摘要:
A household appliance comprises a cabinet, a door and a door block/release device. In normal conditions, the device is actuated by electrically powered actuator means whilst in case of need the device can be actuated by means of a release system. The device comprises an actuation element, preferably made of shape memory material, inserted within a movable body. The device is capable of passing from the condition of blocking to that of releasing the door both by means of a movement of the actuation element caused by the electrical power supply control of the actuator means and by means of a manual actuation, using the housing body as an element of manual mechanical transmission.
摘要:
A device for controlling the-flow of a fluid in one or more conduits in an electrical appliance, particularly in a dishwasher machine, comprises at least a control member, movable between two or more positions, and shape memory actuator means of control member.
摘要:
A method and a system for controlling a plurality of shape-memory actuators, for instance installed on board a motor vehicle, control the electric supply current of each shape-memory elements as a function of one or more parameters referring to environmental conditions, such as environment temperature and temperature of memory-shape actuator, of available supply voltage for motor vehicle battery, of previous actuations, or of previous activation requests of shape-memory actuators.
摘要:
An outer-rearview-mirror unit for a motor vehicle comprises an electrical switching device with a number of positions, which controls electrical supply of a plurality of shape-memory wires that control oscillation of the reflecting plate of the mirror. The electrical switching device has a single control lever with a number of positions projecting from a support, which, in the mounted condition of the mirror, is in a position coinciding with that of the base of the mirror, on the inside of the passenger compartment of the motor vehicle.
摘要:
A discrete step rotary actuator (1) comprises a stator (2), a rotor (3) and at least an actuating element (10) made with a shape memory active material, the actuating element (10) having a first portion (11) anchored to said stator and a second portion with a terminal element (12). The rotor has a sequence of seatings (14) arranged as a circumference, into which the terminal element (12) can engage in a sequential way. Elastic means (13) placed between the actuating element (10) and the stator (2) induce the shift of the terminal element (12) between two consecutive seatings (14), during the passage of the active material from its shortened to its extended configuration. The passage of the active material from the extended configuration to its shortened configuration imparts the rotor (3) a rotation couple with respect to the stator (2).
摘要:
A shape-memory actuator device comprises means for interrupting electrical supply to a shape-memory element when the axial load applied to said element exceeds a predetermined threshold value.
摘要:
A release device for a component of a motor-vehicle seat comprises a shape-memory actuator which can be actuated either electrically or manually as a tie-rod.