摘要:
The device (1) comprises a frame (42) comprising a static magnetic pole (48), a movable member (44) relatively to the frame (42), the movable member (44) comprising a moving magnetic pole (46), the static magnetic pole (48) and the moving magnetic pole (46) being magnetically coupled in some position of the movable member (44), a piezosensitive element (50) so that the force due to the magnetic coupling between the moving magnetic pole (46) and the static magnetic pole (48) reacts on the piezosensitive element (50), and means (52, 54, 56, 58) for outputting an electric signal from the piezosensitive element (50), the signal being useful in determining the position and/or the speed and/or the direction of the movable member (44).
摘要:
A braking magnet is attached to the housing of a motor of a motorized component such as a window covering. With this structure the motor is braked from turning under the weight of the window covering when deenergized.
摘要:
The position and speed and, in some embodiments, direction of rotation of a motor for turning the rod of an object such as a window covering is determined by placing a braking magnet next to the motor and a piezoelectric element between the braking magnet and motor. As the motor rotates, the piezoelectric element generates a signal that can be used to determine the speed of rotation and also the position of the motor (and, hence, the position of the object being moved). The magnet brakes the motor from turning under the weight of the object when the motor is deenergized.
摘要:
Two braking magnets are attached to the housing of a motor of a motorized component such as a window covering, with one magnet north face down and the other magnet south face down. With this structure the motor is braked from turning under the weight of the window covering when deenergized, while during operation the average null value of the braking field results in minimal drag on the motor.
摘要:
An electric motor (100) for operating a shutter or solar protection element in a building, comprising at least two phases (10; 20, 30; 50, 60) and a magnetized rotor (16; 40; 70) common to both phases, each phase being relative to a rotor portion (41, 42; 71; 72) in the direction of the axis of the rotor and comprising two windings (14, 15), wherein each phase comprises an insulating yoke frame (13) on which the two windings are produced and which has a central portion (131) separating the windings, the central portion being provided with a first through-recess (134) able to surround a rotor portion passing through the phase.
摘要:
A method for operating a motorized solar protection home automation installation, comprising: an actuator intended to unfold and fold up a fabric, comprising a motor and a motor control module, and a panel of photovoltaic cells that is fixed or mobile under the effect of the actuator, intended to supply energy to recharge a reserve of electrical energy powering the actuator, the operating method comprising the following automatic steps: determination of a criterion for recharging the energy reserve, if the criterion is satisfied, displacement of the panel of photovoltaic cells or of the fabric to a recharging position in which the panel is exposed directly or by reflection to the solar rays to recharge the energy reserve.
摘要:
The invention concerns an electrical machine, whereof the active part includes a global solenoid winding (110, 210, 310) for each phase and includes, inside said winding(s), a stack of ferromagnetic or non-magnetic parts (400) and magnetized parts (500), the ferromagnetic or non-magnetic parts being provided with passages traversed each by at least one relatively sliding element (600), each sliding element constituting a succession of portions alternately magnetic (620) and non-magnetic (630), the passages formed in the ferromagnetic or non-magnetic parts of the stack forming orifices whereof the internal cross-section encloses each time one sliding element, the sliding elements (600) consisting in rods having each an outer periphery matching the internal cross-section of the traversed orifices.
摘要:
A metal or plastic tube is formed with slots to establish a noise dampening coupling to isolate the head rail of a window covering from vibrations from a motor in the head rail. The noise dampening coupling can be coupled to the output gear of the motor and to an actuator in the head rail to couple the motor to the actuator while isolating the head rail from vibrations. Also, a non-rotatable noise dampening coupling can be interposed between the motor and head rail to further isolate the head rail from vibrations.
摘要:
A position sensor generates a signal representative of the angular position and, if desired, angular velocity of a rotating object using only a single circular track and plural brushes that ride on the track when the object rotates. The single circular track can have plural segments, and the sensor can generate more than one signal cycle per revolution.
摘要:
A motor for turning the rod of an object such as a window covering is attached to an elongated ferromagnetic bar. Magnets are closely spaced from the bar, and as the bar rotates to cut the magnetic field lines, pickup coils generate signals that can be used to determine the direction and speed of rotation and also the position of the motor (and, hence, the position of the object being moved). The magnets brake the motor from turning under the weight of the object when the motor is deenergized.