Patent ID: 7400074

Claim:
A combined low power oil filled submersible motor and its protector, comprising a submersible motor, a protector, and a shared assembling base, wherein the protector comprises an assembly head base, an isolation chamber, a seal seat, and a thrust bearing chamber, wherein a motor housing is fixed to a first end of the shared assembling base, and a protector housing is fixed to a second end of the shared assembling base and a first end of the assembly head base of the protector, wherein the submersible motor has a main shaft that connects through the protector, wherein the thrust bearing chamber is enclosed by the second end of the shared assembling base and a first end of the seal seat, and the shared assembling base is provided with a cooling oil connecting passage that connects a motor inner chamber and the thrust bearing chamber, wherein the isolation chamber is enclosed by a second end of the seal seat and the first end of the assembly head base, and a mechanical seal is provided outside a second end of the assembly head for acting on the main shaft.