Caravan Cabinet System with Integrated Air Conditioning Ducts

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Solution Overview

Problem

Conventional air conditioning solutions for caravans either alter the vehicle's height and center of gravity or sacrifice valuable storage space, limiting interior expansion options.

Innovation Solution

A modular cabinet system with adjustable components and integrated air ducts allows for flexible installation of air conditioning units, keeping the center of gravity low and preserving storage space by separating heavy components and using predefined interfaces for easy assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If rooftop air conditioners are mounted on the roof of the caravan, then air conditioning function is provided, but the height and center of gravity of the caravan are adversely changed

Engineering Contradiction:
Improveair conditioning installationVSAvoidcaravan height
Core Design Contradiction:
Ease of manufactureVSLength of stationary object

Solution Approach 1:

The air conditioning system is divided into separate components: the air handling unit is installed inside the caravan in a cabinet system, while the heavy mechanical components (compressor, condenser, fan) are positioned in a separated location, preferably at the lower part of the vehicle structure. This segmentation allows the air conditioning function to be provided without mounting equipment on the roof that would increase height.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of installing the air conditioner in the vertical dimension (on the roof), the solution moves the air handling functions to the horizontal dimension within the caravan's interior cabinet system. The heavy components are positioned in the lower horizontal plane, effectively redistributing weight and volume across different spatial dimensions to avoid height increase.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If storage space air conditioners are installed inside the caravan, then air conditioning function is provided, but valuable storage space is sacrificed and interior expansion options are limited

Engineering Contradiction:
Improveair conditioning installationVSAvoidstorage space
Core Design Contradiction:
Ease of manufactureVSVolume of stationary object

Solution Approach 1:

The cabinet system is designed as a multi-functional unit that can serve both as storage furniture and as the housing for the air conditioning system. The same cabinet structure provides storage compartments for the end user while simultaneously housing the air handling unit, ductwork connections, and control elements. This eliminates the need for dedicated air conditioner space that would otherwise reduce storage capacity.

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

Solution Approach 2:

The invention merges the storage cabinet function with the air conditioning housing function into a single integrated unit. The cabinet walls form both the storage enclosure and the air conditioner housing, the cabinet base supports both storage items and the air conditioning components, and the overall structure serves dual purposes, thereby maximizing space utilization without sacrificing storage capacity.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If a standardized cabinet system with integrated air ducts is used, then flexible interior design and easy installation are enabled, but system complexity increases

Engineering Contradiction:
Improveinterior design flexibilityVSAvoidcabinet system structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cabinet system is pre-configured with integrated air ducts, predefined connection openings at various heights, and pre-arranged mounting positions for air conditioning components during the caravan manufacturing process. This preliminary preparation eliminates the need for complex on-site ductwork installation and simplifies the air conditioning unit installation, as customers only need to connect pre-defined interfaces rather than design and install entire duct systems.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3121042B1Cabinet system for a caravan
Publication Date: 2020.01.01 TRUMA GERATETECHNIK GMBH & CO KG
  • EP3121042B1 patent drawingFigure 1
  • EP3121042B1 patent drawingFigure 2
  • EP3121042B1 patent drawingFigure 3

AI summary

The invention relates to a cabinet system (10) for a caravan, comprising at least two vertical cabinet walls (12, 14, 16), at least one cabinet shelf (18, 22) which is adjustable at one of several predetermined heights between the cabinet walls (12, 14, 16), and a pre-installation (28, 30, 32, 36, 38) for an air conditioning unit which can be installed in the cabinet system.