What Parts Does A Speaker Consist Of?

Our most common electric cone speaker. Electric cone speakers were often referred to as paper cone speakers in the past. Although the diaphragm in 2014 was still mainly paper cone, many polymer material diaphragms and metal diaphragms appeared at the same time. The name cone speaker justifies its name. Actually. The cone speaker generally consists of three major systems: magnetic circuit system (permanent magnet, core column, magnetic conductive plate), vibration system (paper cone, voice coil) and support auxiliary system (centering support, basin frame, edge pad). Partial composition.
1. Voice coil: The voice coil is the driving unit of the cone speaker. It is made of very thin copper wires wound around a paper tube in two layers, usually with dozens of turns. It is also called a coil and is placed between the magnetic core column and the In the magnetic gap formed by the magnetic conductive plate. The voice coil and the paper cone are fixed together. When the sound current signal passes into the voice coil, the vibration of the voice coil drives the paper cone to vibrate.
2. Paper cone: There are many types of materials used in the cone-shaped diaphragm of cone-shaped paper cone speakers, generally including natural fibers and artificial fibers. Natural fibers often use cotton, wood, wool, silk, etc., while man-made fibers use rayon, nylon, fiberglass, etc. Since the paper cone is the sound radiation device of the speaker, it determines the sound reproduction performance of the speaker to a considerable extent. Therefore, no matter what kind of paper cone, it is required to be both light and rigid, and cannot be deformed due to changes in ambient temperature and humidity. .
3. Folding ring: The folding ring is set up to ensure that the paper cone moves along the axial direction of the speaker and restricts lateral movement. It also blocks the air circulation in the front and rear of the paper cone. In addition to the commonly used paper cone materials, the folding ring materials also use plastic, natural rubber, etc., and are bonded to the paper cone through hot pressing.
4． Centering support piece: The centering support piece is used to support the joint between the voice coil and the paper cone to ensure that it is vertical and not skewed. There are many concentric rings on the centering support piece, allowing the voice coil to move freely up and down in the magnetic gap without moving laterally, ensuring that the voice coil does not collide with the magnetic conductive plate. The dust cover on the centering support piece is to prevent external dust from falling into the magnetic gap, causing friction between the dust and the voice coil, and causing the speaker to produce abnormal sound.
Generally speaking, speakers are composed of: magnets, frames, centering support pieces, and molded ring cone-shaped paper cones.