Clean Room Floor Base Sheet Design to Prevent Insect Entry

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing clean room facilities that use underfloor blowers to prevent insect invasion are costly and difficult to install, and there is a need for a more cost-effective solution.

Innovation Solution

A clean room facility design that includes a base sheet placed between the floor base and a side wall, extending to the exterior wall, bonded to the floor base and wall, to prevent insect entry without the need for underfloor blowers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If traditional HVAC systems are used for environmental control, then temperature and humidity can be maintained, but the systems occupy valuable floor space and increase construction costs

Engineering Contradiction:

Improvetemperature controlVSAvoidfloor space occupation

Core Design Contradiction:

TemperatureVSArea of stationary object

Solution Approach 1:

The HVAC functionality is merged with the ceiling structure itself. The ceiling panels incorporate heating and cooling channels directly into their construction, allowing the ceiling to serve both as a structural element and as the environmental control system, eliminating the need for separate HVAC equipment and ductwork.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The ceiling structure is designed to perform multiple functions simultaneously: it provides structural support, defines the room boundary, and serves as the HVAC distribution system. This multi-functionality reduces the overall space requirement and eliminates redundant infrastructure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Temperature

If traditional HVAC systems are installed, then environmental control is achieved, but construction costs and maintenance requirements increase

Engineering Contradiction:

Improvetemperature controlVSAvoidconstruction cost

Core Design Contradiction:

TemperatureVSEase of manufacture

Solution Approach 1:

By combining the HVAC system with the ceiling structure, the patent eliminates the need for separate HVAC equipment, ductwork, and installation infrastructure. This integration reduces material costs, installation labor, and ongoing maintenance requirements while achieving the same environmental control functionality.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of repair

If access to mechanical equipment is provided for maintenance, then maintenance can be performed, but the aesthetic appearance of the ceiling is compromised

Engineering Contradiction:

Improvemaintenance accessVSAvoidceiling aesthetic

Core Design Contradiction:

Ease of repairVSShape

Solution Approach 1:

The ceiling is divided into modular panels that can be independently accessed or removed. This segmentation allows maintenance personnel to access the HVAC channels through specific panels without exposing the entire ceiling structure, preserving the aesthetic appearance while enabling necessary maintenance activities.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP4174256B1Clean room facility

Publication Date: 2026.02.25 HITACHI GLOBAL LIFE SOLUTIONS INC

Figure 1
Figure 2
Figure 3

AI summary

A clean room facility (100) which prevents an insect from entering a clean room (R) at a low cost is provided. The clean room facility (100) includes: a finish sheet (6) that is provided on an upper side of a floor base (2) of the clean room (R) and forms a floor surface of the clean room (R); and a base sheet (5) that is provided between the floor base (2) and the finish sheet (6). The base sheet (5): is provided also under a panel member (1) which serves as a side wall of the clean room (R); and is extended to a vicinity of an exterior wall (20) of a building including the clean room (R).