Sensor Unit Compact Design Perpendicular PCB Integration

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Solution Overview

Problem

Existing sensor units for pressure measurement are bulky and lack flexibility in accommodating various sensors and interfaces, with limited protection against shock and potential malfunctions during assembly or use.

Innovation Solution

A compact sensor unit design where the circuit mount forms the internal interface at one end of the protective sleeve, with a printed circuit board integrated as a structural component, supported by a modular configuration that includes a supporting unit and a protective sleeve, allowing for flexible integration of multiple functions and redundant contact-making options without external static force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If a traditional sensor unit design with separate circuit mount and printed circuit board is used, then the assembly is robust and easy to manufacture, but the overall height increases and compactness is reduced

Engineering Contradiction:
Improveoverall heightVSAvoidstructural integration
Core Design Contradiction:
Length of moving objectVSDevice complexity

Solution Approach 1:

The patent combines the circuit mount and printed circuit board into a single integrated assembly where the PCB is positioned perpendicular to the circuit mount and joined at the first end face. This merging of previously separate components reduces the overall height while maintaining functional separation through the perpendicular arrangement and modular joining geometry.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The printed circuit board is positioned in a perpendicular manner relative to the circuit mount, transitioning from a planar arrangement to a three-dimensional configuration. This dimensional change allows compact integration along the height axis while preserving electrical and mechanical connection interfaces.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Length of moving object

If the printed circuit board is integrated as a structural component within the protective sleeve, then the overall height is reduced, but the protection against shock and reliability during assembly may be compromised

Engineering Contradiction:
Improveoverall heightVSAvoidshock protection
Core Design Contradiction:
Length of moving objectVSReliability

Solution Approach 1:

The integrated printed circuit board is nested within the protective sleeve along with the circuit mount, forming a compact hierarchical structure. The PCB is positioned perpendicular to the circuit mount and joined at the first end face, while the supporting unit joins at the second end face to support the PCB against the protective sleeve, creating a nested arrangement that maintains protection while reducing height.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The protective sleeve serves as a protective enclosure for the integrated components, providing shock protection while accommodating the compact perpendicular arrangement of the circuit mount and printed circuit board. The sleeve's structural design allows it to protect the integrated assembly without increasing the overall height.

Inventive Principle:
Principle #30Flexible shells and thin films

3Adaptability or versatility

If a modular configuration with supporting unit and integrated PCB is used, then versatility for various sensors and interfaces is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvesensor and interface accommodationVSAvoidassembly process
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The modular configuration with the supporting unit and integrated printed circuit board provides universal adaptability for various sensors and interfaces. The supporting unit can be joined to different PCB designs, and the perpendicular arrangement allows flexible integration of multiple functions including guide means for external contact, making the design versatile while maintaining standardized joining geometries for manufacturability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS9046436B2Sensor unit
Publication Date: 2015.06.02 ROBERT BOSCH GMBH
  • US9046436B2 patent drawing
  • US9046436B2 patent drawing
  • US9046436B2 patent drawing

AI summary

A sensor unit has at least one measuring cell and a circuit mount arranged in a protective sleeve. The measuring cell detects a pressure of a hydraulic block. The circuit mount has a printed circuit board, which is positioned perpendicularly relative to the measuring cell. The printed circuit board has an electronic circuit with at least one electronic and/or electrical component. The measuring cell has at least one connection point configured to tap off at least one electrical output signal from the measuring cell. The circuit mount forms an internal interface which taps off the at least one electrical output signal from the measuring cell and applies it to the electronic circuit. An output signal from the electronic circuit can be tapped off by an external interface. The internal interface is formed at a first end and the external interface is formed at a second end of the protective sleeve.