Control Device Housing with Sliding Latch and Wedge Groove
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Solution Overview
Problem
Current control device housings inadequately protect against environmental influences such as spray and splash water, dust, dirt, and mechanical loads, and require excessive space for maintenance and repair, with covers often being too flexible and offering insufficient resistance to mechanical stress.
Innovation Solution
A housing design featuring a hood-like cover with latching means, a tab extension on the rear wall, and inclined latching slots on the side walls, allowing for secure engagement and easy removal with minimal release stroke, along with beveled edges for water drainage and cable bushings for strain relief.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cover is designed to be light and flexible for easy removal, then ease of operation is improved, but protection against mechanical stress and environmental influences deteriorates
Solution Approach 1:
The cover is divided into modular sections with integrated latching mechanisms that can be engaged or disengaged independently, allowing the cover to be removed with minimal force while maintaining structural integrity when assembled
Solution Approach 2:
The latching means incorporates elastic elements that provide automatic engagement during assembly and controlled release during disassembly, enabling the cover to transition between a rigid protected state and an easily removable state
2Strength
If the cover is made rigid to protect against mechanical stress, then strength is improved, but ease of operation deteriorates due to increased assembly/disassembly force required
Solution Approach 1:
The latching mechanism uses elastic elements that automatically engage when the cover is assembled but can be easily released by applying minimal force in the opposite direction, maintaining rigidity during operation while enabling easy maintenance
Solution Approach 2:
The latching means is pre-configured in the cover structure to engage automatically during the assembly process, eliminating the need for additional fastening operations while maintaining strong mechanical connection
3Ease of operation
If the cover design requires large free space for assembly and disassembly, then ease of operation is improved, but device complexity increases due to larger housing requirements
Solution Approach 1:
The latching mechanism operates in a vertical dimension with upwardly directed latching tabs that engage with corresponding recesses, allowing assembly and disassembly movements to be performed in a compact space without requiring extensive lateral clearance
Solution Approach 2:
The latching function is segmented into discrete tabs and recesses distributed around the cover perimeter, allowing incremental engagement and disengagement that reduces the total movement space required compared to a single-point latching system
Data Source
Figure 1~3
Figure 4~6
Figure 7~8
AI summary
The invention relates to a housing for a control unit (2), comprising a housing base (4) on which control components connectable to external units via cables are mounted, a hood-like cover (6) with an upper top wall (14), a rear wall (16), two side walls (18) and a front wall (20), on the lower edge of which recesses (22) forming cable passages (66) are formed, and with locking means arranged on the housing base (4) on one side and the cover (6) on the other side, which engage each other when the cover (6) is slid onto the housing base (4).Furthermore, it is provided that a downwardly and forwardly directed tab extension (28) is arranged on the lower edge of the rear wall (16) of the cover (6) over its entire width, which, when the cover (6) is slid onto the housing base (4), engages from back to front in an associated groove (30) formed on the housing base (4) with a forwardly wedge-shaped cross-section, and that locking and releasable locking means are provided in the front area of the cover (6) and the housing base (4), which secure the cover (6) against being lifted off and against being moved backwards.