Card connector with a servomechanical device for repositioning an expansion card
View Patent ↗A card connector having a housing with a receiving slot and connector pins are provided. An expansion card having docking well regions, contact pads, and backup contact pads is inserted in the receiving slot. The connector pins are connected to the docking well regions on the expansion card. The expansion card is coupled to a servomechanical device that can slide the expansion card to connect the connector pins with the contact pads. Connector pins and contact pads are coated with an interface material that is subject to wearing. Worn interface material can cause weak electrical connections between connector pins and contact pads. Thus, a card connector with a servomechanical device is provided to slide an expansion card within a receiving slot of the card connector for an improved electrical connection between connector pins and contact pads.
1. An apparatus comprising:
a card connector having a housing with a receiving slot;
a connector pin disposed in the receiving slot;
an expansion card having a first contact area and a second contact area, wherein the expansion card is coupled to the card connector; and
a servomechanical device that is coupled to the expansion card, wherein the servomechanical device is configured to move the expansion card in the receiving slot such that a connector pin connection is changed from the first contact area to the second contact area;
wherein:
the servomechanical device comprises a support plate, a plate latch, a screw mechanism, an internally threaded cylindrical housing, a body, and a ratcheting-arm;
the plate latch is utilized to secure the expansion card to the support plate; and
the screw mechanism, the internally threaded cylindrical housing, and the ratcheting-arm are utilized to raise or lower the support plate.
2. The apparatus of claim 1 , wherein the card connector and the servomechanical device are connected to a motherboard, the motherboard is connected to a power supply, and the motherboard provides electrical power from the power supply to the card connector and the servomechanical device.
3. The apparatus of claim 1 , wherein:
the housing comprises sidewall latches that secure the expansion card in the receiving slot; and
the sidewall latches move in a dimension parallel to the receiving slot to allow the servomechanical device to slide the expansion card in the dimension parallel to the receiving slot.
4. The apparatus of claim 1 , wherein:
the servomechanical device is coupled to card hardware;
the card hardware includes metal wiring that connects the servomechanical device to a motherboard;
the motherboard is connected to a power supply that provides electrical power to the motherboard;
the card hardware, through the metal wiring, provides electrical power from the motherboard to the servomechanical device; and
the card hardware is secured to a computer chassis by system enclosure latches.
5. The apparatus of claim 1 , wherein the servomechanical device is in the card connector.
6. The apparatus of claim 1 , wherein the first contact area is a docking well region and the second contact area is a contact pad.
7. The apparatus of claim 1 , wherein:
the first contact area is a contact pad and the second contact area is a backup contact pad;
the contact pad and the backup contact pad are copper with an interface material formed on the copper; and
the interface material includes gold and nickel.
8. The apparatus of claim 1 , wherein:
the first contact area is a docking well region that includes a layer of nickel, and a trailing edge that is sloped to facilitate sliding of the expansion card;
the second contact area is a contact pad that is copper with an interface material formed on the copper; and
the interface material includes gold and nickel.
9. The apparatus of claim 1 , wherein the servomechanical device slides the expansion card in the receiving slot, parallel to sidewalls of the receiving slot, based on a set of triggering events stored in computer memory on an electronic storage device.
10. The apparatus of claim 9 , wherein the set of triggering events includes computer power-up, evaluation of card performance, and expiration of time that represents the average useful life of the interface material.
11. The apparatus of claim 1 , wherein the servomechanical device is utilized to slide the expansion card from a first position where the connector pin is in contact with a docking well region, to a second position where the connector pin makes an electrical connection to a contact pad.
12. The apparatus of claim 1 , wherein the servomechanical device is utilized to slide the expansion card from a first position where the connector pin is electrically connected to a contact pad, to a second position where the connector pin is electrically connected to a backup contact pad.
13. The apparatus of claim 1 , wherein:
the connector pin is copper and has contact regions that are coated with an interface material; and
the interface material includes gold and nickel.