摘要:
Method for measuring the moment of inertia of a washing machine drum containing a load, comprising the steps of: - set said drum in rotation by means of a permanent magnet synchronous electric motor taking it to a first angular spin velocity (100-101); - identifying a synchronisation point in a periodic signal indicative of the torque provided by the synchronous electric motor at said first angular velocity (104); - starting, at said synchronisation point, an acceleration transient of said drum with constant electromotive torque provided by the synchronous electric motor (105); - interrupting the acceleration transient upon reaching a second angular velocity (107); - acquiring the acceleration transient time duration (106); - processing an indirect measurement of the moment of inertia of said drum starting from a value of the torque yielded to the drum during the acceleration transient, from the transient time duration value, and from the variation of the angular velocity in the transient, according to the formula: J = T acc ⋅ Δ t Δ ω
摘要:
Filtering unit for aquariums (1), designed to allow easy removal and repositioning of at least one filtering cartridge (20) comprising: a container (100), provided with a fluid inlet (71) and a fluid outlet to allow fluid communication thereof with an aquarium tank, inside said container a filtering path being defined which connects said flow inlet (71) and said flow outlet (73); pumping means (24) intended to move a liquid flow along said filtering path; said first vertically extractable filtering cartridge (20) defining an internal volume (253) connected, via an inlet mouth (242), to an upstream portion (72) of the filtering path, said first filtering cartridge (20) being housed in a well (619) and allowing the release of the water contained in the first internal volume (253) towards said well (619), said well (619) extending vertically from above inside the container (100) and being connected to a downstream portion of the filtering path via an outflow aperture, said first filtering cartridge (20) comprising a lower impermeable portion (26), designed to retain a volume of liquid in its interior in the case of extraction from the well (619) of the cartridge.
摘要:
A centrifugal discharge pump (1) for electric household appliances, of unusual efficiency, comprising: a working chamber which has an intake opening and a delivery opening; an open impeller (10) arranged inside said working chamber and rotatable about a main axis (x) and motor means (5) designed to drive said impeller (10) by means of a transmission shaft (6). The impeller (10) comprises a planar support element (11) integral with the transmission shaft (6), and a plurality of blades (12) projecting fran the planar extension of this element; a free space (13) of predefined volume is provided between the blades (12) in order to allow the removal of foreign solids present in the discharge stream.
摘要:
The invention describes a pulley electric motor (4) for a washing machine (1), of the type comprising a stator (7) and a rotor (6), said pulley electric motor (4) comprising both electronic power circuitry (31) for actuating said rotor (6) and electronic control circuitry (32) for controlling said electronic power circuitry (31) so as to control the movement of said rotor (6), wherein said electronic control circuitry (32) is structured and configured to also control a discharge electric pump (19) of the same washing machine. It also describes an actuation system for a washing machine, comprising a pulley electric motor (4) for the actuation into rotation of a washing drum and a discharge electric pump (19) for discharging washing water, controlled by said electronic control circuitry (32), the pulley electric motor (4) being equipped with electronic control circuitry structured and configured to also control said discharge electric pump (19) of the same washing machine (1). Finally, it describes a washing machine (1) comprising a housing body (2) for a rotary washing drum (3), a pulley electric motor connected to said drum through a kinematic belt/pulley coupling, a discharge electric pump (19) of the washing water, electronic control circuitry (32) for controlling the pulley electric motor, wherein the electronic control circuitry is structured and configured to also control said discharge electric pump of the same washing machine
摘要:
An electric motor (4) is described, comprising a stator (10) of the type having polar expansions of the wound type, a rotor chamber (2) defined by a sealed case (9), closed by a sealing ring (1), a permanent magnet rotor (3), housed inside said rotor chamber (2) and a shaft (8) fixed to said rotor (3). The motor comprises a valve for letting fluid flow out from said rotor chamber. Furthermore, an electric motor pump (5) is described, in particular for a dish washing machine or a clothes washing machine, comprising a rotor wheel (14) rotated by above said electric motor.
摘要:
A filtering unit (3) for an aquarium (1) is described, said filtering unit comprising a closed casing (5) and a liquid path extending from the inlet aperture to an outlet aperture, of the forced circulation type, by means of an electric pump (15), provided with an electric motor (16), and comprising electronic control circuits (32) which control the aquarium functions (1). Furthermore an aquarium is described, comprising said filtering unit (3). An aquarium control process is also described, comprising the following steps: - measuring at least one aquarium status variable, - monitoring the aquarium conditions.