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Filtering noise reduction assembly, cooling module comprising the same and portable electronic apparatus

A technology for electronic devices and heat dissipation modules, applied in the direction of electrical digital data processing, digital data processing components, instruments, etc., can solve problems such as inconvenient operation, reduced efficiency of heat dissipation modules, and influence on air circulation

Inactive Publication Date: 2015-05-13
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the airflow introduced by the fan is often accompanied by dust. When the dust accumulates in the heat dissipation module, it will affect the air circulation and reduce the performance of the heat dissipation module.
The heat dissipation module of the existing portable electronic device will be equipped with a plastic filter, but it cannot overcome the problem of dust entering the heat dissipation module. To improve the heat dissipation efficiency by removing the deposited dust, it is necessary to disassemble the heat dissipation module and there is a need for operation. the inconvenience
In addition, the plastic filter will also cause noise problems

Method used

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  • Filtering noise reduction assembly, cooling module comprising the same and portable electronic apparatus
  • Filtering noise reduction assembly, cooling module comprising the same and portable electronic apparatus
  • Filtering noise reduction assembly, cooling module comprising the same and portable electronic apparatus

Examples

Experimental program
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Embodiment 1

[0033] Embodiment 1 is that the unit weight is 30g / m 2 Polyester non-woven fabric (purchased from Megamay International Development Co., Ltd., Taiwan), and a polycarbonate (polycarbonate) screen (average pore size 180um, thickness 0.2mm) were used as a comparative example. The test method of the pore size is to wet the above-mentioned sample with Galwick (surface tension 15.9Dynes / cm) and place it in the test chamber of a capillary flow analyzer (purchased from Porous Materials Inc. (PMI), the United States), and seal it. The test chamber, and nitrogen is drained to the back of the sample. When the gas can overcome the capillary phenomenon of the pore size of the sample, the liquid in the hole is replaced by the gas and bubbles are generated. When the pressure increases until the liquid in all the holes is dry, the sample can be obtained. According to the pore size distribution curve, the average pore size of the non-woven fabric and the comparative example sieve is judged acc...

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PUM

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Abstract

The invention relates to a filtering noise reduction assembly, a cooling module comprising the same and a portable electronic apparatus. The cooling module of the portable electronic apparatus comprises an active cooling assembly, a passive cooling assembly and a filtering noise reduction assembly, wherein the active cooling assembly comprises an air outlet and an air inlet; the passive cooling assembly is arranged near the air outlet of the active cooling assembly; and the filtering noise reduction assembly is arranged corresponding to the air inlet of the active cooling assembly and is non-woven fabric of which the average aperture is less than 40<mu>m to filter airflow which enters the active cooling assembly and lower noise by at least two 2dBA.

Description

technical field [0001] The present application relates to a filter and noise reduction assembly, including a heat dissipation module and an electronic apparatus of the filter and noise reduction assembly, especially a filter and noise reduction assembly applied to a portable electronic apparatus, including The heat dissipation module of the filter and noise reduction component and the portable electronic device with the heat dissipation module. Background technique [0002] When a portable electronic apparatus (portable electronic apparatus) such as a portable computer or an ultra-thin notebook computer is in use, its central processing unit (Central Processing Unit, CPU) and other components generate heat due to operation, so Notebook computers and ultra-thin notebook computers are equipped with a cooling module, which includes a radiator and a fan. The radiator takes away the heat generated by the CPU from the CPU, and the fan introduces the airflow outside the portable el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/20
CPCG06F1/203
Inventor 田佩蔡兴隆王昭渊刘静怡廖美勤
Owner 3M INNOVATIVE PROPERTIES CO
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