Cleaning device and control method therefor

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Solution Overview

Problem

Users face inconvenience when using liquid cleansers due to uncontrollable outflow from containers, requiring repeated squeezing and pouring.

Innovation Solution

A cleaning device with a main body housing, a cleaning liquid tank, pressure sensors, and a flow controller that adjusts the flow limiting area of liquid outlets based on pressure signals, allowing users to control the outflow by gripping pressure, eliminating the need for repeated squeezing and pouring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If liquid cleanser is stored in a container, then the cleaning liquid can be stored and transported, but the liquid will uncontrollably overflow when squeezed, requiring repeated squeezing and pouring

Engineering Contradiction:
Improveease of useVSAvoidloss of cleaning liquid
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The patent changes the parameter of flow control by using a pressure-sensitive component that responds to squeezing force. The flow limiting hole's opening area dynamically adjusts based on the pressure applied, transforming the uncontrollable overflow into a controlled flow that matches user needs.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The pressure-sensitive component provides feedback on the squeezing force applied by the user. This feedback mechanism allows the flow limiting hole to automatically adjust its opening area in response to the user's input, eliminating the need for repeated squeezing and pouring while preventing overflow.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If a flow limiting hole is provided on the container, then the liquid outflow can be controlled, but the structure becomes more complex

Engineering Contradiction:
Improveflow controlVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The pressure-sensitive component automatically adjusts the flow limiting hole's opening area in response to squeezing force without requiring external control mechanisms. The system serves itself by using the user's own squeezing action as the control signal, simplifying the overall structure while maintaining flow control functionality.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The pressure-sensitive component acts as an intermediary between the user's squeezing force and the flow limiting hole. This intermediary translates mechanical pressure into flow control, enabling precise regulation without complex mechanical linkages or additional control systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enhances user convenience by allowing controlled liquid outflow, reducing the need for repeated squeezing and pouring, and providing intelligent use of cleaning liquids.

Implementation Method 1

one or more pressure sensors, arranged on the gripping portion

Methodology Applied
Scientific EffectPressure sensing:

Implementation Method 2

the control component being electrically connected to the one or more pressure sensors to drive the flow limiters and change flow limiting area of the flow limiters fitted with the liquid outlet, according to a pressure signal transmitted by the one or more pressure sensors

Methodology Applied
Scientific EffectPressure-driven flow control: Pressure Gradient

Data Source

PatentUS11370003B2Cleaning device and control method therefor
Publication Date: 2022.06.28 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US11370003B2 patent drawing
  • US11370003B2 patent drawing
  • US11370003B2 patent drawing

AI summary

A cleaning device includes a main body housing, a cleaning liquid tank, a pressure sensor and a flow controller. By arranging one or more pressure sensors on a gripping portion of the main body housing and movably fitting flow limiters of the flow controller with liquid outlets of the cleaning liquid tank, a control component of the flow controller drives the flow limiters according to a pressure signal transmitted by the one or more pressure sensors, such that a flow limiting area of the flow limiters fitted with the liquid outlets is changed. As such, when gripping the cleaning device, a user can control an outflow of cleaning liquid by a pressure applied to the one or more pressure sensors by hand during gripping, such that the liquid outflow meets use requirement for each single squeeze.