Sub Battery Holder Structure for Removable USB Cable Retention

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Solution Overview

Problem

Portable sub batteries with integrated USB charging connectors face issues of connector disconnection and damage when dropped, and separate USB charging cables are inconvenient to carry and prone to loss.

Innovation Solution

A sub battery design featuring a removable USB charging connector cable that can be coupled to a holder, allowing it to be used as a strap for easy carrying and reducing the risk of loss, while also being a separate, purchasable component.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a USB charging connector is integrated into a battery body, then charging function is provided, but the connector may disconnect or be damaged when the battery is dropped

Engineering Contradiction:

Improvecharging functionVSAvoidconnector connection stability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The USB charging connector is separated from the battery body and placed in a removable holder. This segmentation allows the connector to be protected within the holder structure, reducing direct exposure to impact forces during drops while maintaining charging functionality when needed.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The holder structure is designed to cushion and absorb impact forces before they reach the USB connector. The holder acts as a protective barrier that mitigates damage from drops, preventing connector disconnection or damage while maintaining charging capability.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Adaptability or versatility

If a USB charging connector cable is configured to be removable from a battery body, then flexibility is improved, but the cable is inconvenient to carry and prone to loss

Engineering Contradiction:

Improvecable flexibilityVSAvoidcable carrying convenience

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The USB charging connector cable is merged with the holder structure, creating an integrated assembly. The cable can be wrapped around or attached to the holder, combining the cable and holder into a single carryable unit that prevents loss while maintaining flexibility and removability.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If a USB charging connector cable is configured to be removable from a battery body, then user choice is improved, but the risk of losing the cable increases

Engineering Contradiction:

Improveuser choiceVSAvoidcable retention

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The USB charging connector cable is nested within or around the holder structure. This nesting arrangement allows the cable to be stored securely within the holder when not in use, preventing loss while maintaining the ability to be removed and replaced according to user preference.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentEP3503248B1battery

Publication Date: 2024.03.06 SAMSUNG ELECTRONICS CO LTD

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AI summary

A sub battery for easily charging includes: a battery body including a first surface facing toward a first direction and a second surface facing toward a second direction opposite the first direction, and an opening formed on at least a portion between the first and second surfaces; a holder having a charging connector cable attachably and detachably fixed thereto, and movably disposed in the opening; and a locking device mounted between the holder and the battery body to fix the holder to the battery body in a closed state, and to unlock the holder according to a movement of the holder by a first distance.