Movable Shielding Rack for Micro-Plate Recognition

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Solution Overview

Problem

Existing auto-samplers for liquid chromatographic analyzers require multiple racks for different types of micro-plates, leading to increased complexity and costs due to the need for multiple recognition units.

Innovation Solution

A single type of rack with movable shielding components that can be positioned to detect different micro-plates using a limited number of sensors, allowing the control unit to recognize various micro-plates by adjusting the placement of light-shielding components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple racks with different recognition units are used for different micro-plate types, then accurate recognition of each micro-plate type is achieved, but device complexity and cost increase

Engineering Contradiction:
Improvemicro-plate type recognition accuracyVSAvoidnumber of racks and recognition units
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

A single rack is designed with multiple light-shielding plates that can be selectively positioned to recognize different micro-plate types. The rack serves multiple functions by configuring different combinations of light-shielding plates, eliminating the need for separate racks for each micro-plate type while maintaining accurate recognition capability.

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

Solution Approach 2:

The light-shielding plates are made movable rather than fixed, allowing them to be repositioned according to the specific micro-plate type being recognized. This dynamic configuration enables the same rack to adapt to different recognition requirements, reducing the overall number of racks needed in the system.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple recognition units are provided for different micro-plates, then each micro-plate type can be identified, but the number of components and costs increase

Engineering Contradiction:
Improveability to recognize different micro-plate typesVSAvoidnumber of recognition units
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The recognition unit is designed with multiple light-shielding plates that can be selectively activated to identify different micro-plate types. This multi-functional design allows a single recognition unit to handle various micro-plate configurations, eliminating the need for multiple specialized recognition units.

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

Solution Approach 2:

The recognition unit is segmented into multiple independent light-shielding plates, each of which can be independently positioned or activated. This segmentation allows the recognition unit to differentiate between various micro-plate types by selecting specific combinations of light-shielding plates, providing versatility without requiring multiple complete recognition units.

Inventive Principle:
Principle #1Segmentation

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

Enables recognition of multiple micro-plate types using a single rack, reducing the need for multiple racks and recognition units, thereby simplifying the system and reducing costs while maintaining accurate identification.

Implementation Method 1

at least one light-shielding component (25) installed on the interior of the enclosure (24)

Methodology Applied
Scientific EffectLight shielding: Absorption (EM radiation)

Data Source

PatentUS9146217B2Rack with movable shielding component, and auto-sampler having the rack
Publication Date: 2015.09.29 SHIMADZU CORP
  • US9146217B2 patent drawing
  • US9146217B2 patent drawing
  • US9146217B2 patent drawing

AI summary

A rack is provided wherein the type of micro-plate that is placed on the rack can be determined even when using one type of rack. The rack includes a bottom piece on which micro-plate is placed; at least one shielding component for recognizing the type of micro-plate; and a recognition unit having an enclosure disposed with a shielding component. When the rack is housed in a housing unit of an analyzer main unit, the shielding component is movable with respect to the enclosure so that the shielding component is positioned either in a detection position where detectable by a sensor or in a non-detection position where undetectable by the sensor.