JPH078079B2 - Combined Direct Radiation Speaker-Device - Google Patents

Combined Direct Radiation Speaker-Device

Info

Publication number
JPH078079B2
JPH078079B2 JP22558388A JP22558388A JPH078079B2 JP H078079 B2 JPH078079 B2 JP H078079B2 JP 22558388 A JP22558388 A JP 22558388A JP 22558388 A JP22558388 A JP 22558388A JP H078079 B2 JPH078079 B2 JP H078079B2
Authority
JP
Japan
Prior art keywords
speaker
main
auxiliary
main speaker
cabinet
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.)
Expired - Lifetime
Application number
JP22558388A
Other languages
Japanese (ja)
Other versions
JPH0273800A (en
Inventor
奨 藤原
登 興野
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP22558388A priority Critical patent/JPH078079B2/en
Publication of JPH0273800A publication Critical patent/JPH0273800A/en
Publication of JPH078079B2 publication Critical patent/JPH078079B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は、スピーカーキャビネットの前面に、主スピ
ーカーおよび補助スピーカーを前後に配置してなる複合
形直接放射スピーカー装置に関する。
Description: TECHNICAL FIELD The present invention relates to a composite direct radiation speaker device in which a main speaker and an auxiliary speaker are arranged in front of and behind a speaker cabinet.

[従来の技術] 第3図は、例えば1988年4月発行「Mobil Elect-ronic
Specialist」に示された従来の複合形直接放射スピーカ
ー装置を示す側断面図であり、(1)はバスレフ型のキ
ャビネット、(2)はバスレフポート、(3)はキャビ
ネット(1)の前面(1a)に、キャビネット内に収納さ
れるよう取付けられた補助スピーカー、(4)は補助ス
ピーカー(3)の磁気回路、(5)は、補助スピーカー
(3)の前面にそれらの振動板が対面するよう対向して
配設された主スピーカー、(6)は主スピーカー(5)
の磁気回路、(7)は補助スピーカー(3)の開口部
(7a)を有するフレーム、(8)は主スピーカー(5)
の開口部(8a)を有するフレームである。
[Prior Art] FIG. 3 shows, for example, “Mobil Elect-ronic” issued in April 1988.
FIG. 3 is a side sectional view showing a conventional composite type direct radiation speaker device shown in “Specialist”, where (1) is a bass reflex type cabinet, (2) is a bass reflex port, and (3) is the front side (1a) of the cabinet (1). ), An auxiliary speaker mounted so as to be housed in the cabinet, (4) a magnetic circuit of the auxiliary speaker (3), and (5) such that their diaphragms face the front surface of the auxiliary speaker (3). Main speakers arranged opposite to each other, (6) is a main speaker (5)
Magnetic circuit, (7) is a frame having the opening (7a) of the auxiliary speaker (3), (8) is the main speaker (5)
Is a frame having an opening (8a).

次にその動作について説明する。主スピーカー(5)及
び補助スピーカー(3)に信号が印加されると、主スピ
ーカー(5)及び補助スピーカー(3)の各振動板は互
いに逆位相で振動するが、一方のスピーカーの入力端子
を極性反転させることにより同方向に振動を行わせるこ
とができる。つまり同位相で振動を行い、主スピーカー
(5)で再生された音圧は主スピーカー(5)のフレー
ム(8)に形成された開口(8a)を通過して外部に放射
される。
Next, the operation will be described. When a signal is applied to the main speaker (5) and the auxiliary speaker (3), the diaphragms of the main speaker (5) and the auxiliary speaker (3) vibrate in opposite phases, but the input terminals of one speaker By reversing the polarity, it is possible to vibrate in the same direction. That is, they vibrate in the same phase, and the sound pressure reproduced by the main speaker (5) passes through the opening (8a) formed in the frame (8) of the main speaker (5) and is radiated to the outside.

なお、主スピーカー(5)及び補助スピーカー(3)は
主として低音用のスピーカーであり、聴取者に豊な低音
再生を提供するものである。
It should be noted that the main speaker (5) and the auxiliary speaker (3) are mainly speakers for bass and provide a listener with rich bass reproduction.

[発明が解決しようとする課題] 従来の複合形直接放射スピーカー装置は以上の様に構成
されているので、主スピーカー(5)からの音放射は磁
気回路(6)に妨げられ、フレーム(8)に設けた開口
(8a)を通して行われる。このためスピーカーから放射
される音の指向性は著しく乱れ、中心軸上の音圧レベル
は周辺部の音圧に比べて著しく低下するという問題点が
あった。
[Problems to be Solved by the Invention] Since the conventional composite type direct radiation speaker device is configured as described above, sound radiation from the main speaker (5) is blocked by the magnetic circuit (6), and the frame (8) ) Through the opening (8a). Therefore, there is a problem that the directivity of the sound radiated from the speaker is significantly disturbed and the sound pressure level on the central axis is significantly lower than the sound pressure in the peripheral portion.

この発明は上記の様な問題点を解消するためになされた
もので、主スピーカーの中心軸上においても十分な音圧
レベルを確保し、聴取領域に一様な指向特性を得ること
のできる複合形直接放射スピーカー装置を得ることを目
的とする。
The present invention has been made in order to solve the above-mentioned problems, and is a composite structure that can secure a sufficient sound pressure level even on the central axis of the main speaker and can obtain a uniform directional characteristic in the listening area. The purpose is to obtain a direct radiating speaker device.

[課題を解決するための手段] この発明に係る複合形直接放射スピーカー装置は、キャ
ビネットの前側に配置される主スピーカーの磁気回路を
外磁形磁気回路で構成し、この主スピーカーと補助スピ
ーカーとで構成される空間を主スピーカーの空気室と
し、キャビネットと補助スピーカーとで構成される空間
を補助スピーカーの空気室とするとともに、主スピーカ
ーの磁気回路のポールピースに主スピーカーの空気室と
外部とを連通する開口を設けたものである。
[Means for Solving the Problems] In the composite direct radiation speaker device according to the present invention, the magnetic circuit of the main speaker arranged on the front side of the cabinet is constituted by an external magnetic circuit, and the main speaker and the auxiliary speaker are connected to each other. The space formed by is the main speaker air chamber, the space formed by the cabinet and the auxiliary speaker is the auxiliary speaker air chamber, and the main speaker magnetic circuit pole piece is connected to the main speaker air chamber and the outside. Is provided with an opening communicating with.

[作用] この発明における複合形直接放射スピーカー装置は、主
スピーカー磁気回路のポールピースの開口とフレームの
開口からスピーカーの音放射を行い、主スピーカーの中
心軸上においても十分な音圧レベルが確保される。
[Operation] The composite direct radiation speaker device according to the present invention radiates the sound of the speaker through the opening of the pole piece and the frame of the main speaker magnetic circuit, and ensures a sufficient sound pressure level even on the central axis of the main speaker. To be done.

[実施例] 以下、この発明の一実施例を図について説明する。第1
図はこの発明の一実施例を示す側断面図、第2図はこの
実施例の実装例を示す一部欠載側面図である。図におい
て、(10)はスピーカーキャビネット、(11)はキャビ
ネット(10)の前面(10a)に、キャビネット内に収納
されるよう取付けられた補助スピーカー、(12)はキャ
ビネット(10)の前面(10a)に、キャビネット前側に
配設されるよう取付けられた主スピーカー、(13)(1
4)は上記各スピーカーのフレーム、(13a)(14a)は
フレーム(13)(14)に設けられた開口、(15)(16)
は上記各スピーカーの振動板、(17)(18)は上記各ス
ピーカーのそれぞれの振動板(15)(16)を支えるため
のスパイダー、(19)(20)は同じくそれぞれの磁気回
路で、マグネット(21)(22)、プレート(23)(24)
及びポールピース(25)(26)によって外磁形磁気回路
を形成している。また、(26a)は主スピーカーのポー
ルピース(26)に設けられた開口、(27)は補助スピー
カー(11)の空気室、(28)は主スピーカー(12)の空
気室である。なお、第2図の(29)は、この実施例のス
ピーカー装置の実装時に、防塵のため主スピーカー(1
2)の外磁形磁気回路部分を覆うサランネット(商品
名)等からなる防塵ネットである。
[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. First
FIG. 2 is a side sectional view showing an embodiment of the present invention, and FIG. 2 is a partially cutaway side view showing a mounting example of this embodiment. In the figure, (10) is a speaker cabinet, (11) is an auxiliary speaker mounted on the front surface (10a) of the cabinet (10), and (12) is the front surface (10a) of the cabinet (10). ) To the main speaker mounted on the front side of the cabinet, (13) (1
4) is the frame of each speaker, (13a) (14a) are openings provided in the frames (13) (14), (15) (16)
Is a diaphragm of each speaker, (17) and (18) are spiders for supporting the diaphragms (15) and (16) of each speaker, and (19) and (20) are magnetic circuits of the same. (21) (22), Plates (23) (24)
And the pole pieces (25) and (26) form an outer magnet type magnetic circuit. Further, (26a) is an opening provided in the pole piece (26) of the main speaker, (27) is an air chamber of the auxiliary speaker (11), and (28) is an air chamber of the main speaker (12). Note that (29) in FIG. 2 shows the main speaker (1
It is a dustproof net consisting of a Saran net (trade name) that covers the outer magnetic type magnetic circuit part of 2).

以上の構成において、密閉されたキャビネット(10)の
前面(10a)に補助スピーカー(11)が取付けられ、こ
の補助スピーカー(11)の前面に補助スピーカー(11)
の振動板(15)と主スピーカー(12)の振動板(16)が
対面する様に主スピーカー(12)を縦続接続している。
この結果、キャビネット(10)と補助スピーカーとの空
間は全て補助スピーカー(11)の空気室(27)として作
用し、補助スピーカー(11)と主スピーカー(12)の間
にできる空間は、主スピーカー(12)用の空気室(28)
として作用することになる。そして主スピーカー(12)
からの音は、2分され、一方は主スピーカー(12)のポ
ールピース(26)に設けた開口(26a)を通過して、主
スピーカー(12)の中心軸上にいる聴取者に放射され、
他方は、主スピーカー(12)のフレーム(14)に設けた
開口(14a)を通過して、主スピーカー(12)の周辺に
いる聴取者に放射される。
In the above configuration, the auxiliary speaker (11) is attached to the front surface (10a) of the closed cabinet (10), and the auxiliary speaker (11) is attached to the front surface of the auxiliary speaker (11).
The main speaker (12) is cascade-connected so that the diaphragm (15) and the diaphragm (16) of the main speaker (12) face each other.
As a result, the space between the cabinet (10) and the auxiliary speaker acts as the air chamber (27) of the auxiliary speaker (11), and the space formed between the auxiliary speaker (11) and the main speaker (12) is the main speaker. Air chamber for (12) (28)
Will act as. And the main speaker (12)
Sound is divided into two, and one of them passes through the opening (26a) provided in the pole piece (26) of the main speaker (12) and is radiated to the listener on the central axis of the main speaker (12). ,
The other passes through the opening (14a) provided in the frame (14) of the main speaker (12) and is radiated to the listener around the main speaker (12).

こうして、主スピーカーの中心軸上においても十分な音
圧レベルを確保し、聴取領域に一様な指向性を提供す
る。
In this way, a sufficient sound pressure level is secured even on the central axis of the main speaker, and uniform directivity is provided to the listening area.

なお、上記実施例では振動板(15)(16)に平面型のも
のを用いた場合を示したが、これに限らずコーン型の振
動板でも、更には角型や円形の振動板でも同等の効果を
奏する。
In the above embodiment, the diaphragms (15) and (16) are of the flat type, but the present invention is not limited to this, and a cone type diaphragm, a square type or a circular type diaphragm is equivalent. Produce the effect of.

さらに、主スピーカー(12)のポールピース(26)の開
口(26a)の形状については、単に円筒状ばかりでな
く、外部に向って断面寸法が大きくなるホーン形状等、
任意の形状を用いて良いことは勿論である。
Further, the shape of the opening (26a) of the pole piece (26) of the main speaker (12) is not only a cylindrical shape, but also a horn shape whose cross-sectional dimension increases toward the outside.
Of course, any shape may be used.

[発明の効果] 以上の様に、この発明によれば、キャビネットの前側に
配置される主スピーカーの磁気回路を外磁形磁気回路で
構成し、この主スピーカーと補助スピーカーとで構成さ
れる空間を主スピーカーの空気室とし、キャビネットと
補助スピーカーとで構成される空間を補助スピーカーの
空気室とするとともに、主スピーカーの磁気回路のポー
ルピースに主スピーカーの空気室と外部とを連通する開
口を設けたので、主スピーカーの中心軸上でも十分な音
圧レベルを確保でき、聴取領域に一様な指向性を提供で
きる効果がある。
[Advantages of the Invention] As described above, according to the present invention, the magnetic circuit of the main speaker arranged on the front side of the cabinet is formed by the external magnetic type magnetic circuit, and the space formed by the main speaker and the auxiliary speaker is formed. Is the air chamber of the main speaker, the space consisting of the cabinet and the auxiliary speaker is the air chamber of the auxiliary speaker, and the pole piece of the magnetic circuit of the main speaker has an opening that connects the air chamber of the main speaker to the outside. Since it is provided, there is an effect that a sufficient sound pressure level can be secured even on the central axis of the main speaker, and uniform directivity can be provided to the listening area.

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

第1図はこの発明の一実施例を示す側断面図、第2図は
この実施例の実装例を示す一部欠載側面図、第3図は従
来の複合形直接放射スピーカー装置を示す側断面図であ
る。 図において、(10)はスピーカーキャビネット、(10
a)はそれの前面、(11)は補助スピーカー、(12)は
主スピーカー、(13)(14)はフレーム、(15)(16)
は振動板、(19)(20)は磁気回路で、(25)(26)は
ポールピース、(26a)は開口、(27)(28)は空気
室、(29)は防塵ネットである。 図中同一符号は同一あるいは相当部分を示す。
FIG. 1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is a side view showing a part of a mounting example of this embodiment, and FIG. 3 is a side view showing a conventional composite type direct radiation speaker device. FIG. In the figure, (10) is a speaker cabinet and (10
a) is the front of it, (11) is the auxiliary speaker, (12) is the main speaker, (13) (14) is the frame, (15) (16)
Is a diaphragm, (19) and (20) are magnetic circuits, (25) and (26) are pole pieces, (26a) are openings, (27) and (28) are air chambers, and (29) is a dustproof net. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】スピーカーキャビネットの前面に、主スピ
ーカーおよび補助スピーカーを、それらの振動板が対面
するよう前後に配置してなる複合形直接放射スピーカー
装置において、キャビネットの前側に配置される主スピ
ーカーの磁気回路を外磁形磁気回路で構成し、この主ス
ピーカーと上記補助スピーカーとで構成される空間を主
スピーカーの空気室とし、上記キャビネットと補助スピ
ーカーとで構成される空間を補助スピーカーの空気室と
するとともに、上記主スピーカーの磁気回路のポールピ
ースに上記主スピーカーの空気室と外部とを連通する開
口を設けたことを特徴とする複合形直接放射スピーカー
装置。
1. A composite direct radiating speaker device comprising a speaker cabinet, a main speaker and an auxiliary speaker arranged in front and back so that their diaphragms face each other, and a main speaker arranged in front of the cabinet. The magnetic circuit is composed of an external magnetic circuit, the space formed by the main speaker and the auxiliary speaker is used as the air chamber of the main speaker, and the space formed by the cabinet and the auxiliary speaker is used as the air chamber of the auxiliary speaker. In addition, the composite direct radiation speaker device is characterized in that an opening is provided in the pole piece of the magnetic circuit of the main speaker so that the air chamber of the main speaker communicates with the outside.
JP22558388A 1988-09-09 1988-09-09 Combined Direct Radiation Speaker-Device Expired - Lifetime JPH078079B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22558388A JPH078079B2 (en) 1988-09-09 1988-09-09 Combined Direct Radiation Speaker-Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22558388A JPH078079B2 (en) 1988-09-09 1988-09-09 Combined Direct Radiation Speaker-Device

Publications (2)

Publication Number Publication Date
JPH0273800A JPH0273800A (en) 1990-03-13
JPH078079B2 true JPH078079B2 (en) 1995-01-30

Family

ID=16831586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22558388A Expired - Lifetime JPH078079B2 (en) 1988-09-09 1988-09-09 Combined Direct Radiation Speaker-Device

Country Status (1)

Country Link
JP (1) JPH078079B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100054492A1 (en) * 2008-08-29 2010-03-04 Sony Ericsson Mobile Communications Ab Leak-Tolerant Earspeakers, Related Portable Electronic Devices and Methods of Operating the Same

Also Published As

Publication number Publication date
JPH0273800A (en) 1990-03-13

Similar Documents

Publication Publication Date Title
US3688864A (en) Infinite dynamic damping loudspeaker systems
US4051919A (en) High fidelity speaker enclosure
JPS61167299A (en) Speaker unit
JPS62226799A (en) Stereophonic electric acoustic exchange
US3933219A (en) Speaker system
US3291251A (en) Divided panel board for hi-fi speaker systems
US3645355A (en) Loudspeaker system
JPH02218295A (en) Audio output device
JPH078079B2 (en) Combined Direct Radiation Speaker-Device
JPH02170795A (en) Panel type loudspeaker
JPH01151898A (en) Low sound loud speaker box
JP3325913B2 (en) Microphone capsule
JP2597425B2 (en) Omnidirectional speaker system
JPS60199296A (en) Speaker device
JPH02291798A (en) Audio output device
JPH11243592A (en) Loud speaker system
JP3191524B2 (en) Composite speaker
JP2574365Y2 (en) Speaker system
KR870000732Y1 (en) A speaker
JP2615457B2 (en) Speaker system
JP2004500787A (en) Speaker device with housing
KR200196949Y1 (en) Surround and low pitched type speaker
JPH01246995A (en) Nondirectional loudspeaker device
JPH0724874Y2 (en) Speaker
JPH05153680A (en) Loudspeaker unit