Charge-and-discharge connector with emergency power bypass
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Solution Overview
Problem
Current charge-and-discharge management systems for electric vehicles face challenges in efficiently transferring power between vehicles and external equipment, leading to increased complexity and cost, and fail to supply power during emergencies without relying on the charge-and-discharge management system.
Innovation Solution
A charge-and-discharge connector with an operating part that can switch between states, allowing electric power transfer between a vehicle's power supply and an external charge-and-discharge control device without relying on a control signal, enabling both normal charge and emergency power supply operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate electric supply mechanism is established for supplying power from vehicles to external equipment, then the vehicle can supply power externally, but the vehicle size and manufacturing cost increase due to system complexity
Solution Approach 1:
The charge-and-discharge connector is designed to perform multiple functions: it serves as both a charge connector for receiving power from external power supplies and a discharge connector for supplying power to external equipment. The single connector includes switching elements that can redirect the power flow direction, eliminating the need for separate connectors and reducing system complexity while maintaining both charge and discharge capabilities
Solution Approach 2:
The patent combines the charge connector and discharge connector into a single integrated charge-and-discharge connector. By merging these two functions into one physical connector with internal switching mechanisms, the system reduces the number of components, simplifies the overall structure, and lowers manufacturing costs while preserving the ability to both receive and supply power
2Reliability
If control signals are required for all power transfer operations, then power transfer is controlled, but the system cannot operate during emergencies when the charge-and-discharge management system fails
Solution Approach 1:
The control system is segmented into two independent pathways: a controlled mode that requires charge-and-discharge control signals for normal operations, and an uncontrolled mode that can operate without these signals for emergency situations. The switching element can redirect power flow based on the presence or absence of control signals, ensuring that emergency power supply is not blocked by system failures
Solution Approach 2:
The connector incorporates dynamic switching capability that can adapt its operation mode based on system conditions. When control signals are present, the system operates in controlled mode; when control signals are absent (emergency), the system automatically transitions to uncontrolled mode, allowing power transfer to continue without interruption despite management system failures
3Adaptability or versatility
If multiple connectors are used for charge and discharge operations, then charge and discharge can be performed independently, but the connector structure and system complexity increase
Solution Approach 1:
The charge-and-discharge connector is designed as a universal connector that can handle both charge and discharge operations through internal switching mechanisms. The same physical connector can redirect power flow in different directions based on operational requirements, eliminating the need for separate charge and discharge connectors while maintaining full functionality
Solution Approach 2:
The patent merges the previously separate charge connector and discharge connector into a single integrated unit. This unified connector structure reduces the total number of connectors needed, simplifies the connection interface, and lowers system complexity while preserving the ability to independently perform both charge and discharge operations through internal power flow control
Data Source
AI summary
The present invention has an objective to provide a charge-and-discharge connector which makes it possible to transfer of electric power mutually between vehicles and the vehicles exterior under control by a charge-and-discharge management system at normal times, and makes it possible to supply electric power from vehicles to the vehicles exterior without depending on the charge-and-discharge management system in an emergency. It is possible to make vehicles perform an electric supply operation without using a charge-and-discharge control signal in an emergency by preparing an operating part in a charge-and-discharge connector for delivering and receiving electric power between vehicles and the charge-and-discharge control device outside the vehicles and operating the operating part to make the vehicles detect that an electric supply operation is possible without using the charge-and-discharge control signal used for controlling charge and discharge at normal times.