Projector Cooling via Segmented Wireless Module Flow Paths

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Solution Overview

Problem

Existing projectors face inefficiencies in cooling their wireless communication apparatuses, leading to insufficient heat dissipation, which can be exacerbated by increasing fan size or speed, resulting in larger devices, higher power consumption, and increased noise.

Innovation Solution

A projector design that incorporates a cooling system with a first flow path formed by the inner surface of the wireless communication apparatus and a second flow path formed by a different surface, allowing for efficient cooling gas flow between introduction and discharge ports, and utilizing a common fan to cool both the wireless communication apparatus and a second heat dissipation member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the size of the cooling fan is increased to improve cooling effect, then the cooling ability is improved, but the size of the exterior housing increases

Engineering Contradiction:

Improvecooling abilityVSAvoidsize of exterior housing

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The flow path is segmented into multiple sections that utilize different surfaces of the wireless communication apparatus. The first flow path uses a first surface and the second flow path uses a second surface, allowing the cooling gas to flow along multiple surfaces of the apparatus rather than requiring a larger fan to cool the entire surface area

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cooling gas flow is extended into the third dimension by having it flow along the inner surface of the first wall and then along the first and second surfaces of the wireless communication apparatus. This multi-dimensional flow path increases cooling effectiveness without requiring a proportionally larger fan

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If the rotational speed of the cooling fan is increased to improve cooling effect, then the cooling ability is improved, but power consumption increases

Engineering Contradiction:

Improvecooling abilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The flow path is divided into a first flow path and a second flow path that utilize different surfaces of the wireless communication apparatus. This segmentation allows the cooling gas to flow along multiple surfaces, increasing cooling effectiveness without requiring the fan to rotate at higher speeds

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cooling gas flows continuously along the inner surface of the first wall and then along the first and second surfaces of the wireless communication apparatus in a continuous flow path. This continuous action maximizes cooling efficiency without requiring increased fan speed

Inventive Principle:

Principle #20Continuity of useful action

3Reliability

If the rotational speed of the cooling fan is increased to improve cooling effect, then the cooling ability is improved, but noise increases

Engineering Contradiction:

Improvecooling abilityVSAvoidnoise

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The flow path is segmented into multiple sections utilizing different surfaces of the wireless communication apparatus. This segmentation allows the cooling gas to flow along multiple surfaces, increasing cooling effectiveness without requiring higher fan speeds that would generate more noise

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cooling gas flows continuously along the inner surface of the first wall and then along the first and second surfaces of the wireless communication apparatus. This continuous flow path maximizes cooling efficiency at lower fan speeds, thereby reducing noise generation

Inventive Principle:

Principle #20Continuity of useful action

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 enhances cooling efficiency, reduces projector size, minimizes power consumption and noise, and allows for effective heat dissipation without the need for separate cooling fans, thereby addressing the inefficiencies in existing projector cooling systems.

Implementation Method 1

The cooling gas sent from a cooling fan flows through the flow path. The cooling gas thus flows along the aforementioned one outer surface of the wireless communication apparatus to cool the wireless communication apparatus.

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS20240402583A1projector

Publication Date: 2024.12.05 SEIKO EPSON CORP

AI summary

A projector includes an exterior housing having a first wall, an introduction port via which outside air is introduced as a cooling gas into the exterior housing, and a discharge port via which the cooling gas is discharged, a first cooling target disposed at the inner surface of the first wall, a cooling fan including an intake portion that sucks the cooling gas and a sending portion that sends the sucked cooling gas, a first flow path that cause the cooling gas to flow between the introduction port and the intake portion, and a second flow path that cause the cooling gas to flow between the sending portion and the discharge port. The first flow path is formed by a first surface of the first cooling target, and the second flow path is formed by a second surface different from the first surface in the first cooling target.