The metal reed switch array constitutes a critical component within the controller's button mechanism, typically comprising multiple metal reed switches. These switches generally employ dome switches (also referred to as ‘metal dome’ or ‘dome switch sheets’), which serve to transmit signals and provide tactile feedback within the controller.
The metal spring sheet array generally comprises multiple independent dome switches. Each dome switch is typically circular or cross-shaped, featuring a central protrusion and outwardly extending support legs. Taking the cross-shaped dome switch as an example, it possesses four supporting legs to ensure stable pressing and rebound performance. These spring sheets are usually mounted beneath the controller's buttons, corresponding to contacts on the printed circuit board (PCB).
When a player presses a controller button, the key depresses the metal spring sheet, causing its central protrusion to contact the PCB contact point. This establishes an electrical connection, creating a conductive path. The controller's control system detects this signal and executes the corresponding game command. Upon releasing the button, the spring sheet's inherent elasticity returns it to its original state, breaking the connection with the contact point and preparing for the next press.
Material Selection: Common materials for metal springs include copper and stainless steel. To enhance conductivity and corrosion resistance, surfaces are often nickel-plated or gold-plated. For instance, the XBOX ONE S controller frequently employs copper springs with metal coatings to improve conductive stability and service life.
Characteristics and Advantages: Metal spring arrays offer high sensitivity, extended lifespan, and low contact resistance. They respond instantly to presses, rapidly completing electrical connections or disconnections. Their design typically supports millions of press cycles, while low contact resistance ensures stable electrical connections. They provide distinct tactile feedback, enhancing operational experience.
Signal Transmission: A critical component for transmitting button press signals, ensuring player inputs are accurately converted into electrical signals and transmitted to gaming devices, minimising input lag and accidental presses.
Providing Tactile Feedback: The tactile sensation generated when depressing the metal spring leaf allows players to clearly perceive button activation, thereby enhancing operational precision and immersive gameplay.
Ensuring Button Longevity: The extended service life of metal spring leaves enables them to withstand frequent press cycles, consequently prolonging the overall durability of controller buttons and reducing controller failure rates.
