Pad-Mounted Transformer EV Charging With Integrated Power Switching
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Solution Overview
Problem
Conventional electric car charging infrastructures require large spaces, hindering their widespread adoption due to space constraints and environmental concerns related to fossil fuel exhaustion.
Innovation Solution
An electric car charging apparatus utilizing a pad-mounted transformer with a first port for supplying power to electric cars, a second port for receiving power from the transformer, and a breaking unit to manage power flow, along with a meter for measuring and a processor for controlling operations based on abnormality information and charging parameters, enabling efficient and stable charging without extensive space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional electric car charging infrastructures are deployed, then charging function is provided, but large space requirements hinder widespread adoption
Solution Approach 1:
The charging apparatus is integrated with the pad-mounted transformer by combining multiple functional components (breaking unit, meter, processor, controller, communicator) into a single unified system mounted on the transformer housing, eliminating the need for separate charging station structures and reducing overall space requirements
Solution Approach 2:
The pad-mounted transformer serves dual purposes: traditional power transformation functions and electric car charging functions. The breaking unit, meter, processor, and controller enable the transformer to provide both power distribution and dedicated EV charging capabilities, allowing one structure to fulfill multiple roles
2Ease of operation
If breaking unit switches between connection and disconnection, then power flow control is achieved, but system complexity increases
Solution Approach 1:
The controller automatically manages the breaking unit's switching operations based on input from the meter and processor, which monitor power flow conditions. The system self-regulates power distribution without requiring manual intervention, simplifying operation while managing complexity through automated control logic
3Reliability
If meter and processor monitor power parameters, then abnormality detection is improved, but device complexity increases
Solution Approach 1:
The meter continuously measures power parameters (current, voltage, power) and feeds this information to the processor, which compares readings against normal operating ranges. When abnormalities are detected, the processor signals the controller to activate the breaking unit, creating a closed-loop feedback system that improves reliability through continuous monitoring while managing complexity through automated response protocols
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
This solution allows for the deployment of electric car charging infrastructure with reduced space needs, enhanced durability against external impacts, and stable power supply, facilitating the spread of eco-friendly transportation systems by integrating with existing power distribution lines.
Implementation Method 1
a pad-mounted transformer used for an electric car charging apparatus
Data Source
AI summary
An electric car charging apparatus using a pad-mounted transformer according to one embodiment of the present invention may include a first port configured to supply power to an electric car, a second port electrically connected to the first port and configured to receive power from a pad-mounted transformer, and a breaking unit configured to switch between connection and disconnection of the first port and the second port.