JPS60163598A - Linear drive speaker - Google Patents

Abstract

PURPOSE:To eliminate physical losses caused by a dumper and, lightening limits of a diaphragm and to improve a transient characteristic by driving a vibration member by electromagnetic force generated from a diaphragm of a speaker and that from a magnet or a coil opposite to the diaphragm. CONSTITUTION:A vibration member 1 is driven by electromagnetic force generated from a drive plate 2 of a linear drive speaker, that generated from magnets 3 and 4 facing the drive plate 2 or coils 5 and 6, or electromagnetic force generated from said materials. The titled device designed in such a way is operated by passing an arbitrary current to the coils 5 and 6 from a DC power source device 7. A sound signal is inputted to a coil control computer 8, the device 7 is controlled, a current is conducted in the coils 5 and 6 and the titled device is operated. Then a physical transmission loss caused by a dumper and limits of lightening a vibration member 1 are eliminated and a transient characteristic is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker drive system. Conventional dynamic type speakers drive the vibrating material with a coil wound around a coil bobbin, which results in (A) physical transmission loss due to the damper and (B) limitations in reducing the weight of the vibrating material. For the reasons mentioned above, it has become difficult to respond to the latest advanced electronic devices.

The present invention was conceived to eliminate these drawbacks, and its structure can be explained with reference to the drawings as follows: (a) Vibration material (1)
Fix the conductor (2) to the

(b) Magnets (3) (4) or coils (5) (6) are held in position parallel to the conductor (2).

(c) Magnets (3) and (4) have the same polarity on the left and right sides in the drawing. Further, the coils (5) and (6) are connected to the DC power supply device (7) so that they have the same magnetic poles on the left and right sides of the drawing, respectively.

(d) A sound current is passed through the conductor (2) in the front-back direction on the drawing.

The present invention has the above structure.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 3 shows the first embodiment of FIG. coil(
5) Flow any current from the DC power supply device (7) to (6) to activate it. FIG. 4 shows a second embodiment of FIG. The audio current is input to the coil control computer (8) to control (7) and cause current to flow through the coils (5) and (6) to operate them.

The above configuration provides the following effects.

(A') Vibrating material positioning material with smaller damping force (9
) (10) allows movement, reducing physical loss. (
B') Transient characteristics are improved because the weight of the vibration system can be reduced. Due to the above effects, it becomes possible to correspond to recent excellent electronic devices.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the present invention, FIG. 2 is a layout diagram of the present invention, FIG. 3 is a block diagram of the first embodiment of FIG. 2, and FIG. 4 is a second embodiment of the invention. The block diagram of (1) is the vibration material, (
2) is a conductor, (3) and (4) are magnets, (5) and (6) are coils, (7) is a DC power supply, (8) is a coil control computer, and (9) and (10) are vibrating materials that maintain their localization. Material. Patent applicant Yoshifumi Yamaguchi

Claims (1)

[Claims] The electromagnetic force generated from the speaker drive plate (2) and (2)
Magnets (3) (4) or coils (5) (6) facing
Drive of vibrating material by magnetic force or electromagnetic force generated from