WO2014201937A1 - 一种pcb罗氏线圈 - Google Patents

一种pcb罗氏线圈 Download PDF

Info

Publication number
WO2014201937A1
WO2014201937A1 PCT/CN2014/078242 CN2014078242W WO2014201937A1 WO 2014201937 A1 WO2014201937 A1 WO 2014201937A1 CN 2014078242 W CN2014078242 W CN 2014078242W WO 2014201937 A1 WO2014201937 A1 WO 2014201937A1
Authority
WO
WIPO (PCT)
Prior art keywords
pcb
coil
external access
access point
winding
Prior art date
Application number
PCT/CN2014/078242
Other languages
English (en)
French (fr)
Inventor
唐先武
张建良
Original Assignee
北京映翰通网络技术股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201310239226.2A external-priority patent/CN104237591B/zh
Priority claimed from CN201310289012.6A external-priority patent/CN104284515B/zh
Priority claimed from CN201310318279.3A external-priority patent/CN104349595B/zh
Priority claimed from CN201310318277.4A external-priority patent/CN104349594B/zh
Application filed by 北京映翰通网络技术股份有限公司 filed Critical 北京映翰通网络技术股份有限公司
Priority to US14/890,906 priority Critical patent/US10739384B2/en
Priority to EP14813582.5A priority patent/EP3012846B1/en
Publication of WO2014201937A1 publication Critical patent/WO2014201937A1/zh

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/003—Printed circuit coils

Definitions

  • the invention name is "A design method and implementation of a single-block PCB closed Rogowski coil with anti-magnetic field interference", submitted on July 11, 2013.
  • the application number is 201310289012. 6.
  • the invention name is "A design method and implementation of multi-block PCB Rogowski coil with anti-magnetic field interference", submitted on July 26, 2013, application number 201310318279.
  • the invention name is "a kind of Anti-magnetic field interference design method and implementation of two PCB opening Rogowski coils, submitted on July 26, 2013, application number 201310318277.
  • Invented name is a design method and implementation of multi-block PCB Rogowski coil with anti-magnetic field interference The priority of the Chinese application, the entire contents of which is incorporated herein by reference.
  • the present invention relates to the field of electronic technology, and in particular to a PCB (printed circuit board) Rogowski coil. Background of the invention
  • a Rogowski coil is a coil formed by uniformly winding a wire around a frame of a non-magnetic material having a uniform cross section.
  • Rogowski coils have been widely used in current measuring devices because of their light weight, frequency bandwidth, good linearity and no magnetic saturation.
  • the Rogowski coil can be divided into a closed Rogowski coil and an open Rogowski coil depending on whether it can be opened during measurement.
  • Figure 1 shows the closed Rogowski coil.
  • the closed Rogowski coil 100 includes the following parts:
  • the current carrying conductor 105 needs to be passed through the closed Rogowski coil 100.
  • the closed Rogowski coil 100 surrounds the current carrying conductor 105.
  • the AC current I (t) to be tested flows through the overload current conductor 105, the AC current I (t) to be tested generates an AC magnetic field around the current carrying conductor 105, and the magnetic field line is approximately A circle centered on the center of the current-carrying conductor 105 closes the center of each of the turns of the Rox coil 100 ring winding 110 on a circular magnetic line.
  • the cross-sectional area corresponding to each turn of the closed Rogowski coil 100 toroidal winding 110 is equal, the cross-sectional direction of each turn of the toroidal winding 110 and the normal direction of the magnetic field line passing through the center of the cross-section (ie, the center of the cross-section to the center radius of the current-carrying conductor 105) Consistently, the cross section is perpendicular to the tangential direction of the circular magnetic field lines. This ensures that the flux Kt) of the respective turns of the closed Rogowski coil winding is approximately equal, and that the flux is proportional to the current.
  • the alternating current I (t) to be measured generates a change in magnetic flux in a volume enclosed by the annular winding of the closed Rogowski coil 100, and can be converted into a voltage signal proportional to the total magnetic flux of each turn by the closed Rogowski coil 100, that is, closed An output voltage signal V(t) between the output 125 and the output 130 of the Rogowski coil 100.
  • the closed Rogowski coil output voltage signal v (t) is approximately proportional to the micro-divided ratio of the alternating current I (t).
  • V(t) -M . ⁇ 3)
  • the closed Rogowski coil has high current measurement accuracy and large measurement signal bandwidth. It can realize electrical isolation measurement at a low cost.
  • the current withstand capability is almost infinite. It is suitable for accurate measurement of current with fixed position current carrying conductor. It can be applied to Electrical protection and other fields.
  • the toroidal winding 110 picks up other alternating interfering magnetic fields in space in addition to the change in the magnetic field generated by the AC current I (t) to be measured. For example, when an alternating disturbance magnetic field perpendicular to the direction of the paper in Fig. 1 occurs, a voltage signal generated by the alternating magnetic field is generated between the start point 130 and the end point 120 of the toroidal winding 110.
  • the closed Rogowski coil 100 In order to resist the influence of the external magnetic field on the measurement of the closed Rogowski coil 100, the closed Rogowski coil 100, in addition to the toroidal winding 110, is also between the end point 120 of the toroidal winding 110 and the signal output end 125, along the circle of the center of the toroidal winding 110. , winding a circle back ⁇ 115.
  • a voltage signal due to the alternating disturbance magnetic field is generated between the start point 120 and the end point 125 of the return line 115, and this voltage signal and the toroidal winding 110 are generated.
  • the voltage signals between the start point 130 and the end point 120 are approximately equal in magnitude and opposite in polarity, and the result of superposition of the two voltage signals is approximately zero.
  • an interference voltage signal is hardly generated between the output terminal 125 of the closed Rogowski coil 100 and the output terminal 130.
  • a conventional wound-type closed Rogowski coil is shown in Fig. 2, which is formed by winding a bobbin of a toroidal non-magnetic material, including a toroidal winding and a loop ⁇ .
  • Fig. 2 is formed by winding a bobbin of a toroidal non-magnetic material, including a toroidal winding and a loop ⁇ .
  • the external interference magnetic field generates a voltage signal on the ring winding of the closed Rogowski coil, and the voltage signal generated on the return line is approximately equal in magnitude, and the polarity is opposite.
  • the result after the superposition is approximately 0, thus reducing the external magnetic field to the closed Roche.
  • the effect of coil measurements is shown in Fig. 2, which is formed by winding a bobbin of a toroidal non-magnetic material, including a toroidal winding and a loop ⁇ .
  • a new type of closed Rogowski coil made of PCB referred to as a PCB closed Rogowski coil, is shown, as shown by the circular PCB closed Rogowski coils 305 and 310 in FIG.
  • the PCB-closed Rogowski coil is computer-aided design (CAD), and the printed conductors (hereinafter simply referred to as wiring) are evenly arranged on the PCB, as shown by the PCB closed Rogowski coil 305 in FIG.
  • CAD computer-aided design
  • wiring printed conductors
  • the loop winding of the PCB closed Rogowski coil 305 is surrounded by a top layer (the top surface of the PCB facing the reader is the top layer of the PCB, and the other side opposite to the top layer of the PCB is the bottom layer of the PCB) wiring 315, connecting the metallization holes of the top and bottom layers ( Subsequently referred to as vias 320, the underlying wiring 325 is composed.
  • the PCB closed Rogowski coil 305 is surrounded by the center of the ring PCB and is evenly arranged along the ring. The cross section of the wire is perpendicular to the PCB.
  • the PCB adopts digital processing technology, it can ensure that the cross-sectional area of the loop of the PCB closed Rogowski coil is equal, and the fabricated PCB closed Rogowski coil not only overcomes the shortcomings of the traditional closed Rogowski coil, but also the sensitivity and measurement accuracy. And the performance stability is better than the traditional copper wire wound coil.
  • Making a PCB-closed Rogowski coil requires only drawing its wiring diagram on a computer, which is quick and easy.
  • the PCB closed Rogowski coil is produced by a CNC machine tool, which avoids the cumbersome winding process, shortens the coil processing cycle and improves the production efficiency. In the mass production, the dispersion of the PCB closed Rogowski coil parameters is small, and the distribution parameters of the coils produced in the same batch are basically the same.
  • the Rogowski coil 305 picks up the alternating magnetic field in the space in addition to the change in the magnetic field generated by the AC current I (t) to be measured. For example, when an alternating disturbance magnetic field perpendicular to the direction of the paper in Fig. 3 occurs, an interference voltage signal is generated between the output terminal 345 of the PCB closed Rogowski coil 305 and the output terminal 350.
  • two PCB closed Rogowski coils may be connected in series to form a combined PCB closed Rogowski coil. As shown in FIG. 3, the PCB closed Rogowski coil 305 and the PCB closed Rogowski coil 310 are connected in series. , forming a combined PCB closed Rogowski coil 300.
  • the wiring of the PCB closed Rogowski coil 310 and the PCB closed Rogowski coil 305 is mirror imaged, and the toroidal windings are wound in opposite directions.
  • One turn of the PCB closed Rogowski coil 310 is composed of an underlying wiring 330, a via 335 and a top wiring 340
  • a corresponding turn of the corresponding PCB closed Rogowski coil 305 is composed of a top wiring 315, a via 320 and an underlying wiring 325.
  • the underlying wiring 330 and the top wiring 315, the via 335 and the via 320, the top wiring 340, and the underlying wiring 325 are exactly the same. The same is true for other circle lines.
  • the PCB closed Rogowski coil 305 and the PCB closed Rogowski coil 310 are stacked one on top of the other, and the PCB is closed.
  • the output end 345, the output end 350 of the coil 305, and the output end 355 and the output end 360 of the PCB closed Rogowski coil 310 are completely coincident.
  • the output 350 of the PCB closed Rogowski coil 305 is coupled to the output 360 of the PCB closed Rogowski coil 310 to effect a series connection of the PCB closed Rogowski coil 305 and the PCB closed Rogowski coil 310.
  • An output 365 of the combined PCB closed Rogowski coil 300 is coupled to an output 345 of the closed Rogowski coil 305, and an output 370 of the combined PCB closed Rogowski coil 300 is coupled to an output 355 of the closed Rogowski coil 310.
  • the PCB closes the interference voltage signal generated between the output terminal 345 and the output terminal 350 of the Rogowski coil 305, and the output terminal 355 of the Rogowski coil 310 is closed.
  • the interference voltage signals generated between the output terminals 360 are substantially the same in size and opposite in polarity. In the case where the PCB closed Rogowski coil 305 and the PCB closed Rogowski coil 310 are connected in series, the result of the superposition of the two interference signals is approximately zero.
  • an interference voltage signal is hardly generated between the output terminal 365 and the output terminal 370 of the combined PCB closed Rogowski coil 300.
  • This method uses two PCB closed Rogowski coils. Although the distance is very close, the interference generated by the external magnetic field is not completely consistent and cannot be completely canceled. Further, the two PCB closed Rogowski coils can be designed on a single PCB, so that the two PCB closed Rogowski coils designed in series can better reduce the external magnetic field interference.
  • 4A and 4B are PCB closed Rogowski coils connected in series by two sets of windings with opposite winding directions on a single PCB (see HIGH PRECISION R0G0WSKI COIL, UNITED STATES PATENT, US 6 313 623 NOV. 6). 2001), FIG.
  • FIG. 4A shows a PCB-closed Rogowski coil in which two sets of coils having opposite winding directions are connected in series on a single PCB
  • FIG. 4B shows the wiring in the form of an interdigital finger.
  • a PCB in which two sets of coils having opposite winding directions are connected in series on the block PCB closes the Rogowski coil.
  • 4A and 4B show a PCB closed Rogowski coil scheme in which two sets of coils having opposite winding directions are connected in series on a single PCB. Although the external magnetic field interference effect can be better reduced, the two designed in this way The coils are still not well matched, and the effects of external magnetic field interference are not well achieved.
  • the open Rogowski coil is composed of two halves.
  • the two halves of the open Rogowski coil need to be opened to surround the current carrying conductor, and then the opening Roche is closed.
  • the two halves of the coil are such that the current carrying conductor is in the center of the closed Rogowski coil.
  • the open Rogowski coil surrounds the current carrying conductor.
  • the AC current I (t) to be tested flows through the overload current conductor, the AC current I (t) to be tested generates an alternating magnetic field around the current carrying conductor, and the magnetic flux line is approximately a current carrying conductor.
  • the center is the circle of the center.
  • the two coils in which the open Rogowski coil is also present in the closed Rogowski coil are not well matched, and the effect of eliminating external magnetic field interference is not well achieved.
  • An object of the present invention is to provide a PCB Rogowski coil, which can better eliminate the influence of external magnetic field interference and improve the resistance of the Rogowski coil to external interference.
  • a PCB Rogowski coil comprising two sets of first and second coils having opposite winding directions in series, the first coil and the second coil respectively comprising a plurality of turns, and:
  • One turn of the first coil includes: a first incoming line, a first winding, and a first outgoing line, wherein the first windings of the first coils are arranged in parallel between the first windings, the first The winding wires are respectively disposed on upper and lower surfaces of the PCB board, and the first inlet wire is connected to the first winding through the first via hole on the PCB board, and the first winding wire passes through the second via hole and a first outgoing line connection, the first outgoing line is further connected to a first incoming line of the next turn of the first coil;
  • the first turn of the second coil includes: a second incoming line, a second winding And a second outgoing line, the second windings of the second coils are arranged in parallel between the second windings, the second windings are respectively arranged on upper and lower sides of the PCB board, the second incoming line and the second line Connected by a wire, and the second wire is connected to the second wire through the third via hole of the PCB,
  • the technical solution provided by the embodiment of the present invention provides a more consistent two sets of PCB Rogowski coils with opposite winding directions in series, which can further reduce the influence of external magnetic fields on the measurement. Improve the ability of PCB Rogowski coils to resist external magnetic fields.
  • Figure 1 shows the closed Rogowski coil.
  • Figure 2 shows a conventional wound-closed Rogowski coil with a loopback.
  • Figure 3 shows a combined PCB closed Rogowski coil consisting of two mirrored PCB closed Rogowski coils connected in series.
  • Figure 4A shows two sets of PCB-closed Rogowski coils with opposite winding directions in a staggered pattern on a single PCB.
  • Figure 4B shows two sets of series windings with interdigitated wiring on a single PCB. The PCB in the opposite direction of the line closes the Rogowski coil.
  • Fig. 5 shows a single-sided double-sided PCB closed Rogowski coil according to an embodiment of the present invention.
  • Figure 5A shows the top and bottom stack of a single-sided double-sided PCB closed Rogowski coil
  • Figure 5B shows the top layer of a single-sided double-sided PCB closed Rogowski coil
  • Figure 5C shows a single-sided double-sided PCB closure. The bottom layer of the Rogowski coil.
  • Figure 6 shows a partial detail of a single double-sided PCB closed Rogowski coil in accordance with an embodiment of the present invention.
  • Figure 6A shows the top and bottom stacks of a single double-sided PCB closed Rogowski coil.
  • Figure 6B shows the top layer of a single double-sided PCB closed Rogowski coil.
  • Figure 6C shows a single block. The face PCB closes the bottom layer of the Rogowski coil.
  • FIG. 7 is a first block to a N1 double-sided PCB in a N-sided double-sided PCB closed Rogowski coil according to an embodiment of the present invention
  • FIG. 7A is a first block of N double-sided PCB closed Rogowski coils.
  • FIG. 7B shows the top layer of the N-block double-sided PCB in the N-sided double-sided PCB closed Rogowski coil, as shown in FIG. 7C.
  • the N-piece double-sided PCB closes the bottom layer of the first block to the N1-th double-sided PCB in the Rogowski coil.
  • FIG. 8 is a view showing an Nth double-sided PCB in a N-sided double-sided PCB closed Rogowski coil according to an embodiment of the present invention
  • FIG. 8A is a top view of an N-th double-sided PCB in an N-piece double-sided PCB closed Rogowski coil
  • FIG. 8B shows the top layer of the Nth double-sided PCB in the N double-sided PCB closed Rogowski coil
  • FIG. 8C shows the Nth block in the N double-sided PCB closed Rogowski coil.
  • the bottom layer of the double-sided PCB is a view showing an Nth double-sided PCB in a N-sided double-sided PCB closed Rogowski coil according to an embodiment of the present invention
  • FIG. 8A is a top view of an N-th double-sided PCB in an N-piece double-sided PCB closed Rogowski coil
  • FIG. 8B shows the top layer of the Nth double-sided PCB in the N double-sided PCB closed Rogowski coil
  • Figure 9 is a partial detail view showing the Nth double-sided PCB in the N-block double-sided PCB closed Rogowski coil of the embodiment of the present invention.
  • Figure 9A shows the top and bottom stack of the N-th double-sided PCB in the N-sided double-sided PCB closed Rogowski coil
  • Figure 9B shows the Nth block in the N-sided double-sided PCB closed Rogowski coil.
  • the top layer of the double-sided PCB is partially
  • FIG. 9C shows the bottom layer of the N-th double-sided PCB in the N-sided double-sided PCB closed Rogowski coil.
  • Figure 10 shows two double-sided PCB open Rogowski coils in accordance with an embodiment of the present invention.
  • Figure 10A shows the top and bottom stacks of two double-sided PCB open Rogowski coils.
  • Figure 10B shows the top layer of two double-sided PCB open Rogowski coils.
  • Figure 10C shows two doubles. The underside of the PCB opening Rogowski coil.
  • Figure 11 is a partial detail view showing the right side of two double-sided PCB open Rogowski coil half coils in accordance with an embodiment of the present invention.
  • Figure 11A shows the top and bottom stacks of the right side of the two half-sided PCB-opened Rogowski half-coils
  • Figure 11B shows the top-side top of the two-sided PCB-opened Rogowski half-coil
  • Figure 11C shows the bottom part of the right side of the half-coil of the two-sided PCB-opened Rogowski coil.
  • Figure 12 is a partial detail view showing the left side of two double-sided PCB open Rogowski half coils in accordance with an embodiment of the present invention.
  • Figure 12A shows the top and bottom stacks of the left side of the two half-sided PCB-opened Rogowski half-coils
  • Figure 12B shows the top left-hand side of the two-sided PCB-opened Rogowski half-coil.
  • Figure 12C shows the bottom part of the left side of the two-sided PCB-opened Rogowski half-coil.
  • FIG. 13 shows a plurality of double-sided PCB open Rogowski coil 1st to N1 double-sided PCBs laminated by an N-layer double-sided PCB according to an embodiment of the present invention.
  • the first layer to the Nth layer double-sided PCB includes two double-sided PCBs, which are first to N1 double-sided PCBs stacked to form each half of the double-sided PCB open Rogowski coil.
  • Figure 13A shows the top and bottom stacks of multiple double-sided PCB open Rogowski coil 1st to N1 double-sided PCBs.
  • Figure 13B shows multiple double-sided PCB open Rogowski coils.
  • Figure 13C shows multiple double-sided PCB opening Rogowski lines Loop from the first layer to the bottom of the Nth layer.
  • Fig. 14 is a view showing a plurality of double-sided PCB-opened Rogowski coil N-side double-sided PCBs laminated by N-layer double-sided PCB according to an embodiment of the present invention.
  • the Nth double-sided PCB comprises two double-sided PCBs, which are respectively formed by forming a N-th double-sided PCB of each half of the double-sided PCB open Rogowski coil.
  • Figure 14A shows the top and bottom stacks of a plurality of double-sided PCB-opened Rogowski coil N-layer double-sided PCBs
  • Figure 14B shows the top of a multi-sided double-sided PCB-opened Rogowski coil N-layer double-sided PCB.
  • Figure 14C shows the bottom layer of the Nth layer of a plurality of double-sided PCB open Rogowski coils.
  • FIG. 15 is a view showing the right side detail of the first to N1 double-sided PCBs of a plurality of double-sided PCB-opened Rogowski coils laminated by N-layer double-sided PCBs according to an embodiment of the present invention.
  • Figure 15A shows the stack of the top and bottom layers of the first to N1 double-sided PCBs of a plurality of double-sided PCB-opened Rogowski coils laminated by N-layer double-sided PCBs, as shown in Fig. 15B.
  • a double-sided double-sided PCB is laminated with a plurality of double-sided PCB-opened Rogowski coils on the top of the first to N1 double-sided PCBs
  • FIG. 15C is a plurality of double-layered double-sided PCBs. The surface of the PCB is open to the bottom of the first to the N1 double-sided PCB of the Rogowski coil.
  • Fig. 16 is a view showing the left side detail of the Nth double-sided PCB of a plurality of double-sided PCB-opened Rogowski coils laminated by N-layer double-sided PCBs according to an embodiment of the present invention.
  • Figure 16A shows the top and bottom stacks of the left side of the N-th double-sided PCB of half of the double-sided PCB-opened Rogowski coils laminated by the N-layer double-sided PCB, as shown in Fig. 16B.
  • Figure 16C shows a multi-layer double layered by N-layer double-sided PCB The surface of the PCB is open to the bottom layer of the left side of the Nth double-sided PCB of the half of the Rogowski coil.
  • Embodiments of the present invention provide a PCB Rogowski coil comprising two sets of first and second coils having opposite winding directions in series, wherein the first coil and the second coil respectively comprise a plurality of turns, and:
  • One turn of the first coil includes: a first incoming line, a first winding, and a first outgoing line, wherein the first windings of the first coils are arranged in parallel between the first windings, the first The winding wires are respectively disposed on upper and lower surfaces of the PCB board, and the first inlet wire is connected to the first winding through the first via hole on the PCB board, and the first winding wire passes through the second via hole and a first outgoing line connection, the first outgoing line is further connected to a first incoming line of the next turn of the first coil;
  • the first turn of the second coil includes: a second incoming line, a second winding And a second outgoing line, the second windings of the second coils are arranged in parallel between the second windings, the second windings are respectively arranged on upper and lower sides of the PCB board, the second incoming line and the second line Connected by a wire, and the second wire is connected to the second wire through the third via hole of the PCB,
  • the first coil and the second coil are disposed on a single PCB board to form a single PCB closed Rogowski coil; or the first coil and the second coil are disposed on a plurality of stacked Forming a plurality of PCB closed Rogowski coils on the PCB; or, the first coil and the second coil are disposed on two PCB boards to form two PCB open Rogowski coils; or, the first coil and the second coil are disposed on Multiple PCB boards form a plurality of PCB open Rogowski coils;
  • a plurality of PCB boards are stacked, and the plurality of turns of the first coil and the second coil are respectively wound around each of the plurality of PCB boards, and are provided with Each of the PCB boards of the multi-turn coil is sequentially connected by an external access point disposed on each of the PCB boards;
  • the two PCB-open Roche coils are respectively semi-circular PCB boards, the A plurality of turns of a coil and a second coil are respectively wound on two PCB boards, and two PCBs provided with a plurality of turns are respectively provided with two external access points, and the two PCB boards pass through Each of the two external access points is connected, and the other two external access points of the two PCB boards are respectively used as signal output ends of the two PCB boards;
  • a plurality of PCB boards are stacked to form two sets of semi-circular annular PCB boards, and the plurality of turns of the first coil and the second coil are respectively wound on two sets of semi-circular circular PCB boards.
  • each semicircular ring with multiple turns of wire loops is provided.
  • the PCB boards are connected by respective external access points, and one of the other two external access points of one semi-circular circular PCB board is used as a point of connection with another set of semi-circular circular PCB boards, and the other as a a signal output end of a set of semicircular annular PCB boards;
  • one turn of the first coil and one turn of the adjacent second coil constitute a constituent unit, and two turns of the constituent unit are closely adjacent to each other, and several of the same The constituent units are connected in series;
  • the first incoming line and the first outgoing line of the first coil of each of the constituent units are respectively connected to a coil of the first constituent unit and the next constituent unit belonging to the first coil,
  • the first winding is surrounded by the first via and the second via between the wiring of the top and bottom layers and the bottom layer of the top layer;
  • the second incoming line and the second outgoing line of the second coil of each of the constituent units are respectively A coil connecting the upper constituent unit and the next constituent unit belonging to the second coil, the second winding being surrounded by the third via and the fourth via between the wiring of the top and bottom layers and the bottom layer of the top layer.
  • the minimum spacing between the two turns of the constituent unit is equal to the minimum safe spacing of the PCB
  • the minimum safe spacing of the PCB and the PCB Board process related, such as PCB board minimum safety spacing is 6mi l (mil), SPO. 1524mm (mm).
  • the single PCB closes the Rogowski coil, and can also:
  • a cross section of the first winding of each of the turns of the first coil is located on a cross section of the PCB, and the first winding of each turn of the first coil is Coincident in a direction perpendicular to the surface of the PCB;
  • a cross section of the second winding of each of the second turns of the second coil is located on a cross section of the PCB, and a second winding of each turn of the second coil Coincident in a direction perpendicular to the surface of the PCB;
  • the center of all the constituent elements is evenly distributed on a magnetic field line of the magnetic field generated by the current to be measured, and the winding direction of the winding of the first coil of all the constituent units is approximately through the winding direction.
  • the normal direction of the magnetic flux line at the center of the line section, the section surrounded by the winding of the coil of the first coil and the tangential direction of the magnetic line passing through the center of the winding section are approximately vertical; the winding of the coil of the second coil of all the constituent units
  • the resulting cross-sectional direction is approximately the normal direction of the magnetic flux passing through the center of the winding cross-section, and the cross-section of the winding of the second coil is approximately perpendicular to the tangential direction of the magnetic flux passing through the center of the winding cross-section.
  • the technical solution provided by the embodiments of the present invention provides a more consistent two sets of PCB Rogowski coils with opposite winding directions in series, which can further reduce the influence of the external magnetic field on the measurement and improve the ability of the PCB Rogowski coil to resist external magnetic field interference.
  • the cross-sectional area of the PCB closed Rogowski coil winding is proportional to the PCB thickness.
  • the PCB thickness can be increased.
  • the PCB thickness is subject to the PCB processing technology and cannot be increased without limitation.
  • the PCB processing cost will also rise rapidly.
  • the cost of a single piece of thick PCB closed Rogowski coil can be much higher than a PCB-closed Rogowski coil of the same thickness composed of multiple thin PCBs. From the cost point of view, it is better to make multiple PCB-closed Rogowski coils made of multiple thin PCBs.
  • a second of the plurality of alternatives described above is: the plurality of PCBs are closed to the Rogowski coil:
  • Two signal output terminals are provided: a first signal output end and a second signal output end, in the PCB board in which the N blocks are stacked, the PCB board where the first signal output end and the second signal output end are located is 1 PCB, the PCB adjacent to the first PCB is the second PCB, until the Nth PCB;
  • (b) four external access points are set on the first PCB to the N-1 PCB: a first external access point, a second external access point, a third external access point, a fourth external access point;
  • the first external access point and the third external access point are respectively a start point and an end point of the first coil on the first PCB to the N-1 PCB, and the second external connection
  • the entry point and the fourth external access point are respectively a start point and an end point of the second coil on the first PCB to the N-1 PCB;
  • two external access points are disposed on the Nth PCB: the first external connection An entry point, a second external access point, the first external access point being a starting point of the first coil on the Nth PCB,
  • the second external access point is a starting point of the second coil on the Nth PCB;
  • the first external access point on the first PCB is the first signal output end
  • the second external access point on the first PCB is the second signal output End
  • the third external access point of the upper PCB of the adjacent adjacent PCB boards is connected to the first external access point on the next PCB board to realize the first coil on the previous PCB Partially connected in series with the first coil portion on the next PCB to form a complete first coil; the fourth external access point of the upper PCB of the adjacent adjacent PCB board and the second external connection of the next PCB board Connecting the in points to realize the series connection of the second coil portion on the previous PCB and the second coil portion on the next PCB to form a complete second coil; the first coil and the second coil are on the Nth PCB Directly connected in series.
  • the plurality of PCBs are closed to the Rogowski coil, and the:
  • one turn of the first coil and one turn of the adjacent second coil in each of the PCBs constitute a constituent unit, and a plurality of identical constituent units are connected in series, and the composition The two turns of the unit are closely adjacent;
  • the first incoming line and the first outgoing line of the first coil of each constituent unit are respectively used to connect the upper constituent unit and the next constituent unit belonging to the first coil, the first winding
  • the first via and the second via between the wiring of the top and bottom layers and the top layer and the bottom layer are surrounded;
  • the second incoming line and the second outgoing line of the second coil of each constituent unit are respectively used to connect the previous one
  • the constituent unit and the next constituent unit belong to the coil of the second coil, and the second winding is surrounded by the wiring at the top and bottom layers and the third via and the fourth via between the top layer and the bottom layer;
  • the first incoming line of the first coil of the first coil of the first component of the first PCB to the Nth PCB and the first external access point of the first PCB to the Nth PCB Connected, the second incoming line of the second coil of the first component of the first PCB to the Nth PCB is connected to the second external access point of the first PCB to the Nth PCB;
  • the first PCB is The first outgoing line of the first coil of the first coil of the N-1th PCB is connected to the third external access point of the first PCB to the N-1 PCB, the first PCB to the N-th 1
  • the second outgoing line of the second coil of the second coil of the last component of the PCB is connected to the fourth external access point of the first PCB to the N-1 PCB; the last one of the Nth PCB
  • the first outgoing line of one turn of the first coil is directly connected to the second outgoing line of one turn of the second coil of the last one of the Nth PCB, and the first coil and the second coil are realized at
  • a cross section of the winding of each of the two turns of the constituent unit is perpendicular to the surface of the PCB, and a cross section of the winding is located on a cross section of the PCB.
  • the routing paths of the windings coincide in a direction perpendicular to the surface of the PCB;
  • the center of each of the constituent units on each of the PCBs is evenly distributed on a magnetic field line of a magnetic field generated by the current to be measured, and the winding cross-sectional direction of the two turns of all the constituent units Through the normal direction of the magnetic lines of force at the center of the winding section, the winding section of all the two turns of the constituent unit and the tangential direction of the magnetic lines passing through the center of the winding section are approximately perpendicular.
  • the minimum spacing between the two turns of the constituent unit is equal to the minimum safe spacing of the PCB
  • the minimum safe spacing of the PCB and the PCB Board process related, such as PCB board minimum safety spacing is 6mi l (mil), SPO. 1524mm (mm).
  • the technical solution provided by the embodiments of the present invention provides a more consistent two sets of PCB Rogowski coils with opposite winding directions in series, which can further reduce the influence of the external magnetic field on the measurement and improve the ability of the PCB Rogowski coil to resist external magnetic field interference.
  • each of the PCB boards Two external access points are provided on each of the PCB boards: a first external access point and a second external access point; each of the first external access points on the PCB board is a starting point of the first coil on the PCB, a second external access point on the PCB is an end point of the second coil on the PCB; and/or, (b) two of the PCB boards have Two connection modes: two first external access points of the PCB board are directly connected, and two second external access points of the two PCB boards serve as two signal output ends of the two PCB open Rogowski coils.
  • the first signal output terminal and the second signal output terminal are respectively connected to each other; or the second external access point of the two PCB boards is directly connected, and the first external access point of the two PCBs serves as the two PCBs
  • the two signal output ends of the open Rogowski coil are the first signal output end and the second signal output end, respectively.
  • the two PCB open Rogowski coils can also:
  • the first incoming line and the first outgoing line of the first coil of each constituent unit are respectively used to connect the upper constituent unit and the next constituent unit belonging to the first loop, the first winding
  • the first via and the second via between the wiring of the top and bottom layers and the top layer and the bottom layer are surrounded;
  • the second incoming line and the second outgoing line of the second coil of each constituent unit are respectively used to connect the previous one
  • the constituent unit and the next constituent unit belong to the coil of the second coil, and the second winding is surrounded by the wiring at the top and bottom layers and the third via and the fourth via between the top layer and the bottom layer;
  • the PCB board where the first signal output end is located is the first PCB
  • the PCB board where the second signal output end is located is the second PCB
  • the first PCB is composed of the first a first incoming line of one turn of the first coil of the unit is connected to a first external access point of the first PCB, and a second turn of the first coil of the first component of the first PCB a second incoming line is connected to the second external access point of the first PCB
  • a first incoming line of the first coil of the first coil of the first component of the second PCB and the second PCB a first external access point is connected, and a second incoming line of one turn of the second coil of the first component of the second PCB is connected to a second external access point of the second PCB
  • the first PCB is composed of the first a first incoming line of one turn of the first coil of the unit is connected to a first external access point of the first PCB, and a second turn of the first coil of the first component of the first PCB a second
  • a cross section of the winding of the two turns of each of the constituent units is perpendicular to the surface of the PCB, and a cross section of the winding is located on a cross section of the PCB, The routing paths of the windings coincide in a direction perpendicular to the surface of the PCB;
  • the center of each component unit on each of the PCB boards is evenly distributed on a magnetic field line of the magnetic field generated by the current to be measured, and the winding cross-section direction of all the two turns of the constituent unit is approximately
  • the normal direction of the magnetic lines of the center of the winding section, the winding section of all the two turns of the constituent unit and the tangential direction of the magnetic lines passing through the center of the winding section are approximately perpendicular.
  • the minimum spacing between the two turns of the constituent unit is equal to the minimum safe spacing of the PCB
  • the minimum safe spacing of the PCB and the PCB Board process related, such as PCB board minimum safety spacing is 6mi l (mil), SPO. 1524mm (mm).
  • the technical solution provided by the embodiments of the present invention provides a more consistent two sets of PCB Rogowski coils with opposite winding directions in series, which can further reduce the influence of the external magnetic field on the measurement and improve the ability of the PCB Rogowski coil to resist external magnetic field interference.
  • the PCB Rogowski coil Since the total magnetic flux picked up by the loop winding of the PCB Rogowski coil is proportional to the cross-sectional area, the larger the cross-sectional area of the loop winding, the larger the total flux change picked up.
  • the PCB Rogowski coil The larger the output signal, the higher the detection sensitivity of the PCB Rogowski coil.
  • the cross-sectional area of the PCB Rogowski coil winding is proportional to the PCB thickness. The larger the PCB thickness, the larger the cross-sectional area of the PCB Rogowski coil winding, and the higher the detection sensitivity of the PCB Rogowski coil. In order to improve the detection sensitivity of the PCB Rogowski coil, the PCB thickness can be increased.
  • the PCB thickness is limited by the processing of the PCB, and cannot be increased without limitation. At the same time, as the thickness of the PCB increases, the PCB processing cost will also rise rapidly.
  • the cost of a single thick PCB Rogowski coil can be much higher than that of a PCB of the same thickness composed of multiple thin PCBs. From the cost point of view, to do a single piece of thick PCB Rogowski coil, it is better to do multiple PCB thin coils composed of multiple thin PCB.
  • the first external access point on the first PCB of each set of semi-circular PCB boards is the first signal output end, and the second external access point on the first PCB is the second signal output end.
  • the third external access point of the upper PCB of the adjacent PCB boards stacked in each semi-circular circular PCB board and the first one of the next PCB board The external access points are connected to realize the series connection of the first coil portion on the previous PCB board and the first coil portion on the next PCB board to form a complete first coil; the adjacent adjacent layers in each set of semicircular annular PCB boards
  • the fourth external access point of the previous PCB in the PCB is connected to the second external access point on the next PCB, and the second coil portion on the previous PCB board and the second coil on the next PCB board are realized. Partially connected in series to form a complete second coil; the first coil and the second coil of each half of the PCB Rogowski coil are directly connected in series on the Nth PCB to form a set of semicircular
  • the two signal output ends of the PCB opening Rogowski coil are respectively the first signal output end and the second signal output end; or, the second signal output ends of the two sets of semicircular annular PCB boards are directly connected, and the two sets of semicircular annular PCB boards are respectively
  • the signal output end is two signal output ends of a plurality of PCB open Rogowski coils, which are a first signal output end and a second signal output end, respectively.
  • the plurality of PCB open Rogowski coils may further:
  • one turn of the first coil and one turn of the adjacent second coil in each of the plurality of PCB-opened Rogowski coils constitute a constituent unit, and several of the same The constituent units are connected in series, and the two turns of the constituent units are closely adjacent to each other;
  • the first incoming line and the first outgoing line of the first coil of each constituent unit are respectively used to connect the upper constituent unit and the next constituent unit belonging to the first coil, the first winding
  • the first via and the second via are arranged between the wiring of the top and bottom layers and the top and bottom layers;
  • the second incoming line and the second outgoing line of the second coil of each constituent unit are respectively used to connect the previous one
  • the constituent unit and the next constituent unit belong to the coil of the second coil, and the second winding is surrounded by the wiring of the top layer and the bottom layer and the third via hole and the fourth via hole between the top layer and the bottom layer;
  • the center of each component is evenly distributed on a magnetic field line of the magnetic field generated by the current to be measured.
  • the winding cross-section of all the two turns of the constituent unit is approximately along the line of magnetic force passing through the center of the winding section. In the normal direction, the winding section of all the two turns of the constituent unit is approximately perpendicular to the tangential direction of the magnetic lines passing through the center of the winding section.
  • the minimum spacing between the two turns of the constituent unit is equal to the minimum safe spacing of the PCB
  • the minimum safe spacing of the PCB and the PCB Board process related, such as PCB board minimum safety spacing is 6mi l (mil), SPO. 1524mm (mm).
  • the technical solution provided by the embodiments of the present invention provides a more consistent two sets of PCB Rogowski coils with opposite winding directions in series, which can further reduce the influence of the external magnetic field on the measurement and improve the ability of the PCB Rogowski coil to resist external magnetic field interference.
  • the specific implementation of different types of Rogowski coils will be described in detail below.
  • a first coil and a second coil In the single PCB closed Rogowski coil capable of resisting external magnetic field interference, two sets of coils having opposite winding directions are connected in series: a first coil and a second coil, the first coil and the second coil are located on a single PCB, A coil and a second coil are connected in series to form a single PCB closed Rogowski coil.
  • the single-piece PCB closed Rogowski coil capable of resisting external magnetic field interference is specifically formed by connecting a plurality of identical constituent units in series, and each of the constituent units includes one turn of the first coil and one turn of the second coil. These two turns are close together. Among them, the two turns of the coils are closely adjacent. It can be understood as follows: The minimum spacing between the two turns is equal to the minimum safe spacing of the PCB.
  • the minimum safe spacing of the PCB is related to the PCB process. For example, the minimum safe spacing of the PCB is 6mi l (mil), gfl0. 1524mm (mm).
  • One turn of the first coil of each constituent unit of the single PCB closed Rogowski coil includes: incoming wire, winding wire, outgoing wire, incoming wire and outgoing wire respectively
  • the wire is connected to the first component and the next component belongs to the first coil, and the winding is surrounded by the wiring between the different layers and the via between the different layers.
  • the top layer wiring and the bottom layer wiring path coincide, and the cross section surrounded by the top layer wiring, the bottom layer wiring, and the two via holes is a rectangle.
  • a coil of the second coil of each constituent unit of the single PCB closed Rogowski coil includes: an incoming line, a winding, an outgoing line, an incoming line and an outgoing line respectively for connecting the previous constituent unit and the next constituent unit belongs to the second
  • the turns of the coil are surrounded by wires located in different layers and vias between different layers.
  • the single PCB closed Rogowski coil capable of resisting external magnetic field interference has two signal output ends: a first signal output end and a second signal output end, and the first signal output end is connected to the first component unit.
  • the incoming line of the coil of the coil, connected to the second signal output, is the incoming line of the first coil of the second coil of the constituent unit. Adjacent to the first component is the second component, and so on, until the last component.
  • the outgoing line of the first coil of the last constituent unit is directly connected to the outgoing line of the second coil of the last constituent unit, and the series connection between the first coil and the second coil of the single PCB closed Rogowski coil is realized. .
  • the single PCB closed Rogowski coil capable of resisting external magnetic field interference
  • the winding of the winding of the first coil of each constituent unit is perpendicular to the surface of the PCB, and the cross section of the winding is located on the cross section of the PCB.
  • the routing paths of the windings coincide in a direction perpendicular to the surface of the PCB.
  • the winding of the winding of the second coil of each constituent unit is perpendicular to the surface of the PCB, the cross section of the winding is located on the cross section of the PCB, and the wiring path of the winding is coincident in the direction perpendicular to the surface of the PCB. .
  • the single-chip PCB closed Rogowski coil capable of resisting external magnetic field interference, the centers of all the constituent units are evenly distributed on a magnetic line of the magnetic field generated by the current to be measured.
  • the winding cross-sectional direction of the turns of the first coils of all constituent units is approximately the normal direction of the magnetic lines of force passing through the center of the winding cross-section, the winding cross-section of the turns of the first coil and the tangential direction of the magnetic lines passing through the center of the winding cross-section (ie the direction of the magnetic field strength) is approximately vertical.
  • the winding cross-sectional direction of the turns of the second coils of all constituent units is approximately the normal direction of the magnetic lines of force passing through the center of the winding section, the winding section of the turns of the second coil, and the tangential direction of the magnetic lines passing through the center of the winding section (ie the direction of the magnetic field strength) is approximately vertical.
  • a single PCB closed Rogowski coil In a single PCB closed Rogowski coil, the PCB is a double-sided PCB, and the first coil and the second coil are located on the upper and lower sides of the PCB. Therefore, a single PCB closed Rogowski coil can be referred to as a single double-sided PCB closed Rogowski coil.
  • the single-sided double-sided PCB closed Rogowski coil capable of resisting external magnetic field interference includes two sets of coils having opposite winding directions, a first coil and a second coil, and the first coil and the second coil are located on a single double-sided PCB. The first coil and the second coil are connected in series to form a single double-sided PCB closed Rogowski coil.
  • the single-sided double-sided PCB closed Rogowski coil capable of resisting external magnetic field interference is specifically formed by connecting several identical constituent units in series, and each constituent unit includes one turn of the first coil and one turn of the second coil. Hey, the two turns are close together. Among them, the two turns of the coils are closely adjacent. It can be understood as follows: The minimum spacing between the two turns is equal to the minimum safe spacing of the PCB.
  • the minimum safe spacing of the PCB is related to the PCB process. For example, the minimum safe spacing of the PCB is 6mil (mil), gP0. 1524mn (mm).
  • each of the first coils of the constituent unit includes: an incoming line, a winding, an outgoing line, and an incoming line and an outgoing line, respectively, for connecting the upper constituent unit and the next constituent unit belonging to the first coil, winding It is surrounded by vias between the top and bottom wiring and the top layer.
  • a single-sided double-sided PCB closes a coil of the second coil of each constituent unit of the Rogowski coil, including: an incoming line, a winding, an outgoing line, an incoming line and an outgoing line, respectively, for connecting the previous constituent unit and the next constituent unit
  • the winding of the second coil is surrounded by a via between the top and bottom wiring and the top layer.
  • the single-sided double-sided PCB closed Rogowski coil capable of resisting external magnetic field interference has two signal output ends: a first signal output end and a second signal output end, and the first signal output end is connected to the first component unit.
  • the incoming line of the turns of the first coil, connected to the second signal output, is the incoming line of the turns of the second coil of the first constituent unit. Adjacent to the first component is the second component, and so on, until the last component.
  • the exit line of the first coil of the last constituent unit is directly connected to the exit line of the coil of the second coil of the last constituent unit, thereby realizing a single double-sided PCB closing between the first coil and the second coil of the Rogowski coil The tandem.
  • the single-sided double-sided PCB closed Rogowski coil capable of resisting external magnetic field interference the winding of the winding of the first coil of each constituent unit is perpendicular to the surface of the double-sided PCB, and the cross section of the winding is located on the PCB.
  • the routing paths of the windings coincide in a direction perpendicular to the surface of the double-sided PCB.
  • the winding of the winding of the second coil of each constituent unit is perpendicular to the surface of the double-sided PCB, and the cross section of the winding is located on the cross section of the double-sided PCB, and the wiring path of the winding is perpendicular to the double-sided
  • the orientation of the PCB surface coincides.
  • the single-sided double-sided PCB closed Rogowski coil capable of resisting external magnetic field interference, the center of all the constituent units is evenly distributed in the magnetic field generated by the current to be measured a magnetic line.
  • the winding cross-sectional direction of the turns of the first coils of all constituent units is approximately the normal direction of the magnetic lines of force passing through the center of the winding cross-section, the winding cross-section of the turns of the first coil and the tangential direction of the magnetic lines passing through the center of the winding cross-section (ie the direction of the magnetic field strength) is approximately vertical.
  • the winding cross-sectional direction of the turns of the second coils of all constituent units is approximately the normal direction of the magnetic lines of force passing through the center of the winding section, the winding section of the turns of the second coil, and the tangential direction of the magnetic lines passing through the center of the winding section (ie the direction of the magnetic field strength) is approximately vertical.
  • FIG. 5 is a single-sided double-sided PCB closed Rogowski coil 500 capable of resisting external magnetic field interference according to an embodiment of the present invention, which is suitable for measuring vertical crossing.
  • the PCB closes the current flowing through the current-carrying conductor 105 at the center of the Rogowski coil 500.
  • the alternating magnetic field line generated by the current is a circle centered on the center of the PCB closed Rogowski coil 500.
  • Figure 5A shows the top and bottom stack of a single-sided double-sided PCB closed Rogowski coil
  • Figure 5B shows the top layer of a single-sided double-sided PCB closed Rogowski coil
  • Figure 5C shows a single-sided double-sided PCB closure.
  • the single-sided double-sided PCB-closed Rogowski coil 500 includes two sets of coils 501 and 502 having opposite winding directions, and the coil 501 and the coil 502 are connected in series to form a PCB-closed Rogowski coil 500.
  • the single-sided double-sided PCB closed Rogowski coil 500 is formed by connecting a plurality of identical constituent units in series, as shown in Fig. 5A as a constituent unit 503. As shown in FIG. 5A, FIG. 5B, and FIG. 5C, the center of the constituent unit 503, and the center of the other constituent units, are located on a circular magnetic line generated by the current flowing through the current-carrying conductor 105, and the respective constituent units are evenly distributed in this section. Circular magnetic line.
  • Each of the constituent units includes two coil turns of two sets of coils having opposite winding directions, and the constituent unit 503 includes one turn 504 of the coil 501 and one turn 505 of the coil 502. Adjacent.
  • the top portion 506 of the turn 504 of the constituent unit 503 shown in Fig. 5B the top portion 507 of the turn 505.
  • the top portion 506 of the turn 504 is closely adjacent to the top portion 507 of the turn 506.
  • the bottom portion 508 of the turn 504 of the constituent unit 503 shown in Fig. 5C the bottom portion 509 of the turn 505.
  • the bottom portion 508 of the turn 504 is closely adjacent to the bottom portion 509 of the turn 506.
  • FIG. Figure 6A shows the top and bottom stack of a single double-sided PCB closed Rogowski coil 500.
  • Figure 6B shows the top layer of a single double-sided PCB closed Rogowski coil 500.
  • Figure 6C shows a single The block double-sided PCB closes the bottom layer of the local portion of the Rogowski coil 500.
  • Figure 6A shows a stack of top and bottom layers of a constituent unit 600 of a closed PCB closed Rogowski coil 500, including a laminated portion of one turn of the coil 620, and a coil 621 of another set of windings opposite to each other.
  • the laminated portion of the circle ⁇ 619.
  • the laminated portion of the coil 620 of the coil 620 includes: an incoming line 601, a wiring 607, a via 609, a via 604, and an outgoing line 606.
  • the laminated portion of the coil 621 of the coil 621 includes: an incoming line 602, a wiring 608, a via 610, a via 603, and an outgoing line 605.
  • the top layer of one of the constituent units 600 of the closed PCB closed Rogowski coil 500 shown in Fig. 6B includes the top portion of one turn of the coil 620, and the top of a loop of the coil 621 of the other set of windings 621. section.
  • the top portion of coil 620 of coil 620 includes: via 609, wiring 616, via 604.
  • the top portion of the coil 621 of the coil 619 includes: an incoming line 602, a wiring 617, a via 610, a via 603, and an outgoing line 605.
  • the bottom layer of one of the constituent units 600 of the closed PCB closed Rogowski coil 500 shown in Fig. 6C includes the bottom layer portion of one turn of the coil 620, and the bottom layer of one turn of the coil 621 of the other set of winding directions 619. section.
  • the bottom portion of coil 620 of coil 620 includes: incoming line 601, wiring 614, via 609, via 604, and outgoing line 606.
  • the bottom portion of the coil 621 of the coil 621 includes: a via 610, a wiring 615, and a via 603.
  • the rectangular winding portion of one turn of the coil 620 of the closed PCB closed Rogowski coil 500 is composed of a wiring 616, a via 609, a wiring 614, and a via 604, and is rectangularly wound.
  • the top layer wiring 616 and the underlying wiring 614 of the line portion are overlapped in a direction perpendicular to the surface of the PCB.
  • Another rectangular winding portion of one turn of the coil 621 of the opposite winding direction 621 is composed of a wiring 615, a via 610, a wiring 617, a via 603, and a bottom wiring 615 and a top wiring 617 of the rectangular winding portion. They overlap in a direction perpendicular to the surface of the PCB.
  • the rectangular winding cross-sectional direction of the winding 619 is along the direction of the ray in the center of the Rogowski coil 500 and the center of the winding section by closing the PCB, that is, the magnetic line of the center of each constituent unit of the closed PCB closed Rogowski coil 500, in which the winding section is The normal direction of the center position.
  • a rectangular winding section of ⁇ 619, and a middle of the Rogowski coil 500 closed by closing the PCB The heart is perpendicular to the ray direction of the center of the winding section, that is, the magnetic field line at the center of each constituent unit of the closed PCB closed Rogowski coil 500, in the tangential direction of the center position of the winding section.
  • the first component of the closed PCB closed Rogowski coil 500 is provided with an external access point 61 1, and an incoming line connecting the first winding of the coil 620 of the first constituent unit.
  • the first component of the closed PCB closed Rogowski coil 500 is provided with an external access point 612 for connecting the incoming line of the first turn of the coil 621 of the other set of winding elements of the first constituent unit.
  • External Access Point 612 acts as both ends of the output signal of the closed PCB closed Rogowski coil 500.
  • the plurality of PCB closed Rogowski coils capable of resisting external magnetic field interference include two sets of series coils having opposite winding directions, which are a first coil and a second coil, respectively.
  • the plurality of PCB closed Rogowski coils capable of resisting external magnetic field interference are specifically formed by stacking N blocks of PCB.
  • the multi-block PCB closed Rogowski coil has two signal outputs, which are a first signal output end and a second signal output end, respectively.
  • first external access point is set on the first PCB to the N-1 PCB: first external access point, second external access point, third external access point, fourth external access point, first external
  • the access point and the third external access point are the start point and the end point of the first coil on the first PCB to the N-1 PCB, respectively
  • the second external access point and the fourth external access point are the first PCB to the first N-1 The start and end points of the second coil on the PCB.
  • Two external access points are set on the Nth PCB: the first external access point, the second external access point, the first external access point is the starting point of the first coil on the Nth PCB, and the second external access point
  • the first external access point on the first PCB from the second coil on the Nth PCB is the first signal output terminal
  • the second external access point on the first PCB is the second signal output terminal.
  • a third external access point of the previous PCB in the stacked adjacent PCB is connected to the first external access point on the next PCB to implement the first coil portion on the previous PCB and the first coil portion on the next PCB
  • the series is connected to form a complete first coil.
  • the fourth external access point of the previous PCB in the stacked adjacent PCB is connected to the second external access point on the next PCB to implement the second coil portion on the previous PCB and the second coil portion on the next PCB
  • the series is connected to form a complete second coil.
  • the first coil and the second coil are directly connected in series on the Nth PCB to form a plurality of PCB closed Rogowski coils capable of resisting external magnetic field interference.
  • each PCB is formed by a series of several identical constituent units, each of which comprises a coil of the first coil and the second coil, and the two coils are tightly connected. Adjacent.
  • the close proximity of two turns of wire can be understood as follows:
  • the minimum spacing between two turns is equal to the minimum safe spacing of the PCB.
  • the minimum safe spacing of the PCB is related to the PCB process. For example, the minimum safe spacing of the PCB is 6mi l. (mil), ie 0. 1524mm (mm).
  • the plurality of PCBs close the coil of the first coil of each of the constituent units of each PCB of the Rogowski coil, including: an incoming line, a winding, an outgoing line, an incoming line and an outgoing line, respectively, for connecting the previous constituent unit and the next one
  • the constituent units belong to the turns of the first coil, and the windings are surrounded by wirings located in different layers and vias between different layers.
  • a plurality of PCBs of the second coil of each of the constituent units of each of the PCBs of the Rogowski coil are closed, including: an incoming line, a winding, an outgoing line, an incoming line and an outgoing line, respectively, for connecting the previous constituent unit and the next composition
  • the unit belongs to the turns of the second coil, which is surrounded by wires located in different layers and vias between different layers. Specifically, the top layer wiring and the bottom layer wiring path coincide, and the cross section surrounded by the top layer wiring, the bottom layer wiring, and the two via holes is similar to a rectangle.
  • the first coil to the first coil of the first component of the first PCB to the Nth PCB is connected to the first external access point of the first PCB to the Nth PCB, and the first PCB to the Nth PCB
  • the incoming line of one turn of the second coil of the first constituent unit is connected to the second external access point of the first PCB to the Nth PCB.
  • the first coil to the first coil of the Nth PCB is connected to the first coil of the first coil to the third external access point of the first PCB to the N-1 PCB, the first PCB to the first
  • the exit line of one turn of the second coil of the last component of the N-1 PCB is connected to the fourth external access point of the first PCB to the N-1 PCB.
  • the exit line of one turn of the first coil of the last component of the Nth PCB is directly connected to the exit line of the turn of the second coil of the last component of the Nth PCB, and the first coil is realized. And the series connection of the second coil on the Nth PCB.
  • the plurality of PCB closed Rogowski coils capable of resisting external magnetic field interference, the winding line of each of the two turns of the constituent unit is perpendicular to the surface of the PCB, and the cross section of the winding is located on the cross section of the PCB, and is wound.
  • the routing paths coincide in a direction perpendicular to the surface of the PCB.
  • the plurality of PCB closed Rogowski coils capable of resisting external magnetic field interference the center of each component unit on each PCB is evenly distributed on a magnetic field line of the magnetic field generated by the current to be measured, and the winding cross-section direction of all the two turns of the constituent unit Along the normal direction of the magnetic lines of force passing through the center of the winding section, the winding section of the two turns of the constituent elements and the tangential direction of the magnetic lines passing through the center of the winding section (i.e., the direction of the magnetic field strength) are approximately perpendicular.
  • the PCB board is a double-sided PCB, and the first coil and the second coil are located on the upper and lower sides of the PCB board. Therefore, the plurality of PCB closed Rogowski coils can be referred to as a plurality of double-sided PCB closed Rogowski coils.
  • two sets of coils having opposite winding directions are connected, which are a first coil and a second coil, respectively.
  • a plurality of double-sided PCBs that can resist external magnetic field interference close the Rogowski coil and are specifically formed by stacking N double-sided PCBs.
  • Multiple double-sided PCB closed Rogowski coils have two signal outputs, which are the first signal output and the second signal output.
  • first external access point is set on the first PCB to the N-1 PCB: first external access point, second external access point, third external access point, fourth external access point, first external
  • the access point and the third external access point are the start point and the end point of the first coil on the first PCB to the N-1 PCB, respectively
  • the second external access point and the fourth external access point are the first PCB to the first N-1 The start and end points of the second coil on the PCB.
  • Two external access points are set on the Nth PCB: a first external access point, a second external access point, a first external access point is a starting point of the first coil on the Nth PCB, and a second external access point
  • the first external access point on the first PCB from the second coil on the Nth PCB is the first signal output terminal
  • the second external access point on the first PCB is the second signal output terminal.
  • a third external access point of the previous PCB in the stacked adjacent PCB is connected to the first external access point on the next PCB to implement the first coil portion on the previous PCB and the first coil portion on the next PCB
  • the series is connected to form a complete first coil.
  • the fourth external access point of the previous PCB in the stacked adjacent PCB is connected to the second external access point on the next PCB to implement the second coil portion on the previous PCB and the second coil portion on the next PCB
  • the series is connected to form a complete second coil.
  • the first coil and the second coil are directly connected in series on the Nth PCB to form a plurality of double-sided PCB closed Rogowski coils capable of resisting external magnetic field interference.
  • each of the double-sided PCBs is formed by connecting a plurality of identical constituent units in series, each of the constituent units including one turn of the first coil and the second coil, and the two loops ⁇ Closely adjacent. Among them, the two turns of the coils are closely adjacent. It can be understood as follows: The minimum spacing between the two turns is equal to the minimum safe spacing of the PCB.
  • the minimum safe spacing of the PCB is related to the PCB process. For example, the minimum safe spacing of the PCB is 6mi l (mil), ie 0. 1524mm (mm).
  • a plurality of double-sided PCB closed loops of each of the first coils of each of the double-sided PCBs of the Rogowski coil include: an incoming wire, a winding wire, an outgoing wire, and an outgoing wire and an outgoing wire respectively for connecting the previous constituent unit And the next component of the coil belonging to the first coil, the winding is surrounded by the wiring between the top and bottom layers and the via between the top layer and the bottom layer.
  • a plurality of double-sided PCB closed loops of each of the second coils of each of the double-sided PCBs of the Rogowski coil include: an incoming line, a winding, an outgoing line, an incoming line and an outgoing line respectively for connecting the previous constituent unit And the next component of the coil belonging to the second coil, the winding is surrounded by the wiring between the top and bottom layers and the via between the top layer and the bottom layer.
  • the top layer wiring and the bottom layer wiring path coincide, and the cross section surrounded by the top layer wiring, the bottom layer wiring, and the two via holes is a rectangle.
  • the first coil to the first coil of the first component of the first PCB to the Nth PCB is connected to the first external access point of the first PCB to the Nth PCB, and the first PCB to the Nth PCB
  • the incoming line of one turn of the second coil of the first constituent unit is connected to the second external access point of the first PCB to the Nth PCB.
  • the first coil to the first coil of the Nth PCB is connected to the first coil of the first coil to the third external access point of the first PCB to the N-1 PCB, the first PCB to the first
  • the exit line of one turn of the second coil of the last component of the N-1 PCB is connected to the fourth external access point of the first PCB to the N-1 PCB.
  • the exit line of one turn of the first coil of the last component of the Nth PCB is directly connected to the exit line of the turn of the second coil of the last component of the Nth PCB, and the first coil is realized. And the series connection of the second coil on the Nth PCB.
  • the winding line of each of the two turns of the constituent unit is perpendicular to the surface of the double-sided PCB, and the cross section of the winding is located on the cross-section of the double-sided PCB.
  • the routing paths of the windings coincide in a direction perpendicular to the surface of the double-sided PCB.
  • the center of each component unit on each double-sided PCB is evenly distributed in the power to be tested.
  • the magnetic flux line of the magnetic field generated by the flow, the winding cross-section direction of all the two turns of the constituent unit is along the normal direction of the magnetic flux passing through the center of the winding cross-section, and the winding cross section of all the two turns of the constituent unit and the winding
  • the tangential direction of the magnetic field lines at the center of the section ie, the direction of the magnetic field strength
  • Figure 7 shows the first block to the N-1th double-sided PCB in the N-sided double-sided PCB closed Rogowski coil of the embodiment of the present invention
  • Figure 7A shows the N-sided double-sided PCB closed Rogowski coil.
  • Figure 7C shows the bottom layer of the first block to the N-1th double-sided PCB in the N-sided double-sided PCB closed Rogowski coil.
  • the N-block double-sided PCB closes the coil 500 on the 1st to N-1th double-sided PCB in the Rogowski coil, and includes two sets of coils 501 and 502 with opposite winding directions, which are respectively composed of N double-sided PCB closed A portion of the first coil and the second coil of the Rogowski coil.
  • the coil 500 is provided with four external access points: 503, 504, 505, 506.
  • the external access point 503 serves as the starting point of the coil 501
  • the external access point 505 serves as the end point of the coil 501
  • the external access point 504 serves as the starting point of the coil 502
  • the external access point 506 serves as the end point of the coil 502.
  • the external access point 503 and the external access point 504 also serve as signal outputs for the N-block double-sided PCB closed Rogowski coil.
  • An external access point 505 is used to connect the first coil portion on the next double-sided PCB, and an external access point 506 is used to connect the second coil portion on the next double-sided PCB.
  • the coil 500 is formed by connecting a plurality of identical constituent units in series, as shown in Fig. 7A as a constituent unit 507. As shown in FIG. 7A, FIG. 7B, and FIG. 7C, the center of the constituent unit 507, and the center of other constituent units, are located on a circular magnetic line generated by the current flowing through the current-carrying conductor 105, and the respective constituent units are evenly distributed in this section. Circular magnetic line.
  • Each of the constituent units includes two coil turns of two sets of coils having opposite winding directions, and the constituent unit 507 includes a loop ⁇ 508 of the coil 501 and a loop 509 of the coil 502, and the loops are tight. Adjacent.
  • the top portion 510 of the turn 508 and the top portion 51 1 of the turn 509 are closely adjacent.
  • the bottom portion 512 of the turn 508 is closely adjacent to the bottom portion 513 of the turn 509.
  • Figure 8 is a diagram showing an N-th double-sided PCB in a N-block double-sided PCB closed Rogowski coil according to an embodiment of the present invention, and Figure 8A shows an N-block double-sided
  • FIG. 8B shows the top layer of the Nth double-sided PCB in the N-sided double-sided PCB closed Rogowski coil, as shown in FIG. 8C. It is the bottom layer of the Nth double-sided PCB in the N-sided double-sided PCB closed Rogowski coil.
  • the N-block double-sided PCB closes the coil 600 on the Nth double-sided PCB in the Rogowski coil, and includes two sets of coils 601 and 602 with opposite winding directions, which are respectively the first coils of the N-sided double-sided PCB closed Rogowski coil. And a part of the second coil.
  • the coil 600 is provided with two external access points: 603, 604.
  • the external access point 603 serves as the starting point for the coil 601, and the external access point 604 serves as the starting point for the coil 602.
  • An external access point 603 is used to connect the first coil portion on the upper double-sided PCB, and an external access point 604 is used to connect the second coil portion on the upper double-sided PCB.
  • the coil 600 is formed by connecting a plurality of identical constituent units in series, as shown in Fig. 8A as a constituent unit 605. As shown in FIG. 8A, FIG. 8B, and FIG. 8C, the center of the constituent unit 605, and the center of the other constituent units, are located on a circular magnetic line generated by the current flowing through the current-carrying conductor 105, and the respective constituent units are evenly distributed in this section. Circular magnetic line.
  • Each of the constituent units includes two loops ⁇ of two sets of coils having opposite winding directions, and the constituent unit 605 includes a loop ⁇ 606 of the coil 601, and a loop ⁇ 607 of the coil 602, the loops are tight Adjacent.
  • the top portion 608 of the turn 606 is closely adjacent to the top portion 609 of the turn 607.
  • the bottom portion 610 of the turn 606 of the constituent unit 605 shown in Fig. 8C is the bottom portion 61 1 of the turn 607.
  • the bottom portion 610 of the turn 606 is closely adjacent to the bottom portion 61 1 of the turn 607.
  • the double-sided PCB coil 500 shown in Fig. 7 and the double-sided PCB coil 600 shown in Fig. 8 are connected in series to form a closed Rogowski coil which is formed by laminating two double-sided PCBs.
  • the external access point 505 of the double-sided PCB coil 500 shown in FIG. 7 is connected to the external access point 603 of the first coil portion of the double-sided PCB coil 600, and the external access point 506 is connected to the second coil portion of the double-sided PCB coil 600.
  • the external access point 604, the external access point 503 and the external access point 504 serve as signal outputs for the closed Rogowski coil.
  • Figure 9 shows a partial detail of the coil 600 on the Nth double-sided PCB in the Rogowski coil of the N-sided double-sided PCB.
  • Figure 9A shows the top and bottom stack of a single double-sided PCB closed Rogowski coil 600.
  • Figure 9B shows the top layer of a single double-sided PCB closed Rogowski coil 600.
  • Figure 9C shows a single The block double-sided PCB closes the bottom layer of the partial portion of the Rogowski coil 600.
  • the opposite portion of the second coil portion coil 721 is a laminated portion of the coil 719.
  • the laminated portion of the coil 718 of the coil 720 includes: an incoming line 701, a wiring 707, a via 709, a via 704, and an outgoing line 706.
  • the laminated portion of one turn of the coil 721 includes a feed line 702, a wiring 708, a via 710, a via 703, and an outgoing line 705.
  • the top layer of one of the constituent cells 700 of the closed PCB closed Rogowski coil 600 shown in Fig. 9B includes the top portion of one turn of the coil 720, and the top of a turn of the coil 721 of the other set of windings 721. section.
  • the top portion of one turn of the coil 720, 718 includes: via 709, wiring 714, via 704.
  • the top portion of coil 721 of coil 721 includes: incoming line 702, wiring 715, via 710, via 703, and outgoing line 705.
  • the bottom layer of one of the constituent units 700 of the closed PCB closed Rogowski coil 600 shown in Fig. 9C includes the bottom layer portion of one turn of the coil 720, and the bottom layer of one turn of the coil 721 of the other set of winding directions 721. section.
  • the bottom portion of the coil 720 of the coil 720 includes: an incoming line 701, a wiring 716, a via 709, a via 704, and an outgoing line 706.
  • the bottom portion of the coil 721 of the coil 721 includes: a via 710, a wiring 717, and a via 703.
  • the rectangular winding portion of one turn of the coil 720 of the closed PCB closed Rogowski coil 600 is composed of a wiring 714, a via 709, a wiring 716, and a via 704, and is surrounded by a rectangle.
  • the top layer wiring 714 and the lower layer wiring 716 of the line portion are overlapped in a direction perpendicular to the surface of the PCB.
  • Another rectangular winding portion of one turn of the coil 721 of the winding direction 721 of the other winding direction is composed of a wiring 717, a via 710, a wiring 715, a via 703, and an underlying wiring 717 and a top wiring 715 of the rectangular winding portion. They overlap in a direction perpendicular to the surface of the PCB.
  • the rectangular winding cross-sectional direction of the winding 719 is along the direction of the ray in the center of the Rogowski coil 600 and the center of the winding section by closing the PCB, that is, the magnetic line of the center of each constituent unit of the closed PCB closed Rogowski coil 600, in which the winding section is The normal direction of the center position.
  • the rectangular winding section of the crucible 719 is perpendicular to the ray direction of the center of the Rogowski coil 600 closed by the closed PCB and the center of the winding section, that is, the magnetic line of the center of each constituent unit of the closed PCB closed Rogowski coil 600, at the center of the winding section The tangential direction of the position.
  • the first component unit of the closed PCB closed Rogowski coil 600 is provided with an external access point 71, and the first winding of the coil 720 of the first constituent unit is connected.
  • the first component of the closed PCB closed Rogowski coil 600 is provided with an external access point 712 for connecting the incoming line of the first set of coils of the other set of windings 721 of the first constituent unit.
  • An external access point 71 1 is used to connect the first coil portion on the upper double-sided PCB
  • an external access point 712 is used to connect the second coil portion on the upper double-sided PCB.
  • two sets of coils having opposite winding directions are connected, which are a first coil and a second coil, respectively, and each of the PCBs has a first coil and a second coil. Part of the coil.
  • the two PCB-open Rogowski coils which are capable of resisting external magnetic field interference, specifically include two PCBs, and two external access points are disposed on each PCB: a first external access point and a second external access point.
  • the first external access point on each PCB is the starting point of the first coil on each PCB
  • the second external access point on each PCB is the end of the second coil on each PCB.
  • the two PCBs can be connected in two ways: the first external access point of the two PCBs is directly connected, and the second external access point of the two PCBs serves as two signal outputs of the two PCB-open Rogowski coils, respectively 1 signal output end and second signal output end; the second external access point of the two PCBs is directly connected, and the first external access point of the two PCBs serves as two signal output ends of two PCB open Rogowski coils, respectively The first signal output terminal and the second signal output terminal.
  • First 1 The PCB where the signal output is located is the first PCB, and the PCB where the second signal output is located is the second PCB.
  • each PCB is formed by connecting a plurality of identical constituent units in series, each of the constituent units including one turn of the first coil and the second coil, and the two loops are tightly connected Adjacent. Among them, the two turns of the coils are closely adjacent. It can be understood as follows: The minimum spacing between the two turns is equal to the minimum safe spacing of the PCB.
  • the minimum safe spacing of the PCB is related to the PCB process. For example, the minimum safe spacing of the PCB is 6mi l (mil), SPO. 1524mm (mm).
  • One turn of each of the first coils of each of the PCBs of the two PCB-opened Rogowski coils includes: an incoming wire, a winding wire, an outgoing wire, and an outgoing wire and an outgoing wire, respectively, for connecting the previous constituent unit and the next component
  • the unit belongs to the turns of the first coil, which is surrounded by wires located in different layers and vias between different layers.
  • a coil of each of the second coils of each of the PCBs of the two PCB-opened Rogowski coils includes: an incoming wire, a winding wire, an outgoing wire, and an outgoing wire and an outgoing wire respectively for connecting the previous constituent unit and the next component
  • the unit belongs to the turns of the second coil, which is surrounded by wires located in different layers and vias between different layers. Specifically, the top layer wiring and the bottom layer wiring path coincide, and the cross section surrounded by the top layer wiring, the bottom layer wiring, and the two via holes is a rectangle.
  • the incoming line of one turn of the first coil of the first component of the first PCB is connected to the first external access point of the first PCB, and the first coil of the first coil of the first PCB constitutes a turn of the second coil
  • the incoming line is connected to the second external access point of the first PCB.
  • the incoming line of one turn of the first coil of the first component of the second PCB is connected to the first external access point of the second PCB, and the turn of the second coil of the first component of the second PCB
  • the incoming line is connected to the second external access point of the second PCB.
  • the outgoing line of one turn of the first coil of the last component of the first PCB is directly connected to the outgoing line of one turn of the second coil of the last component of the first PCB, and the first coil and the first coil are realized.
  • the two coils are connected in series on the first PCB.
  • the outlet of one turn of the first coil of the last component of the second PCB is directly connected to the exit of one turn of the second coil of the last component of the second PCB to realize the first coil And the series connection of the second coil on the second PCB.
  • Two PCB-opened Rogowski coils capable of resisting external magnetic field interference each of which is composed of two turns of windings, the winding section is perpendicular to the surface of the PCB, the winding section is located on the cross section of the PCB, and the winding of the winding The paths coincide in a direction perpendicular to the surface of the PCB.
  • the PCB board is a double-sided PCB, and the first coil and the second coil are located on the upper and lower sides of the PCB board. Therefore, the two PCB-opening Rogowski coils can be referred to as two double-sided PCB-open Rogowski coils.
  • each of the double-sided PCBs has a first a coil and a portion of the second coil.
  • the two double-sided PCB open Rogowski coils which can resist external magnetic field interference, are composed of two double-sided PCBs, and two external access points are arranged on each double-sided PCB: first external access point, second external Access Point.
  • the first external access point on each double-sided PCB starts from the first coil on each double-sided PCB.
  • the second external access point on each double-sided PCB is the end point of the second coil on each PCB.
  • the two PCBs can be connected in two ways: the first external access point of the two PCBs is directly connected, and the second external access point of the two PCBs serves as two signal outputs of the two PCB-open Rogowski coils, respectively 1 signal output end and second signal output end; the second external access point of the two PCBs is directly connected, and the first external access point of the two PCBs serves as two signal output ends of two PCB open Rogowski coils, respectively The first signal output terminal and the second signal output terminal.
  • the PCB where the first signal output is located is the first PCB
  • the PCB where the second signal output is located is the second PCB.
  • each of the double-sided PCBs is formed by connecting a plurality of identical constituent units in series, each of the constituent units including one turn of the first coil and the second coil, and the two loops ⁇ Closely adjacent. Among them, the two turns of the wire are closely adjacent. It can be understood as follows: The minimum spacing between the two turns is equal to the minimum safe spacing of the PCB.
  • the minimum safe spacing of the PCB is related to the PCB process. For example, the minimum safe spacing of the PCB is 6mi l (mil), ie 0. 1524mm (mm).
  • each of the first coils of each of the double-sided PCBs of the two double-sided PCB-opened Rogowski coils includes: an incoming wire, a winding wire, an outgoing wire, and an incoming wire and an outgoing wire, respectively, for connecting the previous constituent unit And the next component of the coil belonging to the first coil, the winding is surrounded by the wiring between the top and bottom layers and the via between the top layer and the bottom layer.
  • Two double-sided PCB-opened Rogowski coils of each of the double-sided PCBs The windings include: incoming, winding, outgoing, incoming and outgoing, respectively, for connecting the last component and the next component belonging to the second coil, the winding consists of the top and bottom wiring and the top and bottom layers.
  • the via is surrounded by a hole. Specifically, the top layer wiring and the bottom layer wiring path coincide, and the cross section surrounded by the top layer wiring, the bottom layer wiring, and the two via holes is a rectangle.
  • the incoming line of one turn of the first coil of the first component of the first PCB is connected to the first external access point of the first PCB, and the first coil of the first coil of the first PCB constitutes a turn of the second coil
  • the incoming line is connected to the second external access point of the first PCB.
  • the incoming line of one turn of the first coil of the first component of the second PCB is connected to the first external access point of the second PCB, and the turn of the second coil of the first component of the second PCB
  • the incoming line is connected to the second external access point of the second PCB.
  • the outgoing line of one turn of the first coil of the last component of the first PCB is directly connected to the outgoing line of one turn of the second coil of the last component of the first PCB, and the first coil and the first coil are realized.
  • the two coils are connected in series on the first PCB.
  • the outlet of one turn of the first coil of the last component of the second PCB is directly connected to the exit of one turn of the second coil of the last component of the second PCB to realize the first coil And the series connection of the second coil on the second PCB.
  • each of the two turns of the windings of the constituent unit is perpendicular to the surface of the double-sided PCB, and the cross section of the winding is located on the cross section of the double-sided PCB Above, the routing paths of the windings coincide in a direction perpendicular to the surface of the double-sided PCB.
  • Figure 10 shows two double-sided PCB open Rogowski coils 500 capable of resisting external magnetic field interference in accordance with an embodiment of the present invention, which is suitable for measuring the current flowing through the current-carrying conductor 1 13 passing through the center of the PCB opening Rogowski coil 500.
  • the alternating magnetic field lines generated by the current are a circle centered on the center of the PCB opening Rogowski coil 500.
  • Figure 10A shows the top and bottom stacks of two double-sided PCB open Rogowski coils.
  • Figure 10B shows the top layer of two double-sided PCB open Rogowski coils.
  • Figure 10C shows two double-sided PCB openings. The bottom layer of the Rogowski coil.
  • the two double-sided PCB-opened Rogowski coils 500 include two halves of a double-sided PCB Rogowski coil, which are a coil 501 and a coil 502, respectively.
  • the coil 501 includes two sets of coils having opposite winding directions: a coil 503 and a coil 504, and the coil 503 and the coil 504 constitute a half-sided PCB Rogowski coil 501.
  • the coil 502 includes two sets of coils having opposite winding directions: a coil 505 and a coil 506, and a coil 505 and a coil 506 form a half-sided PCB Rogowski coil 502.
  • the coil 500 is provided with four external access points: 507, 508, 509, 510.
  • the external access point 508 serves as the starting point for the coil 503 and the external access point 507 serves as the end point of the coil 504.
  • the external access point 510 serves as the starting point for the coil 505 and the external access point 509 serves as the end point of the coil 506.
  • the coil 501 and the coil 502 can be formed into two double-sided PCB-opened Rogowski coils 500 in two ways:
  • the external access point 507 and the external access point 509 serve as signal output ends of two double-sided PCB-open Rogowski coils, and the external access point 508 and the external access point 510 are directly connected for connecting the coil 501 and the coil 502;
  • the external access point 508 and the external access point 510 serve as signal outputs for two double-sided PCB-open Rogowski coils, and the external access point 507 and the external access point 509 are directly connected for connecting the coil 501 and the coil 502.
  • the half coil 501 of the double-sided PCB-opened Rogowski coil 500 is formed by connecting a plurality of identical constituent units in series, as shown in Fig. 10A as a constituent unit 51 1.
  • Fig. 10A As shown in FIG. 10A, FIG. 10B, and FIG. 10C, the center of the constituent unit 51 1 and the center of the other constituent units are located on a circular magnetic line generated by the current flowing through the current-carrying conductor 1 13 , and the respective constituent units are evenly distributed. This circular magnetic line.
  • Each of the constituent units of the half coil 501 of the double-sided PCB-opened Rogowski coil 500 includes two sets of coils having opposite winding directions: one turn of the coil 503 and the coil 504, and the constituent unit 51 1 includes one turn of the coil 503.
  • the turns 513, one turn of the coil 504, 514, the two turns are closely adjacent.
  • the top portion 517 of the turn 513 is closely adjacent to the top portion 518 of the turn 514.
  • the bottom portion 521 of the turn 513 of the constituent unit 51 1 shown in Fig. 10C the bottom portion 522 of the turn 514.
  • the bottom portion 521 of the turn 513 is closely adjacent to the bottom portion 522 of the turn 514.
  • the half coil 502 of the double-sided PCB-opened Rogowski coil 500 is formed by connecting a plurality of identical constituent units in series, one constituent unit 512 as shown in FIG. 10A. As shown in FIG. 10A, FIG. 10B, and FIG. 10C, the center of the constituent unit 512, and the center of the other constituent units, are located on a circular magnetic line generated by the current flowing through the current-carrying conductor 1, and the respective constituent units are evenly distributed. A circular magnetic line.
  • Each of the constituent units of the half coil 502 of the double-sided PCB-opened Rogowski coil 500 includes two sets of coils having opposite winding directions: one coil coil 505 and one coil coil 506, and the constituent unit 512 includes one loop of the coil 505. ⁇ 515, one turn of the coil 506 is ⁇ 516, and the two turns are closely adjacent.
  • the top portion 519 of the turn 515 of the constituent unit 512, the top portion 520 of the turn 516, is shown in FIG. 5B.
  • the top portion 519 of the turn 515 is in close proximity to the top portion 520 of the turn 516.
  • the bottom portion 523 of the turn 515 of the constituent unit 512 shown in Fig. 5C, the bottom portion 524 of the turn 516.
  • the bottom portion 523 of the turn 515 and the bottom portion 524 of the turn 516 are in close proximity.
  • Figure 1 is a partial detail of the right side of the half coil 501 of two double-sided PCB-opened Rogowski coils 500 in accordance with an embodiment of the present invention.
  • Figure 1 1A shows the top and bottom stacks of the right side of the half coil 501 of the two double-sided PCB-opened Rogowski coils 500.
  • Figure 1 1 B shows the two double-sided PCB open Rogowski coils 500.
  • the top layer of the right side of the half coil 501 shown in Fig. 1 1 C, is the bottom layer of the right side of the half coil 501 of the two double-sided PCB-opened Rogowski coils 500.
  • Figure 1 A two-sided PCB open Rogowski coil 500 half of the coil 501 a component of the unit 600 of the top and bottom stack, including the coil
  • the laminated portion of the loop ⁇ 61 1 of 503 is a laminated portion of a loop ⁇ 612 of the coil 504 opposite to the winding direction of the other set.
  • the laminated portion of the coil ⁇ 61 1 of the coil 503 includes: an incoming line 601, a wiring 607, a via 609, a via 603, and an outgoing line 605.
  • the laminated portion of the coil 504 of the coil 504 includes: an incoming wire 602, a wiring 608, a via 610, a via 604, and an outgoing line 606.
  • Figure 1 1B shows the top layer of one of the constituent units 600 of the half coil 501 of the two double-sided PCB-opened Rogowski coils 500, including the top portion of one turn of the coil 503, and the opposite direction of the other winding.
  • the coil 504 is looped to the top portion of the coil 612.
  • the top portion of the loop ⁇ 61 1 of the coil 503 includes: an incoming line 601, a wiring 613, a via 609, a via 603, and an outgoing line 605.
  • the top portion of coil 604 of coil 504 includes: via 610, wiring 614, via 604.
  • Figure 1 1 C shows the bottom layer of one of the constituent units 600 of the half coil 501 of the two double-sided PCB-opened Rogowski coils 500, including the bottom portion of one turn of the coil 503, and the opposite direction of the other winding.
  • the coil 504 is looped to the bottom portion of the coil 612.
  • the bottom portion of one turn of the coil 503, 61 1 includes: via 609, wiring 615, via 603.
  • the 604 is composed of a top wiring 613 and a bottom wiring 615 of a rectangular winding portion which are overlapped in a direction perpendicular to the surface of the PCB.
  • Another set of rectangular winding portions of one turn of the coil 504 having the opposite winding directions is composed of a wiring 616, a via 610, a wiring 614, a via 604, and a bottom wiring 616 and a top wiring 614 of the rectangular winding portion. They overlap in a direction perpendicular to the surface of the PCB.
  • Fig. 1 1 A, Fig. 1 1 B, Fig. 1 1 C the rectangular winding cross-sectional direction of one turn of the coil 503, the rectangular winding cross-direction of the coil 504 of the coil 504, approximately along the direction
  • the direction of the ray in the center of the two-sided PCB opening Rogowski coil 500 and the center of the winding section that is, the magnetic line of the center of each component unit of the two double-sided PCB-opening Rogowski coils 500, the normal line at the center of the winding section direction.
  • the center of the double-sided PCB opening Rogowski coil 500 and the ray direction of the center of the winding section are approximately perpendicular, that is, the magnetic lines of the center of each constituent unit of the two double-sided PCB-opening Rogowski coils 500, the tangential direction at the center of the winding section .
  • FIG. 1 A, Figure 1 1 B, Figure 1 1 C the first component of the half coil 501 of the two double-sided PCB-opened Rogowski coils 500 is provided with an external access point 508, connecting the first component The incoming line of the first turns of the coil 503 of the unit.
  • An external access point 507 is disposed on the first constituent unit of the half coil 501 of the two double-sided PCB-opened Rogowski coils 500, and the first winding of the coil 504 of the other group of opposite winding directions of the first constituent unit is connected. The incoming line.
  • Figure 12 is a partial detail of the left side of a two-sided PCB open Rogowski half coil in accordance with an embodiment of the present invention.
  • Figure 12A shows the top and bottom stacks of the left side of the two half-sided PCB-opened Rogowski half coils
  • Figure 12B shows the top left side of the two double-sided PCB-opened Rogowski half coils
  • Figure 12C shows the bottom part of the left side of the two-sided PCB-opened Rogowski half-coil.
  • the exit line of the via 702 of the coil 503 is opposite to the winding direction of the other set of windings.
  • the outgoing lines of the vias 703 of the coil 504 are directly connected through the wiring 704 to realize a series connection between the two sets of coils 503 and 504 having opposite winding directions of the half coil 501 of the two double-sided PCB-opened Rogowski coils 500.
  • each of the PCBs has a first coil and a second coil. Part of the coil.
  • the multi-block PCB Rogowski coil which can resist external magnetic field interference, is composed of two half PCB Rogowski coils, and each half of the PCB Rogowski coil is formed by stacking N blocks of PCB.
  • Each half of the PCB Rogowski coil has two signal outputs, a first signal output and a second signal output.
  • the first external access point and the third external access point are the start point and the end point of the first coil on the first PCB to the N-1 PCB, respectively, and the second external access point and the fourth external access point are respectively It is the start and end points of the second coil on the first PCB to the N-1 PCB.
  • Two external access points are provided on the Nth PCB of each half of the PCB Rogowski coil: a first external access point, a second external access point, and a first external access point is the starting point of the first coil on the Nth PCB.
  • the second external access point is the starting point of the second coil on the Nth PCB.
  • the first external access point on the first PCB of each half of the PCB Rogowski coil is the first signal output
  • the second external access point on the first PCB is the second signal output.
  • the third external access point of the previous PCB in the stacked adjacent PCB of each half of the PCB Rogowski coil is connected to the first external access point on the next PCB to realize the first coil portion and the next PCB on the previous PCB.
  • the first coil portions are connected in series to form a complete first coil.
  • the fourth external access point of the previous PCB in the stacked adjacent PCB of each half of the PCB Rogowski coil is connected to the second external access point on the next PCB to realize the second coil portion and the next PCB on the previous PCB.
  • the second coil portions on the top are connected in series to form a complete second coil.
  • the first coil and the second coil of each half of the PCB Rogowski coil are directly connected in series on the Nth PCB to form half of the plurality of PCB open Rogowski coils capable of resisting external magnetic field interference.
  • the two half PCB Rogowski coils of the plurality of PCB open Rogowski coils have two connection modes: the first signal output end of the two half PCB Rogowski coils is directly connected, and the second signal output end of the two half PCB Rogowski coils serves as a plurality of PCB openings Roche.
  • the two signal output ends of the coil are the first signal output end and the second signal output end respectively; the second signal output end of the two half PCB Rogowski coils is directly connected, and the first signal output end of the two half PCB Rogowski coils is used as a plurality of blocks.
  • the two signal output ends of the PCB open Rogowski coil are the first signal output end and the second signal output end, respectively.
  • Each PCB of the plurality of PCB-opened Rogowski coils is formed by connecting a plurality of identical constituent units in series, and each of the constituent units includes a coil of each of the first coil and the second coil, and the two coils are tightly connected. Adjacent. Among them, the two turns of the wire are closely adjacent. It can be understood as follows: The minimum spacing between the two turns is equal to the minimum safe spacing of the PCB.
  • the minimum safe spacing of the PCB is related to the PCB process. For example, the minimum safe spacing of the PCB is 6mi l (mil), ie 0. 1524mm (mm).
  • each of the first coils of each of the PCBs of the plurality of PCB-opened Rogowski coils includes: an incoming wire, a winding wire, an outgoing wire, and an outgoing wire and an outgoing wire, respectively, for connecting the previous constituent unit and the next one
  • the constituent unit belongs to the coil of the first coil, and the winding is surrounded by wirings located in different layers and via holes between different layers.
  • a coil of the second coil of each constituent unit of each PCB of the plurality of PCB-opened Rogowski coils includes: an incoming wire, a winding wire, an outgoing wire, and an outgoing wire and an outgoing wire respectively for connecting the previous constituent unit and the next component
  • the unit belongs to the turns of the second coil, which is surrounded by wires located in different layers and vias between different layers. Specifically, the top layer wiring and the bottom layer wiring path coincide, and the cross section surrounded by the top layer wiring, the bottom layer wiring, and the two via holes is a rectangle.
  • the first PCB of the plurality of PCB-open Rogowski coils is connected to the first coil of the first coil of the first component of the Nth PCB, and the first PCB to the first external access point of the Nth PCB.
  • the incoming line of one turn of the second coil of the first component of the first PCB to the Nth PCB is connected to the second external access point of the first PCB to the Nth PCB.
  • the first coil to the first coil of the first PCB to the first coil of the first coil is connected to the third external access point of the first PCB to the N-1 PCB, the first PCB to the first
  • the outlet of one turn of the second coil of the last component of the N-1 PCB is connected to the fourth external access point of the first PCB to the N-1 PCB.
  • the line of one turn of the first coil of the last component of the Nth PCB is directly connected to the line of one turn of the second coil of the last component of the Nth PCB, and the first coil is realized. And the series connection of the second coil on the Nth PCB.
  • the winding line of each of the two turns of the constituent unit is perpendicular to the surface of the PCB, and the cross section of the winding is located on the cross section of the PCB, and is wound.
  • the routing paths coincide in a direction perpendicular to the surface of the PCB.
  • the center of each component unit on each PCB is evenly distributed on a magnetic field line of the magnetic field generated by the current to be measured, and the winding cross-section direction of all the two turns of the constituent unit Approximating along the normal direction of the magnetic field lines passing through the center of the winding section,
  • the winding section having the two turns of the unit is approximately perpendicular to the tangential direction of the magnetic lines passing through the center of the winding section (ie, the direction of the magnetic field strength).
  • the PCB board is a double-sided PCB, and the first coil and the second coil are located on the upper and lower sides of the PCB board. Therefore, the plurality of PCB open Rogowski coils may be referred to as a plurality of double-sided PCB open Rogowski coils.
  • each of the double-sided PCB open Rogowski coils capable of resisting external magnetic field interference
  • two sets of coils having opposite winding directions are respectively connected, which are a first coil and a second coil, respectively, and each of the double-sided PCBs has a first a coil and a portion of the second coil.
  • the plurality of double-sided PCB open Rogowski coils capable of resisting external magnetic field interference are specifically composed of two half PCB Rogowski coils, and each half of the PCB Rogowski coil is formed by stacking N double-sided PCBs.
  • Each half of the PCB Rogowski coil has two signal outputs, a first signal output and a second signal output.
  • the first external access point and the third external access point are the start point and the end point of the first coil on the first PCB to the N-1 PCB, respectively, and the second external access point and the fourth external access point are respectively The start and end points of the second coil on the first PCB to the N-1 PCB.
  • Two external access points are provided on the Nth PCB of each half of the PCB Rogowski coil: a first external access point, a second external access point, and a first external access point is the starting point of the first coil on the Nth PCB, The second external access point is the starting point of the second coil on the Nth PCB.
  • the first external access point on the first PCB of each half of the PCB Rogowski coil is the first signal output
  • the second external access point on the first PCB is the second signal output.
  • the third external access point of the previous PCB in the stacked adjacent PCB of each half of the PCB Rogowski coil is connected to the first external access point on the next PCB to realize the first coil portion and the next PCB on the previous PCB.
  • the series connection of the first coil portions forms a complete first coil.
  • the fourth external access point of the previous PCB in the stacked adjacent PCB of each half of the PCB Rogowski coil is connected to the second external access point on the next PCB to realize the second coil portion and the next PCB on the previous PCB.
  • the series connection of the second coil portions forms a complete second coil.
  • the first coil and the second coil of each half of the PCB Rogowski coil are directly connected in series on the Nth PCB to form a half of a plurality of double-sided PCB-open Rogowski coils capable of
  • the two-half PCB Rogowski coil of the multi-sided double-sided PCB Rogowski coil has two connection modes: the first signal output end of the two half PCB Rogowski coils is directly connected, and the second signal output end of the two half PCB Rogowski coils is used as a plurality of double
  • the two signal output ends of the surface PCB Rogowski coil are respectively the first signal output end and the second signal output end; the second signal output ends of the two half PCB Rogowski coils are directly connected, and the first signal output of the two half PCB Rogowski coils
  • the two signal output ends of the Roche coil of the double-sided PCB opening are respectively the first signal output end and the second signal output end.
  • Each of the double-sided PCBs of the plurality of double-sided PCB-opened Rogowski coils is formed by connecting a plurality of identical constituent units in series, and each of the constituent units includes a coil of each of the first coil and the second coil. The loops are close together. Among them, the two turns of the wire are closely adjacent. It can be understood as follows: The minimum spacing between the two turns is equal to the minimum safe spacing of the PCB.
  • the minimum safe spacing of the PCB is related to the PCB process. For example, the minimum safe spacing of the PCB is 6mi l (mil), ie 0. 1524mm (mm).
  • the plurality of coils of the first coil of each of the constituent units of the double-sided PCB of the double-sided PCB-opened Rogowski coil include: an incoming wire, a winding wire, an outgoing wire, and an outgoing wire and an outgoing wire respectively for connecting the previous component
  • the unit and the next constituent unit belong to the coil of the first coil, and the winding is surrounded by the wiring between the top and bottom layers and the via between the top and bottom layers.
  • a plurality of double-sided PCB-opened Rogowski coils each of the double-sided PCBs of each of the second coils of the constituent units of the second coil comprises: an incoming line, a winding, an outgoing line, an incoming line and an outgoing line respectively for connecting the previous constituent unit And the next constituent unit belonging to the second coil, the winding is surrounded by the wiring between the top and bottom layers and the via between the top and bottom layers.
  • the top layer wiring and the bottom layer wiring path coincide, and the cross section surrounded by the top layer wiring, the bottom layer wiring, and the two via holes is a rectangle.
  • the first PCB of the plurality of double-sided PCB-opened Rogowski coils is connected to the first coil of the first coil of the first component of the Nth PCB and the first coil
  • the PCB is connected to the first external access point of the Nth PCB, and the first PCB to the second coil of the first component of the Nth PCB is connected to the first coil to the second PCB to the second PCB.
  • External access points are connected.
  • the first coil to the first coil of the Nth PCB is connected to the first coil of the first coil to the third external access point of the first PCB to the N-1 PCB, the first PCB to the first
  • the exit line of one turn of the second coil of the last component of the N-1 PCB is connected to the fourth external access point of the first PCB to the N-1 PCB.
  • the exit line of one turn of the first coil of the last component of the Nth PCB is directly connected to the exit line of one turn of the second coil of the last component of the Nth PCB, and the first coil is realized. And the series connection of the second coil on the Nth PCB.
  • the winding line of each of the two turns of the constituent unit is perpendicular to the surface of the double-sided PCB, and the cross section of the winding is located on the double-sided PCB. In cross section, the top and bottom routing paths of the windings coincide in a direction perpendicular to the surface of the double-sided PCB.
  • the center of each component unit on each double-sided PCB is evenly distributed on a magnetic line of the magnetic field generated by the current to be measured, and all the constituent units are two turns of the coil.
  • the winding cross-sectional direction is approximately along the normal direction of the magnetic flux passing through the center of the winding cross-section, and the winding cross-section of all the two turns of the constituent unit and the tangential direction of the magnetic flux passing through the center of the winding cross-section (ie, the direction of the magnetic field strength) are approximately perpendicular.
  • FIG. 13 shows a plurality of double-sided PCB open Rogowski coils 500 to 1st to N-1 double-sided PCBs laminated by N-layer double-sided PCBs according to an embodiment of the present invention, which is suitable for measuring vertical through PCBs.
  • the current flowing through the current-carrying conductor 1 13 at the center of the open Rogowski coil 500, the alternating magnetic field line generated by the current is a circle centered on the center of the PCB-opened Rogowski coil 500.
  • FIG. 13A shows a stack of a top layer and a bottom layer of a plurality of double-sided PCB-opened Rogowski coils 500 from the N-layer double-sided PCB, the first layer to the N-1th double-sided PCB, as shown in FIG.
  • FIG. 13B It is a top layer of a plurality of double-sided PCB-opened Rogowski coils 500 from the N-layer double-sided PCB, and a top layer to the N-1th double-sided PCB, and FIG. 13C is a laminate of N-layer double-sided PCBs.
  • a plurality of double-sided PCB-opened Rogowski coils of N-layer double-sided PCBs The first layer to the N-1th double-sided PCB includes two half-sided PCB Rogowski coils, which are a coil 501 and a coil 502, respectively.
  • the coil 501 includes two sets of coils having opposite winding directions: a coil 503 and a coil 504, and the coil 503 and the coil 504 constitute a half-sided PCB Rogowski coil 501.
  • the coil 502 includes two sets of coils having opposite winding directions: a coil 505 and a coil 506, the coil 505 and the coil 506 forming a half-sided PCB Rogowski coil 502.
  • the coil 501 is provided with four external access points: 507, 508, 517, 518.
  • the external access point 508 serves as the starting point for the coil 503, and the external access point 517 serves as the end point of the coil 503.
  • the external access point 507 serves as the starting point for the coil 504 and the external access point 518 serves as the end point of the coil 504.
  • Coil 502 is provided with four external access points: 509, 510, 519, 520.
  • the external access point 510 serves as the starting point for the coil 505 and the external access point 519 serves as the end point of the coil 505.
  • the external access point 509 serves as the starting point for the coil 506 and the external access point 520 serves as the end point of the coil 506.
  • the coil 501 is formed by connecting a plurality of identical constituent units in series, as shown in Fig. 13A as a constituent unit 51 1 .
  • the center of the constituent unit 51 1 and the center of the other constituent units are located on a circular magnetic line generated by the current flowing through the current-carrying conductor 1 13 , and the respective constituent units are evenly distributed. This circular magnetic line.
  • Each constituent unit of the coil 501 includes two sets of coils having opposite winding directions: one coil ⁇ of the coil 503 and the coil 504, and the constituent unit 51 1 includes one turn 513 of the coil 503, one turn of the coil 504 Line ⁇ 514, the two turns are closely adjacent.
  • the top portion 521 of the turn 513 and the top portion 522 of the turn 514 are in close proximity.
  • the bottom portion 526 of the turn 513 of the constituent unit 51 1 and the bottom portion 527 of the turn 514 are shown in Fig. 13C.
  • the bottom portion 526 of the turns 513 and the bottom portion 527 of the turns 514 are closely adjacent.
  • the coil 502 is formed by connecting a plurality of identical constituent units in series, as shown in Fig. 13A as a constituent unit 512. As shown in FIG. 13A, FIG. 13B, and FIG. 13C, the center of the constituent unit 512, and the center of the other constituent units, are located on a circular magnetic line generated by the current flowing through the current-carrying conductor 1, and the respective constituent units are evenly distributed. A circular magnetic line.
  • Each constituent unit of the coil 502 includes two sets of coils having opposite winding directions: one coil ⁇ of the coil 505 and the coil 506, and the constituent unit 512 includes a coil 515 of the coil 505, and a loop of the coil 506. ⁇ 516, the two turns are close together.
  • the top portion 523 of the turn 515 of the constituent unit 512 and the top portion 524 of the turn 516 are shown in Fig. 13B.
  • the top portion 523 of the turn 515 and the top portion 524 of the turn 516 are in close proximity.
  • the bottom portion 528 of the turn 515 of the constituent unit 512 shown in Fig. 13C is the bottom portion 529 of the turn 516.
  • the bottom portion 528 of the turn 515 and the bottom portion 529 of the turn 516 are closely adjacent.
  • FIG. 14 is a diagram showing a plurality of double-sided PCB-opening Rogowski coil 500 N-layer double-sided PCBs laminated by N-layer double-sided PCBs in accordance with an embodiment of the present invention.
  • 14A shows a stack of a top and bottom layer of a plurality of double-sided PCB-opened Rogowski coils 500 N-layer double-sided PCB formed by laminating N-layer double-sided PCBs
  • FIG. 14B is a two-layer double-sided layer.
  • PCB double-sided PCB open Rogowski coil 500 The top layer of the Nth double-sided PCB, shown in Figure 14C is a multi-sided double-sided PCB open Rogowski coil 500 N The bottom layer of the layer double-sided PCB.
  • the Nth double-sided PCB includes two half-sided PCB Rogowski coils, respectively It is a coil 601 and a coil 602.
  • the coil 601 includes two sets of coils having opposite winding directions: a coil 603 and a coil 604, and the coil 603 and the coil 604 constitute a half-sided PCB Rogowski coil 601.
  • the coil 602 includes two sets of coils having opposite winding directions: a coil 606 and a coil 606, the coil 606 and the coil 606 forming a half-sided PCB Rogowski coil 602.
  • Coil 601 is provided with two external access points: 607, 608.
  • the external access point 608 serves as the starting point for the coil 603 and the external access point 607 serves as the starting point for the coil 604.
  • Coil 602 is provided with two external access points: 609, 610.
  • the external access point 610 serves as the starting point for the coil 605 and the external access point 609 serves as the starting point for the coil 606.
  • the coil 601 is formed by connecting a plurality of identical constituent units in series, as shown in Fig. 14A as a constituent unit 61 1. As shown in Fig. 14A, Fig. 14B, and Fig. 14C, the center of the constituent unit 61 1 and the center of the other constituent units are located on a circular magnetic line generated by the current flowing through the current-carrying conductor 1 13 , and the respective constituent units are evenly distributed. This circular magnetic line.
  • Each constituent unit of the coil 601 includes two sets of coils having opposite winding directions: one coil ⁇ of the coil 603 and the coil 604, and the constituent unit 61 1 includes one turn 613 of the coil 603, one turn of the coil 604 Line ⁇ 614, the two turns are close together.
  • the top portion 617 of the turn 613 and the top portion 618 of the turn 614 are closely adjacent.
  • the bottom portion 621 of the turn 613 of the constituent unit 61 1 shown in Fig. 14C is the bottom portion 622 of the turn 614.
  • the bottom portion 621 of the turn 613 and the bottom portion 622 of the turn 614 are closely adjacent.
  • the coil 602 is formed by connecting a plurality of identical constituent units in series, as shown in Fig. 14A as a constituent unit 612. As shown in FIG. 14A, FIG. 14B, and FIG. 14C, the center of the constituent unit 612, and the center of the other constituent units, are located on a circular magnetic line generated by the current flowing through the current-carrying conductor 13, and the constituent units are uniformly distributed here. A circular magnetic line.
  • Each constituent unit of the coil 602 includes two sets of coils having opposite winding directions: one coil ⁇ of the coil 605 and the coil 606, and the constituent unit 612 includes a loop 615 of the coil 605, and a loop of the coil 606 ⁇ 616, the two turns are close together.
  • the top portion 619 of the turn 615 of the constituent unit 612 shown in Fig. 14B the top portion 620 of the turn 616.
  • the top portion 619 of the turn 615 is closely adjacent to the top portion 620 of the turn 616.
  • the bottom portion 623 of the turn 615 of the constituent unit 612 shown in Fig. 14C is the bottom portion 624 of the turn 616.
  • the bottom portion 623 of the turn 615 and the bottom portion 624 of the turn 616 are closely adjacent.
  • Figure 15 is a diagram showing the right side detail of a plurality of double-sided PCB-opened Rogowski coils 500-half of the first to N-1 double-sided PCBs laminated by N-layer double-sided PCBs in accordance with an embodiment of the present invention.
  • Figure 15A shows a stack of top and bottom layers of a plurality of double-sided PCB-opened Rogowski coils 500-half of the first to N-1 double-sided PCBs laminated by N-layer double-sided PCBs, as shown in Fig. 15B.
  • the top layer of the first to N-1 double-sided PCBs of the plurality of double-sided PCB-opened Rogowski coils 500-half of the N-layer double-sided PCB is laminated, and the N-layer double-sided PCB is laminated as shown in FIG. 15C.
  • a plurality of double-sided PCB-opening Rogowski coils 500 are half of the bottom layers of the first to N-1 double-sided PCBs.
  • the stack of the top and bottom layers of one of the constituent units 700 of the coil 501 shown in Fig. 15A includes a laminated portion of one turn of the coil 503, and a turn of the coil 504 of the other winding direction.
  • the laminated portion of the coil ⁇ 71 1 of the coil 503 includes: an incoming wire 701, a wiring 707, a via 709, a via 703, and an outgoing line 705.
  • the laminated portion of the coil 504 of the coil 504 includes: an incoming line 702, a wiring 708, a via 710, a via 704, and an outgoing line 706.
  • the top layer of one of the constituent units 700 of the coil 501 shown in Fig. 15B includes the top portion of one turn of the coil 503, and the top portion of the loop 712 of the coil 504 opposite to the other winding direction.
  • the top portion of the coil 503 71 of the coil 503 includes: an incoming line 701, a wiring 713, a via 709, a via 703, and an outgoing line 705.
  • the bottom layer of a constituent unit 700 of the coil 501 shown in Fig. 15C includes the bottom portion of one turn of the coil 503, and the bottom portion of the loop 712 of the coil 504 opposite to the other winding direction.
  • the bottom portion of the coil 503 71 1 of the coil 503 includes: a via 709, a wiring 715, and a via 703.
  • the rectangular winding portion of one turn of the coil 503 is composed of a wiring 713, a via 709, a wiring 715, a via 704, and a top wiring 713 of a rectangular winding portion. And the underlying wiring 715 are overlapped in a direction perpendicular to the surface of the PCB.
  • Another rectangular winding portion of one turn of the coil 504 of the opposite winding direction of the winding 504 is composed of a wiring 716, a via 710, a wiring 714, and a via 704, and the bottom of the rectangular winding portion
  • the layer wiring 716 and the top wiring 714 are overlapped in a direction perpendicular to the surface of the PCB.
  • the center of the plurality of double-sided PCB-opened Rogowski coils 500 and the ray direction of the center of the winding section, that is, the magnetic lines of the center of each constituent unit of the plurality of double-sided PCB-opened Rogowski coils 500, at the center of the winding section The normal direction of the position.
  • the center of the plurality of double-sided PCB-opened Rogowski coils 500 and the center of the winding section are approximately perpendicular, that is, the magnetic lines of the center of each of the plurality of double-sided PCB-opened Rogowski coils 500, at the center of the winding section The tangential direction of the position.
  • the first constituent unit of the coil 501 is provided with an external access point 508 for connecting the incoming line of the first one of the coils 503 of the first constituent unit.
  • An external access point 507 is disposed on the first constituent unit of the coil 501 to connect the incoming line of the first one of the coils 504 of the other group of the opposite constituent windings of the first constituent unit.
  • Figure 16 is a partial detail of the left side of a plurality of double-sided PCB-opened Rogowski coils 500-half of the N-th double-sided PCB laminated by N-layer double-sided PCBs in accordance with an embodiment of the present invention.
  • Figure 16A shows a stack of top and bottom layers of a left side of a plurality of double-sided PCB-opened Rogowski coils 500-half of a N-sided double-sided PCB, as shown in Fig. 16B. It is a multi-sided double-sided PCB-opened Rogowski coil 500 made up of N-layer double-sided PCBs—the top part of the left side of the N-th double-sided PCB.
  • the 16C is a stack of N-layer double-sided PCBs. Multiple double-sided PCB open Rogowski coils 500—half of the N-sided double-sided PCB on the left side of the bottom layer.
  • the outgoing line of the hole 802 and the outgoing line of the via 803 of the coil 604 opposite to the other winding direction are directly connected through the top layer wiring 804, and a plurality of double-sided PCB open Rogowski coils 500 formed by laminating N-layer double-sided PCBs are realized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

本发明公开了PCB罗氏线圈包括两组串联的绕线方向相反的第一线圈和第二线圈，第一线圈和第二线圈分别包含多圈线匝，第一线圈的一圈线匝包括进线、绕线和出线，第一线圈的各圈线匝的绕线之间平行设置，绕线分别布置于PCB板的上下两面上，进线穿过PCB板上的过孔与绕线连接，绕线穿过过孔并与出线连接，出线还与第一线圈的下一圈线匝的进线连接；第二线圈的一圈线匝包括进线、绕线和出线，第二线圈的各圈线匝的绕线之间平行设置，绕线分别布置于PCB板的上下两面上，进线与绕线连接且绕线穿过PCB板上的一过孔通过另一过孔引出后与出线连接，出线还与第二线圈的下一圈线匝的进线连接。更好地消除外界磁场干扰，提高罗氏线圈抗外界干扰能力。

Description

一种 PCB罗氏线圈
本申请要求了 2013 年 6 月 18 日提交的、 申请号为 201310239226. 2、 发明名称为 "一种抗磁场干扰单块 PCB 闭合罗氏线圈设计方法与实现"， 2013年 7月 11 日提交的、 申请号为 201310289012. 6、 发明名称为 "一种抗磁场干 扰多块 PCB闭合罗氏线圈设计方法与实现"， 2013年 7月 26日提交的、 申请号为 201310318279. 3、 发明名称为 "一 种抗磁场干扰两块 PCB开口罗氏线圈设计方法与实现"， 2013 年 7月 26 日提交的、 申请号为 201310318277. 4、 发 明名称为 "一种抗磁场干扰多块 PCB 开口罗氏线圈设计方法与实现" 的中国申请的优先权， 其全部内容通过引用结 合在本申请中。 技术领域
本发明涉及电子技术领域， 尤其涉及一种 PCB (印刷电路板） 罗氏线圈。 发明背景
罗氏 (Rogowski)线圈是将导线均匀地绕在截面均匀的非磁性材料的框架上形成的线圈。 罗氏线圈因其具有重量 轻、 频带宽、 线性度好且无磁饱和现象等特点， 已普遍应用于电流测量装置中。 罗氏线圈依据其测量时是否可以打 开， 可以分成闭合罗氏线圈和开口罗氏线圈。 图 1所示的是闭合罗氏线圈。
闭合罗氏线圈 100包括如下部分：
( 1 ) 信号输出端 125和信号输出端 130;
(2 ) 从信号输出端 130绕到环形绕组终点 120的环形绕组 110;
(3 ) 从环形绕组终点 120沿环形绕组中心到信号输出端 125的回线匝 115。
应用闭合罗氏线圈 100测量电流时， 需要先将载流导体 105穿过闭合罗氏线圈 100。 为了保证测量精度， 需要让 载流导体 105垂直穿过闭合罗氏线圈 100的中心， 载流导体 105的中心和闭合罗氏线圈 100的中心重合。 闭合罗氏 线圈 100环绕在载流导体 105周围，当待测交流电流 I (t)流过载流导体 105时，待测交流电流 I (t)会在载流导体 105 周围产生交流磁场， 磁力线近似为以载流导体 105中心为圆心的圆， 闭合罗氏线圈 100环形绕组 110各圈线匝中心 就位于其中的一条圆形磁力线上。 闭合罗氏线圈 100环形绕组 110各圈线匝对应的截面积相等， 环形绕组 110各圈 线匝截面方向和过该截面中心的磁力线法线方向 （即该截面中心到载流导体 105 中心半径方向） 一致， 截面和该圆 形磁力线的切线方向垂直。这样可以保证闭合罗氏线圈环形绕组的各个线匝的磁通 Kt)近似相等， 而且该磁通和电 流成正比。
O,.(i) = L - /( 1)
待测交流电流 I (t)在闭合罗氏线圈 100环形绕组所包围的体积内产生磁通的变化， 可以被闭合罗氏线圈 100转 换成与各个线匝总磁通微分成比例的电压信号， 就是闭合罗氏线圈 100的输出端 125和输出端 130之间的输出电压 信号 V (t)。 at
简化之后可以得到， 闭合罗氏线圈输出电压信号 v (t)近似与交流电流 I (t)的微分成比例。
V(t) = -M . ^ 3)
dt
对闭合罗氏线圈输出电压信号 V (t)进行积分， 就可以得到和交流电流 I (t)成比例的信号， 这就是闭合罗氏线圈 测量交流电流的原理。
Figure imgf000004_0001
闭合罗氏线圈测量电流精度比较高， 测量信号带宽大， 可以用较低的成本实现电气隔离测量， 耐受电流能力几 乎无限大， 适用于具有固定位置载流导体电流的精确测量， 可以应用于继电保护等领域。
闭合罗氏线圈 100在进行电流测量时， 环形绕组 110除了拾取到待测交流电流 I (t)产生的磁场变化之外， 也会 拾取到空间中的其他交变干扰磁场。 比如当出现垂直于图 1中纸面方向的交变干扰磁场时， 环形绕组 110的起点 130 和终点 120之间就会产生由于交变干扰磁场产生的电压信号。
为了抵抗外界磁场对闭合罗氏线圈 100测量的影响， 闭合罗氏线圈 100除了环形绕组 110之外， 还会在环形绕 组 110的终点 120和信号输出端 125之间， 沿环形绕组 110的中心所在的圆， 绕制一圈回线匝 115。 这样当出现垂直 于图 1中纸面方向的交变干扰磁场时， 在回线匝 115的起点 120和终点 125之间会产生由于交变干扰磁场产生的电 压信号， 这个电压信号和环形绕组 110的起点 130和终点 120之间的电压信号， 大小近似相等， 极性相反， 两个电 压信号叠加的结果近似为 0。 这样当出现垂直于图 1 中纸面方向的交变干扰磁场时， 在闭合罗氏线圈 100 的输出端 125和输出端 130之间几乎不会产生干扰电压信号。
传统的绕线式闭合罗氏线圈如图 2 所示， 通过在圆环形非导磁材料的骨架上绕线而成， 包括了环形绕组和回线 匝。 在绕制时， 首先沿圆环形骨架中心所在位置放置一圈回线匝， 再绕制环形绕组。 外界干扰磁场在闭合罗氏线圈 的环形绕组上产生的电压信号， 和回线匝上产生的电压信号大小近似相等， 极性相反， 叠加之后的结果近似为 0， 这 样就降低了外界磁场对闭合罗氏线圈测量的影响。
传统的绕线式闭合罗氏线圈， 绕线通常是由人工或绕线机来完成， 很难做到线圈均匀绕制、 每匝线圈横截面相 等， 而且有易断线及层间电容增大误差等缺点， 在工业生产中参数一致性很难得到保证， 从而影响罗氏线圈测量电 流时的特性。
为了克服传统式闭合罗氏线圈的缺点， 出现了一种新型的由 PCB制成的闭合罗氏线圈， 简称 PCB闭合罗氏线圈， 如图 3中的圆环形的 PCB闭合罗氏线圈 305和 310所示。 PCB闭合罗氏线圈采用计算机辅助设计 (CAD)， 将印制导线 (后续简称为布线）均匀布置在 PCB上， 如图 3中的 PCB闭合罗氏线圈 305所示。 PCB闭合罗氏线圈 305的环形绕组 一圈线匝由顶层 （以面向读者的 PCB表面为 PCB的顶层， 和 PCB顶层反向的另一面为 PCB底层） 布线 315， 连接顶层 和底层的金属化孔 （后续简称为过孔） 320， 底层布线 325组成。 PCB闭合罗氏线圈 305各圈线匝以圆环 PCB中心为 中心， 沿圆环均匀布置， 线匝截面垂直于 PCB。
由于 PCB采用数字加工技术， 能从工艺上保证 PCB闭合罗氏线圈各圈线匝的线圈截面积相等， 制作出的 PCB闭 合罗氏线圈， 不仅克服了传统式闭合罗氏线圈的缺点， 而且灵敏度、 测量精度及性能稳定性都要优于传统的由铜线 绕制的线圈。 制作 PCB闭合罗氏线圈只需将其布线图在电脑上绘制， 简便快捷。 PCB闭合罗氏线圈由数控机床生产， 避免了繁琐的绕制过程， 可以缩短线圈加工的周期， 提高生产的效率。 大批量生产时 PCB 闭合罗氏线圈参数的分散 性较小， 同一批生产出的线圈， 其分布参数基本一致。
PCB闭合罗氏线圈 305在进行电流测量时， 环形绕组除了拾取到待测交流电流 I (t)产生的磁场变化之外， 也会 拾取到空间中的其他交变干扰磁场。 比如当出现垂直于图 3中纸面方向的交变干扰磁场时， PCB闭合罗氏线圈 305的 输出端 345和输出端 350之间会产生干扰电压信号。 为了抵抗外界磁场对 PCB闭合罗氏线圈 305测量的影响， 可以 采用两块 PCB闭合罗氏线圈串联， 组成一个组合 PCB闭合罗氏线圈， 如图 3所示， PCB闭合罗氏线圈 305和 PCB闭合 罗氏线圈 310串联， 组成组合 PCB闭合罗氏线圈 300。
PCB闭合罗氏线圈 310和 PCB闭合罗氏线圈 305的布线镜像布置，环形绕组绕线方向相反。 PCB闭合罗氏线圈 310 的一圈线匝由底层布线 330、过孔 335和顶层布线 340组成， 而对应的 PCB闭合罗氏线圈 305的一圈线匝由顶层布线 315、 过孔 320和底层布线 325组成。 同时底层布线 330和顶层布线 315、 过孔 335和过孔 320、 顶层布线 340和底 层布线 325位置完全一样。 其他各圈线匝也同样如此。
组成组合 PCB闭合罗氏线圈 300时， PCB闭合罗氏线圈 305和 PCB闭合罗氏线圈 310上下层叠放置， PCB闭合罗 氏线圈 305的输出端 345、 输出端 350， 和 PCB闭合罗氏线圈 310的输出端 355、 输出端 360， 位置完全重合。 PCB闭 合罗氏线圈 305的输出端 350和 PCB闭合罗氏线圈 310的输出端 360相连， 实现 PCB闭合罗氏线圈 305和 PCB闭合 罗氏线圈 310的串联。 组合 PCB闭合罗氏线圈 300的输出端 365和闭合罗氏线圈 305的输出端 345相连， 组合 PCB 闭合罗氏线圈 300的输出端 370和闭合罗氏线圈 310的输出端 355相连，
当出现垂直于图 3中纸面方向的交变干扰磁场时， PCB闭合罗氏线圈 305的输出端 345和输出端 350之间产生的 干扰电压信号， 禾 D PCB闭合罗氏线圈 310的输出端 355和输出端 360之间产生的干扰电压信号， 大小基本一致， 极 性相反。 在 PCB闭合罗氏线圈 305和 PCB闭合罗氏线圈 310串联情况下， 这两个干扰信号叠加的结果近似为 0。 这样 当出现垂直于图 1中纸面方向的交变干扰磁场时， 在组合 PCB闭合罗氏线圈 300的输出端 365和输出端 370之间几 乎不会产生干扰电压信号。
这种处理方法使用的两个 PCB 闭合罗氏线圈， 虽然距离很近， 但是在外界磁场作用下产生的干扰并不能完全一 致， 不可以完全抵消。 进一步的， 可以将这两个 PCB闭合罗氏线圈设计在单块 PCB上， 这样设计的两个 PCB闭合罗 氏线圈串联可以更好地实现降低外界磁场干扰的效果。 图 4A和图 4B所示的是在单块 PCB上的由两组绕线方向相反 的线圈串联而成的 PCB闭合罗氏线圈 (参见 HIGH PRECISION R0G0WSKI COIL, UNITED STATES PATENT, US 6 313 623 NOV. 6 2001 ) , 图 4A所示的是采用交错形式布线在单块 PCB上的由两组绕线方向相反的线圈串联而成的 PCB闭合罗 氏线圈，图 4B所示的是采用叉指形式布线在单块 PCB上的由两组绕线方向相反的线圈串联而成的 PCB闭合罗氏线圈。
图 4A和图 4B所示的是在单块 PCB上由两组绕线方向相反的线圈串联而成的 PCB闭合罗氏线圈方案， 虽然可以 更好地降低外界磁场干扰的效果， 但是这样设计的两个线圈仍然没有很好地达到完全一致， 不能很好地实现消除外 界磁场干扰的影响。
开口罗氏线圈由两半线圈组成， 当应用开口罗氏线圈测量载流导体中待测交流电流 I (t)时， 首先需要打开开口 罗氏线圈的两半线圈， 去包围载流导体， 随后闭合开口罗氏线圈的两半线圈， 让载流导体处于闭合后的开口罗氏线 圈的中心。 为了保证测量精度， 需要让载流导体垂直穿过开口罗氏线圈的中心， 载流导体的中心和开口罗氏线圈的 中心重合。 开口罗氏线圈环绕在载流导体周围， 当待测交流电流 I (t)流过载流导体时， 待测交流电流 I (t)会在载流 导体周围产生交流磁场， 磁力线近似为以载流导体中心为圆心的圆。
开口罗氏线圈也存在上述闭合罗氏线圈存在的两个线圈没有很好地达到完全一致， 不能很好地实现消除外界磁 场干扰的影响。
为此有必要提供一种更为一致的两组串联的绕线方向相反的 PCB 罗氏线圈， 能够更进一步地降低外界磁场对测 量的影响， 提高 PCB罗氏线圈对抗外界磁场干扰的能力。 发明内容
本发明的目的是提供一种 PCB罗氏线圈， 从而可以更好地消除外界磁场干扰的影响， 提高罗氏线圈的抗外界干扰 的能力。
本发明的目的是通过以下技术方案实现的：
一种 PCB罗氏线圈， 包括两组串联的绕线方向相反的第一线圈和第二线圈， 所述第一线圈和第二线圈分别包含多 圈线匝， 且：
所述第一线圈的一圈线匝包括： 第一进线、 第一绕线和第一出线， 所述第一线圈的各圈线匝的第一绕线之间平 行设置， 所述第一绕线分别布置于 PCB板的上下两面上， 所述第一进线穿过 PCB板上的第一过孔与第一绕线连接， 所 述第一绕线穿过第二过孔并与所述第一出线连接， 所述第一出线还与第一线圈的下一圈线匝的第一进线连接； 所述第二线圈的一圈线匝包括： 第二进线、 第二绕线和第二出线， 所述第二线圈的各圈线匝的第二绕线之间平 行设置， 所述第二绕线分别布置于 PCB板的上下两面上， 所述第二进线与第二绕线连接， 且所述第二绕线穿过 PCB板 上的第三过孔通过第四过孔引出后与第二出线连接， 所述第二出线还与第二线圈的下一圈线匝的第二进线连接； 所述第一过孔和第四过孔相邻设置， 所述第二过孔和第三过孔相邻设置， 且所述第一绕线与所述第二绕线之间 的距离小于相邻两圈线匝之间的距离。
由上述本发明提供的技术方案可以看出， 本发明实施例提供的技术方案提供更为一致的两组串联的绕线方向相 反的 PCB罗氏线圈， 能够更进一步地降低外界磁场对测量的影响， 提高 PCB罗氏线圈对抗外界磁场干扰的能力。 附图简要说明
为了更清楚地说明本发明实施例的技术方案， 下面将对实施例描述中所需要使用的附图作简单地介绍， 显而易 见地， 下面描述中的附图仅仅是本发明的一些实施例， 对于本领域的普通技术人员来讲， 在不付出创造性劳动的前 提下， 还可以根据这些附图获得其他附图。
图 1所示为闭合罗氏线圈。
图 2所示为带回线匝的传统的绕线式闭合罗氏线圈。
图 3所示为由两块镜像 PCB闭合罗氏线圈串联而成的组合 PCB闭合罗氏线圈。
图 4A所示为在单块 PCB上采用交错形式布线的两组串联的绕线方向相反的 PCB闭合罗氏线圈， 图 4B所示为在 单块 PCB上采用叉指形式布线的两组串联的绕线方向相反的 PCB闭合罗氏线圈。
图 5所示为本发明实施例单块双面 PCB闭合罗氏线圈。图 5A所示的是单块双面 PCB闭合罗氏线圈顶层和底层的 叠层， 图 5B所示的是单块双面 PCB闭合罗氏线圈的顶层， 图 5C所示的是单块双面 PCB闭合罗氏线圈的底层。
图 6所示为本发明实施例单块双面 PCB闭合罗氏线圈的局部细节。图 6A所示的是单块双面 PCB闭合罗氏线圈局 部的顶层和底层的叠层， 图 6B所示的是单块双面 PCB闭合罗氏线圈局部的顶层， 图 6C所示的是单块双面 PCB闭合 罗氏线圈局部的底层。
图 7所示为本发明实施例 N块双面 PCB闭合罗氏线圈中的第 1块到第 N 1块双面 PCB， 图 7A所示的是 N块双面 PCB闭合罗氏线圈中的第 1块到第 N 1块双面 PCB的顶层和底层的叠层， 图 7B所示的是 N块双面 PCB闭合罗氏线圈 中的第 1块到第 N 1块双面 PCB的顶层， 图 7C所示的是 N块双面 PCB闭合罗氏线圈中的第 1块到第 N 1块双面 PCB 的底层。
图 8所示为本发明实施例 N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB， 图 8A所示的是 N块双面 PCB闭合罗 氏线圈中的第 N块双面 PCB的顶层和底层的叠层， 图 8B所示的是 N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB的 顶层， 图 8C所示的是 N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB的底层。
图 9所示为本发明实施例 N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB的局部细节。图 9A所示的是 N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB局部的顶层和底层的叠层， 图 9B所示的是 N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB局部的顶层， 图 9C所示的是 N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB局部的底层。
图 10所示为本发明实施例两块双面 PCB开口罗氏线圈。图 10A所示的是两块双面 PCB开口罗氏线圈中的顶层和 底层的叠层， 图 10B所示的是两块双面 PCB开口罗氏线圈中的顶层， 图 10C所示的是两块双面 PCB开口罗氏线圈中 的底层。
图 11所示为本发明实施例两块双面 PCB开口罗氏线圈一半线圈的右侧局部细节。 图 11A所示的是两块双面 PCB 开口罗氏线圈一半线圈的右侧局部的顶层和底层的叠层， 图 11B所示的是两块双面 PCB开口罗氏线圈一半线圈的右 侧局部的顶层， 图 11C所示的是两块双面 PCB开口罗氏线圈一半线圈的右侧局部的底层。
图 12所示为本发明实施例两块双面 PCB开口罗氏线圈一半线圈的左侧局部细节。 图 12A所示的是两块双面 PCB 开口罗氏线圈一半线圈的左侧局部的顶层和底层的叠层， 图 12B所示的是两块双面 PCB开口罗氏线圈一半线圈的左 侧局部的顶层， 图 12C所示的是两块双面 PCB开口罗氏线圈一半线圈的左侧局部的底层。
图 13所示为本发明实施例由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈第 1层到第 N 1层双面 PCB 的。第 1层到第 N 1层双面 PCB包括了两块双面 PCB， 分别是层叠形成每一半多块双面 PCB开口罗氏线圈的第 1到第 N 1双面 PCB。 图 13A所示的是多块双面 PCB开口罗氏线圈第 1层到第 N 1层双面 PCB的顶层和底层的叠层， 图 13B 所示的是多块双面 PCB开口罗氏线圈第 1层到第 N 1层双面 PCB的顶层， 图 13C所示的是多块双面 PCB开口罗氏线 圈第 1层到第 N 1层的底层。
图 14所示为本发明实施例由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈第 N层双面 PCB。第 N层双面 PCB包括了两块双面 PCB， 分别是层叠形成每一半多块双面 PCB开口罗氏线圈的第 N双面 PCB。 图 14A所示的是多块 双面 PCB开口罗氏线圈第 N层双面 PCB的顶层和底层的叠层， 图 14B所示的是多块双面 PCB开口罗氏线圈第 N层双 面 PCB的顶层， 图 14C所示的是多块双面 PCB开口罗氏线圈第 N层的底层。
图 15所示为本发明实施例由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈一半的第 1到第 N 1双面 PCB 的右侧局部细节。 图 15A所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈一半的第 1到第 N 1双面 PCB的顶层和底层的叠层， 图 15B所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈一半的第 1到第 N 1双面 PCB的顶层，图 15C所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈一半的第 1到第 N 1双 面 PCB的底层。
图 16所示为本发明实施例由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈一半的第 N双面 PCB的左侧局 部细节。 图 16A所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈一半的第 N双面 PCB的左侧局部的 顶层和底层的叠层， 图 16B所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈一半的第 N双面 PCB的 左侧局部的顶层， 图 16C所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈一半的第 N双面 PCB的左 侧局部的底层。 实施本发明的方式
下面结合本发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描述， 显然， 所描述的实施 例仅仅是本发明一部分实施例， 而不是全部的实施例。 基于本发明的实施例， 本领域普通技术人员在没有做出创造 性劳动前提下所获得的所有其他实施例， 都属于本发明的保护范围。
本发明实施例提供一种 PCB罗氏线圈， 包括两组串联的绕线方向相反的第一线圈和第二线圈， 所述第一线圈和第 二线圈分别包含多圈线匝， 且：
所述第一线圈的一圈线匝包括： 第一进线、 第一绕线和第一出线， 所述第一线圈的各圈线匝的第一绕线之间平 行设置， 所述第一绕线分别布置于 PCB板的上下两面上， 所述第一进线穿过 PCB板上的第一过孔与第一绕线连接， 所 述第一绕线穿过第二过孔并与所述第一出线连接， 所述第一出线还与第一线圈的下一圈线匝的第一进线连接； 所述第二线圈的一圈线匝包括： 第二进线、 第二绕线和第二出线， 所述第二线圈的各圈线匝的第二绕线之间平 行设置， 所述第二绕线分别布置于 PCB板的上下两面上， 所述第二进线与第二绕线连接， 且所述第二绕线穿过 PCB板 上的第三过孔通过第四过孔引出后与第二出线连接， 所述第二出线还与第二线圈的下一圈线匝的第二进线连接； 所述第一过孔和第四过孔相邻设置， 所述第二过孔和第三过孔相邻设置， 且所述第一绕线与所述第二绕线之间 的距离小于相邻两圈线匝之间的距离。
作为多种可选方式， 所述第一线圈和第二线圈设置于单块 PCB板上组成单块 PCB闭合罗氏线圈； 或者， 所述第 一线圈和第二线圈设置于多块层叠而成的 PCB板上组成多块 PCB闭合罗氏线圈； 或者， 所述第一线圈和第二线圈设 置于两块 PCB板上组成两块 PCB开口罗氏线圈； 或者， 所述第一线圈和第二线圈设置于多块 PCB板上组成多块 PCB 开口罗氏线圈； 其中，
所述多块 PCB闭合罗氏线圈中， 多块 PCB板层叠设置， 且所述第一线圈和第二线圈的多圈线匝分别缠绕设置于 多块 PCB板中的每一块 PCB板上，设置有多圈线匝的各块 PCB板之间通过各块 PCB板上设置的外部接入点依次连接； 所述两块 PCB开口罗氏线圈中， 两块 PCB板分别为半圆环形 PCB板， 所述第一线圈和第二线圈的多圈线匝分别 缠绕设置于两块 PCB板上， 设置有多圈线匝的两块 PCB板上分别设置有两个外部接入点， 两块 PCB板之间通过各自 一个外部接入点连接， 两块 PCB板的另两个外部接入点分别作为两块 PCB板各自的信号输出端；
所述多块 PCB开口罗氏线圈中， 多块 PCB板层叠设置分别组成两组半圆环形 PCB板， 所述第一线圈和第二线圈 的多圈线匝分别缠绕设置于两组半圆环形 PCB板上， 在同一组半圆环形 PCB板中， 设置有多圈线匝的每块半圆环形 PCB板之间通过各自的外部接入点连接， 并将一块半圆环形 PCB板的另两个外部接入点中的一个作为与另一组半圆 环形 PCB板之间连接的点， 另一个作为本组半圆环形 PCB板的信号输出端；
上述多种可选方式中的一种方式为： 单块 PCB闭合罗氏线圈：
( a)所述第一线圈的一圈线匝和相邻的所述第二线圈的一圈线匝构成一个组成单元， 所述组成单元中的两圈线 匝紧密相邻， 若干个相同的组成单元串联；
禾 Π/或， （b ) 每个所述组成单元的第一线圈的第一进线和第一出线分别连接上一个组成单元和下一个组成单元 属于所述第一线圈的线匝， 所述第一绕线由位于顶层和底层的布线和顶层底层之间的第一过孔和第二过孔环绕而成； 每个所述组成单元的第二线圈的第二进线和第二出线分别连接上一个组成单元和下一个组成单元属于所述第二线圈 的线匝， 第二绕线由位于顶层和底层的布线和顶层底层之间的第三过孔和第四过孔环绕而成。
其中， 所述组成单元中的两圈线匝紧密相邻可以理解为： 所述组成单元中的两圈线匝之间的最小间距等于 PCB板 的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关， 如 PCB板的最小安全间距为 6mi l (密耳）， SPO. 1524mm (毫 米） 。
进一步的， 所述单块 PCB闭合罗氏线圈， 还可以：
( a) 设有两个信号输出端： 第一信号输出端和第二信号输出端， 和所述第一信号输出端相连的是所述第一线圈 的第一圈线匝的第一进线， 和所述第二信号输出端相连的是所述第二线圈的第一圈线匝的第二进线， 所述第一线圈 的最后一圈线匝的第一出线与所述第二线圈的最后一圈线匝的第二出线相连， 实现单块 PCB闭合罗氏线圈的第一线圈 和第二线圈之间的串联；
禾 Π/或， （b ) 所述第一线圈的各圈线匝的第一绕线围成的截面位于 PCB的横截面上， 所述第一线圈的各圈线匝的 第一绕线在垂直于 PCB表面的方向上重合； 所述第二线圈的各圈线匝的第二绕线围成的截面位于 PCB的横截面上， 所述第二线圈的各圈线匝的第二绕线在垂直于 PCB表面的方向上重合；
禾口 /或， （c) 所有组成单元的中心均匀分布在待测电流产生的磁场的一条磁力线上， 所有组成单元的第一线圈的 线匝的绕线围成的截面方向近似为通过该绕线截面中心的磁力线法线方向， 第一线圈的线匝的绕线围成的截面和通 过该绕线截面中心的磁力线切线方向近似垂直； 所有组成单元的第二线圈的线匝的绕线围成的截面方向近似为通过 该绕线截面中心的磁力线法线方向， 第二线圈的线匝的绕线围成的截面和通过该绕线截面中心的磁力线切线方向近 似垂直。
本发明实施例提供的技术方案提供更为一致的两组串联的绕线方向相反的 PCB罗氏线圈， 能够更进一步地降低外 界磁场对测量的影响， 提高 PCB罗氏线圈对抗外界磁场干扰的能力。
由于， PCB闭合罗氏线圈环形绕组拾取到的总磁通和截面积成正比， 环形绕组的截面积越大， 拾取到的总磁通变 化就会越大， 对于同样的待测电流， PCB闭合罗氏线圈的输出的信号也越大， PCB闭合罗氏线圈的检测灵敏度越高。
PCB闭合罗氏线圈环形绕组的截面积和 PCB厚度成正比， PCB厚度越大， PCB闭合罗氏线圈环形绕组的截面积越大， PCB闭合罗氏线圈的检测灵敏度越高。 为了提高 PCB闭合罗氏线圈的检测灵敏度， 可以提高 PCB厚度。 但是 PCB厚度 受制于 PCB的加工工艺， 不能无限制的增加， 同时随着 PCB厚度增加， PCB加工成本也会快速上升。 单块厚 PCB闭合 罗氏线圈的成本， 可以比多块薄 PCB组成的同样厚度的 PCB闭合罗氏线圈高很多。 从成本上考虑， 做单块厚 PCB闭 合罗氏线圈， 不如做多块薄 PCB组成的多块 PCB闭合罗氏线圈。
从而， 上述多种可选方式中的第二种方式为： 所述多块 PCB闭合罗氏线圈：
( a) 设有两个信号输出端： 第 1信号输出端和第 2信号输出端， N块层叠的 PCB板中， 所述第 1信号输出端和第 2 信号输出端所在的 PCB板为第 1 PCB， 与第 1 PCB相邻的 PCB板为第 2 PCB， 直到第 N PCB;
禾口 /或， （b ) 所述第 1 PCB到第 N-1 PCB上设置了 4个外部接入点： 第 1外部接入点、 第 2外部接入点、 第 3外部 接入点、 第 4外部接入点； 所述第 1外部接入点、 第 3外部接入点分别为所述第 1 PCB到第 N-1 PCB上第一线圈的起点 和终点， 所述第 2外部接入点、 第 4外部接入点分别为所述第 1 PCB到第 N-1 PCB上第二线圈的起点和终点； 所述第 N PCB上设置了两个外部接入点：第 1外部接入点、第 2外部接入点，所述第 1外部接入点为第 N PCB上第一线圈的起点， 所述第 2外部接入点为第 N PCB上第二线圈的起点；
禾口 /或， （c ) 所述第 1 PCB上的第 1外部接入点为所述第 1信号输出端， 所述第 1 PCB上的第 2外部接入点为所述 第 2信号输出端；
禾口 /或， （d)层叠的相邻 PCB板中上一块 PCB板的第 3外部接入点与下一块 PCB板上的第 1外部接入点相连， 实 现上一块 PCB上的第一线圈部分和下一块 PCB上的第一线圈部分的串联， 形成完整的第一线圈； 层叠的相邻 PCB板 中上一块 PCB板的第 4外部接入点与下一块 PCB板上的第 2外部接入点相连，实现上一块 PCB上的第二线圈部分和下 一块 PCB上的第二线圈部分的串联， 形成完整的第二线圈； 所述第一线圈和所述第二线圈在第 N PCB上直接串联起 来。
进一步的， 所述多块 PCB闭合罗氏线圈， 还可以：
( a)每块所述 PCB板中所述第一线圈的一圈线匝和相邻的所述第二线圈的一圈线匝构成一个组成单元， 若干个 相同的组成单元串联， 所述组成单元中的两圈线匝紧密相邻；
禾 Π/或， （b ) 每个组成单元的第一线圈的第一进线和第一出线分别用于连接上一个组成单元和下一个组成单元 属于第一线圈的线匝， 第一绕线由位于顶层和底层的布线和顶层、 底层之间的第一过孔和第二过孔环绕而成； 每个 组成单元的第二线圈的第二进线和第二出线分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线匝， 第二绕线由位于顶层和底层的布线和顶层、 底层之间的第三过孔和第四过孔环绕而成；
禾 Π/或， （c )第 1 PCB到第 N PCB的第 1个组成单元的第一线圈的一圈线匝的第一进线与第 1 PCB到第 N PCB的 第 1外部接入点相连， 第 1 PCB到第 N PCB的第 1个组成单元的第二线圈的一圈线匝的第二进线与第 1 PCB到第 N PCB的第 2外部接入点相连;第 1 PCB到第 N-1 PCB的最后 1个组成单元的第一线圈的一圈线匝的第一出线与第 1 PCB 到第 N-1 PCB的第 3外部接入点相连，第 1 PCB到第 N-1 PCB的最后 1个组成单元的第二线圈的一圈线匝的第二出线与 第 1 PCB到第 N-1 PCB的第 4外部接入点相连； 第 N PCB的最后 1个组成单元的第一线圈的一圈线匝的第一出线， 与 第 N PCB的最后 1个组成单元的第二线圈的一圈线匝的第二出线直接相连，实现第一线圈和第二线圈在第 N PCB上串 联；
禾 Π/或， （d) 每一个所述组成单元的两圈线匝的绕线围成的截面垂直于所述 PCB表面， 所述绕线围成的截面位 于所述 PCB的横截面上， 所述绕线的布线路径在垂直于所述 PCB表面的方向上重合；
和 /或， （e ) 每块所述 PCB上各个所述组成单元的中心均匀分布在待测电流产生的磁场的一条磁力线上， 所有 所述组成单元的两圈线匝的绕线截面方向沿通过该绕线截面中心的磁力线法线方向， 所有组成单元两圈线匝的绕线 截面和通过该绕线截面中心的磁力线切线方向近似垂直。
其中， 所述组成单元中的两圈线匝紧密相邻可以理解为： 所述组成单元中的两圈线匝之间的最小间距等于 PCB板 的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关， 如 PCB板的最小安全间距为 6mi l (密耳）， SPO. 1524mm (毫 米） 。
本发明实施例提供的技术方案提供更为一致的两组串联的绕线方向相反的 PCB罗氏线圈， 能够更进一步地降低外 界磁场对测量的影响， 提高 PCB罗氏线圈对抗外界磁场干扰的能力。
上述多种可选方式中的第三种方式为： 所述两块 PCB开口罗氏线圈：
( a) 每块所述 PCB板上设置了两个外部接入点： 第 1外部接入点、 第 2外部接入点； 每块所述 PCB板上的第 1外 部接入点为所述 PCB板上的第一线圈的起点， 所述 PCB板上的第 2外部接入点为所述 PCB板上的第二线圈的终点； 禾 Π/或， （b ) 两块所述 PCB板有两种连接方式： 两块所述 PCB板的第 1外部接入点直接相连， 两块所述 PCB板的 第 2外部接入点作为所述两块 PCB开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端； 或者， 所述两块 PCB板的第 2外部接入点直接相连， 所述两块 PCB的第 1外部接入点作为所述两块 PCB开口罗氏线圈的两个 信号输出端， 分别为第 1信号输出端和第 2信号输出端。
进一步的， 所述两块 PCB开口罗氏线圈， 还可以：
( a)所述两块 PCB开口罗氏线圈的每块 PCB板中所述第一线圈的一圈线匝和相邻的所述第二线圈的一圈线匝构 成一个组成单元， 若干个相同的组成单元串联， 所述组成单元中的两圈线匝紧密相邻；
禾 Π/或， （b ) 每个组成单元的第一线圈的第一进线和第一出线分别用于连接上一个组成单元和下一个组成单元 属于第一圈的线匝， 第一绕线由位于顶层和底层的布线和顶层、 底层之间的第一过孔和第二过孔环绕而成； 每个组 成单元的第二线圈的第二进线和第二出线分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线匝， 第 二绕线由位于顶层和底层的布线和顶层、 底层之间的第三过孔和第四过孔环绕而成；
禾 Π/或， （c ) ， 所述第 1信号输出端所在的 PCB板为第 1 PCB， 所述第 2信号输出端所在的 PCB板为第 2 PCB; 所述 第 1 PCB第 1个组成单元的第一线圈的一圈线匝的第一进线与所述第 1 PCB的第 1外部接入点相连， 所述第 1 PCB第 1 个组成单元的第二线圈的一圈线匝的第二进线与所述第 1 PCB的第 2外部接入点相连;所述第 2 PCB第 1个组成单元的 第一线圈的一圈线匝的第一进线与所述第 2 PCB的第 1外部接入点相连， 所述第 2 PCB第 1个组成单元的第二线圈的一 圈线匝的第二进线与所述第 2 PCB的第 2外部接入点相连；
禾 Π/或， （d) 所述第 1 PCB最后 1个组成单元的第一线圈的一圈线匝的第一出线， 与所述第 1 PCB最后 1个组成单 元的第二线圈的一圈线匝的第二出线直接相连， 实现所述第一线圈和所述第二线圈在第 1 PCB上的串联； 所述第 2 PCB的最后 1个组成单元的第一线圈的一圈线匝的第一出线， 与所述第 2 PCB的最后 1个组成单元的第二线圈的一圈 线匝的第二出线直接相连， 实现所述第一线圈和所述第二线圈在第 2 PCB上的串联；
和 /或， （e ) 每个所述组成单元的两圈线匝的绕线围成的截面垂直于所述 PCB表面， 所述绕线围成的截面位于 所述 PCB的横截面上， 所述绕线的布线路径在垂直于所述 PCB表面的方向上重合；
禾口 /或， （f ) 每块所述 PCB板上各个组成单元的中心均匀分布在待测电流产生的磁场的一条磁力线上， 所有组 成单元两圈线匝的绕线截面方向近似沿通过该绕线截面中心的磁力线法线方向， 所有组成单元两圈线匝的绕线截面 和通过该绕线截面中心的磁力线切线方向近似垂直。
其中， 所述组成单元中的两圈线匝紧密相邻可以理解为： 所述组成单元中的两圈线匝之间的最小间距等于 PCB板 的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关， 如 PCB板的最小安全间距为 6mi l (密耳）， SPO. 1524mm (毫 米） 。
本发明实施例提供的技术方案提供更为一致的两组串联的绕线方向相反的 PCB罗氏线圈， 能够更进一步地降低外 界磁场对测量的影响， 提高 PCB罗氏线圈对抗外界磁场干扰的能力。
由于， PCB罗氏线圈环形绕组拾取到的总磁通和截面积成正比， 环形绕组的截面积越大， 拾取到的总磁通变化就 会越大， 对于同样的待测电流， PCB罗氏线圈的输出的信号也越大， PCB罗氏线圈的检测灵敏度越高。 PCB罗氏线圈环 形绕组的截面积和 PCB厚度成正比， PCB厚度越大， PCB罗氏线圈环形绕组的截面积越大， PCB罗氏线圈的检测灵敏度 越高。 为了提高 PCB罗氏线圈的检测灵敏度， 可以提高 PCB厚度。 但是 PCB厚度受制于 PCB的加工工艺， 不能无限制的 增加， 同时随着 PCB厚度增加， PCB加工成本也会快速上升。 单块厚 PCB罗氏线圈的成本， 可以比多块薄 PCB组成的同 样厚度的 PCB罗氏线圈高很多。 从成本上考虑， 做单块厚 PCB罗氏线圈， 不如做多块薄 PCB组成的多块 PCB罗氏线圈。
从而， 上述多种可选方式中的第四种方式为： 所述多块 PCB开口罗氏线圈：
( a) 同一组半圆环形 PCB板由 N块 PCB板层叠而成， 每组半圆环形 PCB板设有两个信号输出端： 第 1信号输出端 和第 2信号输出端， 所述第 1信号输出端和第 2信号输出端所在的 PCB板为第 1 PCB， 与第 1 PCB相邻的 PCB为第 2 PCB, 直到第 N PCB;
禾 Π/或， （b ) 每组半圆环形 PCB板的第 1 PCB到第 N 1 PCB上设置了 4个外部接入点： 第 1外部接入点、 第 2外部接 入点、 第 3外部接入点、 第 4外部接入点， 所述第 1外部接入点、 第 3外部接入点分别为第 1 PCB到第 N 1 PCB上第一线 圈的起点和终点， 所述第 2外部接入点、 第 4外部接入点分别为第 1 PCB到第 N 1 PCB上第二线圈的起点和终点， 每组 半圆环形 PCB板的第 N PCB上设置了两个外部接入点：第 1外部接入点、第 2外部接入点，所述第 1外部接入点为第 N PCB 上第一线圈的起点， 所述第 2外部接入点为第 N PCB上第二线圈的起点；
禾 Π/或， （c ) 每组半圆环形 PCB板的第 1 PCB上的第 1外部接入点为第 1信号输出端， 第 1 PCB上的第 2外部接入点 为第 2信号输出端， 每组半圆环形 PCB板中层叠的相邻 PCB板中上一块 PCB板的第 3外部接入点与下一块 PCB板上的第 1 外部接入点相连， 实现上一块 PCB板上的第一线圈部分和下一块 PCB板上的第一线圈部分的串联， 形成完整的第一线 圈； 每组半圆环形 PCB板中的层叠的相邻 PCB板中上一块 PCB板的第 4外部接入点与下一块 PCB板上的第 2外部接入点 相连， 实现上一块 PCB板上的第二线圈部分和下一块 PCB板上的第二线圈部分的串联， 形成完整的第二线圈； 每一半 PCB罗氏线圈的第一线圈和第二线圈在第 N PCB上直接串联起来， 形成一组半圆环形 PCB板；
和 /或， （d)两组半圆环形 PCB板的第 1信号输出端直接相连， 两组半圆环形 PCB板的第 2信号输出端作为多块
PCB开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端； 或者， 两组半圆环形 PCB板的第 2信 号输出端直接相连， 两组半圆环形 PCB板的第 1信号输出端作为多块 PCB开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端。
进一步的， 所述多块 PCB开口罗氏线圈， 还可以：
( a)所述多块 PCB开口罗氏线圈的每块 PCB板中所述第一线圈的一圈线匝和相邻的所述第二线圈的一圈线匝构 成一个组成单元， 若干个相同的组成单元串联， 所述组成单元中的两圈线匝紧密相邻；
禾 Π/或， （b ) 每个组成单元的第一线圈的第一进线和第一出线分别用于连接上一个组成单元和下一个组成单元 属于第一线圈的线匝， 第一绕线由位于顶层和底层的布线和顶层和底层之间的第一过孔和第二过孔环绕而成； 每个 组成单元的第二线圈的第二进线和第二出线分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线匝， 第二绕线由位于顶层和底层的布线和顶层和底层之间的第三过孔和第四过孔环绕而成；
禾口 /或， （c )第 1 PCB到第 N PCB的第 1个组成单元的第一线圈的一圈线匝的第一进线与第 1 PCB到第 N PCB的第 1 外部接入点相连， 第 1 PCB到第 N PCB的第 1个组成单元的第二线圈的一圈线匝的第二进线与第 1 PCB到第 N PCB的第 2 外部接入点相连； 第 1 PCB到第 N 1 PCB的最后 1个组成单元的第一线圈的一圈线匝的第一出线与第 1 PCB到第 N 1 PCB 的第 3外部接入点相连， 第 1 PCB到第 N 1 PCB的最后 1个组成单元的第二线圈的一圈线匝的第二出线与第 1 PCB到第 N 1 PCB的第 4外部接入点相连； 第 N PCB的最后 1个组成单元的第一线圈的一圈线匝的第一出线， 与第 N PCB的最后 1个组 成单元的第二线圈的一圈线匝的第二出线直接相连， 实现第一线圈和第二线圈在第 N PCB上的串联；
禾 Π/或， （d)每一个组成单元两圈线匝的绕线围成的截面垂直于 PCB表面，绕线围成的截面位于 PCB的横截面上， 绕线的顶层和底层布线路径在垂直于 PCB表面的方向上重合；
禾 Π/或， （e ) 每一个组成单元的中心均匀分布在待测电流产生的磁场的一条磁力线上， 所有组成单元两圈线匝 的绕线截面方向近似沿通过该绕线截面中心的磁力线法线方向， 所有组成单元两圈线匝的绕线截面和通过该绕线截 面中心的磁力线切线方向近似垂直。
其中， 所述组成单元中的两圈线匝紧密相邻可以理解为： 所述组成单元中的两圈线匝之间的最小间距等于 PCB板 的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关，如 PCB板的最小安全间距为 6mi l (密耳）， SPO. 1524mm (毫 米） 。
本发明实施例提供的技术方案提供更为一致的两组串联的绕线方向相反的 PCB罗氏线圈， 能够更进一步地降低外 界磁场对测量的影响， 提高 PCB罗氏线圈对抗外界磁场干扰的能力。 为便于理解， 下面将分别对不同种类的罗氏线圈的具体实现方式进行详细说明。
(一）单块 PCB闭合罗氏线圈
在该能对抗外界磁场干扰的单块 PCB闭合罗氏线圈中， 包括两组串联的绕线方向相反的线圈： 第一线圈和第二 线圈， 第一线圈和第二线圈位于单块 PCB上， 第一线圈和第二线圈串联起来， 组成单块 PCB闭合罗氏线圈。
该能对抗外界磁场干扰的单块 PCB闭合罗氏线圈， 具体由若干个相同的组成单元串联而成， 每一个组成单元包 括了第一线圈的一圈线匝和第二线圈的一圈线匝， 这两圈线匝紧密相邻。 其中，两圈线匝紧密相邻可以理解为： 两圈 线匝之间的最小间距等于 PCB板的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关， 如 PCB板的最小安全间距 为 6mi l (密耳） ， gfl0. 1524mm (毫米） 。
单块 PCB闭合罗氏线圈的每一个组成单元的第一线圈的一圈线匝包括： 进线、 绕线、 出线， 进线和出线分别用 于连接上一个组成单元和下一个组成单元属于第一线圈的线匝， 绕线由位于不同层的布线和不同层之间的过孔环绕 而成。 具体的， 顶层布线和底层布线路径重合， 由顶层布线， 底层布线、 两个过孔环绕而成的绕线所围成的截面类 似一个矩形。单块 PCB闭合罗氏线圈的每一个组成单元的第二线圈的一圈线匝包括： 进线、绕线、 出线， 进线和出线 分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线匝， 绕线由位于不同层的布线和不同层之间的过 孔环绕而成。
该能对抗外界磁场干扰的单块 PCB闭合罗氏线圈设有两个信号输出端： 第一信号输出端和第二信号输出端， 和 第一信号输出端相连的是第一个组成单元的第一线圈的线匝的进线， 和第二信号输出端相连的是第一个组成单元的 第二线圈的线匝的进线。 和第一个组成单元相邻的是第二个组成单元， 以此类推， 直到最后一个组成单元。 最后一 个组成单元的第一线圈的线匝的出线， 和最后一个组成单元的第二线圈的线匝的出线直接相连， 实现单块 PCB闭合 罗氏线圈的第一线圈和第二线圈之间的串联。
该能对抗外界磁场干扰的单块 PCB闭合罗氏线圈， 每一个组成单元的第一线圈的线匝的绕线围成的截面垂直于 PCB表面， 绕线围成的截面位于 PCB的横截面上， 绕线的布线路径在垂直于 PCB表面的方向上重合。 每一个组成单 元的第二线圈的线匝的绕线围成的截面垂直于 PCB表面， 绕线围成的截面位于 PCB的横截面上， 绕线的布线路径在 垂直于 PCB表面的方向上重合。
该能对抗外界磁场干扰的单块 PCB闭合罗氏线圈， 所有组成单元的中心均匀分布在待测电流产生的磁场的一条 磁力线上。 所有组成单元的第一线圈的线匝的绕线截面方向近似为通过该绕线截面中心的磁力线法线方向， 第一线 圈的线匝的绕线截面和通过该绕线截面中心的磁力线切线方向 （即磁场强度方向）近似垂直。 所有组成单元的第二 线圈的线匝的绕线截面方向近似为通过该绕线截面中心的磁力线法线方向， 第二线圈的线匝的绕线截面和通过该绕 线截面中心的磁力线切线方向 （即磁场强度方向）近似垂直。
单块 PCB闭合罗氏线圈中， PCB板为双面 PCB， 第一线圈和第二线圈位于 PCB板的上下两面， 因此， 单块 PCB 闭合罗氏线圈可以称为单块双面 PCB闭合罗氏线圈。
该能对抗外界磁场干扰的单块双面 PCB闭合罗氏线圈中， 包括两组串联的绕线方向相反的线圈第一线圈和第二 线圈， 第一线圈和第二线圈位于单块双面 PCB上， 第一线圈和第二线圈串联起来， 组成单块双面 PCB闭合罗氏线圈。
该能对抗外界磁场干扰的单块双面 PCB闭合罗氏线圈， 具体由若干个相同的组成单元串联而成， 每一个组成单 元包括了第一线圈的一圈线匝和第二线圈的一圈线匝， 这两圈线匝紧密相邻。 其中，两圈线匝紧密相邻可以理解为： 两圈线匝之间的最小间距等于 PCB板的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关， 如 PCB板的最小安全 间距为 6mil (密耳） ， gP0. 1524mn (毫米） 。
每一个组成单元的第一线圈的一圈线匝包括： 进线、 绕线、 出线， 进线和出线分别用于连接上一个组成单元和 下一个组成单元属于第一线圈的线匝，绕线由位于顶层和底层的布线和顶层底层之间的过孔环绕而成。单块双面 PCB 闭合罗氏线圈的每一个组成单元的第二线圈的一圈线匝包括： 进线、 绕线、 出线， 进线和出线分别用于连接上一个 组成单元和下一个组成单元属于第二线圈的线匝， 绕线由位于顶层和底层的布线和顶层底层之间的过孔环绕而成。
该能对抗外界磁场干扰的单块双面 PCB闭合罗氏线圈设有两个信号输出端：第一信号输出端和第二信号输出端， 和第一信号输出端相连的是第一个组成单元的第一线圈的线匝的进线， 和第二信号输出端相连的是第一个组成单元 的第二线圈的线匝的进线。 和第一个组成单元相邻的是第二个组成单元， 以此类推， 直到最后一个组成单元。 最后 一个组成单元的第一线圈的线匝的出线，和最后一个组成单元的第二线圈的线匝的出线直接相连，实现单块双面 PCB 闭合罗氏线圈的第一线圈和第二线圈之间的串联。
该能对抗外界磁场干扰的单块双面 PCB闭合罗氏线圈中， 每一个组成单元的第一线圈的线匝的绕线围成的截面 垂直于双面 PCB表面，绕线围成的截面位于 PCB的横截面上，绕线的布线路径在垂直于双面 PCB表面的方向上重合。 每一个组成单元的第二线圈的线匝的绕线围成的截面垂直于双面 PCB表面， 绕线围成的截面位于双面 PCB的横截面 上， 绕线的布线路径在垂直于双面 PCB表面的方向上重合。
该能对抗外界磁场干扰的单块双面 PCB闭合罗氏线圈中， 所有组成单元的中心均匀分布在待测电流产生的磁场 的一条磁力线上。 所有组成单元的第一线圈的线匝的绕线截面方向近似为通过该绕线截面中心的磁力线法线方向， 第一线圈的线匝的绕线截面和通过该绕线截面中心的磁力线切线方向 （即磁场强度方向） 近似垂直。 所有组成单元 的第二线圈的线匝的绕线截面方向近似为通过该绕线截面中心的磁力线法线方向， 第二线圈的线匝的绕线截面和通 过该绕线截面中心的磁力线切线方向 （即磁场强度方向） 近似垂直。
图 5所示的是本发明具体实施例能对抗外界磁场干扰的单块双面 PCB闭合罗氏线圈 500， 适用于测量垂直穿过
PCB闭合罗氏线圈 500中心的载流导体 105上流过的电流， 该电流产生的交变磁场磁力线为一族以 PCB闭合罗氏线圈 500中心为圆心的圆。 图 5A所示的是单块双面 PCB闭合罗氏线圈顶层和底层的叠层， 图 5B所示的是单块双面 PCB闭 合罗氏线圈的顶层， 图 5C所示的是单块双面 PCB闭合罗氏线圈的底层。
单块双面 PCB闭合罗氏线圈 500包括了两组绕线方向相反的线圈 501和 502， 线圈 501和线圈 502串联起来， 组成 PCB闭合罗氏线圈 500。 单块双面 PCB闭合罗氏线圈 500由许多个相同的组成单元串联而成， 如图 5A所示的一个组成 单元 503。 如图 5A、 图 5B、 图 5C所示， 组成单元 503的中心， 和其他组成单元的中心， 位于载流导体 105上流过的电 流产生的一条圆形磁力线上， 各个组成单元均匀分布在这条圆形磁力线上。
每个组成单元内包括两组绕线方向相反的线圈的各一圈线匝， 组成单元 503包括了线圈 501的一圈线匝 504， 线 圈 502的一圈线匝 505， 这两圈线匝紧密相邻。 图 5B所示组成单元 503的线匝 504的顶层部分 506， 线匝 505的顶层部 分 507。 线匝 504的顶层部分 506和线匝 506的顶层部分 507紧密相邻。 图 5C所示组成单元 503的线匝 504的底层部分 508, 线匝 505的底层部分 509。 线匝 504的底层部分 508和线匝 506的底层部分 509紧密相邻。
图 6所示单块双面 PCB闭合罗氏线圈 500的局部细节。 图 6A所示的是单块双面 PCB闭合罗氏线圈 500局部的顶层 和底层的叠层， 图 6B所示的是单块双面 PCB闭合罗氏线圈 500局部的顶层， 图 6C所示的是单块双面 PCB闭合罗氏线 圈 500局部的底层。
图 6A所示闭合 PCB闭合罗氏线圈 500的一个组成单元 600的顶层和底层的叠层， 包括线圈 620的一圈线匝 618的 叠层部分，和另一组绕线方向相反的线圈 621的一圈线匝 619的叠层部分。线圈 620的一圈线匝 618的叠层部分，包括： 进线 601、 布线 607、 过孔 609、 过孔 604、 出线 606。 线圈 621的一圈线匝 619的叠层部分， 包括： 进线 602、 布线 608、 过孔 610、 过孔 603、 出线 605。
图 6B所示闭合 PCB闭合罗氏线圈 500的一个组成单元 600的顶层， 包括线圈 620的一圈线匝 618的顶层部分， 和 另一组绕线方向相反的线圈 621的一圈线匝 619的顶层部分。 线圈 620的一圈线匝 618的顶层部分， 包括了： 过孔 609， 布线 616， 过孔 604。 线圈 621的一圈线匝 619的顶层部分， 包括了： 进线 602， 布线 617， 过孔 610， 过孔 603， 出线 605。
图 6C所示闭合 PCB闭合罗氏线圈 500的一个组成单元 600的底层， 包括线圈 620的一圈线匝 618的底层部分， 和 另一组绕线方向相反的线圈 621的一圈线匝 619的底层部分。 线圈 620的一圈线匝 618的底层部分， 包括了： 进线 601， 布线 614， 过孔 609， 过孔 604， 出线 606。 线圈 621的一圈线匝 619的底层部分， 包括了： 过孔 610， 布线 615， 过孔 603。
图 6A、 图 6B、 图 6C所示， 闭合 PCB闭合罗氏线圈 500的线圈 620的一圈线匝 618的矩形绕线部分， 由布线 616、 过孔 609、 布线 614、 过孔 604组成， 矩形绕线部分的顶层布线 616和底层布线 614， 在垂直于 PCB表面的方向上是重 叠的。 另一组绕线方向相反的线圈 621的一圈线匝 619的矩形绕线部分， 由布线 615、 过孔 610、 布线 617、 过孔 603 组成， 矩形绕线部分的底层布线 615和顶层布线 617在垂直于 PCB表面的方向上是重叠的。
图 6A、 图 6B、 图 6C所示， 闭合 PCB闭合罗氏线圈 500的一个组成单元 600的一圈线匝 618的矩形绕线截面方向， 及闭合 PCB闭合罗氏线圈 500的一个组成单元 600的一圈线匝 619的矩形绕线截面方向， 沿通过闭合 PCB闭合罗氏线 圈 500的中心和该绕线截面中心的射线方向， 即闭合 PCB闭合罗氏线圈 500的各个组成单元中心所在磁力线， 在该绕 线截面中心位置的法线方向。
图 6A、 图 6B、 图 6C所示， 闭合 PCB闭合罗氏线圈 500的一个组成单元 600的一圈线匝 618的矩形绕线截面， 及闭 合 PCB闭合罗氏线圈 500的一个组成单元 600的一圈线匝 619的矩形绕线截面，和通过闭合 PCB闭合罗氏线圈 500的中 心和该绕线截面中心的射线方向垂直， 即闭合 PCB闭合罗氏线圈 500的各个组成单元中心所在磁力线， 在该绕线截面 中心位置的切线方向。
图 6A、 图 6B、 图 6C所示， 闭合 PCB闭合罗氏线圈 500的第一个组成单元上设置了外部接入点 61 1， 连接第一个 组成单元的线圈 620的第一匝线圈的进线， 闭合 PCB闭合罗氏线圈 500的第一个组成单元上设置了外部接入点 612， 连接第一个组成单元的另一组绕线方向相反的线圈 621的第一匝线圈的进线。 外部接入点 61 1、 外部接入点 612作为 闭合 PCB闭合罗氏线圈 500的输出信号的两端。
图 6A、 图 6B、 图 6C所示， 闭合 PCB闭合罗氏线圈 500的最后一个组成单元 613上， 线圈 620的过孔 622， 和另一 组绕线方向相反的线圈 621的过孔 623之间的两条出线， 直接通过布线 624相连， 实现闭合 PCB闭合罗氏线圈 500的两 组绕线方向相反的线圈 620和 621之间的串联。
(二） 多块 PCB闭合罗氏线圈
该能对抗外界磁场干扰的多块 PCB闭合罗氏线圈中， 包括两组绕线方向相反的串联线圈， 分别为第一线圈和第 二线圈。
该能对抗外界磁场干扰的多块 PCB闭合罗氏线圈，具体由 N块 PCB层叠而成。多块 PCB闭合罗氏线圈设有两个信 号输出端， 分别为第 1信号输出端和第 2信号输出端。 第 1信号输出端和第 2信号输出端所在的 PCB为第 1 PCB, 与第 1 PCB相邻的 PCB为第 2 PCB， 如果 N 5=3， 则以此类推， 依次为第 3 PCB， 直到第 N PCB。
第 1 PCB到第 N-1 PCB上设置了 4个外部接入点： 第 1外部接入点、 第 2外部接入点、 第 3外部接入点、 第 4外部接 入点， 第 1外部接入点、 第 3外部接入点分别为第 1 PCB到第 N-1 PCB上第一线圈的起点和终点， 第 2外部接入点、 第 4外部接入点分别为第 1 PCB到第 N-1 PCB上第二线圈的起点和终点。 第 N PCB上设置了两个外部接入点： 第 1外部 接入点、 第 2外部接入点， 第 1外部接入点为第 N PCB上第一线圈的起点， 第 2外部接入点为第 N PCB上第二线圈的起 第 1 PCB上的第 1外部接入点为第 1信号输出端，第 1 PCB上的第 2外部接入点为第 2信号输出端。层叠的相邻 PCB 中上一块 PCB的第 3外部接入点与下一块 PCB上的第 1外部接入点相连，实现上一块 PCB上的第一线圈部分和下一块 PCB上的第一线圈部分的串联，形成完整的第一线圈。层叠的相邻 PCB中上一块 PCB的第 4外部接入点与下一块 PCB 上的第 2外部接入点相连， 实现上一块 PCB上的第二线圈部分和下一块 PCB上的第二线圈部分的串联， 形成完整的 第二线圈。 第一线圈和第二线圈在第 N PCB上直接串联起来， 形成能对抗外界磁场干扰的多块 PCB闭合罗氏线圈。
第 1 PCB到第 N PCB, 每块 PCB都是由若干个相同的组成单元串联而成， 每一个组成单元包括了第一线圈和第 二线圈的各一圈线匝， 这两圈线匝紧密相邻。 两圈线匝紧密相邻可以理解为： 两圈线匝之间的最小间距等于 PCB板的 最小安全间距， PCB板的最小安全间距与 PCB板工艺相关， 如 PCB板的最小安全间距为 6mi l (密耳） ， 即 0. 1524mm (毫 米） 。 该多块 PCB闭合罗氏线圈的每块 PCB的每一个组成单元的第一线圈的一圈线匝包括： 进线、 绕线、 出线， 进 线和出线分别用于连接上一个组成单元和下一个组成单元属于第一线圈的线匝， 绕线由位于不同层的布线和不同层 之间的过孔环绕而成。 多块 PCB闭合罗氏线圈的每块 PCB的每一个组成单元的第二线圈的一圈线匝包括： 进线、 绕 线、 出线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线匝， 绕线由位于不同层的 布线和不同层之间的过孔环绕而成。 具体的， 顶层布线和底层布线路径重合， 由顶层布线， 底层布线、 两个过孔环 绕而成的绕线所围成的截面类似一个矩形。
第 1 PCB到第 N PCB的第 1个组成单元的第一线圈的一圈线匝的进线与第 1 PCB到第 N PCB的第 1外部接入点相 连， 第 1 PCB到第 N PCB的第 1个组成单元的第二线圈的一圈线匝的进线与第 1 PCB到第 N PCB的第 2外部接入点相 连。第 1 PCB到第 N-1 PCB的最后 1个组成单元的第一线圈的一圈线匝的出线与第 1 PCB到第 N-1 PCB的第 3外部接入 点相连，第 1 PCB到第 N-1 PCB的最后 1个组成单元的第二线圈的一圈线匝的出线与第 1 PCB到第 N-1 PCB的第 4外部 接入点相连。 第 N PCB的最后 1个组成单元的第一线圈的一圈线匝的出线， 与第 N PCB的最后 1个组成单元的第二线 圈的一圈线匝的出线， 直接相连， 实现第一线圈和第二线圈在第 N PCB上的串联。 该能对抗外界磁场干扰的多块 PCB闭合罗氏线圈中， 每一个组成单元两圈线匝的绕线围成的截面垂直于 PCB表 面， 绕线围成的截面位于 PCB的横截面上， 绕线的布线路径在垂直于 PCB表面的方向上重合。
该能对抗外界磁场干扰的多块 PCB闭合罗氏线圈中， 每块 PCB上各个组成单元的中心均匀分布在待测电流产生 的磁场的一条磁力线上， 所有组成单元两圈线匝的绕线截面方向沿通过该绕线截面中心的磁力线法线方向， 所有组 成单元两圈线匝的绕线截面和通过该绕线截面中心的磁力线切线方向 （即磁场强度方向）近似垂直。
多块 PCB闭合罗氏线圈中， PCB板为双面 PCB， 第一线圈和第二线圈位于 PCB板的上下两面， 因此， 多块 PCB 闭合罗氏线圈可以称为多块双面 PCB闭合罗氏线圈。
在该能对抗外界磁场干扰的多块双面 PCB闭合罗氏线圈中， 包括两组串联的绕线方向相反的线圈， 分别为第一 线圈和第二线圈。
能对抗外界磁场干扰的多块双面 PCB闭合罗氏线圈，具体由 N块双面 PCB层叠而成。多块双面 PCB闭合罗氏线圈 设有两个信号输出端， 分别为第 1信号输出端和第 2信号输出端。 第 1信号输出端和第 2信号输出端所在的 PCB为第 1 PCB, 与第 1 PCB相邻的 PCB为第 2 PCB， 如果 N 5=3， 则以此类推， 依次为第 3 PCB， 直到第 N PCB。
第 1 PCB到第 N-1 PCB上设置了 4个外部接入点： 第 1外部接入点、 第 2外部接入点、第 3外部接入点、第 4外部接 入点， 第 1外部接入点、 第 3外部接入点分别为第 1 PCB到第 N-1 PCB上第一线圈的起点和终点， 第 2外部接入点、 第 4外部接入点分别为第 1 PCB到第 N-1 PCB上第二线圈的起点和终点。 第 N PCB上设置了两个外部接入点： 第 1外部 接入点、第 2外部接入点，第 1外部接入点为第 N PCB上第一线圈的起点，第 2外部接入点为第 N PCB上第二线圈的起 第 1 PCB上的第 1外部接入点为第 1信号输出端，第 1 PCB上的第 2外部接入点为第 2信号输出端。层叠的相邻 PCB 中上一块 PCB的第 3外部接入点与下一块 PCB上的第 1外部接入点相连，实现上一块 PCB上的第一线圈部分和下一块 PCB上的第一线圈部分的串联，形成完整的第一线圈。层叠的相邻 PCB中上一块 PCB的第 4外部接入点与下一块 PCB 上的第 2外部接入点相连， 实现上一块 PCB上的第二线圈部分和下一块 PCB上的第二线圈部分的串联， 形成完整的 第二线圈。 第一线圈和第二线圈在第 N PCB上直接串联起来， 形成能对抗外界磁场干扰的多块双面 PCB闭合罗氏线 圈。
第 1 PCB到第 N PCB , 每块双面 PCB都是由若干个相同的组成单元串联而成， 每一个组成单元包括了第一线圈 和第二线圈的各一圈线匝， 这两圈线匝紧密相邻。 其中，两圈线匝紧密相邻可以理解为： 两圈线匝之间的最小间距等 于 PCB板的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关， 如 PCB板的最小安全间距为 6mi l (密耳） ， 即 0. 1524mm (毫米） 。 多块双面 PCB闭合罗氏线圈的每块双面 PCB的每一个组成单元的第一线圈的一圈线匝包括： 进 线、 绕线、 出线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于第一线圈的线匝， 绕线由位于顶 层和底层的布线和顶层、 底层之间的过孔环绕而成。 多块双面 PCB闭合罗氏线圈的每块双面 PCB的每一个组成单元 的第二线圈的一圈线匝包括： 进线、 绕线、 出线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于 第二线圈的线匝， 绕线由位于顶层和底层的布线和顶层、 底层之间的过孔环绕而成。 具体的， 顶层布线和底层布线 路径重合， 由顶层布线， 底层布线、 两个过孔环绕而成的绕线所围成的截面类似一个矩形。
第 1 PCB到第 N PCB的第 1个组成单元的第一线圈的一圈线匝的进线与第 1 PCB到第 N PCB的第 1外部接入点相 连， 第 1 PCB到第 N PCB的第 1个组成单元的第二线圈的一圈线匝的进线与第 1 PCB到第 N PCB的第 2外部接入点相 连。第 1 PCB到第 N-1 PCB的最后 1个组成单元的第一线圈的一圈线匝的出线与第 1 PCB到第 N-1 PCB的第 3外部接入 点相连，第 1 PCB到第 N-1 PCB的最后 1个组成单元的第二线圈的一圈线匝的出线与第 1 PCB到第 N-1 PCB的第 4外部 接入点相连。 第 N PCB的最后 1个组成单元的第一线圈的一圈线匝的出线， 与第 N PCB的最后 1个组成单元的第二线 圈的一圈线匝的出线， 直接相连， 实现第一线圈和第二线圈在第 N PCB上的串联。
能对抗外界磁场干扰的多块双面 PCB闭合罗氏线圈中， 每一个组成单元两圈线匝的绕线围成的截面垂直于双面 PCB表面， 绕线围成的截面位于双面 PCB的横截面上， 绕线的布线路径在垂直于双面 PCB表面的方向上重合。
能对抗外界磁场干扰的多块双面 PCB闭合罗氏线圈中， 每块双面 PCB上各个组成单元的中心均匀分布在待测电 流产生的磁场的一条磁力线上， 所有组成单元两圈线匝的绕线截面方向沿通过该绕线截面中心的磁力线法线方向， 所有组成单元两圈线匝的绕线截面和通过该绕线截面中心的磁力线切线方向 （即磁场强度方向） 近似垂直。
图 7所示的是本发明具体实施例 N块双面 PCB闭合罗氏线圈中的第 1块到第 N-1块双面 PCB， 图 7A所示的是 N块双 面 PCB闭合罗氏线圈中的第 1块到第 N-1块双面 PCB的顶层和底层的叠层， 图 7B所示的是 N块双面 PCB闭合罗氏线圈 中的第 1块到第 N-1块双面 PCB的顶层， 图 7C所示的是 N块双面 PCB闭合罗氏线圈中的第 1块到第 N-1块双面 PCB的底 层。
N块双面 PCB闭合罗氏线圈中的第 1块到第 N-1块双面 PCB上的线圈 500， 包括了两组绕线方向相反的线圈 501和 502, 分别是组成 N块双面 PCB闭合罗氏线圈的第一线圈和第二线圈的一部分。
线圈 500设置了 4个外部接入点： 503、 504、 505、 506。 外部接入点 503作为线圈 501的起点， 外部接入点 505 作为线圈 501的终点， 外部接入点 504作为线圈 502的起点， 外部接入点 506作为线圈 502的终点。
外部接入点 503和外部接入点 504同时也作为 N块双面 PCB闭合罗氏线圈的信号输出端。外部接入点 505用于连接 下一块双面 PCB上的第一线圈部分， 外部接入点 506用于连接下一块双面 PCB上的第二线圈部分。
线圈 500由许多个相同的组成单元串联而成， 如图 7A所示的一个组成单元 507。 如图 7A、 图 7B、 图 7C所示， 组 成单元 507的中心， 和其他组成单元的中心， 位于载流导体 105上流过的电流产生的一条圆形磁力线上， 各个组成单 元均匀分布在这条圆形磁力线上。
每个组成单元内包括两组绕线方向相反的线圈的各一圈线匝， 组成单元 507包括了线圈 501的一圈线匝 508， 线 圈 502的一圈线匝 509， 这两圈线匝紧密相邻。 图 7B所示组成单元 507的线匝 508的顶层部分 510， 线匝 509的顶层部 分 51 1。 线匝 508的顶层部分 510和线匝 509的顶层部分 51 1紧密相邻。 图 7C所示组成单元 507的线匝 508的底层部分 512, 线匝 509的底层部分 513。 线匝 508的底层部分 512和线匝 509的底层部分 513紧密相邻。
图 8所示的是依据本发明具体实施例， N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB， 图 8A所示的是 N块双面
PCB闭合罗氏线圈中的第 N块双面 PCB的顶层和底层的叠层， 图 8B所示的是 N块双面 PCB闭合罗氏线圈中的第 N块双 面 PCB的顶层， 图 8C所示的是 N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB的底层。
N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB上的线圈 600， 包括了两组绕线方向相反的线圈 601和 602， 分别 是组成 N块双面 PCB闭合罗氏线圈的第一线圈和第二线圈的一部分。
线圈 600设置了 2个外部接入点： 603、 604。 外部接入点 603作为线圈 601的起点， 外部接入点 604作为线圈 602 的起点。 外部接入点 603用于连接上一块双面 PCB上的第一线圈部分， 外部接入点 604用于连接上一块双面 PCB上的 第二线圈部分。
线圈 600由许多个相同的组成单元串联而成， 如图 8A所示的一个组成单元 605。 如图 8A、 图 8B、 图 8C所示， 组 成单元 605的中心， 和其他组成单元的中心， 位于载流导体 105上流过的电流产生的一条圆形磁力线上， 各个组成单 元均匀分布在这条圆形磁力线上。
每个组成单元内包括两组绕线方向相反的线圈的各一圈线匝， 组成单元 605包括了线圈 601的一圈线匝 606， 线 圈 602的一圈线匝 607， 这两圈线匝紧密相邻。 图 8B所示组成单元 605的线匝 606的顶层部分 608， 线匝 607的顶层部 分 609。 线匝 606的顶层部分 608和线匝 607的顶层部分 609紧密相邻。 图 8C所示组成单元 605的线匝 606的底层部分 610， 线匝 607的底层部分 61 1。 线匝 606的底层部分 610和线匝 607的底层部分 61 1紧密相邻。
图 7所示的双面 PCB线圈 500和图 8所示的双面 PCB线圈 600串联，就可以组成由两块双面 PCB层叠而成的闭合罗 氏线圈。 图 7所示的双面 PCB线圈 500的外部接入点 505连接双面 PCB线圈 600的第一线圈部分的外部接入点 603， 外 部接入点 506连接双面 PCB线圈 600的第二线圈部分的外部接入点 604， 外部接入点 503和外部接入点 504作为闭合罗 氏线圈的信号输出端。
图 9所示 N块双面 PCB闭合罗氏线圈中的第 N块双面 PCB上的线圈 600的局部细节。 图 9A所示的是单块双面 PCB 闭合罗氏线圈 600局部的顶层和底层的叠层， 图 9B所示的是单块双面 PCB闭合罗氏线圈 600局部的顶层， 图 9C所示的 是单块双面 PCB闭合罗氏线圈 600局部的底层。 图 9A所示 N块双面 PCB闭合罗氏线圈的一个组成单元 700的顶层和底层的叠层， 包括第一线圈部分线圈 720的一 圈线匝 718的叠层部分， 和另一组绕线方向相反的第二线圈部分线圈 721的一圈线匝 719的叠层部分。 线圈 720的一圈 线匝 718的叠层部分， 包括： 进线 701、 布线 707、 过孔 709、 过孔 704、 出线 706。 线圈 721的一圈线匝 719的叠层部 分， 包括： 进线 702、 布线 708、 过孔 710、 过孔 703、 出线 705。
图 9B所示闭合 PCB闭合罗氏线圈 600的一个组成单元 700的顶层， 包括线圈 720的一圈线匝 718的顶层部分， 和 另一组绕线方向相反的线圈 721的一圈线匝 719的顶层部分。 线圈 720的一圈线匝 718的顶层部分， 包括了： 过孔 709， 布线 714， 过孔 704。 线圈 721的一圈线匝 719的顶层部分， 包括了： 进线 702， 布线 715， 过孔 710， 过孔 703， 出线 705。
图 9C所示闭合 PCB闭合罗氏线圈 600的一个组成单元 700的底层， 包括线圈 720的一圈线匝 718的底层部分， 和 另一组绕线方向相反的线圈 721的一圈线匝 719的底层部分。 线圈 720的一圈线匝 718的底层部分， 包括了： 进线 701， 布线 716， 过孔 709， 过孔 704， 出线 706。 线圈 721的一圈线匝 719的底层部分， 包括了： 过孔 710， 布线 717， 过孔 703。
图 9A、 图 9B、 图 9C所示， 闭合 PCB闭合罗氏线圈 600的线圈 720的一圈线匝 718的矩形绕线部分， 由布线 714、 过孔 709、 布线 716、 过孔 704组成， 矩形绕线部分的顶层布线 714和底层布线 716， 在垂直于 PCB表面的方向上是重 叠的。 另一组绕线方向相反的线圈 721的一圈线匝 719的矩形绕线部分， 由布线 717、 过孔 710、 布线 715、 过孔 703 组成， 矩形绕线部分的底层布线 717和顶层布线 715在垂直于 PCB表面的方向上是重叠的。
图 9A、 图 9B、 图 9C所示， 闭合 PCB闭合罗氏线圈 600的一个组成单元 700的一圈线匝 718的矩形绕线截面方向， 及闭合 PCB闭合罗氏线圈 600的一个组成单元 700的一圈线匝 719的矩形绕线截面方向， 沿通过闭合 PCB闭合罗氏线 圈 600的中心和该绕线截面中心的射线方向， 即闭合 PCB闭合罗氏线圈 600的各个组成单元中心所在磁力线， 在该绕 线截面中心位置的法线方向。
图 9A、 图 9B、 图 9C所示， 闭合 PCB闭合罗氏线圈 600的一个组成单元 700的一圈线匝 718的矩形绕线截面， 及闭 合 PCB闭合罗氏线圈 600的一个组成单元 700的一圈线匝 719的矩形绕线截面，和通过闭合 PCB闭合罗氏线圈 600的中 心和该绕线截面中心的射线方向垂直， 即闭合 PCB闭合罗氏线圈 600的各个组成单元中心所在磁力线， 在该绕线截面 中心位置的切线方向。
图 9A、 图 9B、 图 9C所示， 闭合 PCB闭合罗氏线圈 600的第一个组成单元上设置了外部接入点 71 1， 连接第一个 组成单元的线圈 720的第一匝线圈的进线， 闭合 PCB闭合罗氏线圈 600的第一个组成单元上设置了外部接入点 712， 连接第一个组成单元的另一组绕线方向相反的线圈 721的第一匝线圈的进线。 外部接入点 71 1用于连接上一块双面 PCB上的第一线圈部分， 外部接入点 712用于连接上一块双面 PCB上的第二线圈部分。
图 9A、 图 9B、 图 9C所示， 闭合 PCB闭合罗氏线圈 600的最后一个组成单元 713上， 线圈 720的过孔 722， 和另一 组绕线方向相反的线圈 721的过孔 723之间的两条出线， 直接通过布线 724相连， 实现闭合 PCB闭合罗氏线圈 600的两 组绕线方向相反的线圈 720和 721之间的串联。
(三）两块 PCB开口罗氏线圈
在该能对抗外界磁场干扰的两块 PCB开口罗氏线圈中， 包括两组串联的绕线方向相反的线圈， 分别为第一线圈 和第二线圈， 每块 PCB上都有第一线圈和第二线圈的一部分。
该能对抗外界磁场干扰的两块 PCB开口罗氏线圈， 具体包括两块 PCB， 每块 PCB上设置了两个外部接入点： 第 1 外部接入点、第 2外部接入点。 每块 PCB上的第 1外部接入点为每块 PCB上第一线圈的起点， 每块 PCB上的第 2外部接 入点为每块 PCB上第二线圈的终点。
两块 PCB可以有两种连接方式： 两块 PCB的第 1外部接入点直接相连， 两块 PCB的第 2外部接入点作为两块 PCB 开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端； 两块 PCB的第 2外部接入点直接相连， 两 块 PCB的第 1外部接入点作为两块 PCB开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端。第 1信号输出端所在的 PCB为第 1 PCB， 第 2信号输出端所在的 PCB为第 2 PCB。
第 1 PCB和第 2 PCB,每块 PCB都是由若干个相同的组成单元串联而成，每一个组成单元包括了第一线圈和第二 线圈的各一圈线匝， 这两圈线匝紧密相邻。 其中，两圈线匝紧密相邻可以理解为： 两圈线匝之间的最小间距等于 PCB 板的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关， 如 PCB板的最小安全间距为 6mi l (密耳） ， SPO. 1524mm (毫米） 。 两块 PCB开口罗氏线圈的每块 PCB的每一个组成单元的第一线圈的一圈线匝包括： 进线、 绕线、 出线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于第一线圈的线匝， 绕线由位于不同层的布线和不同 层之间的过孔环绕而成。 两块 PCB开口罗氏线圈的每块 PCB的每一个组成单元的第二线圈的一圈线匝包括： 进线、 绕线、 出线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线匝， 绕线由位于不同层 的布线和不同层之间的过孔环绕而成。 具体的， 顶层布线和底层布线路径重合， 由顶层布线， 底层布线、 两个过孔 环绕而成的绕线所围成的截面类似一个矩形。
第 1 PCB第 1个组成单元的第一线圈的一圈线匝的进线与第 1 PCB的第 1外部接入点相连， 第 1 PCB第 1个组成单 元的第二线圈的一圈线匝的进线与第 1 PCB的第 2外部接入点相连。第 2 PCB第 1个组成单元的第一线圈的一圈线匝的 进线与第 2 PCB的第 1外部接入点相连， 第 2 PCB第 1个组成单元的第二线圈的一圈线匝的进线与第 2 PCB的第 2外部 接入点相连。
第 1 PCB最后 1个组成单元的第一线圈的一圈线匝的出线，与第 1 PCB最后 1个组成单元的第二线圈的一圈线匝的 出线， 直接相连， 实现第一线圈和第二线圈在第 1 PCB上的串联。 第 2 PCB的最后 1个组成单元的第一线圈的一圈线 匝的出线， 与第 2 PCB的最后 1个组成单元的第二线圈的一圈线匝的出线， 直接相连， 实现第一线圈和第二线圈在第 2 PCB上的串联。
能对抗外界磁场干扰的两块 PCB开口罗氏线圈， 每一个组成单元两圈线匝的绕线围成的截面垂直于 PCB表面， 绕线围成的截面位于 PCB的横截面上， 绕线的布线路径在垂直于 PCB表面的方向上重合。
能对抗外界磁场干扰的两块 PCB开口罗氏线圈， 每块 PCB上各个组成单元的中心均匀分布在待测电流产生的磁 场的一条磁力线上， 所有组成单元两圈线匝的绕线截面方向近似沿通过该绕线截面中心的磁力线法线方向， 所有组 成单元两圈线匝的绕线截面和通过该绕线截面中心的磁力线切线方向 （即磁场强度方向）近似垂直。
两块 PCB开口罗氏线圈中， PCB板为双面 PCB， 第一线圈和第二线圈位于 PCB板的上下两面， 因此， 两块 PCB 开口罗氏线圈可以称为两块双面 PCB开口罗氏线圈。
在该能对抗外界磁场干扰的两块双面 PCB开口罗氏线圈中， 包括两组串联的绕线方向相反的线圈， 分别为第一 线圈和第二线圈， 每块双面 PCB上都有第一线圈和第二线圈的一部分。
该能对抗外界磁场干扰的两块双面 PCB开口罗氏线圈， 具体由两块双面 PCB组成， 每块双面 PCB上设置了两个 外部接入点： 第 1外部接入点、 第 2外部接入点。 每块双面 PCB上的第 1外部接入点每块双面 PCB上第一线圈的起点， 每块双面 PCB上的第 2外部接入点为每块 PCB上第二线圈的终点。
两块 PCB可以有两种连接方式： 两块 PCB的第 1外部接入点直接相连， 两块 PCB的第 2外部接入点作为两块 PCB 开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端； 两块 PCB的第 2外部接入点直接相连， 两 块 PCB的第 1外部接入点作为两块 PCB开口罗氏线圈的两个信号输出端，分别为第 1信号输出端和第 2信号输出端。第 1信号输出端所在的 PCB为第 1 PCB， 第 2信号输出端所在的 PCB为第 2 PCB。
第 1 PCB和第 2 PCB,每块双面 PCB都是由若干个相同的组成单元串联而成，每一个组成单元包括了第一线圈和 第二线圈的各一圈线匝， 这两圈线匝紧密相邻。 其中，两圈线匝紧密相邻可以理解为： 两圈线匝之间的最小间距等于 PCB板的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关，如 PCB板的最小安全间距为 6mi l (密耳），即 0. 1524mm (毫米） 。
两块双面 PCB开口罗氏线圈的每块双面 PCB的每一个组成单元的第一线圈的一圈线匝包括： 进线、 绕线、 出线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于第一线圈的线匝， 绕线由位于顶层和底层的布线和 顶层、 底层之间的过孔环绕而成。 两块双面 PCB开口罗氏线圈的每块双面 PCB的每一个组成单元的第二线圈的一圈 线匝包括： 进线、 绕线、 出线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线匝， 绕线由位于顶层和底层的布线和顶层、 底层之间的过孔环绕而成。 具体的， 顶层布线和底层布线路径重合， 由顶层 布线， 底层布线、 两个过孔环绕而成的绕线所围成的截面类似一个矩形。
第 1 PCB第 1个组成单元的第一线圈的一圈线匝的进线与第 1 PCB的第 1外部接入点相连， 第 1 PCB第 1个组成单 元的第二线圈的一圈线匝的进线与第 1 PCB的第 2外部接入点相连。第 2 PCB第 1个组成单元的第一线圈的一圈线匝的 进线与第 2 PCB的第 1外部接入点相连， 第 2 PCB第 1个组成单元的第二线圈的一圈线匝的进线与第 2 PCB的第 2外部 接入点相连。
第 1 PCB最后 1个组成单元的第一线圈的一圈线匝的出线，与第 1 PCB最后 1个组成单元的第二线圈的一圈线匝的 出线， 直接相连， 实现第一线圈和第二线圈在第 1 PCB上的串联。 第 2 PCB的最后 1个组成单元的第一线圈的一圈线 匝的出线， 与第 2 PCB的最后 1个组成单元的第二线圈的一圈线匝的出线， 直接相连， 实现第一线圈和第二线圈在第 2 PCB上的串联。
能对抗外界磁场干扰的两块双面 PCB开口罗氏线圈， 每一个组成单元两圈线匝的绕线围成的截面垂直于双面 PCB表面， 绕线围成的截面位于双面 PCB的横截面上， 绕线的布线路径在垂直于双面 PCB表面的方向上重合。
能对抗外界磁场干扰的两块双面 PCB开口罗氏线圈， 每块双面 PCB上各个组成单元的中心均匀分布在待测电流 产生的磁场的一条磁力线上， 所有组成单元两圈线匝的绕线截面方向近似沿通过该绕线截面中心的磁力线法线方向， 所有组成单元两圈线匝的绕线截面和通过该绕线截面中心的磁力线切线方向 （即磁场强度方向） 近似垂直。
图 10所示的是本发明具体实施例能对抗外界磁场干扰的两块双面 PCB开口罗氏线圈 500， 适用于测量垂直穿过 PCB开口罗氏线圈 500中心的载流导体 1 13上流过的电流， 该电流产生的交变磁场磁力线为一族以 PCB开口罗氏线圈 500中心为圆心的圆。 图 10A所示的是两块双面 PCB开口罗氏线圈顶层和底层的叠层， 图 10B所示的是两块双面 PCB 开口罗氏线圈的顶层， 图 10C所示的是两块双面 PCB开口罗氏线圈的底层。
两块双面 PCB开口罗氏线圈 500包括了两半双面 PCB罗氏线圈， 分别是线圈 501和线圈 502。 线圈 501上包括 了两组绕线方向相反的线圈： 线圈 503和线圈 504， 线圈 503和线圈 504组成一半双面 PCB罗氏线圈 501。 线圈 502上 包括了两组绕线方向相反的线圈： 线圈 505和线圈 506， 线圈 505和线圈 506组成一半双面 PCB罗氏线圈 502。
线圈 500设置了 4个外部接入点： 507、 508、 509、 510。 外部接入点 508作为线圈 503的起点， 外部接入点 507 作为线圈 504的终点。 外部接入点 510作为线圈 505的起点， 外部接入点 509作为线圈 506的终点。
线圈 501和线圈 502可以采用如下两种方式组成两块双面 PCB开口罗氏线圈 500:
外部接入点 507和外部接入点 509作为两块双面 PCB开口罗氏线圈的信号输出端， 外部接入点 508和外部接入点 510直接相连， 用于连接线圈 501和线圈 502;
外部接入点 508和外部接入点 510作为两块双面 PCB开口罗氏线圈的信号输出端， 外部接入点 507和外部接入点 509直接相连， 用于连接线圈 501和线圈 502。
双面 PCB开口罗氏线圈 500的一半线圈 501由许多个相同的组成单元串联而成， 如图 10A所示的一个组成单元 51 1。 如图 10A、 图 10B、 图 10C所示， 组成单元 51 1的中心， 和其他组成单元的中心， 位于载流导体 1 13上流过的电 流产生的一条圆形磁力线上， 各个组成单元均匀分布在这条圆形磁力线上。
双面 PCB开口罗氏线圈 500的一半线圈 501的每个组成单元，包括两组绕线方向相反的线圈：线圈 503和线圈 504 的各一圈线匝， 组成单元 51 1包括了线圈 503的一圈线匝 513， 线圈 504的一圈线匝 514， 这两圈线匝紧密相邻。 图 10B 所示组成单元 51 1的线匝 513的顶层部分 517， 线匝 514的顶层部分 518。 线匝 513的顶层部分 517和线匝 514的顶层部 分 518紧密相邻。 图 10C所示组成单元 51 1的线匝 513的底层部分 521， 线匝 514的底层部分 522。 线匝 513的底层部分 521和线匝 514的底层部分 522紧密相邻。
双面 PCB开口罗氏线圈 500的一半线圈 502由许多个相同的组成单元串联而成， 如图 10A所示的一个组成单元 512。 如图 10A、 图 10B、 图 10C所示， 组成单元 512的中心， 和其他组成单元的中心， 位于载流导体 1 13上流过的电 流产生的一条圆形磁力线上， 各个组成单元均匀分布在这条圆形磁力线上。 双面 PCB开口罗氏线圈 500的一半线圈 502的每个组成单元，包括两组绕线方向相反的线圈：线圈 505和线圈 506 的各一圈线匝， 组成单元 512包括了线圈 505的一圈线匝 515， 线圈 506的一圈线匝 516， 这两圈线匝紧密相邻。 图 5B 所示组成单元 512的线匝 515的顶层部分 519， 线匝 516的顶层部分 520。 线匝 515的顶层部分 519和线匝 516的顶层部 分 520紧密相邻。 图 5C所示组成单元 512的线匝 515的底层部分 523， 线匝 516的底层部分 524。 线匝 515的底层部分 523和线匝 516的底层部分 524紧密相邻。
图 1 1所示的是依据本发明具体实施例， 两块双面 PCB开口罗氏线圈 500的一半线圈 501右侧局部细节。 图 1 1 A所 示的是两块双面 PCB开口罗氏线圈 500的一半线圈 501右侧局部的顶层和底层的叠层， 图 1 1 B所示的是两块双面 PCB 开口罗氏线圈 500的一半线圈 501右侧局部的顶层， 图 1 1 C所示的是两块双面 PCB开口罗氏线圈 500的一半线圈 501右 侧局部的底层。
图 1 1 A所示两块双面 PCB开口罗氏线圈 500的一半线圈 501的一个组成单元 600的顶层和底层的叠层， 包括线圈
503的一圈线匝 61 1的叠层部分， 和另一组绕线方向相反的线圈 504的一圈线匝 612的叠层部分。 线圈 503的一圈线匝 61 1的叠层部分， 包括： 进线 601、 布线 607、 过孔 609、 过孔 603、 出线 605。 线圈 504的一圈线匝 612的叠层部分， 包括： 进线 602、 布线 608、 过孔 610、 过孔 604、 出线 606。
图 1 1 B所示两块双面 PCB开口罗氏线圈 500的一半线圈 501的一个组成单元 600的顶层， 包括线圈 503的一圈线匝 61 1的顶层部分，和另一组绕线方向相反的线圈 504的一圈线匝 612的顶层部分。线圈 503的一圈线匝 61 1的顶层部分， 包括了： 进线 601， 布线 613， 过孔 609， 过孔 603， 出线 605。线圈 504的一圈线匝 612的顶层部分， 包括了： 过孔 610， 布线 614， 过孔 604。
图 1 1 C所示两块双面 PCB开口罗氏线圈 500的一半线圈 501的一个组成单元 600的底层， 包括线圈 503的一圈线匝 61 1的底层部分，和另一组绕线方向相反的线圈 504的一圈线匝 612的底层部分。线圈 503的一圈线匝 61 1的底层部分， 包括了： 过孔 609， 布线 615， 过孔 603。线圈 504的一圈线匝 612的底层部分， 包括了： 进线 602， 布线 616， 过孔 610， 过孔 604， 出线 606。
图 1 1 A、 图 1 1 B、 图 1 1 C所示， 线圈 503的一圈线匝 61 1的矩形绕线部分， 由布线 613、 过孔 609、 布线 615、 过孔
604组成， 矩形绕线部分的顶层布线 613和底层布线 615， 在垂直于 PCB表面的方向上是重叠的。 另一组绕线方向相 反的线圈 504的一圈线匝 612的矩形绕线部分， 由布线 616、 过孔 610、 布线 614、 过孔 604组成， 矩形绕线部分的底 层布线 616和顶层布线 614在垂直于 PCB表面的方向上是重叠的。
图 1 1 A、 图 1 1 B、 图 1 1 C所示， 线圈 503的一圈线匝 61 1的矩形绕线截面方向， 线圈 504的一圈线匝 612的矩形绕 线截面方向，近似沿通过两块双面 PCB开口罗氏线圈 500的中心和该绕线截面中心的射线方向， 即两块双面 PCB开口 罗氏线圈 500的各个组成单元中心所在磁力线， 在该绕线截面中心位置的法线方向。
图 1 1 A、 图 1 1 B、 图 1 1 C所示， 线圈 503的一圈线匝 61 1的矩形绕线截面， 及线圈 504的一圈线匝 612的矩形绕线 截面， 和通过两块双面 PCB开口罗氏线圈 500的中心和该绕线截面中心的射线方向近似垂直， 即两块双面 PCB开口罗 氏线圈 500的各个组成单元中心所在磁力线， 在该绕线截面中心位置的切线方向。
图 1 1 A、 图 1 1 B、 图 1 1 C所示， 两块双面 PCB开口罗氏线圈 500的一半线圈 501的第一个组成单元上设置了外部接 入点 508， 连接第一个组成单元的线圈 503的第一匝线圈的进线。两块双面 PCB开口罗氏线圈 500的一半线圈 501的第 一个组成单元上设置了外部接入点 507，连接第一个组成单元的另一组绕线方向相反的线圈 504的第一匝线圈的进线。
图 12所示的是依据本发明具体实施例， 两块双面 PCB开口罗氏线圈一半线圈的左侧局部细节。 图 12A所示的是 两块双面 PCB开口罗氏线圈一半线圈的左侧局部的顶层和底层的叠层，图 12B所示的是两块双面 PCB开口罗氏线圈一 半线圈的左侧局部的顶层， 图 12C所示的是两块双面 PCB开口罗氏线圈一半线圈的左侧局部的底层。
图 12A、 图 12B、 图 12C所示， 两块双面 PCB开口罗氏线圈 500的一半线圈 501的最后一个组成单元 701上， 线圈 503的过孔 702的出线， 和另一组绕线方向相反的线圈 504的过孔 703的出线， 直接通过布线 704相连， 实现两块双面 PCB开口罗氏线圈 500的一半线圈 501的两组绕线方向相反的线圈 503和 504之间的串联。 (四） 多块 PCB开口罗氏线圈
在该能对抗外界磁场干扰的多块 PCB开口罗氏线圈中， 包括两组串联的绕线方向相反的线圈， 分别为第 1线圈和 第 2线圈， 每块 PCB上都有第 1线圈和第 2线圈的一部分。
该能对抗外界磁场干扰的多块 PCB开口罗氏线圈， 具体由两半 PCB罗氏线圈组成， 每一半 PCB罗氏线圈由 N块 PCB层叠而成。每一半 PCB罗氏线圈设有两个信号输出端， 分别为第 1信号输出端和第 2信号输出端。第 1信号输出端 和第 2信号输出端所在的 PCB为第 1 PCB， 与第 1 PCB相邻的 PCB为第 2 PCB, 如果 N 5=3， 则以此类推， 依次为第 3 PCB , 直到第 N PCB。
每一半 PCB罗氏线圈的第 1 PCB到第 N-1 PCB上设置了 4个外部接入点： 第 1外部接入点、 第 2外部接入点、 第 3 外部接入点、 第 4外部接入点， 第 1外部接入点、 第 3外部接入点分别为第 1 PCB到第 N-1 PCB上第 1线圈的起点和终 点， 第 2外部接入点、 第 4外部接入点分别为第 1 PCB到第 N-1 PCB上第 2线圈的起点和终点。 每一半 PCB罗氏线圈的 第 N PCB上设置了两个外部接入点：第 1外部接入点、第 2外部接入点，第 1外部接入点为第 N PCB上第 1线圈的起点， 第 2外部接入点为第 N PCB上第 2线圈的起点。
每一半 PCB罗氏线圈的第 1 PCB上的第 1外部接入点为第 1信号输出端， 第 1 PCB上的第 2外部接入点为第 2信号 输出端。每一半 PCB罗氏线圈的层叠的相邻 PCB中上一块 PCB的第 3外部接入点与下一块 PCB上的第 1外部接入点相 连， 实现上一块 PCB上的第 1线圈部分和下一块 PCB上的第 1线圈部分的串联， 形成完整的第 1线圈。 每一半 PCB罗 氏线圈的层叠的相邻 PCB中上一块 PCB的第 4外部接入点与下一块 PCB上的第 2外部接入点相连， 实现上一块 PCB 上的第 2线圈部分和下一块 PCB上的第 2线圈部分的串联，形成完整的第 2线圈。每一半 PCB罗氏线圈的第 1线圈和第 2线圈在第 N PCB上直接串联起来， 形成能对抗外界磁场干扰的多块 PCB开口罗氏线圈的一半。
该多块 PCB开口罗氏线圈的两半 PCB罗氏线圈有两种连接方式： 两半 PCB罗氏线圈的第 1信号输出端直接相连， 两半 PCB罗氏线圈的第 2信号输出端作为多块 PCB开口罗氏线圈的两个信号输出端，分别为第 1信号输出端和第 2信号 输出端； 两半 PCB罗氏线圈的第 2信号输出端直接相连， 两半 PCB罗氏线圈的第 1信号输出端作为多块 PCB开口罗氏 线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端。
该多块 PCB开口罗氏线圈的每块 PCB都是由若干个相同的组成单元串联而成，每一个组成单元包括了第 1线圈和 第 2线圈的各一圈线匝， 这两圈线匝紧密相邻。 其中，两圈线匝紧密相邻可以理解为： 两圈线匝之间的最小间距等于 PCB板的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关，如 PCB板的最小安全间距为 6mi l (密耳），即 0. 1524mm (毫米） 。 该多块 PCB开口罗氏线圈的每块 PCB的每一个组成单元的第 1线圈的一圈线匝包括： 进线、 绕线、 出线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于第 1线圈的线匝，绕线由位于不同层的布线和不同层 之间的过孔环绕而成。多块 PCB开口罗氏线圈的每块 PCB的每一个组成单元的第 2线圈的一圈线匝包括：进线、绕线、 出线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于第 2线圈的线匝， 绕线由位于不同层的布线和 不同层之间的过孔环绕而成。 具体的， 顶层布线和底层布线路径重合， 由顶层布线， 底层布线、 两个过孔环绕而成 的绕线所围成的截面类似一个矩形。
该多块 PCB开口罗氏线圈的第 1 PCB到第 N PCB的第 1个组成单元的第 1线圈的一圈线匝的进线与第 1 PCB到第 N PCB的第 1外部接入点相连， 第 1 PCB到第 N PCB的第 1个组成单元的第 2线圈的一圈线匝的进线与第 1 PCB到第 N PCB的第 2外部接入点相连。第 1 PCB到第 N-1 PCB的最后 1个组成单元的第 1线圈的一圈线匝的出线与第 1 PCB到第 N-1 PCB的第 3外部接入点相连， 第 1 PCB到第 N-1 PCB的最后 1个组成单元的第 2线圈的一圈线匝的出线与第 1 PCB 到第 N-1 PCB的第 4外部接入点相连。第 N PCB的最后 1个组成单元的第 1线圈的一圈线匝的出线，与第 N PCB的最后 1个组成单元的第 2线圈的一圈线匝的出线， 直接相连， 实现第 1线圈和第 2线圈在第 N PCB上的串联。
该能对抗外界磁场干扰的多块 PCB开口罗氏线圈中， 每一个组成单元两圈线匝的绕线围成的截面垂直于 PCB表 面， 绕线围成的截面位于 PCB的横截面上， 绕线的布线路径在垂直于 PCB表面的方向上重合。
该能对抗外界磁场干扰的多块 PCB开口罗氏线圈中， 每块 PCB上各个组成单元的中心均匀分布在待测电流产生 的磁场的一条磁力线上， 所有组成单元两圈线匝的绕线截面方向近似沿通过该绕线截面中心的磁力线法线方向， 所 有组成单元两圈线匝的绕线截面和通过该绕线截面中心的磁力线切线方向 （即磁场强度方向）近似垂直。
多块 PCB开口罗氏线圈中， PCB板为双面 PCB， 第一线圈和第二线圈位于 PCB板的上下两面， 因此， 多块 PCB 开口罗氏线圈可以称为多块双面 PCB开口罗氏线圈。
在该能对抗外界磁场干扰的多块双面 PCB开口罗氏线圈中， 包括两组串联的绕线方向相反的线圈， 分别为第一 线圈和第二线圈， 每块双面 PCB上都有第一线圈和第二线圈的一部分。
该能对抗外界磁场干扰的多块双面 PCB开口罗氏线圈，具体由两半 PCB罗氏线圈组成，每一半 PCB罗氏线圈由 N 块双面 PCB层叠而成。每一半 PCB罗氏线圈设有两个信号输出端，分别为第 1信号输出端和第 2信号输出端。第 1信号 输出端和第 2信号输出端所在的 PCB为第 1 PCB， 与第 1 PCB相邻的 PCB为第 2 PCB, 如果 N 5=3， 则以此类推， 依次 为第 3 PCB, 直到第 N PCB。
每一半 PCB罗氏线圈的第 1 PCB到第 N-1 PCB上设置了 4个外部接入点： 第 1外部接入点、 第 2外部接入点、 第 3 外部接入点、 第 4外部接入点， 第 1外部接入点、 第 3外部接入点分别为第 1 PCB到第 N-1 PCB上第一线圈的起点和终 点， 第 2外部接入点、 第 4外部接入点分别为第 1 PCB到第 N-1 PCB上第二线圈的起点和终点。 每一半 PCB罗氏线圈 的第 N PCB上设置了两个外部接入点： 第 1外部接入点、第 2外部接入点，第 1外部接入点为第 N PCB上第一线圈的起 点， 第 2外部接入点为第 N PCB上第二线圈的起点。
每一半 PCB罗氏线圈的第 1 PCB上的第 1外部接入点为第 1信号输出端， 第 1 PCB上的第 2外部接入点为第 2信号 输出端。每一半 PCB罗氏线圈的层叠的相邻 PCB中上一块 PCB的第 3外部接入点与下一块 PCB上的第 1外部接入点相 连， 实现上一块 PCB上的第一线圈部分和下一块 PCB上的第一线圈部分的串联， 形成完整的第一线圈。每一半 PCB 罗氏线圈的层叠的相邻 PCB中上一块 PCB的第 4外部接入点与下一块 PCB上的第 2外部接入点相连，实现上一块 PCB 上的第二线圈部分和下一块 PCB上的第二线圈部分的串联， 形成完整的第二线圈。每一半 PCB罗氏线圈的第一线圈 和第二线圈在第 N PCB上直接串联起来， 形成能对抗外界磁场干扰的多块双面 PCB开口罗氏线圈的一半。
该多块双面 PCB开口罗氏线圈的两半 PCB罗氏线圈有两种连接方式：两半 PCB罗氏线圈的第 1信号输出端直接相 连， 两半 PCB罗氏线圈的第 2信号输出端作为多块双面 PCB开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端 和第 2信号输出端；两半 PCB罗氏线圈的第 2信号输出端直接相连，两半 PCB罗氏线圈的第 1信号输出端作为多块双面 PCB开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端。
该多块双面 PCB开口罗氏线圈的每块双面 PCB都是由若干个相同的组成单元串联而成， 每一个组成单元包括了 第一线圈和第二线圈的各一圈线匝， 这两圈线匝紧密相邻。 其中，两圈线匝紧密相邻可以理解为： 两圈线匝之间的最 小间距等于 PCB板的最小安全间距， PCB板的最小安全间距与 PCB板工艺相关，如 PCB板的最小安全间距为 6mi l (密耳）， 即 0. 1524mm (毫米） 。
该多块双面 PCB开口罗氏线圈的每块双面 PCB的每一个组成单元的第一线圈的一圈线匝包括： 进线、 绕线、 出 线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于第一线圈的线匝， 绕线由位于顶层和底层的布 线和顶层和底层之间的过孔环绕而成。 多块双面 PCB开口罗氏线圈的每块双面 PCB的每一个组成单元的第二线圈的 一圈线匝包括： 进线、 绕线、 出线， 进线和出线分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线 匝， 绕线由位于顶层和底层的布线和顶层和底层之间的过孔环绕而成。 具体的， 顶层布线和底层布线路径重合， 由 顶层布线， 底层布线、 两个过孔环绕而成的绕线所围成的截面类似一个矩形。
该多块双面 PCB开口罗氏线圈的第 1 PCB到第 N PCB的第 1个组成单元的第一线圈的一圈线匝的进线与第 1
PCB到第 N PCB的第 1外部接入点相连， 第 1 PCB到第 N PCB的第 1个组成单元的第二线圈的一圈线匝的进线与第 1 PCB到第 N PCB的第 2外部接入点相连。 第 1 PCB到第 N-1 PCB的最后 1个组成单元的第一线圈的一圈线匝的出线与 第 1 PCB到第 N-1 PCB的第 3外部接入点相连，第 1 PCB到第 N-1 PCB的最后 1个组成单元的第二线圈的一圈线匝的出 线与第 1 PCB到第 N-1 PCB的第 4外部接入点相连。 第 N PCB的最后 1个组成单元的第一线圈的一圈线匝的出线， 与 第 N PCB的最后 1个组成单元的第二线圈的一圈线匝的出线，直接相连， 实现第一线圈和第二线圈在第 N PCB上的串 联。 该能对抗外界磁场干扰的多块双面 PCB开口罗氏线圈中， 每一个组成单元两圈线匝的绕线围成的截面垂直于双 面 PCB表面， 绕线围成的截面位于双面 PCB的横截面上， 绕线的顶层和底层布线路径在垂直于双面 PCB表面的方向 上重合。
该能对抗外界磁场干扰的多块双面 PCB开口罗氏线圈中， 每块双面 PCB上各个组成单元的中心均匀分布在待测 电流产生的磁场的一条磁力线上， 所有组成单元两圈线匝的绕线截面方向近似沿通过该绕线截面中心的磁力线法线 方向， 所有组成单元两圈线匝的绕线截面和通过该绕线截面中心的磁力线切线方向 （即磁场强度方向）近似垂直。
图 13所示的是本发明具体实施例由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500第 1层到第 N-1层双 面 PCB， 适用于测量垂直穿过 PCB开口罗氏线圈 500中心的载流导体 1 13上流过的电流， 该电流产生的交变磁场磁力 线为一族以 PCB开口罗氏线圈 500中心为圆心的圆。 图 13A所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗 氏线圈 500第 1层到第 N-1层双面 PCB的顶层和底层的叠层， 图 13B所示的是由 N层双面 PCB层叠而成的多块双面 PCB 开口罗氏线圈 500第 1层到第 N-1层双面 PCB的顶层， 图 13C所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗 氏线圈 500第 1层到第 N-1层双面 PCB的底层。
由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500第 1层到第 N-1层双面 PCB包括了两半双面 PCB罗氏 线圈， 分别是线圈 501和线圈 502。 线圈 501上包括了两组绕线方向相反的线圈： 线圈 503和线圈 504， 线圈 503和 线圈 504组成一半双面 PCB罗氏线圈 501。 线圈 502上包括了两组绕线方向相反的线圈： 线圈 505和线圈 506， 线圈 505和线圈 506组成一半双面 PCB罗氏线圈 502。
线圈 501设置了 4个外部接入点： 507、 508、 517、 518。 外部接入点 508作为线圈 503的起点， 外部接入点 517 作为线圈 503的终点。 外部接入点 507作为线圈 504的起点， 外部接入点 518作为线圈 504的终点。
线圈 502设置了 4个外部接入点： 509、 510、 519、 520。 外部接入点 510作为线圈 505的起点， 外部接入点 519 作为线圈 505的终点。 外部接入点 509作为线圈 506的起点， 外部接入点 520作为线圈 506的终点。
线圈 501由许多个相同的组成单元串联而成， 如图 13A所示的一个组成单元 51 1。 如图 13A、 图 13B、 图 13C所 示， 组成单元 51 1的中心， 和其他组成单元的中心， 位于载流导体 1 13上流过的电流产生的一条圆形磁力线上， 各个 组成单元均匀分布在这条圆形磁力线上。
线圈 501的每个组成单元， 包括两组绕线方向相反的线圈： 线圈 503和线圈 504的各一圈线匝， 组成单元 51 1包 括了线圈 503的一圈线匝 513， 线圈 504的一圈线匝 514， 这两圈线匝紧密相邻。 图 13B所示组成单元 51 1的线匝 513 的顶层部分 521， 线匝 514的顶层部分 522。 线匝 513的顶层部分 521和线匝 514的顶层部分 522紧密相邻。 图 13C所示 了组成单元 51 1的线匝 513的底层部分 526， 线匝 514的底层部分 527。 线匝 513的底层部分 526和线匝 514的底层部分 527紧密相邻。
线圈 502由许多个相同的组成单元串联而成， 如图 13A所示的一个组成单元 512。 如图 13A、 图 13B、 图 13C所 示， 组成单元 512的中心， 和其他组成单元的中心， 位于载流导体 1 13上流过的电流产生的一条圆形磁力线上， 各个 组成单元均匀分布在这条圆形磁力线上。
线圈 502的每个组成单元， 包括两组绕线方向相反的线圈： 线圈 505和线圈 506的各一圈线匝， 组成单元 512包 括了线圈 505的一圈线匝 515， 线圈 506的一圈线匝 516， 这两圈线匝紧密相邻。 图 13B所示了组成单元 512的线匝 515 的顶层部分 523， 线匝 516的顶层部分 524。 线匝 515的顶层部分 523和线匝 516的顶层部分 524紧密相邻。 图 13C所示 组成单元 512的线匝 515的底层部分 528，线匝 516的底层部分 529。线匝 515的底层部分 528和线匝 516的底层部分 529 紧密相邻。
图 14所示的是依据本发明具体实施例， 由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500第 N层双面 PCB。 图 14A所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500第 N层双面 PCB的顶层和底层的叠 层，图 14B所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500第 N层双面 PCB的顶层，图 14C所示的 是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500第 N层双面 PCB的底层。
由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500第 N层双面 PCB包括了两半双面 PCB罗氏线圈， 分别 是线圈 601和线圈 602。 线圈 601上包括了两组绕线方向相反的线圈： 线圈 603和线圈 604， 线圈 603和线圈 604组 成一半双面 PCB罗氏线圈 601。 线圈 602上包括了两组绕线方向相反的线圈： 线圈 606和线圈 606， 线圈 606和线圈 606组成一半双面 PCB罗氏线圈 602。
线圈 601设置了 2个外部接入点： 607、 608。 外部接入点 608作为线圈 603的起点， 外部接入点 607作为线圈 604 的起点。
线圈 602设置了 2个外部接入点： 609、 610。 外部接入点 610作为线圈 605的起点， 外部接入点 609作为线圈 606 的起点。
线圈 601由许多个相同的组成单元串联而成， 如图 14A所示的一个组成单元 61 1。 如图 14A、 图 14B、 图 14C所 示， 组成单元 61 1的中心， 和其他组成单元的中心， 位于载流导体 1 13上流过的电流产生的一条圆形磁力线上， 各个 组成单元均匀分布在这条圆形磁力线上。
线圈 601的每个组成单元， 包括两组绕线方向相反的线圈： 线圈 603和线圈 604的各一圈线匝， 组成单元 61 1包 括了线圈 603的一圈线匝 613， 线圈 604的一圈线匝 614， 这两圈线匝紧密相邻。 图 14B所示组成单元 61 1的线匝 613 的顶层部分 617， 线匝 614的顶层部分 618。 线匝 613的顶层部分 617和线匝 614的顶层部分 618紧密相邻。 图 14C所示 组成单元 61 1的线匝 613的底层部分 621，线匝 614的底层部分 622。线匝 613的底层部分 621和线匝 614的底层部分 622 紧密相邻。
线圈 602由许多个相同的组成单元串联而成， 如图 14A所示的一个组成单元 612。 如图 14A、 图 14B、 图 14C所 示， 组成单元 612的中心， 和其他组成单元的中心， 位于载流导体 1 13上流过的电流产生的一条圆形磁力线上， 各个 组成单元均匀分布在这条圆形磁力线上。
线圈 602的每个组成单元， 包括两组绕线方向相反的线圈： 线圈 605和线圈 606的各一圈线匝， 组成单元 612包 括了线圈 605的一圈线匝 615， 线圈 606的一圈线匝 616， 这两圈线匝紧密相邻。 图 14B所示组成单元 612的线匝 615 的顶层部分 619， 线匝 616的顶层部分 620。 线匝 615的顶层部分 619和线匝 616的顶层部分 620紧密相邻。 图 14C所示 组成单元 612的线匝 615的底层部分 623，线匝 616的底层部分 624。线匝 615的底层部分 623和线匝 616的底层部分 624 紧密相邻。
图 15所示的是依据本发明具体实施例， 由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500—半的第 1到 第 N-1双面 PCB的右侧局部细节。 图 15A所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500—半的 第 1到第 N-1双面 PCB的顶层和底层的叠层， 图 15B所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500—半的第 1到第 N-1双面 PCB的顶层， 图 15C所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500 一半的第 1到第 N-1双面 PCB的底层。
图 15A所示线圈 501的一个组成单元 700的顶层和底层的叠层， 包括线圈 503的一圈线匝 71 1的叠层部分， 和另一 组绕线方向相反的线圈 504的一圈线匝 712的叠层部分。 线圈 503的一圈线匝 71 1的叠层部分， 包括： 进线 701、 布线 707、 过孔 709、 过孔 703、 出线 705。 线圈 504的一圈线匝 712的叠层部分， 包括： 进线 702、 布线 708、 过孔 710、 过孔 704、 出线 706。
图 15B所示线圈 501的一个组成单元 700的顶层， 包括线圈 503的一圈线匝 71 1的顶层部分， 和另一组绕线方向相 反的线圈 504的一圈线匝 712的顶层部分。 线圈 503的一圈线匝 71 1的顶层部分， 包括了： 进线 701， 布线 713， 过孔 709, 过孔 703， 出线 705。 线圈 504的一圈线匝 712的顶层部分， 包括了： 过孔 710， 布线 714， 过孔 704。
图 15C所示线圈 501的一个组成单元 700的底层， 包括线圈 503的一圈线匝 71 1的底层部分， 和另一组绕线方向相 反的线圈 504的一圈线匝 712的底层部分。 线圈 503的一圈线匝 71 1的底层部分， 包括了： 过孔 709， 布线 715， 过孔 703。 线圈 504的一圈线匝 712的底层部分， 包括了： 进线 702， 布线 716， 过孔 710， 过孔 704， 出线 706。
图 15A、 图 15B、 图 15C所示， 线圈 503的一圈线匝 71 1的矩形绕线部分， 由布线 713、 过孔 709、 布线 715、 过孔 704组成， 矩形绕线部分的顶层布线 713和底层布线 715， 在垂直于 PCB表面的方向上是重叠的。 另一组绕线方向相 反的线圈 504的一圈线匝 712的矩形绕线部分， 由布线 716、 过孔 710、 布线 714、 过孔 704组成， 矩形绕线部分的底 层布线 716和顶层布线 714在垂直于 PCB表面的方向上是重叠的。
图 15A、 图 15B、 图 15C所示， 线圈 503的一圈线匝 71 1的矩形绕线截面方向， 线圈 504的一圈线匝 712的矩形绕 线截面方向， 近似沿通过由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500的中心和该绕线截面中心的射线 方向， 即多块双面 PCB开口罗氏线圈 500的各个组成单元中心所在磁力线， 在该绕线截面中心位置的法线方向。
图 15A、 图 15B、 图 15C所示， 线圈 503的一圈线匝 71 1的矩形绕线截面， 及线圈 504的一圈线匝 712的矩形绕线 截面， 和通过由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500的中心和该绕线截面中心的射线方向近似垂 直， 即多块双面 PCB开口罗氏线圈 500的各个组成单元中心所在磁力线， 在该绕线截面中心位置的切线方向。
图 15A、 图 15B、 图 15C所示， 线圈 501的第一个组成单元上设置了外部接入点 508， 连接第一个组成单元的线圈 503的第一匝线圈的进线。 线圈 501的第一个组成单元上设置了外部接入点 507， 连接第一个组成单元的另一组绕线 方向相反的线圈 504的第一匝线圈的进线。
图 16所示的是依据本发明具体实施例， 由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500—半的第 N双 面 PCB的左侧局部细节。 图 16A所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500—半的第 N双面 PCB的左侧局部的顶层和底层的叠层， 图 16B所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500— 半的第 N双面 PCB的左侧局部的顶层， 图 16C所示的是由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500— 半的第 N双面 PCB的左侧局部的底层。
图 16A、 图 16B、 图 16C所示， 由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500—半的第 N双面 PCB的 最后一个组成单元 801上， 线圈 603的过孔 802的出线， 和另一组绕线方向相反的线圈 604的过孔 803的出线， 直接通 过顶层布线 804相连， 实现由 N层双面 PCB层叠而成的多块双面 PCB开口罗氏线圈 500—半的第 N双面 PCB的两组绕 线方向相反的线圈 603和 604之间的串联。 以上所述， 仅为本发明较佳的具体实施方式， 但本发明的保护范围并不局限于此， 任何熟悉本技术领域的技术 人员在本发明披露的技术范围内， 可轻易想到的变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的 保护范围应该以权利要求书的保护范围为准。

Claims

权利要求
1、 一种 PCB罗氏线圈， 其特征在于， 包括两组串联的绕线方向相反的第一线圈和第二线圈， 所述第一线圈和第 二线圈分别包含多圈线匝， 且：
所述第一线圈的一圈线匝包括： 第一进线、 第一绕线和第一出线， 所述第一线圈的各圈线匝的第一绕线之间平 行设置， 所述第一绕线分别布置于 PCB板的上下两面上， 所述第一进线穿过 PCB板上的第一过孔与第一绕线连接， 所 述第一绕线穿过第二过孔并与所述第一出线连接， 所述第一出线还与第一线圈的下一圈线匝的第一进线连接； 所述第二线圈的一圈线匝包括： 第二进线、 第二绕线和第二出线， 所述第二线圈的各圈线匝的第二绕线之间平 行设置， 所述第二绕线分别布置于 PCB板的上下两面上， 所述第二进线与第二绕线连接， 且所述第二绕线穿过 PCB板 上的第三过孔通过第四过孔引出后与第二出线连接， 所述第二出线还与第二线圈的下一圈线匝的第二进线连接； 所述第一过孔和第四过孔相邻设置， 所述第二过孔和第三过孔相邻设置， 且所述第一绕线与所述第二绕线之间 的距离小于相邻两圈线匝之间的距离。
2、 根据权利要求 1所述的 PCB罗氏线圈， 其特征在于， 所述第一线圈和第二线圈设置于单块 PCB板上组成单块 PCB闭合罗氏线圈； 或者， 所述第一线圈和第二线圈设置于多块层叠而成的 PCB板上组成多块 PCB闭合罗氏线圈； 或者， 所述第一线圈和第二线圈设置于两块 PCB板上组成两块 PCB开口罗氏线圈； 或者， 所述第一线圈和第二线圈 设置于多块 PCB板上组成多块 PCB开口罗氏线圈； 其中，
所述多块 PCB闭合罗氏线圈中， 多块 PCB板层叠设置， 且所述第一线圈和第二线圈的多圈线匝分别缠绕设置于 多块 PCB板中的每一块 PCB板上，设置有多圈线匝的各块 PCB板之间通过各块 PCB板上设置的外部接入点依次连接； 所述两块 PCB开口罗氏线圈中， 两块 PCB板分别为半圆环形 PCB板， 所述第一线圈和第二线圈的多圈线匝分别 缠绕设置于两块 PCB板上， 设置有多圈线匝的两块 PCB板上分别设置有两个外部接入点， 两块 PCB板之间通过各自 一个外部接入点连接， 两块 PCB板的另两个外部接入点分别作为两块 PCB板各自的信号输出端；
所述多块 PCB开口罗氏线圈中， 多块 PCB板层叠设置分别组成两组半圆环形 PCB板， 所述第一线圈和第二线圈 的多圈线匝分别缠绕设置于两组半圆环形 PCB板上， 在同一组半圆环形 PCB板中， 设置有多圈线匝的每块半圆环形 PCB板之间通过各自的外部接入点连接， 并将一块半圆环形 PCB板的另两个外部接入点中的一个作为与另一组半圆 环形 PCB板之间连接的点， 另一个作为本组半圆环形 PCB板的信号输出端；
3、 根据权利要求 2所述的 PCB罗氏线圈， 其特征在于， 所述单块 PCB闭合罗氏线圈：
( a)所述第一线圈的一圈线匝和相邻的所述第二线圈的一圈线匝构成一个组成单元， 所述组成单元中的两圈线 匝紧密相邻， 若干个相同的组成单元串联；
禾 Π/或， （b ) 每个所述组成单元的第一线圈的第一进线和第一出线分别连接上一个组成单元和下一个组成单元 属于所述第一线圈的线匝， 所述第一绕线由位于顶层和底层的布线和顶层底层之间的第一过孔和第二过孔环绕而成； 每个所述组成单元的第二线圈的第二进线和第二出线分别连接上一个组成单元和下一个组成单元属于所述第二线圈 的线匝， 第二绕线由位于顶层和底层的布线和顶层底层之间的第三过孔和第四过孔环绕而成。
4、 根据权利要求 2或 3所述的 PCB罗氏线圈， 其特征在于， 所述单块 PCB闭合罗氏线圈：
( a)设有两个信号输出端： 第一信号输出端和第二信号输出端， 和所述第一信号输出端相连的是所述第一线圈 的第一圈线匝的第一进线， 和所述第二信号输出端相连的是所述第二线圈的第一圈线匝的第二进线， 所述第一线圈 的最后一圈线匝的第一出线与所述第二线圈的最后一圈线匝的第二出线相连， 实现单块 PCB闭合罗氏线圈的第一线圈 和第二线圈之间的串联；
禾 Π/或， （b )所述第一线圈的各圈线匝的第一绕线围成的截面位于 PCB的横截面上， 所述第一线圈的各圈线匝的 第一绕线在垂直于 PCB表面的方向上重合； 所述第二线圈的各圈线匝的第二绕线围成的截面位于 PCB的横截面上， 所述第二线圈的各圈线匝的第二绕线在垂直于 PCB表面的方向上重合；
和 /或， （c )所有组成单元的中心均匀分布在待测电流产生的磁场的一条磁力线上， 所有组成单元的第一线圈的 线匝的绕线围成的截面方向近似为通过该绕线截面中心的磁力线法线方向， 第一线圈的线匝的绕线围成的截面和通 过该绕线截面中心的磁力线切线方向近似垂直； 所有组成单元的第二线圈的线匝的绕线围成的截面方向近似为通过 该绕线截面中心的磁力线法线方向， 第二线圈的线匝的绕线围成的截面和通过该绕线截面中心的磁力线切线方向近 似垂直。
5、 根据权利要求 2所述的 PCB罗氏线圈， 其特征在于， 所述多块 PCB闭合罗氏线圈：
( a) 设有两个信号输出端： 第 1信号输出端和第 2信号输出端， N块层叠的 PCB板中， 所述第 1信号输出端和第 2 信号输出端所在的 PCB板为第 1 PCB， 与第 1 PCB相邻的 PCB板为第 2 PCB， 直到第 N PCB;
禾口 /或， （b ) 所述第 1 PCB到第 N-1 PCB上设置了 4个外部接入点： 第 1外部接入点、 第 2外部接入点、 第 3外部 接入点、 第 4外部接入点； 所述第 1外部接入点、 第 3外部接入点分别为所述第 1 PCB到第 N-1 PCB上第一线圈的起点 和终点， 所述第 2外部接入点、 第 4外部接入点分别为所述第 1 PCB到第 N-1 PCB上第二线圈的起点和终点； 所述第 N PCB上设置了两个外部接入点：第 1外部接入点、第 2外部接入点，所述第 1外部接入点为第 N PCB上第一线圈的起点， 所述第 2外部接入点为第 N PCB上第二线圈的起点；
禾口 /或， （c ) 所述第 1 PCB上的第 1外部接入点为所述第 1信号输出端， 所述第 1 PCB上的第 2外部接入点为所述 第 2信号输出端；
禾口 /或， （d)层叠的相邻 PCB板中上一块 PCB板的第 3外部接入点与下一块 PCB板上的第 1外部接入点相连， 实 现上一块 PCB上的第一线圈部分和下一块 PCB上的第一线圈部分的串联， 形成完整的第一线圈； 层叠的相邻 PCB板 中上一块 PCB板的第 4外部接入点与下一块 PCB板上的第 2外部接入点相连，实现上一块 PCB上的第二线圈部分和下 一块 PCB上的第二线圈部分的串联， 形成完整的第二线圈； 所述第一线圈和所述第二线圈在第 N PCB上直接串联起 来。
6、 根据权利要求 2或 5所述的 PCB罗氏线圈， 其特征在于， 所述多块 PCB闭合罗氏线圈：
( a)每块所述 PCB板中所述第一线圈的一圈线匝和相邻的所述第二线圈的一圈线匝构成一个组成单元， 若干个 相同的组成单元串联， 所述组成单元中的两圈线匝紧密相邻；
禾 Π/或， （b ) 每个组成单元的第一线圈的第一进线和第一出线分别用于连接上一个组成单元和下一个组成单元 属于第一线圈的线匝， 第一绕线由位于顶层和底层的布线和顶层、 底层之间的第一过孔和第二过孔环绕而成； 每个 组成单元的第二线圈的第二进线和第二出线分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线匝， 第二绕线由位于顶层和底层的布线和顶层、 底层之间的第三过孔和第四过孔环绕而成；
禾 Π/或， （c )第 1 PCB到第 N PCB的第 1个组成单元的第一线圈的一圈线匝的第一进线与第 1 PCB到第 N PCB的 第 1外部接入点相连， 第 1 PCB到第 N PCB的第 1个组成单元的第二线圈的一圈线匝的第二进线与第 1 PCB到第 N PCB的第 2外部接入点相连;第 1 PCB到第 N-1 PCB的最后 1个组成单元的第一线圈的一圈线匝的第一出线与第 1 PCB 到第 N-1 PCB的第 3外部接入点相连，第 1 PCB到第 N-1 PCB的最后 1个组成单元的第二线圈的一圈线匝的第二出线与 第 1 PCB到第 N-1 PCB的第 4外部接入点相连； 第 N PCB的最后 1个组成单元的第一线圈的一圈线匝的第一出线， 与 第 N PCB的最后 1个组成单元的第二线圈的一圈线匝的第二出线直接相连，实现第一线圈和第二线圈在第 N PCB上串 联；
禾 Π/或， （d) 每一个所述组成单元的两圈线匝的绕线围成的截面垂直于所述 PCB表面， 所述绕线围成的截面位 于所述 PCB的横截面上， 所述绕线的布线路径在垂直于所述 PCB表面的方向上重合；
和 /或， （e ) 每块所述 PCB上各个所述组成单元的中心均匀分布在待测电流产生的磁场的一条磁力线上， 所有 所述组成单元的两圈线匝的绕线截面方向沿通过该绕线截面中心的磁力线法线方向， 所有组成单元两圈线匝的绕线 截面和通过该绕线截面中心的磁力线切线方向近似垂直。
7、 根据权利要求 2所述的 PCB罗氏线圈， 其特征在于， 所述两块 PCB开口罗氏线圈：
( a) 每块所述 PCB板上设置了两个外部接入点： 第 1外部接入点、 第 2外部接入点； 每块所述 PCB板上的第 1外 部接入点为所述 PCB板上的第一线圈的起点， 所述 PCB板上的第 2外部接入点为所述 PCB板上的第二线圈的终点； 禾 Π/或， （b ) 两块所述 PCB板有两种连接方式： 两块所述 PCB板的第 1外部接入点直接相连， 两块所述 PCB板的 第 2外部接入点作为所述两块 PCB开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端； 或者， 所述两块 PCB板的第 2外部接入点直接相连， 所述两块 PCB的第 1外部接入点作为所述两块 PCB开口罗氏线圈的两个 信号输出端， 分别为第 1信号输出端和第 2信号输出端。
8、 根据权利要求 2或 7所述的 PCB罗氏线圈， 其特征在于， 所述两块 PCB开口罗氏线圈：
( a)所述两块 PCB开口罗氏线圈的每块 PCB板中所述第一线圈的一圈线匝和相邻的所述第二线圈的一圈线匝构 成一个组成单元， 若干个相同的组成单元串联， 所述组成单元中的两圈线匝紧密相邻；
禾 Π/或， （b ) 每个组成单元的第一线圈的第一进线和第一出线分别用于连接上一个组成单元和下一个组成单元 属于第一圈的线匝， 第一绕线由位于顶层和底层的布线和顶层、 底层之间的第一过孔和第二过孔环绕而成； 每个组 成单元的第二线圈的第二进线和第二出线分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线匝， 第 二绕线由位于顶层和底层的布线和顶层、 底层之间的第三过孔和第四过孔环绕而成；
禾 Π/或， （c ) ， 所述第 1信号输出端所在的 PCB板为第 1 PCB， 所述第 2信号输出端所在的 PCB板为第 2 PCB; 所述 第 1 PCB第 1个组成单元的第一线圈的一圈线匝的第一进线与所述第 1 PCB的第 1外部接入点相连， 所述第 1 PCB第 1 个组成单元的第二线圈的一圈线匝的第二进线与所述第 1 PCB的第 2外部接入点相连;所述第 2 PCB第 1个组成单元的 第一线圈的一圈线匝的第一进线与所述第 2 PCB的第 1外部接入点相连， 所述第 2 PCB第 1个组成单元的第二线圈的一 圈线匝的第二进线与所述第 2 PCB的第 2外部接入点相连；
禾 Π/或， （d) 所述第 1 PCB最后 1个组成单元的第一线圈的一圈线匝的第一出线， 与所述第 1 PCB最后 1个组成单 元的第二线圈的一圈线匝的第二出线直接相连， 实现所述第一线圈和所述第二线圈在第 1 PCB上的串联； 所述第 2 PCB的最后 1个组成单元的第一线圈的一圈线匝的第一出线， 与所述第 2 PCB的最后 1个组成单元的第二线圈的一圈 线匝的第二出线直接相连， 实现所述第一线圈和所述第二线圈在第 2 PCB上的串联；
和 /或， （e ) 每个所述组成单元的两圈线匝的绕线围成的截面垂直于所述 PCB表面， 所述绕线围成的截面位于 所述 PCB的横截面上， 所述绕线的布线路径在垂直于所述 PCB表面的方向上重合；
禾口 /或， （f ) 每块所述 PCB板上各个组成单元的中心均匀分布在待测电流产生的磁场的一条磁力线上， 所有组 成单元两圈线匝的绕线截面方向近似沿通过该绕线截面中心的磁力线法线方向， 所有组成单元两圈线匝的绕线截面 和通过该绕线截面中心的磁力线切线方向近似垂直。
9、 根据权利要求 2所述的 PCB罗氏线圈， 其特征在于， 所述多块 PCB开口罗氏线圈：
( a) 同一组半圆环形 PCB板由 N块 PCB板层叠而成， 每组半圆环形 PCB板设有两个信号输出端： 第 1信号输出端 和第 2信号输出端， 所述第 1信号输出端和第 2信号输出端所在的 PCB板为第 1 PCB， 与第 1 PCB相邻的 PCB为第 2 PCB, 直到第 N PCB;
禾口 /或， （b ) 每组半圆环形 PCB板的第 1 PCB到第 N 1 PCB上设置了 4个外部接入点： 第 1外部接入点、 第 2外部接 入点、 第 3外部接入点、 第 4外部接入点， 所述第 1外部接入点、 第 3外部接入点分别为第 1 PCB到第 N 1 PCB上第一线 圈的起点和终点， 所述第 2外部接入点、 第 4外部接入点分别为第 1 PCB到第 N 1 PCB上第二线圈的起点和终点， 每组 半圆环形 PCB板的第 N PCB上设置了两个外部接入点：第 1外部接入点、第 2外部接入点，所述第 1外部接入点为第 N PCB 上第一线圈的起点， 所述第 2外部接入点为第 N PCB上第二线圈的起点；
禾口 /或， （c ) 每组半圆环形 PCB板的第 1 PCB上的第 1外部接入点为第 1信号输出端， 第 1 PCB上的第 2外部接入点 为第 2信号输出端， 每组半圆环形 PCB板中层叠的相邻 PCB板中上一块 PCB板的第 3外部接入点与下一块 PCB板上的第 1 外部接入点相连， 实现上一块 PCB板上的第一线圈部分和下一块 PCB板上的第一线圈部分的串联， 形成完整的第一线 圈； 每组半圆环形 PCB板中的层叠的相邻 PCB板中上一块 PCB板的第 4外部接入点与下一块 PCB板上的第 2外部接入点 相连， 实现上一块 PCB板上的第二线圈部分和下一块 PCB板上的第二线圈部分的串联， 形成完整的第二线圈； 每一半 PCB罗氏线圈的第一线圈和第二线圈在第 N PCB上直接串联起来， 形成一组半圆环形 PCB板；
和 /或， （d) 两组半圆环形 PCB板的第 1信号输出端直接相连， 两组半圆环形 PCB板的第 2信号输出端作为多块
PCB开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端； 或者， 两组半圆环形 PCB板的第 2信 号输出端直接相连， 两组半圆环形 PCB板的第 1信号输出端作为多块 PCB开口罗氏线圈的两个信号输出端， 分别为第 1信号输出端和第 2信号输出端。
1 0、 根据权利要求 2或 9所述的 PCB罗氏线圈， 其特征在于， 所述多块 PCB开口罗氏线圈：
( a)所述多块 PCB开口罗氏线圈的每块 PCB板中所述第一线圈的一圈线匝和相邻的所述第二线圈的一圈线匝构 成一个组成单元， 若干个相同的组成单元串联， 所述组成单元中的两圈线匝紧密相邻；
禾 Π/或， （b ) 每个组成单元的第一线圈的第一进线和第一出线分别用于连接上一个组成单元和下一个组成单元 属于第一线圈的线匝， 第一绕线由位于顶层和底层的布线和顶层和底层之间的第一过孔和第二过孔环绕而成； 每个 组成单元的第二线圈的第二进线和第二出线分别用于连接上一个组成单元和下一个组成单元属于第二线圈的线匝， 第二绕线由位于顶层和底层的布线和顶层和底层之间的第三过孔和第四过孔环绕而成；
和 /或， （c )第 1 PCB到第 N PCB的第 1个组成单元的第一线圈的一圈线匝的第一进线与第 1 PCB到第 N PCB的第 1 外部接入点相连， 第 1 PCB到第 N PCB的第 1个组成单元的第二线圈的一圈线匝的第二进线与第 1 PCB到第 N PCB的第 2 外部接入点相连； 第 1 PCB到第 N 1 PCB的最后 1个组成单元的第一线圈的一圈线匝的第一出线与第 1 PCB到第 N 1 PCB 的第 3外部接入点相连， 第 1 PCB到第 N 1 PCB的最后 1个组成单元的第二线圈的一圈线匝的第二出线与第 1 PCB到第 N 1 PCB的第 4外部接入点相连； 第 N PCB的最后 1个组成单元的第一线圈的一圈线匝的第一出线， 与第 N PCB的最后 1个组 成单元的第二线圈的一圈线匝的第二出线直接相连， 实现第一线圈和第二线圈在第 N PCB上的串联；
禾 Π/或， （d)每一个组成单元两圈线匝的绕线围成的截面垂直于 PCB表面，绕线围成的截面位于 PCB的横截面上， 绕线的顶层和底层布线路径在垂直于 PCB表面的方向上重合；
禾 Π/或， （e ) 每一个组成单元的中心均匀分布在待测电流产生的磁场的一条磁力线上， 所有组成单元两圈线匝 的绕线截面方向近似沿通过该绕线截面中心的磁力线法线方向， 所有组成单元两圈线匝的绕线截面和通过该绕线截 面中心的磁力线切线方向近似垂直。
PCT/CN2014/078242 2013-06-18 2014-05-23 一种pcb罗氏线圈 WO2014201937A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/890,906 US10739384B2 (en) 2013-06-18 2014-05-23 PCB Rogowski coil
EP14813582.5A EP3012846B1 (en) 2013-06-18 2014-05-23 Pcb rogowski coil

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN201310239226.2 2013-06-18
CN201310239226.2A CN104237591B (zh) 2013-06-18 2013-06-18 一种抗磁场干扰单块pcb闭合罗氏线圈设计方法与实现
CN201310289012.6A CN104284515B (zh) 2013-07-11 2013-07-11 一种抗磁场干扰多块pcb闭合罗氏线圈设计方法与实现
CN201310289012.6 2013-07-11
CN201310318277.4 2013-07-26
CN201310318279.3A CN104349595B (zh) 2013-07-26 2013-07-26 一种抗磁场干扰两块pcb开口罗氏线圈设计方法与实现
CN201310318279.3 2013-07-26
CN201310318277.4A CN104349594B (zh) 2013-07-26 2013-07-26 一种抗磁场干扰多块pcb开口罗氏线圈设计方法与实现

Publications (1)

Publication Number Publication Date
WO2014201937A1 true WO2014201937A1 (zh) 2014-12-24

Family

ID=52103936

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/078242 WO2014201937A1 (zh) 2013-06-18 2014-05-23 一种pcb罗氏线圈

Country Status (3)

Country Link
US (1) US10739384B2 (zh)
EP (1) EP3012846B1 (zh)
WO (1) WO2014201937A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10859605B2 (en) 2016-06-10 2020-12-08 Analog Devices International Unlimited Company Current sensor and a method of manufacturing a current sensor
EP3748372A1 (en) * 2016-06-10 2020-12-09 Analog Devices Global Unlimited Company A current sensor and a method of manufacturing a current sensor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11501931B2 (en) 2018-07-25 2022-11-15 Hubbell Incorporated Circuit interrupting device having printed circuit board coils
EP4095534B1 (en) 2021-05-27 2024-07-17 Hitachi Energy Ltd Semiconductor assembly, electric power device and method of manufacturing
US11650269B2 (en) 2021-08-25 2023-05-16 Analog Devices International Unlimited Company Split coil arrangement for non-disruptive measurement of axial magnetic flux as part of system to infer machine health
US11927607B2 (en) 2022-03-15 2024-03-12 Analog Devices International Unlimited Company Current sensor
US11959942B2 (en) 2022-03-15 2024-04-16 Analog Devices International Unlimited Company Current sensor
WO2023174662A1 (en) * 2022-03-15 2023-09-21 Analog Devices International Unlimited Company Current sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001057543A1 (en) * 2000-02-03 2001-08-09 Mcgraw-Edison Company High precision rogowski coil
CN101625377A (zh) * 2009-08-14 2010-01-13 河南电力试验研究院 一种高精度开口式罗氏线圈
CN202258626U (zh) * 2011-09-30 2012-05-30 河南电力试验研究院 一种新型的组合型pcb罗氏线圈

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2692074B1 (fr) * 1992-06-05 1994-07-22 Alsthom Gec Bobine de rogowski.
AU4604400A (en) * 1999-05-25 2000-12-12 Arbeitsgemeinschaft Prof. Hugel Agph Electrical current sensor
US6680608B2 (en) * 2002-02-27 2004-01-20 Mcgraw-Edison Company Measuring current through an electrical conductor
US7227442B2 (en) * 2005-04-01 2007-06-05 Schweitzer Engineering Laboratories, Inc. Precision printed circuit board based rogowski coil and method for manufacturing same
JP4674533B2 (ja) * 2005-12-02 2011-04-20 パナソニック電工株式会社 交流電流検出用コイル
US7579824B2 (en) * 2006-09-29 2009-08-25 Gm Global Technology Operations, Inc. High-precision Rogowski current transformer
US7538541B2 (en) * 2006-11-06 2009-05-26 Cooper Technologies Company Split Rogowski coil current measuring device and methods

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001057543A1 (en) * 2000-02-03 2001-08-09 Mcgraw-Edison Company High precision rogowski coil
US6313623B1 (en) 2000-02-03 2001-11-06 Mcgraw-Edison Company High precision rogowski coil
CN101625377A (zh) * 2009-08-14 2010-01-13 河南电力试验研究院 一种高精度开口式罗氏线圈
CN202258626U (zh) * 2011-09-30 2012-05-30 河南电力试验研究院 一种新型的组合型pcb罗氏线圈

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GUILLOD, T. ET AL.: "Design of a PCB Rogowski, Coil based on the PEEC Method.", INTERGRATED POWER ELECTRONICS SYSTEMS (CIPS) 2012 7TH INTERNATIONAL CONFERENCE, 8 March 2012 (2012-03-08), pages 14, XP032181456 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10859605B2 (en) 2016-06-10 2020-12-08 Analog Devices International Unlimited Company Current sensor and a method of manufacturing a current sensor
EP3748372A1 (en) * 2016-06-10 2020-12-09 Analog Devices Global Unlimited Company A current sensor and a method of manufacturing a current sensor

Also Published As

Publication number Publication date
US20160116504A1 (en) 2016-04-28
EP3012846A4 (en) 2017-03-22
EP3012846B1 (en) 2020-01-08
US10739384B2 (en) 2020-08-11
EP3012846A1 (en) 2016-04-27

Similar Documents

Publication Publication Date Title
WO2014201937A1 (zh) 一种pcb罗氏线圈
JP4744495B2 (ja) 改良型高精度ロゴスキー変流器
TWI315074B (en) Electronic transformer/inductor devices and methods for making same
WO2018021691A1 (ko) 다층 피시비 코어 구조를 가지는 전류 검출소자
CN104517941B (zh) 线圈及制备应用于电感元件的线圈的方法
WO2021185012A1 (zh) 一种全耦合磁性元件
JP2014504009A (ja) 集積化したギャップを有する薄膜インダクタ
US11437175B2 (en) Magnetic unit
KR20130063363A (ko) 커먼 모드 노이즈 필터
CN104237591B (zh) 一种抗磁场干扰单块pcb闭合罗氏线圈设计方法与实现
CN201032609Y (zh) 一种高效独立型平面变压器
CN109686540A (zh) 容抗性电压转换装置
CN107464673A (zh) 变压器
CN104284515B (zh) 一种抗磁场干扰多块pcb闭合罗氏线圈设计方法与实现
WO2017197550A1 (zh) 电磁感应器件及其制作方法
JP3057203B2 (ja) プリントコイル形トランス
CN104349594B (zh) 一种抗磁场干扰多块pcb开口罗氏线圈设计方法与实现
CN106158286B (zh) 一种带中心抽头的变压器
CN105895332B (zh) 线圈，电感装置及制备应用于电感装置的线圈的方法
CN104349595B (zh) 一种抗磁场干扰两块pcb开口罗氏线圈设计方法与实现
JP2012182286A (ja) コイル部品
WO2016005526A1 (en) Centre-tapped transformer
JP2012182285A (ja) コイル部品
Wang et al. A class of coupled inductors based on LTCC technology
Duffy et al. MCM-L integrated transformers for low power applications

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14813582

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 14890906

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2014813582

Country of ref document: EP