Title:
ULTRASONIC ATOMIZER, AND RESONANT-FREQUENCY DETERMINATION METHOD BASED ON ULTRASONIC ATOMIZER
Document Type and Number:
WIPO Patent Application WO/2024/061166
Kind Code:
A1
Abstract:
An ultrasonic atomizer (100), and a resonant-frequency determination method based on the ultrasonic atomizer (100). The ultrasonic atomizer (100) comprises a storage cavity (11), an ultrasonic atomization piece (12), a control circuit (13) and a power source (14). The storage cavity (11) stores an atomization matrix. The ultrasonic atomization piece (12) generates oscillation to atomize the atomization matrix. The control circuit (13) comprises a controller (131), a driving branch (132) and an impedance branch (133), wherein the driving branch (132) is connected to the power source (14) and the controller (131), and the driving branch (132) generates a driving voltage in response to a first pulse signal; the impedance branch (133) is connected between the driving branch (132) and the ultrasonic atomization piece (12), the impedance branch (133) makes a combined impedance of the impedance branch (133) and the ultrasonic atomization piece (12) match the impedance of the driving branch (132), and the impedance branch (133) comprises a first capacitor (C1), which is connected to the ultrasonic atomization piece (12) in parallel; and the controller (131) acquires a first voltage of the ultrasonic atomization piece (12), and determines a resonant frequency of the ultrasonic atomization piece (12) according to the first voltage.
Inventors:
LI XINJUN (CN)
XU ZHONGLI (CN)
LI YONGHAI (CN)
XU ZHONGLI (CN)
LI YONGHAI (CN)
Application Number:
PCT/CN2023/119425
Publication Date:
March 28, 2024
Filing Date:
September 18, 2023
Export Citation:
Assignee:
SHENZHEN FIRST UNION TECH CO (CN)
International Classes:
B05B17/06; G01H13/00
Foreign References:
| CN218459952U | 2023-02-10 | |||
| CN108802529A | 2018-11-13 | |||
| CN105661649A | 2016-06-15 | |||
| CN217342050U | 2022-09-02 | |||
| CN217342045U | 2022-09-02 | |||
| CN109007974A | 2018-12-18 | |||
| JPH0557243A | 1993-03-09 |
Attorney, Agent or Firm:
LIUJIA CHINA IP LAW OFFICE (CN)
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