CN208128228U - A kind of device of Conducted Radio Frequency Immunity coupling uncoupling network - Google Patents

A kind of device of Conducted Radio Frequency Immunity coupling uncoupling network Download PDF

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Publication number
CN208128228U
CN208128228U CN201721062249.0U CN201721062249U CN208128228U CN 208128228 U CN208128228 U CN 208128228U CN 201721062249 U CN201721062249 U CN 201721062249U CN 208128228 U CN208128228 U CN 208128228U
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capacitor
port
inductance
coil
magnet ring
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徐飞
赵大勇
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SHANGHAI LINGSHI ELECTROMAGNETIC TECHNOLOGY CO LTD
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SHANGHAI LINGSHI ELECTROMAGNETIC TECHNOLOGY CO LTD
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Abstract

The utility model discloses a kind of devices of Conducted Radio Frequency Immunity coupling uncoupling network, including radio-frequency maser, coupling unit and decoupling part, the coupling unit includes inductance, resistance and capacitor, the inductance, resistance and capacitor are electrically connected by conducting wire, the decoupling part include inductance, common mode inductance and to ground capacitor, the common mode inductance includes coil and magnet ring, the coil uniform winding is on the surface of magnet ring, the left side of the decoupling part is equipped with the port EUT, and the right side of the decoupling part is equipped with the port AE.By being equipped with common mode inductance in the device that Conducted Radio Frequency Immunity couples uncoupling network and arriving ground capacitor, common mode inductance is set to constitute LC filter circuit with to ground capacitor, become magnetic strength and thermal energy convenient for preventing to absorb most of interference signal by inductance, remaining major part, to ground, effectively reduces the interference of Conducted Radio Frequency by capacitive bypass.

Description

A kind of device of Conducted Radio Frequency Immunity coupling uncoupling network
Technical field
The utility model relates to network transmission technology field, specially a kind of Conducted Radio Frequency Immunity couples uncoupling network Device.
Background technique
Existing relevant criterion and technological document, such as:State's net company standard Q/GDW1354, IEC17215 standard, R46 state Border suggestion and EN50470 standard etc. only focus on Conducted Radio Frequency disturbance jamming immunity test of the intelligent electric meter more than 150kHz frequency, It is inadequate that influence concern to electric energy meter is harassed to the Conducted Radio Frequency of 150kHz and following frequencies.However, with photovoltaic DC-to-AC converter and The extensive use of Switching Power Supply, resulting frequency range are that electric energy meter caused by 2kHz-150kHz symmetrical current conducts The problem of harassing and wrecking, is more and more.Currently, poor and inconvenient to use for the jamproof device effect of Conducted Radio Frequency.
Utility model content
The purpose of this utility model is to provide a kind of devices of Conducted Radio Frequency Immunity coupling uncoupling network, by making Common mode inductance constitutes LC filter circuit with to ground capacitor, becomes magnetic strength convenient for preventing to absorb most of interference signal by inductance And thermal energy, remaining major part, to ground, effectively reduce the interference of Conducted Radio Frequency by capacitive bypass.
To achieve the above object, the utility model provides the following technical solutions:A kind of Conducted Radio Frequency Immunity coupling decoupling Close the device of network, including radio-frequency maser, coupling unit and decoupling part, it is characterised in that:The coupling unit includes coupling electricity Sense, resistance and capacitor, the coupling inductance, resistance and capacitor are electrically connected by conducting wire, and the decoupling part includes decoupling electricity Sense, common mode inductance and to ground capacitor, the common mode inductance includes coil and magnet ring, table of the coil uniform winding in magnet ring Face, the left side of the decoupling part are equipped with the port EUT, and the right side of the decoupling part is equipped with the port AE.
Preferably, the end of the radio-frequency maser is connected with inductance L1, is connected with resistance below the inductance L1, from left to right Once it is first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4, has been sequentially connected in series electricity below the resistance Hold, the capacitor is followed successively by first capacitor C1, the second capacitor C2, third capacitor C3 and the 4th capacitor C4.
Preferably, first resistor R1 series connection first capacitor C1 couples a signal to the N-terminal of the port EUT, and described second The second capacitor C2 of resistance R2 series connection couples a signal to the end L3 of the port EUT, and the 3rd resistor R3 and third capacitor C3 will believe Number it is coupled to the end L2 of the port EUT, the 4th resistance R 4 and the 4th capacitor C4 couples a signal to the end L1 of the port EUT.
Preferably, the end L1 of the port EUT is wound on magnet ring by the way that coil is smooth and is connected to the end AE L1, institute State L1 end-coil and magnet ring coiling and form common mode inductance L4, the end L2 of the port EUT by coil it is smooth be wound on magnet ring The end AE L2 is gone up and is connected to, the L2 end-coil and magnet ring coiling form common mode inductance L5, and the end L3 of the port EUT passes through line Enclose it is smooth be wound on magnet ring and be connected to the end AE L3, the L3 end-coil and magnet ring coiling form common mode inductance L6, described The N-terminal of the port EUT by coil it is smooth be wound on magnet ring and be connected to the end AE N, the N-terminal coil is formed with magnet ring coiling Common mode inductance L7.
Preferably, it is in series with below the port the AE L1 to ground capacitor C5, the lower section the port AE L2 is in series with to ground electricity Hold C6, is in series with below the port the AE L3 to ground capacitor C7, the lower section the port AE N is in series with to ground capacitor C8.
Compared with prior art, the beneficial effects of the utility model are:
The utility model in the device that Conducted Radio Frequency Immunity couples uncoupling network by being equipped with common mode inductance and arriving Ground capacitor makes common mode inductance constitute LC filter circuit with to ground capacitor, convenient for preventing to inhale most of interference signal by inductance Receipts become magnetic strength and thermal energy, and remaining major part, to ground, effectively reduces the interference of Conducted Radio Frequency by capacitive bypass.
Detailed description of the invention
Fig. 1 is the utility model principle architecture circuit structural schematic diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.
Referring to Fig. 1, the utility model provides a kind of technical solution:A kind of Conducted Radio Frequency Immunity coupling uncoupling network Device, including radio-frequency maser, coupling unit and decoupling part, it is characterised in that:The coupling unit includes coupling inductance, resistance And capacitor, the coupling inductance, resistance and capacitor are electrically connected by conducting wire, the decoupling part includes decoupling inductance, common mode Inductance and to ground capacitor, the common mode inductance includes coil and magnet ring, and the coil uniform winding is described to move back on the surface of magnet ring The left side of coupling part is equipped with the port EUT, and the right side of the decoupling part is equipped with the port AE.
The end of the radio-frequency maser is connected with inductance L1, is connected with resistance below the inductance L1, is once from left to right First resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4 have been sequentially connected in series capacitor below the resistance, institute It states capacitor and is followed successively by first capacitor C1, the second capacitor C2, third capacitor C3 and the 4th capacitor C4, input signal is passed through into resistance It is connected in series to the capacitor and is divided into four parts, reduce loss of the signal in transmission process, improve the quality of signal transmission.
The first resistor R1 series connection first capacitor C1 couples a signal to the N-terminal of the port EUT, the second resistance R2 string Join the end L3 that the second capacitor C2 couples a signal to the port EUT, the 3rd resistor R3 and third capacitor C3 is coupled a signal to The end L2 of the port EUT, the 4th resistance R4 and the 4th capacitor C4 couple a signal to the end L1 of the port EUT, by resistance with Capacitive coupling transmits a signal in decoupling circuit, convenient for reducing loss of the signal in transmission process, signal is facilitated to transmit.
The end L1 of the port EUT by coil it is smooth be wound on magnet ring and be connected to the end AE L1, the coil with Magnet ring coiling forms common mode inductance L4, and the end L2 of the port EUT is wound on magnet ring by the way that coil is smooth and is connected to AE L2 is held, the coil and magnet ring coiling form common mode inductance L5, and the end L3 of the port EUT is wound on by the way that coil is smooth On magnet ring and it is connected to the end AE L3, the coil and magnet ring coiling form common mode inductance L6, and the N-terminal of the port EUT passes through line Enclose it is smooth be wound on magnet ring and be connected to the end AE N, the coil and magnet ring coiling form common mode inductance L7, by by coil It uniformly is wrapped in the surface of magnet ring, to form common mode inductance, forms magnetic strength and thermal energy convenient for preventing to absorb interference signal, Reduce the influence that interference signal transmits signal.
It is in series with below the port the AE L1 to ground capacitor C5, the lower section the port AE L2 is in series with to ground capacitor C6, institute It states and is in series with below the L3 of the port AE to ground capacitor C7, the lower section the port AE N is in series with to ground capacitor C8, by the port AE Lower section is equipped with to ground capacitor, convenient for bottom interference signal by capacitive transmission on earth to ground, to be transmitted signal to interference signal Influence.
Working principle:When the utility model is used, signal is transmitted to coupling circuit by inductance L1 by radio-frequency maser Part, then signal by circuit transmission to decoupling circuit part, in signals transmission, common mode inductance with to ground capacitor structure At LC filter circuit, the interference signal in signal transmission, which will largely be prevented to absorb by inductance, becomes magnetic strength and thermal energy, remaining Major part, to ground, improves jamproof performance by capacitive bypass.The above descriptions are merely preferred embodiments of the present invention, It is not intended to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for this For the technical staff in field, it is still possible to modify the technical solutions described in the foregoing embodiments, or to it Middle some technical characteristics are equivalently replaced.Within the spirit and principle of the utility model, made any modification, equivalent Replacement, improvement etc., should be included within the scope of protection of this utility model.

Claims (4)

1. a kind of device of Conducted Radio Frequency Immunity coupling uncoupling network, including radio-frequency maser, coupling unit and decoupling part, It is characterized in that:The coupling unit includes coupling inductance, resistance and capacitor, and the coupling inductance, resistance and capacitor pass through conducting wire It is electrically connected, the decoupling part includes decoupling inductance, common mode inductance and arrives ground capacitor, and the common mode inductance includes coil and magnetic Ring, the coil uniform winding are equipped with the port EUT in the surface of magnet ring, the left side of the decoupling part, the decoupling part Right side is equipped with the port AE.
2. a kind of device of Conducted Radio Frequency Immunity coupling uncoupling network according to claim 1, it is characterised in that:Institute The end for stating radio-frequency maser is connected with inductance L1, is connected with resistance below the inductance L1, be followed successively by from left to right first resistor R1, Second resistance R2,3rd resistor R3 and the 4th resistance R4 have been sequentially connected in series capacitor below the resistance, and the capacitor is followed successively by First capacitor C1, the second capacitor C2, third capacitor C3 and the 4th capacitor C4.
3. a kind of device of Conducted Radio Frequency Immunity coupling uncoupling network according to claim 2, it is characterised in that:Institute State the N-terminal that first resistor R1 series connection first capacitor C1 couples a signal to the port EUT, the second capacitor of the second resistance R2 series connection C2 couples a signal to the end L3 of the port EUT, and the 3rd resistor R3 and third capacitor C3 couple a signal to the L2 of the port EUT End, the 4th resistance R 4 and the 4th capacitor C4 couple a signal to the end L1 of the port EUT.
4. a kind of device of Conducted Radio Frequency Immunity coupling uncoupling network according to claim 1, it is characterised in that:Institute State the end L1 of the port EUT by coil it is smooth be wound on magnet ring and be connected to the end AE L1, the L1 end-coil and magnet ring around System forms common mode inductance L4, and the end L2 of the port EUT is wound on magnet ring by the way that coil is smooth and is connected to the end AE L2, institute State L2 end-coil and magnet ring coiling and form common mode inductance L5, the end L3 of the port EUT by coil it is smooth be wound on magnet ring The end AE L3 is gone up and is connected to, the L3 end-coil and magnet ring coiling form common mode inductance L6, and the N-terminal of the port EUT passes through line Enclose it is smooth be wound on magnet ring and be connected to the end AE N, the N-terminal coil and magnet ring coiling form common mode inductance L7.
CN201721062249.0U 2017-08-23 2017-08-23 A kind of device of Conducted Radio Frequency Immunity coupling uncoupling network Active CN208128228U (en)

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CN201721062249.0U CN208128228U (en) 2017-08-23 2017-08-23 A kind of device of Conducted Radio Frequency Immunity coupling uncoupling network

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111970217A (en) * 2020-08-25 2020-11-20 北京科环世纪电磁兼容技术有限责任公司 Coupling and decoupling network equipment and system
CN112217582A (en) * 2020-10-26 2021-01-12 苏州泰思特电子科技有限公司 Coupling/decoupling network and anti-interference test system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111970217A (en) * 2020-08-25 2020-11-20 北京科环世纪电磁兼容技术有限责任公司 Coupling and decoupling network equipment and system
CN112217582A (en) * 2020-10-26 2021-01-12 苏州泰思特电子科技有限公司 Coupling/decoupling network and anti-interference test system

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