1. Technical Field
The disclosure relates to methods for manufacturing casings adapted for electronic devices, and more particularly, to a method for manufacturing a heat insulating casing of an electronic device.
2. Description of Related Art
In many electronic devices such as portable electronic devices, the casing of the electronic device is easily handled by users. However, during operation of many electronic devices, heat is generated by heat generating electronic components inside the casing and then transferred to the casing. This may make users uncomfortable. Therefore, a heat insulation layer is usually provided on an inner side of the casing to avoid overheating of the casing.
A conventional casing employs sponge or rubber as the material of the heat insulation layer. However, sponge and rubber have the following disadvantages. Firstly, the typical insulation effect of sponge and rubber is not good, at least in some applications. Secondly, sponge and rubber easily deteriorate under high temperatures. Thirdly, the insulation effect of sponge and rubber decreases significantly in unfavorable ambient environment conditions. Fourthly, sponge and rubber provide sufficient insulation effect only when the layer has a large thickness. That is, sponge and rubber are not suitable for miniaturized electronic devices.
What is needed, therefore, is a method for manufacturing a casing which can overcome the limitations described.
Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the views, and all the views are schematic.
Referring to
The cover 10 is a thin plate, and includes a top surface 11.
The aerogel layer 20 is a sheet, and located on the top surface 11 of the cover 10. In this embodiment, the aerogel layer 20 is directly attached on the top surface 11 of the cover 10. Alternatively, the aerogel layer 20 is placed on another device or structure, and then the other device or structure is placed on the top surface 11 of the cover 10.
The cover 10 with the aerogel layer 20 thereon has the following advantages:
Firstly, the insulation effect of the aerogel layer 20 is good, even if a thickness of the aerogel layer 20 is relatively small.
Secondly, the aerogel layer 20 resists deterioration under high temperatures.
Thirdly, the aerogel layer 20 is waterproof, and the insulation effect of the aerogel layer 20 remains substantially the same even in unfavorable ambient environment conditions.
Fourthly, the density of the aerogel layer 20 is low, so the aerogel layer 20 is light.
The casing 1 described above can be manufactured by the following steps:
Referring to
Referring to
Aerogel solution is filled into the room 40 via the guiding groove 33, and then the aerogel solution filled in the room 40 is dried. In this embodiment, the aerogel solution filled in the room 40 is dried by a carbon dioxide supercritical drying method, which method ensures that the dried aerogel has a three-dimensional porous structure.
The mold 30 is removed from the cover 10 after the aerogel solution is dried completely. Thus the aerogel layer 20 is obtained, with the aerogel layer 20 being firmly attached to the top surface 11 of the cover 10.
It is understood that the size and shape of the aerogel layer 20 can be adjusted according to actual conditions, by changing the size and shape of the room 40.
In the method for manufacturing the casing 1 described above, the room 40 contains the unformed aerogel solution ready for the subsequent drying process. This enables the aerogel material to be easily shaped as desired.
It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages, the examples hereinbefore described merely being illustrative embodiments.
Number | Date | Country | Kind |
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101130340 | Aug 2012 | TW | national |