JPH01151695U

JPH01151695U -

Info

Publication number: JPH01151695U
Application number: JP4825088U
Authority: JP
Priority date: 1988-04-12
Filing date: 1988-04-12
Publication date: 1989-10-19

Description

[Brief explanation of the drawing]

第１図および第２図は、この考案に係る低音域
再生用スピーカシステムの実施例を示すもので、
第１図は断面側面図、第２図は周波数特性図であ
る。第３図は従来の低音域再生用スピーカシステ
ムを示す断面側面図、第４図Ａ〜Ｃは第３図の従
来例の周波数特性図である。主要部分の符号の説明、１：箱体、Ｖ１：共鳴
室、２：ポート、３：スピーカユニツト、４：連
通穴、５：カバー、６：吸音部材。 FIG. 1 and FIG. 2 show an embodiment of the speaker system for bass reproduction according to this invention.
FIG. 1 is a cross-sectional side view, and FIG. 2 is a frequency characteristic diagram. FIG. 3 is a cross-sectional side view showing a conventional speaker system for reproducing bass frequencies, and FIGS. 4A to 4C are frequency characteristic diagrams of the conventional example shown in FIG. Explanation of symbols of main parts: 1: box, V1: resonance chamber, 2: port, 3: speaker unit, 4: communication hole, 5: cover, 6: sound absorbing member.

Claims

[Scope of Claim for Utility Model Registration] 1. In a speaker system for reproducing low frequency sounds consisting of a speaker unit consisting of a magnetic circuit, a frame, and a vibration system, and a box body having a resonance chamber that resonates with sound waves emitted from the speaker unit. , in the yoke part of the magnetic circuit of the speaker unit.
A speaker system for bass reproduction characterized by providing a communication hole connecting a resonance chamber and an external space, and configuring this communication hole as a port for resonance. 2. A box body having a resonance chamber and provided with a port that constitutes the resonance chamber and a Helmholtz resonator, a speaker unit attached to the opening of the port of this box body, and a yoke portion of a magnetic circuit of this speaker unit. A low-temperature resonator characterized in that a communication hole is provided to connect the resonance chamber and the external space, and two Helmholtz resonators are configured by the volume of the port and the resonance chamber, and the communication hole of the yoke part and the volume of the resonance chamber. Speaker system for range reproduction. 3. The speaker system for bass reproduction according to claim 2, wherein the length of the port of the box body and the length of the communication hole of the yoke portion are formed to be different from each other. 4 Connect the port on the box and the communication hole on the yoke,
Claim 2 characterized in that they are arranged on the same axis.
, or the speaker system for bass reproduction according to 3. 5 A cover that covers the entire sound emitting side of the speaker unit and forms a sealed space between it and the box body, and a cover that is attached to this cover and cuts off the high-frequency components of the sound waves emitted from the speaker unit to the outside space. 5. The speaker system for reproducing low frequency ranges according to claim 1, further comprising a sound absorbing member for emitting sound.