Battery Mounting Structure with Interference Inhibiting Portion

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Solution Overview

Problem

Existing battery mounting structures face interference issues with rods during frontal collisions due to inertia, which can damage the battery, and often require complex arrangements to prevent such interference.

Innovation Solution

A battery mounting structure featuring a battery bracket fixed to the vehicle body with a rod connected to the bracket, including an interference inhibiting portion, such as ribs or a contact piece, that allows the battery to contact and absorb impact energy without restricting the battery's arrangement, thereby preventing interference with the rod.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a rod is used to fix the battery to the battery bracket, then the battery is securely retained, but the battery may interfere with the rod during frontal collisions due to inertia

Engineering Contradiction:

Improvebattery retentionVSAvoidinterference damage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

An interference inhibiting portion is introduced as an intermediary element between the battery and the rod. This portion prevents direct contact and interference between the battery and rod during frontal collisions, while still allowing the rod to securely retain the battery under normal conditions. The intermediary structure resolves the contradiction by providing both secure retention and collision protection.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If space is ensured for the front rod to rotate, then interference is prevented, but the battery arrangement is restricted and requires complex spatial requirements

Engineering Contradiction:

Improveinterference preventionVSAvoidspatial arrangement

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The interference prevention function is segmented from the rod itself and transferred to a separate interference inhibiting portion. This segmentation allows the rod to maintain its simple retention function while the dedicated inhibiting portion handles collision protection, eliminating the need for complex rotational space requirements around the rod.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of allowing the rod to move or rotate to prevent interference, the invention inverts the approach by providing a fixed structure (interference inhibiting portion) that prevents the battery from contacting the rod. This inversion eliminates the need for complex spatial arrangements while achieving the same protective effect.

Inventive Principle:

Principle #13The other way round (Inversion)

3Object-affected harmful factors

If the rod is moved to inhibit interference, then battery protection is achieved, but the battery arrangement is restricted and assembly becomes more complex

Engineering Contradiction:

Improvebattery protectionVSAvoidassembly simplicity

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The interference inhibiting portion is merged with the battery bracket structure, forming an integrated component. This merging eliminates the need for separate movable mechanisms and simplifies assembly, as the protective function is built into the stationary bracket structure rather than requiring additional moving parts or complex assembly steps.

Inventive Principle:

Principle #5Merging (Combining)

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

The structure effectively inhibits interference between the battery and the rod during frontal collisions, absorbs impact energy through deformation, and allows for a simpler design without the need for complex rod movement or separate components, enhancing assemblability and impact resistance.

Implementation Method 1

absorbs impact energy through deformation

Methodology Applied

Scientific EffectDeformation: Deformation

Implementation Method 2

when forward inertia force toward a front of the vehicle acts on the battery

Methodology Applied

Scientific EffectInertia: Inertia

Data Source

PatentEP2759004B1Battery mounting structure

Publication Date: 2017.01.04 TOYOTA JIDOSHA KK

AI summary

A battery mounting structure includes a battery bracket that is fixed to a body of a vehicle, and on which a battery is mounted; a rod that is connected to the battery bracket in a state in which a gap is provided between a front wall of the battery and the battery bracket, and that fixes the battery to the battery bracket; and an interference inhibiting portion that is provided between the rod and the front wall of the battery, and that inhibits interference between the battery and the rod by the front wall of the battery contacting the interference inhibiting portion when forward inertia force toward a front of the vehicle acts on the battery.