1. Technical Field
The present disclosure relates to housings of portable electronic devices.
2. Description of Related Art
Portable electronic devices, such as mobile phones, personal digital assistants (PDAs), and laptop computers are widely used. Most of these portable electronic devices include a housing to protect electronic elements therein.
A typical housing is usually made of thin light-weight plastic, thus, structural strength of the housing is weak. To reinforce the housing, during the manufacturing process, a metal piece may be molded into the plastic. However, because plastic and metal cool and harden at different speeds during the molding process, a tight bond does not form between the plastic and the metal of the housing.
Therefore, there is a room for improvement within the art.
Many aspects of a housing can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, the emphasis instead being placed upon clearly illustrating the housing. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
The present housing may be used for electronic devices, such as mobile phones and so on.
The molded part 10 can be made of a resin material selected from a group consisting of polypropylene (PP), polyamide (PA), polycarbonate (PC), polyethylene terephthalate (PET), and polymethylmethacrylate (PMMA), etc. The molded part 10 includes two edges opposite to each other. Each of the edges include a plurality of ribs 12 and protrusions 14 spaced from each other and uniformly staggered.
Referring to
The ribs 12 are inserted in each notch 28, and the protrusions 14 are respectively inserted into the through holes 26 to improve the bonding strength between the molded part 10 and the insert 20. Thus, the insert 20 is secured to the molded part 10, thereby increasing structural strength of the housing 100.
An exemplary embodiment of a method for making the housing 100 may include the following steps:
An insert 20 is provided. The insert 20 includes a plurality of tabs 24 spaced from each other. A latching notch 28 is defined between each pair of adjacent tabs 24.
An injection molding machine is provided. The resin material can be injected into a mold of the injection molding machine to form the molded part 10. The resin material is selected from a group consisting of polypropylene (PP), polyamide (PA), polycarbonate (PC), polyethylene terephthalate (PET), and polymethylmethacrylate (PMMA), etc.
The insert 20 is placed in the injection molding machine. Then, the resin material is injected into the mold to form the molded part 10. The molded part 10 is therefore integrally formed with the insert 20. The molded part 10 includes the spaced-apart ribs 12. A tab 24 is respectively disposed between each pair of adjacent ribs 12.
The molded part 10 is integrally formed with the insert 20, and the protrusions 14 are respectively inserted into the through hole 26 to improve bonding strength and increase contact area between the molded part 10 and the insert 20. Thus, the insert 20 is secured to the molded part 10 and the structural strength of the housing 100 is improved.
It is to be understood, however, that even through numerous characteristics and advantages of the present disclosure have been set forth in the foregoing description, together with details of the structure and function of the disclosure, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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200910305743.9 | Aug 2009 | CN | national |