Battery for cleaner and cleaner

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Solution Overview

Problem

Existing battery designs for cleaners face challenges in compact configuration, efficient heat dissipation, and easy assembly, particularly due to protruding buttons and overlapping components that hinder space utilization and airflow.

Innovation Solution

The battery design features an asymmetric printed circuit board with a connector and board extension portion, allowing for compact configuration, improved airflow, and efficient heat dissipation through strategically formed spaces and cover portions, while enabling easy assembly and disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a button is disposed at a rear center of a battery to enable easy separation, then ease of operation is improved, but the button protrudes outward causing inefficient space utilization

Engineering Contradiction:
Improveease of separationVSAvoidspace utilization
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The button is nested within a recessed space formed by the upper housing and printed circuit board, allowing the button to be operated without protruding outward from the battery exterior. This nesting approach resolves the contradiction by providing operational access while maintaining compact dimensions.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

Instead of placing the button on the external surface (2D plane), the button is positioned in a recessed cavity that utilizes the third dimension (depth) of the battery structure. This dimensional transition allows the button to be accessible for operation while not increasing the external footprint of the battery.

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

2Volume of moving object

If components are arranged compactly to reduce battery size, then volume is reduced, but heat dissipation becomes difficult

Engineering Contradiction:
Improvebattery sizeVSAvoidheat dissipation
Core Design Contradiction:
Volume of moving objectVSTemperature

Solution Approach 1:

Air is introduced as an intermediary cooling medium that flows through the space between the printed circuit board and upper housing. This air flow acts as a heat transfer mediator, carrying away heat from the compactly arranged components without requiring increased battery volume or complex cooling systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent utilizes natural convection currents (a pneumatic principle) where air flows through the internal cavity to remove heat. The asymmetric design of the printed circuit board and housing creates channels that guide air flow, enabling passive thermal management in the compact structure.

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Volume of moving object

If the printed circuit board is made asymmetric to improve space utilization, then manufacturing precision requirements increase

Engineering Contradiction:
Improvespace utilizationVSAvoidassembly precision
Core Design Contradiction:
Volume of moving objectVSManufacturing precision

Solution Approach 1:

The printed circuit board is deliberately designed with an asymmetric shape that matches the asymmetric internal cavity of the upper housing. This asymmetry enables precise positioning and nesting of components, maximizing space utilization while the complementary asymmetric features of the housing provide natural alignment guides that reduce assembly difficulty.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS20240405344A1Battery for cleaner and cleaner
Publication Date: 2024.12.05 LG ELECTRONICS INC
  • US20240405344A1 patent drawing
  • US20240405344A1 patent drawing
  • US20240405344A1 patent drawing

AI summary

The present disclosure relates to a cleaner including a battery, in which a battery includes a protruding portion protruding from a battery body to one side, and a button disposed on the protruding portion and configured to selectively fix the battery body to a battery accommodation portion, in which the button is easily operated to separate a handle, and the button does not protrude outward, such that the battery may be compactly configured.