Patent ID: 8529227
Filing Date: 2013-09-10
Classification: F04D,H01F,H02K

Abstract:
1. A submersible pump capable of providing low voltage power supply comprising: a pump body and a filter cover connected to the pump body; a stator containing cavity and a rotor containing cavity being provided in the pump body, an outside of the rotor containing cavity provided with an impeller room, the upside of the impeller room provided with a water outlet; a silicon steel sheet group of a stator and a stator coil encapsulated in the stator containing cavity in the pump body; a permanent magnet rotor fixed in the rotor containing cavity in the pump body via a rotor shaft; an impeller at one end of the permanent magnet rotor located in the impeller room; an internal transformer; wherein the internal transformer is configured to receive a high voltage AC supply and is provided with a low voltage coil, and the stator coil acts as a high voltage coil of the internal transformer, and the low voltage and high voltage coils are both located at the silicon steel sheet group of the stator and wherein the low voltage coil of the internal transformer is wound around a framework of the stator coil such the low voltage coil is wound below and the stator coil is wound above the low voltage coil, or alternatively wherein the stator coil is wound below and the low voltage coil is wound above the stator coil and further comprising a rectifier filter circuit connected to the low voltage coil such that the low voltage coil of the internal transformer provides AC low voltage to the rectifier filter circuit and the rectifier filter circuit provides low voltage DC power supply to the outside.