1. Technical Field
The present disclosure relates to all-in-one computers, and more particularly to an all-in-one computer with splash protection capability.
2. Description of Related Art
A point of sale (POS) computer is an example of an all-in-one computer in the service industry. POS computers are commonly used in restaurants and so are at risk of having food and beverage spilled on them. Therefore, splash protection is required for the POS computer to be used in such environments. Unfortunately, venting of the computer is needed to dissipate heat and makes it difficult to keep liquid from getting into the computer.
Referring to
The front enclosure 10 includes a rectangular frame (not labeled) defining an opening (not shown), and a liquid crystal panel (not shown) mounted to the frame covering the opening.
Referring to
It is noted that the computer 8 is airtight except for through the air intakes 37 and the air outlet 35.
The computer 8 may be used in a restaurant or the like, where beverages may be splashed or spilled on or around the computer 8 by accident. In practice, because the front enclosure 10 usually faces a user, it has the greatest chance of getting wet, the top and the left and right sides of the computer 8 has less chance, and the back of the computer 8 has little chance to be splashed or spilled on.
Seams where various components, such as the liquid crystal panel and the frame of the front enclosure 10, of the computer 8 meet are sealed according to known technology and so are considered water-proof in this embodiment and not described in detail.
If the liquid is splashed to the top of the computer 8, the liquid will flow down along the rear piece 31 and the side pieces 33 of the rear enclosure 30. When the liquid flows to the air outlet 35 of the rear piece 31, because the width of each slot 350 of the air outlet 35 is small enough, taken 1.5 mm as an example of the width, surface tension of the liquid will postpone the liquid to flow into the computer 8 through the slots 350, until the liquid vaporizes. In addition, heated air is blown to outside the computer 8 through the slots 350 of the air outlet 35, which provides additional airflow and heat to vaporize liquids, and therefore it is even more difficult for the liquid to flow into the computer 8 through the slots 350. When the liquid flows to the air intakes 37 of the side pieces 33, because the bottom wall 371 bounding each hole 370 is slanted down outwards for a big enough angle, taken 40 degrees as an example of the angle, the liquid will be guided to flow outside the holes 370, avoiding flowing inwards, and because each hole 370 is slanted down towards the front enclosure 10, the liquid will be guided along each hole 370 to flow towards the front enclosure 10 and meet together to fast flow down to leave the computer 8.
Furthermore, in practice, people are conditioned to lean back the display for not more than 15 degrees when using a computer. Therefore, in order to avoid the liquid flow from the air intakes 37 to the rear piece 31 to increase burden of splash protection for the air outlet 33, each hole 370 of the air intakes 37 should be slanted down towards the front enclosure 10 for a big enough angle for the avoidance, in other words, the angle should be at least for 15 degrees.
If the liquid is splashed to the left or right side of the computer 8, the situation is similar to that the liquid is splashed to the top of the computer 8, so repeat no more here.
The computer 8 of the present disclosure has passed the test of IPX2, and therefore the computer 8 suits the splash protection requirement in a restaurant or the like environment. It is noted that, the “IP” in “IPX2” points to a standard of splash protection capability, and the “X2” points to one of the splash protection levels of the standard.
In other embodiments, the width of each slot 350 of the air outlet 35 may not be 1.5 mm, and may be another value, e.g., between 1 mm and 2 mm. Furthermore, the slots 350 of the air outlet 35 may be replaced by round holes each having a diameter between 1 mm and 2 mm.
In other embodiments, the slanting angle of the bottom wall 371 bounding each hole 370 of the air intakes 37 may not be 40 degrees, and may be another angle more than 30 degrees which ensures the splash protection capability of the air intakes 37, especially when the liquid is splashed to the left or right side of the computer 8.
It is to be understood, however, that even though numerous characteristics and advantages of the disclosure have been set forth in the foregoing description, together with details of the structure and function of the invention, 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 invention 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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200910304864.1 | Jul 2009 | CN | national |