Sensor Mounting Member Structure for Precise Axis Alignment

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing sensor devices face challenges in downsizing and accurate positioning on circuit boards, often resulting in tilted detection axes and increased size due to housing in casings, which degrades detection accuracy.

Innovation Solution

A sensor device with a mounting member having a space inside and fixation surfaces for sensor components, allowing easy and accurate positioning while achieving downsizing, and incorporating a rigid-flexible board for flexible arrangement and reduced vibration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sensor devices are housed in a casing composed of a pedestal and a lid member, then the sensor devices are protected, but the size of the sensor devices grows

Engineering Contradiction:

Improveprotection of sensor devicesVSAvoidsize of sensor devices

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The mounting member is integrated into the casing structure, serving both as a mounting platform for sensor devices and as a structural component of the casing itself. This merging eliminates the need for separate mounting structures and reduces overall device volume while maintaining protection.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The mounting member performs multiple functions: it provides mechanical support for sensor devices, serves as part of the casing structure, and enables accurate positioning. This multi-functionality reduces the number of separate components needed, thereby reducing overall size while maintaining protective functionality.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of manufacture

If sensor devices are fixed obliquely to the casing, then the sensor devices can be mounted, but the detection axes of the sensor devices are tilted to degrade the detection accuracy

Engineering Contradiction:

Improvemounting of sensor devicesVSAvoiddetection accuracy

Core Design Contradiction:

Ease of manufactureVSMeasurement precision

Solution Approach 1:

The mounting member is pre-designed with fixation surfaces that are precisely oriented to ensure sensor devices are mounted in the correct angular position. This preliminary preparation of the mounting structure eliminates the need for oblique fixation and ensures detection axes are properly aligned, thereby maintaining detection accuracy while facilitating ease of manufacture.

Inventive Principle:

Principle #10Preliminary action

3Volume of moving object

If sensor devices are mounted directly on the circuit board, then the device size is reduced, but it is difficult to mount the sensor devices

Engineering Contradiction:

Improvedevice sizeVSAvoidmounting difficulty

Core Design Contradiction:

Volume of moving objectVSEase of manufacture

Solution Approach 1:

The mounting member acts as an intermediary component between the circuit board and the sensor devices. It provides a standardized interface that simplifies mounting operations while keeping the overall device size compact. The mounting member can be pre-assembled with sensor devices and then mounted as a unit on the circuit board, reducing manufacturing difficulty.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12436006B2Sensor device and electronic apparatus

Publication Date: 2025.10.07 SEIKO EPSON CORP

AI summary

A sensor device includes a mounting member having fixation surfaces inside, and at least one electronic component directly or indirectly fixed to the fixation surfaces of the mounting member, and the mounting member constitutes a part of a casing for housing the electronic component. Further, the fixation surfaces are perpendicular to each other.