Portable Casing Locking Mechanism for One-Step Battery and Door Release

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Solution Overview

Problem

The existing casing structures for portable electronic apparatuses, such as notebooks, are complicated to open for maintenance and component changes due to cumbersome locking mechanisms that require detaching the battery and loosening screws, posing risks of damage from short circuits or electrostatic discharge.

Innovation Solution

A locking mechanism comprising a first and second locking structure, a manipulation part, a third and fourth locking structure, and a return spring, allowing simultaneous locking and unlocking of the electronic-device casing and door, enabling quick access for maintenance by engaging and disengaging these structures with a single manipulation action.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screws are used to fix the door and separate locking mechanisms are used for battery and door, then the fixing strength and reliability are improved, but the operation complexity and time required for maintenance increase

Engineering Contradiction:
Improvefixing strengthVSAvoidoperation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent combines multiple locking functions into a single integrated locking mechanism. The locking structure includes a locking bar that can simultaneously engage with both the battery pack and door, controlled by a single operation. This merging of separate locking mechanisms (battery lock and door lock) into one unified system allows simultaneous locking/unlocking of both components, reducing operational steps while maintaining secure fixing through the integrated locking bar engagement.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The locking mechanism is designed with multi-functionality to perform multiple locking tasks. The locking bar can engage with different components (battery pack and door) depending on its position, and the single operational input can trigger both locking and unlocking actions. This universal design allows one mechanism to replace multiple separate locking systems, simplifying the user interface while maintaining reliable fixation of both the battery and door.

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

2Reliability

If multiple separate locking mechanisms are used for battery and door, then the reliability of each component is improved, but the device complexity and number of parts increase

Engineering Contradiction:
Improvecomponent securityVSAvoidnumber of locking mechanisms
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the battery locking mechanism and door locking mechanism into a single integrated locking structure. The locking bar serves dual purposes: it can engage with the battery pack to secure it in place, and it can engage with the door to lock it closed. By combining these functions into one mechanism controlled by a single actuator, the patent reduces the total number of locking mechanisms from two separate systems to one unified system, thereby reducing device complexity while maintaining component security.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The locking mechanism is designed as a universal system that can perform multiple locking functions. The locking bar can selectively engage with different components (battery or door) based on its position, and the single operational input can trigger both locking and unlocking actions for both components. This multi-functional design allows one mechanism to replace multiple separate locking systems, simplifying the overall device structure while maintaining reliable security for both the battery and door.

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

3Reliability

If separate operations are required to detach battery and open door, then the security and reliability are improved, but the productivity and speed of maintenance decrease

Engineering Contradiction:
ImprovesecurityVSAvoidmaintenance speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent combines the battery detachment function and door opening function into a single operational action. When the user operates the locking mechanism (e.g., presses the release button), the locking bar simultaneously disengages from both the battery pack and the door. This allows the user to both detach the battery and open the door in one motion, dramatically improving maintenance speed and productivity while maintaining security through the controlled simultaneous release of both locked components.

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If manual screw loosening is required to open the door, then the reliability of component fixation is improved, but the ease of operation and user convenience deteriorate

Engineering Contradiction:
Improvefixation reliabilityVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the traditional screw-based mechanical fixation system with a spring-loaded locking bar mechanism. Instead of requiring users to manually loosen screws with tools, the locking bar uses spring force to automatically engage with and secure the door and battery pack. The unlocking process is simplified to a single button press or lever operation that releases the spring-loaded locking bar, eliminating the need for manual screw manipulation while maintaining reliable fixation through the spring-loaded engagement system.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

This solution simplifies the opening operation by allowing users to unlock and detach the electronic-device casing and door simultaneously, reducing the complexity and risk of damage during maintenance, while also reducing the number of locking mechanisms required in the casing structure.

Implementation Method 1

a return spring (192) urging against and between the manipulation part (186) and the apparatus casing (12)

Methodology Applied
Scientific EffectSpring: Spring

Data Source

PatentUS8693190B2Casing structure for portable electronic apparatus and locking mechanism thereof
Publication Date: 2014.04.08 WISTRON CORP
  • US8693190B2 patent drawing
  • US8693190B2 patent drawing
  • US8693190B2 patent drawing

AI summary

A casing structure and a locking mechanism thereof for portable electronic apparatus are disclosed. The casing structure includes an apparatus casing, an electronic device casing, and a door. The electronic device casing is engaged to the apparatus casing in a detachable way. The door is engaged to the apparatus casing in an open-able way to cover an open of the apparatus casing. The locking mechanism is mainly disposed on the apparatus casing and can be operative to lock or unlock the electronic device casing and the door simultaneously. Thereby, a user can quickly detach the electronic device casing and open the door to maintain or replace components in the apparatus casing, which avoids the complicated operation of opening the casing in the prior art.