with an airflow inlet, the electrical connection assembly is provided with an airflow outlet, and the airflow inlet is communicated with the airflow outlet to define an airflow channel. 
     
     
         13 . The electronic cigarette according to  claim 10 , wherein the electrical connection assembly comprises a first electrical connector, a second electrical connector, and an insulator; the first electrical connector is inserted with the first end of the housing and is electrically connected with a negative terminal of the temperature control board; the second electrical connector extends into the first electrical connector and is electrically connected with an output terminal of the temperature control board; the insulator is disposed between the first electrical connector and the second electrical connector. 
     
     
         14 . The electronic cigarette according to  claim 13 , wherein one end of the first electrical connector is fitted in the first end of the housing, and another end of the first electrical connector extends out of the housing; an outer peripheral surface of the another end of the first electrical connector is provided with a screw thread, a buckle or a magnetic attractable member. 
     
     
         15 . The electronic cigarette according to  claim 13 , wherein a first insulating sheet is provided between the electrical connection assembly and the battery to insulate them from each other. 
     
     
         16 . The electronic cigarette according to  claim 10 , wherein the temperature control board is provided with a temperature coefficient detection module configured for detecting a measured resistance value and an initial resistance value of the atomizer within a preset time, obtaining a temperature coefficient of a heating element in the atomizer according to the measured resistance value and the initial resistance value, and obtaining a target resistance value of the atomizer at a specific temperature according to the temperature coefficient. 
     
     
         17 . The electronic cigarette according to  claim 10 , wherein the airflow sensor is received and positioned in the lamp cap;
 one end of the temperature control board is inserted with the lamp cap, and a second insulating sheet is provided between another end of the temperature control board and the battery.   
     
     
         18 . The electronic cigarette according to  claim 1 , wherein the power supply device further comprises a bracket which is disposed in the housing and located between the battery and the temperature control board;
 the airflow sensor is received and positioned in the bracket; one end of the temperature control board is inserted with the bracket, and another end of the temperature control board faces to the lamp cap.