Snap-Fit Rail Mounting Device for Electrical Modules
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Solution Overview
Problem
Existing electrical connection systems require specific configurations on rails for module assembly, limiting compatibility and complicating production and assembly processes, and often necessitate multiple components and complex assembly procedures.
Innovation Solution
A fixing device with a base and lateral branches that include slots and locking elements, allowing for the secure attachment of electrical connection modules without specific rail configurations, using backlash compensation elements and snap-fastening mechanisms to accommodate various module sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw stops are used to maintain the strip of modules, then the modules are held securely in position, but the number of component parts increases and manufacturing cost increases
Solution Approach 1:
The patent combines the retention function previously requiring separate screw stops into the rail structure itself. The rail is designed with integrated retention features including recesses that receive protruding portions of modules and lateral walls with grooves that engage with corresponding features on modules, eliminating the need for additional screw stop components.
Solution Approach 2:
The patent extracts the retention function from separate screw stop components and integrates it directly into the rail structure. The rail now contains built-in retention mechanisms through its geometric features, removing the need for external retention devices.
2Reliability
If screw stops are used to maintain the strip of modules, then the modules are held securely in position, but the assembly procedure becomes more complex
Solution Approach 1:
The patent merges the retention function into the rail structure itself, allowing modules to be retained through their geometric engagement with the rail rather than requiring separate retention components. This simplifies the assembly procedure as modules can be directly mounted onto the rail without additional retention steps.
3Reliability
If middle modules are to be dismantled, then all side modules must first be dismantled, but this complicates maintenance operations
Solution Approach 1:
The patent segments the retention of individual modules from the retention of the entire strip. Each module has its own protruding portions that engage independently with the rail's recesses and grooves, allowing any single module to be removed without affecting the retention of other modules. This enables independent access to middle modules for maintenance.
4Reliability
If specific configurations are made on rails for module assembly, then modules can be securely attached, but compatibility with diverse structures is reduced
Solution Approach 1:
The patent designs the rail with universal retention features that can accommodate various module types and configurations. The recesses and lateral groove features are designed to work with diverse module geometries, and the system can be adapted to different support structures including perforated supports, enhancing versatility while maintaining secure attachment.
5Reliability
If specific configurations are made on rails for module assembly, then modules can be securely attached, but production and assembly processes are complicated
Solution Approach 1:
The patent merges the retention features directly into the rail's basic structure, so that the retention functionality is achieved through the rail's primary geometric features rather than requiring separate components. This integrates the attachment security function into the manufacturing process of the rail itself, simplifying production.
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
The device has a base (1) including a fixing unit that cooperates with a complementary fixing unit provided on a support. Lateral branches (4) protruding opposite to one another from the base comprises a receiving unit for receiving an electrical connection module. Each branch has a first end (41) extending from the base and an opposite second free end (42). The branch has a slot (5) extending vertically from the first end and opened at the level of the second end. The slot receives a projecting portion of the module.