Charging Pile Housing Airflow Path for Quiet Cooling

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Solution Overview

Problem

Existing DC charging piles face issues with noise disturbance and poor heat dissipation, with simple sound insulation methods providing inadequate noise reduction and complex structures failing to effectively manage heat.

Innovation Solution

The design incorporates a housing with an air inlet and outlet that directs airflow to reflect noise multiple times between internal surfaces, combined with a centrifugal fan and sound insulation cotton to attenuate noise and enhance heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If sound insulation cotton is simply arranged on a side wall, then noise reduction is attempted, but the noise reduction effect is not obvious

Engineering Contradiction:
Improvenoise disturbanceVSAvoidnoise reduction effect
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The housing is divided into multiple surfaces (first side-surface, second side-surface, third side-surface, fourth side-surface) that work together to reflect noise. The air flow path is segmented to pass through multiple surfaces, creating multiple reflection points that collectively reduce noise propagation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Air flow acts as an intermediary medium that carries noise from the charging module through the housing surfaces. By controlling the air flow path to interact with multiple surfaces, the system uses the air flow itself as a mediator to achieve noise reduction through repeated reflections.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If a complex internal structure is designed for noise reduction, then noise reduction capability is improved, but heat dissipation effect becomes relatively poor

Engineering Contradiction:
Improvenoise disturbanceVSAvoidheat dissipation
Core Design Contradiction:
Object-affected harmful factorsVSTemperature

Solution Approach 1:

The housing surfaces serve multiple functions: they reflect noise to reduce noise propagation and simultaneously guide air flow to ensure effective heat dissipation. The air flow path is designed to pass through areas that maximize both noise reflection and heat carry-away, making the same structural elements serve dual purposes.

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

Solution Approach 2:

The noise reduction is achieved not by adding complex internal structures in one dimension, but by utilizing the spatial arrangement of multiple surfaces and the three-dimensional air flow path. The solution moves from thinking about noise reduction as a localized problem to a spatial, multi-surface problem that naturally integrates with heat dissipation requirements.

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

This configuration significantly reduces noise propagation and improves heat dissipation by creating a circulation path that weakens noise intensity and facilitates efficient air flow for cooling.

Implementation Method 1

directs airflow to reflect noise multiple times between internal surfaces

Methodology Applied
Scientific EffectNoise reflection: Reflection

Implementation Method 2

sound insulation cotton to attenuate noise

Methodology Applied
Scientific EffectAcoustic absorption: Acoustic Absorption

Implementation Method 3

centrifugal fan

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 4

creating a circulation path that facilitates efficient air flow for cooling

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS20240075836A1Charging Pile
Publication Date: 2024.03.07 SHENZHEN WINLINE TECH
  • US20240075836A1 patent drawing
  • US20240075836A1 patent drawing
  • US20240075836A1 patent drawing

AI summary

A charging pile is provided and includes a housing and a charging module; the housing defines an accommodating cavity, the housing defines an air inlet and an air outlet, the charging module is accommodated in the accommodating cavity, the charging module has a first side-surface and a second side-surface opposite to the first side-surface, and a third side-surface and a fourth side-surface opposite to the third side-surface, the air inlet is located at one side of the first side-surface away from the second side-surface, the air outlet is located at one side of the second side-surface away from the first side-surface, air enters the accommodating cavity through the air inlet, flows to the third side-surface along the first side-surface to flow into the charging module, flows out of the charging module from the fourth side-surface to the second side-surface, and flows out of the accommodating cavity through the air outlet.