Circular Connector Contacts for High-Current Transmission
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Solution Overview
Problem
The existing charging or data transmission interfaces in mobile terminals, such as USB ports, have limited functionality and contact points, which restricts the efficiency of charging and data transfer capabilities.
Innovation Solution
A female and male connecting member design with multiple rows and columns of contacts arranged in a circular groove or boss configuration, allowing for increased contact points and efficient data or current transmission, along with a spring mechanism for secure engagement and disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If USB port with few contacts is used, then device complexity is reduced, but transmission efficiency and functionality are limited
Solution Approach 1:
The patent transitions from traditional linear or grid contact arrangements to a circular cross-sectional dimension, organizing contacts in N rows along the depth direction with M contacts distributed along the circumferential direction. This dimensional change allows for N*M contacts within a compact circular profile, significantly increasing contact density without proportionally increasing the connector's external dimensions, thereby improving transmission efficiency while controlling device complexity.
Solution Approach 2:
The contacts are segmented into N distinct rows along the depth direction of the groove, with each row containing M contacts distributed circumferentially. This segmentation allows for systematic organization of multiple contacts, enabling independent routing and functionality for each contact row, which enhances transmission capabilities while maintaining manageable structural complexity through modular contact arrangement.
2Quantity of substance
If multiple contacts are arranged in N rows and M columns, then contact area and transmission capability are improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent employs a circular cross-sectional geometry for the groove and boss structures, with contacts distributed along the circumferential direction. This curved, symmetric geometry provides natural radial reference lines for contact positioning, simplifying the manufacturing process compared to rectangular arrangements. The circular profile ensures uniform stress distribution and facilitates precise contact placement through rotational symmetry, reducing the difficulty of maintaining positioning precision across N*M contacts.
Solution Approach 2:
By organizing contacts in N rows along the depth direction with M contacts distributed circumferentially, the patent creates a three-dimensional contact matrix within a circular profile. This spatial arrangement allows for systematic positioning of each contact at specific radial and axial coordinates, enabling precise manufacturing through standardized tool paths and fixtures while maximizing the number of contacts within the available volume.
3Productivity
If N*M contacts are distributed in circular pattern, then data transmission efficiency is enhanced, but device structure becomes more complex
Solution Approach 1:
The patent merges the female connector's groove structure with the male connector's boss structure, where the groove and boss are designed as complementary circular features that engage with each other. This merging of structural elements achieves multiple functions simultaneously: providing mechanical alignment, defining the circular contact arrangement geometry, and enabling the N*M contact configuration. The integrated groove-boss design reduces the need for separate alignment features, thereby enhancing data transmission efficiency while controlling overall structural complexity.
4Quantity of substance
If contacts are arranged in N rows along depth direction with M contacts circumferentially, then contact density is increased, but assembly precision requirements increase
Solution Approach 1:
The circular cross-sectional geometry of the groove and boss provides inherent radial reference lines that simplify the assembly process. When the male boss is inserted into the female groove, the circular profile naturally guides the circumferential positioning of contacts, ensuring that M contacts in each row align correctly. This curved geometry converts a potentially complex multi-dimensional alignment problem into a simpler rotational insertion operation, increasing contact density while maintaining reasonable assembly precision requirements.
Data Source
AI summary
The present disclosure relates to a female connecting member and a male connecting member, a connector, a mobile terminal and an electronic equipment, wherein the female connecting member includes a first end face, the first end face has a first groove, the first groove is defined by a first side face and a first bottom face encompassed by the first side face, the first side face is provided with N*M contacts, the contacts are arranged in N rows along a depth direction of the first groove, N is an integer greater than or equal to 2, each row includes M contacts distributed along a circumferential direction of the first side face, and M is an integer greater than or equal to 2. In this way, enough contacts can be provided to improve the transmission efficiency of current or data, thus meeting the needs of fast charging or large-flow data transmission.