Device for detecting a keystroke of a key module, keyboard and method for detecting a keystroke of a key module

A device for detecting a key press of a keyboard, comprising a key module, a circuit substrate, a planar coil arranged on or in the circuit substrate, and at least one damping element, wherein the at least one damping element for damping the planar coil is movably arranged in the key module between a rest position and an actuation position, wherein the damping element executes a first actuating movement during the movement in a direction of the actuation position and executes a second actuating movement during the movement towards the rest position, and wherein the device outputs at least one electrical signal when carrying out the first actuating movement and/or the second actuating movement,

• wherein the key module is arranged on the circuit substrate,
• wherein the key module has a housing and a plunger that is movable relative to the housing,
• wherein the plunger is movable between a starting position and a pressed position,
• wherein the plunger is held in the starting position by a resilient means,
• wherein the resilient means is not said damping element,
• wherein a key cap for actuation arranged at a free end of the plunger,
• wherein, upon pressing of the key cap, the plunger is moved from the starting position in a direction of the pressed position, whereby the resilient means being tensioned in this process,
• wherein, without pressure on the key cap, the plunger is moved back towards the starting position by the tensioned resilient means,
• wherein the damping element is the plunger or the damping element is arranged and/or formed on the plunger,
• wherein the movement of the plunger being the first or second actuating movement of the damping element or corresponding to the first or second actuating movement of the damping element,
• wherein, in the starting position of the plunger, the damping element is in the rest position, and
• wherein, in the pressed position of the plunger, the damping element is in the actuation position.