CN101667488A - Wide/narrow-band multiplexing coupler for power-line data transmission, and machining method thereof - Google Patents
Wide/narrow-band multiplexing coupler for power-line data transmission, and machining method thereof Download PDFInfo
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- CN101667488A CN101667488A CN200810119492A CN200810119492A CN101667488A CN 101667488 A CN101667488 A CN 101667488A CN 200810119492 A CN200810119492 A CN 200810119492A CN 200810119492 A CN200810119492 A CN 200810119492A CN 101667488 A CN101667488 A CN 101667488A
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Abstract
The invention provides a wide/narrow-band multiplexing coupler for power-line data transmission. The coupler consists of a first part and a second part which are two semi-annular structures and are symmetric, wherein the first part comprises a first semi-annular magnetic material, a first coil which is wound round the first semi-annular magnetic material and a first grounding component which is electrically connected with the first semi-annular magnetic material; two ends of the first coil are electrically connected with a first connector; an encapsulation layer encapsulates the first grounding component, the semi-annular magnetic material and the first coil as a whole; and the first connector and the first grounding component are exposed outside the encapsulation layer; and the differencebetween the second part and the first part only lies in the different number of the turns of a second coil corresponding to the first coil. When the coupler works, the two parts are combined togetherto form a complete annular structure.
Description
Technical field
What the present invention relates to is a kind of coupler and processing method thereof, particularly be a kind of wide/narrow-band multiplexing coupler that is used for the power line transfer of data.
Background technology
Along with the development of information technology, data communication system in the market usually with optical cable, coaxial cable, ethernet line, power line etc. as transmission medium.But for the transfer of data under some particular surroundingss, owing to need setting up of respective transmissions medium, increased the cost of transmission data to a great extent, also be easy to owing to dielectric breakdown produces the not smooth problem of communication simultaneously, the application of wireless data communication technology is more prevalent, but it exists serious stopping to decay and communication blind district.
The enterprising line data transmission technology of power line (ZAP), for the transfer of data of middle line ball, coupler was vital equipment always flourish in these several years.
Consult Chinese patent 03809981.0 on the one hand, name is called the structure of medium voltage power line data coupler, disclosing a kind of being used for is coupled to inductive coupler on the phase line of power line with data-signal, first embodiment is a kind of inductive coupler, comprise the division magnetic core, this division magnetic core has the hole that is formed by first and second portion, and wherein said hole allows phase line as the power line of primary coil from wherein passing through; Be provided with interval insulant between described first and second portion, wherein said interval insulant conducts electricity; And the secondary coil that passes described hole, described second portion electrically contacts by described interval insulant and described first, and this inductive coupler is used for coupling data signal between described phase line and described secondary coil.Above-mentioned inductive coupler comprises also and the secondary circuit of described secondary coil coupling that described secondary coil has exterior contour, and the sectional dimension of this exterior contour is more than or equal to 25% of the internal diameter of described second portion.Above-mentioned inductive coupler also comprises the circuit that is used to eliminate magnetic flux, this circuit has (a) coil, it is embedded in the insulating barrier as described secondary coil and passes described hole, (b) choke, it is connected on the described secondary coil, described secondary circuit comprises conductor, and this conductor has enough big cross-sectional area, to prevent that heat damages described insulating barrier when the described conductor conduct electricity source frequency electric current.
Its another embodiment is coupled to inductive coupler on the phase line of power line with data-signal a kind of being used for.This inductive coupler comprises: (a) division magnetic core, it has the hole that is formed by first and second portion, wherein said hole allows phase line as primary coil from wherein passing through, (b) secondary circuit, its have pass described hole, as the coil of secondary coil, and be provided to the low impedance path of electrical grounding point for supply frequency.Above-mentioned inductive coupler also comprises the circuit that is used to eliminate magnetic flux, this circuit has the choke that is connected on the described secondary coil, wherein, described secondary coil in described hole is embedded in the insulating barrier and comprises conductor, this conductor has enough big cross-sectional area, to prevent that heat damages described insulating barrier when the described conductor conduct electricity source frequency electric current.But the defective of its existence is as follows: the coil of coupler will pass through poor stability in the hole, efficient is lower; The structure of whole coupler is too complicated simultaneously.
Power line inductive coupler in the market is divided into wide-band coupler and arrowband coupler two classes on the other hand, and the former operating frequency is usually more than 1MHz, and the latter is in 1MHz.Two kinds of coupler material differences, external form is different, and use occasion is also different.Operating frequency is generally used for the broadband power line transmission system more than 1MHz, transmission rate is more than 1Mbps, and transmission frequency at 1MHz with the interior arrowband power line transmission system that is generally used for, transmission rate at 1Mbps once, be generally used for occasions such as the less demanding Industry Control of data volume, automatic data loggings, but both can not be general, and this use has brought great inconvenience.
In view of above-mentioned defective, creator of the present invention is through research and practice have obtained this creation finally for a long time.
Summary of the invention
The objective of the invention is to, provide a kind of wide/narrow-band multiplexing coupler and processing method thereof that is used for the power line transfer of data, in order to overcome above-mentioned defective.
For achieving the above object, the technical solution used in the present invention is, a kind of wide/narrow-band multiplexing coupler that is used for the power line transfer of data at first is provided, and it is that first and two semicircular structures of second portion are formed, and both are symmetrical, it is characterized in that,
Described first comprises: one first semi-ring shape magnetic material, one first coil winding is on the described first semicircular magnetic material, one first grounded parts is connected electrically on the described first semicircular magnetic material, the two ends of described first coil are electrically connected with one first connector, one encapsulated layer is packaged into an integral body with described first grounded parts, the first semi-ring shape magnetic material, first coil, and described first connector and first grounded parts are exposed to the encapsulated layer outside;
Described second portion comprises: one second semi-ring shape magnetic material, one second coil winding is on the described second semicircular magnetic material, the two ends of described second coil are electrically connected with one second connector, one second grounded parts is connected electrically on the described second semicircular magnetic material, one encapsulated layer is packaged into an integral body with described second grounded parts, the second semi-ring shape magnetic material, second coil, and described second adapter connector and second grounded parts are exposed to the encapsulated layer outside;
During work, described two parts are lumped together, form a complete circulus.
Wherein, 1 to the 2 circle coil that forms for the polytetrafluoroethylene wire coiling of described first coil.
Wherein, 2 to the 8 circle coils that form for the polytetrafluoroethylene wire coiling of described second coil.
Preferable, described magnetic material is Fe-based amorphous magnetic material, cobalt base amorphous material or nano amorphous magnetic material.
Preferable, also comprise two U type igelite shells, described igelite shell is with described loop configuration inwall, outer wall and the whole parcel of going to the bottom, the termination of the joint of the joint of the joint of described first connector, second connector, first grounded parts and second grounded parts is exposed to the igelite housing exterior, forms two U fonts.
Preferable, also comprising a securing member, it is surrounded the described integral body that is packaged into, in order to keep loop configuration; Described securing member is formed for the stainless steel metal material.
Wherein, described connector is the BNC connector connector, and wherein, described bnc connector and magnetic material do not electrically contact.
Wherein, the material of described encapsulated layer is an epoxy resin.
Next the invention provides the method that a kind of processing is used for the wide/narrow-band multiplexing coupler of power line transfer of data, is used for the wide/narrow-band multiplexing coupler of power line transfer of data in order to manufacturing, wherein,
The magnetic material is arranged to ring-type;
, and described first coil is connected with one first connector around one first coil along its axial rings;
, and described second coil is connected with one second connector around one second coil along its axial rings;
One first grounded parts, one second grounded parts are welded on respectively on the described magnetic material;
With encapsulating material described first grounded parts, second grounded parts and magnetic material, first connector, second connector, first coil, second coil are packaged into an integral body;
One end of described first connector, second connector, first grounded parts and second grounded parts is exposed to the outside;
Be cut into the semi-ring of two symmetries;
And described first connector and first grounded parts are positioned on the semi-ring, and described second connector and second grounded parts are positioned on another semi-ring;
Preferable, also comprise a dry link, the product after the encapsulation is put into the high temperature drying case carry out drying;
Preferable, also comprise: a polyvinyl chloride plastic tablet is attached on the otch of described ring, in order to guarantee the air gap alignment.
Beneficial effect of the present invention compared with the prior art is that at first, the wide and narrow strip power line communications apparatus adopts a coupler, can realize multiple application, applying flexible on same power line;
Secondly, easy construction, system configuration obtains simplifying;
At last, the bandwidth height can provide the physical layer rate of 9k-200M, and multiple business bandwidth demands such as video, audio frequency, recreation, data can either be provided.Arrowband application simultaneously can be for commercial Application such as remote meter reading provide independent transmission channel, the reliability height.
Description of drawings
Fig. 1 is used for the vertical view of the wide/narrow-band multiplexing coupler of power line transfer of data for the present invention;
Fig. 2 is used for the power line transfer of data for the present invention wide/narrow-band multiplexing coupler along A-A to cut-away illustration;
The magnetic hysteresis loop figure of the amorphous magnetic material that Fig. 3 magnetic material of the present invention is selected for use;
Fig. 4 processes the flow chart of the method embodiment one of the wide/narrow-band multiplexing coupler that is used for the power line transfer of data for the present invention;
Fig. 5 processes the flow chart of the method embodiment two of the wide/narrow-band multiplexing coupler that is used for the power line transfer of data for the present invention.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
Because for different working condition requirements, the physical condition of coupler self has different and difference with requirement, its input impedance is by the decision of the matching of the output impedance of the modulator-demodulator that combines with it, for the architectural feature of coupler disclosed in this invention, and insulation resistance: 100M Ω; Input impedance: 50 Ω; Signal attenuation: less than 3-8dB; Withstand voltage: 5kV.We carry out following design for this reason.
See also shown in Figure 1ly, it is used for the vertical view of the wide/narrow-band multiplexing coupler of power line transfer of data for the present invention; Described its main body of wide/narrow-band multiplexing coupler that is used for the power line transfer of data is a circulus, it is actually by first and two semicircular textural associations of second portion and forms, both are symmetrical, at naked first connector 61 (high frequency) that is used for being connected that spills of described upper surface with the broadband power line modem, second connector 62 that is connected with arrowband power line modem (low frequency) and being used to is connected first grounded parts 51 of the PE end of medium voltage power line, second grounded parts 52, wherein said first connector 61 and described first grounded parts 51 are positioned in the first, described second connector 62 and second grounded parts 52 are positioned at second portion, and butt joint combination back is surrounded described first and second portion by a securing member.
Please shown in Figure 2 in conjunction with consulting, its wide/narrow-band multiplexing coupler that is used for the power line transfer of data for the present invention along A-A to cut-away illustration; Its correspondence be the structure that is used for the first of wideband transmit; It comprises the magnetic material 3 of a semicircular, on described semicircular magnetic material 3, be surrounded with first coil 7, described first coil 7 and first connector 61 are electrically connected, described first connector 61 is a BNC connector connector, need to prove that described bnc connector and described Semicircular magnetic material 3 do not electrically contact, described first coil 7 forms for the polytetrafluoroethylene wire coiling, owing to be the broadband part, it is the high-frequency signal port, and therefore the number of turns of twining is 1 to 2 circle.Described first grounded parts 51 passes through solder bond together with described Semicircular magnetic material 3, is used to connect the PE end of medium voltage power line; With encapsulating material above-mentioned device is encapsulated formation one encapsulated layer 2; Described encapsulating material can adopt epoxy resin; Described first can also comprise a U type igelite shell 1 simultaneously; described U type igelite shell 1 wraps up by Semicircular magnetic material 3 inwalls, outer wall after the encapsulating material encapsulation and the integral body of going to the bottom described; the termination of the joint of described first connector 61 and first grounded parts 51 is exposed to described U type igelite shell 1 outside; form a U font; the effect that it not only plays the protection coupler has improved insulation property simultaneously.It is emphasized that the magnetic material that one of core of the present invention is that the present invention adopts is Fe-based amorphous magnetic material, cobalt base amorphous magnetic material or nano amorphous magnetic material, this is because for amorphous magnetic material, itself and ferrite magnetic material are relatively, it has the magnetic saturation of being not easy, the operating frequency height, the advantage that phase shift is little and this loss is little, amorphous state crystal coupler can significantly reduce the insertion loss on medium voltage power line, effective propagation path is greatly improved, satisfy requirement to transmission bandwidth and distance, see also shown in Figure 3ly, it is the magnetic hysteresis loop figure of described amorphous magnetic material, can reflect this characteristics clearly for this reason.
For second portion, it is used for the arrowband, only exists 2 to 8 circles that the second corresponding coil forms for the polytetrafluoroethylene wire coiling with its difference of comparison of first.
In use, at the signal decanting point broadband power line modem and arrowband power line modem are installed respectively, two signal of communication output ports, described first connector 61 connects the broadband power line modem as the high-frequency signal port, described second connector 62 is connected to arrowband power line communications apparatus data output end as the low frequency signal interface, and two cover systems do not disturb mutually.When the wide/narrow-band multiplexing coupler that the present invention is used for the power line transfer of data is installed described first and second portion are encircled in the medium voltage power line threephase cable outside, fastening with band or other modes afterwards, revert to a complete circulus.Also can it be linked closely and revert to a complete ring with the metal fastenings (not shown).High-frequency signal that two cover power line communications apparatus take place and low frequency signal are passed to power line by the wide/narrow-band multiplexing coupler that the present invention is used for the power line transfer of data respectively, outwards transmit by power line, because the frequency band difference, signal does not disturb mutually.In the suitable place of power line far-end corresponding wide-band coupler or arrowband coupler are installed, are connected with supporting system.Corresponding coupling magnet ring received signal utilizes signal wire transmits to arrive the modem signal port, will demodulate digital signal in modulator-demodulator inside, finishes the transmission course of data from an end to the distant place other end.
For how processing the wide/narrow-band multiplexing coupler that the present invention is used for the power line transfer of data, see also shown in 4, it is used for the flow chart of method embodiment one of the wide/narrow-band multiplexing coupler of power line transfer of data for the present invention processing, and it step that comprises is:
Step a: the magnetic material is arranged to ring-type;
Step b: around one first coil, and described first coil is connected with one first connector along its axial rings;
Step c: around one second coil, and described second coil is connected with one second connector along its axial rings;
Steps d: one first grounded parts, one second grounded parts are welded on respectively on the described magnetic material;
Step e: described first grounded parts, second grounded parts and magnetic material, first connector, second connector, first coil, second coil are packaged into an integral body with encapsulating material;
Step f a: end of described first connector, second connector, first grounded parts and second grounded parts is exposed to the outside;
Step g: be cut into the semi-ring of two symmetries, wherein, described first connector and first grounded parts are positioned on the semi-ring, and described second connector and second grounded parts are positioned on another semi-ring;
In order to reach better effect, also comprise a dry link after being preferably in above-mentioned steps g, the product after the encapsulation is put into the high temperature drying case carry out drying; After handling, a polyvinyl chloride plastic tablet is attached on the otch of described ring, in order to guarantee the air gap alignment.
For the wideband transmit part, be that 1 to 2 circle is on described magnetic material with the polytetrafluoroethylene wire coiling number of turns;
For the narrow band transmission part, also to adopt 2 to 8 circle coils that the polytetrafluoroethylene wire coiling forms on described magnetic material.
Also comprise step that U type igelite shell encapsulates once more of processing, with U type igelite shell described semi-circular inner structural wall, outer wall and the integral body of going to the bottom are wrapped up, the termination of the joint of described first connector 61 and first grounded parts 51 is exposed to described U type igelite shell 1 outside, forms a U font.
See also shown in Figure 5ly, it is used for the flow chart of method embodiment two of the wide/narrow-band multiplexing coupler of power line transfer of data for the present invention processing; Also be in order to making the above-mentioned wide/narrow-band multiplexing coupler that is used for the power line transfer of data, but there is some difference with said method on technology, it step that comprises is:
Step a1: the magnetic material is arranged to ring-type;
Step b1: the semi-ring that is cut into two symmetries;
Step c1: around one first coil, and described first coil is connected with one first connector along the axial rings of first semi-ring;
Steps d 1: around one second coil, and described second coil is connected with one second connector along the axial rings of second semi-ring;
Step e1: one first grounded parts is welded on described first semi-ring;
Step f1: one second grounded parts is welded on described second semi-ring;
Step g 1: described first grounded parts, first connector, first coil and magnetic material are packaged into an integral body with encapsulating material;
Step h1: with encapsulating material described second grounded parts, second connector, second coil and magnetic material are packaged into an integral body, an end of described first connector, second connector, first grounded parts and second grounded parts is exposed to the outside.
In like manner in order to reach better effect, also comprise a dry link after being preferably in above-mentioned steps h1, the product after the encapsulation is put into the high temperature drying case carry out drying; After handling, a polyvinyl chloride plastic tablet is attached on the otch of described ring, in order to guarantee the air gap alignment.
As preceding stating description, for the wideband transmit part, be that 1 to 2 circle is on described magnetic material with the polytetrafluoroethylene wire coiling number of turns;
For the narrow band transmission part, also to adopt 2 to 8 circle coils that the polytetrafluoroethylene wire coiling forms on described magnetic material.
Also comprise step that U type igelite shell encapsulates once more of processing, with U type igelite shell described semi-circular inner structural wall, outer wall and the integral body of going to the bottom are wrapped up, the termination of the joint of described first connector 61 and first grounded parts 51 is exposed to described U type igelite shell 1 outside, forms a U font.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (11)
1, a kind of wide/narrow-band multiplexing coupler that is used for the power line transfer of data, it is that first and two semicircular structures of second portion are formed, both are symmetrical, it is characterized in that,
Described first comprises: one first semi-ring shape magnetic material, one first coil winding is on the described first semicircular magnetic material, one first grounded parts is connected electrically on the described first semicircular magnetic material, the two ends of described first coil are electrically connected with one first connector, one encapsulated layer is packaged into an integral body with described first grounded parts, the first semi-ring shape magnetic material, first coil, and described first connector and first grounded parts are exposed to the encapsulated layer outside;
Described second portion comprises: one second semi-ring shape magnetic material, one second coil winding is on the described second semicircular magnetic material, the two ends of described second coil are electrically connected with one second connector, one second grounded parts is connected electrically on the described second semicircular magnetic material, one encapsulated layer is packaged into an integral body with described second grounded parts, the second semi-ring shape magnetic material, second coil, and described second adapter connector and second grounded parts are exposed to the encapsulated layer outside;
During work, described two parts are lumped together, form a complete circulus.
2, the wide/narrow-band multiplexing coupler that is used for the power line transfer of data according to claim 1 is characterized in that, 1 to the 2 circle coil that described first coil forms for the polytetrafluoroethylene wire coiling.
3, the wide/narrow-band multiplexing coupler that is used for the power line transfer of data according to claim 2 is characterized in that, 2 to the 8 circle coils that described second coil forms for the polytetrafluoroethylene wire coiling.
4, the wide/narrow-band multiplexing coupler that is used for the power line transfer of data according to claim 3 is characterized in that, described magnetic material is Fe-based amorphous magnetic material, cobalt base amorphous material or nano amorphous magnetic material.
5, the wide/narrow-band multiplexing coupler that is used for the power line transfer of data according to claim 4, it is characterized in that, also comprise two U type igelite shells, described igelite shell is with described loop configuration inwall, outer wall and the whole parcel of going to the bottom, the termination of the termination of the joint of the joint of described first connector, second connector, first grounded parts and second grounded parts is exposed to the igelite housing exterior, forms two U fonts.
6, the wide/narrow-band multiplexing coupler that is used for the power line transfer of data according to claim 5 is characterized in that, also comprises a securing member, and it is surrounded the described integral body that is packaged into, in order to keep loop configuration; Described securing member is formed for the stainless steel metal material.
7, according to claim 1 or the 6 described wide/narrow-band multiplexing couplers that are used for the power line transfer of data, it is characterized in that described connector is the BNC connector connector, wherein, described bnc connector and magnetic material do not electrically contact.
8, the wide/narrow-band multiplexing coupler that is used for the power line transfer of data according to claim 1 is characterized in that, the material of described encapsulated layer is an epoxy resin.
9, a kind of processing is used for the method for the wide/narrow-band multiplexing coupler of power line transfer of data, is used for the wide/narrow-band multiplexing coupler of power line transfer of data in order to manufacturing, it is characterized in that,
The magnetic material is arranged to ring-type;
, and described first coil is connected with one first connector around one first coil along its axial rings;
, and described second coil is connected with one second connector around one second coil along its axial rings;
One first grounded parts, one second grounded parts are welded on respectively on the described magnetic material;
With encapsulating material described first grounded parts, second grounded parts and magnetic material, first connector, second connector, first coil, second coil are packaged into an integral body;
One end of described first connector, second connector, first grounded parts and second grounded parts is exposed to the outside;
Be cut into the semi-ring of two symmetries;
And described first connector and first grounded parts are positioned on the semi-ring, and described second connector and second grounded parts are positioned on another semi-ring.
10, processing according to claim 9 is used for the method for the wide/narrow-band multiplexing coupler of power line transfer of data, it is characterized in that, also comprises a dry link, the product after the encapsulation is put into the high temperature drying case carry out drying.
11, processing according to claim 10 is used for the method for the wide/narrow-band multiplexing coupler of power line transfer of data, it is characterized in that, also comprises: a polyvinyl chloride plastic tablet is attached on the otch of described ring, in order to guarantee the air gap alignment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810119492A CN101667488A (en) | 2008-09-01 | 2008-09-01 | Wide/narrow-band multiplexing coupler for power-line data transmission, and machining method thereof |
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| CN200810119492A CN101667488A (en) | 2008-09-01 | 2008-09-01 | Wide/narrow-band multiplexing coupler for power-line data transmission, and machining method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158224A (en) * | 2015-03-26 | 2016-11-23 | 中国科学院宁波材料技术与工程研究所 | A kind of core iron for magnetic device and preparation method thereof |
| TWI565250B (en) * | 2015-08-31 | 2017-01-01 | Amtb Tech | Method and device for maintaining the quality of power line communication carrier |
| CN106506040A (en) * | 2015-09-07 | 2017-03-15 | 光寿科技有限公司 | Keep the method and device of power line communication carrier-quality |
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2008
- 2008-09-01 CN CN200810119492A patent/CN101667488A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158224A (en) * | 2015-03-26 | 2016-11-23 | 中国科学院宁波材料技术与工程研究所 | A kind of core iron for magnetic device and preparation method thereof |
| CN106158224B (en) * | 2015-03-26 | 2018-11-09 | 宁波中科毕普拉斯新材料科技有限公司 | A kind of core iron and preparation method thereof for magnetic device |
| TWI565250B (en) * | 2015-08-31 | 2017-01-01 | Amtb Tech | Method and device for maintaining the quality of power line communication carrier |
| US10153756B2 (en) | 2015-08-31 | 2018-12-11 | AMTB Technology | Method for signal transmissions via a path through which electrical power is transmitted, and signal transmission system |
| CN106506040A (en) * | 2015-09-07 | 2017-03-15 | 光寿科技有限公司 | Keep the method and device of power line communication carrier-quality |
| CN106506040B (en) * | 2015-09-07 | 2019-05-10 | 光寿科技有限公司 | Keep the method and device of power line communication carrier-quality |
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Open date: 20100310 |