Standing wave elimination device, sound box and sound box transformation method

A standing wave and speaker technology, applied in the direction of frequency/direction characteristic devices, loudspeakers, transducer shells/cabinets/brackets, etc., can solve the problems of inconvenient modification, weakening mirror reflection, etc., achieve simple structure and improve sound quality , Improve the effect of practicality and fun

Pending Publication Date: 2021-02-05
QILU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As far as the speaker is concerned, in addition to a pair of good woofers, the methods to eliminate the standing wave of the cabinet include rationally designing the cabinet size (the geometric size cannot be an integer multiple), adding sound-absorbing materials, and using a concave-convex structure inside the cabinet to weaken the mirror surface. Reflection, the use of non-parallel cabinet structure, reasonable inverter tube hole or resonance cavity design, etc., but the above measures except for adding sound-absorbing materials, the rest are finalized from the design and manufacture of the speaker. Standing wave interference has appeared, and it is inconvenient to carry out transformation. Therefore, it is of great theoretical significance and practical application value to develop an efficient, feasible, and simple transformation device and transformation method that eliminates standing waves and improves the sound quality of speakers.

Method used

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  • Standing wave elimination device, sound box and sound box transformation method
  • Standing wave elimination device, sound box and sound box transformation method
  • Standing wave elimination device, sound box and sound box transformation method

Examples

Experimental program
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Embodiment 2

[0041] This embodiment discloses a standing wave elimination device, such as figure 2As shown, it includes a transparent plate, the transparent plate adopts an acrylic plate 8, the four corners of the acrylic plate are provided with mounting holes 9, the acrylic plate can be fixedly connected with the top plate of the sound box through the mounting holes and fixing bolts, and the acrylic plate Covers the rectangular opening made in the top plate of the speaker.

[0042] The central part of the acrylic plate is connected to one end of the wire by a rivet 10, and the other end of the wire is connected to the metal foil by a rivet.

[0043] In this embodiment, the wire is copper wire 11, the metal foil is a rectangular copper foil 12, and a plurality of sound-absorbing particles are placed on the upper surface of the copper foil, and the sound-absorbing particles are made of resin microspheres or wood wool. Microspheres or sound-absorbing cotton balls, sound-absorbing particles...

Embodiment 3

[0048] This embodiment discloses a sound box, including a sound box body 13, an opening is provided at the top plate 14 of the sound box body, and the standing wave elimination device described in Embodiment 1 or Embodiment 2 is installed at the opening, such as Figure 5 As shown, when the standing wave elimination device described in Embodiment 1 is installed, the opening is a circular opening, such as Image 6 As shown, when the standing wave elimination device described in Embodiment 2 is installed, the opening is a rectangular opening. Other structures of the sound box body adopt the structure of the existing sound box, and will not be described in detail here.

Embodiment 4

[0050] This embodiment discloses a method for modifying a sound box, using the standing wave elimination device described in Embodiment 1 to modify the sound box, including the following steps:

[0051] According to the size of the top plate of the speaker, under the condition of retaining the edge, a circular opening is opened on the top plate, and the original sound-absorbing material on the inner wall of the top plate of the speaker is removed.

[0052] Install a silicone edge sleeve on the outer peripheral surface of the toughened glass so that the overall size of the toughened glass can be snapped into the opening on the top plate of the sound box.

[0053] Process particle storage slots at the edge of the circular aluminum foil;

[0054] The aluminum foil and the tempered glass are connected by a gold wire, and the two ends of the gold wire are glued to the aluminum foil and the tempered glass.

[0055] Spread the sound-absorbing particles evenly on the aluminum foil, a...

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Abstract

The invention relates to a standing wave elimination device, a sound box and a sound box transformation method, the standing wave elimination device comprises a transparent plate, the transparent plate can be extruded and fixed on the hole surface of an open hole formed in a top plate of the sound box and covers the open hole, and the transparent plate is connected with a metal foil through at least one metal wire. According to the sound box, standing waves can be effectively eliminated, the tone quality of the sound box can be improved, and the sound box has interestingness and entertainment.

Description

technical field [0001] The invention relates to the technical field of audio equipment, in particular to a standing wave elimination device, a sound box and a sound box transformation method. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Standing waves refer to two waves (not necessarily radio waves) with the same frequency and opposite transmission directions, which form a distribution state along the transmission line. One of the waves is generally a reflection of the other. Antinodes appear at the point where the two voltages (or currents) add, and nodes form at the point where the two voltages (or currents) subtract. On the waveform, the positions of the nodes and antinodes are always constant, giving the impression of "stationary", but its instantaneous value changes with time. If the amplitudes of the two waves are equal, the amplitude o...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H04R1/28H04R1/02
CPCH04R1/02H04R1/2803H04R1/2873H04R1/288H04R2201/02
Inventor高杨高靖然高麒然高岩
OwnerQILU NORMAL UNIV