CN107690255A - The copper bar and PCB hybrid power supplies method and electric power-feeding structure of a kind of server - Google Patents
The copper bar and PCB hybrid power supplies method and electric power-feeding structure of a kind of server Download PDFInfo
- Publication number
- CN107690255A CN107690255A CN201710749048.6A CN201710749048A CN107690255A CN 107690255 A CN107690255 A CN 107690255A CN 201710749048 A CN201710749048 A CN 201710749048A CN 107690255 A CN107690255 A CN 107690255A
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- Prior art keywords
- copper bar
- pcb
- electric current
- planes
- power supply
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 129
- 239000010949 copper Substances 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000013461 design Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000009510 drug design Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1485—Servers; Data center rooms, e.g. 19-inch computer racks
- H05K7/1488—Cabinets therefor, e.g. chassis or racks or mechanical interfaces between blades and support structures
- H05K7/1492—Cabinets therefor, e.g. chassis or racks or mechanical interfaces between blades and support structures having electrical distribution arrangements, e.g. power supply or data communications
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
Abstract
The invention discloses the copper bar of a server and PCB hybrid power supply methods, comprise the following steps：1) electric current that Power Management Design needs to pass through is assessed；2) signal and power supply of Design PCB；3) the voltage plane width on PCB is estimated；4) estimate the electric current that PCB can pass through and reserve allowance；5) electric current that estimation copper bar need to pass through；6) PCB equivalent resistance RPCB are simulated by simulation software, calculates copper bar equivalent resistance；7) copper bar is designed, makes copper bar equivalent resistance equal with the copper bar equivalent resistance numerical value calculated；8) copper bar and PCB are assembled.Electric power-feeding structure includes pcb board card, copper bar, and pcb board card is provided with PCB voltage planes, power vias, power input, power output end and copper bar connector, and the both ends of the copper bar are connected with copper bar connector.Increase copper bar on PCB, copper bar and PCB bus planes reach the purpose for transmitting power supply by copper bar on the basis of limited PCB voltage planes respectively by it to the electric current that should be able to be carried.
Description
Technical field
The present invention relates to the power supply technique field of server, more particularly to a kind of copper bar of server and PCB mixing to supply
Method for electrically and electric power-feeding structure.
Background technology
As internet, the fast development of big data, the arrival of cloud computing era, cloud computing center, large data center obtain
It is also more and more to the demand and use of server and storage with fast-developing and growth.Server and storage as cloud computing,
The support of data processing and the storage of big data, directly determine the stability of whole system.
As the increase of server and store function demand, its current design demand are also increasing.How limited
Design meets the high current of server and storage demand on space and PCB surface product, becomes to become increasingly complex and difficult.In order to have
Design meets the high current of server and storage demand on the space of limit and PCB surface product, and prior art Fang Zhongtong is often directly to exist
Enough bus planes, and reserved enough bus planes are designed on PCB, and estimates whether voltage plane can carry according to 40mil/A
Demand current amount, if can if do not change design, increase power supply aspect if voltage plane deficiency.But prior art
The shortcomings that following be present：
1. increase PCB laminations can increase design cost.
2. part is designed to PCB finite thickness system, more power laminates can not be increased, among these including part PCB without
Method meets the voltage plane of through-flow demand.
3.PCB is too thick to cause PCB to make difficulty, and the process capability that there is PCB layer number in most of pcb board factory in addition limits,
The increase lamination that can not be limited.
The content of the invention
For solving the above-mentioned problems of the prior art, it is an object of the present invention to provide a kind of copper bar of server and
PCB hybrid power supply methods；The present invention is when PCB power delivery can not meet power delivery demand, by increasing copper on PCB
Row and rational design copper bar parameter, make copper bar and PCB bus planes respectively by it to the electric current that should be able to carry, so as to reach
On the basis of limited PCB voltage planes, the purpose of power supply is transmitted by increasing copper bar.
The present invention also provides the copper bar and PCB hybrid power supply structures of a kind of server.
The present invention solve technical problem technical scheme be：
The copper bar and PCB hybrid power supply methods of a kind of server, comprise the following steps：
1) electric current that Power Management Design needs to pass through is assessed；
2) signal and power supply of Design PCB；
3) the voltage plane width on PCB is estimated；
4) according to step 3) and 40mil/A (mil/ampere), estimate the electric current that PCB can pass through and reserve allowance, it is determined that
PCB can not meet the voltage plane of through-flow demand；
5) electric current that the total current and step 4) PCB being required through according to step 1) can pass through, can not meet to wherein PCB
The voltage plane of through-flow demand is powered by increasing copper bar and estimates the electric current that copper bar need to pass through；
6) PCB equivalent resistance RPCB are simulated by simulation software, and according to the electric currents that can pass through of PCB in step 5) and copper
The electric current that need to pass through is arranged, calculates copper bar equivalent resistance；
7) copper bar is designed, makes copper bar equivalent resistance equal with the copper bar equivalent resistance numerical value calculated；
8) copper bar and PCB are assembled.
The PCB voltage planes of the step 3) use 12V voltage planes, and the area of 12V voltage planes is as far as possible big.
The copper bar equivalent resistance of the step 6) is 1.14RPCB (RPCB is PCB equivalent resistances).
The step 7) is realized copper bar design resistance and calculated by adjusting the thickness, width or material of copper bar
Copper bar equivalent resistance numerical value is equal.
A kind of PCB electric power-feeding structures of server, including pcb board card, copper bar, pcb board card are provided with power vias, copper bar
Power input, copper bar power output end and copper bar pad, copper bar interior of bond pads are provided with area of knockout, the input of the copper bar
End, output end are connected with pcb board respectively.
The PCB voltage planes use 12V voltage planes.
The aspect of the PCB carryings 12V electric currents includes 12V bus planes one and 12V bus planes two, 12V bus planes one, 12V
Bus plane two is all located at PCB internal layer, and every layer of power supply face thickness is 2oz, wherein the flood of 12V bus planes one laying 12V, 12V electricity
Active layer two is only laid this layer of center section.
Beneficial effects of the present invention：
1. the present invention is proposed in the case of PCB can not meet current-carrying, increase the design of current-carrying by increasing copper bar.
And separately design out rational PCB according to PCB and copper bar current capacity when copper bar designs and electricity is passed through by electric current and copper bar
Stream, it is therefore prevented that the PCB and unreasonable portion of electrical current that brings of copper bar CURRENT DISTRIBUTION is excessive, PCB or the even PCB failures of copper bar overheat are asked
Topic, solve the problems, such as that PCB can not meet copper bar and PCB electric current distribution designs in the case of current-carrying.
2. the present invention PCB and copper bar all in the presence of, rationally designed by electric current, calculate the electricity that PCB can be carried
Stream, calculates the electric current that copper bar is required through, and the PCB equivalent resistances gone out according to simulation calculation, has evaluated rational copper bar
Equivalent resistance, so that copper bar electric current and PCB electric current reasonable distributions, ensure safe to use and reliability.
3. by the estimation to copper bar resistance and rationally designing copper bar width and thickness, and contact impedance value is adjusted, designed
Go out the copper bar of one 1.14 times of RPCB equivalent resistances, so as to ensure the design mark of electric current that copper bar passes through without departing from copper bar
Standard, while the electric current by PCB is also ensure that without departing from the magnitude of current that PCB can be carried, the safety for improving power-supply service can
By property.
Brief description of the drawings
The structural representation of Fig. 1 PCB 12V bus planes one；
The structural representation of Fig. 2 PCB 12V bus planes two；
Fig. 3 is PCB construction schematic diagram；
Fig. 4 is structure of copper bar schematic diagram；
Fig. 5 is that the non-12V aspects of PCB isolate schematic diagram；
Fig. 6 is PCB TOP and BOT layer copper bar link position schematic diagrames.
Embodiment
For a better understanding of the present invention, embodiments of the present invention are explained in detail below in conjunction with the accompanying drawings.
Embodiment 1
The copper bar and PCB hybrid power supply methods of a kind of server, comprise the following steps：
1) electric current that Power Management Design needs to pass through is assessed；
2) Design PCB, wherein comprising the part such as signal and power supply, and increase the area of PCB 12V voltage planes as much as possible；
3) estimation PCB can pass through the voltage plane width of 12V electric currents；
4) according to step 3), 1oz copper is thick and 40mil/A, the electric current that estimation PCB can pass through simultaneously reserves allowance, determine PCB without
Method meets the voltage plane of through-flow demand；
5) electric current that the total current and step 4) PCB being required through according to step 1) can pass through, can not meet to wherein PCB
The voltage plane of through-flow demand is powered by increasing copper bar and estimates the electric current that copper bar need to pass through；
6) PCB equivalent resistance RPCB are simulated by simulation software, and calculates copper bar equivalent resistance；
7) copper bar is designed, makes copper bar design equivalent resistance equal with calculating copper bar equivalent resistance numerical value；
Wherein copper bar design equivalent resistance can be realized by adjusting the thickness, width or material of copper bar；
8) copper bar and PCB are assembled.
Embodiment 2
By taking 12V voltage planes as an example, the PCB voltage planes use 12V voltage planes.
With reference to a kind of PCB electric power-feeding structures of servers of Fig. 1 to Fig. 6, including pcb board card 4, copper bar 7, set on pcb board card 4
There are power vias 2, copper bar power input 1, copper bar power output end 5 and copper bar pad 6, the inside of copper bar pad 6, which is provided with, to be dug
Dummy section 3.By taking two pin therein as an example, the both ends of the copper bar 7 are that input 72, output end 71 pass through with pcb board respectively
Scolding tin etc. welds.Wherein output end 71 is 1 tie point, and input 72 is 2 tie points.Input 72 and PCB inputs 6 are right
Should be consistent.Welding manner is：Internal layer is 12V voltage planes, directly in welding；Internal layer is non-12V, reserved certain to hollow out sky
Between, prevent short circuit.Specifically, the aspect of PCB carryings 12V electric currents includes 12V bus planes one and 12V bus planes two, 12V power supplys
Layer one, 12V bus planes two are all located at PCB internal layer, and every layer of power supply face thickness is 2oz, and wherein the flood of 12V bus planes one is laid
12V, 12V bus plane two is only laid this layer of center section, and it can be 3.3V, 5V etc. that 12V bus planes two, which also have other voltage planes,
Non- 12V power supplys.TOP layers and BOT layers are reserved with welding copper bar pad, and for being welded and fixed copper bar, interior of bond pads is provided with and hollows out area
Domain, area of knockout are used to insert copper bar in pcb board, prevent disconnected layer short circuit.Wherein TOP and bot layers area of knockout is direct
Insert copper bar simultaneously to weld, the problem of in the absence of short circuit.
Embodiment 3
By taking 12V voltage planes as an example, with reference to Fig. 1 to Fig. 6, the copper bar and PCB hybrid power supply methods of server of the invention,
Comprise the following steps：
First, the electric current that Power Management Design needs to pass through is assessed, for example the design 12V power supplys need to pass through 60A electric current.Then
Plan, design PCB, comprising power supply and signal etc., and increase the area of PCB voltage planes as far as possible.
Pcb board card can only design 2 layers of 12V voltage planes to greatest extent, and each power supply face thickness is 2oz, PCB power supply bread
Contain：12V bus planes one and the two parts of 12V bus planes two, wherein 12V bus planes one and 12V bus planes two are only spread in center section
If other voltage planes are non-12V power supplys.
Calculate the electric current that 12V voltage planes can pass through in PCB.The design only has the portion of 12V bus planes one and 12V bus planes two
Subregion is designed with 12V, so only calculating the 12V in this two parts region.Calculate 12V bus planes one and 12V bus planes two
The method for the electric current that can pass through is：The neck region of this PCB design, such as Fig. 5 are found out, shown in Fig. 6, via anti-pad is removed and hollows out
Region, and voltage plane is added to obtain, can be 800mil by the voltage plane width of 12V electric currents, wherein TOP and bot layers hollow out
Region is inserted directly into copper bar and welded, and the problem of in the absence of short circuit, prevents disconnected layer short circuit.
In the case of 1oz, 40mil/A through-current capability, 800mil PCB (2oz copper is thick) can pass through 40A electric current.
By reasonably designing copper bar, the electric current of PCB and copper bar respectively by corresponding carrying can be made, but can be wrong in actual design
Difference, so needs pair can carry out a compromise by electric current, here, reserving 20% allowance to current design, then PCB can pass through
Electric current be 32A.So, the electric current that copper bar need to pass through is 28A, and after reserving 20% allowance, design copper bar need to carry 35A electricity
Stream.
In design process, PCB or copper bar are relevant with its equivalent resistance by how many electric current respectively, and inversely.This
Sample just needs the equivalent resistance of rational Design PCB and copper bar, to meet electric current transmission relation.Its method is described below：1. by
Understand above, after retaining allowance, copper bar need to need to pass through electric current 32A by electric current 28A, PCB.After the completion of 2.PCB designs, by imitative
True software emulation goes out its equivalent resistance RPCB.3. designing copper bar, its through-current capability need to be more than 35A, its equivalent resistance calculation
It is as follows：Because the electric current by PCB or copper bar is inversely proportional with equivalent resistance, so the equivalent resistance R1=(32/28) of copper bar
RPCB=1.14RPCB.Thus, you can complete a kind of design of copper bar and PCB hybrid power supply, this design can ensure copper bar and PCB
Respectively by its corresponding design current, PCB is avoided and the problem of copper bar passes through current-unbalance.
The present invention PCB and copper bar all in the presence of so that both pass through electric current reasonable in design.Pass through calculating
The electric current that PCB can be carried, the electric current that copper bar is required through is calculated, and PCB equivalent resistances are gone out according to simulation calculation, evaluate conjunction
The copper bar equivalent resistance of reason, so that copper bar electric current and PCB electric current reasonable distributions.Pass through the estimation and rational design to copper bar resistance
Copper bar width and thickness, contact impedance value is adjusted, the copper bar of 1.14RPCB equivalent resistance is designed, so as to ensure that copper
The design standard of the electric current that passes through without departing from copper bar is arranged, while also ensure that and can be carried without departing from PCB by PCB electric current
The magnitude of current, improve designed reliability.
Although above-mentioned the embodiment of invention is described with reference to accompanying drawing, not to the scope of the present invention
Limitation, on the basis of technical scheme, those skilled in the art need not pay creative work and can make
Various modifications or deformation still within protection scope of the present invention.
Claims (7)
1. the copper bar and PCB hybrid power supply methods of a kind of server, comprise the following steps：
1) electric current that Power Management Design needs to pass through is assessed；
2) signal and power supply of Design PCB；
3) the voltage plane width on PCB is estimated；
4) according to step 3) and 40mil/A, estimate the electric current that PCB can pass through and reserve allowance, determine that PCB can not meet through-flow need
The voltage plane asked；
5) electric current that the total current and step 4) PCB being required through according to step 1) can pass through, can not meet through-flow to wherein PCB
The voltage plane of demand is powered by increasing copper bar and estimates the electric current that copper bar need to pass through；
6) PCB equivalent resistance RPCB are simulated by simulation software, and needed according to the electric currents that can pass through of PCB in step 5) and copper bar
The electric current passed through, calculate copper bar equivalent resistance；
7) copper bar is designed, makes copper bar equivalent resistance equal with the copper bar equivalent resistance numerical value calculated；
8) copper bar and PCB are assembled.
2. the copper bar and PCB hybrid power supply methods of a kind of server as claimed in claim 1, it is characterized in that, the step
3) PCB voltage planes use 12V voltage planes, and the area of 12V voltage planes is as far as possible big.
3. the copper bar and PCB hybrid power supply methods of a kind of server as claimed in claim 1, it is characterized in that, the step
6) copper bar equivalent resistance is 1.14RPCB.
4. the copper bar and PCB hybrid power supply methods of a kind of server as claimed in claim 1, it is characterized in that, the step
7) by adjusting the thickness, width or material of copper bar, copper bar design resistance and the copper bar equivalent resistance numerical value calculated are realized
It is equal.
5. a kind of copper bar of server being applied to as described in any one of Claims 1-4 and the confession of PCB hybrid power supply methods
Electric structure, it is characterized in that, a kind of PCB electric power-feeding structures of server, including pcb board card, copper bar, pcb board card are provided with power supply
Via, copper bar power input, copper bar power output end and copper bar pad, copper bar interior of bond pads is provided with area of knockout, described
The input, output end of copper bar is connected with pcb board respectively.
6. electric power-feeding structure as claimed in claim 5, it is characterized in that, the PCB voltage planes use 12V voltage planes.
7. electric power-feeding structure as claimed in claim 6, it is characterized in that, the aspect of the PCB carryings 12V electric currents includes 12V power supplys
One and 12V of layer bus planes two, 12V bus planes one, 12V bus planes two are all located at PCB internal layer, and every layer of power supply face thickness is 2oz,
Wherein the flood of 12V bus planes one laying 12V, 12V bus planes two are only laid this layer of center section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749048.6A CN107690255B (en) | 2017-08-28 | 2017-08-28 | Copper bar and PCB hybrid power supply method and power supply structure for server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749048.6A CN107690255B (en) | 2017-08-28 | 2017-08-28 | Copper bar and PCB hybrid power supply method and power supply structure for server |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107690255A true CN107690255A (en) | 2018-02-13 |
| CN107690255B CN107690255B (en) | 2020-11-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710749048.6A Active CN107690255B (en) | 2017-08-28 | 2017-08-28 | Copper bar and PCB hybrid power supply method and power supply structure for server |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631583A (en) * | 2018-05-28 | 2018-10-09 | 郑州云海信息技术有限公司 | A kind of layout method and its power module of multi-phase DC-DC power module |
| CN111381657A (en) * | 2020-02-28 | 2020-07-07 | 苏州浪潮智能科技有限公司 | CPU power supply system and server |
| CN112616252A (en) * | 2020-12-09 | 2021-04-06 | 深圳市国鑫恒运信息安全有限公司 | Method and device applied to power supply of high-power-consumption PCBA of general server |
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| CN203327376U (en) * | 2013-07-10 | 2013-12-04 | 惠州市亿能电子有限公司 | Printed circuit board (PCB) for battery management system |
| CN204131831U (en) * | 2014-11-10 | 2015-01-28 | 浪潮电子信息产业股份有限公司 | A kind of big current that prevents conducts the power panel causing local overheating |
| CN206195002U (en) * | 2016-12-05 | 2017-05-24 | 郑州云海信息技术有限公司 | Novel heavy current power supply device |
| CN107040127A (en) * | 2017-05-31 | 2017-08-11 | 江苏兆能电子有限公司 | A kind of high current system export structure |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2888746Y (en) * | 2006-03-29 | 2007-04-11 | 陈清富 | Large-current circuit board for brushless motor controller |
| CN203327376U (en) * | 2013-07-10 | 2013-12-04 | 惠州市亿能电子有限公司 | Printed circuit board (PCB) for battery management system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631583A (en) * | 2018-05-28 | 2018-10-09 | 郑州云海信息技术有限公司 | A kind of layout method and its power module of multi-phase DC-DC power module |
| CN111381657A (en) * | 2020-02-28 | 2020-07-07 | 苏州浪潮智能科技有限公司 | CPU power supply system and server |
| CN111381657B (en) * | 2020-02-28 | 2021-07-16 | 苏州浪潮智能科技有限公司 | CPU power supply system and server |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107690255B (en) | 2020-11-27 |
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