Intelligent household mute central control machine case

A smart home and central control technology, which is applied in the screening of casings, cooling/ventilation/heating transformation, electrical components, etc., can solve problems such as rising equipment costs, loud noise, and dust entering the casing, so as to enhance system stability and reduce Noise, the effect of good electromagnetic shielding performance

Pending Publication Date: 2018-05-04
朱明君
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing box structure can meet the conventional functional requirements, but there are two problems. One is that it will generate a lot of noise, which will affect the good experience of smart home; the other is that dust will enter the inside of the box, and it will accumulate after a long time. The more, if not cleaned in time, it may cause a short circuit and affect the normal operation of the equipment
The noise problem can only be solved by choosing a fan with better performance, but this will increase the cost of the equipment
[0004] In addition, the existing box structure cannot meet the electromagnetic shielding function

Method used

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  • Intelligent household mute central control machine case
  • Intelligent household mute central control machine case
  • Intelligent household mute central control machine case

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In this embodiment, the electromagnetic shielding material layer is based on a composite wave-absorbing material. The composite wave-absorbing material is based on epoxy resin, and is filled with thermally expandable graphene, carbon fiber, carbonyl iron powder, and nickel-copper ferrite composite nanomaterials. It is prepared by vacuum defoaming and stirring method, and the filler is evenly distributed in the base.

[0030] In the composite wave-absorbing material, heat-expandable graphene and carbon fiber are conductive fillers with contents of 2wt% and 7wt% respectively; carbonyl iron powder and nickel-copper ferrite composite nanomaterials are magnetic fillers with contents of 4wt% and 11wt% respectively .

[0031] The preparation steps of the composite absorbing material are as follows:

[0032] a) Preparation of thermally expandable graphene: prepare graphene oxide, then place the powdered graphene oxide in a stainless steel box, place the stainless steel box in ...

Embodiment 2

[0038] On the basis of embodiment 1, the difference is:

[0039] The carbon fiber has a length of 800 μm and a diameter of 50 μm.

Embodiment 3

[0041] On the basis of embodiment 1, the difference is:

[0042] The carbonyl iron powder was spherical with a particle diameter of 40 μm.

[0043] Preferably, the following table shows the reflection loss of the composite absorbing material obtained in the above embodiment in the 2-20 GHz frequency band:

[0044]

[0045] It can be seen from the above table that compared with Example 2 and Example 3, in the case of changing the size of carbon fiber and carbonyl iron powder, the wave-absorbing performance of the composite wave-absorbing material drops seriously. In Example 1, the composite wave-absorbing material The wave material has good wave-absorbing performance for electromagnetic waves in the 2-20GHz frequency band, with a maximum absorption of 33.6dB, and the consistency of wave absorption in this frequency band is good, with an average absorption of 29.8dB, which has achieved unexpected results. The performance of the multi-component composite absorbing mate...

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Abstract

The invention relates to an intelligent household mute central control machine case. The intelligent household mute central control machine case includes an upper-layer case cover, a middle-layer control mainboard and a lower-layer case bottom; the upper-layer case cover, the middle-layer control mainboard and the lower-layer case bottom are all provided with matched installation holes, a core processor is arranged on the control mainboard, the upper-layer machine case is internally provided with a boss matched with the core processor, the boss is provided with a heat-radiating bulge arrangedin a large area, and the heat-radiating bulge is tightly attached to the core processor. The inner surfaces of the upper-layer case cover and the lower-layer case bottom are covered with electromagnetic shielding material layers.

Description

technical field [0001] The invention relates to the technical field of smart home, in particular to a silent central control box for smart home. Background technique [0002] In the smart home, the central control chassis is very important, in addition to the aesthetic requirements, there are also functional requirements. The chassis must first have a good electromagnetic shielding effect, and it must also be able to dissipate heat well. [0003] The functional requirements of heat dissipation are generally solved by adding a heat dissipation fan. There are generally two cooling fans: one on the core processor and one on the chassis. The core processor fan is responsible for moving the processor heat away from the surface of the processor and into the environment inside the case, while the case fan is responsible for taking the heat of the internal environment out of the case. The existing box structure can meet the conventional functional requirements, but there are two ...

Claims

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Application Information

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IPC IPC(8): H05K7/20H05K9/00
CPCH05K9/0007H05K7/20436
Inventor 朱明君
Owner 朱明君
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