CN2508283Y - Stable power supply and reinforced grounding circuit sub-board and circuit board structure - Google Patents
Stable power supply and reinforced grounding circuit sub-board and circuit board structure Download PDFInfo
- Publication number
- CN2508283Y CN2508283Y CN 01264319 CN01264319U CN2508283Y CN 2508283 Y CN2508283 Y CN 2508283Y CN 01264319 CN01264319 CN 01264319 CN 01264319 U CN01264319 U CN 01264319U CN 2508283 Y CN2508283 Y CN 2508283Y
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- China
- Prior art keywords
- board
- hole
- circuit
- ground
- daughter board
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- Expired - Lifetime
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Abstract
The utility model relates to a circuit daughter board for stabilizing the power supply and strengthening the earthing, and a circuit board structure, which utilizes a double layer printing circuit daughter board with a large-area power plane and a grounding plane to cover a main board signal line with deficient earthing and to connect with the power supply of the main board signal line with deficient earthing, to reach the purpose of stabilizing the power supply and strengthening the earthing and to prevent the signal line from disturbing, and the stability and the reliability of the signal line are improved.
Description
Technical field
The utility model relates to a kind of mainboard of computer system, but and particularly relevant for a kind of computer motherboard structure of burning voltage power supply.
Background technology
Along with the semiconductor scientific-technical progress, the progress of the central processing unit of computing machine (CPU) arithmetic capability is at a tremendous pace, also therefore the dominant frequency the during personal computer operation also by improve up till now hundreds of MHz of in the past severals MHz (MHz), all the other peripheral hardwares keep up with especially, even do high efficiency processing on the dominant frequency of identical speed again with central processing unit, and its volume and part are more and more accurate.
Lower in tradition than the computer main frequency frequency of low speed, more can not influence the correctness of received signal because imperfect earth or voltage supply with unstable, or make integrated circuit operation undesired, but dominant frequency now has been that framework is in 133MHz or above high speed dominant frequency, and the intensive needs in pin position of integrated circuit utilize the method for through hole that signal wire is guided to the 4th layer from ground floor, make ground plane and bus plane in the middle of the mainboard can't keep fully big plane, for first signals layer and the 4th signals layer, the environment difference of power supply supply or contact area causes the received signal instability.
Summary of the invention
The purpose of this utility model provides the circuit daughter board of a kind of stabilized power source and enhanced grounding; it is not enough and influence the stability of signal transmission that the guard signal line can not supplied with shakiness or ground connection because of power supply; and can prevent external Electromagnetic Interference, guarantee the correctness and the stability of signal.
The utility model provides the circuit daughter board and the board structure of circuit of a kind of stabilized power source and enhanced grounding, it need not increase the area of mainboard and the effect that volume just can reach stabilized power source and enhanced grounding, make ground floor identical as far as possible, and keep cost budgeting cheaply with the 4th layer of environment.
The utility model provides the circuit daughter board of a kind of stabilized power source and enhanced grounding, apply to computer system, computer system comprises mainboard, this mainboard comprises first power hole, first ground hole, first bus plane and first ground plane, the circuit daughter board comprises printed circuit board (PCB), this printed circuit board (PCB) comprises the second source layer and second ground plane, the second source layer has the second source hole, second ground plane has second ground hole, printed circuit board (PCB) for example is a double-layer circuit board, this printed circuit board (PCB) is used for voltage stabilizing and enhanced grounding, the second source layer is electrically connected to first power hole by the second source hole, to be connected to first bus plane of mainboard, and second ground hole be positioned on the printed circuit board (PCB), second ground plane is electrically connected to first ground hole by second ground hole, to be connected to first ground plane of mainboard, circuit daughter board essence is attached at mainboard, among the embodiment of the present utility model the pairing part position of mainboard hollowed out so that and the circuit daughter board be close to mainboard.And among the embodiment of the present utility model second ground plane than second source layer more near mainboard, but the second source layer of circuit daughter board is during near mainboard, still have the effect of stabilized power source and enhanced grounding, though it is effective near mainboard to be not so good as second ground plane, but still feasible.
According to embodiment of the present utility model; the circuit daughter board of aforementioned stable power supply and enhanced grounding; wherein circuit daughter board essence is attached at the structure of mainboard; be to connect with a plurality of guide pins to run through first power hole and second source hole; and connect and run through first ground hole and second ground hole; wherein computer system more comprises a chipset and memory module slot; the shape of circuit daughter board is that to be used to cover most of chipset online to the signal of memory module slot; because the 4th layer signal layer has had the electric connection of circuit daughter board and has pressed close to; large tracts of land ground connection and power supply have just been equaled; can be used for the stable of guard signal line, and prevent electromagnetic interference.
The utility model provides the board structure of circuit of a kind of stabilized power source and enhanced grounding, apply to computer system, board structure of circuit comprises mainboard, this mainboard comprises first printed circuit board (PCB), first bus plane and first ground plane and first power hole and first ground hole, first power hole is electrically connected to first bus plane, first ground hole is electrically connected to first ground plane, and circuit daughter board, this circuit daughter board is used for voltage stabilizing, for example printed circuit subboard is a double-layer circuit board, it comprises second printed circuit board (PCB), and have the second source layer and second ground plane, wherein the second source layer has the second source hole, second ground plane has second ground hole, be positioned on second printed circuit board (PCB), the second source layer is electrically connected to this first power hole by the second source hole, and second ground hole be positioned on second printed circuit board (PCB), second ground plane is electrically connected to first ground hole by second ground hole, the pairing part of mainboard address is hollowed out the circuit daughter board and essence is attached at this mainboard, and second ground plane than second source layer more near mainboard, but when the second source layer of circuit daughter board approaches mainboard, still have the effect of stabilized power source and enhanced grounding, though to approach mainboard effective not as second ground plane, but still feasible.
According to embodiment of the present utility model; the board structure of circuit of aforementioned stable power supply and enhanced grounding; wherein circuit daughter board essence is attached at the structure of mainboard with a plurality of guide pins; connect and run through first power hole and second source hole; and connect and run through first ground hole and second ground hole; wherein computer system more comprises a chipset and a memory module slot; it is online to the signal of memory module slot that the shape of circuit daughter board is used to cover most of this chipset; because the 4th layer signal layer has had the electric connection of circuit daughter board and has pressed close to; large tracts of land ground connection and power supply have just been equaled; can be used for the stable of guard signal line, and prevent electromagnetic interference.
Description of drawings
Fig. 1 is the bus plane of the circuit daughter board structure of the stabilized power source of the utility model one embodiment and enhanced grounding;
Fig. 2 is the ground plane of the circuit daughter board structure of the stabilized power source of embodiment of Fig. 1 and enhanced grounding;
Fig. 3 is the part position figure of the mainboard ground floor that share with the foregoing description;
Fig. 4 is the part position figure of the 4th layer of the mainboard of Fig. 3;
Fig. 5 is the section layout design drawing of the mainboard assembly face of Fig. 3;
Fig. 6 is the section layout design drawing at the mainboard back side of Fig. 3.
10,12,14,16,18,20,22,24,26,28: power hole
30,32,34,36,38,40,42,44: ground hole
46: the printed circuit subboard of stabilized power source and enhanced grounding
48: the bus plane of printed circuit subboard
50: the ground plane of printed circuit subboard
52: mainboard
54,56: the circuit daughter board placement location of stabilized power source and enhanced grounding
58,60,62,64,66,68: memory module slot
70: chipset
Embodiment
Fig. 1 to Fig. 6 is the various layout structure figure of the circuit daughter board structure of the stabilized power source of the utility model one embodiment and enhanced grounding and the mainboard that share, please be simultaneously referring to figs. 1 through Fig. 6, according to embodiment of the present utility model, the circuit daughter board 46 of stabilized power source and enhanced grounding applies to computer system, this computer system comprises mainboard 52, this mainboard 52 comprises first power hole 10,12,14,16,18, first ground hole 30,32,34,36, first bus plane and first ground plane, circuit daughter board 46 comprises printed circuit board (PCB), this printed circuit board (PCB) comprises the second source layer 48 and second ground plane 50, second source layer 48 has second source hole 20,22,24,26,28, second ground plane has second ground hole 38,40,42,44, for example printed circuit board (PCB) is a double-layer circuit board, printed circuit board (PCB) 46 is used for voltage stabilizing and enhanced grounding, second source layer 48 is by second source hole 20,22,24,26,28 are electrically connected to first power hole 10,12,14,16,18, to be connected to first bus plane of mainboard 52, and second ground hole 38,40,42,44, be positioned on the printed circuit board (PCB) 46, second ground plane 50 is by second ground hole 38,40,42,44 are electrically connected to first ground hole 30,32,34,36, to be connected to first ground plane of mainboard, circuit daughter board 46 with mainboard 52 pairing part positions hollow out be avoid with mainboard 52 on assembly electrically connect, also can not hollow out and make electrical component sexual isolation on circuit daughter board 46 and the mainboard 52 with for example insullac etc., be attached at mainboard 52 with essence, and second ground plane than second source layer more near mainboard 52, but when the second source layer 48 of circuit daughter board 46 approaches mainboard 52, still have the effect of stabilized power source and enhanced grounding, though it is effective than be attached at mainboard 52 near essence to be not so good as second ground plane 50, but still feasible.
In the present embodiment; wherein circuit daughter board 46 essence are attached at the structure of mainboard 52; connect with a plurality of guide pins and to run through first power hole 10; 12; 14; 16; 18 with second source hole 20; 22; 24; 26; 28; and connect and run through first ground hole 30; 32; 34; 36 and second ground hole 38; 40; 42; 44; this guide pin not only has and connects the function that runs through and can be as the fixing utensil of daughter board; wherein computer system more comprises a chipset 66 and memory module slot 58; 60; 62; 64; the shape of circuit daughter board 46 is used to cover most of chipset 70 to memory module slot 58; 60; 62; 64; 66; 68 signal is online; shown in number in the figure 54 and 56; because the 4th layer signal layer has had the electric connection of circuit daughter board 46 and has pressed close to; large tracts of land ground connection and power supply have just been equaled; can be used for the stable of guard signal line, and prevent electromagnetic interference.
According to embodiment of the present utility model, the board structure of circuit of stabilized power source and enhanced grounding, apply to computer system, board structure of circuit comprises mainboard 52, these main frame 52 plates comprise first printed circuit board (PCB), first bus plane and first ground plane and first power hole 10,12,14,16,18 and first ground hole 30,32,34,36, first power hole 10,12,14,16,18 are electrically connected to first bus plane, first ground hole 30,32,34,36 are electrically connected to first ground plane, and circuit daughter board 46 these circuit daughter boards 46 are used for voltage stabilizing, for example printed circuit subboard 46 is a double-layer circuit board, it comprises second printed circuit board (PCB), and have the second source layer 48 and second ground plane 50, wherein second source layer 48 has second source hole 20,22,24,26,28, second ground plane 50 has second ground hole 38,40,42,44, be positioned on second printed circuit board (PCB), second source layer 48 is by second source hole 20,22,24,26,28 are electrically connected to this first power hole 10,12,14,16,18, and second ground hole 38,40,42,44 are positioned on second printed circuit board (PCB), second ground plane 50 is by second ground hole 38,40,42,44 are electrically connected to first ground hole 30,32,34,36, circuit daughter board 46 with mainboard 52 pairing part addresses hollow out avoid with mainboard 52 on assembly electrically connect, also can not hollow out and make electrical component sexual isolation on circuit daughter board 46 and the mainboard 52 with for example insullac etc., and essence is attached at mainboard 52, and second ground plane 50 than second source layer 48 more near mainboard 52, but the second source layer 48 of circuit daughter board 46 is near real mainboard 52, still have the effect of stabilized power source and enhanced grounding, though it is effective near mainboard 52 to be not so good as second ground plane 50, but still feasible.
In the present embodiment; wherein to be attached at the structure of mainboard 52 be with a plurality of guide pins to circuit daughter board 46 essence; connect and run through first power hole 10; 12; 14; 16; 18 with second source hole 20; 22; 24; 26; 28; and connect and run through first ground hole 30; 32; 34; 36 and second ground hole 38; 40; 42; 44; this guide pin not only has and connects the function that runs through and can be as the fixing utensil of daughter board; wherein computer system more comprises a chipset 70 and a memory module slot 58; 60; 62; 64; 66; 68; the shape of circuit daughter board 46 is used for covering most of this chipset 70 to memory module slot 58; 60; 62; 64; 66; 68 signal is online; because the 4th layer signal layer has had the electric connection of circuit daughter board 46 and has pressed close to; large tracts of land ground connection and power supply have just been equaled; can be used for the stable of guard signal line, and prevent electromagnetic interference.
Claims (12)
1, the circuit daughter board of a kind of stabilized power source and enhanced grounding, apply to a computer system, this computer system comprises a motherboard, and this motherboard comprises one first power hole, one first ground hole, one first bus plane and one first ground plane, it is characterized in that this circuit daughter board comprises:
One voltage stabilizing printed circuit board (PCB) comprises a second source layer and one second ground plane;
One second source hole is positioned on this printed circuit board (PCB), and this second source layer is electrically connected to this first power hole by this second source hole, to be connected to this first bus plane of this motherboard: and
One second ground hole is positioned on this printed circuit board (PCB), and this second ground plane is electrically connected to this first ground hole by this second ground hole, to be connected to this first ground plane of this motherboard;
This circuit daughter board essence is attached at this motherboard.
2, circuit daughter board as claimed in claim 1, it is characterized in that, the structure that this circuit daughter board essence is attached at this motherboard is with a plurality of guide pins, connects to run through this first power hole and this second source hole, and connects and run through this first ground hole and this second ground hole.
3, circuit daughter board as claimed in claim 1 is characterized in that, this computer system operation is under 133MHz and above dominant frequency frequency.
4, circuit daughter board as claimed in claim 1 is characterized in that, this computer system more comprises a chipset and a memory module slot, and it is online to the signal of this memory module slot that the shape of this circuit daughter board is used to cover most of this chipset.
5, circuit daughter board as claimed in claim 1 is characterized in that, this printed circuit board (PCB) is the pair of lamina circuit board.
6, circuit daughter board as claimed in claim 1 is characterized in that, this second ground plane of this circuit daughter board than this second source layer more near this motherboard.
7, the board structure of circuit of a kind of stabilized power source and enhanced grounding applies to a computer system, it is characterized in that, this board structure of circuit comprises:
One motherboard, a circuit daughter board, described motherboard comprises:
One first printed circuit board (PCB) comprises one first bus plane and one first ground plane;
One first power hole is positioned on this first printed circuit board (PCB), is electrically connected to this first bus plane; And
One first ground hole is positioned on this first printed circuit board (PCB), is electrically connected to this first ground plane; And
Described circuit daughter board comprises:
One second printed circuit board (PCB) comprises a second source layer and one second ground plane;
One second source hole is positioned on this second printed circuit board (PCB), and this second source layer is electrically connected to this first power hole by this second source hole; And
One second ground hole is positioned on this second printed circuit board (PCB), and this second ground plane is electrically connected to this first ground hole by this second ground hole;
This circuit daughter board essence is attached at this motherboard.
8, board structure of circuit as claimed in claim 7, it is characterized in that, the structure that this circuit daughter board essence is attached at this motherboard connects and runs through this first power hole and this second source hole with a plurality of guide pins, and connects and run through this first ground hole and this second ground hole.
9, board structure of circuit as claimed in claim 7 is characterized in that, this computer system operation is under 133MHz and above dominant frequency frequency.
10, board structure of circuit as claimed in claim 7 is characterized in that, this computer system more comprises a chipset and a memory module slot, and it is online to the signal of this memory module slot that the shape of this circuit daughter board is used to cover most of this chipset.
11, board structure of circuit as claimed in claim 7 is characterized in that, this second printed circuit board (PCB) is the pair of lamina circuit board.
12, board structure of circuit as claimed in claim 7 is characterized in that, this of this combiner circuit second ground plane than this second source layer more near this motherboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01264319 CN2508283Y (en) | 2001-09-27 | 2001-09-27 | Stable power supply and reinforced grounding circuit sub-board and circuit board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01264319 CN2508283Y (en) | 2001-09-27 | 2001-09-27 | Stable power supply and reinforced grounding circuit sub-board and circuit board structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2508283Y true CN2508283Y (en) | 2002-08-28 |
Family
ID=33671648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01264319 Expired - Lifetime CN2508283Y (en) | 2001-09-27 | 2001-09-27 | Stable power supply and reinforced grounding circuit sub-board and circuit board structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2508283Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100531515C (en) * | 2005-07-22 | 2009-08-19 | 鸿富锦精密工业（深圳）有限公司 | Printing circuit board with modified power zone block |
-
2001
- 2001-09-27 CN CN 01264319 patent/CN2508283Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100531515C (en) * | 2005-07-22 | 2009-08-19 | 鸿富锦精密工业（深圳）有限公司 | Printing circuit board with modified power zone block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110927 Granted publication date: 20020828 |