Microbubble spray head

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Solution Overview

Problem

Existing micro-bubble generators have a complicated structure and high manufacturing cost due to the need for multiple components and complex connection structures.

Innovation Solution

A micro-bubble spray head with a one-piece spray pipe featuring at-least-one-stage diameter-decreased conical parts, flow disturbing parts, and a bubbler that generates micro-bubbles by utilizing negative pressure to mix air with water, eliminating the need for separate components and connection structures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple components and complex connection structures are used in micro-bubble generators, then the device can achieve micro-bubble generation function, but the structure becomes complicated and manufacturing cost increases

Engineering Contradiction:
Improvemicro-bubble generation functionVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates the spray pipe, air inlet, and bubbler into a unified structure where the spray pipe itself serves as the air inlet through integrated air holes, eliminating the need for separate air inlet components and complex connections while maintaining micro-bubble generation functionality

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The spray pipe is designed to perform multiple functions simultaneously: it serves as both the water delivery channel and the air inlet structure through integrated air holes, making the component universal and reducing overall device complexity

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

2Reliability

If multiple components and complex connection structures are used in micro-bubble generators, then the device can achieve micro-bubble generation function, but manufacturing cost increases

Engineering Contradiction:
Improvemicro-bubble generation functionVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

By combining multiple functions into the spray pipe component itself, the number of parts to be manufactured, assembled, and connected is reduced, directly lowering manufacturing costs while preserving micro-bubble generation capability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The spray pipe incorporates segmented air holes at specific positions to create negative pressure zones, achieving complex fluid dynamics functions through simple geometric features rather than additional components

Inventive Principle:
Principle #1Segmentation

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 simplified design achieves effective micro-bubble generation with reduced components, lowering manufacturing costs while maintaining performance.

Implementation Method 1

a water flow flowing through the at-least-one-stage diameter-decreased conical part generates a negative pressure in the one-piece spray pipe after the water flow is sprayed from the spray hole

Methodology Applied
Scientific EffectNegative pressure: Pressure Drop

Implementation Method 2

at-least-one-stage diameter-decreased conical part is provided in the one-piece spray pipe in a water flow direction

Methodology Applied
Scientific EffectVenturi effect: Venturi Effect

Implementation Method 3

the bubbler is fixed to the outlet end of the one-piece spray pipe and is configured to be capable of forming micro-bubble water when the bubble water flows through the bubbler

Methodology Applied
Scientific EffectBubble formation: Bubble

Data Source

PatentEP4043633B1Microbubble spray head
Publication Date: 2026.02.11 QINGDAO HAIER DRUM WASHING MACHINE CO LTD
  • EP4043633B1 patent drawingFigure 1
  • EP4043633B1 patent drawingFigure 2
  • EP4043633B1 patent drawingFigure 3~4

AI summary

The present invention relates to a microbubble spray head and a washing apparatus with the same. The microbubble spray head comprises a spray pipe, wherein the spray pipe is of an integrated or two-part hollow pipe structure, an air inlet channel is provided in the spray pipe, the spray pipe is configured to enable water flow to generate negative pressure in the spray pipe, external air is sucked into the spray pipe via the air inlet channel by means of the negative pressure and is mixed with water flow in the spray pipe to form bubble water; and a bubbler, wherein the bubbler is fixed at the outlet end of the spray pipe and is configured to be capable of forming microbubble water when the bubble water flows through the bubbler. The microbubble spray head has good microbubble generation performance and low manufacturing costs.