# US 12,213,524 B2 · Ultrasonic atomizer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,213,524 B2 - Document ID: US12213524B2 - Status: Granted - Kind: B2 - Application number: 17/774,844 - Filed: 2020-11-06 - Published: 2022-12-15 - Granted: 2025-02-04 - Earliest claimed: 2019-11-08 - Assignees: China Tobacco Hunan Industrial Co., Ltd. - Applicants: China Tobacco Hunan Industrial Co., Ltd. - Inventors: Jianfu Liu; Kejun Zhong; Xiaoyi Guo; Xinqiang Yin; Jianhua Yi; Yongquan Zhou - Web page: https://patentgrep.com/patent/US12213524B2 ## CPC - A24F 40/44: Wicks - A24F 40/05: Devices without heating means - A24F 40/10: Devices using liquid inhalable precursors - A24F 40/42: Cartridges or containers for inhalable precursors - B05B 17/0684: {Wicks or the like} - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) ## Abstract The present invention relates to an electronic cigarette set, in particular to an ultrasonic atomizer, comprising an e-liquid guide assembly. In an embodiment, the e-liquid guide assembly comprises an e-liquid guide ceramic, e-liquid guide cotton, and springs located between the e-liquid guide ceramic and the e-liquid guide cotton and abut the e-liquid guide cotton against an atomization piece. Embodiments of the present invention use a combination of an e-liquid guide ceramic and e-liquid guide cotton to guide an e-liquid. Further details are disclosed herein. ## Claims ### Claim 1 An ultrasonic atomizer, comprising an e-liquid guide assembly (2), wherein the e-liquid guide assembly (2) comprises an e-liquid guide ceramic (21) in direct contact with e-liquid, e-liquid guide cotton (22) which is located below the e-liquid guide ceramic (21) and directly connected to the e-liquid guide ceramic (21), and a spring (23) which is located between the e-liquid guide ceramic (21) and the e-liquid guide cotton (22) and abuts the e-liquid guide cotton (22) against an atomization piece (322); the e-liquid guide ceramic (21) is a solid ceramic, and micropores which are used for conducting the e-liquid are integrally formed in the e-liquid guide ceramic (21); and the ultrasonic atomizer further comprises an e-liquid storage assembly (1) and an atomization assembly (3) connected to each other, wherein the atomization assembly (3) comprises an atomization head (32), and the atomization head (32) comprises an atomization sleeve (321) which is conductive and hollow; and the atomization piece (322) for ultrasonic atomization, an insulating seat (323) for supporting the atomization piece (322), and an electrode assembly (324) for electrically connecting the atomization piece (322) with an external power supply are sequentially arranged in an inner cavity of the atomization sleeve (321) from top to bottom. ### Claim 2 (depends on 1) The ultrasonic atomizer according to claim 1, wherein the e-liquid guide assembly (2) is mounted at a lower part of the e-liquid storage assembly (1), the e-liquid storage assembly (1) is provided with a mounting groove (121) connecting an e-liquid bin (13) with an atomization cavity (4), and the e-liquid guide assembly (2) is mounted in the e-liquid storage assembly (1) via the mounting groove (121). ### Claim 3 (depends on 2) The ultrasonic atomizer according to claim 2, wherein a top of the mounting groove (121) is provided with an abutting portion (122) protruding toward the mounting groove (121), mounting steps are provided in the mounting groove (121), a lower surface of the e-liquid guide ceramic (21) is placed on the mounting step, and an upper surface of the e-liquid guide ceramic (21) is abutted and fixed by the abutting portion (122). ### Claim 4 (depends on 3) The ultrasonic atomizer according to claim 3, wherein the e-liquid guide ceramic (21) comprises a ceramic body (211) in direct contact with the e-liquid in the e-liquid bin (13), and at least two e-liquid guide legs (212) arranged at a bottom of the ceramic body (211); the mounting steps are two levels of steps, two ends of the ceramic body (211) are placed on a first-level mounting step (123) of the mounting steps, and the at least two e-liquid guide legs (212) are placed on a second-level mounting step (124) of the mounting steps. ### Claim 5 (depends on 2) The ultrasonic atomizer according to claim 2, wherein two ends of the e-liquid guide cotton (22) cover a bottom of the e-liquid guide ceramic (21), and are abutted in the mounting groove (121) by the e-liquid guide ceramic (21). ### Claim 6 (depends on 1) The ultrasonic atomizer according to claim 1, wherein an atomization cavity (4) is formed between the e-liquid guide ceramic (21) and the atomization piece (322), an air outlet channel (14) connecting the atomization cavity (4) with outside air is formed in the e-liquid storage assembly (1), and an air inlet channel (33) connecting outside air with the atomization cavity (4) is formed in the atomization assembly (3) and the e-liquid storage assembly (1). ### Claim 7 (depends on 1) The ultrasonic atomizer according to claim 1, wherein an upper end of the atomization sleeve (321) is abutted to an upper surface electrode of the atomization piece (322), a lower end of the atomization sleeve (321) is electrically connected to a negative terminal (3242) of the electrode assembly (324), and a lower surface electrode of the atomization piece (322) is electrically connected to a positive terminal (3241) of the electrode assembly (324).