Moisture-Proof Transmitter Charging Assembly With Desiccant Sealing

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Solution Overview

Problem

Existing physiological signal transmitters and their charging devices face issues with moisture exposure leading to damage and reduced service life, particularly when reused, necessitating a moisture-proof assembly to prevent rust and extend usability.

Innovation Solution

A moisture-proof assembly is designed to house the transmitter and charger, featuring a charging device with a positioning mechanism, safety mechanism, and electrical connection mechanism to ensure correct alignment and prevent damage during charging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the transmitter is made reusable with a rechargeable battery, then cost reduction and environmental protection are achieved, but the device becomes vulnerable to moisture damage reducing its service life

Engineering Contradiction:
Improveservice life of transmitterVSAvoidmoisture exposure
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies the inert atmosphere principle by creating a moisture-proof environment through a cover assembly that seals the transmitter and charger. This protective enclosure isolates the electronic components from harmful moisture in the external environment, effectively creating a controlled inert atmosphere that prevents rust and damage, thereby extending the service life of the reusable transmitter.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

2Ease of operation

If the charging connector is made movable to accommodate angled electrical connection, then charging functionality is improved, but the device becomes susceptible to improper impact and damage

Engineering Contradiction:
Improvecharging alignmentVSAvoidconnector durability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies beforehand cushioning by incorporating a buffer assembly that includes a buffer member positioned between the charging connector and the external environment. This buffer member absorbs and mitigates improper impacts or forces applied to the connector during charging operations, protecting the connector from damage while allowing the necessary movement for proper alignment and electrical connection.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Volume of moving object

If the transmitter is miniaturized for long-term wear, then user comfort and functionality are improved, but moisture protection becomes more challenging

Engineering Contradiction:
Improvetransmitter sizeVSAvoidmoisture ingress
Core Design Contradiction:
Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent applies the nested doll principle by placing the miniaturized transmitter inside a protective cover assembly that seals it from moisture. The charger is also nested within the same protective environment. This nested structure allows the small transmitter to maintain its compact size for user comfort while the outer cover provides comprehensive moisture protection, solving the contradiction between miniaturization and protection.

Inventive Principle:
Principle #7Nested doll (Nesting)

4Reliability

If the charging device includes positioning and safety mechanisms, then charging reliability is improved, but the device complexity increases

Engineering Contradiction:
Improvecharging accuracyVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies merging by combining multiple functions into integrated assemblies. The cover assembly serves both as a moisture-proof enclosure and as a structural framework. The buffer assembly integrates positioning, impact protection, and connector guidance functions. This merging approach achieves reliable charging with positioning and safety mechanisms while minimizing overall structural complexity through functional integration.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3851041B1Moisture-proof assembly for preventing a physiological signal transmitter and its charging device from being damp
Publication Date: 2025.08.27 BIONIME
  • EP3851041B1 patent drawingFigure 1A
  • EP3851041B1 patent drawingFigure 1B
  • EP3851041B1 patent drawingFigure 1C

AI summary

A moisture-proof assembly (2) for keeping away from a moisture, comprises a housing (20), a cover (24), a physiological signal transmitter (7) and a desiccant (29). The housing (20) has an opening (23'). The cover (24) is detachably disposed on the housing (20), configured to seal the opening (23'), and forms an accommodating space (20') together with the housing (20). The physiological signal transmitter (7) is disposed in the accommodating space (20') for measuring and transmits a physiological signal. The desiccant (29) is disposed in the accommodating space (20') to prevent the physiological signal transmitter (7) from moisture, characterized in that: the physiological signal transmitter (7) is configured to be taken out from the accommodating space (20'), so that the physiological signal transmitter (7) can be assembled to a sensor pedestal (80) for measuring the physiological signal.