Heavy Vehicle Battery Pack Cover for Vertical Stacking Access

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Solution Overview

Problem

Existing battery packs in vehicles, particularly heavy vehicles like trucks, face issues of space constraints due to their positioning under the chassis, leading to reduced space for other components and increased manufacturing costs due to varying battery dimensions across countries.

Innovation Solution

A modular battery pack design with a base and cover that allows vertical stacking of batteries, featuring a releasable connection and locking mechanism for easy access and secure fixation, enabling versatile and compact storage of batteries of varying dimensions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If battery packs are positioned underneath the vehicle chassis, then batteries are protected from the external environment, but space for other components (reservoirs) is reduced

Engineering Contradiction:
Improveprotection of batteriesVSAvoidspace for reservoirs
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent transitions from horizontal placement of batteries to vertical stacking arrangement. By utilizing the vertical dimension beneath the chassis, the design accommodates multiple battery units stacked one above another, thereby maximizing space utilization while maintaining protection and avoiding conflict with horizontally positioned reservoirs.

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

Solution Approach 2:

The battery pack design implements a nested structure where multiple battery units are stacked vertically within a common protective housing. Each battery is contained within the same structural envelope, allowing compact arrangement that protects all batteries while minimizing the overall footprint under the chassis.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Area of stationary object

If a very compact battery pack is provided for housing electrical batteries one above the other, then space utilization is improved, but adaptability to different battery dimensions is reduced

Engineering Contradiction:
Improvespace utilizationVSAvoidsuitability for different battery dimensions
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The battery pack structure is divided into modular components including individual battery housings, a common protective structure, and adjustable mounting elements. This segmentation allows the same basic design to accommodate different battery sizes by reconfiguring or replacing individual modules without redesigning the entire pack.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The common protective housing and mounting structure are designed with universal features that can accommodate multiple battery types and dimensions. Adjustable brackets, flexible positioning mechanisms, and standardized connection points enable the same battery pack design to suit batteries from different manufacturers and countries.

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

3Ease of manufacture

If batteries are housed one above the other in a compact arrangement, then manufacturing costs are reduced, but ease of access for maintenance is worsened

Engineering Contradiction:
Improvemanufacturing costVSAvoidaccess for maintenance
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The battery pack incorporates movable or adjustable components such as removable panels, adjustable brackets, and flexible mounting mechanisms. These dynamic features allow easy access to individual batteries for maintenance while maintaining the compact vertical stacking arrangement during normal operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The design allows individual batteries or battery modules to be extracted from the stack for maintenance or replacement. Removable sections of the protective housing and detachable mounting mechanisms enable technicians to access specific batteries without disassembling the entire pack structure.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP4632909A1Improved battery pack arrangement for a vehicle
Publication Date: 2025.10.15 ON-HIGHWAY BRASIL LTDA
  • EP4632909A1 patent drawingFigure 1
  • EP4632909A1 patent drawingFigure 2
  • EP4632909A1 patent drawingFigure 3

AI summary

Battery pack (5) for a heavy vehicle (1), the battery pack (5) extending along a longitudinal axis (A'), a transversal axis (B') and a vertical axis (C' ) and comprising a base (6) configured to be fixed to a portion (2) of the vehicle (1) and a cover (7) selectively carried by said base (6), the cover (7) being connected to one wall of said the (6) via a releasable connection (11) in order to assume an attached configuration wherein said cover (7) is connected to one among said walls (6a, 6b, 6c) of said base (6) or a detached configuration wherein the cover (7) is separated from the base (6).