Submersible electronics module and submersible pump assembly with such

EP4728197A1Pending Publication Date: 2026-04-22GRUNDFOS HLDG
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
GRUNDFOS HLDG
Filing Date
2024-05-13
Publication Date
2026-04-22

AI Technical Summary

Technical Problem

Submersible pump assemblies face limitations in maintenance and repair due to integrated control electronics within the motor module, which restricts lateral space and requires a variety of motor modules for different applications, while also limiting power due to slim shape constraints.

Method used

A submersible electronics module is introduced, axially installed between the pump and motor modules, allowing independent maintenance and reducing the variety of motor modules needed, by decoupling power lines and enabling larger motor diameters, with standardized couplings and optional hermetic sealing for efficient cooling and insulation.

Benefits of technology

This solution enhances maintenance efficiency, reduces the variety of motor modules required, and allows for increased motor power without increasing the assembly's diameter, while maintaining a slim shape suitable for boreholes and tanks.

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    Figure EP2024063100_19122024_PF_FP_ABST
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Abstract

The present disclosure is directed to a submersible electronics module ( 17) enclosing electronics (18, 47, 49), wherein the submersible electronics module (17) has a first end section (23) and a second end section (25), wherein the first end section (23) of the submersible electronics module (17) comprises a first coupling section being releasably couplable to a submersible pump module (13), wherein the second end section (25) of the submersible electronics module (17) comprises a second coupling section being releasably couplable to a submersible motor module ( 15), wherein the submersible electronics module (17) comprises an interme- diary drive shaft section (45), wherein the intermediary drive shaft section (45) is releasably couplable to a motor drive shaft section (43) of the submersible motor module (15) for receiving a torque from the motor drive shaft section (43), and wherein the intermediary drive shaft section (45) is releasably couplable to a pump drive shaft section (35) of the submersible pump module ( 13) for transferring the torque to the pump drive shaft section (35).
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