Power supply device and aerosol generating device

Abstract

Disclosed is a power supply device for an aerosol generation device. The aerosol generation device includes an atomizer and the power supply device. An airflow passage is formed inside the atomizer. The power supply device includes a power supply main body and a sensor. A sensing passage, a filtering chamber and a communication hole are provided inside the power supply main body, the sensing passage and the filtering chamber are separated, and the communication hole is in communication with the sensing passage and the filtering chamber; the sensor is arranged in the sensing passage; a connecting end used for being connected to the atomizer is provided at one end of the power supply main body, and a through hole is provided in the connecting end. The power supply device can intercept solids and/or liquids entering the sensing passage from the communication hole and influencing the detection of the sensor.

What is claimed is: 
     
         1 . A power supply device for an aerosol generating device, the aerosol generating device comprising an atomizer and the power supply device, an airflow passage being formed inside the atomizer, wherein the power supply device comprises a power supply main body and a sensor, wherein a sensing passage, a filtering chamber and a communication hole are provided in the power supply main body, the sensing passage is separated from the filtering chamber, the communication hole communicates with the sensing passage and the filtering chamber, the sensor is disposed in the sensing passage, the sensor is configured to detect physical characteristics and suction signals of gas in the sensing passage, one end of the power supply main body is provided with a connecting end, the connecting end is configured to connect with the atomizer, a through hole is provided through the connecting end, the through hole communicates with the filtering chamber and the airflow passage, the filtering chamber is configured for preventing solids and/or liquids from entering the sensing passage through the communication hole. 
     
     
         2 . The power supply device according to  claim 1 , wherein the power supply main body comprises a housing, and a sealing member and a bracket provided in the housing, the sealing member is the connecting end, the through hole is provided through the sealing member, the sensing passage is provided inside the bracket, the bracket is arranged between the sealing member and the sensor, the communication hole is provided through the bracket, the communication hole is staggered from the through hole in an axial direction of the atomizer, the filtering chamber is formed by a space between the bracket and the sealing member. 
     
     
         3 . The power supply device according to  claim 1 , wherein a filter element is provided in the filtering chamber, and the filter element is made of a material that is easy to intercept solids and/or liquids. 
     
     
         4 . The power supply device according to  claim 2 , wherein the bracket is provided with a barrier wall, the barrier wall protrudes upward from the bracket, a space defined by the barrier wall is a liquid storage cavity, the liquid storage cavity is aligned with the through hole in the axial direction of the atomizer. 
     
     
         5 . The power supply device according to  claim 4 , wherein the barrier wall comprises a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion protrude upward from the bracket, the space between the first limiting portion and the second limiting portion forms the liquid storage cavity. 
     
     
         6 . The power supply device according to  claim 5 , wherein an upper end of the bracket is provided with an upper plate located between the sealing member and the sensor, the first limiting portion and the second limiting portion protrude upward from the upper plate toward the sealing member, the communication hole is provided through the upper plate, the liquid storage cavity is formed by the space between the upper plate, the first limiting portion and the second limiting portion. 
     
     
         7 . The power supply device according to  claim 6 , wherein the liquid storage cavity is located directly under the through hole, the communication hole is located at one side of the liquid storage cavity. 
     
     
         8 . The power supply device according to  claim 6 , wherein the sealing member is connected to the upper end of the bracket, and a side wall of the sealing member abuts against an inner wall of the housing. 
     
     
         9 . The power supply device according to  claim 6 , wherein a liquid absorbing element is provided in the liquid storage cavity. 
     
     
         10 . The power supply device according to  claim 4 , wherein a liquid absorbing element is provided in the liquid storage cavity, the liquid absorbing element is made of a material with good adsorption properties. 
     
     
         11 . The power supply device according to  claim 2 , wherein the power supply device further comprises a USB charging structure provided on the housing, and a controller, a PCB and a power source provided in the housing, the USB charging structure and the PCB are electrically connected to the power source, the controller is mounted on the PCB, the controller is electrically connected to the sensor. 
     
     
         12 . An aerosol generating device comprising the power supply device according to  claim 1  and an atomizer electrically connected to the power supply device. 
     
     
         13 . The aerosol generating device according to  claim 12 , wherein the atomizer comprises a liquid storage assembly and an atomizing assembly, the liquid storage assembly comprises a liquid storage member and a venting member provided in the liquid storage member, the liquid storage member is provided with a smoke outlet hole that communicates with the outside environment, an inner cavity of the venting member is a smoke outlet passage that communicates with the smoke outlet hole, the atomizing assembly is arranged in the liquid storage member, an atomizing chamber is provided in the atomizing assembly, the atomizing chamber communicates with the smoke outlet passage. 
     
     
         14 . The aerosol generating device according to  claim 13 , wherein an inner cavity of the liquid storage member is a liquid storage chamber configured for storing aerosol-forming substrate, the atomizing assembly comprises an atomizing upper cover disposed in the liquid storage member, the atomizing upper cover is provided with a liquid guiding hole that communicates with the atomizing chamber and the liquid storage chamber. 
     
     
         15 . The aerosol generating device according to  claim 14 , wherein the atomizing assembly further comprises a base connected with the liquid storage member and a heating structure installed on the base, the heating structure comprises a liquid absorbing member and a heating member, the heating member is in contact with the liquid absorbing member, the space in which the heating member heats and atomizes the aerosol-forming substrate is the atomizing chamber, the base is provided with a flow-guiding hole that communicates with the atomizing chamber and the sensing passage.