Elevator Load-Bearing Member With Conductive Adhesive Bonding
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Solution Overview
Problem
Existing elevator load bearing member technologies lack effective solutions for enhancing electrical conductivity and adhesion between wires and jackets, which are crucial for health monitoring systems and maintaining the integrity of the load-bearing member.
Innovation Solution
A load bearing member for elevator systems is developed, featuring a plurality of wires coated with a polymer-based conductive adhesive, which includes intrinsically conductive polymers or a combination of non-conductive polymer adhesives and conductive elements, and a jacket adhered to the wires using this adhesive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive elements are added to the adhesive coating, then electrical conductivity is improved, but adhesion strength may be reduced
Solution Approach 1:
The patent carefully controls the concentration, size, and distribution of conductive particles within the adhesive coating. By optimizing these parameters, the coating maintains adequate adhesion strength while achieving sufficient electrical conductivity. The polymer matrix content is adjusted to ensure binding strength is not compromised by the presence of conductive fillers.
2Reliability
If health monitoring capabilities are enhanced through conductive coatings, then system reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent combines multiple functions into a single adhesive coating layer: adhesion between jacket and wires, electrical conductivity for health monitoring, and potentially corrosion protection. This merging of functions into one integrated component eliminates the need for separate adhesive and conductive layers, thereby reducing manufacturing steps and overall system complexity while maintaining enhanced health monitoring capabilities.
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 achieves enhanced electrical conductivity, improved adhesion between wires and jackets, and maintains the required tensile strength, thereby supporting effective health monitoring and the overall reliability of the elevator system.
Implementation Method 1
a polymer-based conductive adhesive coating on each of the plurality of wires... the polymer-based conductive adhesive facilitates electrical conduction between the wires
Implementation Method 2
The jacket is adhered to the wires by the polymer-based conductive adhesive coating
Data Source
Figure 1~2
AI summary
An elevator load bearing member includes a plurality of load bearing wires, a polymer-based conductive adhesive coating on each of the plurality of the wires, and a jacket surrounding the wires. The jacket is adhered to the wires by the polymer-based conductive adhesive coating. A method of making a load bearing member for an elevator system is also disclosed.