CN117501716A - 换能器和电子设备 - Google Patents

换能器和电子设备 Download PDF

Info

Publication number
CN117501716A
CN117501716A CN202280043219.2A CN202280043219A CN117501716A CN 117501716 A CN117501716 A CN 117501716A CN 202280043219 A CN202280043219 A CN 202280043219A CN 117501716 A CN117501716 A CN 117501716A
Authority
CN
China
Prior art keywords
space
diaphragm
opening
transducer
base material
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
CN202280043219.2A
Other languages
English (en)
Chinese (zh)
Inventor
内贵崇
下地规之
伊达智洋
合田贤司
天本百合奈
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.)
Rohm Co Ltd
Original Assignee
Rohm Co Ltd
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 Rohm Co Ltd filed Critical Rohm Co Ltd
Publication of CN117501716A publication Critical patent/CN117501716A/zh
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
    • B81B7/00—Microstructural systems; Auxiliary parts of microstructural devices or systems
    • B81B7/0032—Packages or encapsulation
    • B81B7/0061—Packages or encapsulation suitable for fluid transfer from the MEMS out of the package or vice versa, e.g. transfer of liquid, gas, sound
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
    • 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
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • 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
    • H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
    • B81B2201/00—Specific applications of microelectromechanical systems
    • B81B2201/02—Sensors
    • B81B2201/0271—Resonators; ultrasonic resonators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
    • B81B2201/00—Specific applications of microelectromechanical systems
    • B81B2201/03—Microengines and actuators
    • B81B2201/032—Bimorph and unimorph actuators, e.g. piezo and thermo

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Computer Hardware Design (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Micromachines (AREA)
CN202280043219.2A 2021-06-18 2022-06-15 换能器和电子设备 Pending CN117501716A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021-101437 2021-06-18
JP2021101437 2021-06-18
PCT/JP2022/024013 WO2022265050A1 (ja) 2021-06-18 2022-06-15 トランスデューサ及び電子機器

Publications (1)

Publication Number Publication Date
CN117501716A true CN117501716A (zh) 2024-02-02

Family

ID=84527544

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202280043219.2A Pending CN117501716A (zh) 2021-06-18 2022-06-15 换能器和电子设备

Country Status (5)

Country Link
US (1) US12598428B2 (https=)
JP (1) JPWO2022265050A1 (https=)
CN (1) CN117501716A (https=)
DE (1) DE112022003130T5 (https=)
WO (1) WO2022265050A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116996821B (zh) * 2023-09-26 2024-01-02 地球山(苏州)微电子科技有限公司 一种像素发声单元及数字扬声器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005012644A (ja) * 2003-06-20 2005-01-13 Matsushita Electric Ind Co Ltd スピーカそれを用いたモジュールおよび電子機器
JP2017086156A (ja) * 2015-11-02 2017-05-25 セイコーエプソン株式会社 超音波画像装置および超音波画像装置向け制御装置並びに超音波画像の形成方法
CN111656087A (zh) 2018-02-02 2020-09-11 日东电工株式会社 Led背光源用膜、led背光源
WO2020230358A1 (ja) 2019-05-16 2020-11-19 株式会社村田製作所 圧電デバイスおよび音響トランスデューサ
JP7251618B2 (ja) 2019-05-16 2023-04-04 株式会社村田製作所 圧電デバイスおよび超音波トランスデューサ
JP7449661B2 (ja) * 2019-09-13 2024-03-14 ローム株式会社 トランスデューサ

Also Published As

Publication number Publication date
US12598428B2 (en) 2026-04-07
WO2022265050A1 (ja) 2022-12-22
DE112022003130T5 (de) 2024-04-11
US20240129673A1 (en) 2024-04-18
JPWO2022265050A1 (https=) 2022-12-22

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