Thermal insulation layer, vehicle refrigerator and vehicle

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Solution Overview

Problem

The filling of foam material between the casing and inner liner of a vehicle refrigerator causes the inner liner and thermal insulation material to offset, leading to appearance deformation and reduced thermal insulation capacity due to mismatching.

Innovation Solution

A positioning structure is arranged between the casing and inner liner, comprising inner and thermal isolation layer positioning members, including support seats, nut posts, screws, and reinforcing ribs, to maintain the position of the inner liner and thermal isolation member during foam filling, ensuring proper alignment and thermal insulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If foam material is filled between the casing and inner liner to ensure refrigeration effect, then thermal insulation capacity is improved, but the inner liner and thermal insulation material offset causing appearance deformation and reduced thermal insulation capacity

Engineering Contradiction:
Improvethermal insulation capacityVSAvoidpositioning accuracy of inner liner and thermal insulation material
Core Design Contradiction:
Loss of energyVSManufacturing precision

Solution Approach 1:

Positioning structures (positioning holes in casing, positioning protrusions on inner liner, positioning grooves on thermal insulation material) are designed and installed before foam filling. These preliminary positioning features ensure that the inner liner and thermal insulation material maintain their correct relative positions during the subsequent foam filling process, preventing offset and deformation while preserving thermal insulation capacity.

Inventive Principle:
Principle #10Preliminary action

2Temperature

If foam material is filled to provide thermal insulation, then refrigeration effect is improved, but thrust from foam material causes offset and matching problems

Engineering Contradiction:
Improverefrigeration effectVSAvoidappearance deformation
Core Design Contradiction:
TemperatureVSShape

Solution Approach 1:

The positioning structures (screws, positioning protrusions, and grooves) are installed before foam filling to create preliminary counter-actions that resist the thrust forces generated during foam expansion. These positioning features prevent the inner liner and thermal insulation material from offsetting under foam thrust, thereby avoiding appearance deformation while allowing the foam to provide its thermal insulation function.

Inventive Principle:
Principle #9Preliminary anti-action

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 positioning structure prevents offset and deformation, maintaining the thermal insulation capacity and ensuring a matching effect, thus improving the thermal insulation performance and overall quality of the vehicle refrigerator.

Implementation Method 1

A thermal isolation member (3) is arranged between the inner liner (2) and the casing (1)... the heat exchange between the inside and the outside of the thermal isolation layer can be reduced, and the thermal insulation effect can be improved

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS20260055955A1Thermal insulation layer, vehicle refrigerator and vehicle
Publication Date: 2026.02.26 BEIJING CHEHEJIA AUTOMOBILE TECH CO LTD
  • US20260055955A1 patent drawing
  • US20260055955A1 patent drawing
  • US20260055955A1 patent drawing

AI summary

A thermal insulation layer, a vehicle refrigerator and a vehicle are provided. The thermal insulation layer includes a casing, an inner liner, and a thermal isolation member arranged between the casing and the inner liner. A positioning structure is arranged between the casing and the inner liner, and the inner liner and the thermal isolation member are positioned on the casing through the positioning structure.