Electrical connectors – Miscellaneous
Reexamination Certificate
2000-06-09
2001-04-10
Patel, Tulsidas (Department: 2839)
Electrical connectors
Miscellaneous
C361S695000, C439S061000
Reexamination Certificate
active
06213819
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a fan rack for computer, and more particularly to a detachable fan rack that enables the user to replace the fan without cutting power supply from the computer.
A computer has a fan rack holding at least one fan for dissipation of heat. The power circuit of each fan is welded to the power circuit of the computer to obtain the necessary working voltage from the computer. In case one fan fails, the power circuit of the computer must be turned off so that the failed fan can be disconnected from the fan rack for a repair work or replacement without causing damage to the internal circuit of the computer. However, a big loss may occur when cutting off power supply from a computer been used in an industrial or financial place to run a control or to provide a service.
SUMMARY OF THE INVENTION
It is the main object of the present invention to provide a fan rack for computer, which enables the user to replace the fan (or fans) without cutting off power supply from the computer in which the fan rack is installed. According to the present invention, the fan rack comprises a mounting frame, and a fan holder. The mounting frame comprises a receiving opening, a plurality of hook holes, a plug hole, a locating notch and a plug hole spaced around the center opening. The fan holder is mounted on the mounting frame to hold a fan in the center opening on the mounting frame, comprising a holder base and a locking plate. The holder base comprises bottom mounting legs respectively hooked in the hook holes on the mounting frame, a plug mount holding an electric plug, a clamping plate clamped on the retaining portion at the mounting frame, a hook at one side, and a positioning member positioned in the locating notch on the mounting frame. The locking plate is coupled to the holder base at one side and turned between a first position where the locking plate is engaged into the plug hole on the mounting frame and hooked up with the hook at the holder base to lock the fan holder, and a second position where the locking plate is disengaged from the plug hole and the hook for enabling the fan holder to be disconnected from the mounting frame.
REFERENCES:
patent: 5136468 (1992-08-01), Wong et al.
patent: 5337464 (1994-08-01), Steffes
patent: 5562410 (1996-10-01), Sachs et al.
patent: 5636103 (1997-06-01), Buschner
patent: 5788467 (1999-10-01), Zenitani et al.
patent: 5854736 (1998-12-01), Bowler
patent: 5973921 (1999-10-01), Lin
Dougherty & Troxell
Enlight Corporation
Patel Tulsidas
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