KR970013399A - Piezoelectric transformer - Google Patents

Piezoelectric transformer Download PDF

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Publication number
KR970013399A
KR970013399A KR1019960036464A KR19960036464A KR970013399A KR 970013399 A KR970013399 A KR 970013399A KR 1019960036464 A KR1019960036464 A KR 1019960036464A KR 19960036464 A KR19960036464 A KR 19960036464A KR 970013399 A KR970013399 A KR 970013399A
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KR
South Korea
Prior art keywords
ceramic material
piezoelectric ceramic
drive electrode
piezoelectric transformer
piezoelectric
Prior art date
Application number
KR1019960036464A
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Korean (ko)
Other versions
KR100198162B1 (en
Inventor
아키라 안도
Original Assignee
무라따 미치히로
가부시끼가이샤 무라따 세이사꾸쇼
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Publication date
Application filed by 무라따 미치히로, 가부시끼가이샤 무라따 세이사꾸쇼 filed Critical 무라따 미치히로
Publication of KR970013399A publication Critical patent/KR970013399A/en
Application granted granted Critical
Publication of KR100198162B1 publication Critical patent/KR100198162B1/en

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/87—Electrodes or interconnections, e.g. leads or terminals
    • H10N30/872—Interconnections, e.g. connection electrodes of multilayer piezoelectric or electrostrictive devices
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N39/00—Integrated devices, or assemblies of multiple devices, comprising at least one piezoelectric, electrostrictive or magnetostrictive element covered by groups H10N30/00 – H10N35/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/40—Piezoelectric or electrostrictive devices with electrical input and electrical output, e.g. functioning as transformers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/87—Electrodes or interconnections, e.g. leads or terminals
    • H10N30/871—Single-layered electrodes of multilayer piezoelectric or electrostrictive devices, e.g. internal electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Dc-Dc Converters (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

본 발명은 압전 세라믹 재료층이 다수 개의 구동 전극과 겹쳐지는 영역에서 다수 개의 압전 세라믹 재료층의 분리에 의해 발생되는 특성 및 기계적 강도의 저하를 방지하는 다층형 압전 트랜스포머에 관한 것이다.The present invention relates to a multilayered piezoelectric transformer which prevents the degradation of properties and mechanical strength caused by separation of a plurality of piezoelectric ceramic material layers in a region where the piezoelectric ceramic material layer overlaps a plurality of drive electrodes.

다수 개의 압전 세라믹 재료층(2a, ..., 2n)으로 구성된 적층체(3)의 내부에 위치한 구동 전극(7b, ..., 7n)은 다수의 관통 부분(9)을 지니도록 망사 또는 줄무늬와 같이 형성되어, 구동 전극(7b, ..., 7n)의 양 측면 상에 위치한 압전 세라믹 재료층(2a, ..., 2n)이 다수의 위치에서 서로 결합될 수 있도록 한다.The drive electrodes 7b, ..., 7n located inside the stack 3 composed of a plurality of piezoelectric ceramic material layers 2a, ..., 2n are meshed or have a plurality of through portions 9. It is formed like a stripe so that the piezoelectric ceramic material layers 2a, ..., 2n located on both sides of the drive electrodes 7b, ..., 7n can be bonded to each other at a plurality of positions.

Description

압전 트랜스포머Piezoelectric transformer

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

도2는 도1에서 도시된 압전 트랜스포머에서 압전 세라믹 재료층의 상부 측면(2a, ..., 2n)과 압전 세라믹 재료층의 하부 측면(2n)의 상태를 나타내는 평면도이다.FIG. 2 is a plan view showing the state of the upper side surfaces 2a, ..., 2n of the piezoelectric ceramic material layer and the lower side surface 2n of the piezoelectric ceramic material layer in the piezoelectric transformer shown in FIG.

Claims (3)

다수의 압전 세라믹 재료층으로 구성된 적층체; 상기 적층체의 외부 표면상의 다른 위치에서 각기 형성된 제1, 제2, 및 제3단자 전극; 상기 제1단자 전극에 전기적으로 접속된 다수 개의 제1구동 전극; 및 상기 제2단자 전극에 전기적으로 접속되며 상기 적어도 하나의 제2구동 전극 각각은 적어도 하나의 삽입된 상기 압전 세라믹 재료층을 통해 제1구동 전극과 대향하는 적어도 하나의 제2구동 전극을 포함하고, 상기 제1 및 제2구동 전극 중의 적어도 하나는 다수 개의 관통 부분을 포함하여 상기 구동 전극의 양측 상에 위치한 두 개의 압전 세라믹 재료층이 다수의 위치에서 서로 결합되도록 하는 것을 특징으로 하는 압전 트랜스포머.A laminate composed of a plurality of piezoelectric ceramic material layers; First, second, and third terminal electrodes respectively formed at different positions on an outer surface of the laminate; A plurality of first driving electrodes electrically connected to the first terminal electrodes; And at least one second drive electrode electrically connected to the second terminal electrode, the at least one second drive electrode facing the first drive electrode through at least one interposed piezoelectric ceramic material layer; And at least one of the first and second drive electrodes includes a plurality of through portions to allow two layers of piezoelectric ceramic material located on both sides of the drive electrode to be coupled to each other at a plurality of locations. 청구항 1에 있어서, 관통 부분을 가진 상기 구동 전극이 망사의 형태로 형성되는 것을 특징으로 하는 압전 트랜스포머.The piezoelectric transformer according to claim 1, wherein the drive electrode having a penetrating portion is formed in a mesh form. 청구항 1에 있어서, 관통 부분을 가진 상기 구동 전극이 줄무늬의 형태로 형성되는 것을 특징으로 하는 압전 트랜스포머.The piezoelectric transformer according to claim 1, wherein the drive electrode having a through portion is formed in the form of stripes. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960036464A 1995-08-31 1996-08-29 Piezoelectric transformer KR100198162B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP07223057A JP3141744B2 (en) 1995-08-31 1995-08-31 Piezoelectric transformer
JP7-223057 1995-08-31

Publications (2)

Publication Number Publication Date
KR970013399A true KR970013399A (en) 1997-03-29
KR100198162B1 KR100198162B1 (en) 1999-07-01

Family

ID=16792165

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960036464A KR100198162B1 (en) 1995-08-31 1996-08-29 Piezoelectric transformer

Country Status (5)

Country Link
JP (1) JP3141744B2 (en)
KR (1) KR100198162B1 (en)
CN (1) CN1087505C (en)
DE (1) DE19634842C2 (en)
TW (1) TW363283B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6437487B1 (en) * 2001-02-28 2002-08-20 Acuson Corporation Transducer array using multi-layered elements and a method of manufacture thereof
US6392332B1 (en) * 2001-12-04 2002-05-21 Kuan Kuan Sung Laminated piezo ceramic transformer device
US6659954B2 (en) * 2001-12-19 2003-12-09 Koninklijke Philips Electronics Nv Micromachined ultrasound transducer and method for fabricating same
RU2390882C2 (en) * 2004-03-30 2010-05-27 Сарен Системз, Лтд. Interelectrode circuit for piezoelectric measuring converter
JP4910390B2 (en) * 2005-12-26 2012-04-04 株式会社村田製作所 Piezoelectric ceramic and manufacturing method thereof, and piezoelectric resonator and manufacturing method thereof
CN103258950A (en) * 2013-05-14 2013-08-21 三星高新电机（天津）有限公司 Piezoelectric ceramics component

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2433389A1 (en) * 1974-07-11 1976-01-22 Siemens Ag PIEZOELECTRIC TRANSFORMER
JPS56131978A (en) * 1980-03-19 1981-10-15 Nec Corp Multilayer piezoelectric transformer
US5278481A (en) * 1990-02-22 1994-01-11 British Technological Group Ltd. Control of stepping motors
JP3064458B2 (en) * 1991-04-02 2000-07-12 日本電気株式会社 Thickness longitudinal vibration piezoelectric transformer and its driving method

Also Published As

Publication number Publication date
KR100198162B1 (en) 1999-07-01
CN1087505C (en) 2002-07-10
DE19634842A1 (en) 1997-03-06
CN1159659A (en) 1997-09-17
JP3141744B2 (en) 2001-03-05
JPH0969657A (en) 1997-03-11
DE19634842C2 (en) 1998-09-03
TW363283B (en) 1999-07-01

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