Gearbox Valve Unit Fixation Plate for Vibration-Stable FPC Assembly
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Solution Overview
Problem
Existing valve units for gearbox control units in commercial vehicles face difficulties in easy assembly and damage-free disassembly, often resulting in fragile connections prone to vibrations and noise emissions.
Innovation Solution
A valve unit design incorporating a fixation plate assembly securely attached to a valve block, featuring pivotally coupled receiving hooks, rails for structural support, and locking mechanisms to ensure durable, vibration-free connections while allowing for easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flexible printed circuits are directly soldered, reinforced by plastic holders, or glued to the valve unit, then vibrations and unwanted sound emissions are avoided, but assembly becomes difficult and components are destroyed when disassembled
Solution Approach 1:
A fixation plate assembly is introduced as an intermediary component between the flexible printed circuit and the valve block. This mediator provides a stable mounting surface that avoids direct attachment issues, enabling both reliable connection and easy assembly/disassembly without component destruction
Solution Approach 2:
The connection system is divided into separate functional components: the fixation plate assembly, the flexible printed circuit, and the valve block. This segmentation allows each component to be optimized independently and facilitates easy assembly and disassembly while maintaining connection stability
2Reliability
If flexible printed circuits are directly soldered, reinforced by plastic holders, or glued to the valve unit, then vibrations and unwanted sound emissions are avoided, but components are destroyed when disassembled
Solution Approach 1:
The fixation plate is integrated with the valve block to form a unified fixation plate assembly. This merging reduces the number of separate components and simplifies assembly while maintaining connection stability and enabling damage-free disassembly
3Strength
If traditional connection methods are used, then the flexible printed circuit is attached to the valve block, but the connection is fragile and prone to vibrations
Solution Approach 1:
The fixation plate assembly serves as a mediator that provides a rigid, stable mounting surface for the flexible printed circuit, isolating it from vibrations and strengthening the connection without direct attachment to the valve block
Data Source
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AI summary
The invention relates to a valve unit (8) for a gearbox control unit (2) of a commercial vehicle, said gearbox control unit (2) comprising a flexible printed circuit (12) for connecting the valve unit (2) to the gearbox control unit (2). The invention furthermore relates to a method for assembling a valve unit (8) and a gearbox control unit (2). According to the invention, said valve unit (8) comprises a fixation plate assembly (14) comprising a fixation plate (16), wherein the flexible printed circuit (12) is attached to the fixation plate (16), and wherein said fixation plate assembly (14) is attached to said valve block (18).