Submersible Pump Connector Latching for Simpler Sealed Assembly
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Solution Overview
Problem
The assembly of submersible motor pumps is complex due to the need to lead out and reinsert connectors, requiring additional steps and sealing procedures, which complicates the process and increases the risk of errors.
Innovation Solution
A method for producing a submersible motor pump with a radially resilient latching tab on the first connector that allows for easy insertion and latching within the pot-shaped housing, eliminating the need to lead out and reinsert connectors, and providing a seal-less sealing system by directly latching the connector to the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first connector is led out through the opening for connection to the second connector, then reliable electrical connection is achieved, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The connector system is divided into two separate connectors (first connector inside the housing and second connector outside), each with its own mounting structure. This segmentation allows independent installation and connection, simplifying the overall assembly process while maintaining reliable electrical connection.
Solution Approach 2:
The first connector is pre-mounted inside the pot-shaped housing before the motor components are installed. This preliminary action eliminates the need to lead the connector out through the opening later, reducing assembly complexity and time while ensuring reliable electrical connection is already established.
2Reliability
If the connector is led out and reinserted through the opening, then electrical connection is established, but additional sealing procedures are required increasing error risk
Solution Approach 1:
The sealing function is separated from the electrical connection function. The first connector has its own integrated sealing structure that seals against the housing interior, while the second connector seals against the exterior. This segmentation eliminates the need for complex sealing procedures at the opening while maintaining reliable electrical connection.
Solution Approach 2:
The opening acts as an intermediary space that allows the first connector to be accessed from the outside for connection to the second connector, while the integrated sealing structures ensure that this intermediary access does not compromise the moisture-tight integrity of the housing.
3Ease of manufacture
If the first connector is latched to the pot-shaped housing, then assembly is simplified and moisture-tight connection is achieved, but the connector must be accessible from outside the housing
Solution Approach 1:
The first connector is pre-positioned and latched to the housing interior at a location that is accessible through the opening. This preliminary positioning ensures that the connector is in the correct location for external connection while maintaining the simplified latched attachment structure.
Solution Approach 2:
The opening serves multiple functions: it allows access for mounting the first connector from the outside, provides access for connecting the second connector to the first connector, and maintains the moisture-tight sealing of the housing. This multi-functionality reduces the need for additional openings or access points.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method simplifies the assembly process, reduces the risk of errors, and provides a moisture-tight connection, making the submersible motor pump more robust and suitable for pumping waste water and sewage, while being applicable for various fluid handling systems.
Implementation Method 1
at least one radially resilient latching tab
Data Source
AI summary
A method for producing a submersible motor pump for pumping waste water and/or sewage includes a cylindrical pot-shaped housing forming an inner space between an open base surface and a cover surface axially opposite the base surface, including a connector opening provided in the pot-shaped housing, a motor provided in the inner space and comprising a cylinder-like stator comprising a plurality of windings and a first connector connected to ends of the windings, in particular oriented towards the cover surface and provided with at least one radially resilient latching tab, including the steps of gripping the first connector from outside the pot-shaped housing through the connector opening, inserting the first connector from the inner space into the connector opening, and latching the at least one latching tab to the pot-shaped housing.