Vehicle Charging Pad Structure for Weight-Bearing Contact Charging
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Solution Overview
Problem
Conventional vehicle contact charging pads lack sufficient structural strength to support the weight of electric vehicles during charging, leading to potential damage and malfunction.
Innovation Solution
A vehicle charging device design featuring a base with an accommodating space, supporting pillars, and conductors with contact and connection portions that distribute the weight of the electric vehicle, preventing conductor damage through a staggered arrangement and electrical connection via flexible cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the vehicle contact charging pad uses a conventional structure without supporting pillars, then the device complexity is low, but the structural strength is insufficient to support the weight of the electric vehicle
Solution Approach 1:
The charging pad structure is segmented into multiple functional components: a base, multiple supporting pillars arranged in an array, and conductors. The supporting pillars are divided into first supporting pillars and second supporting pillars positioned at different locations, creating a modular structure that distributes mechanical loads while maintaining electrical functionality.
Solution Approach 2:
The charging device employs a composite structure combining mechanical support elements (supporting pillars made of structurally robust materials) with electrical conductive elements (conductors). This composite design allows the structure to simultaneously bear the weight of the electric vehicle and transmit electrical energy for charging.
2Reliability
If the conductors bear the full weight of the electric vehicle, then the device structure remains simple, but the conductors may be damaged due to excessive weight
Solution Approach 1:
The weight-bearing function is segmented from the electrical conduction function. Supporting pillars are specifically designated to bear the weight of the electric vehicle, while conductors are dedicated to electrical connection. This functional segmentation prevents conductors from bearing excessive mechanical loads that could cause damage.
Solution Approach 2:
The supporting pillars act as intermediary structural elements between the base and the electric vehicle. These pillars transfer the mechanical weight load to the base, serving as mediators that protect the conductors from direct mechanical stress while allowing electrical current to flow through the conductors to the vehicle.
Data Source
AI summary
A vehicle charging device includes a base, a circuit board, a plurality of supporting pillars and a plurality of conductors. The base has an accommodating space. The circuit board is located in the accommodating space. The plurality of supporting pillars are located in the accommodating space, and are connected to the base. Each of the plurality of conductors includes a contact portion and a connection portion. The plurality of contact portions are disposed on the base. The plurality of contact portions are located outside the accommodating space. The plurality of connection portions are connected to the plurality of contact portions, respectively. The plurality of connection portions penetrate through the base. The plurality of connection portions are partially located in the accommodating space. The plurality of connection portions are electrically connected to the circuit board.