Pump Unit Electronics Housing Connection Element
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Solution Overview
Problem
Current pump assembly designs face complexities in connecting external electrical or electronic components to a circuit board within the electronics housing, particularly due to the need for molding electrical strip conductors into plastic materials or using cable feed-throughs, which complicates the molding procedure and assembly, and poses challenges in sealing and preventing damage.
Innovation Solution
A separate connection element, designed as a plastic shaped part, is used to securely connect the circuit board to external components, eliminating the need for molded conductors within the electronics housing. This element features plug connectors and strip conductors for reliable electrical connections, allowing for a simpler assembly and improved sealing, with the option to connect external components without direct contact to the circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrical strip conductors are molded into the electronics housing, then electrical connections are achieved, but the molding procedure becomes complicated
Solution Approach 1:
The invention divides the electrical connection system into separate components: a connection element with plug connectors and strip conductors that is independent of the electronics housing. This segmentation allows the housing to be molded simply without integrated conductors, while the separate connection element provides reliable electrical connections through its own molded strip conductors.
Solution Approach 2:
The connection element acts as an intermediary between the electronics housing and external components. It contains the strip conductors and plug connectors that establish electrical connections, mediating between the simple housing structure and the requirement for reliable electrical connectivity without complicating the housing molding process.
2Ease of operation
If cable feed-throughs are used in the housing, then cables can be led through, but the assembly becomes complicated and error-prone
Solution Approach 1:
The invention merges the cable connection function with the electrical connection function into a single integrated connection element. The plug connectors on the connection element directly engage with corresponding connectors on the circuit board, combining what would otherwise be separate cable routing and electrical connection steps into one simple plug-in operation.
3Reliability
If cables are connected directly to plug contacts on the circuit board, then electrical connections are made, but the circuit board may be damaged by incorrect handling
Solution Approach 1:
The connection element serves as a protective intermediary between external cables and the circuit board. All electrical connections to external components are made through the plug connectors on the connection element, which then connect to the circuit board via plug couplings. This intermediary structure protects the circuit board from direct exposure to external connections and potential damage from incorrect handling.
4Reliability
If the electronics housing is designed with integrated conductors, then electrical connections are achieved, but sealing becomes problematic
Solution Approach 1:
By segmenting the electrical connection system into a separate connection element, the housing can be designed with simple, clean sealing surfaces without integrated conductors that would complicate sealing. The connection element itself can be sealed to the housing through its mounting structure, providing a clear separation between the sealing interface and the electrical connection functionality.
Data Source
AI summary
A pump assembly has an electrical drive motor arranged in a stator housing (8) and has an electronics housing (18) which is connected to the stator housing (8) and in which at least one circuit board (40) with electronic components is arranged. At least one separate connection element (48; 62), which is designed a plastic shaped part, is arranged on or in the electronics housing (18). The connection element includes a first electrical plug connector (52; 66), connected to a corresponding electrical plug coupling on the circuit board (40), as well as a second electric plug connector (54; 68) connected to the first electrical plug connector (52; 66) via strip conductors (54). The second electric plug connector (54; 68) serves for the electrical connection of a component situated outside the electronics housing (18).