Data Acquisition Device With Polymer-Sealed Battery Housing

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Solution Overview

Problem

Existing data acquisition devices for monitoring tool motors are bulky due to the need for removable caps and sealing gaskets, which complicates design and production, and are not adequately water-resistant.

Innovation Solution

A data acquisition device with a non-removable polymeric layer sealing the battery compartment, eliminating the need for removable caps and gaskets, resulting in a more compact and robust design that is easier to manufacture and provides better water resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If removable caps and sealing gaskets are used to protect the battery compartment, then water resistance is achieved, but the device becomes bulky and complex

Engineering Contradiction:
Improvewater resistanceVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sealing function is merged into the casing itself through an integrated polymeric layer that forms a monolithic structure. This eliminates the need for separate caps and gaskets, achieving water resistance while reducing structural complexity and device bulk

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sealing function is extracted from separate components (caps and gaskets) and integrated into the casing structure itself. The polymeric layer becomes an inherent part of the casing, removing the need for additional removable parts while maintaining water protection

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If removable caps and sealing gaskets are used to protect the battery compartment, then water resistance is achieved, but the device becomes bulky

Engineering Contradiction:
Improvewater resistanceVSAvoiddevice volume
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The sealing function is merged into the casing itself through an integrated polymeric layer that forms a monolithic structure. This eliminates the need for separate caps and gaskets, achieving water resistance while reducing structural complexity and device bulk

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

A thin polymeric layer is used to provide sealing functionality without adding significant bulk. The flexible nature of the polymeric material allows it to conform to the battery compartment opening while maintaining a compact overall device structure

Inventive Principle:
Principle #30Flexible shells and thin films

3Ease of operation

If removable caps with sealing gaskets are used, then the battery can be removed, but the device requires complicated design and production

Engineering Contradiction:
Improvebattery accessibilityVSAvoidmanufacturing complexity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The sealing function is merged into the casing itself through an integrated polymeric layer that forms a monolithic structure. This eliminates the need for separate caps and gaskets, achieving water resistance while reducing structural complexity and device bulk

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The battery compartment is segmented from the main casing body, allowing the battery to be accessed and replaced through a dedicated opening while the rest of the device maintains its sealed, integrated structure

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4314720B1Data acquisition device
Publication Date: 2025.10.08 EMAK
  • EP4314720B1 patent drawingFigure 1~2
  • EP4314720B1 patent drawingFigure 3~4
  • EP4314720B1 patent drawingFigure 5~6

AI summary

A data acquisition device (1,1') for monitoring an operating parameter of a tool (5) provided with a motor is described, said device comprising: an electronic assembly (10) provided with a sensor (15) configured to wirelessly monitor a variable indicative of the operational parameter of the tool (5), a power supply battery (35) which powers the electronic assembly (10), and a casing (55,55') defining a housing seat (60) of the electrical power supply battery (35) and which is provided with an opening (65) for inserting the electrical power supply battery (35) into the housing seat, wherein the opening (65) is sealed by a layer of polymeric material (100,105).