In-Vehicle Battery Charger With Tiltable Mounting Surface

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Solution Overview

Problem

Existing in-vehicle battery charging systems are not suitable for in-vehicle use, as they require the object to be charged to be vertically placed, which is difficult in a moving vehicle, and previous solutions either require specific device registration or are inconvenient for different devices.

Innovation Solution

An in-vehicle battery charging system with a battery charger integrated into the vehicle's instrumental panel, featuring a tiltable mounting surface and a vertically adjustable holding unit to accommodate various devices, allowing for proper alignment of energy transmitting and receiving units for efficient charging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the object to be charged is vertically placed to narrow the battery charging distance for quick charge, then charging speed is improved, but it becomes difficult to charge the object in a moving vehicle

Engineering Contradiction:
Improvecharging speedVSAvoidease of placement
Core Design Contradiction:
SpeedVSEase of operation

Solution Approach 1:

The mounting surface is designed to be tiltable, allowing it to change orientation from vertical to inclined positions. This dynamic adjustment enables the system to adapt between quick charge mode (vertical placement for narrow charging distance) and in-vehicle use mode (inclined placement for stability during vehicle movement), resolving the contradiction between charging speed and ease of operation.

Inventive Principle:
Principle #15Dynamics

2Measurement precision

If a graphic representation is changed to match each specific electric device for efficient alignment, then positioning accuracy is improved, but it leads to inconvenience when devices are changed or replaced

Engineering Contradiction:
Improvepositioning accuracyVSAvoiddevice compatibility
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The graphic representation is designed as a universal template that can accommodate multiple types of electric devices. Instead of creating device-specific graphics, the same graphic representation serves as a general guide for aligning the secondary coil with the primary coil, enabling the system to work with various devices without requiring graphic changes, thus resolving the contradiction between positioning accuracy and device compatibility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If the battery charger is designed with a tilted surface and support portion for stable placement, then stability is improved, but it cannot be used for in-vehicle applications where vertical placement is needed

Engineering Contradiction:
Improveplacement stabilityVSAvoidapplication versatility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The mounting surface is designed to be tiltable, allowing it to change orientation from vertical to inclined positions. This dynamic adjustment enables the system to adapt between quick charge mode (vertical placement for narrow charging distance) and in-vehicle use mode (inclined placement for stability during vehicle movement), resolving the contradiction between charging speed and ease of operation.

Inventive Principle:
Principle #15Dynamics

4Productivity

If the holding unit adjusts the position of the energy receiving unit to optimize charging, then charging efficiency is improved, but the device complexity increases

Engineering Contradiction:
Improvecharging efficiencyVSAvoidstructure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The holding unit is designed to automatically adjust the position of the object to be charged or the energy receiving unit based on the inclined orientation of the mounting surface. This self-adjusting mechanism utilizes the gravitational force and the inclined plane geometry to achieve optimal alignment between coils without requiring complex active control systems, sensors, or motors, thus resolving the contradiction between charging efficiency and device complexity.

Inventive Principle:
Principle #25Self-service

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

Enables efficient and adaptable charging of different devices within a vehicle by maintaining a proper charge condition and allowing easy device placement and removal, while preventing device instability during vehicle movement.

Implementation Method 1

a battery charger with a built-in primary coil; and an object to be charged including a secondary coil and a rechargeable battery, in which the battery charger and the object to be charged are allowed to come close to each other to charge the rechargeable battery through an electromagnetic inductive action between both the coils

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS9248791B2In-vehicle battery charging system
Publication Date: 2016.02.02 HONDA ACCESS CORP
  • US9248791B2 patent drawing
  • US9248791B2 patent drawing
  • US9248791B2 patent drawing

AI summary

An in-vehicle battery charging system adaptable to a wide variety of objects to be charged. A charging system 1 includes a battery charger 3 with a built-in primary coil 2 used to charge an object 7 with a secondary coil 5 and a rechargeable battery 6. By allowing the battery charger 3 and the object 7 to come close to each other, the rechargeable battery 6 is charged through an electromagnetic inductive action between the coils. The battery charger 3, provided in a vehicle instrumental panel 4, includes a slider assembly 23 for adjusting a position of the secondary coil 5 of the object 7 with respect to the primary coil 2 of the battery charger 3. This slider assembly 23 enables a positional relationship between the coils to be properly adjusted, enabling a proper charge condition to be maintained for a variety of objects to be charged.