Foldable Thermo Container Structure With Stable Dual-Layer Support

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Solution Overview

Problem

Conventional thermo containers are bulky and inconvenient to store or carry due to their large size, and dual-layer foldable structures lack stability when unfolded, potentially deforming under stress.

Innovation Solution

A dual-layer thermo container structure with perpendicular folding directions for the outer and inner containers, featuring compressible and foldable bodies with integrated thermal insulation, and a sealing mechanism to maintain stability and support.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the thermally insulated material is folded to reduce storage space, then the container becomes compact for storage and transport, but the surface must be formed by several discontinued pieces being sewn together which may sacrifice thermal insulation performance

Engineering Contradiction:

Improvestorage spaceVSAvoidthermal insulation performance

Core Design Contradiction:

Volume of moving objectVSReliability

Solution Approach 1:

The container is divided into an outer container and an inner container that can be independently folded and stored. The thermally insulated material is integrated into both containers, allowing each to be folded separately while maintaining insulation integrity. This segmentation enables compact storage without compromising the continuous thermal insulation surface.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The inner container is placed inside the outer container when not in use, creating a nested structure. Both containers have foldable bodies with integrated thermal insulation, allowing the inner container to be nested within the outer container's folded structure, significantly reducing storage volume while maintaining the integrity of the thermal insulation material in both layers.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Reliability

If a dual-layer foldable structure is used to ensure thermal insulation, then thermal insulation effect is improved, but the container may deform under stress when not entirely filled up due to lack of support between inner and outer layers

Engineering Contradiction:

Improvethermal insulation effectVSAvoidstructural stability

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The inner container is pre-filled with thermally insulated material before being placed inside the outer container. This preliminary filling provides internal support structure that prevents deformation of the outer container when not entirely filled up, while maintaining the dual-layer thermal insulation effect.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The container uses a composite structure with an outer container and an inner container, both made of waterproof material with integrated thermal insulation. The inner container acts as a structural support framework within the outer container, providing stability while the combined dual-layer structure maintains thermal insulation effectiveness.

Inventive Principle:

Principle #40Composite materials

3Stability of the object's composition

If the container is made with a fixed structure to maintain stability, then structural stability is improved, but the container occupies large space and is inconvenient to store or carry during outdoor activities

Engineering Contradiction:

Improvestructural stabilityVSAvoidstorage space

Core Design Contradiction:

Stability of the object's compositionVSVolume of moving object

Solution Approach 1:

The container bodies are designed with foldable structures that can transition between expanded and folded states. The outer container and inner container both have foldable bodies with folding lines, allowing them to be dynamically adjusted from a stable expanded configuration during use to a compact folded configuration for storage and transport.

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 structure provides effective thermal insulation, reduces storage space, and maintains stability when unfolded, enhancing user experience by preventing deformation under stress.

Implementation Method 1

a thermally insulated material is filled in both the first body and the first cover

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS20260021952A1Thermo container structure convenient to be stored background of the invention

Publication Date: 2026.01.22 LIN DEQUAN

AI summary

A thermo container structure convenient to be stored, provides good thermal insulation effect and achieves stable support after being unfolded, including an outer container and an inner container; the outer container has a first body and a first cover; both filled with thermally insulated materials; the inner container has a second body and a second cover; the first body and the second body are both compressible and foldable structures, and the first body and the second body are foldable towards two different folding directions perpendicular to each other; in an unfolded state of the thermo container structure, the first cover can close against an opening of the first body, and the second cover can close against an opening of the second body.