Magnetic fluid speaker

The electro-acoustic conversion efficiency of the electric paper tray speaker is very low, generally not exceeding 20%, that is to say, most of the electric power it bears becomes heat energy. The temperature rise of the voice coil will increase the impedance of the voice coil, making it unmatched with the whole machine. Therefore, it is a key problem to greatly increase the power of the speaker and improve the heat dissipation of the voice coil. A kind of magnetic fluid speaker solves this problem. The structure of the magnetic fluid speaker is almost the same as that of the traditional electric speaker. The main difference is that the magnetic fluid speaker adds a certain amount of magnetic liquid in the magnetic gap. Since the magnetic induction intensity in the magnetic gap is very strong, even when the voice coil vibrates, the magnetic liquid can be firmly absorbed in the magnetic gap. Magnetic liquid is a kind of glue solution containing fine iron powder with an average diameter of 0.001 microns. These iron powders are suspended in the glue solution. In order to prevent the iron powder from sticking to each other, people are also covered with a layer of iron particles. Very thin polymer membrane.
Since the voice coil is always in the liquid when it is working, the heat generated by the voice coil is directly transmitted to the glue, and then transmitted from the liquid to the magnetic circuit system. Therefore, the heat dissipation of the magnetic fluid speaker has been significantly improved, and its rated power has also been greatly improved. The presence of magnetic liquid also enhances the damping performance of the speaker, thereby effectively reducing the height of the resonance peak on the frequency characteristic curve to make its characteristics The curve is smoother. Thinking draft
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RAM/RFM Middle Frequency Water Cooled Capacitors
RAM/RFM Middle frequency water cooled capacitors
Water Cooled Capacitors,Medium Frequency Capacitor,Intermediate Frequency Capacitors
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