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CN-122003878-A - System for loudspeaker

CN122003878ACN 122003878 ACN122003878 ACN 122003878ACN-122003878-A

Abstract

A system is provided for a speaker. In one example, the speaker includes a plurality of speakers arranged at unique angles to increase the coverage of the speaker. The plurality of horns may each include a contoured surface extending from the inlet to the mouth.

Inventors

  • LU GUOCHAO
  • JIANG CHENG
  • JIANG YU

Assignees

  • 哈曼国际工业有限公司

Dates

Publication Date
20260508
Application Date
20240226
Priority Date
20230829

Claims (15)

  1. 1. A speaker, comprising: A plurality of horns arranged at different angles, wherein each of the plurality of horns comprises: An inlet disposed at the first axial end and configured to receive a driver; a mouth disposed at a second axial end opposite the first axial end, and A contoured surface between the inlet and the mouth, wherein the contoured surface of each of the plurality of horns curves and extends in a respective unique direction.
  2. 2. The loudspeaker of claim 1, wherein the plurality of speakers includes a first speaker, a second speaker, and a third speaker.
  3. 3. The speaker of claim 2, wherein each of the first, second, and third speakers face a different direction.
  4. 4. The speaker of claim 2, wherein the first horn is disposed between the second horn and the third horn.
  5. 5. The speaker of claim 2, wherein sound emitted from the first horn overlaps sound emitted from the second and third horns.
  6. 6. The speaker of claim 1, wherein the speaker is symmetrical.
  7. 7. The speaker of claim 1, wherein a mouth of each of the plurality of horns is parallel or angled to a vertical plane.
  8. 8. A speaker, comprising: A first horn facing in a first direction; a second horn facing a second direction that is angled from the first direction; a third horn facing a third direction at an angle to each of the first direction and the second direction, wherein each of the plurality of horns comprises: An inlet disposed at the first axial end and configured to receive a driver; a mouth disposed at a second axial end opposite the first axial end, and A contoured surface between the inlet and the mouth, wherein the contoured surface of each of the plurality of horns curves and extends in an associated direction.
  9. 9. The speaker of claim 8 wherein the contoured surface of the second horn comprises a plurality of walls including a first wall, a second wall, a third wall, and a fourth wall, wherein the first wall and the third wall curve away from each other from the inlet to the mouth of the second horn, and wherein the second wall and the fourth wall are disposed between the first wall and the third wall, and wherein the second wall curves less as it extends from the inlet to the mouth.
  10. 10. The speaker of claim 8, wherein the second horn comprises a horizontal plane and a vertical plane, the vertical plane being perpendicular to the horizontal plane, and wherein a first pair of guide lines extending perpendicular to the vertical plane shape the first wall and the third wall, and a second pair of guide lines extending perpendicular to the horizontal plane shape the second wall and the fourth wall, and wherein the vertical plane is symmetrical and the horizontal plane is asymmetrical.
  11. 11. The speaker of claim 8 wherein the contoured surface of the third horn comprises a plurality of walls including a first wall, a second wall, a third wall, and a fourth wall, wherein the first wall and the third wall curve away from each other from the inlet of the second horn to the mouth, and wherein the second wall and the fourth wall are disposed between the first wall and the third wall, and wherein the second wall curves less as it extends from the inlet to the mouth.
  12. 12. The speaker of claim 11, wherein the mouth of the third horn comprises a pentagonal shape, wherein a square portion of the mouth is shaped by the first wall, the second wall, and the third wall, and wherein a triangular portion of the mouth is shaped by the first wall, the third wall, and the fourth wall.
  13. 13. The speaker of claim 12 wherein a curvature of the mouth shaped by the fourth wall is greater than any other curvature of the mouth.
  14. 14. The speaker of claim 8, wherein the second horn emits a main lobe of sound that propagates in the second direction, and wherein the second horn emits side lobes of sound that propagate in the third direction and overlap the lobes of sound of the first horn.
  15. 15. The speaker of claim 8, wherein the third horn emits a main lobe of sound that propagates in the third direction, and wherein the third horn emits side lobes of sound that propagate in the second direction and overlap with the lobes of sound of the first horn.

Description

System for loudspeaker Cross Reference to Related Applications The present application claims priority from PCT patent application number PCT/CN2023/115524 filed on day 2023, 8 and 29 entitled "system for speakers". The entire contents of the above-listed applications are hereby incorporated by reference for all purposes. Technical Field The present disclosure relates to speakers, and more particularly to acoustic horns or waveguides for use in speakers. Background Typically, a speaker includes a drive unit coupled to a horn. The large end of the horn, known as the "mouth", typically has an area large enough to radiate sound efficiently at the desired low frequency. The small end of the horn, called the "throat", has an area that is selected to match the acoustic impedance and exit diameter of the drive unit and reduce distortion of the acoustic signal. The speaker horn directs acoustic signals or energy into a particular direction or region. The speaker horn surface that confines and controls the radiation of acoustic energy is commonly referred to as an acoustic waveguide. The surface of the acoustic waveguide in the speaker typically produces a coverage pattern that can vary horizontally and vertically for a given total coverage angle. The coverage angle is the total angle on any viewing plane (although horizontal and vertical orthogonal planes are typically used). The coverage angle is estimated from frequency and is defined as the angle at which the sound intensity or Sound Pressure Level (SPL) is half of the SPL on-axis (the reference axis is generally perpendicular to the throat of the driver). Disclosure of Invention The present disclosure provides support for a speaker that includes a plurality of speakers arranged at different angles. Each of the plurality of horns includes an inlet disposed at a first axial end and configured to receive a driver, a mouth disposed at a second axial end opposite the first axial end, and a contoured surface between the inlet and the mouth, wherein the contoured surface of each of the plurality of horns curves and extends in a respective unique direction. It should be understood that the foregoing summary is provided to introduce in simplified form a selection of concepts that are further described in the detailed description. This is not intended to identify key or essential features of the claimed subject matter, the scope of which is defined uniquely by the claims that follow the detailed description. Furthermore, the claimed subject matter is not limited to implementations that solve any disadvantages noted above or in any part of this disclosure. Drawings The disclosure may be better understood by reading the following description of non-limiting embodiments with reference to the accompanying drawings, in which: Fig. 1 shows a view of a speaker according to an embodiment of the present disclosure; Fig. 2A and 2B illustrate a first horn of a speaker according to an embodiment of the present disclosure; fig. 3A, 3B, 3C and 3D illustrate different views of a second speaker of a speaker according to an embodiment of the present disclosure, and Fig. 4A, 4B, 4C, and 4D illustrate different views of a third speaker of a speaker according to embodiments of the present disclosure. Fig. 5A and 5B illustrate example guidewires for configuring the second horn and the third side horn. Fig. 6 shows an example of a side horn, which may be a non-limiting example of a second horn and a third horn. Fig. 7A and 7B show the directivity of the side horn in the horizontal direction. Fig. 8 shows the directivity of the side horn in a speaker including a center horn and side horns. Fig. 9A and 9B show the directivity of the side horn in the vertical direction. Detailed Description The present disclosure provides support for a speaker that includes a plurality of speakers. The speaker may include a horn or waveguide that may define a coverage pattern of the speaker in one or more planes. The horn or waveguide may include an inlet that may be positioned at a first axial end of the horn or waveguide. The inlet may be positioned on an inlet plane perpendicular to the longitudinal axis of the horn or waveguide. The longitudinal axis may be a line perpendicular to the inlet plane and intersecting the inlet plane at the inlet center. The horn or waveguide may be symmetrical about the longitudinal axis or asymmetrical about the longitudinal axis. The inlet may be configured to receive a drive. The horn or waveguide may comprise a mouth disposed at a second axial end of the horn or waveguide opposite the inlet. The horn or waveguide may comprise a contoured surface extending between the inlet and the mouth. The contoured surface may be an inner surface defining a cavity within the horn or waveguide. The contoured surface may comprise, for example, a frustoconical surface or a plurality of walls arranged relative to one another to form a cavity. The horn or waveguide may comprise a throat extend