First : The scientific name of T-yoke is pole.
The copper ring at the top of the pole is commonly referred to as the "pole short ring" or "pole short ring", which plays a specific role in speaker design and is commonly used to improve speaker performance and reduce distortion. The following is a detailed introduction to the pole short ring:
Function:
1.Reducing induced electromotive force: The main function of the pole short loop is to reduce the induced electromotive force of the voice coil in the magnetic field. When the voice coil vibrates in a magnetic field, it cuts the magnetic field lines and generates an electromotive force on the voice coil. This electromotive force may cause nonlinear distortion as it interacts with audio signals. By placing the pole short ring at the top of the pole, the generation of this electromotive force can be reduced, thereby improving the accuracy of the audio.
2.Reducing high-frequency distortion: Short pole loops are particularly helpful in reducing high-frequency distortion. In the high-frequency range, the vibration speed of the voice coil is very fast, leading to the generation of more induced electromotive force. By reducing the induced electromotive force, the pole short loop can help reduce high-frequency distortion, thereby improving sound quality.
Principle:
The working principle of the pole short ring involves the basic principle of electromagnetic induction. When the voice coil moves in a magnetic field, it cuts the magnetic field lines, which, according to Faraday's law of electromagnetic induction, will generate induced electromotive force. Induced electromotive force generates additional current, causing the sound generated during speaker vibration to not match the audio signal perfectly, resulting in distortion.
The pole short loop can form a closed loop by placing a conductive ring at the top of the pole, allowing the induced electromotive force to pass through this loop instead of through the voice coil. In this way, the pole short ring will absorb the energy of the induced electromotive force, reducing its impact on the vibration of the voice coil and thus reducing distortion.
Polar short loop is a technique used in speaker design to reduce coil induced electromotive force, reduce high-frequency distortion, and thus improve sound quality and audio accuracy. It is a tool used by acoustic engineers to improve speaker performance.
What is the principle and purpose of the through-hole in the middle of the pole?
The pole vent in the middle of the speaker pole is an important design element, usually used to improve the performance of the speaker. Its main principle and purpose are as follows:
Principle: The principle of through-hole involves the cooling and airflow management of the speaker. When the voice coil vibrates in a magnetic field, it will generate heat, especially in high-power applications. This type of heating can cause an increase in temperature, which in turn affects the performance of the speaker. The design of the through-hole allows air to flow through the pole, thereby cooling the voice coil and reducing temperature. This is achieved through the following methods:
Heat conduction: Through holes allow hot air to flow around the magnetic system and poles around the voice coil, thereby taking away heat. This helps prevent the voice coil from overheating and lower the temperature.
Reducing magnetization loss: Through holes also help to reduce magnetization loss, which is related to the decrease in magnetic performance at high temperatures. By keeping the voice coil temperature low, the performance of magnetic materials can be improved.
Usage: Through holes have several important uses in speaker design:
Temperature management: Through holes help cool the voice coil to ensure it does not overheat in high-power applications. This helps to reduce the deformation of the voice coil and maintain the accuracy of the sound.
Reducing pressure difference: When the voice coil vibrates, it will generate a pressure difference on both sides, which may lead to distortion without proper airflow management. Perforation can reduce this air pressure difference, thereby improving sound quality.
Reducing diaphragm instability: The airflow through the hole helps stabilize the behavior of the vibrating film or conical diaphragm, reducing nonlinear distortion.
In summary, the use of through holes in speaker design is to maintain temperature stability of the voice coil, reduce diaphragm instability, and improve sound accuracy. It is an important design element, especially in high-power speakers, to ensure the stability of sound quality and performance
