Fluid Measurement Interface With Shape-Locked Connector Clamping

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Solution Overview

Problem

The existing methods for connecting fluid measurement points to interfaces in laboratories are complicated, prone to contamination, and can disturb measurement operations due to manual maneuvering and screw threads, which lead to potential contamination and unreliable clamping forces.

Innovation Solution

A modular fluid measurement system with an interface featuring holding elements and supports that secure process connectors through shape interlocking, eliminating the need for screws to pass through the interface, thus ensuring a robust and sealed mechanical connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If screws are led through the interface body and engage in screw threads in the fluid measurement point housing, then a mechanical connection is established, but the manufacture becomes complicated and contamination risk increases

Engineering Contradiction:
Improvemechanical connection strengthVSAvoidmanufacturing complexity
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The screw threads are extracted from the fluid measurement point housing and relocated to the interface body. The interface body now contains the screw threads, while the fluid measurement point housing has simple through-holes for the screws. This extraction eliminates the need for complex threading operations on the fluid measurement point housing, simplifying its manufacture while maintaining strong mechanical connection through the screw-thread engagement in the interface body.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The interface body serves as an intermediary that absorbs the complexity of screw thread fabrication. Instead of requiring the fluid measurement point housing to have complex threaded features, the interface body acts as a mediator that provides the threading function, thereby simplifying the overall assembly manufacturing while ensuring robust mechanical connection.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If screws are led through the interface body and engage in screw threads in the fluid measurement point housing, then a mechanical connection is established, but manual maneuvering is required and contamination probability increases

Engineering Contradiction:
Improvemechanical connection strengthVSAvoidcontamination risk
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The screw threads are extracted from the fluid measurement point housing and placed in the interface body. This creates simple through-holes in the fluid measurement point housing that do not penetrate into the inner measurement space, thereby eliminating the contamination pathway while maintaining the mechanical connection function through the interface body's threaded holes.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The interface body acts as a protective intermediary that contains all threaded features and screw penetration points away from the fluid measurement point's inner space. This intermediary structure prevents contaminants from entering the measurement chamber while still providing the necessary mechanical anchoring function.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Strength

If clamping forces are transmitted by screw thread from screws to the fluid measurement point, then mechanical connection is secured, but measurement operation is disturbed

Engineering Contradiction:
Improvemechanical connection strengthVSAvoidmeasurement operation reliability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The clamping force transmission path is extracted from the fluid measurement point housing and relocated to the interface body. The screws transmit clamping forces to the interface body through its threaded holes, not directly to the fluid measurement point housing. This separation ensures that measurement-critical components are not subjected to disturbing clamping forces while maintaining secure mechanical connection.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The interface body serves as a force-absorbing intermediary that receives and dissipates clamping forces from the screws. This intermediary structure protects the fluid measurement point from direct mechanical stress and vibration that would otherwise be transmitted through screw clamping, thereby ensuring measurement operation reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution simplifies the manufacturing of a robust mechanical connection, reduces the risk of contamination, and stabilizes measurement operations by providing a secure and sealed interface for fluid measurement points, enhancing the reliability and safety of fluid measurement systems.

Implementation Method 1

the first support includes at least a first support surface, against which an opposite surface of the holding element is kept in its end position by shape interlocking

Methodology Applied
Scientific EffectShape interlocking:

Implementation Method 2

the first support and the second support are adapted to provide a hold in the connection direction against movement away from the body

Methodology Applied
Scientific EffectMechanical support:

Data Source

PatentUS11802785B2Interface for connecting a fluid measurement point and a modular fluid measurement system
Publication Date: 2023.10.31 ENDRESS HAUSER FLOWTEC AG
  • US11802785B2 patent drawing
  • US11802785B2 patent drawing
  • US11802785B2 patent drawing

AI summary

An interface adapted for connecting a fluid measurement point includes a body including at least two connection locations, wherein the body has fluid ducts, each of which has a connection location, wherein the fluid ducts have at their connection locations first duct axes, wherein the connection locations are especially coplanar, wherein the connection locations are adapted for connecting process connectors from a connection direction for sealed communication with the fluid ducts, wherein the fluid ducts are adapted via the process connectors to supply, and drain, a medium, respectively, to and from the fluid measurement point, wherein the interface has at least one holding element for releasably securing at least one process connector to the body, wherein the holding element has at least one process connector seat, wherein the holding element is adapted to be moved into an end position (EP) effecting the securement.