DIN Rail Clamping Mechanism with Toggle Lever for Secure Grounding
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Solution Overview
Problem
Existing fastening devices for electrical components on mounting or top-hat rails fail to securely attach and detach electronic components, especially those of small width, while maintaining a stable grounding contact capable of carrying lightning currents, and often require complex assembly processes.
Innovation Solution
A fastening device with a clamping mechanism featuring a fixed gripping hook and a movable clamping slide, actuated by a clamping toggle lever, which converts rotational motion into sliding motion to secure the component with a wedge bevel, providing a secure and adjustable grounding contact and allowing easy detachment with acoustic feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamping device with fixed gripping hook and movable clamping slide is used, then secure attachment of electrical components is achieved, but the assembly process becomes more complex
Solution Approach 1:
The clamping device is divided into distinct functional segments: a fixed gripping hook for engagement, a movable clamping slide for adjustment, and a force diversion mechanism with actuating element. This segmentation allows each component to perform its specific function independently, achieving reliable attachment while maintaining manageable assembly complexity through modular design.
Solution Approach 2:
The clamping slide is designed to be movable rather than fixed, allowing it to adjust dynamically during the clamping process. The force diversion mechanism enables the slide to move between open and closed positions, providing adaptive clamping that secures components of varying sizes while simplifying the assembly through dynamic adjustment rather than complex fixed structures.
2Ease of operation
If a force diversion mechanism with actuating element is added, then easy detachment with acoustic feedback is achieved, but the device structure becomes more complex
Solution Approach 1:
The force diversion mechanism incorporates acoustic feedback through the interaction between the actuating element and the clamping slide. When the slide moves between positions, audible clicks or sounds provide immediate feedback to the operator, confirming successful attachment or detachment without requiring visual inspection or complex sensing systems.
Solution Approach 2:
The force diversion mechanism acts as an intermediary between the actuating element and the clamping slide. It translates small movements of the actuating element into larger movements of the clamping slide, providing mechanical advantage and simplified operation while the acoustic feedback serves as an intermediary signal to confirm operation status.
3Adaptability or versatility
If the clamping slide is made movable, then adaptability to different component sizes is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The movable clamping slide is designed to accommodate electrical components of different sizes and configurations. By providing adjustable positioning along the guidance structure, a single clamping device design can securely attach various component types, eliminating the need for multiple specialized clamps and reducing overall manufacturing precision requirements across different variants.
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
The device ensures secure attachment and detachment of electronic components on DIN rails, maintaining a stable grounding contact capable of carrying lightning currents, while simplifying the installation and removal process, even for components with narrow housings.
Implementation Method 1
a force diversion mechanism for changing the relative position between gripping hook and clamping slide between an open position and a fastening position
Implementation Method 2
providing a secure and adjustable grounding contact
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a mounting device for an electrical component, in particular a surge protection device, located in a housing, on a mounting rail or DIN rail, comprising a clamping device with a fixed gripping hook and a movable clamping slide that can be displaced relative to the fixed gripping hook, as well as a force diversion mechanism for changing the relative position between the gripping hook and the clamping slide between an open position and a fixed position, and with an actuating element for this purpose. According to the invention, the gripping hook is designed as a conductive metallic part that can be inserted or mounted in the housing, wherein the gripping hook has a head section which, in the fixed position, mechanically engages a first leg section of the mounting rail or DIN rail, forming electrical contact surfaces. The clamping slide is movably mounted in the housing by means of a guide.In the clamping position, a free end of the slide engages a second section opposite the first leg section of the support or DIN rail and exerts a clamping force via a wedge-shaped chamfer. A pivot bearing for a clamping toggle lever is provided in the clamping slide, with a first end of the clamping toggle lever forming the actuating element and a second, bearing-side end of the clamping toggle lever engaging a fixed point.