RU2282316C1 - Loudspeaker with controllable resonances - Google Patents

Abstract

FIELD: acoustics and sound reproduction technologies.

SUBSTANCE: loudspeaker with controllable resonances, in which to opposite walls of body, or to magnet of loudspeaker speaker, a brick of resonance wood is tightly connected with a selected set of resonances, by means of which redistribution of energy occurs from native oscillations of body walls and of speaker to consonance.

EFFECT: increased sounding quality of acoustic systems.

3 dwg

Description

The invention relates to the field of acoustics and sound reproduction, aimed at improving the sound quality of speaker systems.

Known loudspeaker with a natural resonator, which uses the resonance of a string instrument, such as a violin, viola, cello, double bass or acoustic guitar, which allows you to receive an audio sterosignal. The device has a housing in the form of numbers 8, having at least one hole on the front surface [1].

In addition, a loudspeaker with a resonant panel is known in which the arrangement of the voice coil in the annular gap is provided with an elastic suspension, the loudspeaker head is a mid- and high-frequency head, the frame element is a housing that, together with the panel-shaped element, forms a sealed casing, the panel-shaped element is adapted for resonance with the generation of an acoustic output signal, and the coil is attached to a panel-shaped element near its geometric center [2].

The listed speaker designs are inconvenient to manufacture, because it is necessary to use a lot of high-quality resonant material; quite sophisticated tuning technologies, in addition, the possibilities in the manufacture of speakers of different sizes and shapes are limited.

An object of the present invention is to improve the sound quality of a conventional speaker without substantially changing its design. In this case, a bar made of resonant wood, which is used for the manufacture of musical instruments, is closely connected inside the loudspeaker either to the walls of the loudspeaker body, or from the side of the speaker magnet.

The essence of the proposed technical solution lies in the fact that a bar made of resonant wood, for example from cedar, spruce, maple, birch, etc., is attached closely inside the loudspeaker either to the opposite walls of the loudspeaker body or to the speaker magnet. The resonances of the bar are selected in such a way that the energy of the body's own vibrations and the speaker dynamics is redistributed into controlled vibrations, the frequencies of which are perceived by the human ear as consonant, improving the sound quality of the speaker.

The novelty of the element is that the resonances in the loudspeaker are controlled by a resonant wood bar with specially selected resonances, which is closely connected inside the loudspeaker to the opposite walls of the loudspeaker body or to the magnet of the loudspeaker speaker. A new set of essential features has arisen, namely: a resonant wood block, closely connected inside the loudspeaker to opposite walls of the loudspeaker casing or to the magnet of the loudspeaker loudspeaker, redistributes the vibrational energy of the walls of the casing and loudspeaker loudspeakers into consonant ones, which improve the sound reproduction of the loudspeaker.

Figure 1 shows the tight connection of a bar of resonant wood between the opposite walls of the loudspeaker.

Figure 2 is a variant of the dense connection of a bar of resonant wood to the magnet of the speaker and the wall of the speaker.

Figure 3 is a variant of the dense connection of a bar of resonant wood to the magnet speaker loudspeaker.

A resonant wood block (1) with specially selected resonances is tightly installed inside the loudspeaker to the opposite walls (3, 4) of the body of FIG. 1, or is installed inside the loudspeaker to the speaker magnet (2) and the wall (3) of the loudspeaker body of FIG. 2, or figure 3 - is installed inside the loudspeaker to the magnet (2) of the loudspeaker speaker. The walls of the speaker housing (3, 4) can be: opposite side walls; front and back; top and bottom inside the speaker. A resonant wood block (1) can be closely attached to the walls of the speaker housing perpendicularly or at an angle. A block of resonant wood (1) will be closely connected to the magnet (2) of the speaker of the speaker by, for example, gluing figure 3. The vibrations emitted by the speaker housing and the speaker of the speaker are spurious, usually impairing sound quality. The proposed loudspeaker design allows you to redistribute the energy of natural vibrations of the loudspeaker body and speaker into consonant ones, which qualitatively improve the sound reproduction of the loudspeaker.

The proposed speaker design is technologically easy to implement, low-cost.

Information sources

1. French patent No. 2739997 from 10.10.1996, "Loudspeaker with a natural resonator"; H 04 R 1/28; patent holder: KIM YOUNG AHN; publ. 04/18/1997.

2. Application of Russia 20001108571 from 10/13/1998; H 04 R 1/00; patent holder: New Transducers Limited.

Claims (1)

A loudspeaker with controlled resonances, characterized in that inside the loudspeaker a resonant wood block with a selected set of resonances is closely connected to opposite walls of the body or to the magnet of the loudspeaker speaker, with the help of which redistribution of energy of natural vibrations of the walls of the body and the speaker into consonants is made.

Images