Mounting Rail Coupling Unit for Pre-Assembly
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Solution Overview
Problem
The existing methods for mounting rails in control cabinets require dismantling electrical devices or repeating work steps, leading to increased assembly costs and space requirements, which complicates the pre-assembly of mounting rails and increases the overall cost and space needed for control cabinets.
Innovation Solution
A mounting unit that allows a mounting rail, equipped with electrical devices, to be easily attached to a mounting plate without dismantling the devices, using a coupling element with snap hooks and bolts for secure and quick assembly, decoupling the assembly of the mounting rail from the mounting plate, enabling pre-assembly of the rail with devices before attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mounting rails are pre-equipped with electrical devices before mounting to the mounting plate, then assembly time is reduced and productivity is improved, but conventional methods require dismantling electrical devices or repeating work steps which increases assembly costs and complexity
Solution Approach 1:
The mounting system is divided into separate functional components: the mounting rail with integrated coupling elements, the mounting plate with receiving openings, and electrical devices that can be independently assembled. This segmentation allows the rail to be pre-equipped with devices at a workstation, then later mounted to the plate without dismantling, as the coupling elements provide the mounting interface independent of the electrical devices
Solution Approach 2:
Coupling elements act as intermediaries between the mounting rail and mounting plate. These elements (such as clips, snap-fit mechanisms, or threaded connectors) provide a standardized interface that allows the rail to be securely mounted without interfering with electrical devices already attached to the rail, thereby enabling pre-assembly without dismantling
2Reliability
If electrical devices are dismantled to attach the mounting rail to the mounting plate, then secure mounting is achieved, but assembly costs increase and work steps must be repeated
Solution Approach 1:
The coupling elements are pre-installed on the mounting rail during manufacturing or pre-assembly, positioned exactly where needed for mounting. This preliminary action ensures that when the rail needs to be mounted to the plate, the coupling elements are already in place and properly positioned, eliminating the need to dismantle electrical devices or perform additional positioning work during the final mounting step
3Adaptability or versatility
If space is allocated for electrical devices during mounting rail assembly, then devices can be installed, but the space required for the control cabinet increases leading to higher material and space costs
Solution Approach 1:
The mounting rail with integrated coupling elements serves multiple functions: it provides structural support for electrical devices, offers standardized mounting interfaces for secure attachment to the mounting plate, and enables flexible configuration of electrical devices along its length. This multi-functionality allows the same rail structure to accommodate devices while maintaining compact space utilization in the control cabinet
Data Source
Figure 1~2
Figure 3~5
Figure 6~8
AI summary
The invention relates to a mounting unit (20) and to a method for mounting a mounting rail (14) on a mounting panel (12) for a switchgear cabinet (1). The mounting unit (2) is used to mount the mounting rail (14) for electrical devices (15) on the mounting panel (12) for the switchgear cabinet (1) and has a coupling element (23, 24) for coupling the mounting unit (20) to the mounting rail (11) by means of a form fit.