Personal computer processor card interconnect system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H05K-007/10
H01R-013/629
H01R-023/70
출원번호
US-0425669
(1989-10-23)
발명자
/ 주소
Anzelone Thomas A. (Ft. Lauderdale FL) Cheung Samuel T. (Boca Raton FL) Cohen Mark E. (Boca Raton FL) Cooke Kevin K. (Delray Beach FL) Dewitt John R. (Boca Raton FL) Miller Michael S. (Delray Beach F
출원인 / 주소
International Business Machines Corp. (Armonk NY 02)
인용정보
피인용 횟수 :
45인용 특허 :
0
초록▼
A personal computer system unit has a planar card upon which is mounted a processor card. The processor has mounted thereon those components, except for system memory, which are most likely to be replaced for a system upgrade. The processor card has a printed circuit board with printed circuits ther
A personal computer system unit has a planar card upon which is mounted a processor card. The processor has mounted thereon those components, except for system memory, which are most likely to be replaced for a system upgrade. The processor card has a printed circuit board with printed circuits thereon that terminate along one edge at contacts. Two aligned edge connectors are mounted on the planar board. One connector has a key which engages a slot on the edge of the processor card to align the many contacts with contact arms. Two levers are mounted on the card and cooperate with frame elements to insert, extract and latch the processor card. Each element also has a guide to align the processor card for insertion into the edge connectors.
대표청구항▼
A personal computer system unit comprising: a frame; a planar board mounted on said frame, a processor card assembly removably mounted on said planar board; said planar board comprising a first printed circuit board (PCB) having a plurality of first components mounted thereon and first circuit means
A personal computer system unit comprising: a frame; a planar board mounted on said frame, a processor card assembly removably mounted on said planar board; said planar board comprising a first printed circuit board (PCB) having a plurality of first components mounted thereon and first circuit means electrically interconnecting said first components; said first components comprising a main memory for storing programs and data, I/O connector means adapted to be connected to I/O devices, and I/O controllers for controlling transference of information to and form said I/O devices; said first circuit means comprising an I/O bus and a memory bus; said first component means further comprising electrical edge connector means connected to said I/O bus, said memory bus, and said processor card assembly, said edge connector means comprising a multiplicity of springlike contact arms arranged in two opposing rows, said contact arms in each row being biased towards the arms in the other row, said contact arms in each row being longitudinally evenly spaced along such row; said processor card assembly comprising a second PCB having a plurality of second components mounted thereon and second circuit means interconnecting said second components; said second components comprising a microprocessor, a memory controller, a read-only memory storing operating system routines, error checking means, a bus controller and a direct memory access controller; said second PCB having a straight edge extending into an opening defined by said two opposing rows of contact arms, said second PCB further comprising a multiplicity of surface contacts located along and adjacent to said edge on opposite sides of said second PCB, said surface contacts being evenly space along said edge in correspondence with the spacing of said contact arms and being electrically engaged with a different one of said contact arms with a normal force due to the bias of said contact arms so as to establish effective electrical contact therebetween, said surface contacts being connected to and forming part of said second circuit means whereby said first and second circuit means are interconnected through said contacts and said contact arms, said second PCB being frictionally held in place by a total frictional force developed between all of said surface contacts and contact arms; first and second pivot pins mounted on said second PCB at opposite corners thereof away from said edge; first and second fulcrums mounted on said frame adjacent to said processor card assembly; and elongated first and second levers pivotally mounted on said second PCB for rotation about said pivot pins on axes that extend through said levers at points intermediate to the ends thereof, each axis being closer to one end of its lever mounted than to the other end creating two moment arms in each lever with one arm being shorter that the other arm, said one ends of said first and second levers being respectively engaged with said first and second fulcrums, said one ends each having a pair of angularly joined jaws straddling said fulcrums and providing first and second surfaces, said first surfaces being engaged with said fulcrum means to present movement of said processor card assembly in one direction except upon rotation of said levers, said second surfaces being engageable with said fulcrums upon rotation of said levers to extract said processor card assembly from said edge connector means. A processor card assembly for use in a personal computer system unit having a frame and tow frame elements mounted on the frame for facilitating installation and removal of the processor card assembly; a planar board mounted on the frame, the planar board including a planar board printed circuit board (PCB) having a plurality of planar board components mounted thereon and planar board circuit means electrically interconnecting the planar board components; the planar board components including a main memory for storing programs and data, I/O connector means adapted to be connected to I/O devices, and I/O controller for controlling transference of information to and from the I/O devices; the planar board circuits means comprising a channel bus and a memory bus; the planar board component means further including electrical edge connector means connected to the channel bus and the memory bus, the edge connector means including a multiplicity of springlike contact arms arranged in two opposing rows separated by a gap of predetermined width, contact arms in each row being biased towards the arms in the other row, contact arms in each row being longitudinally evenly spaced along such row; the processor card assembly comprising: a flat rectangular processor card PCB having a thickness greater than the width of the gap, said processor card PCB having a plurality of processor card components mounted thereon, said plurality of processor card components consisting of a microprocessor, a memory controller, a direct access memory controller, a read only memory, a bus controller and error checking means, said processor card PCB further comprising processor card circuit means interconnecting said processor card assembly components, said processor card PCB having a straight bevelled edge and a multiplicity of surface contacts on both sides of said processor card PCB adjacent to said beveled edge, said contacts being longitudinally evenly spaced along said edge for engagement with the contact arms; and first and second actuators pivotally mounted on opposite corners of said processor card PCB away from said edge, each of said actuators being a class-two lever having a handle at one end and outwardly opening jaws at the other end, said actuators being manually rotatable between first and second positions, said jaws being adapted to engage the frame elements and move said processor card assembly; into engagement with the edge connectors upon rotation of said levers from said second positions to said first positions, and to extract said processor from engagement with the edge connectors upon engagement of said jaws with the frame elements and movement of said actuators from said second positions to said first positions.
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