Mobile Display Base With Built-In Power for Cord-Free Placement

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Solution Overview

Problem

Existing mobile display devices require placement near a wall socket, making them inconvenient to move and vulnerable to external forces due to the use of extension cords, which can break easily.

Innovation Solution

A mobile display device with a movable base equipped with movement casters and a built-in elevation device using an extendible/contractable rod, along with multiple electrical power supply devices arranged within the base to provide extended operation time and mobility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If extension cord is used to power the display device at locations far from wall socket, then operation range is extended, but the extension cord becomes vulnerable to external forces and may break

Engineering Contradiction:
Improveoperation rangeVSAvoidextension cord durability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent extracts the power supply function from the external wall socket and extension cord system, and integrates it into the mobile display device itself through built-in batteries. This eliminates the vulnerable extension cord while maintaining the ability to operate at any location, thus resolving the contradiction between extended operation range and cable durability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The mobile display device becomes self-sufficient in power supply through integrated batteries, eliminating dependence on external power sources. The device serves its own power needs internally, allowing free movement without extension cords and thereby solving the reliability issue while maintaining operational versatility.

Inventive Principle:
Principle #25Self-service

2Reliability

If the display device is made heavy to include display, main body, and elevation mechanism, then elevation function is achieved, but moving or transporting becomes inconvenient

Engineering Contradiction:
Improveelevation functionVSAvoidmobility convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies dynamics by making the entire display device mobile rather than fixed. The elevation mechanism is integrated into a mobile platform with casters, allowing the heavy device to be dynamically moved to different locations. This transforms the static heavy structure into a dynamically movable system, resolving the contradiction between maintaining elevation function and improving mobility convenience.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mobile base serves multiple functions: it supports the heavy display structure, provides mobility through casters, and enables repositioning. By making the base universal and multi-functional, the patent accommodates both the weight requirement for stable elevation and the mobility requirement for convenient transport.

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

3Adaptability or versatility

If electrical power supply devices are arranged in the first receiving space, then operation time is extended and mobility is improved, but device complexity increases

Engineering Contradiction:
Improvemobility and operation timeVSAvoidinternal structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent uses nesting by placing the electrical power supply devices (batteries) inside the first receiving space of the mobile base, which is already part of the existing structure. This nested arrangement integrates the power supply system within the available internal volume without adding significant external complexity, thus achieving extended operation time and mobility while minimizing structural complexity increase.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS12289848B2Mobile display device
Publication Date: 2025.04.29 OXTI PTE LTD
  • US12289848B2 patent drawing
  • US12289848B2 patent drawing
  • US12289848B2 patent drawing

AI summary

A mobile display device includes: a movable base having a first receiving space and a second receiving space and including a back board, a bottom board, on which a plurality of movement casters are mounted, a top board, in which an opening is formed, and two lateral boards, and further including a first movable shielding cover; an elevation device arranged in the second receiving space and including an extendible/contractable rod, and a display device arranged on the extendible/contractable rod; a plurality of electrical power supply devices arranged in the first receiving space and supplying electrical power to the elevation device and the display device. With the electrical power supply devices being arranged in the first receiving space and supplying power to the elevation device and the display device, the display device is allowed to move in the vertical direction through the opening and an effect of arbitrarily placing is achieved.