Handheld electric cleaner

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Solution Overview

Problem

Existing handheld electric cleaners suffer from a bulky size, poor appearance, and reduced reliability due to a simple straight-through water suction path that allows water vapor to corrode internal devices, shortening their service life.

Innovation Solution

A redesigned water suction channel comprising a rear, middle, and front channel sequence, along with a unique air suction channel, and a transversely arranged motor, ensuring a compact structure and preventing water vapor ingress into the motor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a simple straight-through water suction channel is used, then the device structure is simple and manufacturing is easy, but water vapor is directly sucked into the motor causing corrosion and reduced reliability

Engineering Contradiction:
Improvemotor reliabilityVSAvoidwater suction channel complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The water suction channel is divided into multiple segments: a water suction channel extending from the bottom surface to the middle of the sewage tank, a water vapor separation channel extending from the middle to the top surface, and an air suction channel extending from the top surface to the motor. This segmentation prevents water vapor from directly reaching the motor while maintaining reasonable structural complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The water vapor separation channel acts as an intermediary between the water suction channel and the air suction channel. It separates water vapor from the suction flow before air enters the motor, preventing corrosion while maintaining a manageable structural complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

2Shape

If the motor is vertically arranged at the rear part of the housing, then the structure is conventional and easy to manufacture, but the overall layout is poor resulting in bulky size and ugly appearance

Engineering Contradiction:
Improveappearance qualityVSAvoidmotor arrangement ease
Core Design Contradiction:
ShapeVSEase of manufacture

Solution Approach 1:

Instead of the conventional vertical arrangement of the motor at the rear part of the housing, the patent inverts this arrangement by placing the motor horizontally at the front part of the housing. This inversion improves the overall layout and appearance while remaining manufacturable

Inventive Principle:
Principle #13The other way round (Inversion)

3Volume of moving object

If the sewage tank is mounted at the front part of the housing with vertical motor arrangement, then manufacturing is conventional, but the layout is poor leading to bulky size

Engineering Contradiction:
Improvecleaner volumeVSAvoidhousing structure ease
Core Design Contradiction:
Volume of moving objectVSEase of manufacture

Solution Approach 1:

The patent changes the spatial arrangement by transitioning from a vertical motor arrangement to a horizontal motor arrangement at the front part of the housing. This dimensional change optimizes the layout and reduces the overall volume of the cleaner while remaining manufacturable

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

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 redesign enhances reliability and extends the service life by preventing motor corrosion while maintaining a compact and aesthetically pleasing design.

Implementation Method 1

the air outlet of the sewage tank is in sealed communication with an air suction opening of the motor, and provides a negative-pressure suction force for an interior of the water suction channel

Methodology Applied
Scientific EffectNegative pressure suction: Pressure Gradient

Data Source

PatentUS20250204733A1Handheld electric cleaner
Publication Date: 2025.06.26 NINGBO BRIGHTECH INT TRADING
  • US20250204733A1 patent drawing
  • US20250204733A1 patent drawing
  • US20250204733A1 patent drawing

AI summary

The present invention discloses a handheld electric cleaner, including: a housing, a motor, a battery, a sewage tank, and the like, and further including a water suction opening and an air outlet on the sewage tank, and a water suction channel inside the sewage tank, where the water suction channel is arranged to include a rear channel, a middle channel, and a front channel that are sequentially in communication. Moreover, the rear channel runs through a bottom surface of the sewage tank to form the water suction opening, the middle channel is in communication with the front channel through a side channel inside the sewage tank, and the front channel runs through a top surface of the sewage tank to form the air outlet. In this way, a suction path of the water suction channel is lengthened, and an internal structure of the water suction channel is designed uniquely, to better prevent water vapor in the sewage tank from being directly sucked into the air suction opening and corroding internal devices of the motor, thereby ensuring the use reliability of the handheld electric cleaner and extending a service life. In addition, the sewage tank is further detachably configured at a bottom of the housing, and the motor is transversely arranged and mounted at a front part of the housing, so that the structural design is more compact, the volume is small, and the appearance is more beautiful.