Rail-Mounted Modular Electronics With Tool-Free Locking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current modular electronic assemblies are not compatible with restricted spaces due to their dimensions, require tools for module installation/removal, and necessitate modules to be positioned next to each other, limiting flexibility and usability.
Innovation Solution
A modular electronic assembly with a rail system featuring slots, cavities, and a locking mechanism that allows modules to be reversibly attached without tools, enabling reduced dimensions and flexible positioning, including adjacent or remote slots, and integrating various functions like wireless modems and motor controllers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If modules are locked to the backplane by screwing, then the connection is secure and reliable, but it requires specific tools for installation and removal, reducing ease of operation
Solution Approach 1:
The locking mechanism is segmented into discrete locking elements (lugs or clips) that can be independently actuated. Each locking element can be engaged or disengaged separately, allowing for tool-free operation while maintaining secure connection. The segmentation enables the locking function to be distributed across multiple simple mechanical features rather than requiring a complex screw-fastening system.
Solution Approach 2:
The locking mechanism is designed to be self-servicing, where the module's own structural features (such as integrated lugs or clips) perform the locking function without requiring external tools. The module can be locked into place by simply inserting it into the rail, and unlocked by manual manipulation of the locking elements, eliminating the need for screwdrivers or other specialized tools.
2Area of stationary object
If modules are positioned next to one another on a backplane, then the assembly is compact and organized, but it limits flexibility in positioning and reduces adaptability to different configurations
Solution Approach 1:
The system transitions from a static, fixed positioning arrangement to a dynamic, adjustable configuration. Modules can be moved along the rail to different positions and reconfigured as needed. The locking mechanism allows modules to be easily relocated from adjacent positions to remote positions or vice versa, enabling the system to adapt to changing functional requirements while maintaining a compact overall footprint.
Solution Approach 2:
The rail system serves multiple functions: it provides structural support, enables modular assembly, allows for flexible positioning, and facilitates easy reconfiguration. The same rail and locking mechanism work whether modules are positioned adjacent to each other or at remote intervals, making the system universally applicable to various configuration needs without requiring different mounting structures.
3Ease of manufacture
If the backplane has standard dimensions, then it is easy to manufacture and integrate into electrical cabinets, but it is not compatible with use in restricted spaces
Solution Approach 1:
The design shifts the constraint from the depth dimension to the lateral dimensions. By using a rail system that extends horizontally rather than requiring deep vertical mounting, the assembly can maintain standardized manufacturing dimensions in most directions while reducing the critical depth dimension to fit restricted spaces. The rail's elongated structure along the X-axis accommodates modules in a plane rather than requiring significant depth.
Data Source
AI summary
An assembly including: a rail which includes a base housing an electronic board and defining a plurality of slots, the base including a first cavity and two second cavities in each slot; and a module configured to be mounted and held fixedly and reversibly in a slot in the rail in a so-called operative position, the module including a housing including a retaining member projecting outward from the housing, an electronic board housed in the housing, and a locking member including a lever with two hooks. The assembly being such that when the module is in the operative position in a slot in the rail: the retaining member is inserted into the first cavity of the base, and each hook is inserted into a second cavity of the base.