Memory-Enabled PDU Power Cord for Automatic Input Reconfiguration
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Solution Overview
Problem
Conventional power distribution units (PDUs) require rewiring and hipot testing for power cord changes, necessitating multiple inventory and shipping configurations based on power type and location, which is inefficient and costly.
Innovation Solution
A detachable power cord with a memory-enabled connector that stores information about its power configuration, allowing a controller within the PDU to reconfigure the unit based on the attached power cord, enabling easy switching between different power inputs without disassembly or rewiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional PDU uses a permanently wired power cord, then the PDU structure is simple and reliable, but changing the power cord requires disassembly and rewiring by an electrician
Solution Approach 1:
The power cord is segmented from the PDU body, allowing it to be detached and replaced without disassembling the PDU housing or internal wiring. The connector interface separates the power cord into an independent replaceable component while maintaining electrical connection through standardized terminals.
Solution Approach 2:
The power cord transitions from a fixed, permanent connection to a dynamic, replaceable connection. The detachable design allows the power cord to be easily connected and disconnected based on operational needs, transforming the static wiring into a flexible, adaptable configuration.
2Adaptability or versatility
If a PDU is supplied with different power cords for different locations and power requirements, then the PDU can be used globally, but suppliers and customers must maintain multiple inventories
Solution Approach 1:
A single PDU unit is designed to work with multiple power cord types through a universal connector interface. The PDU can accept different power cords with various configurations (voltage, phase, connector type) without requiring different PDU models, making one unit serve multiple functions and locations.
Solution Approach 2:
The power cord parameters (voltage rating, current rating, connector type, wire gauge) are changed by replacing the power cord itself rather than changing the PDU. This allows the same PDU to operate with different electrical parameters by simply swapping the power cord to match the local power supply requirements.
3Adaptability or versatility
If a power cord is permanently wired into the PDU, then the electrical connection is reliable and safe, but the PDU cannot be reconfigured without professional intervention
Solution Approach 1:
The connector interface is pre-designed and pre-assembled during manufacturing with proper electrical contacts and mechanical coupling features. This preliminary preparation allows end-users to easily configure and replace power cords without requiring professional intervention, while maintaining safe and reliable electrical connections.
4Extent of automation
If the PDU uses a detachable power cord without memory storage, then the design is simpler, but the PDU cannot automatically configure itself based on the attached power cord
Solution Approach 1:
A memory device serves as an intermediary between the power cord and the PDU controller. The memory stores identification information about the power cord's electrical characteristics, allowing the controller to automatically read and configure the PDU settings without manual intervention. This intermediary enables automatic configuration while keeping the overall system design manageable.
Data Source
AI summary
A power distribution unit (PDU), including: a housing; one or more outlets; a power input connector; a controller; multiple power input conductors coupled to the power input connector; a pair of conductors coupled to and extending between the power input connector and the controller; and a detachable power cord, including: a power cord connector mateable with the power input connector; multiple power cord conductors coupled to the power cord connector and in electrical communication with corresponding power input conductors; and a memory coupled to the power cord connector and in electrical communication with the pair of conductors, wherein the memory includes information pertaining to the power cord.