Battery Box Middle Channel Beam for Protected Harness Routing

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Solution Overview

Problem

In electric vehicles, the battery is often mounted at the bottom with exposed harnesses that are vulnerable to damage, compromising safety.

Innovation Solution

A box body design with a main body and middle channel beam that accommodates the battery cell, featuring a wiring channel for harnesses and a sealing member for protection, allowing for flexible and safer harness arrangement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the battery is mounted at the bottom with exposed harnesses, then the assembly is simple, but the harnesses are vulnerable to damage compromising safety

Engineering Contradiction:
ImprovesafetyVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A middle channel beam is introduced as an intermediary structure between the battery and the external environment. This beam contains wiring channels that serve as protected pathways for the harnesses, shielding them from external damage while maintaining the bottom-mounted battery configuration.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The protection system is segmented into distinct functional components: the middle channel beam structure, the wiring channels within it, and the sealing members. This segmentation allows each component to be optimized independently for its specific function while contributing to overall safety.

Inventive Principle:
Principle #1Segmentation

2Productivity

If the top of the box body is constructed as a chassis, then assembly efficiency is high, but the harness arrangement becomes more complex

Engineering Contradiction:
Improveassembly efficiencyVSAvoidharness arrangement complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The middle channel beam serves multiple functions simultaneously: it provides structural support as part of the chassis assembly, contains the wiring channels for harness protection, and offers mounting positions for sealing members. This multi-functionality reduces the need for separate dedicated components.

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

Solution Approach 2:

The structural support function and the harness protection function are merged into a single middle channel beam structure. By combining these functions, the design achieves both high assembly efficiency and safe harness arrangement without requiring separate structural elements.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the middle channel beam is used for wiring channel, then the harness arrangement is more flexible and safer, but the weight increases

Engineering Contradiction:
Improveharness protectionVSAvoidbox body weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The wiring channels are designed as integrated cavities within the middle channel beam structure rather than as separate bulky protective enclosures. This approach provides effective harness protection while minimizing additional weight through efficient use of the beam's internal volume.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentUS20240429544A1Box body, battery, and electric device
Publication Date: 2024.12.26 CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
  • US20240429544A1 patent drawing
  • US20240429544A1 patent drawing
  • US20240429544A1 patent drawing

AI summary

The present disclosure relates to a box body (10), a battery (100), and an electric device. The box body (10) includes a main body (11) and a middle channel beam (16). The main body (11) has an accommodation chamber(s). The middle channel beam (16) extends in a first direction and disposed at the top of the main body (11), and is equidistant from outer edges of two sides of the top of the main body (11) in a second direction intersecting the first direction. The middle channel beam (16) has a wiring channel (16a) configured to allow for passing of a harness.