Holding system for electronic modules

Details Holding system for electronic modules Holding system for electronic modules

1999-09-03

2000-10-10

Picard, Leo P.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

361686, 361683, 360 9801, 3123321, 3122232, 248685, 248200, H05K 500, H05K 700, H05K 502

Patent

active

06130817&

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates to a holding system for electronic modules, particularly for magnetic disk drives, the holding system having a withdrawable frame, which can be inserted into a drive bay of an electronic data processing device, such as a PC, or a peripheral unit, a and whose length corresponds to the depth of the drive bay.
2. Description of the Prior Art
Although electronic modules intended for insertion into a drive bay of a PC, for example, are standardized in their external dimensions to such an extent that they fit into a cross section of the drive bay, the length of the modules measured in the inserting direction can vary. There are, for example, drives which bear a plug with which they can be plugged directly onto the rear wall of the electronic data processing device, whereas other drives, provided for use in PCs, in particular with disks of the same diameter, bear plugs which are incompatible with the plugs on the rear wall of the device, and can therefore be connected indirectly to the electronic system of the device via a flexible conductor arrangement and a plug connected to the latter. As a result, the drives must be fastened at different sites in the withdrawable frame.
A mounting kit for mounting a floppy-disk drive in a holding bay intended for a relatively large electronic device has already been described in U.S. Pat. No. 5,596,484. The mounting kit has two mounting rails with a U-shaped cross-sectional profile. There rails are screwed tight to a U limb on both side walls of the floppy-disk drive. Provided for this purpose in the U limb adjacent to the side wall are fastening holes, through which fastening screws are screwed into the housing of the floppy-disk drive. Provided in the other U limb are enlarged cutouts, which permit the passage of the screw head. The U limb is also provided with threaded holes into which additional screws for fastening the floppy-disk drive in the holding bay are screwed. The mounting rails project rearward beyond the floppy-disk drive. Inserted in the projecting region between the mutually opposite U limbs of the two mounting rails is a printed circuit board which bears on the side facing the floppy-disk drive, a plug which is to be connected to the latter, and on the side parallel thereto a connecting plug to the holding bay.


SUMMARY OF THE INVENTION

It is an object of the invention to provide a holding system for electronic modules which facilitates simple mounting of different modules on a withdrawable frame and easy setting of an operating dimension, which is given by the distance between an insert plug, which is intended for connection to a rear wall of a data processing device, and an unlocking lever arranged on an opposite side of the withdrawable frame.
This object is achieved in accordance with the invention by a U-shaped bracket in whose U limbs are first holes for the passage of first fastening elements for fastening the bracket to lateral surfaces of the module, which are directed parallel to the inserting direction of the module, and second holes for the passage of second fastening elements for fastening the bracket to the withdrawable frame.
By comparison with the withdrawable frame, the bracket is a part which can be produced cost-effectively and easily. It is possible either to provide a number of such brackets adapted to the respective modules, or it is preferably possible to use a bracket having first fastening holes which correspond to the respective modules to be mounted. It is therefore unnecessary for the withdrawable frame itself to be adapted to the respective modules.
In a particularly preferred embodiment, which offers at least two different mounting positions for modules, the first holes are arranged asymmetrically with respect to the longitudinal bisector of the U limbs. If the bracket is mounted in one case such that its U cross-web points toward the rear wall of the device, and in another case is connected in the opposite position to the withdrawable frame,

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