CN208226861U - A kind of server external power supply filter - Google Patents
A kind of server external power supply filter Download PDFInfo
- Publication number
- CN208226861U CN208226861U CN201820781947.4U CN201820781947U CN208226861U CN 208226861 U CN208226861 U CN 208226861U CN 201820781947 U CN201820781947 U CN 201820781947U CN 208226861 U CN208226861 U CN 208226861U
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- power supply
- line
- capacitor
- external power
- shell
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- 238000013461 design Methods 0.000 claims abstract description 29
- 239000003990 capacitor Substances 0.000 claims abstract description 24
- 239000004033 plastic Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 229920002799 BoPET Polymers 0.000 claims description 3
- 239000005041 Mylar™ Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Filters And Equalizers (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a kind of server external power supply filters, it is characterized in that, including shell and the pcb board for being set to interior of shell, the right side interface of pcb board is connect by reference power supply line with AC power supplies inside machine box for server, left side interface is connect with standard AC electrical line female interface, connects different power-line plugs according to the design of the power supply of different regions；The filter circuit of pcb board includes fuse, common mode inductance L, X capacitor and Y capacitance, is connect after the L line concatenation fuse of left side interface with one end of X capacitor, the other end of X capacitor is connect with N line；X capacitor and common mode inductance L and downlink connection, the side L line of right side interface connect two Y capacitances with N line over the ground.
Description
Technical field
The utility model relates to server power supply technical field, especially a kind of server external power supply filter.
Background technique
Electromagnetic disturbance (EMI) is a serious and ever-increasing environmental pollution form, its influence as low as broadcast reception
When the crack for allowing people to be sick of that generates, may cause fatal accident to the vital control system collapse of safety greatly.
And radiation disturbance is most important interference mode in electromagnetic disturbance, in the EMI suppression design of server, the EMC of AC power supplies is filtered
Design is important a link.
As shown in Figure 1, existing server A C power filter is typically integrated on the power panel inside AC power supplies, still
With the development of server, AC power supplies module is forced the smaller and smaller of compression, on one side to it is other newly plus functional modules allow space.This
Cause AC power supplies manufacturer increasingly to simplify in the design of power module filter, many servers is caused to be surveyed in the EMC of AC power supplies
Many problems are gone out in examination.
As shown in Fig. 2, present some companies use external since difficult design occurs in built-in power electromagnetic interface filter
The scheme of EMI power filter module, external power supply electromagnetic interface filter are fixed on cabinet, are separated with AC power supplies module.
Described in part as above, in server built-in power electromagnetic interface filter scheme, built-in power electromagnetic interface filter first is accounted for
With many spaces of server power block, very big conflict is produced with the development of the high densification of server.Built-in power EMI
Filter is substantially deleted by power supply manufacturer.Secondly, the debugging of built-in power electromagnetic interface filter is very troublesome, need to open AC power supplies
Shell, soldering part etc..
External server power supply electromagnetic interface filter module equally has many problems.It is equally space problem, EMI filtering first
Although device module is separated from server power block, the space of cabinet inside is still occupied.Followed by safety is asked
Topic, currently on the market the high-tension line of electromagnetic interface filter module all it is exposed on the outside, the safety of this different design hop server
Design rule has complete hidden danger.
Either external or built-in electromagnetic interface filter module, equal implementation is complicated, changes to the internal structure of server
It is larger, it needs to be planned in the conceptual level.If we are placed on filter the outside of entire cabinet, server is come
It says and many problems if directly connect at AC socket rear is equally occupied space, meanwhile, filter module contains high pressure
Route, abnormally dangerous, safe design also faces problems, furthermore, it is put on the outside of cabinet, has related to apparent safety and recognized
Card problem etc..
Utility model content
The purpose of the utility model is to provide a kind of server external power supply filters, solve AC power supplies electromagnetic interface filter mould
Block occupied space, Electrical Safety problem.
To achieve the above object, the utility model adopts the following technical solutions:
The utility model provides a kind of server external power supply filter, characterized in that including shell and is set to outer
The right side interface of pcb board inside shell, pcb board is connect by reference power supply line with AC power supplies inside machine box for server, and left side connects
Mouth is connect with standard AC electrical line female interface, connects different power-line plugs according to the design of the power supply of different regions；Pcb board
Filter circuit include fuse, common mode inductance L, X capacitor and Y capacitance, after the L line concatenation fuse of left side interface with X capacitor
One end connection, the other end of X capacitor connect with N line；X capacitor and common mode inductance L and downlink connection, the side L line of right side interface
It connect two Y capacitances over the ground with N line.
Further, the shell is integrally formed the plastic material of design, and the interior skin of plastic shell carries out conductive
Spraying.
Further, plastic shell offers several thermal vias, and the size of thermal vias needs to combine heat dissipation effect
Fruit and safety are designed.
Further, the shell, which is integrally formed, designs metal material, and metal shell internal circuit component surface makes
It is insulated with mylar film.
Further, the buckle being fastenedly connected with power-line plug is provided on the inside of standard AC electrical line female interface.
Further, right side interface uses overstriking, stack design.
Further, common mode inductance L and X capacitance parameter design is chosen according to following formula:F is to think
The noise frequency to be filtered out, L is inductance value, C is capacitance.
Further, Y capacitance parameter selection is selected according to the frequency impedance figure in capacitor specifications, is chosen at noise frequency
That minimum capacitor of impedance under rate.
The effect provided in utility model content is only the effect of embodiment, rather than whole effects that utility model is all
Fruit, a technical solution in above-mentioned technical proposal have the following advantages that or the utility model has the advantages that
The implementation that the utility model proposes filters outside cabinet, while proposing the design of filter internal
Scheme, and many optimization designs have been carried out to organization plan.Solves the difficulty that AC power supplies filter is not available outside cabinet
Topic, solve the problems, such as filter occupied space, the utility model proposes scheme with high security, the high spy of ease for use
Point solves the problems, such as EMI caused by AC power supplies, greatly reduces the Electromagnetic Compatibility authentication risk of product, improves product quality,
It ensure that product is successfully smoothly sold, obtain a large amount of economic benefit indirectly.
Detailed description of the invention
Fig. 1 is that filter module is integrated in AC power supplies schematic diagram of internal structure；
Fig. 2 is that filter module is fixed on server cabinet structure schematic diagram；
Fig. 3 is the utility model server external power supply filter connection schematic diagram；
Fig. 4 is the utility model server external power supply filter internal structure schematic diagram；
Fig. 5 is filter circuit schematic diagram.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this reality
It is described in detail with novel.Following disclosure provides many different embodiments or example is used to realize the utility model
Different structure.In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.In addition,
The utility model can in different examples repeat reference numerals and/or letter.This repetition is for simplified and clear mesh
, the relationship between discussed various embodiments and/or setting itself is not indicated.It should be noted that illustrated in the accompanying drawings
Component is not drawn necessarily to scale.The description to known assemblies and treatment technology and process is omitted to avoid not in the utility model
Necessarily limit the utility model.
As shown in figure 3, server external power supply filter, including shell and the pcb board for being set to interior of shell, pcb board
Left side interface connect with standard AC electrical line female interface, different power supply line is connected according to the design of the power supply of different regions and is inserted
Head；The right side interface of pcb board is connect by reference power supply line with AC power supplies inside machine box for server, and right side interface directly welds mark
Quasi- power supply line is connected to server A C socket, does so, and filter module can be authenticated together with complete machine, be saved money.
The plastic material of design as shown in figure 4, shell is integrally formed, the interior skin of plastic shell carry out conductive spray
It applies.Purpose is to carry out radiation shield, and to ensure that product is tested by EMI, compared with metal material shell, conduction spraying is also reduced into
This.The shell of filter module will carry out integrated design, screw not used, to ensure safety.
Plastic shell offers several thermal vias, the size of thermal vias need to combine heat dissipation effect and safety into
Row design.Opening diameter is in 1.5mm or so.
Shell, which is integrally formed, designs metal material, and metal shell internal circuit component surface is carried out exhausted using mylar film
Edge.Since metal material thermal conductivity is good, shell can not have to aperture.Equally to metal shell suggestion carry out integrated design or
Rivet design prevents from arbitrarily opening.If need to add warning mark using the design for disassembly of screw form in shell: inside have
High-tension circuit, layman forbid opening！
The buckle being fastenedly connected with power-line plug is provided on the inside of standard AC electrical line female interface.
Interface uses overstriking, stack design on the right side of filter module, prevents long-time service from fractureing.The power supply line length of welding
At 1 meter or so, so no matter in test and in use, filter module can be fallen on the ground under table, filter mould is reduced
Block weight causes to power off to the pulling force of server A C power interface to prevent from being dragged out.Meanwhile it being also conveniently fixed on cabinet.
As shown in figure 5, the filter circuit of pcb board includes fuse, common mode inductance L, X capacitor and Y capacitance, left side interface
It is connect after L line concatenation fuse with one end of X capacitor, the other end of X capacitor is connect with N line；X capacitor and common mode inductance L and company
Connection, the side L line of right side interface connect two Y capacitances with N line over the ground.
The design of common mode inductance L and X capacitance parameter is chosen according to following formula:F wants to filter out
Noise frequency, L is inductance value, C is capacitance.In conjunction with the case where common material, repeatedly attempted.For example to filter out 1.65M miscellaneous
News, can choose 20mH inductance and the capacitor of 0.47uf.
Y capacitance parameter selection is selected according to the frequency impedance figure in capacitor specifications, is chosen at impedance under noise frequency
That minimum capacitor.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but it is not practical new to this
The limitation of type protection scope, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel do not need to make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (8)
1. a kind of server external power supply filter, characterized in that including shell and the pcb board for being set to interior of shell, pcb board
Right side interface connect by AC power supplies inside reference power supply line and machine box for server, left side interface and standard AC electrical line female
Interface connection connects different power-line plugs according to the design of the power supply of different regions；The filter circuit of pcb board includes insurance
Silk, common mode inductance L, X capacitor and Y capacitance, the L line of left side interface are connect after concatenating fuse with one end of X capacitor, X capacitor
The other end is connect with N line；X capacitor is connected in parallel with common mode inductance L, and the side L line of right side interface connect two Y with N line over the ground
Capacitor.
2. server external power supply filter as described in claim 1, characterized in that the shell is integrally formed design
Plastic material, the interior skin of plastic shell carry out conductive spraying.
3. server external power supply filter as claimed in claim 2, characterized in that it is logical that plastic shell offers several heat dissipations
Hole, the size of thermal vias need that heat dissipation effect and safety is combined to be designed.
4. server external power supply filter as described in claim 1, characterized in that the shell, which is integrally formed, designs gold
Belong to material, metal shell internal circuit component surface is insulated using mylar film.
5. server external power supply filter as described in claim 1, characterized in that on the inside of standard AC electrical line female interface
It is provided with the buckle being fastenedly connected with power-line plug.
6. server external power supply filter as described in claim 1, characterized in that right side interface is set using overstriking, stacking
Meter.
7. server external power supply filter as described in claim 1, characterized in that common mode inductance L and X capacitance parameter design
It is chosen according to following formula:F is the noise frequency for wanting to filter out, and L is inductance value, C is capacitance.
8. server external power supply filter as described in claim 1, characterized in that Y capacitance parameter selection is advised according to capacitor
Frequency impedance figure in lattice book is selected, that minimum capacitor of impedance under noise frequency is chosen at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820781947.4U CN208226861U (en) | 2018-05-24 | 2018-05-24 | A kind of server external power supply filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820781947.4U CN208226861U (en) | 2018-05-24 | 2018-05-24 | A kind of server external power supply filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208226861U true CN208226861U (en) | 2018-12-11 |
Family
ID=64505798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820781947.4U Active CN208226861U (en) | 2018-05-24 | 2018-05-24 | A kind of server external power supply filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN208226861U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099594A (en) * | 2020-08-10 | 2020-12-18 | 北京硅原大陆科技有限公司 | Server |
| CN112510991A (en) * | 2020-12-15 | 2021-03-16 | 中国电子科技集团公司第四十四研究所 | EMC protection device and power supply front end filter circuit of small-size photoelectric conversion subassembly |
-
2018
- 2018-05-24 CN CN201820781947.4U patent/CN208226861U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099594A (en) * | 2020-08-10 | 2020-12-18 | 北京硅原大陆科技有限公司 | Server |
| CN112510991A (en) * | 2020-12-15 | 2021-03-16 | 中国电子科技集团公司第四十四研究所 | EMC protection device and power supply front end filter circuit of small-size photoelectric conversion subassembly |
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