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JPS6457000A - Driving gear for piezoelectric fan - Google Patents

Driving gear for piezoelectric fan

Info

Publication number
JPS6457000A
JPS6457000A JP21308187A JP21308187A JPS6457000A JP S6457000 A JPS6457000 A JP S6457000A JP 21308187 A JP21308187 A JP 21308187A JP 21308187 A JP21308187 A JP 21308187A JP S6457000 A JPS6457000 A JP S6457000A
Authority
JP
Japan
Prior art keywords
piezoelectric fan
piezoelectric
circuit
fan
driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21308187A
Other languages
Japanese (ja)
Inventor
Kazuhiro Henmi
Takeshi Kondo
Tomio Ono
Chiaki Tanuma
Tetsuya Egawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP21308187A priority Critical patent/JPS6457000A/en
Publication of JPS6457000A publication Critical patent/JPS6457000A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE:To enable a large amount of air to be generated while eliminating the necessity for adjusting a driving resonance frequency of a piezoelectric fan by constituting a resonance circuit of the piezoelectric fan using a piezoelectric bimorph element, feedback circuit and an amplifier and driving the piezoelectric fan by self-oscillation. CONSTITUTION:A piezoelectric fan is constituted of an oscillation plate 4, piezoelectric thin plates 3a, 3b and electrodes 1a, 1b formed in both main surfaces of the piezoelectric thin plates. Here forming a feedback electrode 2 for monitoring a driving condition of the piezoelectric fan on one side main surface, an output signal of the feedback electrode 2 is input to an amplifying circuit B via a feedback circuit A, and an output signal of this amplifying circuit B is fed back to a driving signal of the piezoelectric fan. That is, constituting a resonance circuit of the piezoelectric fan, feedback circuit A and the amplifying circuit B, the piezoelectric fan is driven by self-oscillation.
JP21308187A 1987-08-28 1987-08-28 Driving gear for piezoelectric fan Pending JPS6457000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21308187A JPS6457000A (en) 1987-08-28 1987-08-28 Driving gear for piezoelectric fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21308187A JPS6457000A (en) 1987-08-28 1987-08-28 Driving gear for piezoelectric fan

Publications (1)

Publication Number Publication Date
JPS6457000A true JPS6457000A (en) 1989-03-03

Family

ID=16633234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21308187A Pending JPS6457000A (en) 1987-08-28 1987-08-28 Driving gear for piezoelectric fan

Country Status (1)

Country Link
JP (1) JPS6457000A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011027704A1 (en) * 2009-09-01 2011-03-10 株式会社村田製作所 Piezoelectric fan and air-cooling device using piezoelectric fan
CN110113956A (en) * 2017-02-02 2019-08-09 日清食品株式会社 Wafer material for fried food

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011027704A1 (en) * 2009-09-01 2011-03-10 株式会社村田製作所 Piezoelectric fan and air-cooling device using piezoelectric fan
CN102483075A (en) * 2009-09-01 2012-05-30 株式会社村田制作所 Piezoelectric fan and air-cooling device using piezoelectric fan
JP5304899B2 (en) * 2009-09-01 2013-10-02 株式会社村田製作所 Piezoelectric fan and air cooling device using this piezoelectric fan
US9368426B2 (en) 2009-09-01 2016-06-14 Murata Manufacturing Co., Ltd. Piezoelectric fan and air cooling apparatus using the piezoelectric fan
CN110113956A (en) * 2017-02-02 2019-08-09 日清食品株式会社 Wafer material for fried food

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