Bass-boosted plasma speakers
A bass enhancement, plasma technology, applied in the field of loudspeakers, can solve the problems of poor performance, large area of air forming vibration, difficult to generate medium and low sound field and so on
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Embodiment 1
[0014] Such as figure 1 , figure 2 In the first embodiment shown, the bass-enhanced plasma loudspeaker includes a base 1, and a cylindrical housing 2 is fixed above the base 1; There is a circumferential gap of 2-3 mm between the periphery of the partition 3 and the inner wall of the cylindrical housing 2, so as to divide the interior of the cylindrical housing 2 into an upper cavity 21 and a lower cavity 22; In the circumferential gap, there are electrode pairs 4 evenly distributed in the circumferential direction, and each electrode pair 4 is jointly coupled to the plasma speaker module provided in the base 1; so that when the plasma speaker module is working, each electrode pair 4 produces a surrounding The audio arcs of the partition plate 3, and at the same time, the audio currents in each audio arc have the same clockwise direction; the peripheral wall of the lower cavity 22 is full of sound holes 220, and the peripheral wall of the upper cavity 21 Closed with the top...
Embodiment 2
[0018] Such as image 3 The difference between the illustrated embodiment two and the first embodiment is that an audio coil 7 is provided on the wall of the upper cavity 21 at 2-3 mm above the closed coil 5, and the audio coil 7 is coupled through a bass frequency divider. In the plasma speaker module, the audio coil 7 is passed with a current with the same magnitude and direction as the low-frequency component in the audio arc, so that when the audio coil 7 has more low-frequency components in the audio, the audio coil 7 will form a The larger current in the same clockwise direction of the arc attracts the audio arc and increases the upward offset of the audio arc, so that more sound waves are generated in the upper cavity 21 and the bass performance effect is improved.
Embodiment 3
[0020] Such as Figure 4 The third embodiment shown differs from the above two embodiments in that: an upper metal plate 81 is arranged above the partition plate 3, and the edge of the upper metal plate 81 is far from the electrodes in each of the electrode pairs 4. Connecting line 1-2mm; The bottom of described dividing plate 3 is provided with lower metal plate 82, and the edge distance of this lower metal plate 82 is 2-4mm from the electrode connecting line in each described electrode pair 4; Thus, when audio frequency arc When there are many high-frequency components, the arc is captured by the edge of the lower metal plate 82 after it deviates downward from the partition plate 3, so as to increase the downward offset, so that more treble components are generated in the lower cavity Similarly, when there are more bass components in the audio arc, the arc is easily captured by the upper metal plate 81, so that more bass components are generated in the upper cavity 21.
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