Aerosol generating device and working method thereof

Abstract

The invention provides an aerosol generating device and a working method thereof, and relates to the technical field of aerosol generating devices. The aerosol generating device comprises a first aerosol generating assembly, a particle size screening assembly and a controller. The aerosol primary generating device generates primary aerosol with relatively high concentration, the particulate matter content of the aerosol is sequentially changed step by step through a first-stage diffusion device and a second-stage diffusion device, the particle size screening assembly screens the particle size of the output aerosol and then outputs the aerosol, and the controller controls the first-stage diffusion device and the second-stage diffusion device to adjust the particulate matter content of the aerosol and enable the aerosol concentration to be sufficient and uniform, so that the solid aerosol is uniformly and stably output, the content of particulate matters in the aerosol can be continuously changed in a large range and is controllable, the particle size of the output aerosol can be controlled, and the problems that according to an existing aerosol generating device, the particulate matter content of the aerosol cannot be automatically adjusted within a large range, and the particle size of the generated particulate matters of the aerosol cannot be controlled are solved.

Description

technical field [0001] The invention relates to the technical field of aerosol generating devices, in particular to an aerosol generating device and a working method thereof. Background technique [0002] In the fields of high-efficiency air filter development, dust inhalation toxicology research, flow field tracing, and aerosol basic research, it is necessary to use an aerosol generating device capable of generating specific particle sizes and concentrations to simulate the working environment. [0003] The development technology of existing aerosol generating devices mainly revolves around the generation and concentration control of aerosol. Aerosol particles can be divided into solid particles and liquid droplets, and their sizes are usually on the order of microns and nanometers. The existing solid-state aerosol generating devices at home and abroad, according to the different mechanisms of aerosol generation, the generation rate of dust particles contained in the aeros...

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Problems solved by technology

[0004] The embodiment of the present invention provides an aerosol generating device and its working method. By adding a primary diffusion device, a secondary diffusion device and a particle size screening component, after the primary aerosol generating device generates a primary aerosol with a relatively high concentration, The content of aerosol particles is changed step by step through the first-level diffusion device and the second-level diffusion device. The particle size screening component screens the particle size of the output aerosol and outputs it. The controller controls the adjustment of the first-level diffusion device and the second-level diffusion device. The content of aerosol particles not only realizes the uniform and stable output of solid aerosol and the continuous change and controllability of the content of particles in the aerosol in a wide range, but also controls the particle size of the output aerosol, solving the problem of existing aerosol generating devices It is impossible to realize the automatic adjustment of the content of aerosol particles in a large range and the problem that the particle size of the generated aerosol particles cannot be controlled

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