Single-Chamber Transmitter Housing With Angled PCB

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Solution Overview

Problem

Existing field devices often require spatial separation of electronics and connecting regions within a single-chamber housing, which is challenging to achieve cost-effectively while maintaining protection and accessibility.

Innovation Solution

A single-chamber transmitter housing with a printed circuit board featuring a first and second rigid section connected via flexible, bent sections, allowing for spatial separation and protection of the electronics region while maintaining accessibility for connecting cables through a single aperture.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a multi-chamber housing is used to separate electronics and connecting regions, then protection and spatial separation are improved, but device complexity and manufacturing cost increase

Engineering Contradiction:
Improveprotection of electronics regionVSAvoidhousing structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The printed circuit board is divided into two separate regions: a first region for connecting elements and a second region for electronics components. These regions are spatially separated on the same board plane, allowing functional separation without requiring a multi-chamber housing structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of separating regions vertically through multiple chambers, the invention uses planar separation on a single housing chamber. The first and second regions are arranged at an angle of 60-120 degrees relative to each other on the same plane, transitioning from three-dimensional chamber separation to two-dimensional regional separation.

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

2Ease of manufacture

If a single-chamber housing is used to reduce complexity and cost, then ease of manufacture is improved, but spatial separation of electronics and connecting regions becomes difficult

Engineering Contradiction:
Improvehousing structureVSAvoidprotection of electronics region
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The printed circuit board is segmented into distinct first and second regions with specific functional assignments. The first region accommodates connecting elements accessible from the single aperture, while the second region houses electronics components that are protected and inaccessible from the aperture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention resolves the spatial separation challenge in a single chamber by using angular arrangement of circuit board regions. The first and second regions are positioned at 60-120 degrees relative to each other, creating functional zones within the same housing space without requiring additional chambers.

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

3Ease of operation

If the aperture is opened for cable connection, then accessibility is improved, but electronics region becomes exposed and unprotected

Engineering Contradiction:
Improveaccessibility of connecting regionVSAvoidprotection of electronics region
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The printed circuit board is divided into an accessible first region and a protected second region. When the aperture is opened for cable connection work, only the first region with connecting elements is accessible, while the second region containing sensitive electronics components remains inaccessible and protected within the housing.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250081359A1Field device transmitter housing
Publication Date: 2025.03.06 ENDRESS HAUSER FLOWTEC AG
  • US20250081359A1 patent drawing
  • US20250081359A1 patent drawing

AI summary

A transmitter housing of an automation field device is a single-chamber housing with an aperture. The field device comprises a printed circuit board arranged in the transmitter housing, the printed circuit board comprising: a first rigid and flat section and a second rigid and flat section; at least one flexible and bent section; wherein both rigid sections are connected to each other only via the at least one flexible, bent section, wherein the first rigid section is accessible from the aperture and forms a connecting region comprising at least one connecting element for connecting at least one cable, and wherein the first rigid section and the second rigid section are arranged relative to each other at a first angle of between 60° and 120°, in particular between 80° and 100°.