Detachable Battery Cover Wireless Input Interface Mobile Phone

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Solution Overview

Problem

Traditional mobile phones face challenges in providing efficient data input due to limited space, leading to inconvenient key pressing on compact keyboards and decreased portability when external keyboards are used for additional functions.

Innovation Solution

A mobile phone design featuring a battery cover with an integrated input interface and wireless transmission module, allowing for additional operation modes without occupying extra space or volume, enabling users to switch between input modes by detaching the battery cover.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a compact keyboard is coupled to the PDA-phone, then additional functions are provided, but the key dimension becomes too small causing user inconvenience

Engineering Contradiction:

Improveadditional functionsVSAvoidkey pressing convenience

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The keyboard is divided into two segments: a built-in compact keyboard for basic functions and a detachable external keyboard for additional functions. This segmentation allows the external keyboard to have larger, more comfortable keys while the main device remains compact.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The keyboard configuration is made dynamic through the ability to detach and attach the external keyboard as needed. Users can switch between compact mode (built-in keyboard only) and expanded mode (both keyboards connected), adapting the system to different operational requirements.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If an externally connected keyboard is attached to the PDA, then additional keys for added functions are achieved, but the portability of the mobile phone decreases

Engineering Contradiction:

Improveexpanded keysVSAvoidportability

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The external keyboard is designed as a detachable component that users can attach only when additional keys are needed. When not in use, the keyboard can be removed, maintaining the portability and compactness of the original device while providing expanded functionality on demand.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The external keyboard serves multiple functions: it provides additional keys for extended functionality, can be used as a protective cover for the device, and can be detached when not needed. This multi-functionality reduces the need for separate accessories.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If USB devices or wireless connection devices are used to couple the keyboard, then the keyboard can be connected, but the portability is compromised

Engineering Contradiction:

Improvekeyboard coupling capabilityVSAvoidconnection requirements

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces complex electrical connection systems (USB cables, wireless Bluetooth modules) with a simple mechanical snap-fit connection. The external keyboard attaches directly to the device housing through complementary geometric shapes, eliminating the need for separate connection devices and reducing overall system complexity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS7941190B2Mobile phone

Publication Date: 2011.05.10 ZHIGU HLDG

AI summary

A battery cover of a mobile phone includes an input interface formed on one side thereof; and a wireless transmission module. The input interface is capable of operating thereon, and the wireless transmission module is capable of conducting wireless communication between the battery cover and the mobile phone when the battery cover is detached from the mobile phone.