JPH03109492U

JPH03109492U -

Info

Publication number: JPH03109492U
Application number: JP1735590U
Authority: JP
Priority date: 1990-02-26
Filing date: 1990-02-26
Publication date: 1991-11-11

Description

[Brief explanation of drawings]

第１図は本考案の原理構成を示す図、第２図は
本考案の第１の実施例に係る音響フイルタ部を備
える位相反転形スピーカを示す斜視図、第３図は
第２図のＡ−Ａ′断面図、第４図は本考案の第１
の実施例に係る音響フイルタ部の構造を示す図、
第５図は本考案の第２の実施例に係る音響フイル
タ部を備える位相反転形スピーカを示す斜視図、
第６図は本考案の第２の実施例に係る音響フイル
タ部の構造を示す図、第７図は従来の位相反転形
スピーカの第１の例を示す斜視図、第８図は従来
の位相反転形スピーカの第２の例を示す斜視図で
ある。図において、１……スピーカ、２……エンクロ
ージヤ、３……ポート、音響フイルタ、４……空
胴部、５，５′……短管。 FIG. 1 is a diagram showing the principle configuration of the present invention, FIG. 2 is a perspective view showing a phase inversion type speaker equipped with an acoustic filter section according to the first embodiment of the present invention, and FIG. 3 is a diagram showing the A of FIG. 2. -A' sectional view, Figure 4 is the first part of the present invention.
A diagram showing the structure of an acoustic filter section according to an embodiment of
FIG. 5 is a perspective view showing a phase inversion type speaker equipped with an acoustic filter section according to a second embodiment of the present invention;
FIG. 6 is a diagram showing the structure of an acoustic filter section according to a second embodiment of the present invention, FIG. 7 is a perspective view showing a first example of a conventional phase-inverting speaker, and FIG. 8 is a diagram showing a conventional phase-inverting speaker. FIG. 7 is a perspective view showing a second example of an inverted speaker. In the figure, 1... Speaker, 2... Enclosure, 3... Port, acoustic filter, 4... Cavity, 5, 5'... Short tube.

Claims

[Claims for Utility Model Registration] The first short pipe is provided inside an enclosure 2 and includes a first short pipe 5 fixed to the enclosure 2 and a second short pipe 5' which is a free end. In a phase inversion type speaker, an acoustic filter section 3 having a cavity 4 therein between a tube 5 and a second short tube 5' is provided inside an enclosure 2 on the same surface as the speaker 1, wherein the acoustic filter section Reference numeral 3 denotes a phase inversion type speaker whose side surface is fixed to the enclosure 2.