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Compression driver and phasing plug assembly therefor

A driver and phase modulation technology used in sensors, microphones, amplifiers, etc.

Active Publication Date: 2020-08-25
HARMAN INT IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The downside of radial channels is that they only work well if their length is less than the wavelength of the sound signal

Method used

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  • Compression driver and phasing plug assembly therefor
  • Compression driver and phasing plug assembly therefor
  • Compression driver and phasing plug assembly therefor

Examples

Experimental program
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Embodiment Construction

[0029] As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0030] first reference figure 1 , figure 2 with Figure 16 , the compression driver 10 according to an embodiment may include a magnet assembly 20 which may include an annular permanent magnet 22 disposed between an annular top plate 24 and a back plate 26 comprising a centrally disposed cylindrical or annular pole piece 28. Magnet assembly 20 provides a permanent magnetic field in...

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Abstract

A compression driver comprising: a phasing plug having a base portion with a first side and an opposing second side; and a hub portion extending outwardly from the first side along a central axis , the hub portion includes an outer surface. The base portion includes a plurality of holes extending therethrough from the first side to the second side, the holes being generally circumferentially disposed about the central axis and generally parallel to the Outer surface orientation. A diaphragm is disposed adjacent to the second side of the phasing plug, and a compression chamber is defined between the diaphragm and the phasing plug. a housing positioned on the first side of the phasing plug, the housing having a central bore generally aligned with the hub portion and forming an outlet of the compression driver, the housing having a central bore aligned with the hub portion The outer surface forms the inner surface of the waveguide.

Description

technical field [0001] Embodiments relate to compression drivers and phasing plug assemblies therefor. Background technique [0002] There are two main types of compression drivers, the first utilizing domed diaphragms and the other using annular flex diaphragms. Most modern annular diaphragms are made of polymer membranes. The advantage of an annular diaphragm is that the radial dimension of the moving part of the diaphragm is smaller compared to a dome diaphragm with a moving voice coil of the same diameter. The small radial clamping size of the annular diaphragm shifts the mechanically split resonances of the diaphragm to higher frequencies where the mechanically split resonances can be better mechanically damped because in the polymer membrane damping occurs at high frequencies Down is more effective. Better damping indicates a smoother frequency response at high frequencies and less nonlinear distortion from splitting of the diaphragm. [0003] In a compression driv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/30
CPCH04R1/30H04R9/066H04R2201/34
Inventor A.沃伊什维洛
Owner HARMAN INT IND INC