JPS56149900A - Dynamic speaker - Google Patents

Dynamic speaker

Info

Publication number
JPS56149900A
JPS56149900A JP5319080A JP5319080A JPS56149900A JP S56149900 A JPS56149900 A JP S56149900A JP 5319080 A JP5319080 A JP 5319080A JP 5319080 A JP5319080 A JP 5319080A JP S56149900 A JPS56149900 A JP S56149900A
Authority
JP
Japan
Prior art keywords
piezoelectric
yoke
core coil
air core
diaphragm
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.)
Granted
Application number
JP5319080A
Other languages
Japanese (ja)
Inventor
Yoshiaki Hara
Original Assignee
Seiko Instr & Electronics 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 Seiko Instr & Electronics Ltd filed Critical Seiko Instr & Electronics Ltd
Priority to JP5319080A priority Critical patent/JPS56149900A/en
Publication of JPS56149900A publication Critical patent/JPS56149900A/en
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/02Transducers using more than one principle simultaneously

Abstract

PURPOSE:To make a speaker small-sized, thin and also wide band use, by sticking a piezoelectric element on the diaphragm of a dynamic speaker, driving them at the same time, and simultaneously realizing to lower the fequency of a basic mode and also raise the frequency of a secondary vibration mode. CONSTITUTION:A permanent magnet 2 is made to adhere and fixed onto the yoke consisting of a soft magnetic material. In the center of the diaphragm is provided a piezoelectric element 4, and to its outside circumference is made to adhere an air core coil 5. Since the air core coil 5 is located by making the piezoelectric element 4 a guide, it can be placed in a small air gap between the yoke 1 and the permanent magnet 2. The diaphragm 5 onto which the piezoelectric element 4 and the air core coil 5 have been stick are guided by the supporting frame 6, and its circumference is fixed and supported by the fixed ring 7. One side of the electrode of the piezoelectric element 4 and one side of the terminal of the air core coil 5 are processed by the substrate 8 which has been made to adhere onto the reverse side of the yoke 1, through the center hole of the yoke 1.
JP5319080A 1980-04-22 1980-04-22 Dynamic speaker Granted JPS56149900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5319080A JPS56149900A (en) 1980-04-22 1980-04-22 Dynamic speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5319080A JPS56149900A (en) 1980-04-22 1980-04-22 Dynamic speaker

Publications (1)

Publication Number Publication Date
JPS56149900A true JPS56149900A (en) 1981-11-19

Family

ID=12935951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5319080A Granted JPS56149900A (en) 1980-04-22 1980-04-22 Dynamic speaker

Country Status (1)

Country Link
JP (1) JPS56149900A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176500U (en) * 1982-05-20 1983-11-25
US5430803A (en) * 1992-03-31 1995-07-04 Soei Electric Co., Ltd. Bifunctional earphone set
US6751324B2 (en) 2000-03-21 2004-06-15 Pioneer Corporation Speaker device
WO2011077683A1 (en) 2009-12-24 2011-06-30 日本電気株式会社 Electroacoustic transducer, electronic device, method for converting electronic sound, and method for outputting acoustic wave from electronic device
EP2801799A1 (en) * 2013-05-08 2014-11-12 VEGA Grieshaber KG Vibration level switch
US20150010176A1 (en) * 2013-07-05 2015-01-08 Qualcomm Incorporated Apparatus and method for providing a frequency response for audio signals

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176500U (en) * 1982-05-20 1983-11-25
JPH0117917Y2 (en) * 1982-05-20 1989-05-24
US5430803A (en) * 1992-03-31 1995-07-04 Soei Electric Co., Ltd. Bifunctional earphone set
US6751324B2 (en) 2000-03-21 2004-06-15 Pioneer Corporation Speaker device
WO2011077683A1 (en) 2009-12-24 2011-06-30 日本電気株式会社 Electroacoustic transducer, electronic device, method for converting electronic sound, and method for outputting acoustic wave from electronic device
US8913767B2 (en) 2009-12-24 2014-12-16 Lenovo Innovations Limited (Hong Kong) Electro-acoustic transducer, electronic apparatus, electro-acoustic conversion method, and sound wave output method of electronic apparatus
EP2801799A1 (en) * 2013-05-08 2014-11-12 VEGA Grieshaber KG Vibration level switch
CN104142167A (en) * 2013-05-08 2014-11-12 Vega格里沙贝两合公司 Vibration limit switch
US9689733B2 (en) 2013-05-08 2017-06-27 Vega Grieshaber Kg Vibration limit switch
CN104142167B (en) * 2013-05-08 2019-05-28 Vega格里沙贝两合公司 Vibrate limit switch
US20150010176A1 (en) * 2013-07-05 2015-01-08 Qualcomm Incorporated Apparatus and method for providing a frequency response for audio signals
US9976713B2 (en) * 2013-07-05 2018-05-22 Qualcomm Incorporated Apparatus and method for providing a frequency response for audio signals

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