GB2262660A - Power distribution arrangement - Google Patents

Power distribution arrangement Download PDF

Info

Publication number
GB2262660A
GB2262660A GB9223965A GB9223965A GB2262660A GB 2262660 A GB2262660 A GB 2262660A GB 9223965 A GB9223965 A GB 9223965A GB 9223965 A GB9223965 A GB 9223965A GB 2262660 A GB2262660 A GB 2262660A
Authority
GB
United Kingdom
Prior art keywords
circuit board
partition
power distribution
printed circuit
motherboard
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9223965A
Other versions
GB9223965D0 (en
GB2262660B (en
Inventor
Avtar Singh Chana
Sidney Burton
Morten Hattessen
John Vernon Panter
Mark Stephen Andrews
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Services Ltd
Original Assignee
Fujitsu Services Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Services Ltd filed Critical Fujitsu Services Ltd
Publication of GB9223965D0 publication Critical patent/GB9223965D0/en
Publication of GB2262660A publication Critical patent/GB2262660A/en
Application granted granted Critical
Publication of GB2262660B publication Critical patent/GB2262660B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0263—High current adaptations, e.g. printed high current conductors or using auxiliary non-printed means; Fine and coarse circuit patterns on one circuit board
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/04—Assemblies of printed circuits
    • H05K2201/044—Details of backplane or midplane for mounting orthogonal PCBs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/10272—Busbars, i.e. thick metal bars mounted on the printed circuit board [PCB] as high-current conductors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/10295—Metallic connector elements partly mounted in a hole of the PCB

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Combinations Of Printed Boards (AREA)

Abstract

In a power distribution arrangement in a printed circuit board assembly (1) wiring congestion around the assembly is reduced by removing the necessity to route cables from an external power supply to a bus bar (10) on top of the circuit boards (2) of the assembly. Conductive rods (17) extend from conductors of the bus bar (10) through a partition (6) of the circuit assembly to form terminals (19) on an outer face of the assembly to which the power cables (16) are connected. <IMAGE>

Description

POWER DISTRIBUTION ARRANGEMENT Background to the Invention The present invention relates to a power distribution arrangements for electronic apparatus.
Electronic apparatus, such as computer equipment, normally requires to be supplied with power at one or more voltage levels. This can be achieved by the provision of a separate power supply unit supplying power through cables connected, for example, to bus bars mounted on a printed circuit board. The cables are of necessity bulky because of the heavy currents they are required to carry and accommodating these cables together with other wiring associated with the assembly is sometimes difficult.
An object of the present invention is to provide an improved power distribution arrangement in an electronic apparatus which overcomes this problem.
Summary of the Invention According to the invention there is provided electronic apparatus comprising: (a) a cabinet having at least one internal partition; (b) a printed circuit board mounted within the cabinet in a plane substantially parallel to said partition (c) a power distribution bus mounted on said printed circuit board, for distributing power to components on said printed circuit board, (d) a plurality of conductive rods extending from the power distribution bus and through the portion, and (e) power supply means disposed on the opposite side of the partition to the circuit board and electrically connected to said conductive rods, for supplying power by way of said rods to the power distribution bus.
Brief Description of the Drawings An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings in which: Fig 1 shows a printed circuit board assembly, forming part of an electronic apparatus, and Fig 2 is a view of a printed circuit board forming part of the assembly.
Description of an embodiment of the Invention Referring to the drawings, an electronic apparatus 1 comprises a motherboard 2, a power distribution board 3, and an input/output board 4. The motherboard carries a plurality of daughter boards 5 (only one shown), mounted at right angles to the motherboard. In order to preserve clarity, and as they do not form part of the invention, the components and printed wiring on the circuit boards have been omitted from the drawings. The circuit board assembly 1 is housed in a cabinet having a metal partition 6. The motherboard 2 and the power distribution board 3 are mounted on opposite sides of the partition 6 in spaced relationship therewith by spacers (not shown).
Edge connectors 7 mounted on the input/output board 4 contain rows of contacts which engage corresponding contact areas 9 on the circuit boards 2 and 3 to electrically interconnect the three circuit boards 2, 3, and 4. Further edge connectors 7 mounted on the motherboard 2 engage similar contact areas on the daughter boards 5 to provide interconnections between the boards 2 and 5.
A bus bar 10 is mounted on one face of the motherboard 2 and is of a laminated structure comprising three separate conductors insulated from one another. Each of the separate conductors has an extended lug 11 containing an aperture 12. Further lugs 13 extending from the bus bar conductors provide voltage supply connections from the bus bar to appropriate points of the circuitry on the motherboard 2. The lugs 13 are electrically connected to the circuitry by conductive rivets 14. The rivets pass through spacers 15 interposed between the lugs 13 and the surface of the motherboard 2. Thus the spacers in conjunction with the rivets serve to support the bus bar in spaced relationship to the surface of the motherboard.
Three power cables 16 (only one shown), one carrying +5 volts, one carrying +12 volts and the third being grounded, are electrically connected one to each of the lugs 11 by respective threaded conductive rods 17. The rods 17 extend through the power distribution board 3, the partition 6 and the apertures 12 in the lugs 11. As the partition 6 is formed from conductive material, it will be realised that the rods 17 must pass through the partition without contacting it. This may be accomplished, for example, by providing the rods 17 with insulating sleeves 18, or simply by providing clearance holes in the partition. Each of the power cables 16 has a connector which is secured to one end of each rod 17 by nuts 19. Further nuts 20 secure the other end of each of the rods 17 to the lugs 11 on the bus bar conductors. The rods 17 are manufactured from a material having good electrical conductivity, such as for example, brass and it will be understood that their cross sectional area must be sufficient to carry the required currents.
It will be realised that by providing direct connections from the distribution board 3 to the bus bar 10 on the motherboard 2, power supply cables are no longer required to be routed around the partition 6 between the circuit boards 2, 3 of the assembly, thereby relieving the wiring congestion.

Claims (4)

1. Electronic apparatus comprising: (a) a cabinet having at least one internal partition; (b) a printed circuit board mounted within the cabinet in a plane substantially parallel to said partition (c) a power distribution bus mounted on said printed circuit board, for distributing power to components on said printed circuit board, (d) a plurality of conductive rods extending from the power distribution bus and through the portion, and (e) power supply means disposed on the opposite side of the partition to the circuit board and electrically connected to said conductive rods, for supplying power by way of said rods to the power distribution bus.
2. Apparatus according to Claim 1 wherein the power supply means comprises a power distribution printed circuit board mounted within the cabinet in a plane substantially parallel to said partition.
3. Apparatus according to Claim 1 wherein said printed circuit board is a motherboard, carrying a plurality of daughter boards mounted at right angles to the motherboard on the side of the motherboard remote from the partition.
4. Electronic apparatus substantially as hereinbefore described with reference to the accompanying drawings.
GB9223965A 1991-12-20 1992-11-16 Power distribution arrangement Expired - Fee Related GB2262660B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919127027A GB9127027D0 (en) 1991-12-20 1991-12-20 Power distribution arrangement

Publications (3)

Publication Number Publication Date
GB9223965D0 GB9223965D0 (en) 1993-01-06
GB2262660A true GB2262660A (en) 1993-06-23
GB2262660B GB2262660B (en) 1995-03-29

Family

ID=10706562

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919127027A Pending GB9127027D0 (en) 1991-12-20 1991-12-20 Power distribution arrangement
GB9223965A Expired - Fee Related GB2262660B (en) 1991-12-20 1992-11-16 Power distribution arrangement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919127027A Pending GB9127027D0 (en) 1991-12-20 1991-12-20 Power distribution arrangement

Country Status (3)

Country Link
AU (1) AU657824B2 (en)
GB (2) GB9127027D0 (en)
ZA (1) ZA929594B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110972394B (en) * 2019-12-31 2021-03-23 中科可控信息产业有限公司 Circuit board structure and electronic equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1449369A (en) * 1973-03-29 1976-09-15 Telemecanique Electrique Circuit connections for electronic or electrical automation systems
EP0185773A1 (en) * 1984-06-18 1986-07-02 Fanuc Ltd. Control board for ac motors
EP0221809A1 (en) * 1985-10-16 1987-05-13 Thomson-Csf Hybrid circuit and method for producing such a circuit
GB2187335A (en) * 1986-02-21 1987-09-03 Alps Electric Co Ltd RF modulators
GB2251730A (en) * 1991-01-09 1992-07-15 Plessey Telecomm Orthogonal interconnection of printed circuit boards

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1449369A (en) * 1973-03-29 1976-09-15 Telemecanique Electrique Circuit connections for electronic or electrical automation systems
EP0185773A1 (en) * 1984-06-18 1986-07-02 Fanuc Ltd. Control board for ac motors
EP0221809A1 (en) * 1985-10-16 1987-05-13 Thomson-Csf Hybrid circuit and method for producing such a circuit
GB2187335A (en) * 1986-02-21 1987-09-03 Alps Electric Co Ltd RF modulators
GB2251730A (en) * 1991-01-09 1992-07-15 Plessey Telecomm Orthogonal interconnection of printed circuit boards

Also Published As

Publication number Publication date
AU3021592A (en) 1993-06-24
ZA929594B (en) 1993-06-10
GB9223965D0 (en) 1993-01-06
GB2262660B (en) 1995-03-29
AU657824B2 (en) 1995-03-23
GB9127027D0 (en) 1992-02-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031116