CN201608713U - Grounding-lead type combined inductive coupler - Google Patents
Grounding-lead type combined inductive coupler Download PDFInfo
- Publication number
- CN201608713U CN201608713U CN2009201883054U CN200920188305U CN201608713U CN 201608713 U CN201608713 U CN 201608713U CN 2009201883054 U CN2009201883054 U CN 2009201883054U CN 200920188305 U CN200920188305 U CN 200920188305U CN 201608713 U CN201608713 U CN 201608713U
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- inductive coupler
- lead type
- coil
- circuit
- type combined
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Abstract
The utility model discloses a grounding-lead type combined inductive coupler which is characterized in that the inductive coupler and a circuit of an integrally combined filter are connected with each other and assembled integrally. The inductive coupler is formed in the manner that a coupling coil and a demagnetizing coil are respectively wound around a magnet ring combined by a separation body in one direction; the direct coupling target of the inductive coupler includes grounding leads of a power cable shielding layer and a steel belt protecting layer passing through the center hole of the magnet ring; the demagnetizing coil is connected in series with a matched capacitor to form a power-frequency demagnetizing circuit; and the integrally combined filter comprises a series-wound filter circuit and a shunt-wound high-frequency filter circuit, wherein the series-wound filter circuit is formed by connecting an alternating current capacitor and a filter coil in series and is in impedance match with a closed loop of a full-transmission channel, and the shunt-wound high-frequency filter circuit is formed by the alternating current capacitor and a coupler coil connected in parallel. By adopting the inductive coupler, the gain of carrier frequency signal transmission is increased, the field installation is simple and convenient, and the cost of products is greatly reduced.
Description
Technical field
The utility model relates to a kind of inductive coupler of power cable carrier communication, particularly relates to a kind of grounding lead type combined inductive coupler.
Background technology
In recent years, the up-to-date at home and abroad technology of cable carrier wave bonding apparatus had:
1. pouring-in inductive coupler patented technology:
The carrier signal strength of coupling is bigger, but must open the ground lead of cable, and site operation is restricted sometimes;
2. cable plug-in inductive coupler patented technology:
The inductive coupler of cable plug-in is easy for installation at the scene, but it only utilizes cable armor layer as carrier channel, and impedance is bigger, the cable of or armor bad connection comparatively permanent for running time, and signal attenuation is even more serious.
The cable plug-in inductive coupler of 3. changeable whole impedance coupling:
Have changeable whole impedance coupling and make moderate progress, only utilize the limitation of cable armor as carrier channel but still exist in conjunction with the coupling effect of the cable plug-in inductive coupler of filter circuit.
The utility model content
Advantages such as at the problems referred to above, the utility model provides a kind of grounding lead type combined inductive coupler, and it has, and coupling effect is good, and volume is small and exquisite, and the scene is easy for installation.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of grounding lead type combined inductive coupler is characterized in that being connected with the circuit of integrated filter joint and integratedly being assembled by the grounding lead type inductive coupler.
For solving the problems of the technologies described above, technical solutions of the utility model also further comprise:
Described grounding lead type inductive coupler is made of the unidirectional respectively winding on the magnet ring of split combination of coupling coil, anti-magnetized coil, and its direct coupling object is to pass the power cable screen of magnet ring mesopore and the ground lead of steel belt protection layer; Described anti-magnetized coil and matching capacitance are composed in series the power frequency degaussing circuit.
Integrated filter joint comprises that be composed in series with filter coil by first ac capacitor and the series filtering circuit closed-loop path impedance matching of full transmission channel and is made up of the high-frequency filter circuit in parallel that second ac capacitor and coupler coils from parallel connection of coils are formed.
The utility model is compared with the inductive coupler of existing power cable, has following characteristics:
One, direct coupling object of the present utility model are the ground lead of power cable screen and steel belt protection layer, utilize cable shield and steel belt protection layer as carrier channel in parallel simultaneously, make the gain of signal transmission improve, being different from only is the cable plug-in inductive coupler of direct coupling object with cable steel belt protection layer;
Two, direct coupling object of the present utility model can also be the lightning protection shielding conductor of power overhead network, so the utility model can transmit carrier information step by step by the high-tension shielding line;
Three, have the influence of line-frequency induction electric current to the carrier frequency coupled signal in order to eliminate shielding conductor, the utility model is provided with the power frequency degaussing circuit specially on magnet ring;
Four, filter joint in the utility model and direct integrated the connection and assembling of inductive coupler, the CF signal attenuation is littler, and it is more safe and reliable to work;
Five, the utility model and ground lead do not have and are electrically connected, and installation and operation does not all have electric influence to this ground lead, is different from the pouring-in inductive coupler that this ground lead is directly injected the high frequency carrier electric current;
Six, the volume of the integrated combined inductive coupler of the utility model grounding lead type is littler, is convenient to on-the-spot the installation;
Seven, the production material cost of the utility model grounding lead type combined inductive coupler reduces relatively.
Description of drawings
Fig. 1 is the structure principle chart of the utility model grounding lead type combined inductive coupler;
Fig. 2 is the operation schematic diagram of the utility model grounding lead type combined inductive coupler in the medium-pressure power cable carrier system.
Among the figure: 1,21. power cable screens and steel band ground lead; 2. inductive coupler; 3. coupling coil; 4. split magnet ring; 5. anti-magnetized coil; 6. matching capacitance; 7. second ac capacitor; 8. first ac capacitor; 9. filter coil; 10. in conjunction with filter circuit; 11. transmission coil; 12,13. high frequency binding posts; 16,17. lead type combined inductive couplers; 18,19.A, B side carrier terminal equipment; 23,24.A, B side joint place; 25. conductor shielding layer; 26. steel belt protection layer; 27. the underground laying part of power cable;
i28. use the carrier channel total current that flows through ground lead and the earth under the lead type combined inductive coupler;
i29,
i30. use the cable shield carrier wave of lead type combined inductive coupler to divide electric current, cable steel belt protection layer carrier wave to divide electric current.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
As shown in Figure 1, a kind of grounding lead type combined inductive coupler is connected with the circuit 10 of integrated filter joint and is integratedly assembled by grounding lead type inductive coupler 2.In the grounding lead type inductive coupler 2, anti-magnetized coil 5 unidirectional split magnet ring 4 the first half that are wrapped in, and be composed in series the power frequency degaussing circuit with matching capacitance 6, be used to offset the power frequency magnetic potential that power current produced by coupling object.Coupling coil 3 unidirectional split magnet ring 4 the latter halfs that are wrapped in compose in parallel high-frequency circuit in parallel with second ac capacitor 7 in the integrated filter joint 10.The ground lead 1,21 of power cable screen and steel belt protection layer is through in split magnet ring 4 holes.Split magnet ring 4 comprises the split magnetic core of circle, rectangle or polygonal shape, and is surrounded by its magnetic circuit that forms ground lead or shielding conductor.
Integrated in conjunction with in the filter circuit 10, impedance parameter according to the full transmission channel of the carrier wave closed-loop path of prior measurement, configuration is made up of and the series filtering circuit of full transmission channel closed-loop path impedance phase coupling and the high-frequency filter circuit of being made up of second ac capacitor 7 and coupler coil 3 in parallel first ac capacitor 8 and filter coil 9, and with itself and 3 integrated connections and assembling of inductive coupler coil, with the functional requirement of satisfied raising CF signal intensity transmission and the requirement of volume miniaturization, with filter coil 9 corresponding transmission coil 11 two end terminals 12,13 connect the high frequency communication cable that leads to carrier terminal equipment respectively.
As shown in Figure 2; the ground lead 1,21 of power cable screen and steel belt protection layer comprises that by the shielding conductor 25 of its power cable that is connected and the steel belt protection layer 26 in parallel with 25 underground laying part 27, earth point 23,24 and the earth of cable forms the full transmission channel of carrier wave closed-loop path.The carrier current signal that carrier terminal equipment 18,19 is sent is directly coupled on the local terminal ground lead 1,21 that is clamped by it through lead type inductive coupler 16,17.In the closed-loop path of this ground lead; form the carrier channel total current i28 of ground lead and the earth; comprise cable shield carrier wave branch current i 29 and cable steel belt protection layer carrier wave branch current i 30; reach the ground lead 21,1 of this cable other end; be coupled to the lead type inductive coupler 17,16 of opposite end again, then carrier signal reached the carrier terminal equipment 19,18 of opposite end.The inductive coupler of this kind technical scheme not only can satisfy the requirement of power cable carrier communication, and can obviously reduce the volume of coupler.
During normal the operation, the shielding conductor of power cable may produce induced current, for eliminate the electromotive force that this electric current magnetic potential is inducted on coupling coil, anti-magnetized coil 5 of the present utility model is composed in series the power frequency band-pass circuit with matching capacitance 6, the power current of inducting in this loop can most of power frequency magnetic potential of offsetting by shielding conductor that power current produced, thereby restriction power frequency electromotive force is to the congestion affects of CF signal.
In the insulation of power cable in case under the malfunction of damaging; the ground lead of its screen and steel belt protection layer may flow through fault current; at this moment, the saturated design of the overcurrent of the grounding lead type inductive coupler 2 line-frequency induction electromotive force that can avoid or reduce to be harmful to.
Claims (7)
1. grounding lead type combined inductive coupler is characterized in that: be connected with the circuit (10) of integrated filter joint and integratedly assembled by grounding lead type inductive coupler (2).
2. grounding lead type combined inductive coupler according to claim 1; it is characterized in that: described grounding lead type inductive coupler (2) is gone up respectively unidirectional winding by coupling coil (3), anti-magnetized coil (5) at split magnet ring (4) and is constituted, and its direct coupling object is to pass the power cable screen of magnet ring mesopore and the ground lead of steel belt protection layer (1 or 21).
3. grounding lead type combined inductive coupler according to claim 2 is characterized in that: described anti-magnetized coil (5) is composed in series the power frequency degaussing circuit with matching capacitance (6).
4. grounding lead type combined inductive coupler according to claim 1 is characterized in that: described integrated filter joint comprises series filtering circuit and the high-frequency filter circuit in parallel with full transmission channel closed-loop path impedance matching.
5. grounding lead type combined inductive coupler according to claim 4 is characterized in that: described series filtering circuit is composed in series by first ac capacitor (8) and filter coil (9).
6. grounding lead type combined inductive coupler according to claim 5 is characterized in that: described filter circuit in parallel is composed in parallel by second ac capacitor (7) and coupler coil (3).
7. grounding lead type combined inductive coupler according to claim 2 is characterized in that: described split magnet ring (4) comprises the split magnetic core of circle, rectangle or polygonal shape, and is surrounded by its magnetic circuit that forms ground lead or shielding conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201883054U CN201608713U (en) | 2009-10-16 | 2009-10-16 | Grounding-lead type combined inductive coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201883054U CN201608713U (en) | 2009-10-16 | 2009-10-16 | Grounding-lead type combined inductive coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608713U true CN201608713U (en) | 2010-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201883054U Expired - Fee Related CN201608713U (en) | 2009-10-16 | 2009-10-16 | Grounding-lead type combined inductive coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201608713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694809B (en) * | 2009-10-16 | 2013-02-06 | 深圳市金宏威技术股份有限公司 | Grounding lead type combined inductive coupler |
-
2009
- 2009-10-16 CN CN2009201883054U patent/CN201608713U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694809B (en) * | 2009-10-16 | 2013-02-06 | 深圳市金宏威技术股份有限公司 | Grounding lead type combined inductive coupler |
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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 |
Owner name: SHENZHEN GOLDEN HIGHWAY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN GOLDEN HIGHWAY INDUSTRIAL DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong city of Shenzhen province Nanshan District high tech Zone nine new South Road No. 9 Business Park No. 8 Building 7 layer Patentee after: Shenzhen Jinhongwei Technology Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District high tech Zone nine new South Road No. 9 Business Park No. 8 Building 7 layer Patentee before: Shenzhen Golden Highway Industry Development Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Grounding lead type combined inductive coupler Effective date of registration: 20130122 Granted publication date: 20101013 Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd. Pledgor: Shenzhen Jinhongwei Technology Co.,Ltd. Registration number: 2013990000047 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140331 Granted publication date: 20101013 Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd. Pledgor: Shenzhen Jinhongwei Technology Co.,Ltd. Registration number: 2013990000047 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Grounding lead type combined inductive coupler Effective date of registration: 20140401 Granted publication date: 20101013 Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd. Pledgor: Shenzhen Jinhongwei Technology Co.,Ltd. Registration number: 2014990000218 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150701 Granted publication date: 20101013 Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd. Pledgor: Shenzhen Jinhongwei Technology Co.,Ltd. Registration number: 2014990000218 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Grounding lead type combined inductive coupler Effective date of registration: 20150707 Granted publication date: 20101013 Pledgee: Shenzhen SME financing Company limited by guarantee Pledgor: Shenzhen Jinhongwei Technology Co.,Ltd. Registration number: 2015990000542 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong city of Shenzhen province Nanshan District South Road No. 9 nine Wei new software park building 8 floor 701-712 room 7 Patentee after: Shenzhen Jinhongwei Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District high tech Zone nine new South Road No. 9 Business Park No. 8 Building 7 layer Patentee before: Shenzhen Jinhongwei Technology Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20161016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |