Sensor Housing Closure Flap for Tool-Free Maintenance
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Solution Overview
Problem
Conventional sensor housings lack easy access to internal elements and restrict flexible routing of cables, requiring destructive methods or tools for maintenance and connection changes.
Innovation Solution
A sensor housing design with a closure flap that can be opened without tools, featuring a radially extending wall section and an axially extending wall section, allowing for axial and radial cable routing, and a locking mechanism using a snap hook and elastic seal for secure cable management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the housing is closed with a cover attached by welding or fasteners, then the sensor elements are safely stored and protected, but accessibility to the sensor elements becomes virtually impossible or requires tools and destruction of the housing
Solution Approach 1:
The housing is segmented into a base body and a closure flap that can be detached. The closure flap is connected via a hinge allowing it to be opened without tools, providing easy access to sensor elements while maintaining protection when closed. This segmentation enables the housing to transition between protected closed state and accessible open state without destruction.
Solution Approach 2:
The closure flap is made dynamic through the hinge connection, allowing it to move between closed and open positions. The hinge enables tool-free opening while the snap hook provides secure closing, creating a dynamic system that adapts between protection and accessibility requirements.
2Object-affected harmful factors
If the housing is designed with a closed cover, then the sensor elements are protected from contamination, but flexible routing of cables becomes restricted to only radial guidance
Solution Approach 1:
The closure flap design adds dimensional flexibility for cable routing. Cables can exit through the closure flap in multiple directions (radially, axially, or tangentially) rather than being restricted to a single radial path. The hinge mechanism and opening capability provide additional spatial dimensions for cable management while maintaining the protective enclosure.
3Strength
If conventional closure methods are used, then the housing is securely closed, but access to internal components requires tools or destruction of the housing
Solution Approach 1:
The closure system is segmented into a hinge connection and a snap hook mechanism. The hinge provides the structural connection while the snap hook provides the secure locking. This segmentation allows the closure to be both strong and easily openable by simply releasing the snap hook without tools.
Solution Approach 2:
The snap hook mechanism is designed to be self-releasing through simple manual operation. The elastic element in the snap hook allows it to be easily disengaged from the recess by pressing a release mechanism, enabling tool-free opening for maintenance while maintaining secure closure during operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy access to internal components, flexible cable routing, and hermetic sealing, reducing manufacturing costs and improving maintenance accessibility while ensuring cable strain relief.
Implementation Method 1
a closure flap (3) made of elastic material for sealing the opening
Implementation Method 2
the locking means consists of a recess (6a) on the base body (2) and an elastic snap hook (6b) on the closure flap (3), which in the closed position locks the closure flap (3) with the base body (2)
Data Source
Figure 1~5B
Figure 2~3
Figure 4
AI summary
To enable easy handling of a sensor, a housing for a sensor is provided according to the invention, comprising a base body that is open on a first side and has an end wall on an opposite second side that closes a partial area of the second side, so that the second side has a partially closed and partially open area, and a closing flap that positively fits the partially open area of the second side and is detachably mounted on the base body, so that in a closed position of the closing flap relative to the base body, the second side of the base body is hermetically sealed by the closing flap, wherein the closing flap is designed such that it can be released from the closed position without tools by actuating an elastic closing element on the closing flap, and that it can be mounted on or off the base body without tools by means of a spring-groove connection.It is demountable if it is in an open position relative to the base body.