KR20070105229A - Double one-dimension loudspeaker - Google Patents

Abstract

A bi-layered one-dimensional loud speaker is provided to remove a seam on a diaphragm plane by using a single diaphragm as a vibration body. In constructing two bobbins(a-2,a-3) in a single diaphragm extended by a tensile body, a point of zero displacement in elastic deformation toward a vertical direction on the plane of the diaphragm is set as restposition in a bobbin to be bonded to the center. The bobbin except the bobbin to be bonded to the center is connected to the tensile body connected to a damper(a-5), and an extended single film is vibrated by two bobbins connected with each other.

Description

Double-Dimensional Loudspeaker {double one-dimension loudspeaker}

1 is a longitudinal cross-sectional view of the present invention.

2 is a front view of the present invention

* Explanation of symbols for main parts of the drawings

a-1: vibrating membrane

a-2: 1st bobbin

a-3: 2nd bobbin

a-4: ring-shaped tension body

a-5: damper

a-6: frame

a-7: power carrier connecting a-4 and a-3

a-8: magnetic circuit part

The present invention relates to a loudspeaker, and more particularly, to a loudspeaker capable of efficiently outputting a low range on the entire membrane surface and a high range on the central portion by connecting two bobbins to one vibrating membrane. will be.

When multiple speakers are placed on one baffle surface, the center axis of the sound is inconsistent and interference occurs in the sound. If the audible band is divided into a dividing network and rings, the band-to-band connection is not smooth.

The full-range speaker is designed to eliminate the distortion caused by placing the woofer, middle, and tweet separately for convenience, and each unit generates high and low sound in one unit as if a violin generates high and low sound sources in one instrument box. This solves the interference problem in the wavelength transmission process in which the unit is separately arranged.

The full-range speakers are classified into full-range speakers consisting of one speaker and coaxial full-range speakers in which two or more speakers coincide with each other.

However, coaxial full-range speakers with the center axis aligned with the sound cannot avoid the reflection, refraction, diffraction, and interference of the sound at the connection area between the speakers. It has a narrow characteristic.

The present invention is to solve the problems of the prior art as described above by using a single vibrating membrane as a vibrating body to provide a loudspeaker that eliminates seams on the vibration surface and there is no discrepancy in the connection between the bands without using a dividing network. The purpose. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The first (a-2) and 2 (a-3) bobbins are formed on the vibrating membrane (a-1) which is tension-fixed by the tensioning body (a-4) and elastically deforms perpendicularly to the surface thereof as shown in the drawing. . The movement of the second bobbin (a-3) is connected to the tension body (a-4) via the force carrier (a-7) and secured the restposition by the damper (a-5). The movement of the first bobbin (a-2) is attached to the center of the vibration membrane (a-1), and the restposition of the movement of the first bobbin (a-2) is restored to the displacement caused by the elastic deformation of the vibration membrane vertically. It is done. The same voice current is connected to the voice coils of the first (a-2) and 2 (a-3) bobbins so that there is no phase difference with respect to the electrical signal received by each voice coil.

In low-range regeneration, the second bobbin (a-3) connected to the tension body (a-4) and the first bobbin (a-2) attached to the center vibrate the vibrating membrane (a-1) and the equilibrium of the membrane. The tension present helps to equilibrate the membrane during vibration.

In high-range regeneration, the elastic deformation protrudes on the vertical of the membrane a-1 due to the motion of the first bobbin (a-2). Since it is larger than the diameter and always smaller than the diameter up to the point where the membrane and the tension member (a-4) contact each other, the portion to vibrate is smaller than the second bobbin (a-3) to vibrate the entire surface of the membrane (a-1). It is effective for treble reproduction.

In the present invention, the magnetic circuit portion a-8 is a ring magnet, and in order to form a magnetic force in the voice coil of the bobbin, one bobbin a-2 is provided inside the ring magnet, and two bobbins a- outside. 3) Install. The inner central pole piece can be replaced with a magnet to increase the magnetic field effect on the first bobbin (a-2) voice coil, and the second bobbin (a-3) voice coil is also used to increase the magnetic field effect. A ring magnet can be added on the outside.

Referring to the effects of the present invention configured as described above are as follows.

By installing two bobbins in a single vibrating membrane, it is possible to eliminate the cause of reflection, refraction, diffraction and interference between the sound transmission medium (the air adjacent to the vibrating body) and the vibrating body. By not using a ding network, it is possible to eliminate the cause of discontinuity between transliterations.

Claims (2)

In constructing two bobbins in a single vibrating membrane tensioned by a tension body, In particular, the loudspeaker, characterized in that the rest position in the bobbin to be bonded to the center of the elastic deformation in the direction perpendicular to the plane of the diaphragm is zero displacement. The method of claim 1, A bobbin other than a bobbin bonded at the center is connected to a tensioner connected to a damper so that a single tensioned film is vibrated by two connected bobbins.

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