The disclosure relates to an electromagnetic switch, comprising: an armature; a slider configured to manually move to actuate the armature; and a deformable force transfer element positioned between the slider and the armature, wherein the slider is configured to be pressed against the deformable force transfer element to actuate the armature with a press force, and wherein the deformable force transfer element is configured to deform when a press force threshold value is exceeded to limit a transferable force from the slider onto the armature.

An actuating element for a switch includes a U-shaped actuating section. The actuating section includes two different arms with different lengths. The long arm is configured to transfer force to the push-button of the switch and includes a bracket portion at the free end of the long arm for supporting actuating element. The short arm is configured for the force input and is aligned obliquely to the long arm.

A haptic peripheral includes a housing and a haptically-enhanced user input element. The haptically-enhanced user input element is configured to receive an input from a user, and includes a mechanical key having a keycap with a user contact surface configured to contact the user and a smart material actuator integrated onto the user contact surface of the keycap. The smart material actuator is configured to receive a control signal from a processor and is configured to deform at least a portion of the user contact surface relative to the keycap of the mechanical key in response to the control signal from the processor to thereby provide a haptic effect to a user of the haptic peripheral. The haptic peripheral may also include a braking actuator coupled to the mechanical key to hold the mechanical key in a depressed position to indicate an inactive status to a user. In addition, the haptic peripheral and the haptically-enhanced user input element may be modular.

A switch device and a music generation device are provided. A switch device comprising: a switch; a housing; a movable shaft that moves with respect to the housing to press the switch; an elastic member that biases the movable shaft to one end side of the movable shaft in an axial direction; and an arm for pressing the switch at a position eccentric from an axis of the movable shaft.

The invention discloses a keyboard switch including a base, a cover covering the base to form a cavity, an upper guide core disposed in the cavity and an upper guide core limiting mechanism including a lower guide core elastomer, a lower guide core, a middle guide core spring and a middle guide core sequentially disposed on the base. The upper guide core and the middle guide core are connected through an upper guide core spring. The keyboard switch of the invention provides accuracy of the press-conduction displacement, accurate positioning of the conduction course, and adjustability of the press force, such that the press force becomes more balanced, and the keyboard switch is conducted when the guide core is pressed downwards. Thus, the overall press stability of the keyboard switch is improved.

A switch assembly includes a manually operable push button, an elastic element, a rotatably mounted transmitter, and a microswitch, wherein the push button includes a pusher, which, upon actuation of the push button, exerts a first force on the elastic element, the elastic element connects to a force arm of the transmitter and is configured to transmit at least a part of the first force onto the force arm, and set the transmitter in a rotation, and the transmitter further includes a load arm configured to exert a second force on the microswitch during rotation of the transmitter.

A control module (10) for an electronic device including a push-button (11) including a striker element (111), a switch (12) adapted to occupy a connected state and a rest state, said striker element (111) being configured to drive the switch (12) into one or the other of the connected and rest states, the control module further comprising a stop member (13) against which the striker element (111) comes to bear when it drives the switch (12) into the connected state or into the rest state.

A computing device may include a housing with an aperture. A switch with an activation surface is connected to the housing. A button may be slidable within the aperture and may be configured to receive an activation force from a user to activate the switch. The button may be moveable to activate the switch. The button may have a back surface that is offset from the activation surface of the switch such that when the button is moved to the active position the activation surface and the back surface do not come into direct contact. An adapter may be positioned between the switch and the button, where the adapter has a switch surface and a button surface. The button surface may be aligned with the back surface of the button and the switch surface may be aligned with the activation surface of the switch.

Embodiments herein provide haptic button assemblies with a shape memory alloy actuator (SMA) in which the haptic button has a low profile while still providing a satisfying tactile response or sensation to a user. Advantageously, the haptic button assemblies may have a profile that, for example, enables the assembly to be incorporated into the free space along an edge of a portable computing device. The haptic assemblies may for example, be arranged to move the button perpendicularly with respect to the edge of the device.

An input device with an adjustable force level is provided. The input device includes a circuit board and a key structure. The key structure includes a key body, a casing and a pressure-adjustable elastic receptacle. The pressure-adjustable elastic receptacle is partially or completely accommodated within the casing and sustaining the key body. When the key body is moved downwardly, a resisting force to resist the key body is provided by the pressure-adjustable elastic receptacle and the force level of the resisting force is adjusted by the user. When a force with the force level is applied to the key body by the user, a switch of the circuit board is triggered.