Speaker net manufacturer: round speaker covers in the function and parts of the speaker
1. The frame of the loudspeaker is the main body where the vibrating parts, magnetic circuit and other parts are installed. According to different materials, the bracket can be divided into steel plate and plastic. The steel plate adopts SPCC steel plate, and the material thickness is 0.3~1.2MM. The surface is usually treated with color electroplating, electric black and antirust. The material of plastic is mainly ABS or ABS with fiber to increase heat resistance and strength, PBT, etc.
2. In the magneto-pneumatic circuit, they can concentrate the N pole and S pole of the magnet into the gap through the circuit, so that the gap generates a strong magnetic field. The volume of the voice coil is exactly in the middle of the gap, so the inner diameter and thickness of the iron sheet are very important.
3. U-shaped cup, T-shaped iron, U-shaped iron and T-shaped iron play a conductive role in the addition of magnetic gas. In fact, iron should be called a yoke in English. Depending on its shape, it can be U-shaped or T-shaped. From the figure below, we can understand the role of the yoke in the magnetic circuit (the part with the slash is the magnet). The voice coil in a voice coil speaker can be said to be the heart of the speaker and one of the important parts of the speaker. After the voice coil conducts electricity, the Fleming's left-handed motor moves within the magnetic field, which drives the vibrating plate. The main material is copper wire, first coated with insulation, and then coated with a layer of glue. This glue is an alcohol reclaimed glue. When the wire is dipped in alcohol, the viscosity is restored so that the copper wire can stick together to form a coil. Basically, the properties of this glue are similar to those of the material coated on the paper tube. Like the paper tube, the glue coating is different at different temperatures, especially when using high power, and the glue is strictly required. In order to reduce the weight of the voice coil, the inside is aluminum wire wrapped with copper wire, and then the wires are insulated, glued, etc.
