Vehicle Charging Port Mounting Structure for NVH and Dry-Wet Separation

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Solution Overview

Problem

Existing vehicle charging port components face design challenges such as deformation, water leakage, noise generation, limited arrangement space, and difficulty in meeting the requirements of different vehicle models and user convenience due to inadequate mounting structures.

Innovation Solution

A vehicle charging port mounting assembly that includes a body side outer panel, a charging port component, a mounting bracket, an accommodation support member, and a rear wheel cover outer panel reinforcing plate, which enhances local strength and stiffness, facilitates dry-wet separation, and optimizes the layout to improve durability, maintenance efficiency, and user convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the design strength and design stiffness of the mounting bracket are increased to prevent deformation and damage, then the reliability is improved, but the local stress concentration increases causing the wheel cover outer panel to deform

Engineering Contradiction:
Improvemounting bracket durabilityVSAvoidwheel cover outer panel deformation
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The patent applies local quality by adding a reinforcing plate specifically at the mounting bracket location on the wheel cover outer panel. This localized reinforcement increases strength and stiffness exactly where needed (at the mounting bracket) without requiring the entire wheel cover outer panel to be thicker or stronger, thus avoiding global deformation while preventing local stress concentration.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent segments the reinforcement function by separating the mounting bracket from the wheel cover outer panel structure. The reinforcing plate acts as an independent component that interfaces between the mounting bracket and the wheel cover outer panel, allowing the mounting bracket to have high strength without directly transferring all stresses to the wheel cover outer panel.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the charging port component is arranged in the limited dry-wet separation region at the rear of the vehicle, then the adaptability is improved, but the arrangement space is constrained

Engineering Contradiction:
Improvemounting position flexibilityVSAvoidarrangement space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent utilizes the depth dimension (z-direction) by positioning the charging port component in the recessed area formed by the wheel cover outer panel and body side outer panel. This allows the charging port to be arranged in the limited dry-wet separation region without protruding outward, effectively using the third dimension to accommodate the component within the constrained lateral space.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent nests the charging port component within the structural recess formed by the interaction between the wheel cover outer panel and body side outer panel. The charging port mounting bracket is integrated into this nested space, allowing multiple components (wheel cover, body panel, mounting bracket, charging port) to occupy the same projected area without interfering with each other.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If the mounting bracket is designed with high local strength to prevent deformation during repeated plugging and unplugging, then the reliability is improved, but the force transferring path arrangement on the wheel cover outer panel becomes difficult

Engineering Contradiction:
Improvemounting bracket durabilityVSAvoidforce transferring path arrangement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the force transfer function from the wheel cover outer panel by introducing a reinforcing plate as a dedicated component. The reinforcing plate specifically handles the force transfer from the mounting bracket to the wheel cover outer panel, allowing the wheel cover outer panel to maintain its primary structural function without complex force path arrangements.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The reinforcing plate acts as an intermediary component between the mounting bracket and the wheel cover outer panel. It mediates the force transfer, absorbing and distributing the stresses generated during repeated plugging and unplugging operations, thereby simplifying the force path design by providing a clear, direct transmission path through the reinforcing plate.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of operation

If the charging socket is designed as a shallow socket to improve user convenience, then the ease of operation is improved, but the mounting structure becomes more difficult to design

Engineering Contradiction:
Improvecharging operation convenienceVSAvoidmounting structure design
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent performs preliminary action by pre-forming a recess in the wheel cover outer panel before mounting the charging port component. This pre-prepared recess provides the necessary space for a shallow charging socket, allowing the socket to be shallow (improving user access) while the recess structure handles the mounting complexity, separating the socket design from the mounting structure design.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4067140B1Vehicle charging port mounting assembly and vehicle
Publication Date: 2025.10.22 NIO TECH ANHUI CO LTD
  • EP4067140B1 patent drawingFigure 1
  • EP4067140B1 patent drawingFigure 2
  • EP4067140B1 patent drawingFigure 3

AI summary

The invention relates to the technical field of vehicle charging, and particularly provides a vehicle charging port mounting assembly and a vehicle. The invention aims to solve the problem that existing charging port components have a poor design of mounting structure and thus cannot well meet the usage requirements. To this end, the vehicle charging port mounting assembly of the invention comprises a body side outer panel, a charging port component, a charging port mounting component, a rear wheel cover outer panel and a rear wheel cover outer panel reinforcing plate, wherein the charging port mounting component comprises a mounting bracket and an accommodation support member which is provided with an accommodation chamber, the mounting bracket being disposed in the accommodation chamber and fixedly connected to the accommodation support member, and the accommodation support member being disposed between the body side outer panel and the rear wheel cover outer panel. The charging port component is fixed by both the mounting bracket and the accommodation support member, thereby effectively improving the durability and NVH features of this region. The design requirement of dry-wet separation can also be effectively achieved by means of the accommodation support member, and the local strength of this region can be increased by means of the rear wheel cover outer panel reinforcing plate, thereby effectively meeting multiple requirements.