Relay Switching Electrical Cords for PDU Power Control
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Solution Overview
Problem
Current power distribution units (PDUs) face high costs and inefficiencies due to the integration of switching relays, which require replacement and reconfiguration when they fail, and occupy valuable space, making it difficult to manage power distribution effectively in settings like server racks.
Innovation Solution
Incorporating a switching relay into the electrical cord itself, allowing for remote control of power transmission through unique identifiers and communication modules, either wired or wireless, to control power distribution directly from the cord, reducing the need for additional communication cables and simplifying relay replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If switching relays are integrated into the PDU, then power distribution control is achieved, but cost increases and maintenance complexity increases when relays fail
Solution Approach 1:
The patent divides the PDU system into modular units where each outlet can be independently controlled by a switching relay. This segmentation allows individual relays to be replaced without affecting the entire PDU system, reducing maintenance complexity and cost.
Solution Approach 2:
The switching relay functionality is extracted from the PDU housing and integrated into the electrical cord itself. This extraction allows the relay to be replaced by simply replacing the cord, eliminating the need for complex reconfiguration of the PDU unit.
2Extent of automation
If switching relays are integrated into the PDU, then power control capability is provided, but valuable space is occupied
Solution Approach 1:
The switching relay is extracted from the PDU and relocated to the electrical cord. This removes the space-consuming relay component from the PDU housing while maintaining the power control capability, allowing the PDU to occupy less valuable space in server racks.
Solution Approach 2:
The relay control functionality is shifted from the horizontal plane (within the PDU housing) to the vertical dimension (along the electrical cord). This spatial relocation frees up space within the PDU while preserving the control function.
3Extent of automation
If switching relays are integrated into the PDU, then individual outlet control is achieved, but maintenance cost increases
Solution Approach 1:
By extracting the switching relay from the PDU and integrating it into the electrical cord, the patent enables simple cord replacement instead of expensive PDU disassembly and reconfiguration. This dramatically reduces maintenance cost while preserving individual outlet control capability.
Solution Approach 2:
The electrical cord with integrated relay is designed as a replaceable, lower-cost component compared to the PDU. When the relay fails, the entire cord assembly can be replaced as a single unit, reducing maintenance cost and complexity.
Data Source
AI summary
Power distribution units, power distribution systems, and related methods for controlling relay switches of electrical cords are disclosed herein. According to an aspect, a PDU includes multiple electrical plug receptacles for operatively connecting to one or more electrical cords for providing power to the electrical cord(s) to transmit power to connected electronic devices. The electrical cord(s) each include a switching relay configured to control transmission of power via the respective electrical cord. The switching relay is configured to receive a control signal for controlling the transmission of power. The PDU includes a connector to a power source configured to supply power to the electrical plug receptacles. Further, the PDU includes a communications module configured to individually route control signals to the switching relays for individually controlling transmission of power via the respective electrical cord(s).