Hinged Power Cable Connector for Quick Clamping Without Cable Bending

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Solution Overview

Problem

Existing power cable connectors are not convenient for clamping and removing, and they cannot ensure that the power cable will not be bent after connection, posing a technical challenge in the industry.

Innovation Solution

A power cable connector with a base part and a pressing part, where the base part includes a conductive sheet and mounting positions, and the pressing part is hinged to the base, allowing for easy assembly and use without bending the power cable.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional insulating tape is used to wrap the cable, then the cable connection can be achieved, but the wrapping is not reliable, easy to loosen, and the insulating tape is likely to fall off over time

Engineering Contradiction:
Improvecable connection reliabilityVSAvoidinstallation and removal convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent uses a disposable insulating sleeve that is discarded after a single use. The sleeve is inserted over the cable connection, provides immediate insulation, and is then removed and discarded, eliminating the need for reusable complex mechanisms while maintaining reliability during the critical connection phase.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The insulating sleeve is divided into multiple segments or sections that can be easily manipulated and positioned around the cable connection. This segmentation allows for simple installation by sliding the sections into place and ensures reliable insulation coverage without requiring complex wrapping techniques.

Inventive Principle:
Principle #1Segmentation

2Reliability

If each cable is clamped using a cable clamp, then the cable connection can be achieved, but every two adjacent cables need to be staggered to avoid aging and short circuit, and the cable clamp is not reusable

Engineering Contradiction:
Improvecable connection reliabilityVSAvoidclamping structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple insulation and clamping functions into a single integrated insulating sleeve structure. Instead of using separate cable clamps for each cable that require staggering, the sleeve provides unified insulation and positioning for multiple cables simultaneously, reducing structural complexity while maintaining connection reliability.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If connectors in the prior art are used, then cable connection can be achieved, but they cannot ensure that the power cable will not be bent after being connected

Engineering Contradiction:
Improvecable connection stabilityVSAvoidinstallation convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The insulating sleeve is designed with pre-formed structural features that guide and protect the cable positioning before final connection is made. The sleeve's geometry is predetermined to prevent bending, and it is installed in advance to establish proper cable alignment and protection before the connection is completed and secured.

Inventive Principle:
Principle #10Preliminary action

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 connector allows for quick and easy connection and disconnection of power cables without causing bending, improving installation efficiency and reducing the risk of damage to the cables.

Implementation Method 1

an elastic piece (21, 22) mounted in the elastic piece mounting position (13)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a knife switch (8), an upper end of the first leg (17) is connected to an upper end of the second leg (18) through the connecting part (19)

Methodology Applied
Scientific EffectLeverage: Lever

Implementation Method 3

the pressing part (3) is hinged to the base (4)

Methodology Applied
Scientific EffectHinge rotation: Hinge

Data Source

PatentEP4024620B1Power cable connector, and assembly and usage methods therefor
Publication Date: 2025.02.19 CHENGDU RELIANCE ELECTRIC
  • EP4024620B1 patent drawingFigure 1~2
  • EP4024620B1 patent drawingFigure 3
  • EP4024620B1 patent drawingFigure 4

AI summary

The present invention discloses a power cable connector, including a base part for mounting a power cable and a pressing part for pressing the power cable. The base part includes a base and a conductive sheet. At least one mounting position is arranged on the base. The conductive sheet is mounted in the mounting position. The pressing part is equipped in each mounting position. The pressing part is located above the conductive sheet. The pressing part is hinged to the base. After the power cable is placed on the conductive sheet, the power cable is tightly pressed on the conductive sheet by the pressing part. After tightly pressing the power cable, the pressing part is fastened to the base to fix the power cable. In addition, the present invention also discloses a method for assembling a power cable connector and a method for using a power cable connector. The present invention is of a simple structure, and is easy to use, and can realize quick connection of a power cable, and also allows for quick disassembly of the connector.