CN201726394U - Coupling device for data transmission on power line - Google Patents
Coupling device for data transmission on power line Download PDFInfo
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- CN201726394U CN201726394U CN2010201931559U CN201020193155U CN201726394U CN 201726394 U CN201726394 U CN 201726394U CN 2010201931559 U CN2010201931559 U CN 2010201931559U CN 201020193155 U CN201020193155 U CN 201020193155U CN 201726394 U CN201726394 U CN 201726394U
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- coupling unit
- magnetic coupling
- power line
- carrier wave
- transmitting data
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Abstract
The utility model relates to a coupling device for data transmission on a power line, which comprises a carrier signal power transformer, a coupling capacitance and a coupling unit, wherein the primary of the transformer is connected with a carrier wave input or output end of a data communication device; the coupling capacitance is connected with the secondary of the transformer and forms a signal loop; the coupling unit couples the signal of the secondary of the transformer to the phase line of the power line; the phase line of the power line, one end of the secondary of the transformer and the connecting line of the coupling capacitance pass through the coupling unit in parallel. The coupling device for data transmission on the power line has the beneficial effects of having low cost, being used on a high voltage power line for transmitting data on the power line.
Description
Technical field
The utility model relates to transfer of data, more particularly, relates to a kind of coupling device that is used at the power line transmitting data.
Background technology
Utilize the power line transmission signal, obtained utilization comparatively widely.Be based on the transfer of data of arrowband in the past mostly, about the about 100K-300K of bandwidth of its perfect condition, the speed of transfer of data is slower, does not satisfy present requirement, so the application of power carrier transmission data has been subjected to certain restriction.Improvement to power carrier transmission data requires bandwidth need reach 200M, and transmission range has 200 meters, but how this broadband signal is transferred on the power line, still adopts existing technology usually, is transferred to power line by capacitor exactly.This sample loading mode had both increased cost (because will consider the withstand voltage and the quality factor thereof of electric capacity), use and inconvenience, its assembling is greatly limited, the voltage range of using can only be worked under the low-voltage electrical network, can not satisfy the requirement of carrying out the power carrier signal transmission on high-voltage power line.Simultaneously, adopt capacitive coupling of the prior art, because its electric capacity is connected across zero, between the phase line, certain danger is arranged also by transformer secondary output, under high pressure punctures as electric capacity, be easy to system charged, cause personal safety and property loss, because electric capacity directly is connected on the electric power line end, a lot of interference signals is easy to seal in the circuit system on the power line again, it is undesired that the lighter influences the work of system, and the situation of personal safety can appear jeopardizing in weight person.
The utility model content
The technical problems to be solved in the utility model is, at the above-mentioned cost height of prior art, be unfavorable for the defective on high-voltage power line, used, provide a kind of cost low, can on high-voltage power line, use be used for coupling device at the power line transmitting data.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of coupling device that is used at the power line transmitting data, comprise the carrier signal power transformer, described primary inputs or outputs end with the carrier wave of data communication equipment and is connected, comprise also with described transformer secondary output coupling capacitance that be connected and that form signal circuit and with the signal of described transformer secondary output and be coupled to the coupling unit of described power line phase line that the line of described power line phase line and described transformer secondary output one end and coupling capacitance is parallel to pass described coupling unit.
At the coupling device that is used at the power line transmitting data described in the utility model, described coupling unit comprises the first magnetic coupling unit and the second magnetic coupling unit that merges the described coupling device of formation, respectively is provided with on the contacted surface in the described first magnetic coupling unit and the second magnetic coupling unit and forms groove UNICOM's enclosure space, that connect the axis direction of the described first magnetic coupling unit and the second magnetic coupling unit when it merges.
At the coupling device that is used at the power line transmitting data described in the utility model, the shape of the described first magnetic coupling unit and the second magnetic coupling unit comprises half garden ring, and described coupling unit shape comprises the annulus that is got by two semicircular ring merging.
At the coupling device that is used at the power line transmitting data described in the utility model, the groove of the described first magnetic coupling unit and the second magnetic coupling unit is positioned at the home position of its semicircular ring, described groove be shaped as semicircle.
At the coupling device that is used at the power line transmitting data described in the utility model, comprise a plurality of projectioies on the described first magnetic coupling unit and the anchor ring that the described second magnetic coupling unit contacts, described second magnetic coupling unit and described protruding correspondence position are provided with and the suitable groove of described projection.
At the coupling device that is used at the power line transmitting data described in the utility model, also comprise being used to fetter the described first magnetic coupling unit and the described second magnetic coupling unit and it being pressed the plastic buckle of applying.
At the coupling device that is used at the power line transmitting data described in the utility model, the axial direction length of the described first magnetic coupling unit and the second magnetic coupling unit is 1-5 centimetre, and its peripheral radius is 1-3 centimetre, and the radius of its groove is 0.5-2 centimetre.
At the coupling device that is used at the power line transmitting data described in the utility model, the carrier wave input of described data communication equipment comprises carrier wave input anode and carrier wave input negative terminal; The carrier wave output of described data communication equipment comprises carrier wave output plus terminal and carrier wave output negative terminal; Described primary comprises two terminals and a centre cap, described centre cap is electrically connected on described carrier wave input negative terminal and carrier wave output negative terminal, and described two terminals are connected to the carrier wave input anode and the carrier wave output plus terminal of described data communication equipment.
Implement the coupling device that is used at the power line transmitting data of the present utility model, has following beneficial effect: because the secondary and power line of transformer does not have direct annexation, but be sent to data on the power line or by receiving on the power line by coupling, therefore, do not need the higher coupling capacitance of cost, can not occur adjusting coupling device even can not transmitting data conditions safely, easily with voltage on the power line is different yet, therefore, its cost low, being used for of can on high-voltage power line, using at the power line transmitting data.
Description of drawings
Fig. 1 is that the utility model is used for the structural representation at the coupling device embodiment of power line transmitting data;
Fig. 2 is the structural representation of coupling unit among the described embodiment.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further.
As shown in Figure 1, be used for coupling device embodiment at the power line transmitting data at the utility model, this coupling device comprises carrier signal power transformer (comprising elementary 13 and secondary 14), coupling capacitance 15 and coupling unit 12.Wherein, elementary 13 input or output end with the carrier wave of data communication equipment is connected, secondary 14 comprise two terminals, one of them is connected with an end of coupling capacitance 15, the other end of coupling capacitance 15 is connected on another terminal of secondary 14, make coupling capacitance 15 form a signal circuit with secondary 14, simultaneously, a phase line 11 of the line of this signal circuit and power line (wish send to carrier wave it on or that phase line of reception carrier) from it walks abreast by passing through in the coupling unit 12, makes that carrier signal can be by this coupling unit 12 by being coupled on the above-mentioned phase line 11 or being coupled on the above-mentioned phase line 11.
In the present embodiment, as shown in Figure 2, coupling unit 14 comprises that the first magnetic coupling unit 21 that merge to form coupling unit 14 and 22, the first magnetic coupling unit 21, the second magnetic coupling unit and 22 contacted surfaces, the second magnetic coupling unit are provided with the groove (211 among Fig. 2 and 221) in a space of formation when the first magnetic coupling unit 21 and the second magnetic coupling unit 22 combine; This space is along the whole first magnetic coupling unit 21 of the axial perforation of the above-mentioned first magnetic coupling unit 21 and the second magnetic coupling unit 22 and the second magnetic coupling unit 22, simultaneously, this space be communicated as one by two grooves and sealing.Particularly, the above-mentioned first magnetic coupling unit 21 and the second magnetic coupling unit 22 merge and form coupling unit 14, coupling unit 14 be shaped as a column, and be communicated with the axis direction that column is run through in formed space, and sealing by above-mentioned two grooves.As shown in Figure 2, in the present embodiment, the first magnetic coupling unit 21 and the second magnetic coupling unit 22 to be shaped as it be not the half garden annulated column that the one side of cambered surface is provided with groove, therefore, coupling unit 14 shapes be exactly by two semicircle annulated columns merge and annulus post (being the cylinder of hollow).In other embodiments, coupling unit 14 shapes can not be columniform also, for example, also can be square, so long as the magnet ring of a sealing and its axially have through hole can make the line in above-mentioned phase line 11 and secondary 14 loops by getting final product.
In the present embodiment, the groove of the first magnetic coupling unit 21 and the second magnetic coupling unit 22 is positioned at the home position of its semicircular ring, described groove be shaped as semicircle.In other words, when above-mentioned first magnetic coupling unit 21 and the second magnetic coupling unit, 22 merging formation coupling units 14, this coupling unit 14 is cylinders, and the above-mentioned space that is formed by groove (211,221) is one and the body concentric axial through hole of this cylinder.This through hole is slapped together by above-mentioned two semicircular grooves.In the present embodiment, comprise a plurality of protruding 212 (referring to Fig. 2) on the first magnetic coupling unit 21 and the anchor ring that the second magnetic coupling unit 22 contacts, the second magnetic coupling unit 22 and above-mentioned protruding 212 correspondence positions are provided with the grooves 222 suitable with projection 212.With above-mentioned first magnetic coupling unit 21 and 22 merging of the second magnetic coupling unit time, above-mentioned protruding 212 enter in the above-mentioned groove 222.Such setting not only makes when above-mentioned two parts merge the location be more prone to, in conjunction with more firm, simultaneously, make that also the coupling effect of this coupling unit 14 is better, because such this coupling unit 14 that is arranged so that has less leakage field phenomenon.In other embodiments, also can above-mentioned projection and groove or use be the edge (relatively, the edge of another magnetic coupling unit will with this Curve Matching) of a curve.
In the present embodiment, in order to make the tightr of above-mentioned first magnetic coupling unit 21 and 22 combinations of the second magnetic coupling unit, take into account problem easy for installation simultaneously, this coupling device also comprises and is used to fetter the first magnetic coupling unit 21 and the second magnetic coupling unit 22 and it is pressed the plastic buckle of applying.This buckle is further fitted win magnetic coupling unit 21 and the second magnetic coupling unit 22, makes that not only its installation is more firm, makes its leakage field further reduce simultaneously, thereby strengthens the efficient of coupling.
In addition, in the present embodiment, the axial direction length of the first magnetic coupling unit 21 and the second magnetic coupling unit 22 is 3 centimetres, and its peripheral radius is 2 centimetres, and the radius of its groove is 1 centimetre.What deserves to be mentioned is, generally speaking, in other embodiments, the length of above-mentioned axial direction can be selected between 1-5 centimetre, its peripheral radius can be selected between 1-3 centimetre, and the radius of its groove can be selected between 0.5 to 2 centimetre, and above-mentioned size can satisfy common demand basically; Under some specific occasions, for example, has higher voltage on the power line, when therefore its power line is thick, the size of the above-mentioned first magnetic coupling unit 21 and the second magnetic coupling unit 22 also can not be subjected to the restriction of above-mentioned size, is as the criterion but pass therethrough with the line that can hold power line and secondary 14 loops after its combination.
In the present embodiment, the carrier wave input of above-mentioned data communication equipment and carrier wave output are two, i.e. a carrier wave input anode, a carrier wave input negative terminal, a carrier wave output plus terminal, a carrier wave output negative terminal (all not shown among the figure).Primary 13 comprises two terminals and a centre cap, wherein, above-mentioned centre cap is electrically connected with above-mentioned carrier wave input negative terminal and carrier wave output negative terminal, and in the present embodiment promptly, centre cap is connected with carrier wave input negative terminal with above-mentioned carrier wave output negative terminal by electric capacity respectively; And two terminals of primary 13 are connected to the carrier wave input anode and the carrier wave output plus terminal of above-mentioned data communication equipment, equally also connect by electric capacity.That is to say that in the present embodiment, a coupling device promptly can be realized uploading and downloading of carrier wave.The emission of carrier signal all realizes by an above-mentioned transformer with reception.Certainly, in other embodiments, the uploading and downloading separately of carrier wave can be realized by different transformers and coupling device also that though lower and disturb lessly to the requirement of circuit like this, cost is wanted height than present embodiment.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (8)
1. coupling device that is used at the power line transmitting data, comprise the carrier signal power transformer, described primary inputs or outputs end with the carrier wave of data communication equipment and is connected, it is characterized in that, comprise also with described transformer secondary output coupling capacitance that be connected and that form signal circuit and with the signal of described transformer secondary output and be coupled to the coupling unit of described power line phase line that the line of described power line phase line and described transformer secondary output one end and coupling capacitance is parallel to pass described coupling unit.
2. the coupling device that is used at the power line transmitting data according to claim 1, it is characterized in that, described coupling unit comprises the first magnetic coupling unit and the second magnetic coupling unit that merges the described coupling device of formation, respectively is provided with on the contacted surface in the described first magnetic coupling unit and the second magnetic coupling unit and forms groove UNICOM's enclosure space, that connect the axis direction of the described first magnetic coupling unit and the second magnetic coupling unit when it merges.
3. the coupling device that is used at the power line transmitting data according to claim 2, it is characterized in that, the shape of the described first magnetic coupling unit and the second magnetic coupling unit comprises half garden ring, and described coupling unit shape comprises the annulus that is got by two semicircular ring merging.
4. the coupling device that is used at the power line transmitting data according to claim 3 is characterized in that, the groove of the described first magnetic coupling unit and the second magnetic coupling unit is positioned at the home position of its semicircular ring, described groove be shaped as semicircle.
5. the coupling device that is used at the power line transmitting data according to claim 4, it is characterized in that, comprise a plurality of projectioies on the described first magnetic coupling unit and the anchor ring that the described second magnetic coupling unit contacts, described second magnetic coupling unit and described protruding correspondence position are provided with and the suitable groove of described projection.
6. the coupling device that is used at the power line transmitting data according to claim 5 is characterized in that, also comprises being used to fetter the described first magnetic coupling unit and the described second magnetic coupling unit and it being pressed the plastic buckle of applying.
7. the coupling device that is used at the power line transmitting data according to claim 6, it is characterized in that, the axial direction length of the described first magnetic coupling unit and the second magnetic coupling unit is 1-5 centimetre, and its peripheral radius is 1-3 centimetre, and the radius of its groove is 0.5-2 centimetre.
8. according to any described coupling device that is used at the power line transmitting data of claim 1-7, it is characterized in that the carrier wave input of described data communication equipment comprises carrier wave input anode and carrier wave input negative terminal; The carrier wave output of described data communication equipment comprises carrier wave output plus terminal and carrier wave output negative terminal; Described primary comprises two terminals and a centre cap, described centre cap is electrically connected on described carrier wave input negative terminal and carrier wave output negative terminal, and described two terminals are connected to the carrier wave input anode and the carrier wave output plus terminal of described data communication equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201931559U CN201726394U (en) | 2010-05-11 | 2010-05-11 | Coupling device for data transmission on power line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201931559U CN201726394U (en) | 2010-05-11 | 2010-05-11 | Coupling device for data transmission on power line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201726394U true CN201726394U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201931559U Expired - Lifetime CN201726394U (en) | 2010-05-11 | 2010-05-11 | Coupling device for data transmission on power line |
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| Country | Link |
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| CN (1) | CN201726394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879811A (en) * | 2012-09-19 | 2013-01-16 | 威海双丰物探设备股份有限公司 | Marsh geophone |
-
2010
- 2010-05-11 CN CN2010201931559U patent/CN201726394U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879811A (en) * | 2012-09-19 | 2013-01-16 | 威海双丰物探设备股份有限公司 | Marsh geophone |
| CN102879811B (en) * | 2012-09-19 | 2015-04-22 | 威海双丰物探设备股份有限公司 | Marsh geophone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518048 Guangdong, Shenzhen, Shennan Road, Astronautics Hotel, block B, building 5, building 4019 Patentee after: Aerospace Science & Industry Shenzhen (Group) Co., Ltd. Address before: 518000, Shenzhen, Guangdong province Futian District Mei Mei Road, Huatai Building, west block, 7 floor Patentee before: Aerospace Science & Industry Shenzhen (Group) Co., Ltd. Address after: 518048 Guangdong, Shenzhen, Shennan Road, Astronautics Hotel, block B, building 5, building 4019 Patentee after: Aerospace Science & Industry Shenzhen (Group) Co., Ltd. Address before: 518000, Shenzhen, Guangdong province Futian District Mei Mei Road, Huatai Building, west block, 7 floor Patentee before: Aerospace Science & Industry Shenzhen (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |