Soil Sensor Transmitter Cover for Tool-Free Watertight Battery Access
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Solution Overview
Problem
Existing transmitter devices for soil moisture sensors are difficult to access and prone to damage from external forces, requiring tools for maintenance and lacking protection against environmental factors.
Innovation Solution
A transmitter device with a snap-fit cover and integral ribs for tool-free vertical access, providing a water-tight seal and enhanced strength to withstand external forces, while allowing easy disassembly and protection from dust and moisture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to seal the battery compartment watertight, then water-tight sealing is improved, but tool requirement and accessibility are worsened
Solution Approach 1:
The housing is segmented into a first portion and a second portion that can be separated from each other. The cover is removably coupled to the housing, allowing the battery compartment to be accessed by simply removing the cover rather than unscrewing multiple screws. This segmentation enables tool-free access while maintaining sealing through complementary protrusions and recesses between the segments.
Solution Approach 2:
The cover is extracted as a separate, removably coupled component from the housing. This allows the cover to be easily removed for access to internal components while the housing maintains its structural integrity and water-tight sealing when assembled. The cover can be taken out and replaced without requiring tools or disassembling the main housing structure.
2Strength
If the battery compartment is located on the lower side of the sensor, then structural integrity is improved, but accessibility is worsened
Solution Approach 1:
The housing is divided into segments with the cover forming a separate accessible portion. This segmentation allows the battery compartment to be positioned optimally for structural integrity while providing easy access through the removable cover, eliminating the need to locate the compartment on the lower side where access would be difficult.
Solution Approach 2:
Access to the battery compartment is provided through a vertical dimension by making the cover vertically accessible for removal. This dimensional approach allows easy access from the top or side rather than requiring access from the lower side, resolving the conflict between structural integrity and accessibility.
3Ease of manufacture
If a simple PVC pipe construction is used, then manufacturing cost is reduced, but resistance to external forces is worsened
Solution Approach 1:
The housing is constructed using composite materials or a composite structure combining multiple components (first housing portion, second housing portion, cover) that together provide enhanced strength and resistance to external forces while maintaining ease of manufacture. The complementary protrusions and recesses create a robust assembled structure that distributes and resists external forces effectively.
Solution Approach 2:
The housing is segmented into multiple components that can be manufactured separately using simple processes like PVC pipe components, then assembled with complementary protrusions and recesses. This segmentation allows each component to be easily manufactured while the assembled structure provides enhanced strength and resistance to external forces through the interlocking design.
4Reliability
If the cover is tightly sealed with screws, then water-tight integrity is improved, but ease of disassembly is worsened
Solution Approach 1:
The housing is segmented with a removably coupled cover that provides water-tight sealing through complementary protrusions and recesses rather than screws. This segmentation enables the cover to be easily disassembled and reassembled multiple times while maintaining water-tight integrity, facilitating repairs and battery replacement without complex disassembly procedures.
Solution Approach 2:
The cover coupling transitions from a static screwed connection to a dynamic removably coupled connection. This allows the cover to be easily attached and detached as needed while maintaining water-tight sealing when closed, providing both reliability and ease of repair through a flexible, reversible connection mechanism.
Data Source
AI summary
A transmitter device (100) includes a housing (102). The transmitter device (100) has at least one battery housed within the housing (102). The transmitter device (100) has a cover (104) which at least partially covers the at least one battery. The transmitter device (100) further includes a sensor (106) electrically coupled with the at least one battery. The transmitter device (100) is installed in a ground surface. The transmitter device (100) is characterized in that the cover (104) is removably coupled with the housing (102) by a snap-fit connection such that the cover (104) is vertically accessible for removal while the transmitter device (100) remains installed. The cover (104) includes one or more recesses or protrusions (114) and the housing (102) has one or more complementary protrusions (112) or recesses for the removable coupling between the cover (104) and the housing (102), and the cover (104) includes a tab (108) or a slot which allows disassembly of the cover (104) from the housing (102). The housing (102) includes one or more integral ribs.