Miniaturized Sensor Housing With Replaceable Power Supply
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing window and door sensors for alarm systems are miniaturized but have a non-replaceable power source, requiring the entire sensor to be replaced when the power source is depleted, which is costly and wasteful due to their fragile design.
Innovation Solution
A sensor design with a base and cover forming a housing that allows easy access to the power supply without disassembling the device, using a printed circuit with cavities for the power source and electronic components, and a solder joint for reinforcement, enabling the power supply to be replaced without damaging the sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the sensor is miniaturized with integrated components in a thin housing (less than 5mm), then the sensor achieves compact size for easy mounting in gaps and cavities, but the power supply becomes enclosed and non-replaceable, requiring entire sensor replacement when power is depleted
Solution Approach 1:
The housing is divided into a removable portion and a fixed portion, allowing the power supply to be accessed and replaced by removing only the removable portion rather than disassembling the entire sensor. This segmentation enables maintenance of the compact form factor while providing power supply replaceability.
Solution Approach 2:
The power supply is extracted from full enclosure within the housing by providing an access opening through the removable portion of the housing. This allows the power supply to be taken out and replaced without destroying the fragile sensor components, resolving the contradiction between miniaturization and repairability.
2Reliability
If the sensor housing comprises several parts bonded together to ensure watertightness, then the sensor achieves robust sealing, but the power supply cannot be accessed or removed after assembly
Solution Approach 1:
The housing is segmented into removable and fixed portions that can be separated to access the power supply. The removable portion maintains the watertight seal when attached but can be removed for power supply replacement, balancing reliability with operational accessibility.
Solution Approach 2:
The housing transitions from a static sealed structure to a dynamic structure where the removable portion can be detached and reattached. This dynamic design allows the housing to provide both sealing protection during operation and access during maintenance.
3Length of moving object
If the sensor is made thin (less than 5mm) for compact installation, then the sensor requires no frame modifications, but the sensor becomes fragile and cannot withstand disassembly
Solution Approach 1:
The housing is segmented so that only the removable portion needs to be manipulated for power supply access, while the main sensor body remains protected. This allows thin construction for compactness while providing structural protection during maintenance operations.
Solution Approach 2:
The removable portion of the housing acts as an intermediary element that can be removed and reattached without applying stress to the fragile sensor components. This mediator allows power supply replacement while protecting the thin sensor structure from damage.
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
The present invention relates to an electronic device comprising: - a base (1), - a cover (2), - electronic components intended to be powered by an electrical supply, the base (1) and the cover (2) forming a housing (10, 10', 15, 15') comprising said electrical supply, the base (1) is constituted by a first printed circuit in which the electronic components are integrated, the first printed circuit comprises a first wall (7) comprising a first assembly face (9) comprising a first cavity (10, 10') for receiving said electrical supply and open on a first slice (11) of the first wall (7), the cover (2) comprises a second wall (12) comprising a second assembly face comprising a second cavity (15, 15') for receiving said electrical supply and open on a second slice (16) of the second wall (12).