Abstract: The present disclosure relates to the technical field of aquarium equipment. Disclosed is an aquarium that includes a tank, an electric device disposed in the tank, a first conductive contact configured to be coupled to an external power source, and a second conductive contact coupled to the electric device. The first conductive contact is configured to come into contact with the second conductive contact to power up the electric device.

Abstract: Disclosed are a water pump and an aquarium equipment that includes the water pump. The water pump includes a stator, a rotor assembly, an impeller, and a power generation induction module. The stator includes a U-shaped iron core and a coil winding wound around the U-shaped iron core. The coil winding is connected to an external power source. The rotor assembly includes a rotating shaft and a permanent magnet rotor. The impeller is connected to the rotating shaft or to the permanent magnet rotor. The power generation induction module is spaced apart from the rotor assembly. The rotor assembly and the power generation induction module are both disposed within a range of a magnetic field at an opening of the U-shaped iron core. The power generation induction module is electrically connected to an electric equipment.

Abstract: Provided are a power generation apparatus and an aquarium equipment. The power generation apparatus includes a water pump and a magnetic induction generator. The water pump includes a housing, a stator mounted in the housing, a first rotor assembly, and an impeller connected to the first rotor assembly. The first rotor assembly includes a first permanent magnet rotor and a first rotating shaft disposed at an axis of the first permanent magnet rotor. The first permanent magnet rotor is disposed adjacent to the stator. The magnetic induction generator is disposed adjacent to the stator or to the first permanent magnet rotor and is operative to be coupled to an electric device. The stator includes a coil winding operative to be coupled to an external power source, so that when the coil winding is coupled to an input alternating current, the first permanent magnet rotor rotates enabling the magnetic induction generator to generate an induced current to power up the electric device.

Abstract: Disclosed is an effluent switching device which includes a water outlet base disposed at an outlet end of a suction pipe and a rotating mechanism inserted into the water outlet base. A water outlet is defined in the rotating mechanism. When the rotating mechanism is moved to a first position relative to the water outlet base, the water outlet communicates with the suction pipe to define a first water outlet channel; and when the rotating mechanism is moved to a second position relative to the water outlet base, the water outlet communicates with the suction pipe to define a second water outlet channel. When the effluent switching device is installed on the suction pipe of a water pump, the water outlet base and the rotating mechanism can work in conjunction to adjust a position of the rotating mechanism, achieving the purpose of switching between the first water outlet channel and the second water outlet channel.

Abstract: A cross-flow type flow-making water pump is provided, including a motor, two impeller and impeller housings. The cross-flow type flow-making water pump further includes clamping assemblies. The clamping assemblies are used for connecting the motor with the impellers. The clamping assemblies include clamping heads and clamping seats. The clamping heads are arranged at the ends, which are connected with motor rotating shaft, of the impellers. The clamping heads include at least two clamping sheets symmetrically arranged along axial directions of the impellers. The clamping seats are respectively arranged on the motor rotating shaft in a sleeving manner. Connection between the motor rotating shaft and the impellers is realized through clamping of the clamping sheets and the clamping seats.