An electric switch of the normally open type includes a body, an actuator moveable between a high rest position and a low active contact position, and first second elastically deformable contact blades supported by the body. A first contact section of the first contact blade extends above a second contact section of the second contact blade. The contact sections are superposed and distanced from each other when the actuator is in high rest position, and they are in mutual electrical contact when the actuator is in low position to establish an electrical switching path. The first contact section includes a longitudinal rib that protrude downwards with respect to the plane of the underside of the first section and which is able to cooperate with the transversal contact edge of the central opening. The transversal contact edge comprises a transverse contact bend for cooperating with convexity of the longitudinal rib.

An electromagnetic relay includes a fixed contact module including a fixed contact, a movable contact module including a movable contact disposed to face the fixed contact, an armature formed of a magnetic material and configured to move the movable contact module to bring the movable contact into and out of contact with the fixed contact, and an electromagnet configured to generate a magnetic field to move the armature. At least one of the fixed contact module and the movable contact module includes a joint at which different components are joined by riveting, and a film with a thermal conductivity higher than, the thermal conductivity of the fixed contact module and the movable contact module is formed on at least one of the fixed contact module and the movable contact module including the joint.

Energy regulators which use a bi-metallic strip to open and close electrical contacts are commonly used in household appliances for temperature regulation. This approach however often results in a slow connection and disconnection of the electrical contacts. This can result in arcing which can reduce the life of the switching components and/or cause the contacts to bond together which poses a potential safety risk. Disclosed is a switching blade suitable for use in an energy regulator in which the electrical contacts are connected and disconnected rapidly. Also described is an improvement to the construction of the switching blade whereby the movement of the blade may provide an impact or jolt to separate contacts which may have bonded together.

The present disclosure relates to an electromechanical switching device comprising switching contacts configured to close an electrical circuit, wherein the switching contacts have a first switching contact and a second switching contact, wherein the first switching contact and the second switching contact can be brought into contact in order to close the electrical circuit, wherein at least one of the switching contacts s formed from a plurality of closed bodies which are arranged against one another, and wherein hollow spaces for receiving liquid are arranged between the closed bodies.

An electric switch of the normally open type includes a body, an actuator moveable between a high rest position and a low active contact position, and first second elastically deformable contact blades supported by the body. A first contact section of the first contact blade extends above a second contact section of the second contact blade. The contact sections are superposed and distanced from each other when the actuator is in high rest position, and they are in mutual electrical contact when the actuator is in low position to establish an electrical switching path. The first contact section includes a longitudinal rib that protrude downwards with respect to the plane of the underside of the first section and which is able to cooperate with the transversal contact edge of the central opening. The transversal contact edge comprises a transverse contact bend for cooperating with convexity of the longitudinal rib.

Systems and methods for a hack-proof security keyboard are described. In some embodiments, a keyboard module may include a first circuit configured to detect activation of a plurality of keys and a second circuit configured to detect activation of a subset of the plurality of keys, where the second circuit overlies the first circuit. In other embodiments, a method may include detecting an electrical signal received from a secondary membrane of a keyboard, where the keyboard includes a primary membrane configured to detect individual activation of any of a plurality of keys, and where the secondary membrane is configured to output the electrical signal in response to concurrent activation of a subset of the plurality of keys. The method may also include performing a selected action in response to the detection.

In a contact member, a mesh-like contact including one or more layers of a metal other than a noble metal is embedded in such a manner as to be exposed from one of the surfaces of a rubbery elastic body. The contact member includes a highly conductive metal coat layer only in the regions of the mesh-like contact which are exposed from the rubbery elastic body, the coat layer having conductivity higher than that of the metal on the outermost surfaces of the mesh-like contact.

An electronic switch includes a substrate and a rotator assembly. The rotator assembly is configured to prevent rotation between a first rotational configuration and a second rotational configuration in a first translational position of the rotator assembly, while the rotator assembly is configured to rotate between the first rotational configuration and the second rotational configuration in a second translational position of the rotator assembly. The second translational position of the rotator assembly is translationally offset from the first translational position of the rotator assembly. An electrical contact of the rotator assembly is configured to electrically connect an electronic input path of the substrate to an electronic output path of the substrate in the first rotational configuration and first translational position of the rotator assembly, but not to electrically connect the electronic input path to the electronic output path in the second rotational configuration of the rotator assembly or in the second translational position of the rotator assembly.

A rotary switch device includes a terminal base to which a center portion contact and a fixed contact member are fixed, a movable contact member, and a support portion. The movable contact member includes a contact protrusion part which is pressed in contact with the center portion contact at one end of the movable contact member and a first contact surface which is in contact with the fixed contact member at another end of the movable contact member, and which is operated to rotate around the center portion contact so as to short-circuit between the center portion contact and the fixed contact member at a conductive rotation position.

An electronic switch includes a substrate and a rotator assembly. The rotator assembly is configured to prevent rotation between a first rotational configuration and a second rotational configuration in a first translational position of the rotator assembly, while the rotator assembly is configured to rotate between the first rotational configuration and the second rotational configuration in a second translational position of the rotator assembly. The second translational position of the rotator assembly is translationally offset from the first translational position of the rotator assembly. An electrical contact of the rotator assembly is configured to electrically connect an electronic input path of the substrate to an electronic output path of the substrate in the first rotational configuration and first translational position of the rotator assembly, but not to electrically connect the electronic input path to the electronic output path in the second rotational configuration of the rotator assembly or in the second translational position of the rotator assembly.