A novel submersible motor mounting structure for wells

By adjusting the positional relationship between the positioning holes and the mechanical seal chamber of the submersible motor seat, and by using aluminum alloy materials and die-casting molding process, the problems of oil circuit blockage and rust were solved, production efficiency and product quality were improved, costs were reduced, and the system is suitable for large-scale production.

CN224626389UActive Publication Date: 2026-08-11ZHEJIANG DOYIN TECH CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202522047087.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-08-11
Estimated Expiration
2035-09-23

AI Technical Summary

Technical Problem

In the existing submersible motor mount structure for wells, the positioning hole is flush with the oil chamber and mechanical seal chamber, which leads to oil circuit blockage, complicated production process, difficult oil injection, and the motor mount is prone to rust, affecting product quality and appearance.

Method used

A novel submersible motor upper structure for wells is designed, with the positioning hole positioned higher than the highest point of the oil chamber and the highest point of the mechanical seal chamber higher than the oil chamber. It is made of aluminum alloy in one piece by die casting, and the processing technology is improved to die casting.

Benefits of technology

It improves production efficiency and product quality, reduces labor costs, enhances corrosion resistance, reduces transportation and assembly costs, is suitable for large-scale production, and improves the thermal conductivity and appearance of the motor.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This utility model discloses a novel submersible motor upper seat structure for wells, including a motor upper seat with an oil chamber and a bearing chamber inside. A mechanical seal chamber is located above the bearing chamber for installing the mechanical seal. The oil chamber and the mechanical seal chamber are connected by a slot. Positioning holes are evenly distributed along the circumference of the side of the motor upper seat, with the positioning holes positioned higher than the highest point of the oil chamber, and the highest point of the mechanical seal chamber higher than the oil chamber. This utility model modifies the positional relationship between the oil chamber, the mechanical seal chamber, and the positioning holes, reducing quality risks in casting and machining, improving product quality and production efficiency; it increases oil saturation, completing oil injection in one step, significantly saving labor costs; the upper seat is made of hard-anodized aluminum alloy, which has low cutting resistance, is easy to machine, causes less tool wear, is less prone to corrosion, has minimal impact on the appearance of the electric pump, and has a cost similar to that of gray cast iron upper seats. Aluminum alloy is lightweight, reducing transportation and assembly costs, and has good thermal conductivity, which can lower the temperature of the motor during operation.
Need to check novelty before this filing date? Find Prior Art