JPH0170491U - - Google Patents

Info

Publication number
JPH0170491U
JPH0170491U JP1987164973U JP16497387U JPH0170491U JP H0170491 U JPH0170491 U JP H0170491U JP 1987164973 U JP1987164973 U JP 1987164973U JP 16497387 U JP16497387 U JP 16497387U JP H0170491 U JPH0170491 U JP H0170491U
Authority
JP
Japan
Prior art keywords
diaphragm
magnetic circuit
magnetic
electroacoustic transducer
transducer unit
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
JP1987164973U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1987164973U priority Critical patent/JPH0170491U/ja
Publication of JPH0170491U publication Critical patent/JPH0170491U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案第１実施例の側断面図、第２図
は同一部切欠上面図、第３図は第２実施例の側断
面図、第４図は第３実施例の一部切欠斜視図、第
５図は従来例の側断面図である。 １は振動板、２はボイスコイル、３は上部プレ
ート、４，４′は突出部、５は中心磁極、６はヨ
ーク、７は制動材である。 Fig. 1 is a side sectional view of the first embodiment of the present invention, Fig. 2 is a partially cutaway top view of the same, Fig. 3 is a side sectional view of the second embodiment, and Fig. 4 is a partially cutaway view of the third embodiment. The perspective view and FIG. 5 are side sectional views of a conventional example. 1 is a diaphragm, 2 is a voice coil, 3 is an upper plate, 4 and 4' are protrusions, 5 is a central magnetic pole, 6 is a yoke, and 7 is a damping member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 放射状に磁束が貫流するリング状の磁気空隙を
有する磁気回路と、該磁気回路の上面に振動可能
に保持されている振動板１及び該振動板１の背面
に接着され且つ前記磁気空隙の内部に挿入されて
いるボイスコイル２とを有する動電型電気音響変
換器ユニツトに於て、前記振動板１のエツジ部分
に相当する磁気回路上面に、最大振幅時に当該エ
ツジ背面に当接する過大振幅阻止用の突出部４が
形成されていることを特徴とする動電型電気音響
変換器ユニツト。 A magnetic circuit having a ring-shaped magnetic gap through which magnetic flux flows radially, a diaphragm 1 vibably held on the top surface of the magnetic circuit, and a diaphragm 1 bonded to the back surface of the diaphragm 1 and inside the magnetic gap. In an electrodynamic electroacoustic transducer unit having a voice coil 2 inserted therein, an over-amplitude blocking device is placed on the upper surface of the magnetic circuit corresponding to the edge portion of the diaphragm 1, and comes into contact with the back surface of the edge at the maximum amplitude. An electrodynamic electroacoustic transducer unit characterized in that a protrusion 4 is formed.
JP1987164973U 1987-10-28 1987-10-28 Pending JPH0170491U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987164973U JPH0170491U (en) 1987-10-28 1987-10-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987164973U JPH0170491U (en) 1987-10-28 1987-10-28

Publications (1)

Publication Number Publication Date
JPH0170491U true JPH0170491U (en) 1989-05-10

Family

ID=31451039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987164973U Pending JPH0170491U (en) 1987-10-28 1987-10-28

Country Status (1)

Country Link
JP (1) JPH0170491U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006165945A (en) * 2004-12-07 2006-06-22 Pioneer Electronic Corp Speaker
JP2015042865A (en) * 2013-07-17 2015-03-05 エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー Sound generator for anti-noise system for influencing exhaust noise and/or intake noise of motor vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006165945A (en) * 2004-12-07 2006-06-22 Pioneer Electronic Corp Speaker
JP4652035B2 (en) * 2004-12-07 2011-03-16 パイオニア株式会社 Speaker
JP2015042865A (en) * 2013-07-17 2015-03-05 エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー Sound generator for anti-noise system for influencing exhaust noise and/or intake noise of motor vehicle
US9066168B2 (en) 2013-07-17 2015-06-23 Eberspächer Exhaust Technology GmbH & Co. KG Sound generator for an anti-noise system for influencing exhaust noise and/or intake noise of a motor vehicle

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