Ejecting DVD Deck Mechanism for Vehicle Trim Panel Integration

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Solution Overview

Problem

The integration of DVD players and stereos in vehicle center fascias leads to reduced space utilization and increased risk of passenger injury in collisions, as well as compromised storage space when separated and installed in consoles or glove boxes.

Innovation Solution

An apparatus for ejecting an electric DVD deck, featuring a housing fixedly disposed in a vehicle body trim panel, an actuator for upward and downward movement, a sensor for detecting movement, and a control module to manage the actuator, allowing the DVD deck to automatically return to its internal space when not in use, thereby preventing knee injuries and optimizing storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the DVD player and stereo are integrally formed and installed in the center fascia, then the installation is simplified, but the space utilization of the center fascia deteriorates and the crash pad lacks openness

Engineering Contradiction:
Improveinstallation simplicityVSAvoidcenter fascia space utilization
Core Design Contradiction:
Ease of manufactureVSArea of stationary object

Solution Approach 1:

The DVD player is separated from the stereo and installed as an independent movable unit in the glove box area, allowing the center fascia to maintain a clean, open appearance while the DVD player can be accessed when needed. This segmentation resolves the contradiction by dividing the integrated unit into separate functional modules.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The DVD player is designed with movable capabilities, allowing it to slide out for access and slide back in when not in use. This dynamic design allows the installation to adapt between providing access to the DVD player and maintaining an open, space-efficient center fascia appearance, resolving the contradiction between installation simplicity and space utilization.

Inventive Principle:
Principle #15Dynamics

2Area of stationary object

If the DVD player is built in the console or glove box, then the center fascia space is optimized, but the storage space of the console or glove box is reduced

Engineering Contradiction:
Improvecenter fascia spaceVSAvoidglove box storage space
Core Design Contradiction:
Area of stationary objectVSVolume of stationary object

Solution Approach 1:

The DVD player is designed to move in and out of the glove box area along a sliding track, utilizing the depth dimension rather than occupying fixed horizontal or vertical space. This allows the DVD player to be stored within the glove box volume when not in use, minimizing its impact on storage space, while still providing access when needed.

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

Solution Approach 2:

The DVD player unit is designed to nest within the glove box structure when retracted, fitting into the available space without permanently reducing the glove box's storage capacity. The movable design allows the DVD player to be tucked away when not in use, resolving the contradiction between center fascia optimization and glove box storage space.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Area of stationary object

If the DVD player is built in the console or glove box, then the center fascia space is optimized, but passengers may be considerably injured in the event of a collision

Engineering Contradiction:
Improvecenter fascia spaceVSAvoidpassenger injury risk
Core Design Contradiction:
Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The DVD player is designed as a movable unit that can slide out of the way in the event of a collision or when not in use, rather than being a fixed hard structure in the glove box area. This dynamic design reduces the risk of injury to passengers' knees during collisions while maintaining center fascia space optimization.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If the DVD deck is made movable for easy access, then convenience is improved, but the risk of malfunction and inability to return to initial position increases

Engineering Contradiction:
ImproveDVD deck accessibilityVSAvoidmovement reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A sensor is installed to detect the position of the DVD player and provide feedback to the control module. When the sensor detects that the DVD player has not returned to its initial position or encounters an abnormality during movement, it signals the control module to activate the motor in reverse, automatically returning the DVD player to its starting position. This feedback mechanism resolves the contradiction by providing automatic correction for movement failures while maintaining ease of operation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system includes an automatic return function that activates when the sensor detects abnormal movement or failure to reach the target position. The motor automatically reverses direction to return the DVD player to its initial position without requiring manual intervention, resolving the reliability concern while maintaining operational convenience.

Inventive Principle:
Principle #25Self-service

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

Enhances convenience and safety by reducing knee injury risks, optimizing storage space, and improving design flexibility by allowing the DVD deck to be electrically controlled for easy use and automatic return, thus addressing the limitations of traditional installations.

Implementation Method 1

an actuator disposed between the housing and the DVD deck such that the DVD deck is ejected from the internal space of a vehicle body trim panel by upward and downward movement of the DVD deck

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

The actuator may include a motor to generate power for the movement of the DVD deck, a power transmitter disposed between the motor and the DVD deck to transmit the power of the motor to the DVD deck

Methodology Applied
Scientific EffectMechanical advantage: Mechanical Advantage

Implementation Method 3

a friction pad may be disposed between the helical gear and the spur gearing to transmit power therebetween, in which slip occurs between the helical gear and the spur gearing when a load greater than frictional force of the friction pad may be input

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS9925929B2Apparatus for ejecting electric dvd deck
Publication Date: 2018.03.27 HYUNDAI MOTOR CO LTD
  • US9925929B2 patent drawing
  • US9925929B2 patent drawing
  • US9925929B2 patent drawing

AI summary

An apparatus for ejecting an electric DVD deck may include a housing fixedly disposed in an internal space of a vehicle body trim panel, the DVD deck disposed in a lower portion of the housing, an actuator disposed between the housing and the DVD deck such that the DVD deck is ejected from the internal space of the vehicle body trim panel by upward and downward movement of the DVD deck, a sensor to detect upward and downward movement of the DVD deck, and a control module to control the actuator, in which, when a signal of the sensor is not received within a reference time during operation of the actuator, the control module may allow the DVD deck to return to a movement start position.