Explosion-Protected Battery Case with Vent Holes

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing battery cases for robots operating in explosive atmospheres lack maintainability while maintaining explosion protection, as they often house driving devices like hydraulic motors without considering battery maintenance.

Innovation Solution

A battery case made of resilient, transparent polycarbonate material with ventholes and breathable filters, allowing for easy battery exchange and gas exhaust, ensuring explosion protection and enhanced maintainability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the battery is housed in an explosion protection case with air tightness, then explosion protection property is improved, but maintainability deteriorates

Engineering Contradiction:

Improveexplosion protection propertyVSAvoidmaintainability

Core Design Contradiction:

ReliabilityVSEase of repair

Solution Approach 1:

The battery case is divided into a case body and a detachable cover portion. The cover can be separated from the case body to provide access to the battery, enabling maintenance and replacement operations without compromising the explosion protection integrity of the main case structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A detachable cover acts as an intermediary element between the explosion protection requirement and the maintenance requirement. The cover provides a temporary opening for battery access while maintaining the overall sealed structure of the case when closed.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the battery case is made sealed for explosion protection, then explosion protection property is improved, but gas exhaust capability deteriorates

Engineering Contradiction:

Improveexplosion protection propertyVSAvoidgas exhaust capability

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The case structure transitions from complete sealing to localized opening through the detachable cover. The sealed case body maintains explosion protection, while the removable cover creates a controlled local opening that enables both battery access and gas exhaust functionality when needed.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The cover transitions between attached and detached states dynamically. When attached, the case remains sealed for explosion protection; when detached, the case allows gas exhaust and battery maintenance. This dynamic state change resolves the contradiction between sealed protection and gas venting.

Inventive Principle:

Principle #15Dynamics

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 solution provides a battery case with high maintainability and explosion protection properties, enabling safe and efficient battery replacement and gas management within the robot, even in explosive environments.

Implementation Method 1

breathable filters, allowing for easy battery exchange and gas exhaust

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Implementation Method 2

resilient, transparent polycarbonate material

Methodology Applied

Scientific EffectMaterial transparency:

Data Source

PatentEP3340335B1Battery case

Publication Date: 2021.11.03 YASKAWA DENKI KK

Figure 1
Figure 2A~2B
Figure 2C~2D

AI summary

A battery case (10) includes a battery (20), a circuit board (30) that includes a circuit to protect the battery (20), a chassis (11, 12, 13) that houses the battery (20) and the circuit board (30), and a venthole disposed at the chassis (11, 12, 13) to cause gas to pass through. The battery case (10) has high maintainability while holding an explosion protection property.