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Circuit Board Floating Retention System

IP.com Disclosure Number: IPCOM000021500D
Publication Date: 2004-Jan-21
Document File: 3 page(s) / 90K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method that uses a floating retention system to lock a circuit board perpendicular to the plane of the board's mounting surface. Benefits include allowing for radial float in the board position.

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Circuit Board Floating Retention System

Disclosed is a method that uses a floating retention system to lock a circuit board perpendicular to the plane of the board’s mounting surface. Benefits include allowing for radial float in the board position.

Background

The current state of the art incorporates expanding standoffs and pins to lock the circuit board, but lacks the mount and necked standoffs that allow for radial float.

General Description

The disclosed method consists of a base, an expanding standoff, and push pins (see Figure 1). The base may have multiple features to accommodate several standoffs. The standoffs are inserted into the base and moved into position to provide a one piece base unit. The base is attached to the mounting surface, and the board is set into position with the standoffs protruding through holes in the board; the pins are pressed into the standoffs, locking the board in place.

The support is pre-assembled in the following sequence:

1.      The standoff is inserted into the large hole in the base.

2.      The base of the standoff comes in contact with the top of the recess in the base. The standoff slides along a narrowing slot into the final position, where the neck allows for +/- 0.5mm radial float.

3.      The pins are temporally inserted into the standoffs.

At assembly of the board, the support is attached to the mounting surface and the pins are removed. The board to be mounted is then positioned with the standoffs protruding through holes in the board,...