Vehicle Door Lock Terminal Positioning During Coupling Cutoff
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle door lock devices face challenges in maintaining positional accuracy of terminals with respect to the housing, leading to incomplete connections and potential operational issues with electrical components due to positional deviations during the cutting of coupling portions.
Innovation Solution
The vehicle door lock device incorporates positioning protruding portions and fitting grooves with conductive terminals that include connector pins and switch pins, which are bent at right angles and press-fitted into grooves, ensuring accurate assembly and secure cutting of coupling portions to prevent positional deviations, utilizing an assembling device with terminal clamps and punches to form electric circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If regulating portions are provided in the housing to regulate positional deviation of terminals, then positional accuracy is improved, but the regulation is not securely performed and connector pins may still deviate
Solution Approach 1:
The patent combines multiple positioning functions into a unified structure: positioning protruding portions on the housing engage with positioning holes on the terminal, while fitting grooves receive connector pins. This integrated positioning system ensures both the terminal and connector pins are securely positioned simultaneously, resolving the insufficiency of separate regulating portions.
Solution Approach 2:
The positioning protruding portions and fitting grooves are pre-formed on the housing before terminal assembly. The positioning holes are pre-formed on the terminal. This preliminary preparation ensures that when components are assembled, the positional accuracy is immediately established without requiring additional adjustment or regulation during the cutting process.
2Adaptability or versatility
If connector pins are integrally formed with terminal to connect external connectors, then connection functionality is improved, but positional accuracy of connector pins with respect to housing cannot be maintained during cutting
Solution Approach 1:
The patent segments the terminal structure into distinct functional parts: the conductive portions with coupling portions that are cut to form circuits, and the connector pins that are bent at right angles and fitted into grooves. This segmentation allows the connector pins to be positioned and secured independently from the conductive portions, maintaining their positional accuracy even when the coupling portions are cut.
Solution Approach 2:
The fitting grooves in the housing serve as intermediaries that receive and secure the connector pins. These grooves are positioned at predetermined locations and provide a stable reference frame that maintains the positional accuracy of connector pins relative to the housing, independent of the cutting operations on the conductive portions.
3Adaptability or versatility
If coupling portions are cut to form electric circuits, then circuit functionality is achieved, but positional deviation of terminal occurs leading to incomplete connection
Solution Approach 1:
The positioning protruding portions and positioning holes are pre-formed to establish accurate positional relationships before any cutting operations. This preliminary positioning ensures that even when coupling portions are subsequently cut to form circuits, the terminal maintains its correct position and connections remain complete.
Solution Approach 2:
The patent merges the positioning function with the structural components of the housing and terminal. The positioning protruding portions are integrated into the housing structure, and the positioning holes are integrated into the terminal structure. This integration ensures that positioning is inherently built into the components themselves, providing stable positional accuracy throughout the cutting and assembly process.
Data Source
AI summary
A vehicle door lock device includes: a housing; electrical components including internal pins; and a terminal electrically connected to the internal and including coupling portions coupling conductive portions. Further, electric circuits of the electrical components are formed when the conductive portions are disconnected by cutting off the coupling portions, the housing includes: positioning protruding portions that protrudes at a right angle with respect to installation portions; and fitting grooves that are opened in a direction parallel to a protruding direction of the positioning protruding portions, and the terminal includes: the conductive portions; positioning holes into which the positioning protruding portions are inserted; connector pins bent at a right angle, and are fitted into the fitting grooves; and electrical component pins bent at a right angle, and are configured to be electrically connected to the electrical components when inserted into the internal pins of the electrical components.