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Title:
ULTRASONIC VIBRATOR AND ULTRASONIC CLEANING DEVICE USING ULTRASONIC VIBRATOR
Document Type and Number:
WIPO Patent Application WO/2019/123610
Kind Code:
A1
Abstract:
[Problem] To provide: an ultrasonic vibrator that is compact and capable of implementing low-frequency ultrasonic vibration and that is configured to apply ultrasonic vibration to liquid; and a low-frequency spot shower type or cleaning vessel type of ultrasonic cleaning device using this ultrasonic vibrator. [Solution] An ultrasonic vibrator is provided with a plate-shaped piezoelectric element 3 having a spreading vibration mode, and a vibration member 15 constituted by: a vibration plane 17 that is arranged to be spaced from and parallel to a main surface 5 of the piezoelectric element 3 and that is in contact with liquid; a piezoelectric element container part 21 that is in contact with the side surface of the piezoelectric element 3 to fix the piezoelectric element 3; and a vibration conveyance part 16 that connects the vibration plane 17 with the piezoelectric element container part 21, with the vibration plane 17, the piezoelectric element container part 21 and the vibration conveyance part 16 defining a space that surrounds the main surface 5. The vibration plane 17 is configured such that the vibration of the piezoelectric element 3 is conveyed to the vibration plane 17 by the piezoelectric element container part 21 and the vibration conveyance part 16, thereby vibrating the vibration plane 17 in a direction orthogonal to the vibration direction of the spreading vibration mode.

Inventors:
NAKANO Akihisa (3-1-5 Sakae-cho, Hamura-sh, Tokyo 07, 〒2058607, JP)
Application Number:
JP2017/045948
Publication Date:
June 27, 2019
Filing Date:
December 21, 2017
Export Citation:
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Assignee:
KAIJO CORPORATION (3-1-5, Sakae-cho Hamura-sh, Tokyo 07, 〒2058607, JP)
International Classes:
H04R17/00; B08B3/12; H01L21/304; H01L41/09
Attorney, Agent or Firm:
SASAGAWA Taku (Bell Square Hongo 5F, 1-25-4 Hongo Bunkyo-k, Tokyo 33, 〒1130033, JP)
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