JPH0335697A - Loudspeaker - Google Patents

Loudspeaker

Info

Publication number
JPH0335697A
JPH0335697A JP17016489A JP17016489A JPH0335697A JP H0335697 A JPH0335697 A JP H0335697A JP 17016489 A JP17016489 A JP 17016489A JP 17016489 A JP17016489 A JP 17016489A JP H0335697 A JPH0335697 A JP H0335697A
Authority
JP
Japan
Prior art keywords
diaphragm
divided
voice coil
center
edge
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
JP17016489A
Other languages
Japanese (ja)
Inventor
Sumio Ishihara
石原 純夫
Shoji Nakajima
正二 中島
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP17016489A priority Critical patent/JPH0335697A/en
Publication of JPH0335697A publication Critical patent/JPH0335697A/en
Pending legal-status Critical Current

Links

Landscapes

  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE:To reduce divided resonance and to enable reproducing over a wide range by dividing vibration into two at the center of a plate diaphragm in a lengthwise direction and coupling the plates by an inter-diaphragm edge such as cloth or urethane, etc., thus using these divided two diaphragms as the diaphragm. CONSTITUTION:A plate diaphragm 3 is divided at the center of the lengthwise direction and since the node of the divided resonance is generated in the outer circumference of a voice coil 5, the divided resonance frequency can be forced away to a high range area. Further, since the plate diaphragm 3, where two divided pieces are coupled by an inter-diaphragm edge 4 behaves as one right body concerning a low frequency, the lowest resonance frequency can be kept low. Thus, the wide range reproduction can be realized for a loudspeaker using the plate diaphragm.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、たとえばステレオ、ラジオカセットレコーダ
、カーオーディオ等に使用されるスピーカに関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to speakers used in stereos, radio cassette recorders, car audio, and the like.

従来の技術 第2図は、従来の平板振動板を有したスピーカの構成例
の断面図の一つであり、12はフレーム13はエツジ、
14は平板振動板、15はボイスコイル、16uサヌペ
ンシヨン、17はトッププレート、18はマグネット、
19はセンターポール付きプレート、20は錦糸線、2
1はターミナルである。
BACKGROUND ART FIG. 2 is a cross-sectional view of an example of the structure of a conventional speaker having a flat diaphragm, in which 12 is a frame 13 with edges,
14 is a flat plate diaphragm, 15 is a voice coil, 16u sunupension, 17 is a top plate, 18 is a magnet,
19 is a plate with a center pole, 20 is a tinsel wire, 2
1 is the terminal.

トッププレート17、マグネット18、センターポール
付きプレート19を組合せ同心円状の磁気空隙を持つ磁
気回路を2個形成し、フレーム12に結合されている。
A top plate 17, a magnet 18, and a plate with a center pole 19 are combined to form two magnetic circuits having concentric magnetic gaps, which are coupled to the frame 12.

また2カ所の磁気空隙に入り込ムヨウニボイスコイル1
5をサスペンション16を介してフレーム12に結合し
、平板振動板14をエツジ13を介してフレーム12に
結合するとともにボイスコイル16に結合し振動系を形
成している。さらにボイスコイル15と電気的に接続さ
れた錦糸線2oをターミナル21と接続することにより
スピーカを構成している。
In addition, the voice coil 1 enters the magnetic gap in two places.
5 is coupled to the frame 12 via a suspension 16, and a flat plate diaphragm 14 is coupled to the frame 12 via the edge 13 and to the voice coil 16 to form a vibration system. Further, a tinsel wire 2o electrically connected to the voice coil 15 is connected to a terminal 21 to constitute a speaker.

以上の構成において、ボイスコイル16は、平板振動板
14の長手方向の中心に対して非対称の位置に結合され
て釦シ、平板振動板14に生じゃすい分割共振の節に結
合し、分割共振の減少を図っている。
In the above configuration, the voice coil 16 is coupled at an asymmetric position with respect to the center of the longitudinal direction of the flat plate diaphragm 14, and is coupled to the button and the node of the split resonance that is generated in the flat plate diaphragm 14, thereby causing the split resonance. We are trying to reduce the number of people.

発明が解決しようとする課題 しかしながら、上記従来の構成では、分割共振の減少に
限界があり、再生帯域は釦のすと狭いものにならざるを
得なかった。
Problems to be Solved by the Invention However, with the above-mentioned conventional configuration, there is a limit to the reduction of split resonance, and the reproduction band has to be extremely narrow.

本発明は、上記従来の問題点を解消するもので。The present invention solves the above-mentioned conventional problems.

平板振動板使用のスピーカの分割共振の減少と、広帯域
再生化を目的とするものである。
The purpose is to reduce the split resonance of speakers using flat diaphragms and to reproduce a wide band.

課題を解決するための手段 上記課題を解決するために本発明は、平板振動板の長平
方向の中心で振動板を二分割し、分割された二枚の振動
板を、布あるいはウレタン等の振動板間エツジで結合し
た平板を振動板として用いた構成としたものである。
Means for Solving the Problems In order to solve the above problems, the present invention divides a flat plate diaphragm into two parts at the longitudinal center of the flat plate diaphragm, and connects the two divided diaphragms to a vibration material such as cloth or urethane. This structure uses flat plates connected at interplate edges as a diaphragm.

作用 上記構成とすることにより平板振動板を用いたスピーカ
の分割共振を減少させ、平板振動板使用のスピーカの広
帯域再生が実現できる。
Effect By having the above configuration, it is possible to reduce the split resonance of a speaker using a flat diaphragm, and to realize broadband reproduction of a speaker using a flat diaphragm.

実施例 以下、本発明の一実施例を第1図を用いて説明する。Example An embodiment of the present invention will be described below with reference to FIG.

第1図は、本発明の一実施例に釦けるスピーカの構成を
示す断面図であり、1はフレーム、2は工・フジ、3は
平板振動板、4は振動板間エツジ。
FIG. 1 is a cross-sectional view showing the structure of a speaker according to an embodiment of the present invention, in which 1 is a frame, 2 is a diaphragm, 3 is a flat diaphragm, and 4 is an edge between the diaphragms.

6はボイスコイル、6はサスペンション、7はトッププ
レート 8はマグネット、9はセンターボール付きプレ
ート、10は錦糸線、11はターミナルである。
6 is a voice coil, 6 is a suspension, 7 is a top plate, 8 is a magnet, 9 is a plate with a center ball, 10 is a tinsel wire, and 11 is a terminal.

平板振動板3は長手方向の中心で二分割されてかり、さ
らに布あるいはウレタン等の振動板間エツジ4で結合さ
れてフ・シ、それを一つの振動板としてエツジ2を介し
てフレーム1に結合されている。平板振動板3の分割さ
れたそれぞれにはボイスコイル6が結合されて釦り、そ
のボイスコイル5はサスペンション6を介してフレーム
1に結合されている。またトッププレート7、マグネ・
ソ)8、センターボール付きプレート9を組み合わせ、
同心円状の磁気空隙を持つ磁気回路を形威し、それぞれ
のボイスコイル5が磁気空隙に入り込む位置にこの磁気
回路はフレーム1に結合されている。
The flat plate diaphragm 3 is divided into two parts at the center in the longitudinal direction, and is further joined with an edge 4 between the diaphragms made of cloth or urethane, and then attached to the frame 1 via the edge 2 as one diaphragm. combined. A voice coil 6 is coupled to each of the divided sections of the flat diaphragm 3, and the voice coil 5 is coupled to the frame 1 via a suspension 6. In addition, top plate 7, magnetic
e) 8. Combine plate 9 with center ball,
A magnetic circuit having concentric magnetic air gaps is formed, and this magnetic circuit is connected to the frame 1 at a position where each voice coil 5 enters the magnetic air gap.

さらにボイスコイル6と電気的に結合された綿糸i10
をフレーム1に取り付けられたターミナル11に結合し
てスピーカを構成している。
Furthermore, the cotton thread i10 is electrically coupled to the voice coil 6.
is coupled to a terminal 11 attached to the frame 1 to constitute a speaker.

以上の構成において、平板振動板3は、長平方向の中心
で分割されて釦す1分割共振の節はボイスコイル6の外
周で生じるためその分割共振周波数を高音域へ追いやる
ことができる。さらに平板振動板3は1分割された三片
を振動板間エツジ4で結合されてふ・す、低い周波数に
関しては一枚の剛体に笠しい動作をするため最低共振周
波数を低く保つことができるため、平板振動板使用のス
ピーカの広帯域再生が実現できる。
In the above configuration, the flat plate diaphragm 3 is divided at the center in the longitudinal direction, and the one-division resonance node that is pressed occurs at the outer periphery of the voice coil 6, so that the division resonance frequency can be pushed to the high frequency range. Furthermore, the flat plate diaphragm 3 is made up of three divided pieces connected by the diaphragm edge 4, and at low frequencies, the minimum resonance frequency can be kept low because it performs a strong movement as a single rigid body. Therefore, broadband reproduction of a speaker using a flat diaphragm can be achieved.

発明の効果 以上のように本発明は長方形あるいは楕円形のフレーム
に、長平方向の中心で二分割し商あるいはウレタンなど
の振動板間エツジで連結した平板振動板を布あるいはウ
レタンなどのエツジを介して固定し、その振動板のそれ
ぞれにボイスコイルを有し、それぞれのボイスコイルが
磁気空隙には筐りこむ2個の磁気回路をフレームに固定
しスピーカを構成することによシ平板振動板の分割共振
の少ない、広帯域再生の可能な平板振動板使用のスピー
カを提供することができるものである。
Effects of the Invention As described above, the present invention has a rectangular or elliptical frame, which is divided into two parts at the center in the elongated direction, and connected by a diaphragm edge made of diaphragm or urethane, which is attached to a rectangular or elliptical frame through an edge made of cloth or urethane. The diaphragm has a voice coil on each diaphragm, and each voice coil is housed in the magnetic gap.Two magnetic circuits are fixed to the frame to form a speaker. It is possible to provide a speaker using a flat plate diaphragm that can reproduce a wide band with less split resonance.

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

第1図は本発明の一実施例のスピーカの断面図、第2図
は従来の平板振動板使用スピーカの断面図である。
FIG. 1 is a sectional view of a speaker according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional speaker using a flat diaphragm.

Claims (1)

【特許請求の範囲】[Claims] 長方形あるいは楕円形のフレームに、長手方向の中心で
二分割し布あるいはウレタンなどの振動板間エッジで連
結した平板振動板を布あるいはウレタンなどのエッジを
介して固定し、その平板振動板のそれぞれにボイスコイ
ルを有し、それぞれのボイスコイルがはまりこむ磁気空
隙を有する2個の磁気回路を上記フレームに固定して構
成したスピーカ。
A flat diaphragm that is divided into two at the longitudinal center and connected by an edge made of cloth or urethane is fixed to a rectangular or oval frame via the edge of cloth or urethane, and each of the flat diaphragms is A speaker comprising two magnetic circuits fixed to the frame, each having a voice coil and a magnetic gap into which each voice coil fits.
JP17016489A 1989-06-30 1989-06-30 Loudspeaker Pending JPH0335697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17016489A JPH0335697A (en) 1989-06-30 1989-06-30 Loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17016489A JPH0335697A (en) 1989-06-30 1989-06-30 Loudspeaker

Publications (1)

Publication Number Publication Date
JPH0335697A true JPH0335697A (en) 1991-02-15

Family

ID=15899871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17016489A Pending JPH0335697A (en) 1989-06-30 1989-06-30 Loudspeaker

Country Status (1)

Country Link
JP (1) JPH0335697A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006093774A (en) * 2004-09-21 2006-04-06 Namiki Precision Jewel Co Ltd Multifunctional oscillation actuator for stereo
WO2012120806A1 (en) * 2011-03-04 2012-09-13 パナソニック株式会社 Speaker and electronic apparatus using said speaker

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5376823A (en) * 1976-12-20 1978-07-07 Toshiba Corp Plane driving type speaker

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5376823A (en) * 1976-12-20 1978-07-07 Toshiba Corp Plane driving type speaker

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006093774A (en) * 2004-09-21 2006-04-06 Namiki Precision Jewel Co Ltd Multifunctional oscillation actuator for stereo
WO2012120806A1 (en) * 2011-03-04 2012-09-13 パナソニック株式会社 Speaker and electronic apparatus using said speaker
US8879776B2 (en) 2011-03-04 2014-11-04 Panasonic Corporation Speaker and electronic device using the speaker
JP6052669B2 (en) * 2011-03-04 2016-12-27 パナソニックIpマネジメント株式会社 Speaker and electronic device using the speaker

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