Battery Pack Storage Case With Offset Frame for Flying Object Impact

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Solution Overview

Problem

Existing battery pack structures are ineffective in protecting against impact loads applied to the upper part of the battery case, particularly when exposed to outdoor environments where flying objects can cause damage.

Innovation Solution

A battery pack storage case design featuring an outer cover, flange, and flying object protection frames positioned outside the flange at different heights, along with a reinforcement structure to support battery modules, enhances protection against collisions by distributing impact forces and suppressing deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a flying object protection frame is added outside the flange, then protection against flying object collision is improved, but device complexity increases

Engineering Contradiction:
Improveprotection against flying object collisionVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The flying object protection frame serves multiple functions: it acts as a structural support element, a protective barrier against flying objects, and an integral part of the battery pack assembly. This multi-functionality justifies the added structure by providing comprehensive protection while maintaining design efficiency

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

Solution Approach 2:

The flying object protection frame is positioned within the outer cover and integrates with the existing battery pack structure. The frame is nested inside the outer cover space, utilizing the available volume efficiently without requiring external attachments that would significantly increase overall complexity

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS20260018724A1Battery pack storage case
Publication Date: 2026.01.15 TOYOTA JIDOSHA KK
  • US20260018724A1 patent drawing
  • US20260018724A1 patent drawing
  • US20260018724A1 patent drawing

AI summary

A battery pack storage case includes a battery pack in which a battery module is stored inside a battery pack cover, an outer cover storing the battery pack inside the outer cover, a flange provided outside the battery pack cover, and a flying object protection frame provided inside the outer cover. The flying object protection frame is provided outside the flange and at a different height from the flange.