The Anatomy of a Car Speaker: Key Components and How They Work
Speakers are very close to our lives. We use speakers every day. From large ones like car horns to small ones in phones and headphones, if it needs to make sound, it must have a speaker. So, it is the sound producer of these items! Today, we will mainly talk about what a car speaker is and how it is constructed, a process that is revolutionized by the modern Automatic Car Speaker Assembly Line. Understanding this clearly will allow us to take a further step towards modifying car speakers.
Definition of a Car Audio Speaker
Baidu Baike explains a car audio speaker: The speaker is the audio signal device of a car. During driving, the driver issues necessary audio signals as needed and according to regulations to warn pedestrians and attract the attention of other vehicles, ensuring traffic safety. It is also used for urging movement and transmitting signals.
It is understood that car audio speakers are also known as vehicle-mounted speakers and are an indispensable part of the car audio system. They can be classified into unit speakers, component speakers, coaxial speakers, and subwoofers, etc. As the only component that converts electrical energy into sound energy, its quality and characteristics play a decisive role in the sound quality of the entire audio system.
Composition of a Car Audio Speaker
1. Surround
The surround, also called the edge, provides a certain inertia for the movement of the cone, allowing it to move back and forth. Additionally, it assists the spider in keeping the voice coil centered in the magnetic gap.
2. Cone
The cone, also called the diaphragm, directly drives the air, converting the mechanical movement of the speaker into the transmission of sound waves. It is one of the most critical vibrating components in a speaker.
3. Dust Cap
The dust cap not only prevents foreign objects from falling into the magnetic gap but also separates the air in front of and behind the cone, preventing sound radiating backwards from wrapping around to the front and causing acoustic short circuit.
4. Spider
The spider, also called the damper, significantly impacts the performance of a highfidelity woofer. Its main functions are to provide a restoring force for the cone's movement and keep the voice coil in the correct position during its movement.
5. Basket
The basket, primarily made of iron sheet, cast aluminum, or plastic, is the frame of the entire speaker.
6. Voice Coil
The voice coil is the core component of the speaker, responsible for converting electrical energy into mechanical energy.
7. Top Plate
The top plate is also called the front plate or washer. The pole piece is also called the T-yoke (the T-yoke can be divided into the bottom plate and the pole piece). Together with the magnet, they form the magnetic circuit system of the entire speaker.
8. Magnet
Magnets were initially made from electromagnets but are now mostly replaced by permanent magnets.
9. Voice Coil Former
Voice coil former materials can be divided into metal and non-metal types, including paper, polyimide, mica-reinforced resin, aluminum, and brass. Among them, aluminum alloy is the most commonly used voice coil former material for high-power speakers.
10. Pole Piece
To achieve higher magnetic permeability, the pole plate and pole piece are generally made of low-carbon steel or pure iron.
11. Vent
The vent runs through the center of the T-yoke and is not present on all components.
Now that we understand the complex composition of a speaker, we need to know how it is produced. Manufacturing these components with precision and consistency is key, which is exactly what an Automatic Car Speaker Assembly Line is designed to achieve. For this, I recommend the speaker production automated assembly line developed by Shenzhen Jiuju Automation. It automatically produces high-quality speakers for you and can help manufacturers save 65% on labor costs. As a company specializing in producing this type of equipment, the sold equipment is highly praised by numerous speaker manufacturers. If you are a manufacturer looking to improve production efficiency and product quality, you deserve to have such automated equipment. Investing in a reliable Automatic Car Speaker Assembly Line will lead you towards a bright manufacturing future!