Mechanically Coded Surge Protective Device Module Insertion
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Solution Overview
Problem
The existing mechanisms fail to effectively prevent the incorrect insertion of detachable modules into surge protective devices based on voltage mismatch, which can lead to material damage and safety hazards for installers, as they lack a standardized method for ensuring correct voltage compatibility during installation.
Innovation Solution
A mechanically coded mechanism is introduced, featuring vertical grooves on the base part and the module with specific pin arrangements, where the module's pins are designed to fit only into corresponding grooves, preventing incorrect voltage modules from being inserted by colliding with pins when rotated by 0° or 180°, ensuring correct voltage compatibility through a unique combination of full and free grooves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vertically arranged pin system is used for coding modules according to voltage, then the insertion of correctly matched modules is enabled, but the mechanism fails to prevent insertion of modules with wrong voltage
Solution Approach 1:
The patent applies asymmetry by providing vertical grooves in the base part at specific positions (first groove in center, fourth groove inverted, with second and third grooves on opposite sides) that create an asymmetric pin arrangement. The module housing has corresponding asymmetric grooves that only align with the base part grooves when the module is correctly oriented (0° or 180° rotation), preventing incorrect voltage modules from being inserted due to pin collision
Solution Approach 2:
The patent introduces a new dimension to the coding mechanism by using the vertical arrangement of grooves and pins in combination with rotational orientation (0° or 180°). This adds an orientational dimension to the traditional linear pin arrangement, creating a more robust coding system that prevents false insertion through spatial geometry rather than just voltage matching
2Reliability
If a mechanically coded mechanism with vertical grooves and pins is implemented, then false insertion is prevented, but the device complexity increases
Solution Approach 1:
The patent segments the coding mechanism into distinct components: the base part with its specific vertical groove arrangement (first groove 15, fourth groove 16, second grooves 11-12, third grooves 13-14, fifth grooves 11'-12', sixth grooves 13'-14'), the module with corresponding grooves (seventh grooves 21-22, eighth grooves 21'-22', ninth grooves 23-24, tenth grooves 23'-24'), and the pins (25, 26) that physically implement the coding. This segmentation allows each component to be manufactured independently and assembled, managing complexity through modularity
Solution Approach 2:
The mechanism is designed to be self-checking through the asymmetric groove and pin arrangement. When a module is attempted to be inserted, the pins automatically collide with the base part pins if the voltage coding does not match, preventing insertion without requiring external verification systems. The system serves itself by using its own structural features to verify compatibility
3Reliability
If pins are arranged to collide when voltage mismatches, then incorrect modules are blocked, but the installation process becomes more difficult
Solution Approach 1:
The patent implements preliminary anti-action by pre-arranging the vertical grooves and pins in specific asymmetric positions in the base part and module before insertion occurs. The coding structure is prepared in advance with first groove 15, fourth groove 16, and associated pins positioned to create predetermined collision points that activate only when voltage coding mismatches, blocking incorrect modules before they can be fully inserted
Data Source
AI summary
The technical problem solved by the present invention is a constructional solution to a mechanically coded mechanism designed to prevent a false insertion of a detachable module into a base part of a surge protective device subject to voltage. The essence of the mechanically coded mechanism designed to prevent a false insertion of a detachable module into a base part of a surge protective device according to voltage lies in that the bottom of the base part intended for the arrangement of the detachable module is provided with vertical grooves, into which a coded combination of first pins is arranged according to the voltage, for which the detachable module is embodied. The housing of the detachable module [N2]is provided with grooves in the same verticals intended for the arrangement of a coded combination of second pins arranged on positions, in which there are no first pins in the base part.