Patent Application
20050239310
The following description relates to connectors and in particular to connector interfaces.
Many electronics equipment includes circuit cards. Often the circuit cards are designed to be inserted into a chassis, shelf or other equipment. The circuit cards typically include connectors for connection to the housing or other equipment within the housing or connected to the housing, such as a backplane. With the variation in card sizes and tolerances, it is often difficult to align connectors on the cards with associated connectors on a backplane or adapter card. In particular, when the card includes more than one connector to be aligned. This results in poor connection, lack of connection, or on-site modifications to the connectors either on the backplane, adapter card, or the circuit card. On-site modifications can lead to additional problems, such as loose connections to the cards, damage to other circuitry on the card, and modified cards that are non-standard.
There is a need for flexibility between the connectors on the card and associated connectors on the backplane or other equipment.
In one embodiment, an apparatus includes, a first edge having a cutout adjacently located between a pair of counter bore panels and a connector assembly. The connector assembly includes a connector having a mounting flange including a pair of inserts, a pair of spacer bushings sized to be received by the pair of counter bore panels and a pair of guide pins. The pair of inserts are adapted to receive and secure the pair of guide pins via the pair of counter bore panels. The mounting flange is adapted to abut a rear face of the first edge such that the connector extends through the cutout and the pair of inserts align with the pair of counter bore panels. The cutout and the pair of counter bore panels are slightly oversized for the connector and respective guide pins such that once the pair of guide pins is received by the pair of inserts, the connector floats within a space defined by the cutout and pair of counter bore panels and the connector and pair of guide pins, respectively.
In another embodiment a backplane includes a rear panel including one or more cutouts, each cutout adjacently located between a pair of counter bore panels, a connector having a mounting flange, wherein the mounting flange includes a pair of threaded inserts and a pair of guide pins, each guide pin having one threaded end. The mounting flange is adapted to abut the rear panel such that the connector extends through the cutout and the threaded inserts align with the pair of counter bore panels. The threaded inserts are adapted to receive and secure the pair of guide pins via the pair of counter-bore panels. The cutout and the pair of counter bore panels are slightly oversized for the connector and respective guide pins such that once the pair of guide pins is received by the pair of threaded inserts, the connector floats within a tolerance defined by the oversize of the cutout and pair of counter bore panels in relation to the connector and pair of guide pins.
The details of one or more embodiments of the claimed invention are set forth in the accompanying drawings and the description below. Other features and advantages will become apparent from the description, the drawings, and the claims.
Embodiments of the present invention provide systems and methods of a floating connector. The floating connector allows for variations in tolerance.
On a surface of second edge 140 there is a cutout 110 adapted to receive a connector such as coaxial connector 125 and interface with flange 103 of connector 125. Cutout 110 is sized for the particular connector and meets required tolerance standards. Cutout 110 is adjacent to first and second counter-bore panels 104-1 and 104-2. Counter-bore panels 104-1 and 104-2 are each adapted to receive and secure spacer bushings 108-1 and 108-2, respectively. In one embodiment, counter-bore panels 104-1 and 104-2 are adapted to receive spacer bushings 108-1 and 108-2, respectively.
Flange 103 of connector 125 abuts the back surface of edge 140 and threaded inserts 106-1 and 106-2 align with counter bore-panels 108-1 and 108-2, respectively. Spacer bushings 108-1 and 108-2 are adapted to interface with guide pins 112-1 and 112-2. In one embodiment, threaded inserts 106-1 and 106-2 are each internally threaded to receive and secure guide pins 112-1 and 112-2, respectively. In this embodiment, guide pins 112-1 and 112-2 are partially externally threaded. In other embodiments, threaded inserts 106-1 and 106-2 are adapted to receive and secure guide pins 112-1 and 112-2, respectively, using a snap in or lock in feature, or another means of receiving and securing. For example, in one embodiment, guide pins 112 include a groove that engages with an edge or lip of inserts 106-1 and 106-2. The receiving and securing feature is not meant to be limiting in nature.
In operation, once connector 125 is connected to angle bracket 102 via guide pins 112-1 and 112-2 spacer bushings 108-1 and 108-2 the assembled connector “floats” within the tolerance of oversized cutout 110 and counter-bore panels 104-1 and 104-2. Oversized cutout 110 is oversized in relation to the size of connector 123. An example of an assembled connector is connector 133. Once assembled, connector 125 is able to move in any direction along the plane created by edge 140 within a defined tolerance of oversized cutout 110 and counter-bore panels 104. The defined tolerance is constrained by the size of cutout 110 in relation to connector 125 and the dimensions of counter bore panels 104-1 and 104-2 with respect to spacer bushings 108-1 and 108-2, respectively.
In one embodiment, mating connectors as discussed below with respect to
It is understood that although apparatus 100 is shown as an angle bracket 102 having a first edge 130 and a second edge 140 that are at right angles to each other, apparatus 100 can be a single piece of material without an angle edge or have multiple edges at any angle to one another. In other embodiments, apparatus 100 comprises openings such as opening 110 in any piece of material or equipment. E.g. a side of housing, a mounting panel, a backplane adapted to receive multiple connectors or the like. In one embodiment, connectors 125 and 133 are mounted on a backplane.
In one embodiment circuit board 240 is a printed circuit board and is adapted to mate with floating connectors 225 and 233 via mating connectors 245-1 and 245-2, respectively. In this embodiment, mating connectors 245-1 and 245-2 are mounted on circuit board 240 and each connector 245-1 and 245-2 includes a pair of receptacles 270-1 and 270-2 that are adapted to receive guide pins 212-1 and 212-2, respectively. Guide pins 212-1 and 212-2 are physically attached to connector 225 and once assembled onto angle bracket 202 assembled connector 225 floats within oversized cutout 210. Assembled connector 225's ability to float within oversized cutout 210 enables connector 225 to be easily mated with mating connector 245-1. Guide pins 212-1 and 212-2 align with receptacles 245-1 and 245-2, respectively and once aligned receptacles 245-1 and 245-2 receive guide pins 212-1 and 212-2. As a result connectors 225 and 245-1 are then properly aligned for mating.
The use of guide pins and receptacles that are integrated with respective connectors significantly aids in the ease of connection between mating connectors. Further the ability for connectors 225 and 233 to float along a plane defined by edge 240, of angle bracket 202, further aids in the ease of mating connectors 225, 233 with 245-1 and 245-2, respectively. For example connectors 245-1 and 245-2 may be aligned at the largest tolerated distance between the connectors and mating connectors 225 and 233 are capable of adjusting to the proper spacing. In this instance connector 225 would shift upward along edge 240 and connector would shift downward along edge 240. In another embodiment, connector 225 may be aligned without shifting in any direction but connector 245 shifts along edge 240 as required.
It is understood that in other embodiments mating connectors such as mating connectors 245-1 and 245-2 may be mounted on electronic equipment or devices, interfaces or the like.
It will be appreciated by those skilled in the art, with the benefit of the present description, that the apparatus can include one or more floating connector assemblies. The description has been simplified to better understand the present invention. In addition, the present invention can be implemented in any equipment employing connectors.
A number of embodiments of the invention defined by the following claims have been described. Nevertheless, it will be understood that various modifications to the described embodiments may be made without departing from the spirit and scope of the claimed invention. Accordingly, other embodiments are within the scope of the following claims.
