Elevator Car Operating Panel Push-Fit Wiring for Fast Replacement
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Solution Overview
Problem
Existing elevator car operating panels require complex and time-consuming manual wiring for maintenance and updates, making them difficult to install and replace, which can be costly and inconvenient.
Innovation Solution
The elevator car assembly features a releasable electrical connection system between the operating panel and the elevator cab walls, using connector portions that form a push-fit connection, allowing for easy installation, removal, and replacement without the need for extensive tooling or wiring, and includes a mechanical coupling for secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual wiring is used between the COP and junction box, then electrical connection is established, but maintenance procedures become complex and time-consuming
Solution Approach 1:
The electrical connection system is segmented into modular components: a connector assembly with multiple electrical contacts, a junction box with corresponding connectors, and pre-assembled wire harnesses. This segmentation allows individual components to be easily replaced without affecting the entire wiring system, transforming complex manual wiring into simple connector plugging/unplugging operations.
Solution Approach 2:
A connector assembly serves as an intermediary component between the junction box and the COP. This intermediary contains multiple electrical contacts and provides a standardized interface that simplifies connections. The connector acts as a mediator that converts complex multi-wire connections into simple plug-and-play interfaces, enabling easy maintenance while maintaining reliable electrical connections.
2Reliability
If manual wiring is used for the COP, then electrical components are connected, but updates become difficult and time-consuming
Solution Approach 1:
The wiring system is divided into separable modules with standardized connectors. The COP can be updated by simply disconnecting the existing connector and attaching a new one, eliminating the need to rewire the entire system. This modular approach reduces update time from hours of manual wiring to minutes of connector replacement.
Solution Approach 2:
Connector assemblies and wire harnesses are pre-assembled and pre-tested during manufacturing before installation. This preliminary preparation ensures that when updates are needed, pre-fabricated connector assemblies can be quickly installed without requiring on-site wiring work, significantly reducing update time and eliminating the need for specialized wiring skills.
3Reliability
If manual wiring is used between COP and junction box, then electrical connection is established, but installation becomes complex
Solution Approach 1:
The installation system is segmented into pre-assembled units: a junction box with integrated connectors, pre-wired wire harnesses, and modular COP assemblies. This segmentation transforms complex installation procedures into simple mechanical assembly operations where components are connected through standardized interfaces rather than requiring manual wiring during installation.
Solution Approach 2:
All electrical connections are pre-established during manufacturing through pre-assembled connector assemblies and wire harnesses. This preliminary action means that during installation, workers only need to perform simple mechanical mounting and connector attachment operations, eliminating the need for complex wiring tasks during the installation phase.
4Adaptability or versatility
If complete replacement of elevator car enclosure is required for COP updates, then functional updates are achieved, but costs increase
Solution Approach 1:
The COP system is segmented into independent, replaceable modules with standardized mechanical and electrical interfaces. This segmentation enables functional updates by replacing only the COP assembly itself rather than the entire elevator car enclosure. The standardized connectors ensure that the new COP module integrates seamlessly with the existing installation, achieving functional updates at a fraction of the cost of complete enclosure replacement.
Data Source
AI summary
An elevator car assembly (100). The elevator car assembly (100) includes: an elevator car operating panel (106) including a user interface (124) on a front surface (108) and a first connector portion (112) on a rear surface (110); and an elevator cab (102) including a plurality of elevator cab walls (104) including at least one elevator cab wall (104) for mounting the elevator car operating panel (106) thereon, the at least one elevator cab wall (104) including a second connector portion (114). The first connector portion (112) is configured to form a releasable electrical connection with the second connector portion (114).