During the noise-reduction retrofit process of electrical connectors, the first step is to analyze the connector’s structure to understand its original sound insulation performance and identify the sources of noise. Next, suitable noise-reduction materials are selected, such as high-density foam or rubber pads, to minimize vibration and noise transmission. In addition, sound-absorbing cotton can be added inside the connector to further enhance its acoustic performance.

The specific steps include disassembling the electrical connector, cleaning the internal components, then cutting the noise-reduction materials as required and ensuring they fit closely with each component. Finally, the connector is reassembled.

In terms of practical applications, a well-known home appliance brand significantly reduced operating noise during product use by implementing the above modifications, successfully improving the overall user experience.