Mechanism for inserting or removing I/O cards with internal connectors

• US 5,967,824 A
• Filed: 02/11/1998
• Issued: 10/19/1999
• Est. Priority Date: 02/11/1998
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Scott, Walter D., Taylor, James R., Neal, Danny M., Ramirez, Ciro N.
• Primary Examiner(s): NGUYEN, KHIEM M
• Application Number:
  US09/021,743
• Time in Patent Office: 615 Days
• Field of Search: 439/64, 439/157, 439/159, 439/160, 439/342, 439/377, 439/629, 439/247, 439/248
• US Class Current: 439/342
• CPC Class Codes: G06F 1/184 Mounting of motherboards
• CPC Class Codes: G06F 1/185 Mounting of expansion boards
• CPC Class Codes: G06F 1/186 Securing of expansion boards in correspondence to slots provided at the computer enclosure
• CPC Class Codes: G06K 13/0806 using an arrangement for ejection of an inserted card
• CPC Class Codes: H01R 12/7005 Guiding, mounting, polarizing or locking means; Extractors for printed circuit boards H05K
• CPC Class Codes: H05K 7/1404 by edge clamping, e.g. wedges

Abstract

A board-handling mechanism for more easily installing and removing boards from motherboards and/or other mountings within system enclosures does not require the removal of the enclosure. The mechanism provides leverage to positively seat and unseat circuit boards mounted into system connectors on the motherboard or other locations within system enclosures. A cable loop connector is provided within the enclosure opposite the opening for engaging the I/O connector on the forward edge of the daughterboard. The cable loop connector is biased to an upper position so that the daughterboard will first seat in the cable loop connector before being lowered and engaged to the motherboard connector.

Claims

1. An electrical apparatus for housing a circuit board having a first connector on a base edge and a second connector which is perpendicular to the first connector, comprising in combination:

an enclosure having a base and an opening which is perpendicular to the base;

a motherboard connector mounted in the enclosure and facing in a direction substantially normal to the base, the motherboard connector engaging the first connector when the circuit board is moved toward the base;

a docking connector mounted in the enclosure and being movable between disengaged and engaged positions, the docking connector engaging the second connector when the circuit board is inserted through the opening of the enclosure, and the docking connector moving toward the base as the circuit board is moved into engagement with the motherboard connector; and

a bias member for biasing the docking connector to the disengaged position.

2. The electrical apparatus of claim 1 wherein the bias member comprises a spring.

3. The electrical apparatus of claim 1, further comprising a removable guidance device mounted in the enclosure for guiding and aligning the first connector into engagement with the motherboard connector and the second connector into engagement with the docking connector.

4. The electrical apparatus of claim 1 wherein the docking connector and the motherboard connector are multi-pin electrical connectors.

5. The electrical apparatus of claim 1 wherein the docking connector faces the opening in the enclosure.

6. The electrical apparatus of claim 1, further comprising a track stationarily mounted in the enclosure normal to the base;

and wherein

the docking connector is slidably carried by the track between the disengaged and engaged positions.

7. An electrical apparatus for housing a circuit board having a first connector on a base edge and a second connector which is perpendicular to the first connector, comprising in combination:

an enclosure having a base and an opening which is perpendicular to the base;

a multi-pin electrical motherboard connector mounted in the enclosure and facing in a direction parallel to and away from the base, the motherboard connector engaging the first connector when the circuit board is moved toward the base;

a multi-pin electrical docking connector mounted in the enclosure and facing toward the opening in the enclosure, the docking connector being movable between disengaged and engaged positions and engaging the second connector when the circuit board is inserted through the opening of the enclosure, and the docking connector moving toward the base as the circuit board is moved into engagement with the motherboard connector;

a bias member for biasing the docking connector to the disengaged position;

a removable guidance device mounted in the enclosure for guiding and aligning the first connector into engagement with the motherboard connector and the second connector into engagement with the docking connector;

a track stationarily mounted in the enclosure normal to the base; and

wherein

the docking connector is slidably carried by the track between the disengaged and engaged positions.

8. The electrical apparatus of claim 7 wherein the bias member comprises a spring.

9. The electrical apparatus of claim 7 wherein the track limits movement of the docking connector to a direction which is normal to the base.

10. The electrical connector of claim 7 wherein the guidance device has a support card to which the circuit board is mounted.

11. A method for mounting a circuit board inside an enclosure of an electrical system, the circuit board having a first connector on a base edge and a second connector which is perpendicular to the first connector, the enclosure having a base and an opening which is perpendicular to the base, comprising:

(a) providing a motherboard connector and a docking connector each of which is mounted within the enclosure, the docking connector facing the opening and being biased to a disengaged position, and the motherboard connector facing away from the base;

(b) inserting the circuit board through the opening of the enclosure until the second connector engages the docking connector;

(c) moving the circuit board toward the base so that the first connector engages the motherboard connector while the docking connector moves from the disengaged position toward the base to an engaged position.

12. The method of claim 11 wherein the circuit board may be removed from the enclosure by reversing steps (b) and (c).

13. The method of claim 11, further comprising guiding and aligning the first connector of the circuit board into engagement with the motherboard connector and the second connector of the circuit board into engagement with the docking connector with a removable guidance device.