Multi-Nozzle Ventilation System to Reduce Damper Mechanism Complexity

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Solution Overview

Problem

Existing ventilation systems require complex nozzle structures with damper mechanisms to change ventilation direction, leading to intricate designs.

Innovation Solution

A ventilation system with a simplified nozzle structure that utilizes a nozzle unit comprising at least two nozzles arranged side by side, controlled by a ventilation device and a control device to adjust airflow direction without the need for damper mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If damper mechanisms are provided in each nozzle to change ventilation direction, then ventilation direction can be adjusted, but nozzle structure becomes complex

Engineering Contradiction:
Improveventilation direction adjustmentVSAvoidnozzle structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system divides the ventilation function into two independent parts: fixed nozzles that maintain simple structure, and a movable ventilation device that handles direction adjustment. This segmentation eliminates the need for complex damper mechanisms within each nozzle while preserving ventilation direction control capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A separate ventilation device acts as an intermediary between the air source and the nozzles. This intermediary component performs the function of directing airflow, allowing the nozzles themselves to remain structurally simple without integrated dampers.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple nozzles are arranged side by side, then ventilation direction flexibility is improved, but device complexity increases

Engineering Contradiction:
Improveventilation direction flexibilityVSAvoidnozzle arrangement
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system segments the direction control function from the nozzle structure itself, placing it instead in a separate controllable ventilation device. This allows multiple nozzles to be arranged side by side for flexibility without each nozzle requiring complex internal mechanisms.

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

Enables flexible and efficient adjustment of ventilation direction and airflow patterns, including straight and diagonal flows, with the ability to produce swing airflow by alternating airflow directions, all while maintaining a simplified nozzle design.

Implementation Method 1

The ventilation device is arranged above the nozzle unit and is configured to blow air from a first end toward a second end of the nozzle unit in the first direction

Methodology Applied
Scientific EffectAirflow:

Implementation Method 2

The ventilation port is configured to allow air sent into the housing to be blown out of the housing through the ventilation port

Methodology Applied
Scientific EffectPressure-driven flow:

Data Source

PatentUS20260063325A1Ventilation system
Publication Date: 2026.03.05 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
  • US20260063325A1 patent drawing
  • US20260063325A1 patent drawing
  • US20260063325A1 patent drawing

AI summary

In a ventilation system, a nozzle unit includes at least two nozzles. The at least two nozzles each include a housing having a hollow elongated shape extending in alignment with a first direction. The at least two nozzles are arranged side by side in alignment with a second direction intersecting the first direction. A ventilation device is arranged above the nozzle unit and is configured to blow air from a first end toward a second end of the nozzle unit in the first direction. A control device is configured to control the ventilation device. The housing of each of the at least two nozzles has a lower surface having a ventilation port extending in alignment with the first direction. The ventilation port is configured to allow air sent into the housing to be blown out of the housing through the ventilation port.