Switchgear Cabinet Crossbeam Mounting with Pivotable Brackets
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Solution Overview
Problem
The assembly of existing switch cabinets requires increased technical effort and time due to the complexity of attaching traverses between frame profiles, which hampers efficiency and convenience.
Innovation Solution
A pivotable bracket with projections is used to facilitate the attachment of traverses between frame profiles, allowing for adjustable positioning and secure engagement with fastening openings, along with a safety mechanism to prevent accidental disengagement, thereby simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional rigid bracket is used to attach the crossbeam to frame profiles, then the mounting position is fixed and stable, but the assembly time and technical effort increase due to alignment difficulties
Solution Approach 1:
The bracket is designed with a pivotable connection to the crossbeam, allowing it to rotate between a retracted position (during installation) and an extended position (during operation). This dynamic feature enables the bracket to adapt to different spatial requirements: it can be positioned to avoid snagging during assembly, then locked into place to provide stable support during use, thereby resolving the contradiction between assembly speed and mounting stability.
2Reliability
If the bracket is positioned to extend far from the crossbeam for stable mounting, then the mounting stability improves, but the risk of snagging on frame profiles during installation increases
Solution Approach 1:
The pivotable bracket allows dynamic adjustment of its position relative to the crossbeam. During installation, it can be retracted to minimize snagging risk. Once installed, it extends to provide stable mounting. This dynamic repositioning resolves the contradiction between stability and snagging risk.
Solution Approach 2:
The bracket is designed to be positioned in an optimal configuration before the crossbeam is fully installed. By preliminarily adjusting the bracket to a retracted position, the installation process is facilitated, avoiding snagging issues. After installation, the bracket is secured in its extended position for stable operation.
3Length of stationary object
If the crossbeam is made longer to reach between frame profiles, then the frame coverage improves, but the risk of snagging on cabinet components increases
Solution Approach 1:
The pivotable bracket allows the effective length of the crossbeam to be dynamically adjusted. When the bracket is retracted, the crossbeam can be positioned closer to the frame profiles without snagging. When extended, it provides sufficient reach. This resolves the contradiction between reach and snagging risk.
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
This solution reduces the assembly time and effort by enabling quick and stable attachment of traverses, enhancing the frame's stability and ease of use, while minimizing the risk of misalignment or disengagement during installation.
Implementation Method 1
at least one pivotable bracket with projections (6) which can be attached to the crossbeam (4)
Implementation Method 2
The protrusions can advantageously be hook-shaped, which allows them to hook onto the edge within a hole and provides increased stability for the truss bearing
Implementation Method 3
the crossbeam is secured against pivoting by a locking clip that is inserted into a corresponding opening through the bracket and the crossbeam
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A control cabinet with a frame comprising vertical frame profiles and at least one crossbeam (4) arranged between the frame profiles, the frame profiles having mounting openings to which the crossbeam (4) can be attached. To attach the crossbeam (4), a pivotable bracket (7) and a fixed bracket (8) are provided at each of its two ends. The brackets (7, 8) have projections (6) which engage in the mounting openings of the frame when the crossbeam (4) is installed. To prevent the bracket (7) from pivoting when installed, a locking clip (9) is inserted into an opening (10) provided in the bracket (7) and in the crossbeam (4) adjacent to the pivot axis (A).