CN203708245U - Electric power carrier multiphase signal coupler used for civil air defense - Google Patents
Electric power carrier multiphase signal coupler used for civil air defense Download PDFInfo
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- CN203708245U CN203708245U CN201420043334.2U CN201420043334U CN203708245U CN 203708245 U CN203708245 U CN 203708245U CN 201420043334 U CN201420043334 U CN 201420043334U CN 203708245 U CN203708245 U CN 203708245U
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- interface
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- air defense
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- phase electric
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Abstract
An electric power carrier multiphase signal coupler used for a civil air defense belongs to the civil air defense engineering technology field. The coupler comprises a circuit board (1), a three-phase electric interface (2A), a three-phase electric N pole interface (2B), a fuse (3), a piezoresistor (4), an RCL circuit (5), a capacitor (6) and a transformer (7), wherein the three-phase electric interface (2A), the three-phase electric N pole interface (2B), the fuse (3), the piezoresistor (4), the RCL circuit (5), the capacitor (6) and the transformer (7) are arranged on the circuit board (1). The three-phase electric interface (2A) and the three-phase electric N pole interface (2B) are connected to a power line. The RCL circuit (5) is connected to the fuse (3). One end of the piezoresistor (4) is connected to the fuse (3) and the other end is connected to the three-phase electric N pole interface (2B). The three-phase RCL circuit (5) and the capacitor (6) are connected in a star type mode. The transformer (7) is connected to the capacitor (6) and the three-phase electric N pole interface (2B) respectively. The coupler of the utility model possesses the following advantages that the circuit is designed to be simple and compact; occupation space is small and so on. Power line carrier communication can be realized. A communication coupling problem of multichannel independent power supply systems in civil air defense engineering can be effectively solved.
Description
Technical field
The utility model belongs to Technology for Civil Air Defence Projects field, particularly relates to a kind of people's air defense power carrier polyphase signa coupler, is applied to civil air defense constructions and installations field, realizes the Long-distance Control of power carrier equipment across switch/transformer.
Background technology
Power line carrier, PLC is unique a kind of wire communication mode that existing circuit is reconstructed of not needing in the communication network development, and from transmission range and transmission rate, with respect to current the commonly used wireless greater advantage that also has.To not thering is other wiring or the place optimal selection especially that wiring is inconvenient, electromagnetic interference is serious.
Civil air defense constructions and installations is often made up of many subsystems, and the isomerism existing between subsystem causes traditional twisted-pair feeder all subsystems once cannot be integrated.But, between each subsystem, be to have power line to interconnect, and do not have isolating transformer equipment between power line under same people's air defense command post.Therefore,, for the civil air defense constructions and installations inconvenient environment that connects up like this, power line carrier, PLC is due to without extra wiring thereby have innate advantage with respect to other schemes.But still there is the problem that needs solution in civil air defense constructions and installations power line carrier, PLC, civil air defense constructions and installations generally adopts multiple power supplies system, separate between each power-supply system, cannot carry out data communication.
Summary of the invention
The purpose of this utility model is to provide a kind of people's air defense power carrier polyphase signa coupler, overcome existing electric carrier apparatus and cannot carry out the deficiency across the communication of switch/transformer, the network signal of the control end under different electrical power and controlled terminal is respectively coupled, to reach the object across power-supply system communication, effectively solve the communicative couplings problem of the multichannel independent electric power supply of civil air defense constructions and installations.
The utility model comprises circuit board 1 and is located at three-phase electricity interface 2A, three-phase electricity N utmost point interface 2B, fuse 3, piezo-resistance 4, RCL circuit 5, electric capacity 6, the transformer 7 on circuit board 1; Three-phase electricity interface 2A, three-phase electricity N utmost point interface 2B are connected with power line, RCL circuit 5 is connected with fuse 3, piezo-resistance 4 one end are connected with fuse 3, the other end is connected with three-phase electricity N utmost point interface 2B, three-phase RCL circuit 5 adopts star-like connection with electric capacity 6, and transformer 7 is connected with electric capacity 6 and three-phase electricity N utmost point interface 2B respectively.
The power frequency component of the existing 50Hz of power line that three-phase electricity interface 2 connects, also there is the high-frequency carrier signal of frequency range at 125-140KHz, in arbitrary electricity mutually, carry high-frequency carrier signal, can receive high-frequency carrier signal at any three-phase of all the other two-phases and the transformer other end, polyphase signa coupler can solve the each alternate communicative couplings problem of two-way independent electric power supply.
RCL circuit 5 is resonance under the frequency of high-frequency carrier signal, and high-frequency carrier signal is approximate undampedly by RCL circuit 5.
The logical resistance direct current that exchanges of capacitor 6, plays filter action to the direct voltage that may exist in signal.Transformer 7 forms LC series circuit with capacitor 6, under high-frequency carrier signal frequency, and series resonance, impedance is minimum.
In this polyphase signa coupler based on power carrier of the present utility model, the two-way three-phase electricity interface of coupler connects respectively two-way independent current source, while carrying high-frequency carrier signal in arbitrary phase power current, can in the three-phase of all the other two-phases or opposite side power-supply system, receive high-frequency carrier signal.Gather or control command when the controller of a side power-supply system sends, can control signal be sent to opposite side power-supply system by coupler, thereby the equipment under opposite side power-supply system is monitored and controlled.
Wherein in RCL circuit, adopt RC parallel connection, then be connected with the mode of L series connection, R adopts large resistance, and under high-frequency carrier signal, RCL circuit is similar to resonant circuit, and overall impedance value is very little, and high-frequency signal seldom passes through to loss.The logical resistance direct current that exchanges of capacitor, plays filter action to the direct voltage that may exist in signal.Transformer and capacitor composition LC series circuit, under high-frequency carrier signal frequency, series resonance, impedance is minimum.
The beneficial effects of the utility model are, can in multiple power supplies electric power system, realize across the communication of switch/transformer, have solved the signal coupling problem of multiple power supplies electric power system.There is design circuit simple, compactness, the advantage such as take up room little, can realize electric line carrier communication, can effectively solve the communicative couplings problem of multichannel independent electric power supply in civil air defense constructions and installations.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.Wherein, circuit board 1, three-phase electricity interface 2A, three-phase electricity N utmost point interface 2B, fuse 3, piezo-resistance 4, RCL circuit 5, electric capacity 6, transformer 7.
Embodiment
The utility model comprises circuit board 1 and is located at three-phase electricity interface 2A, three-phase electricity N utmost point interface 2B, fuse 3, piezo-resistance 4, RCL circuit 5, electric capacity 6, the transformer 7 on circuit board 1; Three-phase electricity interface 2A, three-phase electricity N utmost point interface 2B are connected with power line, RCL circuit 5 is connected with fuse 3, piezo-resistance 4 one end are connected with fuse 3, the other end is connected with three-phase electricity N utmost point interface 2B, three-phase RCL circuit 5 adopts star-like connection with electric capacity 6, and transformer 7 is connected with electric capacity 6 and three-phase electricity N utmost point interface 2B respectively.High-frequency carrier signal is the arbitrary input mutually by a side ABC with power frequency component, enters RCL circuit 5 through overcurrent fuse 3, and piezo-resistance 4 is connected in parallel on the two ends of fuse and three-phase electricity N utmost point interface 2B, and high voltage possible in circuit is played a protective role.RCL circuit is resonance under the frequency of high-frequency signal, and impedance is very little, and high-frequency signal is substantially undamped, and the power frequency 50Hz RCL circuit impedance of flowing through is larger, has obvious decay.When signal process capacitor 6, capacitor has logical interchange, and the characteristic of resistance direct current, can stop the d. c. voltage signal carrying in signal.The inductance of transformer 7 and capacitor composition LC series circuit, under high-frequency carrier signal frequency, LC series circuit resonance, resistance value is very little, to high-frequency carrier signal without blocking-up, power frequency component cannot pass through simultaneously, and high-frequency carrier signal can be transferred to opposite side power-supply system from a side power-supply system, has realized the communicative couplings of multiple power supplies electric power system.
Claims (3)
1. a power carrier polyphase signa coupler for people's air defense, it is characterized in that, comprise: circuit board (1) and be located at the three-phase electricity interface (2A) on circuit board (1), three-phase electricity N utmost point interface (2B), fuse (3), piezo-resistance (4), RCL circuit (5), electric capacity (6), transformer (7), three-phase electricity interface (2A) three-phase electricity N utmost point interface (2B) is connected with power line, RCL circuit (5) is connected with fuse (3), piezo-resistance (4) one end is connected with fuse (3), the other end is connected with three-phase electricity N utmost point interface (2B), three-phase RCL circuit (5) adopts star-like connection with electric capacity (6), transformer (7) is connected with electric capacity (6) and three-phase electricity N utmost point interface (2B) respectively.
2. power carrier polyphase signa coupler for people's air defense according to claim 1, is characterized in that: the power frequency component of the existing 50Hz of power line that three-phase electricity interface (2) connects, also has the high-frequency carrier signal of frequency range at 125-140KHz.
3. power carrier polyphase signa coupler for people's air defense according to claim 1, is characterized in that: transformer (7) and capacitor (6) composition LC series circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420043334.2U CN203708245U (en) | 2014-01-23 | 2014-01-23 | Electric power carrier multiphase signal coupler used for civil air defense |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420043334.2U CN203708245U (en) | 2014-01-23 | 2014-01-23 | Electric power carrier multiphase signal coupler used for civil air defense |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203708245U true CN203708245U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420043334.2U Expired - Fee Related CN203708245U (en) | 2014-01-23 | 2014-01-23 | Electric power carrier multiphase signal coupler used for civil air defense |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203708245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646030A (en) * | 2019-07-08 | 2020-01-03 | 苏宁云计算有限公司 | Monitoring method and system for maintenance of civil air defense equipment |
-
2014
- 2014-01-23 CN CN201420043334.2U patent/CN203708245U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646030A (en) * | 2019-07-08 | 2020-01-03 | 苏宁云计算有限公司 | Monitoring method and system for maintenance of civil air defense equipment |
| WO2021004276A1 (en) * | 2019-07-08 | 2021-01-14 | 苏宁云计算有限公司 | Monitoring method and system for civil air defense device maintenance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140709 Termination date: 20150123 |
|
| EXPY | Termination of patent right or utility model |