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Speaker, speaker diaphragm suspension

A vibrating plate and loudspeaker technology, which is applied in the field of loudspeaker, high-fidelity loudspeaker, loudspeaker vibrating plate and suspension, can solve the problems of lowering the fidelity of reproduced sound and low rigidity, achieve inherent resonance suppression, and solve the problem of surface resonance Effect

Inactive Publication Date: 2008-10-22
BEAM TECH KULERU HACHIOJI 1109
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the conventional flat-panel diaphragm 31 cannot have sufficiently high rigidity and suffers from low-frequency resonance and lowers the fidelity of the reproduced sound

Method used

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  • Speaker, speaker diaphragm suspension
  • Speaker, speaker diaphragm suspension
  • Speaker, speaker diaphragm suspension

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Embodiment Construction

[0046] refer to Figure 1 to Figure 3 Embodiments of the present invention will be described. figure 1 Perspective view of the vibration system for the speaker. It includes a vibrating plate 1 , a driving part 6 and a suspension 7 . Z represents the vibration direction. The left side of the figure is the front, and the right side is the rear. For ease of understanding, one of the filling member 3 and the driving portion 6 is shown in a state separated from the member to which it is fastened.

[0047] figure 1 Among them, 1 represents a disc-shaped vibrating plate. The diameter is chosen to be eg 120 mm and the thickness eg 20 mm. Since this vibrating plate 1 has a small specific gravity, even if it is made to this thickness, the mass will not become too large.

[0048] 2 is a frame part. It consists of a number of flat plate parts of the same shape. In this embodiment there are six plate parts. All plate members are arranged at substantially equal angular intervals...

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Abstract

The diaphragm of a high fidelity speaker is constituted of framework members, and a member filling between the framework members. The framework member is a flat plate, and all framework members are arranged radially outward from the center of the diaphragm in parallel with the vibrating direction and bonded to each other in the radial center and then bonded to a drive section. The framework member has high rigidity. The filling member is composed of a foamed body. The diaphragm has no skin and thereby has no resonance problem. Sound is radiated from the filling member. A suspension has rod-like members arranged in a line and bonded to the opposite ends of a first leaf spring, wherein second leaf springs are bonded to the opposite ends of the rod-like members at right angles thereto, and the ends of the second leaf springs are bonded to unmovable portions of the speaker. Intrinsic resonance occurring in the suspension is very small and displacement is small in directions other than the vibrating direction. An edgeless flat plate speaker system reproducing a sound with high fidelity with no impact of intrinsic resonance can be constituted using this invention.

Description

technical field [0001] The present invention relates to a loudspeaker, a loudspeaker diaphragm and a suspension, and in particular to a high-fidelity loudspeaker capable of reproducing high-fidelity sound, and a diaphragm and a suspension suitable for realizing a loudspeaker having this performance. Background technique [0002] A typical embodiment of a conventional loudspeaker is called a "cone loudspeaker". It has a conical vibrating plate. Since the sound-emitting surface is not a flat surface but is conical, the frequency characteristic or the phase characteristic of the sound emitted therefrom is disturbed. In order to eliminate this drawback, such as the embodiment shown in Patent Document 1, it has been proposed to use a flat vibration plate having a planar shape. [0003] Further, the outer periphery of the conventional flat vibration plate is supported by what is called a "rim". The edges are made of elastic material so they tend to resonate. This natural reson...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/06H04R7/16H04R9/02
CPCH04R2207/021H04R2307/029H04R9/06H04R2307/027H04R7/06H04R7/14H04R9/045H04R7/26
Inventor 菅沼忠雄
Owner BEAM TECH KULERU HACHIOJI 1109
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