Modular Detector Assembly with Removable Sensor Module
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Solution Overview
Problem
Existing detector assemblies that combine smoke and carbon monoxide detection require the entire unit to be replaced when the carbon monoxide sensors reach the end of their service life, leading to wasteful disposal of functional smoke detectors.
Innovation Solution
A modular detector assembly design that allows for the removal and replacement of individual detecting modules, such as a self-contained carbon monoxide module, which can be swapped with other types of detecting modules like heat detectors, without necessitating the replacement of the entire unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stand-alone carbon monoxide detector is used separately from a smoke detector, then the carbon monoxide detection function is achieved, but the user must purchase two separate devices which increases cost and installation effort
Solution Approach 1:
The patent combines the smoke detector and carbon monoxide detector into a single integrated unit with a common housing and shared alarm mechanism. The smoke detection chamber and carbon monoxide detection chamber are housed together with a single power source and alarm device, eliminating the need for two separate devices while maintaining both detection functions.
2Device complexity
If an integrated smoke/carbon monoxide detector is used, then the cost and installation effort are reduced, but the entire unit must be replaced once the carbon monoxide sensors reach service life
Solution Approach 1:
The patent divides the integrated detector into separable modules: a permanent housing containing the smoke detector and alarm device, and a removable detection module containing the carbon monoxide sensors. This allows the carbon monoxide module to be detached and replaced independently while the functional smoke detector housing remains in place and continues to operate.
3Reliability
If the entire integrated unit is replaced when carbon monoxide sensors expire, then the carbon monoxide detection function is maintained, but waste increases and installation effort increases
Solution Approach 1:
The patent enables the user to discard only the expired carbon monoxide detection module while recovering and retaining the functional housing, smoke detection chamber, and alarm device. The removable module design facilitates selective replacement of only the consumable sensor component, reducing waste of durable components.
4Loss of substance
If a modular design with removable detecting modules is implemented, then waste and installation costs are reduced, but the device structure becomes more complex
Solution Approach 1:
The patent implements segmentation by creating a removable detection module that can be detached from the housing. The module includes the carbon monoxide sensors mounted on a circuit board assembly that interfaces with the housing through electrical connectors, allowing modular replacement while maintaining overall system functionality.
Solution Approach 2:
The housing is designed to accommodate different types of detection modules through standardized interfaces. The same housing can work with smoke detection modules, carbon monoxide detection modules, or other sensor modules, providing universal functionality and reducing the need for multiple specialized housings.
Data Source
Figure 1
Figure 2~3
AI summary
A detector assembly includes a base; a detector chamber removably attached to the base; a detecting module removably secured between the base and the detector chamber, the detecting module including: a detecting module printed circuit board; a sensor mounted to the printed circuit board; a controller mounted on the printed circuit board, the controller generating alarm signal in response to the sensor.