JPS5765093A - Small-sized speaker for sound synthesis - Google Patents

Small-sized speaker for sound synthesis

Info

Publication number
JPS5765093A
JPS5765093A JP14141780A JP14141780A JPS5765093A JP S5765093 A JPS5765093 A JP S5765093A JP 14141780 A JP14141780 A JP 14141780A JP 14141780 A JP14141780 A JP 14141780A JP S5765093 A JPS5765093 A JP S5765093A
Authority
JP
Japan
Prior art keywords
frame
speaker
air
small
diaphragm plate
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
JP14141780A
Other languages
Japanese (ja)
Inventor
Hiroshi Nozaki
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP14141780A priority Critical patent/JPS5765093A/en
Publication of JPS5765093A publication Critical patent/JPS5765093A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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 
    • H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for telephonic receivers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To lower the high frequency limit frequency even with a small-sized speaker, by constituting an air chamber in fron of the diaphragm plate with the diaphragm plate and speaker frame made of material with high air-tightness and constituting an acoustic filter through this air chamber and a sound dissipating hole provided on the frame. CONSTITUTION:A magnetic circuit 2 consisting of samarium/cobalt high performance magnet 21 and yoke 22 is inserted to an opening provided at a lower speaker frame 1, and a voice coil 3 is wound to the magnet 21. A terminal 4 of speaker frame is fitted to the surrounding of the lower surface of the frame 1 and a diaphragm plate 5 made of a synthetic resin with high air-tightness is covered at the entire frame of the coil side 3. Then, an upper frame 7 having a sound discharge hole 62 at the center on it is provided to cause an air-chamber 61, and an acoustic filter is constituted with an air chamber 61 and the hole 62. Thus, a small-sized speaker suitable for wrist watches can be obtained.
JP14141780A 1980-10-08 1980-10-08 Small-sized speaker for sound synthesis Pending JPS5765093A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14141780A JPS5765093A (en) 1980-10-08 1980-10-08 Small-sized speaker for sound synthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14141780A JPS5765093A (en) 1980-10-08 1980-10-08 Small-sized speaker for sound synthesis

Publications (1)

Publication Number Publication Date
JPS5765093A true JPS5765093A (en) 1982-04-20

Family

ID=15291513

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14141780A Pending JPS5765093A (en) 1980-10-08 1980-10-08 Small-sized speaker for sound synthesis

Country Status (1)

Country Link
JP (1) JPS5765093A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63278490A (en) * 1987-05-08 1988-11-16 Matsushita Electric Ind Co Ltd Electrodynamic type unit
WO2016150202A1 (en) * 2015-03-23 2016-09-29 歌尔声学股份有限公司 Sound wave filter structure and lateral sound emitting loudspeaker module

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63278490A (en) * 1987-05-08 1988-11-16 Matsushita Electric Ind Co Ltd Electrodynamic type unit
WO2016150202A1 (en) * 2015-03-23 2016-09-29 歌尔声学股份有限公司 Sound wave filter structure and lateral sound emitting loudspeaker module
US10511903B2 (en) 2015-03-23 2019-12-17 Goertek.Inc Sound wave filtering structure and side sound generating speaker module

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