Pump Power Unit Stator Connection Element
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pump units face challenges in securely and simply connecting external electrical or electronic components to a printed circuit board within the electronics housing, often requiring complex assembly processes and problematic cable sealing.
Innovation Solution
A pump unit design featuring a separate stator connection element made of plastic, which is connected to the electronics housing and includes electrical connectors for connecting the printed circuit board to external components, eliminating the need for cast-in conductor tracks and allowing for easy plug-in connections, thereby simplifying assembly and enhancing sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conductor tracks are cast into the electronics housing, then electrical connections are integrated into the housing, but the casting process becomes complicated
Solution Approach 1:
The patent divides the electrical connection system into separate modular components: a printed circuit board with electronic components, a stator connection element with conductor tracks, and the electronics housing. This segmentation allows each component to be manufactured independently using optimized processes, avoiding the need to cast conductor tracks into the housing itself, thus simplifying the overall manufacturing process while maintaining integrated functionality.
2Ease of operation
If cable bushings are used for cable routing, then external connections are possible, but assembly becomes complex and error-prone
Solution Approach 1:
The patent combines the cable routing function with the stator connection element by integrating conductor tracks directly into this component. The stator connection element serves dual purposes: providing electrical connections and guiding cable routing through integrated cable guides. This merging eliminates the need for separate cable bushings and reduces assembly steps, making the assembly process simpler and less error-prone.
3Reliability
If cables are sealed in cable bushings, then sealing is achieved, but the assembly process becomes problematic
Solution Approach 1:
The stator connection element incorporates integrated cable guides that automatically guide and position cables during assembly. The cable guides are formed as part of the stator connection element structure, creating self-aligning features that ensure proper cable positioning and sealing without requiring complex assembly procedures. The sealing function is built into the structure itself, allowing cables to be sealed in a straightforward manner.
4Ease of manufacture
If a separate stator connection element is used, then assembly is simplified and sealing is improved, but additional components are required
Solution Approach 1:
The stator connection element is designed as a multi-functional component that simultaneously performs multiple tasks: providing electrical connections via conductor tracks, guiding cable routing through integrated cable guides, enabling sealing through its structural design, and facilitating assembly with the printed circuit board. By consolidating these functions into a single universal component, the patent actually reduces the total number of separate parts needed compared to traditional designs using separate cable bushings, conductor tracks, and sealing elements.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The pump unit has a stator housing that is connected to an electronics housing. The printed circuit board is provided with electronic components. A plastic molded connector element (48,62) is arranged in the electronics housing. An electrical connector (54,68) is connected to the circuit board through a first electrical connection (52,66). The conductor tracks (56) is connected with the electronics housing through conductor tracks.