Phasing plug
AssigneeHarman International Industries, Incorporated
InventorAlexander Voishvillo
Life of this patent
Estimating the term…
Abstract
A phasing plug for a compression driver includes a base portion and a hub portion. The base portion includes a first side, a second side, and a plurality of apertures extending between the first and second sides. The hub portion extends from the base portion along an axis. A plurality of channels formed on the second side of the base portion, each channel extending from the hub portion to a corresponding one of a plurality of apertures extending between the first and second sides, the apertures formed to define lines cutting diagonally across the annular section.
Claims17
A phasing plug for a compression driver, comprising:
- a base portion including a first side and a second side, and an annular section defined on the first side by a first circumference and a second smaller circumference, the first and second circumferences having a common center in the base portion, where the annular section substantially overlays an annular diaphragm in an assembled compression driver;
- a hub portion extending from the second side of the base portion substantially perpendicularly along an axis at the common center on the base portion;
- a plurality of channels formed on the second side of the base portion, each channel extending from the hub portion to a corresponding one of a plurality of apertures defined by an open area extending between the first and second sides, the apertures formed to define lines cutting diagonally across the annular section.
A compression driver comprising:
- an annular diaphragm;
- at least one suspension member for supporting the annular diaphragm while enabling the annular diaphragm to oscillate;
- a voice coil attached to the annular diaphragm for actuating the annular diaphragm in the presence of a magnetic field;
- a phasing plug comprising:
- a base portion including a first side and a second side, and an annular section defined on the first side by a first circumference and a second smaller circumference, the first and second circumferences having a common center in the base portion, where the annular section substantially overlays the annular diaphragm;
- a hub portion extending from the second side of the base portion substantially perpendicularly along an axis at the common center on the base portion;
- a plurality of channels formed on the second side of the base portion, each channel extending from the hub portion to a corresponding one of a plurality of apertures extending between the first and second sides, the apertures formed to define lines cutting diagonally across the annular section;
- the annular diaphragm being placed in substantial alignment with the annular section of the phasing plug;
- and
- a housing positioned on the second side of the base portion, the housing having an interior surface to enclose the hub portion so as to form a waveguide with the exterior surface of the hub portion.
Dependencies are inferred from the claim text.