Battery Unit Internal Plate Merging Brackets

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Solution Overview

Problem

Existing battery pack attachment methods to housings are inefficient due to the need for separate brackets and double-sided tapes, which can lead to misalignment and increased operational complexity.

Innovation Solution

A battery unit design featuring a reinforced internal plate with screws for attaching the battery pack to the housing, eliminating the need for separate brackets and enhancing attachment efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the battery pack is fixed to the bottom wall part of the housing by using a double-sided tape and a bracket, then the battery pack can be attached to the housing, but the attachment operation becomes inefficient and complex due to misalignment issues and the need for multiple components

Engineering Contradiction:
Improveattachment efficiencyVSAvoidattachment structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines the bracket and mounting plate into a single integrated internal plate structure. The internal plate is directly attached to the bottom wall part of the housing and provides both the support function of a bracket and the mounting surface function of a plate, eliminating the need for separate components and reducing alignment issues.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The internal plate serves multiple functions: it acts as a structural support element attached to the housing bottom wall, provides a mounting surface for the battery pack, and includes through holes for fastener attachment. This multi-functional design replaces what would traditionally require multiple separate components.

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

2Reliability

If a bracket is used to hold the battery pack from opposite sides, then the battery pack can be secured to the housing, but the housing dimension constraints make it difficult to dispose the bracket properly

Engineering Contradiction:
Improvebattery pack securingVSAvoidhousing assembly difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The bracket and mounting plate functions are merged into the internal plate, which is custom-formed to fit the housing interior. The internal plate includes integrated through holes positioned to receive fasteners, combining the support and mounting functions into a single component that is easier to manufacture and assemble within housing dimension constraints.

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If the battery pack is positioned shifted from the predetermined position during attachment, then misalignment occurs, but re-attachment is required which reduces operational efficiency

Engineering Contradiction:
Improvebattery pack positioning accuracyVSAvoidattachment operation efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The internal plate is pre-attached to the bottom wall part of the housing with through holes positioned at predetermined locations. This preliminary positioning provides alignment guides for the battery pack, ensuring accurate placement before final fastening and eliminating the need for re-attachment due to misalignment.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4016717A1Battery unit and power storage system including the battery unit
Publication Date: 2022.06.22 FDK CORP
  • EP4016717A1 patent drawingFigure 1
  • EP4016717A1 patent drawingFigure 2
  • EP4016717A1 patent drawingFigure 3

AI summary

Provided is a battery unit 10 including a housing 20, an internal plate 30 attached to an interior of the housing, to separate an interior of the housing into an upper space S1 and a lower space S2, a battery pack 40 attached to a lower surface 31 of the internal plate, and disposed in the lower space, and a fixing unit 60 for fixing the battery pack to the lower surface of the internal plate.