An adaptive damping plate for new energy vehicles

Abstract

The invention discloses an adaptive damping plate for new energy vehicles, which relates to the field of vibration reduction and noise reduction, and includes a sound-absorbing layer, a circuit layer, a damping layer and a contact layer, and the sound-absorbing layer, circuit layer, damping layer and contact layer are self- It is made of adhesive bonding from top to bottom, and a 4-layer composite board is designed to enhance the ability of shock absorption and noise reduction. In particular, the active noise reduction circuit layer is set to further improve the noise reduction ability. The automatic noise reduction unit in the circuit layer can generate A sound wave with equal amplitude and anti-phase with the noise source, two rows of sound waves are superimposed on each other in the downstream of the air duct to achieve the purpose of noise reduction, and the power supply of new energy vehicles is sufficient, and the power and voltage are more stable, which can ensure the stable operation of the circuit layer.

Description

technical field [0001] The invention relates to the field of vibration reduction and noise reduction, in particular to an adaptive damping plate for new energy vehicles. Background technique [0002] Noise, vibration and comfort are comprehensive technical indicators to measure the manufacturing level of modern automobiles. Especially for cars, the noise inside the car is one of the important criteria to measure the grade and brand of cars. The current damping plate is usually made of a single material, such as asphalt, rubber, etc., which has poor sound attenuation and noise reduction effects. [0003] Even if the composite damping plate is used, it can only optimize the ability of shock absorption and noise reduction, and the effect is still limited. Especially the noise reduction ability. Most of the various damping panels currently on the market only rely on sound insulation and sound absorption to reduce noise, and the effect is mediocre. Contents of the invention ...

AI Technical Summary

Problems solved by technology

The current damping plate is usually made of a single material, such as asphalt, rubber, etc., and the noise reduction effect is not good

[0003] Even if the composite damping plate is used, it can only optimize the ability of shock absorption and noise reduction, and the effect is still limited

Especially the noise reduction ability. Most of the various damping panels currently on the market only rely on sound insulation and sound absorption to reduce noise, and the effect is average.

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