JPS606593B2 - horn speaker - Google Patents
horn speakerInfo
- Publication number
- JPS606593B2 JPS606593B2 JP8221778A JP8221778A JPS606593B2 JP S606593 B2 JPS606593 B2 JP S606593B2 JP 8221778 A JP8221778 A JP 8221778A JP 8221778 A JP8221778 A JP 8221778A JP S606593 B2 JPS606593 B2 JP S606593B2
- Authority
- JP
- Japan
- Prior art keywords
- horn
- speaker according
- diaphragm
- horn speaker
- partition
- 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
Links
- 238000005192 partition Methods 0.000 claims description 35
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000006866 deterioration Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
【発明の詳細な説明】
この発明は位相等価機能を有したホーンスピーカに関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a horn speaker having a phase equalization function.
第１図は位相等価器を有した従釆のホーンスピーカを示
す。FIG. 1 shows a secondary horn speaker with a phase equalizer.
第１図において、１は位相等価器、２ａ，２ｂはスロー
ト、３は振動板、３ｇは振動板３前方のエヤーギャップ
、４はカバー、５はリング状マグネット、６は磁気回路
を構成するヨーク、７はホーンのスロー卜部、８はホー
ン、９は上記位相等価器１の出口と上記ホーン８のスロ
ー卜部７とを結合するための音道である。一般にホーン
スピーカにおいては周波数帯域を拡げるため第１図のよ
うな位相等価器１を用いている。In Fig. 1, 1 is a phase equalizer, 2a and 2b are throats, 3 is a diaphragm, 3g is an air gap in front of the diaphragm 3, 4 is a cover, 5 is a ring-shaped magnet, and 6 is a yoke that constitutes a magnetic circuit. , 7 is the throw section of the horn, 8 is the horn, and 9 is a sound path for coupling the exit of the phase equalizer 1 and the throw section 7 of the horn 8. Generally, in a horn speaker, a phase equalizer 1 as shown in FIG. 1 is used to widen the frequency band.
処がこのような位相等価器１を設けたものにあっては第
２図′点線ａに示すように波長が短かくなる再生周波数
の上限近くの周波数において、音圧特性の劣化が生じる
。この音圧特性の劣化の原因は振動板全体あるいはエッ
ジ部の構造、材料、や振動板の種類および振動板の取り
付け方等に起因することも考えられる外、位相等価器の
機・造、および位相等価器の取り付け方にも起因すると
も考えられる。そこで、従来の位相等価器の構造及び位
相等価器とホーンのスロー卜部との相対位置関係などを
慎重に見直し、種々の構造分析、相対位置関係の分析を
行った結果、理論的に上記劣化があり得ると思われる構
造、相対的位置関係を見出した。つまり、位相等価器の
各スロートの振動板側の端から、ホーソのスロート部に
おけるホーン中心軸に垂直な面までの距離が夫々相違し
ていることを見し、出し、この相違によって、位相等価
器の各スロートを通ってホーンスロート部に到達する各
音波の位相が異ることになり、ホーンのスロー卜部で合
成される音波に特性上の劣化が生じることが判った。こ
の理論に基づいて、振動板の前方における位相等価する
ための複数個の閉口を、ホーンの出口側閉口部まで独立
して延在させた構造として試験を行った結果、上記高音
域における特性の劣化を解消できたのである。このため
、ホーンののど部に円筒状の位相等価器を設ける構成の
ものが提供されているものの、このようなスピ−力にあ
ってもエヤーギャップ内部で半径方向に生じる音圧分布
に高再生周波数帯城で特性が劣化する不都合がある。However, in a device equipped with such a phase equalizer 1, the sound pressure characteristics deteriorate at frequencies near the upper limit of the reproduction frequency where the wavelength becomes short, as shown by the dotted line a in FIG. The causes of this deterioration of sound pressure characteristics may be due to the structure and material of the entire diaphragm or its edges, the type of diaphragm, the way the diaphragm is attached, etc., as well as the mechanism and construction of the phase equalizer, It is also thought that this may be caused by the way the phase equalizer is attached. Therefore, we carefully reviewed the structure of the conventional phase equalizer and the relative positional relationship between the phase equalizer and the horn's throw section, and conducted various structural analyzes and analyzes of the relative positional relationship. We discovered a possible structure and relative positional relationship. In other words, the distance from the end of each throat of the phase equalizer on the diaphragm side to the plane perpendicular to the center axis of the horn in the throat section of the hose is different. It has been found that the phases of the sound waves that pass through each throat of the horn and reach the horn throat section are different, resulting in a characteristic deterioration of the sound waves synthesized at the throat section of the horn. Based on this theory, we conducted a test with a structure in which multiple closures for phase equalization in front of the diaphragm independently extended to the exit-side closure of the horn. We were able to eliminate the deterioration. For this reason, although a configuration in which a cylindrical phase equalizer is provided at the throat of the horn is provided, even with such a speaker force, the sound pressure distribution generated in the radial direction inside the air gap has a high reproducibility. There is an inconvenience that the characteristics deteriorate depending on the frequency band.
この発明は以上のように、位相等価器を使ったホーンス
ピーカにおける高音域での音圧特性の劣化を除去あるい
は抑制することを目的とし、具体的には、振動板前方に
おける位相等価するための複数個の放射状の閉口をホー
ンの出口側関口部までほゞ独立して延在させることによ
り、上記目的を達成するものである。As described above, the present invention aims to eliminate or suppress the deterioration of the sound pressure characteristics in the high frequency range of a horn speaker using a phase equalizer, and specifically, it aims to eliminate or suppress the deterioration of sound pressure characteristics in the high frequency range in a horn speaker using a phase equalizer. The above objects are achieved by having a plurality of radial closures extending substantially independently to the outlet end of the horn.
以下この発明の実施例を第３図〜第６図によって説明す
る。Embodiments of the present invention will be described below with reference to FIGS. 3 to 6.
即ちこれら第３図〜第６図において、９１，９２，９３
，９４，９５，９６，９７は７個の隔壁で、注型あるい
は、単一金属材（例えばアルミ）からの削り出し等によ
り、夫々一体に形成されており、またそのホーン出口側
端面９１ｃ，９２Ｃ，９３Ｃ，９４Ｃ，９５Ｃ，９６Ｃ
，９７Ｃはホーン８自体の出口側端面８ａと同一面上に
ある。That is, in these FIGS. 3 to 6, 91, 92, 93
, 94, 95, 96, and 97 are seven partition walls, each of which is integrally formed by casting or machining from a single metal material (for example, aluminum). 92C, 93C, 94C, 95C, 96C
, 97C are on the same plane as the exit side end surface 8a of the horn 8 itself.
１０１，１０２，１０３，１０４，１０５，１０６，１
０７は上記各隔壁間に形成された関口で、１０１ａ，１
０２ａ，１０３ａ，１０４ａ，１０５ａ，１０６ａ，１
０７ａは振動板３で生起された音波の入口部でその隣接
する開口部の長さが最も外側の周辺において再生周波数
の上限周波数の波長（以下＾という）の１／沙〆下にさ
れている。101, 102, 103, 104, 105, 106, 1
07 is a sekiguchi formed between the above-mentioned partition walls, and 101a, 1
02a, 103a, 104a, 105a, 106a, 1
07a is the entrance part of the sound wave generated by the diaphragm 3, and the length of the adjacent opening is set to be 1/sa below the wavelength (hereinafter referred to as ^) of the upper limit frequency of the reproduction frequency at the outermost periphery. .
１０１ｂ，１０２ｂ，１０３ｂ，１０４ｂ，１０５ｂ，
１０６ｂ，１０７ｂは音波の出口部、１１は上記各隔壁
のドーム形振動板３と同Ｄ状をなす相互結合部で、音軸
と直角方向の半径は１′４＾以下に形成されている。101b, 102b, 103b, 104b, 105b,
Reference numerals 106b and 107b represent exit portions of sound waves, and 11 represents a mutual coupling portion having the same D shape as the dome-shaped diaphragm 3 of each of the above-mentioned partition walls, and the radius in the direction perpendicular to the sound axis is formed to be 1'4^ or less.
１２，１３は振動板３を秋持する押え環で、押え環１２
はヨーク６の凹窓６１に、押え環１３はホーン８の凹窓
８１に夫々隊合されている。12 and 13 are holding rings that hold the diaphragm 3, and the holding ring 12
is arranged in the concave window 61 of the yoke 6, and the presser ring 13 is arranged in the concave window 81 of the horn 8, respectively.
なお、ホーン８の音波入口側の内径は振動板３のドーム
部の径より大きい。また、図示のように各壁９１，９２
，９３，９４，９５，９６，９７は何れも、その外側面
９１ａ，９２ａ，９３ａ，９４ａ，９５ａ，９６ａ，９
７ａがホーン８内周面に合致する形状に形成されており
、上記一体をなす各隔壁をホーン８内にその出口側から
挿入隊合することにより、上記開口１０１，１０２，１
０３，１０４，１０５，１０６，１０７は、その昔波入
口側１０１ａ，１０２ａ，１０３ａ，１０４ａ，１０５
ａ，１０６ａ，１０７ａから音波出口１０１ｂ，１０２
ｂ’１０３ｂ，１０４ｂ，１０５ｂ，１０６ｂ，１０７
ｂまで、夫々独立して延在している。尤も工作上の精度
、組み立て時の精度により、ホーン８内周面と各隔壁外
側面９１ａ，９２ａ，９３ａ，９４ａ，９６ａ，９６ａ
，９７ａとの間に僅かな隙間が出来る場合もあるが、こ
の場合も、各開□１０１〜１０７は夫々はゞ独立してい
ると言える。また上記各隔壁９１，９２，９３，９４，
９５，９６，９７は何れもその外側面形状を音軸を中心
とする円周方向の厚さを、上記各関口１０１〜１０７の
何れもその昔波入口側１０１ａ〜１０７ａから音波出口
側１０１ｂ〜１０７ｂへと、その昔軸に直角な面におけ
る面積が指数函数的に潮欠大きくなるように構成してあ
る。即ち、図示の如く、各隔壁９１〜９７の何れも、音
軸と直角方向即ちホーン隆方向の寸法が音波入口側から
音波出口側へと漸次大きく、又、音軸を中心とする円周
方向の厚さが音波入口側から音波出口側へと漸次薄くな
るように形成されている。従って、各隔壁の側面９１ｂ
，９２ｂ，９３ｂ，９４ｂ，９５ｂ，９６ｂ，９７ｂは
同一平面内において一方向に傾斜している。上記第３図
〜第６図に示す実施例における音圧特性は第２図の実線
ｂに示すようになり、第２図との比較において判るよう
に、高音域における音圧の劣化は殆んど見られない。Note that the inner diameter of the horn 8 on the sound wave inlet side is larger than the diameter of the dome portion of the diaphragm 3. In addition, as shown in the figure, each wall 91, 92
, 93, 94, 95, 96, 97 are all outer surfaces 91a, 92a, 93a, 94a, 95a, 96a, 9
7a is formed in a shape that matches the inner circumferential surface of the horn 8, and by inserting and aligning each of the integral partition walls into the horn 8 from its exit side, the openings 101, 102, 1 are formed.
03, 104, 105, 106, 107 are the old waves entrance side 101a, 102a, 103a, 104a, 105
a, 106a, 107a to sound wave outlets 101b, 102
b'103b, 104b, 105b, 106b, 107
They each extend independently up to b. Of course, depending on the accuracy of workmanship and assembly accuracy, the inner peripheral surface of the horn 8 and the outer surface of each partition wall 91a, 92a, 93a, 94a, 96a, 96a
, 97a, but in this case as well, each opening 101-107 can be said to be independent. In addition, each of the partition walls 91, 92, 93, 94,
95, 96, and 97 all have their outer surface shapes and thicknesses in the circumferential direction centered on the sound axis. 107b, it was constructed so that the area in the plane perpendicular to the axis increases exponentially. That is, as shown in the figure, the dimensions of each of the partition walls 91 to 97 in the direction perpendicular to the sound axis, that is, in the direction of the horn ridge, gradually increase from the sound wave inlet side to the sound wave outlet side, and also in the circumferential direction around the sound axis. The thickness of the waveguide is formed so that it gradually becomes thinner from the sound wave inlet side to the sound wave outlet side. Therefore, the side surface 91b of each partition
, 92b, 93b, 94b, 95b, 96b, and 97b are inclined in one direction within the same plane. The sound pressure characteristics in the embodiments shown in Figures 3 to 6 above are as shown by the solid line b in Figure 2, and as can be seen from the comparison with Figure 2, there is almost no deterioration in sound pressure in the high frequency range. I can't see it.
この高音城における音圧の劣化が袷んど見られない技術
的根拠は上述のように、ホーンスロート部における位相
の異る音波の合成が行なわれないからではなかろうかと
思われる。なお、第３図〜第６図のものにおいても、ホ
ーン８の出口においては各独立関口１０１〜１０７から
放射される音波は外部空間において合成されるが上述の
ようにホーンスロート部のような狭い空間で袷んど完全
に合成されるのとは異なり、各独立関口１０１〜１０７
から放射される音波は広い外部空間にそれぞれ拡がるた
め位相の異なる音波が合成される割合は非常に少く高音
城での音圧の低下は見られないものと思われる。また閉
口の数を７個としたのは振動板３の非鞠対称振動によっ
て生じる音圧歪を改善するためのものであり、基本的に
は奇数個の関口を有することによってこの歪を改善でき
る。さらにこの実施例では閉口形状を半径方向に延びた
放射状としているので、振動板３前面のギャップ中で生
じる径万向の共振を考慮する必要がないために設計が容
易ととなると同時に振動板３上の任意の点から各スロー
トまでの距離が各スロートに関して分散しているために
特性上の乱れが生じにくく、しかも横成が放射状の開□
のため製作が容易となる。The technical reason why the sound pressure does not deteriorate much in this high-pitched sound castle is probably that, as mentioned above, sound waves with different phases at the horn throat are not synthesized. 3 to 6, at the exit of the horn 8, the sound waves radiated from the independent entrances 101 to 107 are combined in the external space, but as mentioned above, the sound waves radiated from the independent entrances 101 to 107 are combined in the external space, but as described above, there is a narrow space such as the horn throat. Unlike when they are completely combined in space, each independent Sekiguchi 101 to 107
Since the sound waves radiated from each spread out over a wide external space, the proportion of sound waves with different phases being synthesized is extremely small, so it is thought that no decrease in sound pressure at Takaon Castle will be observed. Furthermore, the reason why the number of closed openings is set to seven is to improve the sound pressure distortion caused by the non-symmetrical vibration of the diaphragm 3, and basically, this distortion can be improved by having an odd number of closed openings. . Furthermore, in this embodiment, since the closed shape is radial extending in the radial direction, there is no need to take into account resonance in all radial directions that occurs in the gap in front of the diaphragm 3, which simplifies the design. Because the distance from any point above to each throat is dispersed for each throat, disturbances in characteristics are less likely to occur, and the lateral formation is radial opening □
This makes manufacturing easy.
第７図は閉口１０１〜１０７の他の例を示す図で、第６
図においては、相互結合部１ １の中心に近い程、その
周方向の開口幅は狭くなっているけれども、第７図のよ
うに、該開□幅は同じであってもよい。FIG. 7 is a diagram showing another example of the closures 101 to 107, and the sixth
In the figure, the opening width in the circumferential direction becomes narrower as the interconnection portion 11 approaches the center, but the opening width may be the same as shown in FIG. 7.
第８図は、一体をなす各隔壁９１〜９７及び開〇１０１
〜１０７の他の実施例を示す図で、第５図では各隔壁９
１〜９７及び開ロー０１〜１０７は何れも、音波入口１
０１ａ〜１０７ａから音波出口１０１ｂ〜１０７ｂに百
つて直線状であり、従って音軸も直線状であるが、第８
図においては各隔壁９１〜９７が相互結合部１ １を中
心にその周方向に捻った形状になっており、従って音波
入口１０１ａ〜１０７ａから音波出口１０１ｂ〜１０７
ｂに百つて各隔壁９１〜９７各閉口１０１〜１０７は非
直線状で湾曲しており、従って音軸も非直線状であり湾
曲している。FIG. 8 shows the partition walls 91 to 97 and the opening 101 that are integrated.
-107 is a diagram showing other embodiments, and in FIG. 5, each partition wall 9
1 to 97 and open rows 01 to 107 are all sound wave inlet 1.
There is a straight line from 01a to 107a to the sound wave exits 101b to 107b, and therefore the sound axis is also straight.
In the figure, each of the partition walls 91 to 97 has a twisted shape in its circumferential direction centering on the mutual coupling part 11, so that from the sound wave inlet 101a to 107a to the sound wave outlet 101b to 107.
As shown in FIG. 1B, each of the partition walls 91 to 97 and each of the closing ports 101 to 107 are non-linear and curved, and therefore the sound axis is also non-linear and curved.
このように構成すればホーンの中心軸近傍より周辺部の
方が音波の伝播距離が長くなり、ホーン関口部１０１〜
１０７における音波の同音圧、同位相面は見かけ上球面
波を構成することになり、音圧指向特性の改善ができる
。With this configuration, the propagation distance of sound waves is longer in the peripheral part than in the vicinity of the central axis of the horn, and the horn entrance part 101 to
The same sound pressure and same phase plane of the sound waves at 107 apparently constitute a spherical wave, and the sound pressure directivity characteristics can be improved.
またホーン内部の音道が長くなることにより、ホーンの
外形寸法を短くでき、軽量かつ小型化が可能でホーン材
料の節約もはかれる。Furthermore, since the sound path inside the horn is lengthened, the external dimensions of the horn can be shortened, making it possible to reduce the weight and size of the horn, and also to save on horn materials.
第９図は各隔壁９１〜９７の他の例を示す図で、第４図
、第５図、第８図では、各隔壁９１〜９７のホーン８出
口側の端面９１ｃ，９２ｃ，９３ｃ，９４ｃ，９５ｃ，
９６ｃ，９７ｃが何れも直線状であるけれども、第９図
では、該端面９１ｂ〜９７ｂは外方に突出する曲面とす
ることにより音圧特性の改善がはかれる。FIG. 9 is a diagram showing another example of each of the partition walls 91 to 97. In FIGS. ,95c,
Although 96c and 97c are both linear, in FIG. 9, the end surfaces 91b to 97b are curved surfaces that protrude outward, thereby improving the sound pressure characteristics.
なお、上言己実施例においては、各隔壁９１〜９７は注
型により一体成形したもの、及び単一金属材から削り出
したものについて例示したが、各隔壁９１〜９７を夫々
単独に製作し、これら単独に製作された隔壁９１〜９７
を相互結合部１１で相互に、接着剤を使用する等の手段
で組み立てても同機の効果を奏する。以上のべたように
この発明はホーンスピーカにおいて、振動板の前方に設
けた位相等価するための複数の開□をホーン出口側閉口
までほゞ独立して延在させているので、このホーンスピ
ーカの高音域での音圧周波数特性を顕著に改善できるも
のである。In the above embodiments, the partition walls 91 to 97 are integrally molded by casting and are machined from a single metal material. , these individually manufactured partition walls 91 to 97
Even if they are assembled together at the interconnection part 11 using adhesive or other means, the same effect can be obtained. As described above, in the horn speaker of the present invention, the plurality of openings for phase equalization provided in front of the diaphragm are extended almost independently to the horn exit side closing, so that the horn speaker is This can significantly improve the sound pressure frequency characteristics in the high frequency range.
第１図は従来のホーンスピーカの一部を示す縦断面図、
第２図は周波数−音圧しスポンスの関係を示す特性図、
第３図〜第６図はこの発明の一実施例を示す図で、第３
図は振動板近傍を示す縦断面図、第４図は全体斜視図、
第５図は隔壁の斜視図、第６図は隔壁を振動板側から見
た背面図、第７図〜第９図は夫々この発明の他の実施例
を示す図で、第７図は振動板側から見た隔壁の背面図、
第８図は他の隔壁の斜視図、第９図は更に他の隔壁をホ
ーン内に組み込んだ全体斜視図である。
図において、３は振動板、１０１，１０２，１０３，１
０４，１０５，１０６，ＩＱ７は関口、８はホーン、８
ａはホーン自体の出口側端面、９１，９２，９３，９４
，９５，９６，９７は隔壁、９１ｂ，９２ｂ，９３ｂ，
９４ｂ，９５ｂ，９６ｂ，９７ｂは隔壁の傾斜側面、９
１ｃ，９２Ｃ，９３Ｃ，９４Ｃ，９５Ｃ，９６Ｃ，９７
Ｃは各隔壁のホーン出口側の端面、１１は相互結合部で
ある。なお図中同一符号は同一又は相当部分を示す。第
１図
第２図
第３図
第４図
第５図
第６図
第７図
第８図
第９図Fig. 1 is a longitudinal sectional view showing a part of a conventional horn speaker;
Figure 2 is a characteristic diagram showing the relationship between frequency, sound pressure, and response.
Figures 3 to 6 are diagrams showing one embodiment of the present invention.
The figure is a longitudinal sectional view showing the vicinity of the diaphragm, and Figure 4 is an overall perspective view.
FIG. 5 is a perspective view of the partition wall, FIG. 6 is a rear view of the partition wall seen from the diaphragm side, and FIGS. 7 to 9 are views showing other embodiments of the present invention, and FIG. Rear view of the bulkhead seen from the board side,
FIG. 8 is a perspective view of another partition wall, and FIG. 9 is an overall perspective view of the other partition wall incorporated into the horn. In the figure, 3 is a diaphragm, 101, 102, 103, 1
04, 105, 106, IQ7 is Sekiguchi, 8 is Horn, 8
a is the exit side end surface of the horn itself, 91, 92, 93, 94
, 95, 96, 97 are partition walls, 91b, 92b, 93b,
94b, 95b, 96b, 97b are inclined side surfaces of partition walls; 9
1c, 92C, 93C, 94C, 95C, 96C, 97
C is an end face of each partition on the horn exit side, and 11 is a mutual coupling portion. Note that the same reference numerals in the figures indicate the same or equivalent parts. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9
Claims (1)
の開口を設け、これら開口をホーンの出口側開口部まで
ほぼ独立して延在させてなるホーンスピーカ。 ２ 夫々の開口の音軸と直角な面の面積がホーン出口側
の方へ漸欠大きくなつていることを特徴とする特許請求
の範囲第１項記載のホーンスピーカ。 ３ 開口の数が奇数であることを特徴とする特許請求の
範囲第１項又は第２項のホーンスピーカ。 ４ 夫々の開口の音軸と直角な面の面積がホーンの出口
側に行くに従い指数函数的に増加することを特徴とする
特許請求の範囲第２項記載のホーンスピーカ。 ５ 位相等価するためにホーン内に収納され振動板前方
のエヤーギヤツプからホーン開口部まで連続して放射状
に延びると共にホーンの周方向に配列された複数個の隔
壁を設け、これら隣り合う隔壁とホーンで形成される空
間を独立させさらにこれら隔壁間の上記エヤーギヤツプ
に対応する部分をスロートとし、しかも上記隔壁の周方
向の最大厚さを上記スロート部より上記ホーン開口部の
方を薄くすると共に、上記隔壁の径方向の厚さを上記ス
ロート部より上記ホーン開口部の方を厚くしてなるホー
ンスピーカ。 ６ 厚みの相違により形成された隔壁の傾斜側面が一方
向に傾斜していることを特徴とする特許請求の範囲第５
項に記載のホーンスピーカ。 ７ 隔壁が一体物であることを特徴とする特許請求の範
囲第５項に記載のホーンスピーカ。 ８ 隔壁が夫々独立して形成され、これら独立して形成
された隔壁を一体状に組み合せたことを特徴とする特許
請求の範囲第５項に記載のホーンスピーカ。 ９ 隔壁の音軸方向の長さをホーンの音軸方向の長さと
ほぼ同じにしたことを特徴とする特許請求の範囲第５項
に記載のホーンスピーカ。 １０ 振動板がドーム形の振動板であり、且つこのドー
ム形振動板のドーム部径よりホーンの振動板側内径が大
きいことを特徴とする特許請求の範囲第５項に記載のホ
ーンスピーカ。 １１ ホーン内空間の音軸と直角な面の面積がホーン出
口側の方へ漸欠大きくなつていることを特徴とする特許
請求の範囲第５項に記載のホーンスピーカ。 １２ ホーン内空間の音軸と直角な面の面積がホーン出
口側に行くに従い指数函数的に大きくなつていることを
特徴とする特許請求の範囲第１１項に記載のホーンスピ
ーカ。 １３ 傾斜側面が曲面であることを特徴とする特許請求
の範囲第６項に記載のホーンスピーカ。 １４ 傾斜側面が平面であることを特徴とする特許請求
の範囲第６項に記載のホーンスピーカ。 １５ ホーンと隔壁とが夫々独立して形成され、これら
独立して形成されたホーンと隔壁とをホーンにより隔壁
が囲繞されるように組み合わせてなる特許請求の範囲第
７項又は第８項に記載のホーンスピーカ。 １６ 夫々の隔壁の相互結合部が振動板と同心状をなし
ていることを特徴とする特許請求の範囲第７項又は第８
項に記載のホーンスピーカ。 １７ 相互結合部の振動板側の半径が再生周波数範囲の
上限周波数の波長の１／４以下であることを特徴とする
特許請求の範囲第１６項に記載のホーンスピーカ。 １８ 隔壁の数が奇数であることを特徴とする特許請求
の範囲第５項〜第１７項の何れかに記載のホーンスピー
カ。 １９ 隣接するスロート間の最も外側の周辺距離が再生
周波数範囲の上限周波数の波長の１／２以下であること
を特徴とする特許請求の範囲第５項〜第１８項の何れか
に記載のホーンスピーカ。[Scope of Claims] 1. A horn speaker in which a plurality of radial openings for phase equalization are provided in front of a diaphragm, and these openings extend almost independently to an exit side opening of the horn. 2. The horn speaker according to claim 1, wherein the area of the surface perpendicular to the sound axis of each opening gradually increases toward the horn exit side. 3. The horn speaker according to claim 1 or 2, wherein the number of openings is an odd number. 4. The horn speaker according to claim 2, wherein the area of the surface perpendicular to the acoustic axis of each opening increases exponentially toward the exit side of the horn. 5. In order to achieve phase equivalence, a plurality of partition walls are provided which are housed in the horn and extend continuously radially from the air gap in front of the diaphragm to the horn opening, and which are arranged in the circumferential direction of the horn. The formed space is made independent, and the portion corresponding to the air gap between these partition walls is defined as a throat, and the maximum thickness of the partition wall in the circumferential direction is made thinner at the horn opening than at the throat portion. The horn speaker has a radial thickness that is thicker at the horn opening than at the throat. 6 Claim 5, characterized in that the inclined side surface of the partition wall formed by the difference in thickness is inclined in one direction.
Horn speaker as described in section. 7. The horn speaker according to claim 5, wherein the partition wall is an integral part. 8. The horn speaker according to claim 5, wherein the partition walls are each formed independently, and these independently formed partition walls are combined into one. 9. The horn speaker according to claim 5, wherein the length of the partition wall in the sound axis direction is approximately the same as the length of the horn in the sound axis direction. 10. The horn speaker according to claim 5, wherein the diaphragm is a dome-shaped diaphragm, and the inner diameter of the horn on the diaphragm side is larger than the diameter of the dome portion of the dome-shaped diaphragm. 11. The horn speaker according to claim 5, wherein the area of the surface perpendicular to the acoustic axis of the horn interior space gradually increases toward the horn exit side. 12. The horn speaker according to claim 11, wherein the area of the surface perpendicular to the acoustic axis of the horn interior space increases exponentially toward the horn exit side. 13. The horn speaker according to claim 6, wherein the inclined side surface is a curved surface. 14. The horn speaker according to claim 6, wherein the inclined side surface is a flat surface. 15. Claim 7 or 8, wherein the horn and the partition are formed independently, and these independently formed horns and the partition are combined so that the partition is surrounded by the horn. horn speaker. 16. Claim 7 or 8, characterized in that the interconnected portions of the respective partition walls are concentric with the diaphragm.
Horn speaker as described in section. 17. The horn speaker according to claim 16, wherein the radius of the mutual coupling portion on the diaphragm side is 1/4 or less of the wavelength of the upper limit frequency of the reproduction frequency range. 18. The horn speaker according to any one of claims 5 to 17, characterized in that the number of partition walls is an odd number. 19. The horn according to any one of claims 5 to 18, characterized in that the outermost peripheral distance between adjacent throats is 1/2 or less of the wavelength of the upper limit frequency of the reproduction frequency range. speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8221778A JPS606593B2 (en) | 1978-07-06 | 1978-07-06 | horn speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8221778A JPS606593B2 (en) | 1978-07-06 | 1978-07-06 | horn speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5510217A JPS5510217A (en) | 1980-01-24 |
| JPS606593B2 true JPS606593B2 (en) | 1985-02-19 |
Family
ID=13768241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8221778A Expired JPS606593B2 (en) | 1978-07-06 | 1978-07-06 | horn speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS606593B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020003405A1 (en) | 2018-06-27 | 2020-01-02 | 三菱電機株式会社 | Air-conditioning control system |
| KR20200124898A (en) * | 2019-04-25 | 2020-11-04 | 창원대학교 산학협력단 | Hybrid type natural ventilation system |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59109998U (en) * | 1983-01-14 | 1984-07-24 | 三菱重工業株式会社 | Positioning device for ex-core neutron measuring instrument |
| GB2437125B (en) | 2006-04-13 | 2011-02-09 | Gp Acoustics | Phase plug for compression driver |
| GB2437126B (en) * | 2006-04-13 | 2011-02-09 | Gp Acoustics | Phase plug |
| FR2955445B1 (en) | 2010-01-15 | 2013-06-07 | Phl Audio | ELECTRODYNAMIC TRANSDUCER WITH DOME AND INTERNAL SUSPENSION |
| FR2955444B1 (en) | 2010-01-15 | 2012-08-03 | Phl Audio | COAXIAL SPEAKER SYSTEM WITH COMPRESSION CHAMBER |
| FR2955446B1 (en) | 2010-01-15 | 2015-06-05 | Phl Audio | ELECTRODYNAMIC TRANSDUCER WITH DOME AND FLOATING SUSPENSION |
| TW201410037A (en) * | 2012-08-30 | 2014-03-01 | Jazz Hipster Corp | Horn-type speaker |
| JP5915572B2 (en) * | 2013-03-15 | 2016-05-11 | ヤマハ株式会社 | Bass reflex port and tube |
| CN105101018B (en) * | 2014-05-23 | 2018-10-26 | 苏新平 | A kind of bugle system to amplify |
-
1978
- 1978-07-06 JP JP8221778A patent/JPS606593B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020003405A1 (en) | 2018-06-27 | 2020-01-02 | 三菱電機株式会社 | Air-conditioning control system |
| KR20200124898A (en) * | 2019-04-25 | 2020-11-04 | 창원대학교 산학협력단 | Hybrid type natural ventilation system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5510217A (en) | 1980-01-24 |
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