Detection Sensor Connector Structure With Integrated PCB Terminal

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Solution Overview

Problem

Conventional detection devices are complex, heavy, and costly due to the use of multiple components, including terminal conductors and wiring, which complicates assembly and reduces reliability.

Innovation Solution

A detection device configuration featuring a flat-plate circuit substrate with integrated printed wiring and a connector terminal extension plate, where the circuit substrate is fixed near the base of the connector terminal, and a dual-housing structure with a partition member to simplify assembly and reduce component count.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If terminal conductors and wiring conductors are used to connect the circuit substrate to the connector, then electrical connection is achieved, but the number of components increases and weight increases

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent integrates the terminal conductor and wiring conductor functions into a single integrated conductor structure. The terminal conductor is formed as an integral part of the circuit substrate, eliminating the need for separate wiring conductors and reducing the total number of components while maintaining electrical connection reliability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated conductor structure serves multiple functions simultaneously: it acts as both the terminal conductor for external connections and the wiring conductor for internal circuit connections. This multi-functional design reduces component count while achieving the same electrical connectivity.

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

2Reliability

If terminal conductors and wiring conductors are used with multiple connection operations, then electrical connection is established, but assembly operation complexity increases

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidassembly operation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple assembly operations into a single integrated structure. The terminal conductor is pre-formed as part of the circuit substrate, eliminating the need for separate connection operations between terminal conductors and wiring conductors, thereby simplifying assembly while maintaining connection reliability.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If multiple connection portions are used to connect terminal conductors and wiring conductors, then electrical connectivity is achieved, but reliability of endurance decreases

Engineering Contradiction:
Improveelectrical connectivityVSAvoidendurance reliability
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent merges multiple connection portions into a single integrated conductor structure. By eliminating the interfaces between separate terminal conductors and wiring conductors, the design reduces the number of potential failure points and improves endurance reliability while maintaining electrical connectivity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3822589B1Detection device
Publication Date: 2023.11.01 MIKUNI CORP
  • EP3822589B1 patent drawingFigure 1
  • EP3822589B1 patent drawingFigure 2
  • EP3822589B1 patent drawingFigure 3

AI summary

A detection device of the present invention is provided with: a housing (10); a circuit substrate (20) disposed in the housing; a sensor (30) which is electrically connected to the circuit substrate and detects information of an object to be measured; a connector terminal (24) which is formed integrally with the circuit substrate and electrically connected to an external terminal; and a tubular connector (11h) which is formed integrally with the housing, surrounds a periphery of the connector terminal, and is fitted in the external connector. Through this configuration, the reduction in the number of components, the reduction in cost and weight, the simplification of structure, and other effects can be achieved.