Handheld Suction Cleaner Control for Battery Life and Dust Load

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Solution Overview

Problem

Conventional handheld suction cleaners have limited battery life due to high power consumption at constant high rotation speed, reducing their effectiveness in dust collection and lacking intelligent control to adjust suction force and rotation rate based on operating conditions.

Innovation Solution

A handheld suction cleaner with sensing devices and a controller that adjusts the impeller module's rotation rate based on user interaction, surface proximity, and dust collection quantity, allowing for three distinct operation modes: ready-to-work, normal dust-suction, and maximum dust-suction states, thereby optimizing power usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the suction cleaner operates at a constant high rotation speed, then the dust collection capability is improved, but the battery life deteriorates

Engineering Contradiction:
Improvedust collection capabilityVSAvoidbattery life
Core Design Contradiction:
ProductivityVSDuration of action of moving object

Solution Approach 1:

The suction cleaner dynamically adjusts the rotation speed of the impeller module based on real-time detection of dust quantity. The controller receives signals from sensing devices and automatically changes the rotation speed between high, medium, and low levels, transforming the static high-speed operation into a dynamic adaptive system that maintains dust collection effectiveness while reducing unnecessary power consumption

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system implements a closed-loop feedback mechanism where sensing devices continuously detect dust particle concentration and send signals to the controller. The controller processes this feedback information and adjusts the impeller's rotation speed accordingly, creating a self-regulating system that responds to actual cleaning needs rather than operating at constant high speed

Inventive Principle:
Principle #23Feedback

2Power

If the suction cleaner operates at high rotation speed continuously, then the suction force is improved, but the power consumption increases

Engineering Contradiction:
Improvesuction forceVSAvoidpower consumption
Core Design Contradiction:
PowerVSUse of energy by moving object

Solution Approach 1:

The system applies partial action by operating the impeller at high rotation speed only when dust particles are detected by the sensing devices. When no dust is present, the system reduces to idle or low-speed operation, applying energy only to the extent necessary for the current cleaning task rather than maintaining excessive power consumption continuously

Inventive Principle:
Principle #16Partial or excessive action

3Adaptability or versatility

If the suction cleaner is designed with multiple sensing devices and adaptive control, then the intelligence and efficiency are improved, but the device complexity increases

Engineering Contradiction:
Improveintelligent control capabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sensing devices serve multiple functions: detecting dust particle concentration, triggering rotation speed adjustments, and providing feedback to the controller. The controller itself performs multiple roles including signal reception, processing, and actuation control, consolidating what could be separate components into multi-functional elements that reduce overall system complexity

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

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

The suction cleaner extends battery life by reducing power consumption through adaptive rotation rates, improving dust collection efficiency by adjusting suction force dynamically based on operating conditions, and providing a more effective cleaning experience.

Implementation Method 1

the impeller module rotates at a rotation rate, so that the suction cleaner is in the standby state

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentUS9055848B2Suction cleaner and operation method thereof
Publication Date: 2015.06.16 IND TECH RES INST
  • US9055848B2 patent drawing
  • US9055848B2 patent drawing
  • US9055848B2 patent drawing

AI summary

A suction cleaner and an operation method thereof are provided. The suction cleaner includes a housing, a holding part, an impeller module, at least one sensing device, and a controller. An end of the housing has a dust-suction opening. The impeller module is located inside the housing, and a channel is located between the impeller module and the dust-suction opening. The controller is electrically connected to the sensing device to drive and adjust the rotation rate and the suction force of the impeller module, and thus the power consumption of the suction cleaner can be reduced.