Speaker box and peripheral device

Abstract

To provide a compact speaker box having a special structure for realizing wide-area acoustic reproduction, and to provide peripheral equipment.SOLUTION: When a low-frequency sound signal is input to the speaker unit, the speaker unit slowly vibrates back and forth, the elliptical diaphragm vibrates due to the weight of the speaker unit, the vibration is transmitted to the flat diaphragm, and the sound pressure of the flat diaphragm adds sound energy to the acoustic box in proportion to the area, thereby increasing the expansion of the low-frequency sound by the input signal of the speaker unit. Sound is emitted forward from a gap between the circular hole and the elliptical diaphragm. When a high-frequency signal is input to the speaker unit, the elliptic diaphragm vibrates fast and does not affect the flat diaphragm, so that only the elliptic diaphragm vibrates and high-frequency sound is output from the speaker unit.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a speaker box and peripheral devices having a special structure for realizing wide-range sound reproduction. [Background technology]

[0002] Traditionally, bass reproduction was achieved by inserting a bass reflex port into the audio box, or listening with high-performance earphones, with only the distorted bass coming from the speakers. Summary of the Invention [Problem to be solved by the invention]

[0003] It was difficult to achieve wide-area sound with compactly designed audio equipment. The present invention aims to solve this problem.

[0004] Connect the amplifier in front of the low-pass filter. The speaker box and peripheral devices are constructed as described above.

[0005] One advantage is that the speakers can produce sound over a wide range, allowing you to enjoy natural acoustics even with deep bass. [Brief explanation of the drawings]

[0006] [Figure 1] 1 is a diagram showing the appearance of a speaker box according to the present invention; [Figure 2] Detailed view of the speaker unit of the present invention [Figure 3] Connection diagram of peripheral devices of the present invention [Figure 4] 1 is a diagram showing an application example of the speaker box of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0007] The detailed description of the present invention is as follows. The speaker unit (1) is fixed in place with four screws (2) in the center of an elliptical acoustic board (3) made of plywood similar to plywood, with a hole drilled in the center to match the diameter of the speaker unit (1). Drill a circular hole (5) in the center of the flat acoustic plate (4), and screw the elliptical acoustic plate (3) to the flat acoustic plate (4) in two places, with the wider end of the elliptical acoustic plate (3) facing horizontally. ( 2 ) Attach it with.

[0008] When a low-pitched signal is input to the speaker unit (1), the speaker unit (1) vibrates slowly back and forth. The weight of the speaker causes the elliptical diaphragm (3) to vibrate, which then transmits the vibration to the flat diaphragm (4). Then, the sound pressure of the flat diaphragm (4) is proportional to the area of ​​the sound box. ( 6 ) Adds sound energy to the speaker unit ( 1 ) The input signal increases the bass extension. The sound comes out from the gap between the circular hole (5) and the elliptical diaphragm (3).

[0009] Next, when a high-frequency signal is input to the speaker unit (1), the elliptical diaphragm (3) vibrates quickly. Since the flat diaphragm (4) is not affected, only the elliptical diaphragm (3) vibrates, and high-frequency sounds come out of the speaker unit (1).

[0010] A tone control (7) is connected before the amplifier (6), and a low-pass filter (8) is connected after the amplifier (6). The speaker (1) has a moving coil (9) which acts as a resistor, so a capacitor (10) can also be used.

[0011] The analogy here is that a transformer can increase the voltage, but if the resonant frequency is the same, the waveform will not be distorted. The amplifier (6) increases the voltage to cause resonance.

[0012] The acoustic unit may be placed opposite the speaker unit (1) across a duct (12) to emit sound. The duct (12) is placed in the gap between the two speaker units (1). When speaker units (1) are placed facing each other and output signals simultaneously, the sound energy becomes four times denser. The present invention has the above configuration. [Explanation of symbols]

[0013] 1 speaker unit 2 screws 3 Elliptical diaphragm 4 Planar diaphragm 5 circular holes 6 Amplifiers 7 Sound quality adjuster 8 Low-pass filters 9 Moving Coil 10 Capacitors 11 Pedestal 12 Duct

Claims

1. A speaker box and peripheral devices are provided with an acoustic unit in which a speaker unit is attached to an elliptical diaphragm, a circular hole is cut out in a flat diaphragm s, and the elliptical diaphragm is fixed horizontally with two screws.

2. 2. A speaker box and peripheral equipment comprising an amplifier, a tone control provided in a preceding stage, a low-pass filter provided in a subsequent stage of the amplifier, and the speaker box according to claim 1.

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