CN205264471U - Network card and network transformer thereof - Google Patents
Network card and network transformer thereof Download PDFInfo
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- CN205264471U CN205264471U CN201521141978.6U CN201521141978U CN205264471U CN 205264471 U CN205264471 U CN 205264471U CN 201521141978 U CN201521141978 U CN 201521141978U CN 205264471 U CN205264471 U CN 205264471U
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- coiling
- magnet ring
- wound
- main magnet
- network transformer
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Abstract
The utility model discloses a network transformer of network card, which comprises a housin, be provided with magnetic ring group in the casing, magnetic ring group is including four main magnetic rings and four vice magnetic rings of setting up in pairs, include still that the syntropy twines in two first wire windings of main magnetic ring, article two, second wire winding, third wire winding and fourth wire winding, the wire -wound tail end syntropy of wire -wound head end of third and fourth is twined in vice magnetic ring, article two, first wire -wound head end, article two, the wire -wound tail end of second, article two, first wire -wound tail end and two wire -wound head ends of second, wire -wound head end of fourth and the wire -wound tail end of third, wire -wound head end of third and the wire -wound tail end of fourth correspond six pins connecting the casing respectively. Replace four traditional wire windings through setting up six wire windings, improved transmission speed and frequency of operation, can be applicable to 10, 000, 000, 000 ethernets. The utility model also discloses a network card of including above -mentioned network transformer.
Description
Technical field
The utility model relates to network interface card field, particularly relates to a kind of network transformer of network interface card.In addition, the utility model also relates to a kind of network interface card that comprises above-mentioned network transformer.
Background technology
Network transformer is installed on network interface card, is widely used in ethernet device its toolThere are signal transmission, impedance matching, signal noise inhibition, high-voltage isolating and conventional Ethernet to supplyThe functions such as electricity. Existing network transformer is gigabit Ethernet network transformer, comprise main magnet ring andSecondary magnet ring, and be wound in four coilings of main magnet ring and secondary magnet ring with ad hoc fashion, four aroundThe head and the tail two ends of line or combination or separately formation lead-in wire, connect respectively six pins on housing,Mate the above-mentioned effect that realizes with network interface card.
But, along with Ethernet is more and more higher to the requirement of transmission speed, 10,000,000,000 current etherNet needs the transmission speed of 10Gb/s, and baud rate reaches 833M, approximates the work of 450MHZFrequency, therefore the operating frequency of ten thousand mbit ethernet network transformers is necessary for 450MHZ-500MHZ,And the operating frequency of existing gigabit Ethernet network transformer is 80MHZ-100MHZ, therefore traditionalNetwork transformer can not meet corresponding requirements.
Therefore, how to provide a kind of transmission speed and operating frequency that can adapt to ten thousand mbit ethernetsNetwork transformer make the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of network transformer of network interface card, can adapt to 10,000,000,000The transmission speed of Ethernet and operating frequency. Another object of the present utility model is to provide a kind of bagDraw together the network interface card of above-mentioned network transformer, can adapt to transmission speed and the work frequency of ten thousand mbit ethernetsRate.
For solving the problems of the technologies described above, the utility model provides a kind of network transformer of network interface card,Comprise the housing for being connected with the circuit board of described network interface card, in described housing, be provided with magnet ring group,Described magnet ring group comprises four main magnet rings and four secondary magnet rings of paired setting, also comprises in the same way and twiningBe around in two article of first coiling of described main magnet ring, two article of second coiling, the 3rd coiling and the 4th aroundLine, the tail end of the head end of described the 3rd coiling and described the 4th coiling is wound in described secondary magnetic in the same wayRing, described in the tail end of described second coiling of head ends, two of two described the first coilings, twoFirst coiling tail end and two articles described second coiling head end, described the 4th coiling head end andThe tail end of the tail end of described the 3rd coiling, the head end of described the 3rd coiling and described the 4th coiling dividesNot corresponding six pins that connect described housing.
Preferably, two articles of described first coilings are wound in the part and the described the 3rd of described main magnet ringThe part that coiling is wound in described main magnet ring is twisted into the first main magnet ring coiling mutually, described in twoPart and described the 4th coiling that the second coiling is wound in described main magnet ring are wound in described main magnet ringPart be mutually twisted into the second main magnet ring coiling.
Preferably, described the first main magnet ring coiling and described the second main magnet ring winding department are every alternately equalEvenly be wound in described main magnet ring.
Preferably, described the 3rd coiling is wound in part and described the 4th coiling of described secondary magnet ringThe part that is wound in described secondary magnet ring is mutually stranded.
Preferably, described the first main magnet ring coiling and described the second main magnet ring coiling are wound around described master360 degree circumference of magnet ring, described the 3rd coiling and the described secondary magnet ring of described the 4th coiling winding330 degree circumference.
Preferably, the head end of two described the first coilings is mutually stranded, two described the second coilingsTail end mutually stranded, two described first coiling tail ends and two described second coiling headHold mutually stranded, described the 4th coiling head end and described the 3rd coiling tail end mutually stranded.
Preferably, described the first coiling, described the second coiling, described the 3rd coiling and described theFour coilings are enamel-covered wire.
Preferably, comprise multiple described magnet ring groups, each described magnet ring group includes paired settingFour described main magnet rings and four described secondary magnet rings, described magnet ring group and described housing envelope is coated with solidFixed.
Preferably, the dead in line of four described main magnet rings of described magnet ring group, arranges in pairsBetween described main magnet ring and described secondary magnet ring, be provided with interval, and both axis are mutually vertical.
The utility model also provides a kind of network interface card, comprises circuit board and is installed on described circuitThe network transformer of plate, the network that described network transformer is specially described in above-mentioned any one becomesDepressor.
The network transformer that the utility model provides, comprises for being connected with the circuit board of network interface cardHousing, is provided with magnet ring group in housing, magnet ring group comprises four main magnet rings and four of paired settingIndividual secondary magnet ring, also comprise two first coilings being wound in the same way main magnet ring, two the second coilings,The 3rd coiling and the 4th coiling, the tail end of the head end of the 3rd coiling and the 4th coiling is wound in the same waySecondary magnet ring, the head end of two first coilings, the tail end of two the second coilings, two the first coilingsTail end and two article second coiling head end, the 4th coiling head end and the 3rd coiling tail end,The tail end of the head end of the 3rd coiling and the 4th coiling is connected respectively six pins of housing. LogicalCross six four traditional coilings of coiling replacement be set, improved transmission speed and operating frequency,Can be applicable to ten thousand mbit ethernets.
The utility model also provides a kind of network interface card that comprises above-mentioned network transformer, due to above-mentioned netNetwork transformer has above-mentioned technique effect, and above-mentioned network interface card also should have identical technique effect,This introduces no longer in detail.
Brief description of the drawings
Fig. 1 is the master of a kind of detailed description of the invention of network transformer provided by the utility modelMagnet ring and secondary magnet ring canoe schematic diagram;
Fig. 2 is a kind of detailed description of the invention whole of network transformer provided by the utility modelBody structure schematic diagram;
Fig. 3 be network transformer provided by the utility model a kind of detailed description of the inventionOne main magnet ring coiling canoe schematic diagram;
Fig. 4 be network transformer provided by the utility model a kind of detailed description of the inventionTwo main magnet ring coiling canoe schematic diagrames;
Fig. 5 is the master of a kind of detailed description of the invention of network transformer provided by the utility modelMagnet ring canoe schematic diagram;
Fig. 6 is the drawing of a kind of detailed description of the invention of network transformer provided by the utility modelPin wiring canoe schematic diagram;
Fig. 7 is the drawing of a kind of detailed description of the invention of network transformer provided by the utility modelPin connected mode schematic diagram.
Detailed description of the invention
Core of the present utility model is to provide a kind of network transformer of network interface card, can adapt to 10,000,000,000The transmission speed of Ethernet and operating frequency. Another core of the present utility model is to provide a kind of bagDraw together the network interface card of above-mentioned network transformer, can adapt to transmission speed and the work frequency of ten thousand mbit ethernetsRate.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction withThe utility model is described in further detail for the drawings and specific embodiments.
Please refer to Fig. 1 to Fig. 6, Fig. 1 is network transformer provided by the utility model onePlant main magnet ring and the secondary magnet ring canoe schematic diagram of detailed description of the invention; Fig. 2 is that this practicality is newThe overall structure schematic diagram of a kind of detailed description of the invention of the network transformer that type provides; Fig. 3For the first main magnet ring of a kind of detailed description of the invention of network transformer provided by the utility modelCoiling canoe schematic diagram; Fig. 4 is the one of network transformer provided by the utility modelThe second main magnet ring coiling canoe schematic diagram of detailed description of the invention; Fig. 5 is the utility modelThe main magnet ring canoe schematic diagram of a kind of detailed description of the invention of the network transformer providing;Fig. 6 is that the pin of a kind of detailed description of the invention of network transformer provided by the utility model connectsLine canoe schematic diagram; Fig. 7 is a kind of tool of network transformer provided by the utility modelThe pin connected mode schematic diagram of body embodiment.
The network transformer that the utility model detailed description of the invention provides, comprises housing 7, housingIn 7, be provided with at least one magnet ring group, multiple magnet ring groups can be set, every a magnet ring is setGroup arranges 24 pins on housing, for being connected with the circuit board of network interface card. Each magnet ringGroup comprises four main magnet rings 5 and four secondary magnet rings 6, and main magnet ring 5 and secondary magnet ring 6 arrange in pairs,When multiple magnet ring group is set, the multiple that the quantity of main magnet ring 5 is four, the quantity of secondary magnet ring 6 is alsoIt is four multiple.
Also comprise two article of first coiling 1, two article of second coiling 2, one article of the 3rd coiling 3 andArticle the 4th coiling 4, amounts to six coilings, wherein two first coilings 1, two the second coilings 2,The 3rd coiling 3 and the 4th coiling 4 are all wound in main magnet ring 5, pass the center of main magnet ring 5,After outwards walking around cylindrical, be inwardly wound around again, be again back and forth wound around through center, six coilings simultaneouslyWinding direction identical.
Be wound in after main magnet ring 5, the tail end of the head end of the 3rd coiling 3 and the 4th coiling 4 is first sameTo being wound in secondary magnet ring 6, through the center of secondary magnet ring 6, outwards walk around after cylindrical inside againBe wound around, be again back and forth wound around through center. And the head end of six coilings and tail end are pressed as belowFormula connects pin, the tail end of two first coiling 1 head ends, two the second coilings 2, twoThe head end of the first coiling tail end of 1 and two article of second coiling 2, the head end of the 4th coiling 4 and theThe tail end of the tail end of three coilings 3, the head end of the 3rd coiling 3 and the 4th coiling 4 corresponding company respectivelySix pins of body contact body 7.
Taking a pair of magnet ring as example, the head end of two first coilings 1 connects the second pin of housing 7Article 02, two, the tail end of the second coiling 2 connects 03, two first coiling of the 3rd pin of housing 71 tail end is connected housing 7 the first pin 01, the four with two second coiling 2 head ends aroundThe head end of line 4 is connected the 24 pin 24, the three of housing 7 with the tail end of the 3rd coiling 3The tail end that the head end of coiling 3 connects the 23 pin 23, the four coilings 4 of housing 7 connectsThe 22 pin 22 of housing 7. Wherein head end and tail end are in order to distinguish the two ends of coiling,In winding process, can, by starting to be wound in one end definition head end of main magnet ring 5, end be twinedThe one end that is around in main magnet ring 5 is defined as tail end, thereby ensures in the situation that winding direction is fixing,Be connected correctly with pin. Wherein the connected mode of coiling and six pins and six pins are at shellSet-up mode on body 7 is identical with existing mode, simultaneously owing to having four pairs of magnet rings, and therefore 24Individual pin is also corresponding is divided into four groups, and six every group, with the corresponding connection of coiling of every pair of magnet ring.
Replace four traditional coilings by six coilings are set, improved transmission speed and workFrequency, can be applicable to ten thousand mbit ethernets.
In the network transformer providing in the utility model detailed description of the invention, two first coilings1 part and the 3rd coiling 3 parts that are wound in main magnet ring 5 that are wound in main magnet ring 5 are twisted mutuallySynthetic the first main magnet ring coiling 113, is three coilings mutually stranded. Article two, the second coiling 2Being wound in the part of main magnet ring 5 and the 4th coiling 4, to be wound in the part of main magnet ring 5 mutually strandedBecome the second main magnet ring coiling 224, be three coilings mutually stranded. The 3rd coiling 3 is wound inIt is mutually stranded that the part of secondary magnet ring 6 and the 4th coiling 4 are wound in the part of secondary magnet ring 6, isArticle two, coiling is mutually stranded. Further, the first main magnet ring coiling 113 and the second main magnet ring aroundLine 224 intervals replace uniform winding in main magnet ring 5, i.e. the first main magnet ring coiling 113 and secondMain magnet ring coiling 224 forms double-spiral structure and is wound in main magnet ring 5. Stranded can heightening mutuallyThe functional effect of network transformer is managed line clear simultaneously, is convenient to winding process, double-spiral structureEnsure inductance effect, make Distribution of Magnetic Field even, also can adopt other canoes or combination,As be adhesively fixed, all within protection domain of the present utility model.
In order to make networking transformer play better functional effect, can make the first main magnet ring coiling113 and second main magnet ring coiling 224 be wound around 360 degree circumference of main magnet ring 5, the 3rd coiling 3Be wound around 330 of secondary magnet ring 6 with the 4th coiling 4 and spend circumference. I.e. the first main magnet ring coiling 113 HesThe winding starting point of the second main magnet ring coiling 224 on main magnet ring 5 is 360 degree circumference to terminal,The 3rd coiling 3 and the winding starting point of the 4th coiling 4 on secondary magnet ring 6 are 330 degree circles to terminalWeek. Also can adjust angle according to actual conditions, all within protection domain of the present utility model.
In the network transformer providing in the utility model detailed description of the invention, can be by two firstThe head end of coiling 1 is mutually stranded as electrode, the mutual stranded work of tail end of two second coilings 2For electrode, the mutual stranded reality of head end of the tail end of two first coilings 1 and two second coilings 2The function of existing primary center tap, the tail end of the head end of the 4th coiling 4 and the 3rd coiling 3 is mutualThe tap of stranded formation secondary centre, the head end of the 3rd coiling 3 is as electrode simultaneously, and the 4th winds the line4 tail end is as electrode. Use stranded mode to be convenient to manage line, wherein stranded degree, i.e. unitStranded fried dough twist joint number amount in length, can adjust according to actual conditions, all new in this practicalityWithin the protection domain of type.
In the network transformer providing in the utility model detailed description of the invention, the first coiling 1,The second coiling 2, the 3rd coiling 3 and the 4th coiling 4 are enamel-covered wire, and applicable different coloursDistinguished, also can be adopted rubber insulated copper wire, as long as for insulated wire, all in protection of the present utility modelWithin scope. Magnet ring group is coated with and is fixed by encapsulating material and housing 7 envelopes simultaneously, forms completeBody, ensures stability.
In the network transformer providing in above-mentioned each detailed description of the invention, paired main magnet ring 5 HesBetween secondary magnet ring 6, be provided with interval, this interval determines according to the length winding the line between two magnet rings,And the axis of main magnet ring 5 and secondary magnet ring 6 is mutually vertical. Meanwhile, every pair of main magnet ring 5 and secondary magneticRing 6 is set up in parallel, and the dead in line of four main magnet rings 5 in same magnet ring group, correspondingMain magnet ring 5 and secondary magnet ring 6 between distance equate. Compound with regular structure, is convenient to processing, also canAdopt other mounting means, all within protection domain of the present utility model.
On the basis of the network transformer providing in above-mentioned each detailed description of the invention, it is specifically manufacturedMethod is as follows:
According to the technical specification of enamel-covered wire, get respectively two golden enamel-covered wires as two first aroundLine 1 and green enamel-covered wire be as the 3rd coiling 3, by requirement necessarily by these three enamel-covered wiresScutched line yarn, then get respectively two blue enamel-covered wires as two second coiling 2 and one redColored paint envelope curve is as the 4th coiling 4, by requirement necessarily by these three enamel-covered wire scutched line yarns,Form respectively totally two groups of golden fairy green twistedwire and blue red twistedwires, golden fairy green twistedwireBe the first main magnet ring coiling 113, blue red twistedwire is the second main magnet ring coiling 224.Wherein, choosing just for the ease of difference of color, does not affect protection model of the present utility modelEnclose.
Two golden enamel-covered wires should be according to the electric current through-current capability selecting technology of this ten thousand mbit ethernetThe identical enamel-covered wire of specification, two blue enamel-covered wires should be according to the electric current of this ten thousand mbit ethernetThe identical enamel-covered wire of through-current capability selecting technology specification.
This gold fairy green twistedwire is worn to some circles on the main magnet ring 5 of transformer, evenly connect up threeDegrees, does not intersect, does not overlap; Again this blue red twistedwire is existed along same directionOn the main magnet ring 5 of transformer, wear some circles, the 360 deg that evenly connects up, does not intersect, does not overlap,And these two groups of twistedwires are wiring alternately, spaced apart; Difference after having worn these two groups of twistedwiresBy head end with tail end unclamps and it is straight to make in order; Be wound around the number of turns by this ten thousand mbit ethernets high frequency transformerInductance specification, individual pen inductance value and the apparent size of main magnet ring 5 determine.
Respectively the tail end of the head end of two golden lines and two blue lines is broken into two groups of twistedwires,Again respectively by the head end of the tail end of two golden lines and two blue lines totally four lines break into another groupTwistedwire; Then the head end of the tail end of single green line and single red line is broken into again to one group of fiber cropsYarn, then the tail end of the head end of single green line and single red line is broken into another group twistedwire;
Complete after threading at main magnet ring 5, tackle it and form centre tapped enamel-covered wire and carry out twisted wireScutching flower, to realize its centre cap function. By the head of the tail end of two gold threads and two blue linesEnd twists together, and realizes the function of its primary center tap, more respectively by remaining Jin JintongColo(u)r streak and blue same colo(u)r streak twist together, and form twisted-pair feeder, realize its function as electrode;Single green line tail end and single red line head end are twisted together, form secondary centre tap, willSingle green head end and single red tail end twist together, and do preliminary activities for wearing secondary magnet ring 6;
If wear on secondary magnet ring 6 with the green line head end of having accomplished fluently and red line tail end twistedwireDry circle, wiring 330 degree, do not intersect, do not overlap and keep between two magnet rings suitably betweenEvery, form one group of complete line and hold group; Make four groups of techniques with identical method for winding completeIdentical line holds group.
Choose the housing 7 of certain specification, respectively corresponding line is held to group and be connected to corresponding shellOn the pin of body 7, composition closed-loop path, thus form this ten thousand mbit ethernets high frequency transformer;
Especially, when completing after electrode connection, for making this ten thousand mbit ethernets high-frequency transformer structureStable and parameter stability, need hold group by line with appropriate encapsulating material and seal to be coated with and fix, and makesHousing 7 and line hold group and form a complete individuality.
Except above-mentioned network transformer, detailed description of the invention of the present utility model also provides a kind of bagDraw together the network interface card of above-mentioned network transformer, the structure of these other each several parts of network interface card please refer to prior art,Repeat no more herein.
Above network interface card provided by the utility model and network transformer thereof are carried out to detailed JieContinue. Having applied specific case herein explains principle of the present utility model and embodimentState, the explanation of above embodiment is just for helping to understand method of the present utility model and core thereofThought. It should be pointed out that for those skilled in the art, do not departing from thisUnder the prerequisite of utility model principle, can also carry out some improvement and modification to the utility model,These improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. a network transformer for network interface card, comprises for being connected with the circuit board of described network interface cardHousing (7), described housing is provided with magnet ring group in (7), described magnet ring group comprises in pairs establishesFour main magnet rings (5) of putting and four secondary magnet rings (6), is characterized in that, also comprises in the same way and twiningBe around in two article of first coiling (1), two article of second coiling (2), the 3rd of described main magnet ring (5)Coiling (3) and the 4th coiling (4), described the 3rd wind the line (3) head end and the described the 4th aroundThe tail end of line (4) is wound in described secondary magnet ring (6) in the same way, two described the first coilings (1)Tail end, two described first coilings (1) of described the second coiling (2) of head end, twoTail end and two articles described second coiling (2) head end, described the 4th coiling (4) head end andDescribed the 3rd coiling (3) tail end, described the 3rd coiling (3) head end and the described the 4th aroundThe tail end of line (4) is connected respectively six pins of described housing (7).
2. network transformer according to claim 1, is characterized in that, described in twoPart and described the 3rd coiling (3) that the first coiling (1) is wound in described main magnet ring (5) twineThe part that is around in described main magnet ring (5) is twisted into the first main magnet ring coiling (113), two mutuallyDescribed the second coiling (2) is wound in part and described the 4th coiling (4) of described main magnet ring (5)The part that is wound in described main magnet ring (5) is twisted into the second main magnet ring coiling (224) mutually.
3. network transformer according to claim 2, is characterized in that, described firstMain magnet ring coiling (113) and described second main magnet ring coiling (224) interval replace uniform windingIn described main magnet ring (5).
4. network transformer according to claim 3, is characterized in that, the described the 3rdPart and described the 4th coiling (4) that coiling (3) is wound in described secondary magnet ring (6) are wound inThe part of described secondary magnet ring (6) is mutually stranded.
5. network transformer according to claim 4, is characterized in that, described firstMain magnet ring coiling (113) and described the second main magnet ring coiling (224) are wound around described main magnet ring (5)360 degree circumference, described the 3rd coiling (3) and described the 4th wind the line (4) be wound around described pair330 degree circumference of magnet ring (6).
6. network transformer according to claim 5, is characterized in that, described in twoThe head end of the first coiling (1) is mutually stranded, and the tail end of two described the second coilings (2) is mutualStranded, the head of the tail end of two described the first coilings (1) and two described the second coilings (2)Hold mutually stranded, described the 4th coiling (4) head end and described the 3rd coiling (3) tail endMutually stranded.
7. network transformer according to claim 1, is characterized in that, described firstCoiling (1), described the second coiling (2), described the 3rd coiling (3) and described the 4th coiling (4)Be enamel-covered wire.
8. network transformer according to claim 1, is characterized in that, comprises multipleDescribed magnet ring group, each described magnet ring group includes four described main magnet rings (5) of paired settingWith four described secondary magnet rings (6), described magnet ring group and described housing (7) envelope are coated with fixing.
9. according to the network transformer described in claim 1 to 8 any one, its feature existsIn, the dead in line of four described main magnet rings (5) of described magnet ring group, described in arranging in pairsBetween main magnet ring (5) and described secondary magnet ring (6), be provided with interval, and both axis are mutualVertically.
10. a network interface card, comprises circuit board and is installed on the network transformer of described circuit board,It is characterized in that, described network transformer is specially described in claim 1 to 9 any oneNetwork transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141978.6U CN205264471U (en) | 2015-12-31 | 2015-12-31 | Network card and network transformer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141978.6U CN205264471U (en) | 2015-12-31 | 2015-12-31 | Network card and network transformer thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205264471U true CN205264471U (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521141978.6U Expired - Fee Related CN205264471U (en) | 2015-12-31 | 2015-12-31 | Network card and network transformer thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205264471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513765A (en) * | 2015-12-31 | 2016-04-20 | 东莞铭普光磁股份有限公司 | Network card and network transformer thereof |
| CN107785151A (en) * | 2016-08-26 | 2018-03-09 | 广东美信科技股份有限公司 | A kind of ethernet network transformer and its manufacture method |
-
2015
- 2015-12-31 CN CN201521141978.6U patent/CN205264471U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513765A (en) * | 2015-12-31 | 2016-04-20 | 东莞铭普光磁股份有限公司 | Network card and network transformer thereof |
| CN107785151A (en) * | 2016-08-26 | 2018-03-09 | 广东美信科技股份有限公司 | A kind of ethernet network transformer and its manufacture method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20211231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |