CN104284515A - Designing method for magnetic-field-interference resistant multi-PCB closed Rogowski coil and implementation - Google Patents

Designing method for magnetic-field-interference resistant multi-PCB closed Rogowski coil and implementation Download PDF

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Publication number
CN104284515A
CN104284515A CN201310289012.6A CN201310289012A CN104284515A CN 104284515 A CN104284515 A CN 104284515A CN 201310289012 A CN201310289012 A CN 201310289012A CN 104284515 A CN104284515 A CN 104284515A
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China
Prior art keywords
coil
pcb
luo
component units
access point
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CN201310289012.6A
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CN104284515B (en
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唐先武
张建良
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BEIJING INHAND NETWORK TECHNOLOGY Co Ltd
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BEIJING INHAND NETWORK TECHNOLOGY Co Ltd
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Priority to CN201310289012.6A priority Critical patent/CN104284515B/en
Priority to EP14813582.5A priority patent/EP3012846B1/en
Priority to PCT/CN2014/078242 priority patent/WO2014201937A1/en
Priority to US14/890,906 priority patent/US10739384B2/en
Publication of CN104284515A publication Critical patent/CN104284515A/en
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Publication of CN104284515B publication Critical patent/CN104284515B/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/003—Printed circuit coils
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0046—Arrangements for measuring currents or voltages or for indicating presence or sign thereof characterised by a specific application or detail not covered by any other subgroup of G01R19/00

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

The invention provides a designing method for a magnetic-field-interference resistant multi-PCB closed Rogowski coil and implementation. The multi-PCB closed Rogowski coil is formed by connecting two coils on multiple PCBs in series, wherein the two coils are reverse in winding direction. The coil comprises multiple constitution units connected in series, wherein the constitution units are the same. The centers of all the constitution units are evenly distributed on a magnetic force line of a magnetic field generated by current to be detected, and each constitution unit comprises two respective wire turns of the two coils which are connected in series and are reverse in winding direction, wherein the two wire turns are tightly adjacent, and each wire turn comprises an inlet wire, an outlet wire and a winding wire. The two outlet wires of the final constitution unit of the final PCB are directly connected. The winding wires are formed by wirings and passing holes in a winding mode, wherein the wirings are located on different layers, and the passing holes are formed among different layers. The plane of the winding wires is perpendicular to the surfaces of the PCBs, and the wiring paths of the winding wires coincide in the direction perpendicular to the surfaces of the PCBs. The normal direction of the magnetic force line passing through the centers of the sections of the winding wires is the same as the direction of the sections of the winding wires, and the tangential direction is approximately perpendicular to the sections of the winding wires.

Description

A kind of anti-magnetic interference polylith PCB closes Luo-coil method for designing and realization
Technical field
The present invention relates generally to PCB (printed circuit board (PCB)) Luo-coil in current sensor, is specifically related to a kind of anti-magnetic interference polylith PCB and closes Luo-coil method for designing and realization.
Background technology
Roche (Rogowski) coil is the coil formed on the framework of the nonmagnetic substance of sectional uniform equably by wire.Luo-coil because of its have lightweight, bandwidth, the linearity are good and without features such as magnetic saturation phenomenons, be widely used in current measuring device.Whether can open when Luo-coil is measured according to it, closed Luo-coil and opening Luo-coil can be divided into.What Fig. 1 showed is closed Luo-coil.
Closed Luo-coil 100 comprises as lower part:
(1) signal output part 125 and signal output part 130;
(2) from signal output part 130 around the Circular Winding 110 to Circular Winding terminal 120;
(3) from Circular Winding terminal 120 annularly winding center to the loop line circle 115 of signal output part 125.
When the closed Luo-coil 100 of application measures electric current, need first current－carrying conductor 105 to be passed closed Luo-coil 100.In order to ensure certainty of measurement, need to allow current－carrying conductor 105 pass perpendicularly through the center of closed Luo-coil 100, the center of current－carrying conductor 105 and the center superposition of closed Luo-coil 100.Closed Luo-coil 100 is looped around around current－carrying conductor 105, when alternating current I (t) to be measured flows through current－carrying conductor 105, alternating current I (t) to be measured can produce AC magnetic field around current－carrying conductor 105, the circle that it is the center of circle that the magnetic line of force is approximately with current－carrying conductor 105 center, the closed each astragal circle center of Luo-coil 100 Circular Winding 110 is located on a circular magnetic line of force wherein.The sectional area that the closed each astragal circle of Luo-coil 100 Circular Winding 110 is corresponding is equal, Circular Winding 110 each astragal circle cross-wise direction is consistent with the magnetic line of force normal direction (namely this kernel of section is to current－carrying conductor 105 center radius direction) crossing this kernel of section, and cross section is vertical with the tangential direction of this circular magnetic line of force.The magnetic flux φ of each wire turn of closed Luo-coil Circular Winding can be ensured like this i(t) approximately equal, and this magnetic flux and electric current are directly proportional.
Ф i(t)=L·I(t) 1)
Alternating current I (t) to be measured produces the change of magnetic flux in the volume that closed Luo-coil 100 Circular Winding is surrounded, can be closed Luo-coil 100 and convert the voltage signal proportional with each wire turn total magnetic flux differential to, be exactly output voltage signal V (t) between the output 125 of closed Luo-coil 100 and output 130.
V ( t ) = - d dt Σ i Φ i ( t ) - - - 2 )
Can obtain after simplification, closed Luo-coil output voltage signal V (t) is approximate proportional with the differential of alternating current I (t).
V ( t ) = - M · dI ( t ) dt - - - 3 )
Carry out integration to closed Luo-coil output voltage signal V (t), just can obtain the signal proportional with alternating current I (t), Here it is closes the principle that Luo-coil measures alternating current.
( t ) = K · ∫ V ( t ) dt - - - 4 )
It is higher that closed Luo-coil measures current precision; measuring-signal band is roomy, and can realize electrical isolation with lower cost and measure, withstand current ability is almost infinitely great; be applicable to the accurate measurement with fixed position current－carrying conductor electric current, can the fields such as relaying protection be applied to.
Closed Luo-coil 100 is when carrying out current measurement, and Circular Winding 110, except the changes of magnetic field that pickup produces to alternating current I (t) to be measured, also can pick up other alternation disturbing magnetic fields in space.Such as when there is the alternation disturbing magnetic field in paper direction in perpendicular to Fig. 1, the voltage signal because alternation disturbing magnetic field produces between the starting point 130 of Circular Winding 110 and terminal 120, will be produced.
In order to resist the impact that external magnetic field is measured closed Luo-coil 100, closed Luo-coil 100 is except Circular Winding 110, also can between the terminal 120 of Circular Winding 110 and signal output part 125, the annularly circle at the place, center of winding 110, coiling one loop circle 115.Like this when there is the alternation disturbing magnetic field in paper direction in perpendicular to Fig. 1, the voltage signal because alternation disturbing magnetic field produces can be produced between the starting point 120 and terminal 125 of loop line circle 115, voltage signal between the starting point 130 of this voltage signal and Circular Winding 110 and terminal 120, size approximately equal, polarity is contrary, and the result of two voltage signal superpositions is approximately 0.Like this when there is the alternation disturbing magnetic field in paper direction in perpendicular to Fig. 1, between the output 125 and output 130 of closed Luo-coil 100, produce interference voltage signal hardly.
Traditional Wound-rotor type closes Luo-coil as shown in Figure 2, is formed by coiling on the skeleton of annular non-magnet material, includes Circular Winding and loop line circle.When coiling, first place a loop circle along annular frame center position, then coiling Circular Winding.The voltage signal that external interference magnetic field produces in the Circular Winding of closed Luo-coil, with the voltage signal size approximately equal that loop line circle produces, polarity is contrary, and the result after superposition is approximately 0, this reduces the impact that external magnetic field is measured closed Luo-coil.
Traditional Wound-rotor type closes Luo-coil, coiling has normally been come by artificial or coil winding machine, be difficult to accomplish the even coiling of coil, often circle coil section is equal, and have easily broken string and layer capacitance to increase the shortcomings such as error, parameter consistency is difficult to be guaranteed in the industrial production, thus characteristic when affecting Luo-coil measurement electric current.
Closing the shortcoming of Luo-coil in order to overcome traditional type, having occurred a kind of novel closed Luo-coil be made up of PCB, be called for short PCB and close Luo-coil, the PCB as the annular in Fig. 3 closes shown in Luo-coil 305 and 310.PCB closes Luo-coil and adopts computer-aided design (CAD), is evenly arranged on PCB, as the PCB in Fig. 3 closes shown in Luo-coil 305 by printed conductor (follow-up referred to as wiring).PCB closes the Circular Winding one astragal circle of Luo-coil 305 by the top layer (top layer being PCB with the PCB surface towards reader, the another side reverse with PCB top layer is PCB bottom) connect up 315, connect the plated-through hole (follow-up referred to as via hole) 320 of top layer and bottom, bottom wiring 325 composition.PCB closes each astragal circle of Luo-coil 305 centered by annulus PCB center, and be evenly arranged along annulus, wire turn cross section orthogonal is in PCB.
Because PCB adopts number processing technology, can ensure that the coil section that PCB closes Luo-coil each astragal circle amasss equal from technique, the PCB produced closes Luo-coil, not only overcome the shortcoming that traditional type closes Luo-coil, and sensitivity, certainty of measurement and stability are all better than traditional coil by copper wire winding.Making PCB closes Luo-coil and only its wiring diagram need be drawn on computers, simple and efficient.PCB closes Luo-coil and is produced by Digit Control Machine Tool, avoids loaded down with trivial details winding process, can shorten the cycle of coil processing, improves the efficiency of producing.During production in enormous quantities, to close the dispersiveness of Luo-coil parameter less for PCB, and with a collection of coil produced, its distributed constant is basically identical.
PCB closes Luo-coil 305 when carrying out current measurement, and Circular Winding, except the changes of magnetic field that pickup produces to alternating current I (t) to be measured, also can pick up other alternation disturbing magnetic fields in space.Such as when there is the alternation disturbing magnetic field in paper direction in perpendicular to Fig. 3, PCB closes between the output 345 of Luo-coil 305 and output 350 can produce interference voltage signal.In order to resist external magnetic field on PCB close Luo-coil 305 measure impact, two pieces of PCB can be adopted to close Luo-coil series connection, form a combination PCB and close Luo-coil, as shown in Figure 3, PCB closes Luo-coil 305 and PCB and closes Luo-coil 310 and connect, and composition combination PCB closes Luo-coil 300.
PCB closes the wiring mirror-image arrangement that Luo-coil 310 and PCB close Luo-coil 305, and Circular Winding direction of winding is contrary.The astragal circle that PCB closes Luo-coil 310 is made up of bottom wiring 330, via hole 335 and top layer wiring 340, and the astragal circle that the PCB of correspondence closes Luo-coil 305 is made up of top layer wiring 315, via hole 320 and bottom wiring 325.Simultaneously bottom wiring 330 and top layer wiring 315, via hole 335 and via hole 320, top layer wiring 340 and bottom 325 positions of connecting up are just the same.Other each astragal circles are like this too.
When composition combination PCB closes Luo-coil 300, PCB closes Luo-coil 305 and PCB closes the placement of Luo-coil 310 stacked on top of one another, PCB closes output 345, the output 350 of Luo-coil 305, and PCB closes output 355, the output 360 of Luo-coil 310, and position overlaps completely.The output 350 that PCB closes Luo-coil 305 is connected with the output 360 that PCB closes Luo-coil 310, realizes PCB and closes the series connection that Luo-coil 305 and PCB close Luo-coil 310.The output 365 that combination PCB closes Luo-coil 300 is connected with the output 345 of closed Luo-coil 305, and the output 370 that combination PCB closes Luo-coil 300 is connected with the output 355 of closed Luo-coil 310,
When there is the alternation disturbing magnetic field in paper direction in perpendicular to Fig. 3, PCB closes the interference voltage signal produced between the output 345 of Luo-coil 305 and output 350, with PCB closes the interference voltage signal produced between the output 355 of Luo-coil 310 and output 360, size is basically identical, and polarity is contrary.Under PCB closes Luo-coil 305 and PCB closes Luo-coil 310 series connection situation, the result of these two interference signal superpositions is approximately 0.Like this when there is the alternation disturbing magnetic field in paper direction in perpendicular to Fig. 1, closing between the output 365 of Luo-coil 300 and output 370 at combination PCB and producing interference voltage signal hardly.
Two PCB that this processing method uses close Luo-coil, although distance is very near, the interference produced under extraneous magnetic fields can not be completely the same, cannot offset completely.Further, these two PCB can be closed Luo-coil design on monolithic PCB, two PCB of design like this close the effect that Luo-coil series connection can realize reducing external magnetic field interference better.What Fig. 4 A and Fig. 4 B showed is on monolithic PCB closes Luo-coil (see HIGH PRECISION ROGOWSKI COIL by the PCB of the contrary coils connected in series of two groups of direction of windings, UNITED STATESPATENT, US6313623NOV.62001), the PCB of what Fig. 4 A showed the is coils connected in series contrary by two groups of direction of windings adopting alternative form to be routed on monolithic PCB closes Luo-coil, and the PCB of the coils connected in series contrary by two groups of direction of windings that what Fig. 4 B showed is adopts interdigited fashion to be routed on monolithic PCB closes Luo-coil.
What Fig. 4 A and Fig. 4 B showed closes Luo-coil scheme by the PCB of the contrary coils connected in series of two groups of direction of windings on monolithic PCB, although the effect of external magnetic field interference can be reduced better, but two coils of design so still do not reach completely the same well, the impact eliminating external magnetic field interference can not be realized well.
PCB closes total magnetic flux that Luo-coil Circular Winding picks up and sectional area is directly proportional, the sectional area of Circular Winding is larger, picking up the total magnetic flux change of arriving will be greatly, for same electric current to be measured, the signal that PCB closes the output of Luo-coil is also larger, and the detection sensitivity that PCB closes Luo-coil is higher.PCB closes the sectional area of Luo-coil Circular Winding and PCB thickness is directly proportional, and PCB thickness is larger, and the sectional area that PCB closes Luo-coil Circular Winding is larger, and the detection sensitivity that PCB closes Luo-coil is higher.Closing the detection sensitivity of Luo-coil in order to improve PCB, PCB thickness can be improved.But PCB thickness is limited by the processing technology of PCB, can not unconfinedly increase, simultaneously along with PCB thickness increases, PCB processing cost also can rise fast.The thick PCB of monolithic closes the cost of Luo-coil, can close Luo-coil high a lot of than the PCB of the same thickness of polylith thin PCB composition.Taking cost into account, be the thick PCB of monolithic and close Luo-coil, not as the polylith PCB doing the thin PCB composition of polylith closes Luo-coil.
Be necessary to provide a kind of polylith PCB to close Luo-coil method for designing for this reason, the PCB that can design two groups of more consistent direction of windings of connecting contrary on polylith PCB closes Luo-coil, further can reduce external magnetic field to the impact of measuring, improve the ability that polylith PCB closes the interference of Luo-coil antagonism external magnetic field, can reduce polylith PCB closes Luo-coil manufacturing cost simultaneously.
Summary of the invention
The invention provides a kind of polylith PCB that can resist external magnetic field interference and close Luo-coil method for designing and realization.
According to one aspect of the present invention, the invention discloses a kind of polylith PCB that can resist external magnetic field interference and close Luo-coil method for designing, it comprises:
(1) the polylith PCB that can resist external magnetic field interference closes Luo-coil, and the coils connected in series contrary by two groups of direction of windings forms, and is respectively the 1st coil and the 2nd coil.
(2) the polylith PCB that can resist external magnetic field interference closes Luo-coil, is laminated by N block PCB.Polylith PCB closes Luo-coil and is provided with two signal output parts, is respectively the 1st signal output part and the 2nd signal output part.The PCB at the 1st signal output part and the 2nd signal output part place is 1PCB, and the PCB adjacent with 1PCB is 2PCB, if N >=3, then by that analogy, is followed successively by 3PCB, until N PCB.
(3) 1PCB to N-1PCB are provided with 4 foreign access point: the 1st foreign access point, the 2nd foreign access point, the 3rd foreign access point, the 4th foreign access point, 1st foreign access point, the 3rd foreign access point are respectively starting point and the terminal of upper 1st coil of 1PCB to N-1PCB, and the 2nd foreign access point, the 4th foreign access point are respectively starting point and the terminal of upper 2nd coil of 1PCB to N-1PCB.N PCB is provided with two foreign access point: the 1st foreign access point, the 2nd foreign access point, the 1st foreign access point is the starting point of upper 1st coil of N PCB, and the 2nd foreign access point is the starting point of upper 2nd coil of N PCB.
The 1st foreign access point on (4) 1PCB is the 1st signal output part, and the 2nd foreign access point on 1PCB is the 2nd signal output part.In stacked adjacent PCB, the 3rd foreign access point of lastblock PCB is connected with the 1st foreign access point on next block PCB, realizes the series connection of the 1st coiler part on lastblock PCB and the 1st coiler part on next block PCB, forms the 1st complete coil.In stacked adjacent PCB, the 4th foreign access point of lastblock PCB is connected with the 2nd foreign access point on next block PCB, realizes the series connection of the 2nd coiler part on lastblock PCB and the 2nd coiler part on next block PCB, forms the 2nd complete coil.1st coil and the 2nd coil are directly together in series on N PCB, form the polylith PCB that can resist external magnetic field interference and close Luo-coil.
(5) 1PCB to N PCB, every block PCB are in series by several identical component units, and each component units includes each astragal circle of the 1st coil and the 2nd coil, and this two astragals circle is closely adjacent.
(6) the astragal circle that polylith PCB closes the 1st coil of each component units of every block PCB of Luo-coil comprises: inlet wire, coiling, outlet, inlet wire and outlet are respectively used to be connected the wire turn that a upper component units and next component units belong to the 1st coil, coiling by the via hole between the wiring and different layers of different layers around forming.The astragal circle that polylith PCB closes the 2nd coil of each component units of every block PCB of Luo-coil comprises: inlet wire, coiling, outlet, inlet wire and outlet are respectively used to be connected the wire turn that a upper component units and next component units belong to the 2nd coil, coiling by the via hole between the wiring and different layers of different layers around forming.
The inlet wire of one astragal circle of the 1st coil of the 1st component units of (7) 1PCB to N PCB is connected with the 1st foreign access point of 1PCB to N PCB, and the inlet wire of an astragal circle of the 2nd coil of the 1st component units of 1PCB to N PCB is connected with the 2nd foreign access point of 1PCB to N PCB.The outlet of one astragal circle of the 1st coil of last 1 component units of 1PCB to N-1PCB is connected with the 3rd foreign access point of 1PCB to N-1PCB, and the outlet of an astragal circle of the 2nd coil of last 1 component units of 1PCB to N-1PCB is connected with the 4th foreign access point of 1PCB to N-1PCB.The outlet of one astragal circle of the 1st coil of last 1 component units of NPCB, the outlet with an astragal circle of the 2nd coil of last 1 component units of N PCB, is directly connected, and realizes the 1st coil and the 2nd series connection of coil on NPCB.
(8) the polylith PCB that can resist external magnetic field interference closes Luo-coil, the coiling plane orthogonal of each component units two astragal circle is in PCB surface, the cross section that coiling surrounds is positioned on the cross section of PCB, and the routing path of coiling overlaps on the direction perpendicular to PCB surface.
(9) the polylith PCB that can resist external magnetic field interference closes Luo-coil, on every block PCB, the center of each component units is evenly distributed on a magnetic line of force in the magnetic field that electric current to be measured produces, the magnetic line of force normal direction of this coiling kernel of section is passed through on the coiling cross-wise direction edge of all component units two astragal circles, the coiling cross section of all component units two astragal circles and magnetic line of force tangential direction (i.e. magnetization direction) near normal by this coiling kernel of section.
According to one aspect of the present invention, the invention discloses a polylith PCB that can resist external magnetic field interference and close the specific embodiment of Luo-coil method for designing, the two-sided PCB of polylith that can resist external magnetic field interference closes Luo-coil, and it comprises:
(1) the two-sided PCB of polylith that can resist external magnetic field interference closes Luo-coil, and the coils connected in series contrary by two groups of direction of windings forms, and is respectively the 1st coil and the 2nd coil.
(2) the two-sided PCB of polylith that can resist external magnetic field interference closes Luo-coil, is laminated by the two-sided PCB of N block.The two-sided PCB of polylith closes Luo-coil and is provided with two signal output parts, is respectively the 1st signal output part and the 2nd signal output part.The PCB at the 1st signal output part and the 2nd signal output part place is 1PCB, and the PCB adjacent with 1PCB is 2PCB, if N >=3, then by that analogy, is followed successively by 3PCB, until N PCB.
(3) 1PCB to N-1PCB are provided with 4 foreign access point: the 1st foreign access point, the 2nd foreign access point, the 3rd foreign access point, the 4th foreign access point, 1st foreign access point, the 3rd foreign access point are respectively starting point and the terminal of upper 1st coil of 1PCB to N-1PCB, and the 2nd foreign access point, the 4th foreign access point are respectively starting point and the terminal of upper 2nd coil of 1PCB to N-1PCB.N PCB is provided with two foreign access point: the 1st foreign access point, the 2nd foreign access point, the 1st foreign access point is the starting point of upper 1st coil of N PCB, and the 2nd foreign access point is the starting point of upper 2nd coil of N PCB.
The 1st foreign access point on (4) 1PCB is the 1st signal output part, and the 2nd foreign access point on 1PCB is the 2nd signal output part.In stacked adjacent PCB, the 3rd foreign access point of lastblock PCB is connected with the 1st foreign access point on next block PCB, realizes the series connection of the 1st coiler part on lastblock PCB and the 1st coiler part on next block PCB, forms the 1st complete coil.In stacked adjacent PCB, the 4th foreign access point of lastblock PCB is connected with the 2nd foreign access point on next block PCB, realizes the series connection of the 2nd coiler part on lastblock PCB and the 2nd coiler part on next block PCB, forms the 2nd complete coil.1st coil and the 2nd coil are directly together in series on NPCB, form the two-sided PCB of polylith that can resist external magnetic field interference and close Luo-coil.
(5) 1PCB to N PCB, the two-sided PCB of every block are in series by several identical component units, and each component units includes each astragal circle of the 1st coil and the 2nd coil, and this two astragals circle is closely adjacent.
(6) the astragal circle that the two-sided PCB of polylith closes the 1st coil of each component units of the two-sided PCB of every block of Luo-coil comprises: inlet wire, coiling, outlet, inlet wire and outlet are respectively used to be connected the wire turn that a upper component units and next component units belong to the 1st coil, coiling by the via hole between the wiring of top layer and bottom and top layer, bottom around forming.The astragal circle that the two-sided PCB of polylith closes the 2nd coil of each component units of the two-sided PCB of every block of Luo-coil comprises: inlet wire, coiling, outlet, inlet wire and outlet are respectively used to be connected the wire turn that a upper component units and next component units belong to the 2nd coil, coiling by the via hole between the wiring of top layer and bottom and top layer, bottom around forming.
The inlet wire of one astragal circle of the 1st coil of the 1st component units of (7) 1PCB to N PCB is connected with the 1st foreign access point of 1PCB to N PCB, and the inlet wire of an astragal circle of the 2nd coil of the 1st component units of 1PCB to N PCB is connected with the 2nd foreign access point of 1PCB to NPCB.The outlet of one astragal circle of the 1st coil of last 1 component units of 1PCB to N-1PCB is connected with the 3rd foreign access point of 1PCB to N-1PCB, and the outlet of an astragal circle of the 2nd coil of last 1 component units of 1PCB to N-1PCB is connected with the 4th foreign access point of 1PCB to N-1PCB.The outlet of one astragal circle of the 1st coil of last 1 component units of N PCB, the outlet with an astragal circle of the 2nd coil of last 1 component units of N PCB, is directly connected, and realizes the 1st coil and the 2nd series connection of coil on N PCB.
(8) the two-sided PCB of polylith that can resist external magnetic field interference closes Luo-coil, the coiling plane orthogonal of each component units two astragal circle is in two-sided PCB surface, the cross section that coiling surrounds is positioned on the cross section of two-sided PCB, and the routing path of coiling overlaps on the direction perpendicular to two-sided PCB surface.
(9) the two-sided PCB of polylith that can resist external magnetic field interference closes Luo-coil, on the two-sided PCB of every block, the center of each component units is evenly distributed on a magnetic line of force in the magnetic field that electric current to be measured produces, the magnetic line of force normal direction of this coiling kernel of section is passed through on the coiling cross-wise direction edge of all component units two astragal circles, the coiling cross section of all component units two astragal circles and magnetic line of force tangential direction (i.e. magnetization direction) near normal by this coiling kernel of section.
Accompanying drawing explanation
Fig. 1 shows closed Luo-coil.
Traditional Wound-rotor type that Fig. 2 takes back wire turn closes Luo-coil.
Fig. 3 display be close by two pieces of mirror image PCB the combination PCB that Luo-coil is in series to close Luo-coil.
The PCB that the direction of windings of adopt alternative form connect up on monolithic PCB two groups series connection that what Fig. 4 A showed is are contrary closes Luo-coil, and the PCB that two groups of direction of windings of connecting that what Fig. 4 B showed is adopts interdigited fashion to connect up on monolithic PCB are contrary closes Luo-coil.
What Fig. 5 showed is the specific embodiment built according to method for designing of the present invention, the two-sided PCB of N block closes the 1st piece of design to the two-sided PCB of N-1 block in Luo-coil, what Fig. 5 A showed is that the two-sided PCB of N block closes in Luo-coil the 1st piece to the top layer of the two-sided PCB of N-1 block and the lamination of bottom, what Fig. 5 B showed is the 1st piece of top layer to the two-sided PCB of N-1 block that the two-sided PCB of N block closes in Luo-coil, and what Fig. 5 C showed is the 1st piece of bottom to the two-sided PCB of N-1 block that the two-sided PCB of N block closes in Luo-coil.
What Fig. 6 showed is the specific embodiment built according to method for designing of the present invention, the two-sided PCB of N block closes the design of the two-sided PCB of N block in Luo-coil, what Fig. 6 A showed is that the two-sided PCB of N block closes the top layer of the two-sided PCB of N block in Luo-coil and the lamination of bottom, what Fig. 6 B showed is the top layer that the two-sided PCB of N block closes the two-sided PCB of N block in Luo-coil, and what Fig. 6 C showed is the bottom that the two-sided PCB of N block closes the two-sided PCB of N block in Luo-coil.
Fig. 7 shows the local detail that the two-sided PCB of N block closes the two-sided PCB of N block in Luo-coil.What Fig. 7 A showed is that the two-sided PCB of N block closes the two-sided top layer of PCB local of N block in Luo-coil and the lamination of bottom, what Figure 71 3 showed is the top layer that the two-sided PCB of N block closes the two-sided PCB local of N block in Luo-coil, and what Fig. 7 C showed is the bottom that the two-sided PCB of N block closes the two-sided PCB local of N block in Luo-coil.
Embodiment
What Fig. 5 showed is the specific embodiment built according to method for designing of the present invention, the two-sided PCB of N block closes the 1st piece of design to the two-sided PCB of N-1 block in Luo-coil, what Fig. 5 A showed is that the two-sided PCB of N block closes in Luo-coil the 1st piece to the top layer of the two-sided PCB of N-1 block and the lamination of bottom, what Fig. 5 B showed is the 1st piece of top layer to the two-sided PCB of N-1 block that the two-sided PCB of N block closes in Luo-coil, and what Fig. 5 C showed is the 1st piece of bottom to the two-sided PCB of N-1 block that the two-sided PCB of N block closes in Luo-coil.
The two-sided PCB of N block closes in Luo-coil the 1st piece to the coil 500 on the two-sided PCB of N-1 block, includes the coil 501 and 502 that two groups of direction of windings are contrary, is that the two-sided PCB of composition N block closes the 1st coil of Luo-coil and a part for the 2nd coil respectively.
Coil 500 is provided with 4 foreign access point: 503,504,505,506.Foreign access point 503 is as the starting point of coil 501, and foreign access point 505 is as the terminal of coil 501, and foreign access point 504 is as the starting point of coil 502, and foreign access point 506 is as the terminal of coil 502.
Foreign access point 503 and foreign access point 504 also close the signal output part of Luo-coil simultaneously as the two-sided PCB of N block.Foreign access point 505 is for connecting the 1st coiler part on the two-sided PCB of next block, and foreign access point 506 is for connecting the 2nd coiler part on the two-sided PCB of next block.
Coil 500 is in series by many identical component units, as the component units 507 that Fig. 5 A shows.As shown in Fig. 5 A, Fig. 5 B, Fig. 5 C, the center of component units 507, and the center of other component units, be positioned on a circular magnetic line of force of the electric current generation that current－carrying conductor 105 flows through, each component units is evenly distributed on this circular magnetic line of force.
Comprise each astragal circle of the contrary coil of two groups of direction of windings in each component units, component units 507 includes an astragal circle 508 of coil 501, an astragal circle 509 of coil 502, and this two astragals circle is closely adjacent.Fig. 5 B shows the top layer part 510 of the wire turn 508 of component units 507, the top layer part 511 of wire turn 509.The top layer part 510 of wire turn 508 is closely adjacent with the top layer part 511 of wire turn 509.Fig. 5 C shows the floor portions 512 of the wire turn 508 of component units 507, the floor portions 513 of wire turn 509.The floor portions 512 of wire turn 508 is closely adjacent with the floor portions 513 of wire turn 509.
What Fig. 6 showed is the specific embodiment built according to method for designing of the present invention, the two-sided PCB of N block closes the design of the two-sided PCB of N block in Luo-coil, what Fig. 6 A showed is that the two-sided PCB of N block closes the top layer of the two-sided PCB of N block in Luo-coil and the lamination of bottom, what Fig. 6 B showed is the top layer that the two-sided PCB of N block closes the two-sided PCB of N block in Luo-coil, and what Fig. 6 C showed is the bottom that the two-sided PCB of N block closes the two-sided PCB of N block in Luo-coil.
The two-sided PCB of N block closes the coil 600 on the two-sided PCB of N block in Luo-coil, includes the coil 601 and 602 that two groups of direction of windings are contrary, is that the two-sided PCB of composition N block closes the 1st coil of Luo-coil and a part for the 2nd coil respectively.
Coil 600 is provided with 2 foreign access point: 603,604.Foreign access point 603 is as the starting point of coil 601, and foreign access point 604 is as the starting point of coil 602.Foreign access point 603 is for connecting the 1st coiler part on the two-sided PCB of lastblock, and foreign access point 604 is for connecting the 2nd coiler part on the two-sided PCB of lastblock.
Coil 600 is in series by many identical component units, as the component units 605 that Fig. 6 A shows.As shown in Fig. 6 A, Fig. 6 B, Fig. 6 C, the center of component units 605, and the center of other component units, be positioned on a circular magnetic line of force of the electric current generation that current－carrying conductor 105 flows through, each component units is evenly distributed on this circular magnetic line of force.
Comprise each astragal circle of the contrary coil of two groups of direction of windings in each component units, component units 605 includes an astragal circle 606 of coil 601, an astragal circle 607 of coil 602, and this two astragals circle is closely adjacent.Fig. 6 B shows the top layer part 608 of the wire turn 606 of component units 605, the top layer part 609 of wire turn 607.The top layer part 608 of wire turn 606 is closely adjacent with the top layer part 609 of wire turn 607.Fig. 6 C shows the floor portions 610 of the wire turn 606 of component units 605, the floor portions 611 of wire turn 607.The floor portions 610 of wire turn 606 is closely adjacent with the floor portions 611 of wire turn 607.
The two-sided PCB coil 500 of Fig. 5 display and the two-sided PCB coil 600 of Fig. 6 display are connected, and just can form the closed Luo-coil be laminated by two pieces of two-sided PCB.The foreign access point 505 of the two-sided PCB coil 500 of Fig. 5 display connects the foreign access point 603 of the 1st coiler part of two-sided PCB coil 600, foreign access point 506 connects the foreign access point 604 of the 2nd coiler part of two-sided PCB coil 600, and foreign access point 503 and foreign access point 504 are as the signal output part of closed Luo-coil.
Fig. 7 shows the local detail of the coil 600 on the two-sided PCB of N block that the two-sided PCB of N block closes in Luo-coil.What Fig. 7 A showed is that the two-sided PCB of monolithic closes the top layer of Luo-coil 600 local and the lamination of bottom, what Fig. 7 B showed is the top layer that the two-sided PCB of monolithic closes Luo-coil 600 local, and what Fig. 7 C showed is the bottom that the two-sided PCB of monolithic closes Luo-coil 600 local.
Fig. 7 A shows the top layer of a component units 700 and the lamination of bottom that the two-sided PCB of N block closes Luo-coil, comprise the laminate portion of an astragal circle 718 of the 1st coiler part coil 720, the laminate portion of an astragal circle 719 of the 2nd coiler part coil 721 contrary with another group direction of winding.The laminate portion of one astragal circle 718 of coil 720, comprising: inlet wire 701, wiring 707, via hole 709, via hole 704, outlet 706.The laminate portion of one astragal circle 719 of coil 721, comprising: inlet wire 702, wiring 708, via hole 710, via hole 703, outlet 705.
Fig. 7 B shows the top layer that closed PCB closes a component units 700 of Luo-coil 600, comprises the top layer part of an astragal circle 718 of coil 720, the top layer part of an astragal circle 719 of the coil 721 contrary with another group direction of winding.The top layer part of one astragal circle 718 of coil 720, includes: via hole 709, wiring 714, via hole 704.The top layer part of one astragal circle 719 of coil 721, includes: inlet wire 702, wiring 715, via hole 710, via hole 703, outlet 705.
Fig. 7 C shows the bottom that closed PCB closes a component units 700 of Luo-coil 600, comprises the floor portions of an astragal circle 718 of coil 720, the floor portions of an astragal circle 719 of the coil 721 contrary with another group direction of winding.The floor portions of one astragal circle 718 of coil 720, includes: inlet wire 701, wiring 716, via hole 709, via hole 704, outlet 706.The floor portions of one astragal circle 719 of coil 721, includes: via hole 710, wiring 717, via hole 703.
Fig. 7 A, Fig. 7 B, Fig. 7 C show, closed PCB closes the rectangle winding portion of an astragal circle 718 of the coil 720 of Luo-coil 600, be made up of wiring 714, via hole 709, wiring 716, via hole 704, the top layer wiring 714 of rectangle winding portion and bottom wiring 716 are overlapping on the direction perpendicular to PCB surface.The rectangle winding portion of one astragal circle 719 of the coil 721 that another group direction of winding is contrary, be made up of wiring 717, via hole 710, wiring 715, via hole 703, bottom wiring 717 and the top layer wiring 715 of rectangle winding portion are overlapping on the direction perpendicular to PCB surface.
Fig. 7 A, Fig. 7 B, Fig. 7 C show, closed PCB closes the rectangle coiling cross-wise direction of an astragal circle 718 of a component units 700 of Luo-coil 600, and closed PCB closes the rectangle coiling cross-wise direction of an astragal circle 719 of a component units 700 of Luo-coil 600, the center of Luo-coil 600 and the directions of rays of this coiling kernel of section is closed along by closed PCB, namely closed PCB closes each place, component units center magnetic line of force of Luo-coil 600, in the normal direction of this coiling kernel of section position.
Fig. 7 A, Fig. 7 B, Fig. 7 C show, closed PCB closes the rectangle coiling cross section of an astragal circle 718 of a component units 700 of Luo-coil 600, and closed PCB closes the rectangle coiling cross section of an astragal circle 719 of a component units 700 of Luo-coil 600, vertical with the directions of rays of this coiling kernel of section with the center closing Luo-coil 600 by closed PCB, namely closed PCB closes each place, component units center magnetic line of force of Luo-coil 600, in the tangential direction of this coiling kernel of section position.
Fig. 7 A, Fig. 7 B, Fig. 7 C show, first component units that closed PCB closes Luo-coil 600 is provided with foreign access point 711, connect the inlet wire of the first circle coil of the coil 720 of first component units, first component units that closed PCB closes Luo-coil 600 is provided with foreign access point 712, connects the inlet wire of the first circle coil of the contrary coil 721 of another group direction of winding of first component units.Foreign access point 711 is for connecting the 1st coiler part on the two-sided PCB of lastblock, and foreign access point 712 is for connecting the 2nd coiler part on the two-sided PCB of lastblock.
Fig. 7 A, Fig. 7 B, Fig. 7 C show, closed PCB closes on last component units 713 of Luo-coil 600, the via hole 722 of coil 720, two outlets between the via hole 723 of the coil 721 contrary with another group direction of winding, directly be connected by wiring 724, the series connection between the coil 720 and 721 that two groups of direction of windings that the closed PCB of realization closes Luo-coil 600 are contrary.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.

Claims (10)

1., according to one aspect of the present invention, the invention discloses a kind of polylith PCB that can resist external magnetic field interference and close Luo-coil method for designing, it comprises:
(1) the polylith PCB that can resist external magnetic field interference closes Luo-coil, and the coils connected in series contrary by two groups of direction of windings forms, and is respectively the 1st coil and the 2nd coil.
(2) the polylith PCB that can resist external magnetic field interference closes Luo-coil, is laminated by N block PCB.Polylith PCB closes Luo-coil and is provided with two signal output parts, is respectively the 1st signal output part and the 2nd signal output part.The PCB at the 1st signal output part and the 2nd signal output part place is 1PCB, and the PCB adjacent with 1PCB is 2PCB, if N >=3, then by that analogy, is followed successively by 3PCB, until N PCB.
(3) 1PCB to N-1PCB are provided with 4 foreign access point: the 1st foreign access point, the 2nd foreign access point, the 3rd foreign access point, the 4th foreign access point, 1st foreign access point, the 3rd foreign access point are respectively starting point and the terminal of upper 1st coil of 1PCB to N-1PCB, and the 2nd foreign access point, the 4th foreign access point are respectively starting point and the terminal of upper 2nd coil of 1PCB to N-1PCB.N PCB is provided with two foreign access point: the 1st foreign access point, the 2nd foreign access point, the 1st foreign access point is the starting point of upper 1st coil of N PCB, and the 2nd foreign access point is the starting point of upper 2nd coil of N PCB.
The 1st foreign access point on (4) 1PCB is the 1st signal output part, and the 2nd foreign access point on 1PCB is the 2nd signal output part.In stacked adjacent PCB, the 3rd foreign access point of lastblock PCB is connected with the 1st foreign access point on next block PCB, realizes the series connection of the 1st coiler part on lastblock PCB and the 1st coiler part on next block PCB, forms the 1st complete coil.In stacked adjacent PCB, the 4th foreign access point of lastblock PCB is connected with the 2nd foreign access point on next block PCB, realizes the series connection of the 2nd coiler part on lastblock PCB and the 2nd coiler part on next block PCB, forms the 2nd complete coil.1st coil and the 2nd coil are directly together in series on N PCB, form the polylith PCB that can resist external magnetic field interference and close Luo-coil.
(5) 1PCB to N PCB, every block PCB are in series by several identical component units, and each component units includes each astragal circle of the 1st coil and the 2nd coil, and this two astragals circle is closely adjacent.
(6) the astragal circle that polylith PCB closes the 1st coil of each component units of every block PCB of Luo-coil comprises: inlet wire, coiling, outlet, inlet wire and outlet are respectively used to be connected the wire turn that a upper component units and next component units belong to the 1st coil, coiling by the via hole between the wiring and different layers of different layers around forming.The astragal circle that polylith PCB closes the 2nd coil of each component units of every block PCB of Luo-coil comprises: inlet wire, coiling, outlet, inlet wire and outlet are respectively used to be connected the wire turn that a upper component units and next component units belong to the 2nd coil, coiling by the via hole between the wiring and different layers of different layers around forming.
The inlet wire of one astragal circle of the 1st coil of the 1st component units of (7) 1PCB to N PCB is connected with the 1st foreign access point of 1PCB to N PCB, and the inlet wire of an astragal circle of the 2nd coil of the 1st component units of 1PCB to N PCB is connected with the 2nd foreign access point of 1PCB to N PCB.The outlet of one astragal circle of the 1st coil of last 1 component units of 1PCB to N-1PCB is connected with the 3rd foreign access point of 1PCB to N-1PCB, and the outlet of an astragal circle of the 2nd coil of last 1 component units of 1PCB to N-1PCB is connected with the 4th foreign access point of 1PCB to N-1PCB.The outlet of one astragal circle of the 1st coil of last 1 component units of N PCB, the outlet with an astragal circle of the 2nd coil of last 1 component units of N PCB, is directly connected, and realizes the 1st coil and the 2nd series connection of coil on N PCB.
(8) the polylith PCB that can resist external magnetic field interference closes Luo-coil, the coiling plane orthogonal of each component units two astragal circle is in PCB surface, the cross section that coiling surrounds is positioned on the cross section of PCB, and the routing path of coiling overlaps on the direction perpendicular to PCB surface.
(9) the polylith PCB that can resist external magnetic field interference closes Luo-coil, on every block PCB, the center of each component units is evenly distributed on a magnetic line of force in the magnetic field that electric current to be measured produces, the magnetic line of force normal direction of this coiling kernel of section is passed through on the coiling cross-wise direction edge of all component units two astragal circles, the coiling cross section of all component units two astragal circles and magnetic line of force tangential direction (i.e. magnetization direction) near normal by this coiling kernel of section.
2., according to one aspect of the present invention, the invention discloses a polylith PCB that can resist external magnetic field interference and close the specific embodiment of Luo-coil method for designing, the two-sided PCB of polylith that can resist external magnetic field interference closes Luo-coil, and it comprises:
(1) the two-sided PCB of polylith that can resist external magnetic field interference closes Luo-coil, and the coils connected in series contrary by two groups of direction of windings forms, and is respectively the 1st coil and the 2nd coil.
(2) the two-sided PCB of polylith that can resist external magnetic field interference closes Luo-coil, is laminated by the two-sided PCB of N block.The two-sided PCB of polylith closes Luo-coil and is provided with two signal output parts, is respectively the 1st signal output part and the 2nd signal output part.The PCB at the 1st signal output part and the 2nd signal output part place is 1PCB, and the PCB adjacent with 1PCB is 2PCB, if N >=3, then by that analogy, is followed successively by 3PCB, until N PCB.
(3) 1PCB to N-1PCB are provided with 4 foreign access point: the 1st foreign access point, the 2nd foreign access point, the 3rd foreign access point, the 4th foreign access point, 1st foreign access point, the 3rd foreign access point are respectively starting point and the terminal of upper 1st coil of 1PCB to N-1PCB, and the 2nd foreign access point, the 4th foreign access point are respectively starting point and the terminal of upper 2nd coil of 1PCB to N-1PCB.N PCB is provided with two foreign access point: the 1st foreign access point, the 2nd foreign access point, the 1st foreign access point is the starting point of upper 1st coil of N PCB, and the 2nd foreign access point is the starting point of upper 2nd coil of N PCB.
The 1st foreign access point on (4) 1PCB is the 1st signal output part, and the 2nd foreign access point on 1PCB is the 2nd signal output part.In stacked adjacent PCB, the 3rd foreign access point of lastblock PCB is connected with the 1st foreign access point on next block PCB, realizes the series connection of the 1st coiler part on lastblock PCB and the 1st coiler part on next block PCB, forms the 1st complete coil.In stacked adjacent PCB, the 4th foreign access point of lastblock PCB is connected with the 2nd foreign access point on next block PCB, realizes the series connection of the 2nd coiler part on lastblock PCB and the 2nd coiler part on next block PCB, forms the 2nd complete coil.1st coil and the 2nd coil are directly together in series on N PCB, form the two-sided PCB of polylith that can resist external magnetic field interference and close Luo-coil.
(5) 1PCB to N PCB, the two-sided PCB of every block are in series by several identical component units, and each component units includes each astragal circle of the 1st coil and the 2nd coil, and this two astragals circle is closely adjacent.
(6) the astragal circle that the two-sided PCB of polylith closes the 1st coil of each component units of the two-sided PCB of every block of Luo-coil comprises: inlet wire, coiling, outlet, inlet wire and outlet are respectively used to be connected the wire turn that a upper component units and next component units belong to the 1st coil, coiling by the via hole between the wiring of top layer and bottom and top layer, bottom around forming.The astragal circle that the two-sided PCB of polylith closes the 2nd coil of each component units of the two-sided PCB of every block of Luo-coil comprises: inlet wire, coiling, outlet, inlet wire and outlet are respectively used to be connected the wire turn that a upper component units and next component units belong to the 2nd coil, coiling by the via hole between the wiring of top layer and bottom and top layer, bottom around forming.
The inlet wire of one astragal circle of the 1st coil of the 1st component units of (7) 1PCB to N PCB is connected with the 1st foreign access point of 1PCB to N PCB, and the inlet wire of an astragal circle of the 2nd coil of the 1st component units of 1PCB to N PCB is connected with the 2nd foreign access point of 1PCB to N PCB.The outlet of one astragal circle of the 1st coil of last 1 component units of 1PCB to N-1PCB is connected with the 3rd foreign access point of 1PCB to N-1PCB, and the outlet of an astragal circle of the 2nd coil of last 1 component units of 1PCB to N-1PCB is connected with the 4th foreign access point of 1PCB to N-1PCB.The outlet of one astragal circle of the 1st coil of last 1 component units of N PCB, the outlet with an astragal circle of the 2nd coil of last 1 component units of N PCB, is directly connected, and realizes the 1st coil and the 2nd series connection of coil on N PCB.
(8) the two-sided PCB of polylith that can resist external magnetic field interference closes Luo-coil, the coiling plane orthogonal of each component units two astragal circle is in two-sided PCB surface, the cross section that coiling surrounds is positioned on the cross section of two-sided PCB, and the routing path of coiling overlaps on the direction perpendicular to two-sided PCB surface.
(9) the two-sided PCB of polylith that can resist external magnetic field interference closes Luo-coil, on the two-sided PCB of every block, the center of each component units is evenly distributed on a magnetic line of force in the magnetic field that electric current to be measured produces, the magnetic line of force normal direction of this coiling kernel of section is passed through on the coiling cross-wise direction edge of all component units two astragal circles, the coiling cross section of all component units two astragal circles and magnetic line of force tangential direction (i.e. magnetization direction) near normal by this coiling kernel of section.
3. the two-sided PCB of polylith according to claim 2 closes Luo-coil, it is characterized in that: the two-sided PCB of described polylith closes Luo-coil, the coil contrary by two groups of direction of windings: the first coil and the second coil form, first coil and the various piece of the second coil on the two-sided PCB of polylith are together in series, form the first complete coil and the second coil, first coil and the second coils connected in series get up, and the two-sided PCB of composition polylith closes Luo-coil.
4. the two-sided PCB of polylith according to claim 2 closes Luo-coil, it is characterized in that: the two-sided PCB of each block that the two-sided PCB of described polylith closes Luo-coil is in series by several identical component units.
5. the two-sided PCB of polylith according to claim 2 closes Luo-coil, it is characterized in that: the center that the two-sided PCB of described polylith closes all component units of the two-sided PCB of each block of Luo-coil is evenly distributed on a magnetic line of force in the magnetic field that electric current to be measured produces.
6. the two-sided PCB of polylith according to claim 2 closes Luo-coil, it is characterized in that: each component units that the two-sided PCB of described polylith closes the two-sided PCB of each block of Luo-coil includes each astragal circle of the first coil and the second coil, and this two astragals circle is closely adjacent.
7. the two-sided PCB of polylith according to claim 2 closes Luo-coil, it is characterized in that: the two-sided PCB of described polylith close each component units of the two-sided PCB of each block of Luo-coil an astragal circle of the first coil comprise: inlet wire, coiling, outlet, inlet wire and outlet are respectively used to be connected the wire turn that a upper component units and next component units belong to the first coil, coiling by the via hole between the wiring and top layer bottom of top layer and bottom around forming.One astragal circle of the second coil of each component units comprises: inlet wire, coiling, outlet, inlet wire and outlet are respectively used to be connected the wire turn that a upper component units and next component units belong to the second coil, coiling by the via hole between the wiring and top layer bottom of top layer and bottom around forming.
8. the two-sided PCB of polylith according to claim 2 closes Luo-coil, it is characterized in that: the 1PCB that the two-sided PCB of described polylith closes Luo-coil is provided with two signal output parts: the first signal output part and secondary signal output, what be connected with the first signal output part is the inlet wire of the wire turn of the first coil of first component units, and what be connected with secondary signal output is the inlet wire of the wire turn of the second coil of first component units.Adjacent with first component units is second component units, by that analogy, and a to the last component units.The two-sided PCB of polylith closes the outlet of the wire turn of the first coil of last component units of N PCB of Luo-coil, directly be connected with the outlet of the wire turn of the second coil of last component units, realize the two-sided PCB of monolithic and close series connection between the first coil of Luo-coil and the second coil.
9. the two-sided PCB of monolithic according to claim 2 closes Luo-coil, it is characterized in that: described monolithic two-sided PCB closes Luo-coil, the coiling plane orthogonal of the wire turn of the first coil of each component units is in two-sided PCB surface, the cross section that coiling surrounds is positioned on the cross section of PCB, and the routing path of coiling overlaps on the direction perpendicular to two-sided PCB surface.The coiling plane orthogonal of the wire turn of the second coil of each component units is in two-sided PCB surface, and the cross section that coiling surrounds is positioned on the cross section of two-sided PCB, and the routing path of coiling overlaps on the direction perpendicular to two-sided PCB surface.
10. the two-sided PCB of monolithic according to claim 2 closes Luo-coil, it is characterized in that: the coiling cross-wise direction that the two-sided PCB of described monolithic closes the wire turn of the first coil of all component units of Luo-coil is approximately the magnetic line of force normal direction by this coiling kernel of section, the coiling cross section of the wire turn of the first coil and magnetic line of force tangential direction (i.e. magnetization direction) near normal by this coiling kernel of section.The coiling cross-wise direction of the wire turn of the second coil of all component units is approximately the magnetic line of force normal direction by this coiling kernel of section, the coiling cross section of the wire turn of the second coil and magnetic line of force tangential direction (i.e. magnetization direction) near normal by this coiling kernel of section.
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CN201310289012.6A CN104284515B (en) 2013-07-11 2013-07-11 Designing method for magnetic-field-interference resistant multi-PCB closed Rogowski coil and implementation
EP14813582.5A EP3012846B1 (en) 2013-06-18 2014-05-23 Pcb rogowski coil
PCT/CN2014/078242 WO2014201937A1 (en) 2013-06-18 2014-05-23 Pcb rogowski coil
US14/890,906 US10739384B2 (en) 2013-06-18 2014-05-23 PCB Rogowski coil

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CN109100558A (en) * 2018-06-06 2018-12-28 中国电力科学研究院有限公司 A kind of Rogowski coil and current measuring device
CN109856441A (en) * 2019-04-15 2019-06-07 华北电力大学 Crimp type IGBT device chip current on-line measurement system
CN111373272A (en) * 2017-11-24 2020-07-03 新电元工业株式会社 Substrate for inspection, assembly, and method for manufacturing substrate for inspection
CN111373271A (en) * 2017-11-24 2020-07-03 新电元工业株式会社 Semiconductor component, assembly and method for manufacturing semiconductor component

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CN111373272A (en) * 2017-11-24 2020-07-03 新电元工业株式会社 Substrate for inspection, assembly, and method for manufacturing substrate for inspection
CN111373271A (en) * 2017-11-24 2020-07-03 新电元工业株式会社 Semiconductor component, assembly and method for manufacturing semiconductor component
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CN111373272B (en) * 2017-11-24 2022-07-01 新电元工业株式会社 Substrate for inspection, assembly, and method for manufacturing substrate for inspection
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CN109856441A (en) * 2019-04-15 2019-06-07 华北电力大学 Crimp type IGBT device chip current on-line measurement system
CN109856441B (en) * 2019-04-15 2024-05-10 华北电力大学 Crimping type IGBT device chip current online measurement system

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