Cell-Voltage Detection Connector Tolerance Correction
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Solution Overview
Problem
Existing multipole cell-voltage detection connectors face challenges with accumulated tolerance variations, leading to inadequate terminal arrangements, increased man-hours for assembly, and a risk of connector damage during forced fitting, limiting downsizing and efficiency.
Innovation Solution
A cell-voltage detection connector with a correction mechanism that includes deformable plate-shaped terminals and an aligning mechanism, allowing for the correction of accumulated tolerance through through-holes and guide parts, enabling lump insertion and preventing damage during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If terminals are inserted and removed one by one to accommodate tolerance variations, then the arrangement of components becomes adequate, but assembly time increases and productivity decreases
Solution Approach 1:
The plate-shaped terminals are designed to be deformable, allowing them to dynamically adjust their positions during assembly. The guide parts provide a dynamic guidance path that accommodates tolerance variations while maintaining proper terminal arrangement, eliminating the need for slow manual adjustment
Solution Approach 2:
The correction mechanism enables the terminals to self-correct their positions during the assembly process. As the male connector is inserted into the female connector, the deformable plate-shaped terminals automatically adjust to accommodate tolerance variations through the guide parts, eliminating manual intervention
2Measurement precision
If multiple multipoles are used to detect cell voltages, then detection capability improves, but accumulated tolerance increases causing pitch displacement
Solution Approach 1:
The deformable plate-shaped terminals can dynamically adjust their positions to compensate for accumulated tolerance in multipole configurations. This allows multiple terminals to be used for comprehensive cell voltage detection while maintaining accurate pitch alignment through automatic deformation
3Reliability
If terminals are forcedly fitted to correct pitch displacement, then connection is achieved, but connector and peripheral components may be destroyed
Solution Approach 1:
The deformable plate-shaped terminals provide a dynamic solution that achieves reliable connection without forced fitting. The terminals naturally deform to accommodate pitch variations, eliminating the need for excessive force that could damage the connector structure
Solution Approach 2:
The guide parts are designed with beforehand cushioning features that absorb and accommodate tolerance variations before the terminals make final contact. This prevents shock and excessive force from being transmitted to the connector structure during assembly
4Volume of moving object
If connector size is reduced for downsizing, then space efficiency improves, but tolerance accumulation becomes more critical
Solution Approach 1:
The deformable plate-shaped terminals enable downsizing of the connector while maintaining tolerance compensation capability. In compact configurations, the ability of terminals to dynamically deform becomes even more valuable for absorbing the more critical tolerance accumulations that occur in smaller, more densely packed arrangements
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 solution effectively corrects terminal pitch tolerance, improves workability, and prevents connector damage by allowing smooth fitting of male and female connectors, reducing assembly errors and increasing efficiency.
Implementation Method 1
a correction mechanism that is configured to deform the plate-shaped terminals to correct an accumulated tolerance
Implementation Method 2
a plurality of through-holes through which the plurality of plate-shaped terminals pass, and guide parts that are formed to be widened toward a side where the plate-shaped terminals are inserted
Data Source
AI summary
To provide a technique by which an accumulated tolerance caused by the arrangement of terminal fittings is eliminated to improve the workability in a multipole cell-voltage detection connector. When all of receptacle terminals (94) are inserted into receptacle insertion groove parts (22), each of the receptacle terminals (94) is buckled at a bending hole (97) and a mark-off part (98) formed as a boundary of a receptacle root part (95) and a receptacle front part (96). Because the receptacle insertion groove parts (22) are formed in a state where there is substantially no tolerance, the terminal pitch tolerance correction housing (10) is fitted to receptacle units (90), and the receptacle terminals (94) (receptacle front parts (96)) protruded from the receptacle insertion groove parts (22) toward a bottom inner surface (15) are corrected to a state where there is no tolerance.