Direct-Solder Connector Structure for Mounting Error Compensation

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Solution Overview

Problem

Existing connectors in electronic devices face challenges with complex mounting processes and reliability issues due to the need for multiple steps and components, leading to reduced efficiency and increased difficulty in connecting conductive cores to circuit boards.

Innovation Solution

A connector design featuring a housing with a conductive core and a fastening structure, including a nut and shoulder, allows direct soldering to a circuit board, and incorporates a sliding conductive core and flexible connection portions to compensate for mounting errors and reduce stress on solder legs, enhancing stability and reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a cable is used to electrically connect the conductive core and the circuit board, then the connector can be mounted, but the mounting steps become complex and connection reliability problems occur

Engineering Contradiction:
Improveconnection reliabilityVSAvoidmounting steps complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and removes the cable from the connection system. The conductive core is directly soldered to the circuit board, eliminating the cable as an intermediate component. This reduces mounting complexity while improving connection reliability by reducing potential failure points.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the conductive core directly with the circuit board through soldering. The housing integrates the conductive core, allowing it to be positioned and soldered directly to the circuit board without requiring separate cable connection steps, thereby simplifying the mounting process.

Inventive Principle:
Principle #5Merging (Combining)

2Productivity

If multiple mounting steps and components are used, then the connector can be assembled, but the mounting process becomes time-consuming and efficiency decreases

Engineering Contradiction:
Improvemounting efficiencyVSAvoidmounting time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The conductive core is pre-integrated into the housing during manufacturing, with the solder leg extending from the housing. This preliminary integration eliminates the need for separate assembly steps during mounting, allowing the connector to be quickly positioned and soldered to the circuit board.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The housing and conductive core are merged into a single integrated component. The housing contains the conductive core and provides the mounting structure, eliminating the need for separate mounting steps for each component and significantly reducing mounting time.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the conductive core is rigidly fixed, then the connection is stable, but mounting errors cause stress on solder legs and reduce reliability

Engineering Contradiction:
Improveconnection stabilityVSAvoidsolder leg strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent changes the mechanical parameter of the conductive core from rigid to flexible. The conductive core is designed with flexibility to allow slight deformations that accommodate mounting errors, preventing stress concentration on the solder legs while maintaining electrical connection stability.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The flexible conductive core acts as a cushioning element that absorbs mounting errors before they can transmit stress to the solder legs. This beforehand cushioning protects the solder joints from damage due to misalignment or dimensional variations during assembly.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentEP4712340A2Connector and electronic device
Publication Date: 2026.03.18 HUAWEI DIGITAL POWER TECH CO LTD
  • EP4712340A2 patent drawingFigure 1~2
  • EP4712340A2 patent drawingFigure 3
  • EP4712340A2 patent drawingFigure 4

AI summary

This application provides a connector and an electronic device, to resolve a technical problem of poor mountability of the connector. The connector provided in this application includes a housing, a conductive core, and a fastening structure. The housing has a channel that passes through a first end and a second end of the housing. The conductive core is disposed in the channel. A solder leg is disposed on one end of the conductive core, and the solder leg protrudes from the first end of the housing, and is configured to be soldered to a circuit board. The fastening structure is configured to fasten the housing to a panel. According to the connector provided in this application, the conductive core may be directly soldered to the circuit board, so that a connection effect between the conductive core and the circuit board can be improved, and mounting steps can be reduced.