摘要:
A closure bottom plate 1 for electric pump 100, in particular for a boiler circulation centrifugal pump, having an integrated system for removing the internal condensate, such plate being extremely easy to manufacture and assemble, comprises: a motor cover 2 cup-shaped and provided with coupling opening 21, arranged to be associated, closing it, to the end of a box-shaped containment body 102 of the electric pump; and a connector-holder cover 3, associable in a mounted configuration to the coupling opening 21, in turn comprising fixing means 30 arranged to hold at least one electrical connector 300 in a preset position of connection to the electric pump 100. The bottom plate 1 has an internal aeration path 4, intended to allow the circulation - by natural convection - of the air which is heated during the operation of the electric pump 100 preventing the formation of condensate inside the bottom plate 1. Such internal aeration path 4 is extended between at least one inlet opening 22 arranged on the motor cover 2 and an outlet opening 36, successively crossing the internal volume of the motor cover 2, the coupling opening 21, and a labyrinth 32 defined by the connector-holder cover 3.
摘要:
An accessory device (1) for an aquarium is described, in particular for a thermal heater (2), which may be vertically positioned. It comprises an accessory device (2) for operation of said aquarium and supporting means (4, 5) for supporting the accessory device (2) on a wall of the aquarium tank. The supporting means (4, 5) comprise a supporting body (4) which may be attached to the aquarium wall and latching means (5, 10), which are integral with the accessory device (2) and may be removably associated with said supporting body (4). The supporting body (4) supports the latching means (5, 10) and the accessory device (2) and allows selection of vertical position of accessory device (2) with respect to supporting body (4).
摘要:
A pump (2') for dishwashing machines is described, comprising an electric motor (21'), an impeller (23') and electronic motor control circuitry (27'), the electric motor (21') being able to rotate the impeller (23'), the electronic motor control circuitry (27') being able to control the electric motor (21'). Advantageously, the electronic motor control circuitry (27') is structured to control the electric motor (31') of an additional pump (3'). Furthermore, a pump assembly for a dishwashing machine (6') is described, comprising a master pump (2') and at least one slave pump (3'), the master pump (2') being of above said type, the at least one slave pump (3') being electrically connected to the electronic motor control circuitry (27') and being electronically controlled by the electronic motor control circuitry (27'). A dishwashing machine (1') is also described, comprising a pump assembly of above said type, the dishwashing machine (1') being hydraulically connected, on the inlet side, by means of suction, to the water distribution system, through the at least one washing pump (2') and being connected, on the outlet side, to the water distribution system or to a drain, through the at least one discharge pump (3').
摘要:
A motor-pump assembly for household appliances (1) such as dishwashers and washing machines, in particular for discharging water, of unusual structural simplicity, comprises a pump equipped with an impeller (2A) and a single-phase synchronous electric motor (7) with mechanical start-up equipped with a stator (5) and with a rotor (3) mutually separated by an air gap (4). The rotor (3) is of the type using permanent magnets (2B); the stator (5) is of the diapason type and is equipped with a pack core of laminations and with a pair of pole pieces (5C) that wrap coaxially around the rotor (3). The length (s) of the pole pieces (5C) of the stator (5) is at least 15% less than the length (r) of the rotor (3).
摘要:
The present invention relates to a two-phase synchronous electric motor (1), comprising a permanent-magnet rotor (2), rotating around a respective rotation axis (X), and a core lamination-pack (10) stator (4), wherein first (6) and second (7) pairs of pole pieces (8) define a housing/rotation seat (5) for said rotor (2) and wherein each pole piece (8) comprises a core (9), having an end associated to the core lamination pack (10) and a free end portion (11), facing the rotor (2) housing/rotation seat (5), a coil (12) on a respective support (13) wedged on said core (9). Advantageously, at least the free end portion (11) of the core (9) of each pole piece (8) comprises a core lamination pack (15) extending in respective parallel planes to the rotation axis (X) of the permanent-magnet rotor (2). Advantageously, the core laminations (15) have a variable length to form a surface of said free end portion (11) of the core (9) of each pole piece (8) being concave in the axial direction and partially wrapping the rotor (2). The particular structure of the stator (4) can be advantageously matched to the double-joint kinematic coupling between the rotor (2) and the load (31) and to the phase displacement capacitor (C) expedient between the windings associated to one of the pole piece pairs.
摘要:
The invention concerns a synchronous electric motor (3) particularly for washing-machines (1) and similar household appliances with rotary drum (2) kinematically connected to the motor (3) through a belt and pulley link (6), of the type comprising:
a central stator (5) mounted fixed on an axis (7); an outer rotor (4) with permanent magnets (13) rotably cantilevered supported on the axis (7) of the motor (3) with interposition of at least one bearing (19).
Advantageously, the rotor (4) is substantially cylindrical cup-like shaped with bottom wall centrally shaped like a cylindrical funnel defining a hub (14) for receiving the bearing (19) and with a pulley (27) formed integrally with the hub in its substantial axial extension.
摘要:
Pressure filter for aquariology for retaining impurities of the water intended for ponds, aquaria and the like, of the type comprising a glass-like container (12) closed by a cover (14), a liquid path (15) extended in the container between an inlet opening (16) and an outlet opening (17), a filtering body (18) placed along the path and having an exposed surface (19) whereon the impurities are retained, and at least a brushing element (31) mounted in the container in a guided way with to and from movement along the exposed surface (19) for removing the impurities, characterised in that the brushing element (31) is mobile against the exposed surface (19) for maintaining a pressing contact between the brushing element (31) and the exposed surface (19).