Universal EV Charging Cable with Detachable Power Adapter
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Solution Overview
Problem
Electric propulsion vehicles face challenges in popularization due to the need for multiple charging cables compatible with various power sources and limited storage space, especially when dealing with different voltage standards across regions and countries.
Innovation Solution
An electric propulsion vehicle charging cable with a power plug having three high-voltage electrodes and a ground pin, along with a detachable power adapter that includes electrode receptacles and connection terminals compatible with different power source standards, allowing the cable to adapt to various voltage requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple charging cables corresponding to various power sources are prepared in the electric propulsion vehicle, then compatibility with different power sources is improved, but the device complexity and storage space requirements increase
Solution Approach 1:
The charging cable is designed with a universal power plug that can be used with multiple power sources (residential 100V/200V and industrial 200V three-phase). The cable body and vehicle connector remain the same while only the power plug varies, making the charging cable multi-functional across different power source types.
Solution Approach 2:
The charging cable system is segmented into three independent components: the cable body, the power plug, and the vehicle connector. This segmentation allows the power plug to be easily replaced or adapted for different regions and power sources without changing the entire charging cable, reducing overall system complexity.
2Productivity
If a power plug with large rated values (250V/50A) is used for rapid charging, then charging time is reduced, but compatibility with 100V residential power sources is lost
Solution Approach 1:
The charging system dynamically adapts to different power source capacities. The power plug is designed with rated values (250V/50A) suitable for rapid charging from industrial power sources, while the control unit dynamically adjusts the actual charging current based on the detected power source type and capacity, enabling safe operation from both 100V residential and 200V industrial power sources.
Solution Approach 2:
The charging parameters (voltage and current) are dynamically changed based on the power source being used. The power plug maintains high rated values for rapid charging capability, while the control system modifies operating parameters in real-time to match the actual power source, allowing the same cable to achieve rapid charging from industrial sources and standard charging from residential sources.
3Adaptability or versatility
If charging cables are equipped in advance for various power source situations in different regions or countries, then international compatibility is improved, but the storage space and device complexity increase
Solution Approach 1:
The charging cable incorporates a universal design where the cable body and vehicle connector remain consistent across regions, while the power plug can be adapted for different countries' standards (Japanese 100V/200V, US 115V/230V, European standards). This multi-functionality eliminates the need to carry multiple complete charging cables when traveling internationally.
Solution Approach 2:
By segmenting the charging cable into replaceable components (cable body, power plug, vehicle connector), the system allows users to carry a single cable body and simply swap power plugs when traveling to different countries or regions, dramatically reducing storage space requirements compared to carrying multiple complete charging cables.
Data Source
AI summary
To provide the electric propulsion vehicle charging cable compatible with power sources of different standards, and the power adapter attached to an electric propulsion vehicle charging cable, the power plug of the electric propulsion vehicle charging cable includes has an electrode structure including three high-voltage electrodes and a high-voltage ground pin, the electric propulsion vehicle charging cable used for charging a battery of the electric propulsion vehicle by using two of the three high-voltage electrodes, and the power adapter has electrode receptacles to which the three high-voltage electrodes and the high-voltage ground pin are connected and connection terminals having an electrode structure corresponding to a power source of a different standard from the electrode structure of the power plug.