Vehicle Armrest Layout for Dual Temperature-Controlled Cup Holders

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Solution Overview

Problem

Current techniques for mounting cup holders with cooling and heating functions in vehicles are not commercially viable and cannot be optimized for use as an armrest in a rear seat, lacking efficient integration and space optimization.

Innovation Solution

An armrest design incorporating an intake port, exhaust port, blower, intake duct, exhaust duct, and thermoelements arranged to provide cooling and heating functions, allowing for a pair of cup holders in a side-by-side configuration within a narrow armrest width, with the blower connected to the intake port and exhaust duct branching to each cup holder, ensuring efficient air flow and heat exchange.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional cooling and heating box with thermoelements is used, then cooling and heating functions are provided, but the structure cannot be optimized for use as an armrest in a rear seat and lacks efficient integration

Engineering Contradiction:
Improveadaptability as armrestVSAvoidintegration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent integrates multiple functions into a single armrest structure: the armrest body serves as both a seating support and a housing for the cooling/heating system. The cup holders are built into the armrest, and the thermoelement system is embedded within the armrest structure, allowing it to function as both an armrest and a temperature-controlled beverage storage unit.

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

Solution Approach 2:

The patent combines the armrest structure with the cooling and heating box structure into a unified design. The intake and exhaust ports are integrated into the armrest body, the blower is housed within the armrest, and the cup holders are positioned above the intake duct, merging previously separate components into a single integrated armrest assembly.

Inventive Principle:
Principle #5Merging (Combining)

2Quantity of substance

If a pair of cup holders are installed in a side by side configuration, then both cup holders can be accommodated, but the armrest width must be increased

Engineering Contradiction:
Improvenumber of cup holdersVSAvoidarmrest width
Core Design Contradiction:
Quantity of substanceVSLength of moving object

Solution Approach 1:

The patent arranges the pair of cup holders in a side-by-side configuration along the lateral direction of the armrest body, utilizing the width dimension efficiently. The intake duct is positioned below the cup holders and extends rearwards, allowing the cup holders to be arranged laterally without significantly increasing the overall armrest width. The exhaust duct branches off to pass by the cup holders, optimizing spatial arrangement.

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

3Reliability

If thermoelements are mounted on the perimeter of the bottom of the box with ducts for heat exhaust, then cooling and heating efficiency is enhanced, but the structure cannot be optimized for armrest use

Engineering Contradiction:
Improvecooling and heating efficiencyVSAvoidadaptability as armrest
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent positions the thermoelements specifically on the cup holders rather than uniformly on the perimeter of the bottom. Each cup holder is equipped with a thermoelement that is brought into close contact with the exhaust duct, providing localized temperature control where it is most needed - at the beverage contact points - rather than uniform heating/cooling of the entire box structure.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The exhaust duct serves as an intermediary component that facilitates heat exchange between the thermoelements and the air flow system. The thermoelements are brought into close contact with the exhaust duct, which then transports the heat away from the cup holders, enabling efficient cooling or heating of the beverages without requiring direct exposure to the air flow from the blower.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Adaptability or versatility

If the armrest is designed to function as both armrest and seatback, then versatility is improved, but the integration of air-conditioning lines and thermoelements becomes more complex

Engineering Contradiction:
Improvedual function as armrest and seatbackVSAvoidair-conditioning line integration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The armrest is designed with rotational capability, allowing it to pivot between a horizontal armrest position and a vertical seatback position. The air-conditioning lines, intake duct, and exhaust duct are configured to accommodate this rotational movement, with the ducts positioned and routed to maintain functionality in both orientations. The blower and other components are mounted to allow for the dynamic repositioning of the armrest.

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 design enhances marketability by providing reliable cooling and heating functions while allowing the armrest to function as both a seatback and armrest, ensuring comfort and safety, even in accidents, and maintaining air-conditioning efficiency without increasing weight or noise.

Implementation Method 1

Such cup holders are typically provided with thermoelements that use electrical energy to provide two kinds of functions, including cooling and heating functions

Methodology Applied
Scientific EffectPeltier effect: Peltier Effect

Implementation Method 2

a blower installed in the armrest body and connected to the intake port by an intake duct

Methodology Applied
Scientific EffectForced convection: Forced Convection

Implementation Method 3

an exhaust duct extending from the blower and branching off into a plurality of diverged parts passing by the respective cup holders

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Data Source

PatentUS9016777B2Armrest for vehicle
Publication Date: 2015.04.28 HYUNDAI MOTOR CO LTD
  • US9016777B2 patent drawing
  • US9016777B2 patent drawing
  • US9016777B2 patent drawing

AI summary

The present invention relates to an armrest for a vehicle. The armrest includes: an intake port which is formed in a front surface of a front end of an armrest body; an exhaust port which is formed in a rear end of the armrest body; a blower which is installed in the armrest body and connected to the intake port by an intake duct; a plurality of cup holders which are arranged in a row above the intake duct; an exhaust duct which extends from the blower and branching off into a plurality of diverged parts that pass by the respective cup holders and are connected to the exhaust port; and a thermoelement which is provided on each of the cup holders and is brought into close contact with the exhaust duct.