CN205608061U - Closed -loop hall current sensor - Google Patents
Closed -loop hall current sensor Download PDFInfo
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- CN205608061U CN205608061U CN201521141455.1U CN201521141455U CN205608061U CN 205608061 U CN205608061 U CN 205608061U CN 201521141455 U CN201521141455 U CN 201521141455U CN 205608061 U CN205608061 U CN 205608061U
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Abstract
The utility model discloses a closed -loop hall current sensor, including gathering magnetic ring, secondary coil, hall element, skeleton, circuit board, apron and shell, shell, secondary coil, hall element, skeleton, circuit board, apron are respectively including the two parts that stand separately, gather that the magnetic ring includes the mutual isolation first gather the magnetic ring and the second gathers the magnetic ring, first magnetic ring and the second of gathering gathers the magnetic ring and comprises the mutual seamless meshing of the magnetic core of two separations respectively and form, is provided with discrete magnetic core, secondary coil, hall element, skeleton, circuit board branch in each part shell respectively, the shell of two separations links up constitutes a hall current sensor together, magnetic core in the shell of two separations is in the seamless meshing of shell linking department, the apron that stands separately approximately closes respectively on two discrete shells, the discrete structure of shell makes closed hall current sensor detachable becomes two independent parts, and simple to operate improves the current detection precision.
Description
Technical field
This utility model relates to current sensor, particularly relate to a kind of can the closed-loop Hall current sensor of folding.
Background technology
Sensor is a kind of detection device, the relevant information of tested equipment can be detected, is for conversion into the information output of the signal of telecommunication or other desired forms according to certain rules, to meet the transmission of information, to process, store, show, record and the requirement such as control.Sensor range of application widely, provides the technical support of a kind of indispensability for instrumentation devices.Hall current sensor is a kind of current measuring element that primary current carries out isolation detection that application Hall effect principle is developed, the magnetic field that primary current produces is by collected by magnetism gathering rings, this magnetic field is acquired by the Hall element being placed in magnetism gathering rings, produce the Hall voltage of and magnetic field, former limit equal proportion, by measuring the size of this Hall voltage, so that it may realize the isolation detection to primary current.
Existing Hall current sensor has open loop and closed loop two kinds.Open loop Hall current sensor technique is simple, low cost, mounting means variation, tested electric current is bigger, being easy to produce and application, but accuracy of detection is affected by the interference factor such as external environment and temperature relatively big, stability is bad, operating frequency can only accomplish below 50kHz, cannot normally use in the environment of some high frequency environment and interference source are relatively more.Closed-loop Hall current sensor precision is high, strong interference immunity, good stability, operating frequency can reach 200kHz, but due to the particularity of its principle, mounting means has limitation, it is generally divided into overall through hole and installs and PCB two kinds of forms of installation, it is not easy to user flexibility application, cannot install and use under busbar crosses the special occasions that streamline cable is inconvenient to disassemble.
Therefore, a kind of can conveniently install and current sensor that certainty of measurement is high is problem demanding prompt solution.
Utility model content
This utility model purpose is exactly the problem installing closed-loop Hall current sensor in the case of not disassembling busbar cable for solution.
Technical problem of the present utility model is solved by following technical scheme:
A kind of closed-loop Hall current sensor, including magnetism gathering rings, secondary coil, Hall element, skeleton, circuit board, cover plate and shell, described magnetism gathering rings includes two the first mutually isolated magnetism gathering rings and the second magnetism gathering rings, described skeleton is double-decker, described skeleton is arranged on described first magnetism gathering rings and the second magnetism gathering rings, on described magnetism gathering rings, there is air gap, described Hall element is arranged on described gap position, described secondary coil is looped around on described skeleton, and described circuit board electrically connects with described Hall element, described secondary coil；Described magnetism gathering rings, described secondary coil, described Hall element, described skeleton, described circuit board are arranged in described shell；Described shell, described cover plate include discrete two parts respectively, and described shell is engaged togather by the first discrete shell and second housing and forms entirety；Described first magnetism gathering rings and the second magnetism gathering rings include discrete two parts magnetic core respectively, first magnetic core of described first magnetism gathering rings and the 3rd magnetic core of the second magnetism gathering rings are simultaneously located in described first shell, second magnetic core of described first magnetism gathering rings and the 4th magnetic core of the second magnetism gathering rings are simultaneously located in described second housing, described first magnetic core constitutes described first magnetism gathering rings with described second magnetic core seamless engagement of described joining place of described shell, and described 3rd magnetic core constitutes described second magnetism gathering rings with described 4th magnetic core seamless engagement of described joining place of described shell；Described discrete cover plate covers respectively on described first shell and described second housing.
According to another specific aspect of the present utility model, described secondary coil, described skeleton, described circuit board include discrete two parts respectively, are also respectively provided with described secondary coil, described skeleton, a part for described circuit board in described first shell and described second housing.
According to another specific aspect of the present utility model, described first shell and described second housing arrange seam respectively on the rank face of described joining place, the first magnetic core in described first shell is seamless at described seam with the second magnetic core in second housing to be engaged, the 3rd magnetic core in described first shell is seamless at described seam with the 4th magnetic core in second housing to be engaged, and the first circuit board in described first shell electrically connects at described joining place with the second circuit board in second housing.
According to another specific aspect of the present utility model, the first circuit board in described first shell is electrically connected by connector at described joining place with the second circuit board in described second housing.
According to another specific aspect of the present utility model, described first magnetic core and described second magnetic core are the dentalation cooperated in described seamless engagement place, and described 3rd magnetic core and described 4th magnetic core are the dentalation cooperated in described seamless engagement place.
According to another specific aspect of the present utility model, described first magnetic core to described 4th magnetic core is to form with lamellar stacking riveted, forms dentalation in described seamless engagement place.
According to another specific aspect of the present utility model, described shell is hollow square or circular, the most described first shell and described second housing are described square or circular parts, and described first magnetic core to described 4th magnetic core is square with a described or circular corresponding square or circular part.
According to another specific aspect of the present utility model, what described skeleton was provided with described Hall element inserts hole or/and the locating slot of described air gap.
According to another specific aspect of the present utility model, described first shell is provided with for realizing the positioner that described shell seamless is connected with the joining place of described second housing.
According to another specific aspect of the present utility model, described Hall element is welded on described circuit board with the two ends of described secondary coil, and described circuit board arranges leading foot by connector or cable mode.
According to another specific aspect of the present utility model, described first magnetism gathering rings and described second magnetism gathering rings being respectively arranged with N number of air gap, described air gap is symmetric on magnetism gathering rings, wherein N >=1.
According to another specific aspect of the present utility model, the direction of the leading foot of the described Hall element at described first magnetism gathering rings and the described air gap on described second magnetism gathering rings is mutually perpendicular to.
According to another specific aspect of the present utility model, when the direction of the leading foot of described Hall element is parallel with described circuit board, described Hall element is electrically connected on described circuit board by Hall element keyset.
According to another specific aspect of the present utility model, described magnetism gathering rings is square or circular, and corresponding described magnetic core is half square or semicircle.
This utility model is compared with the prior art and provides the benefit that:
Closed-loop Hall current sensor of the present utility model, change all structural members in existing closed-loop Hall current sensor and need to fix the frame mode of connection, using flexibly can opening-closing structure, casing assembly is divided into two, one independent individual of monolateral formation, locating dowel and buckle by bilateral junction realize both sides slitless connection, without disassembling stream busbar during application, the most convenient.
This utility model combines in open-loop principles can the installation convenience of folding product and the good characteristic of closed loop principle product, achieve the simple and direct and lifting of precision during application, the sampling precision of product can be met, installation and the debugging of product can be facilitated again so that the application limitation of closed loop principle product gets a promotion.
Accompanying drawing explanation
Fig. 1, Fig. 1 a is the structural representation of this utility model detailed description of the invention one；
Fig. 2, Fig. 2 a is the structural representation of this utility model detailed description of the invention two；
Fig. 3, Fig. 3 a is the structural representation of this utility model detailed description of the invention three；
Fig. 4 is the structural representation of this utility model detailed description of the invention four；
Fig. 5 is the structural representation of this utility model detailed description of the invention five；
Fig. 6 is the structural representation of this utility model detailed description of the invention six；
Fig. 7, Fig. 8 are the structural representations of this utility model detailed description of the invention seven；
Fig. 9 is the structural representation of this utility model detailed description of the invention eight；
Figure 10,10a are the structural representations of this utility model detailed description of the invention nine.
Detailed description of the invention
Detailed description of the invention one
nullA kind of closed-loop Hall current sensor 10 such as Fig. 1、Shown in Fig. 1 a，Including magnetism gathering rings、Secondary coil 3、Hall element 4 and circuit controller 5，Described magnetism gathering rings includes two discrete magnetic cores 1 and magnetic core 2，Magnetic core 1 and magnetic core 2 are respectively provided with two terminations，Each termination is designed as dentalation，The dentalation of magnetic core 1 end matches with the dentalation of magnetic core 2 end，As shown in Figure 1a，Magnetic core 1 seamless engage mutual with at magnetic core 2 two ends forms the magnetism gathering rings closed，Magnetic core 1 is respectively a part for magnetism gathering rings with magnetic core 2，On magnetic core 2, there is air gap，It is not provided with air gap on magnetic core 1，Hall element 4 is arranged on the gap position on magnetic core 2，Secondary coil 3 is looped around on magnetic core 2，Circuit controller 5 and described secondary coil 3、Described Hall element 4 electrically connects，And the signal collecting Hall element processes；Wherein Fig. 1 a is the side view of magnetism gathering rings structure in Fig. 1.
The end portion that magnetic core 1 is meshed with magnetic core 2 can also be the distressed structure of dentalation, or can any one curved-surface structure of mutual seamless combination.
When needing the current intensity detecting tested cable, magnetic core 1 is separated with magnetic core 2, magnetic core 1 and magnetic core 2 it is respectively put into from the both sides of tested cable, magnetic core 1 is mutual with the tooth-like part of anything of magnetic core 2 seamless to be engaged, now magnetic core 1 and magnetic core 2 constitute the magnetism gathering rings of Guan Bi, and magnetism gathering rings, secondary coil 3, Hall element 4 and circuit controller 5 form closed-loop Hall current sensor.
Magnetic core 1 is formed by high magnetic conduction flaky material stacking riveted with magnetic core 2, and when stacking riveted, the two ends stacking at magnetic core 1 with magnetic core 2 forms dentalation, and the seamless engagement of dentation of the corresponding tip position of two magnetic cores forms the magnetism gathering rings of Guan Bi.
Air gap on magnetic core 2 is arranged on the centre position of magnetic core 2, or is arranged on the optional position of magnetic core 2.
Magnetic core 1 and magnetic core 2 can be respectively half square or half circular configuration, and two magnetic cores form hollow square or circular magnetism gathering rings after combining.
Magnetic core 1 is the sub-fraction of square hollow or circle, and magnetic core 2 is most of square hollow or circle, and two magnetic cores the most also can form the square or magnetism gathering rings of circular configuration after combining.
Magnetism gathering rings can also be the closed shape that the centre of an arbitrary structures has through hole, and magnetic core 1 and magnetic core 2 are the ingredients of this closed shape.
Detailed description of the invention two
A kind of closed-loop Hall current sensor 20 such as Fig. 2, shown in Fig. 2 a, including magnetism gathering rings, secondary coil 3 and 7, Hall element 4 and 6, and circuit controller 5, described magnetism gathering rings includes two discrete magnetic cores 1 and magnetic core 2, magnetic core 1 and magnetic core 2 are respectively provided with two terminations, each termination is designed as dentalation, the dentalation of magnetic core 1 end matches with the dentalation of magnetic core 2 end, as shown in Figure 2 a, at two ends, mutual seamless engagement forms the magnetism gathering rings of Guan Bi, magnetic core 1 is respectively a part for magnetism gathering rings with magnetic core 2, it is respectively provided with air gap on magnetic core 1 and magnetic core 2；Hall element 4 is arranged on the gap position on magnetic core 2, and secondary coil 3 is looped around on magnetic core 2；Hall element 6 is arranged on the gap position on magnetic core 1, secondary coil 7 is looped around on magnetic core 1, Hall element 4 and Hall element 6 are symmetrical on magnetism gathering rings, circuit controller 5 electrically connects with described secondary coil 3 and 7, described Hall element 4 and 6 respectively, and the signal collecting Hall element processes；Secondary coil 7 and Hall element 6 are connected to circuit controller 5 after being electrically connected with secondary coil 3 by connector 8, and wherein Fig. 2 a is the side view of magnetism gathering rings structure in Fig. 2.
Or, the end portion that magnetic core 1 is meshed with magnetic core 2 is the distressed structure of dentalation, or can any one curved-surface structure of mutual seamless combination.
When needing the current intensity detecting tested cable, magnetic core 1 is separated with magnetic core 2, magnetic core 1 and magnetic core 2 it is respectively put into from the both sides of tested cable, magnetic core 1 is mutual with the tooth-like part of anything of the termination of magnetic core 2 seamless to be engaged, now magnetic core 1 and magnetic core 2 constitute the magnetism gathering rings of Guan Bi, and magnetism gathering rings, secondary coil 3 and 7, Hall element 4 and 6 and circuit controller 5 form the double Hall current sensor of closed loop.
Magnetic core 1 and the air gap on magnetic core 2 are arranged on the centre position of magnetic core 1 and magnetic core 2, or are arranged on the optional position of magnetic core 1 and magnetic core 2, and its air gap is symmetrical on magnetism gathering rings.
Magnetic core 1 can be set to N number of with the air gap on magnetic core 2, and now the air gap on magnetism gathering rings is exactly 2N, and 2N air gap is symmetrically distributed on magnetism gathering rings, wherein N >=1；The quantity of Hall element is equal to air gap number.
Magnetic core 1 and magnetic core 2 can be respectively half square or half circular configuration, and two magnetic cores form hollow square or circular magnetism gathering rings after combining.
Magnetic core 1 is square or circular sub-fraction, and magnetic core 2 is square or circular most, and two magnetic cores form hollow square or circular magnetism gathering rings after combining.
Magnetism gathering rings can also be the closed shape that the centre of an arbitrary structures has through hole, and magnetic core 1 and magnetic core 2 are two ingredients of this closed shape.
Detailed description of the invention three
A kind of closed-loop Hall current sensor 30 such as Fig. 3, shown in Fig. 3 a, including magnetism gathering rings, secondary coil 3 and 7, Hall element 4 and 6, and circuit controller 5, described magnetism gathering rings includes the first mutually isolated magnetism gathering rings and the second magnetism gathering rings, described first magnetism gathering rings includes two discrete magnetic cores 101 and magnetic core 102, magnetic core 101 and magnetic core 102 are respectively provided with two terminations, each end is dentalation, the dentalation of magnetic core 101 end matches with the dentalation of magnetic core 102 end, at two ends, mutual seamless engagement forms the first magnetism gathering rings of Guan Bi, on first magnetism gathering rings, there is air gap；Described second magnetism gathering rings includes two discrete magnetic cores 201 and magnetic core 202, magnetic core 201 and magnetic core 202 are respectively provided with two terminations, each end is dentalation, the dentalation of magnetic core 201 end matches with the dentalation of magnetic core 202 end, at two ends, mutual seamless engagement forms the second magnetism gathering rings of Guan Bi, on second magnetism gathering rings, there is air gap, as shown in Figure 3 a；Hall element 4 is arranged on the gap position on the magnetic core 202 of the second magnetism gathering rings, and secondary coil 3 is looped around on magnetic core 102 and magnetic core 202 simultaneously；Hall element 6 is arranged on the gap position on the magnetic core 101 of the first magnetism gathering rings, secondary coil 7 is looped around on magnetic core 101 and magnetic core 201 simultaneously, Hall element 4 and Hall element 6 are symmetrical on magnetism gathering rings, circuit controller 5 electrically connects with described secondary coil 3 and 7, described Hall element 4 and 6 respectively, and the signal collecting Hall element processes；Secondary coil 7 and Hall element 6 are connected to circuit controller 5 after being electrically connected with secondary coil 3 by connector 8, and wherein Fig. 3 a is the side view of magnetism gathering rings structure in Fig. 3.
Or, the end portion that end portion that magnetic core 101 is meshed with magnetic core 102, magnetic core 201 are meshed with magnetic core 202 is the distressed structure of dentalation, or can any one curved-surface structure of mutual seamless combination.
When needing the current intensity detecting tested cable, by magnetic core 101, 201 with magnetic core 102, 202 separately, it is respectively put into magnetic core 101 from the both sides of tested cable, 201 with magnetic core 102, 202, magnetic core 101 is mutual with the tooth-like part of anything of the termination of magnetic core 102 seamless to be engaged, magnetic core 201 is mutual with the tooth-like part of anything of the termination of magnetic core 202 seamless to be engaged, magnetic core 101 constitutes the first magnetism gathering rings of Guan Bi with magnetic core 102, magnetic core 201 constitutes the second magnetism gathering rings of Guan Bi with magnetic core 202, magnetism gathering rings, secondary coil 3 and 7, Hall element 4 and 6 and circuit controller 5 form the double Hall closed-loop current sensors of dicyclo.
Magnetic core 101 and the air gap on magnetic core 202 are arranged on the centre position of magnetic core 101 and magnetic core 202, or are arranged on the optional position of magnetic core 101 and magnetic core 202, or are arranged on the optional position of magnetic core 102 and magnetic core 201, and its air gap is symmetrical on magnetism gathering rings.
Air gap number on magnetism gathering rings is 2N, and 2N air gap is symmetrically distributed on magnetism gathering rings, wherein N >=1；Being distributed N number of air gap on each magnetism gathering rings, the quantity of Hall element is equal to air gap number.
Detailed description of the invention four
As shown in Figure 4, closed-loop Hall current sensor 40 is the closed-loop current sensors of the double Hall of a kind of monocycle to a kind of closed-loop Hall current sensor 40, including shell, magnetism gathering rings, circuit board, skeleton, secondary coil, cover plate；Described shell includes shell 1 and shell 2 two parts, described magnetism gathering rings includes magnetic core 4 and magnetic core 9 two parts, described circuit board includes circuit board 11 and circuit board 12, described skeleton includes skeleton 6 and skeleton 7, described secondary coil includes secondary coil 3 and secondary coil 5, and described cover plate includes cover plate 13 and cover plate 14.
Being provided with magnetic core 9, skeleton 6, secondary coil 3, circuit board 12 in shell 1, secondary coil 3 is looped around on skeleton 6, and skeleton 6 is arranged on magnetic core 9, and circuit board 12 is provided with Hall element 10, and cover plate 14 covers on shell 1；Magnetic core 4, skeleton 7, secondary coil 5, circuit board 11 it is provided with in shell 2, secondary coil 5 is looped around on skeleton 7, skeleton 7 is arranged on magnetic core 4, Hall element 8 it is provided with on circuit board 11, cover plate 13 covers on shell 2, for the needs illustrated in Fig. 4, magnetic core 4, skeleton 7, secondary coil 5 are separately drawn, by magnetic core 9, skeleton 6, secondary coil 3 with the result diagram after installing.
Relevant position on skeleton 6 and secondary coil 3 is provided with hole 19, Hall element location, and the Hall element 10 on battery lead plate 12 is arranged in hole 19, location；Same, the relevant position on skeleton 7 and secondary coil 5 is provided with hole 20, Hall element location, and the Hall element 8 on battery lead plate 11 is arranged in hole 20, location.
Shell is square hollow structure, and shell 1 and shell 2 are a part for described square hollow structure, and shell 1 and shell 2 are symmetrical in the present embodiment, but are not limited to this；Shell 1 and shell 2 seamless connection, be provided with seam on the shell 1 interface with shell 2 joining place, as shown in shell 2 seam 21, also is provided with seam equally, is not drawn in Fig. 1 on two interfaces of shell 1 with another interface of shell 2；Joining place at shell 1 with shell 2 is additionally provided with fixing hole, and the fixing hole 15 of shell 1 as shown in Figure 1, the fixing hole 16 of shell 2, quantity and the position of fixing hole are arranged as required to, and are not limited to two fixing holes.
Magnetism gathering rings is the square hollow structure similar to shell, magnetic core 4 is respectively a part for described square hollow structure with magnetic core 9, magnetic core 4 and magnetic core 9 are the half of described square hollow structure respectively in the present embodiment, magnetic core 4 and magnetic core 9 are respectively provided with two terminations, the structure of each end is dentalation, the dentalation of one end of magnetic core 4 cooperates with the dentalation of magnetic core 9 one end and seamless engages, the dentalation of another end of magnetic core 4 cooperates with the dentalation of another end of magnetic core 9 and seamless engages, the position that magnetic core 4 is seamless with magnetic core 9 to be engaged is positioned at the seam of shell 1 and shell 2；Being provided with air gap on magnetic core 4, its position is corresponding with the hole, location 20 on skeleton 7；It is provided with air gap on magnetic core 9, its position is corresponding with the hole, location 19 on skeleton 6, described air gap is symmetric on magnetism gathering rings, the location hole 20 corresponding with gap position is symmetric on magnetism gathering rings with hole 19, location, air gap described in the present embodiment is separately positioned on the centre position of magnetic core 4,9, but is not limited to this.
Circuit board 12 is respectively a part for the described square hollow structure similar to magnetic core 9 to magnetic core 4 with circuit board 11, Hall element 10, connector 17 and related circuit it is provided with on circuit board 12, connector 17 is arranged on the tip position of circuit board 12, the two ends of secondary coil 3 is welded on the circuit board 12, Hall element 8, connector 18 and related circuit it is provided with on circuit board 11, connector 18 is arranged on the tip position of circuit board 11, and the two ends of secondary coil 5 is welded on circuit board 11；The position of Hall element 8 is corresponding with the hole, location 20 on skeleton 7, and the position of Hall element 10 is corresponding with the hole, location 19 on skeleton 6；Connector 17 and connector 18 match, electrical connection circuit plate 12 and circuit board 11 when shell is installed；Circuit board 11,12 arranges leading foot by connector or cable mode.
Or, shell is hollow circular configuration, or hollow any circulus.
Detailed description of the invention five
A kind of closed-loop Hall current sensor 50 is as shown in Figure 5, closed-loop Hall current sensor 50 is the closed-loop current sensors of a kind of monocycle list Hall, it is with the difference of closed-loop Hall current sensor 40, only an air gap is set on magnetic core 4, and on magnetic core 9, it is not provided with air gap, also it is not provided with skeleton and secondary coil on corresponding magnetic core 9, in shell 1, is also not provided with circuit board, namely only one of which air gap, circuit board, skeleton and secondary coil.
The closed-loop current sensors of above monocycle list Hall includes monoskeleton, single secondary coil, single circuit plate.
Or, as required, the closed-loop current sensors of monocycle list Hall can also be respectively provided with skeleton and secondary coil on magnetic core 4 with magnetic core 9, is respectively provided with circuit board in shell 1 with shell 2.
Detailed description of the invention six
nullOne of frame mode of magnetism gathering rings 60 is as shown in Figure 6，The square hollow structure that magnetism gathering rings 60 is made up of magnetic core 4 and magnetic core 9，Magnetic core 4 and magnetic core 9 are respectively a portion of square hollow structure，Magnetic core 4 has two terminations 23、25，Each end is dentalation，In the centre position of magnetic core 4, air gap 27 is set，Magnetic core 9 has two terminations 24、26，Each end is dentalation，In the centre position of magnetic core 9, air gap 28 is set，The dentalation of termination 23 matches with the dentalation of termination 24，The dentalation of termination 25 matches with the dentalation of termination 26，When magnetic core 4 is connected with magnetic core 9，The dentalation of termination 23 and the dentalation seamless connection of termination 24，The dentalation of termination 25 and the dentalation seamless connection of termination 26，Magnetic core 4 and magnetic core 9 seamless connection are magnetism gathering rings 60.
Or, the air gap number of magnetism gathering rings is one, is disposed therein on a magnetic core；Or the integral multiple that air gap number is 2 of magnetism gathering rings, is separately positioned on two magnetic cores, and now, the air gap of magnetism gathering rings is symmetric on magnetism gathering rings.
Detailed description of the invention seven
nullThe external structure of a kind of closed-loop Hall current sensor such as Fig. 7、Shown in Fig. 8，Fig. 7 is the structure 70 during closed-loop Hall current sensor folding，Fig. 8 is the structure 80 during closed-loop Hall current sensor Guan Bi，Closed-loop Hall current sensor includes discrete shell 1 assembly and shell 2 assembly，Shell 1 and shell 2 form square hollow structure，Shell 1 assembly and shell 2 assembly include shell respectively、Magnetic core、Circuit board、Skeleton、Secondary coil、Cover plate，The dentalation 23 of the end of the magnetic core in shell 1 assembly、25 seams protruding from shell 1 joining place，The dentalation 24 of the end of the magnetic core in shell 2 assembly、26 seams protruding from shell 2 joining place，Shell 1 assembly and shell 2 assembly hole, location 15 by joining place、16 and 27、28 realize seamless connection，Dentalation 23、24 and 25、26 also realize seamless connection at seam.
Detailed description of the invention eight
A kind of closed-loop Hall current sensor 90 is as it is shown in figure 9, closed-loop Hall current sensor 90 is the closed-loop current sensors of a kind of dicyclo pair Halls, including shell, magnetism gathering rings, circuit board, skeleton, secondary coil, cover plate；Described shell includes shell 17 and shell 18 two parts, described magnetism gathering rings includes the first magnetism gathering rings and the second magnetism gathering rings, described first magnetism gathering rings includes magnetic core 1a and magnetic core 1b two parts, described second magnetism gathering rings includes magnetic core 2a and magnetic core 2b two parts, described circuit board includes circuit board 21 and circuit board 22, described skeleton includes skeleton 19 and skeleton 20, and described secondary coil includes secondary coil 3 and secondary coil 7, and described cover plate includes cover plate 23 and cover plate 24 two parts.
Magnetic core 1a and 2a, skeleton 19, secondary coil 7, circuit board 21 it is provided with in shell 17, secondary coil 7 is looped around on skeleton 19, skeleton 19 is arranged on magnetic core 1a and 2a, the insertion hole of Hall element it is provided with at the air gap of skeleton 19, it is provided with Hall element 6 at described insertion hole, being provided with connector 8a in the tip position of circuit board 21, cover plate 23 covers on shell 1；Magnetic core 1b and 2b, skeleton 20, secondary coil 3, circuit board 22 it is provided with in shell 18, secondary coil 3 is looped around on skeleton 20, skeleton 7 is arranged on magnetic core 1b and 2b, the insertion hole of Hall element it is provided with at the air gap of skeleton 20, it is provided with Hall element 4 at described insertion hole, being provided with connector 8b in circuit board 21 tip position, cover plate 24 covers on shell 18, and connector 8a Yu 8b cooperates and electrical connection circuit plate 21 and 22；For the needs illustrated in Fig. 9, magnetic core 1b and 2b, skeleton 20, secondary coil 3 are separately drawn, by magnetic core 1a and 2a, skeleton 19 with the result diagram after installing.
Being provided with air gap on the first magnetism gathering rings, its position is corresponding with the insertion hole of the Hall element on skeleton 19；Being provided with air gap on second magnetism gathering rings, its position is corresponding with the insertion hole of the Hall element on skeleton 20, and the gap position on the first magnetism gathering rings and the second magnetism gathering rings is symmetric at magnetism gathering rings.Hall element 6 is placed at the air gap of the first magnetism gathering rings, and Hall element 4 is placed at the air gap of the second magnetism gathering rings, and Hall element 6 is mutually perpendicular to the leading foot direction of Hall element 4, skeleton 19,20 is additionally provided with the locating slot of described air gap, is not drawn in figure.
Shell is hollow square structure, and shell 17 and shell 18 are a part for square hollow structure, and shell 17 and shell 18 are symmetrical in the present embodiment, but are not limited to this；Shell 17 and shell 18 seamless connection, be provided with seam on the shell 17 interface with shell 18 joining place, and the interface of shell 18 joining place is provided with seam 25,26, and shell 17 also is provided with seam in corresponding position, is not drawn in figure；Joining place at shell 17 with shell 18 is respectively equipped with fixing hole 27,28, and the quantity of fixing hole is arranged as required to position.
Magnetism gathering rings is the square hollow structure similar to shell, magnetic core 1a and 2a, magnetic core 1b and 2b is respectively a part for square hollow structure, magnetic core 1a and 2a in the present embodiment, magnetic core 1b and 2b is the half of square hollow structure respectively, magnetic core 1a and 2a, magnetic core 1b and 2b is respectively provided with two terminations, the structure of each end is dentalation, the dentalation of one end of magnetic core 1a cooperates with the dentalation of magnetic core 1b mono-end and seamless engages, the dentalation of another end of magnetic core 1a cooperates with the dentalation of another end of magnetic core 1b and seamless engages, same, dentalation at the two ends of magnetic core 2a and magnetic core 2b cooperates and seamless engagement；Magnetic core 1a and 2a, the position of magnetic core 1b and 2b is seamless engagement are positioned at the seam of shell 17,18.
Skeleton 19,20 is internal is double-decker, for isolating the first magnetism gathering rings and the second magnetism gathering rings, the magnetic core 1a of the first magnetism gathering rings and the magnetic core 2a of the second magnetism gathering rings is separately positioned on each layer of skeleton 19, secondary coil 7 is looped around on magnetic core 1a and magnetic core 2a simultaneously, the magnetic core 1b of the first magnetism gathering rings and the magnetic core 2b of the second magnetism gathering rings is separately positioned on each layer of skeleton 20, and secondary coil 3 is looped around on magnetic core 1b and magnetic core 2b simultaneously.
Secondary coil 3 and Hall element 4 electrical connection circuit plate 22, secondary coil 7 and Hall element 6 electrical connection circuit plate 21, circuit board 21,22 arranges leading foot by connector or cable mode.
Detailed description of the invention nine
Electric connection mode 100 as concrete in the one of the closed-loop Hall current sensor that Figure 10, Figure 10 a is detailed description of the invention eight, wherein Figure 10 is the top view of electrical connection, the right view of Figure 10 a electrical connection.
Connector 8a on circuit board 21 matches with the connector 8b on circuit board 22, and electrical connection circuit plate 21 and circuit board 22, forms magnetism gathering rings 1, form magnetism gathering rings 2 after magnetic core 2a and the seamless engagement of magnetic core 2b after magnetic core 1a and the seamless engagement of magnetic core 1b；Magnetism gathering rings 1 is positioned at the front of circuit board 21,22, and the direction of the leading foot of the Hall element 6 at magnetism gathering rings 1 air gap is perpendicular to circuit board 21, and the leading foot of Hall element 6 is directly connected on circuit board 21；Magnetism gathering rings 2 is positioned at the front of magnetism gathering rings 1, and because of the existence of magnetism gathering rings 1, the leading foot of the Hall element 4 at magnetism gathering rings 2 air gap is oriented parallel to circuit board 22, and the leading foot of Hall element 4 is connected on Hall keyset 25, and Hall keyset 25 connects circuit board 22.
Hall keyset 25 is the one in flexible circuit board or pcb board.
Above content is to combine concrete/preferred embodiment further detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations.For this utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; these embodiments having described that can also be made some replacements or modification by it, and these substitute or variant all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. a closed-loop Hall current sensor, including magnetism gathering rings, secondary coil, Hall element, skeleton, circuit board, cover plate and shell, described magnetism gathering rings includes two the first mutually isolated magnetism gathering rings and the second magnetism gathering rings, described skeleton is double-decker, described skeleton is arranged on described first magnetism gathering rings and the second magnetism gathering rings, on described magnetism gathering rings, there is air gap, described Hall element is arranged on described gap position, described secondary coil is looped around on described skeleton, and described circuit board electrically connects with described Hall element, described secondary coil；Described magnetism gathering rings, described secondary coil, described Hall element, described skeleton, described circuit board are arranged in described shell；
It is characterized in that: described shell, described cover plate include that discrete two parts, described shell include that the first discrete shell and second housing are engaged togather and form entirety respectively；
Described first magnetism gathering rings and the second magnetism gathering rings include discrete two parts magnetic core respectively, first magnetic core of described first magnetism gathering rings and the 3rd magnetic core of the second magnetism gathering rings are simultaneously located in described first shell, second magnetic core of described first magnetism gathering rings and the 4th magnetic core of the second magnetism gathering rings are simultaneously located in described second housing, described first magnetic core constitutes described first magnetism gathering rings with described second magnetic core seamless engagement of described joining place of described shell, and described 3rd magnetic core constitutes described second magnetism gathering rings with described 4th magnetic core seamless engagement of described joining place of described shell；
Described discrete cover plate covers respectively on described first shell and described second housing.
Closed-loop Hall current sensor the most according to claim 1, it is characterised in that:
Described secondary coil, described skeleton, described circuit board include discrete two parts respectively, are also respectively provided with described secondary coil, described skeleton, a part for described circuit board in described first shell and described second housing.
Closed-loop Hall current sensor the most according to claim 2, it is characterised in that:
Described first shell and described second housing arrange seam respectively on the rank face of described joining place, the first magnetic core in described first shell is seamless at described seam with the second magnetic core in second housing to be engaged, the 3rd magnetic core in described first shell is seamless at described seam with the 4th magnetic core in second housing to be engaged, and the first circuit board in described first shell electrically connects at described joining place with the second circuit board in second housing.
Closed-loop Hall current sensor the most according to claim 1, it is characterised in that: described first magnetic core to described 4th magnetic core is to form with lamellar stacking riveted, forms dentalation in described seamless engagement place.
Closed-loop Hall current sensor the most according to claim 1, it is characterized in that: described shell is hollow square or circular, the most described first shell and described second housing are described square or circular parts, and described first magnetic core to described 4th magnetic core is square with a described or circular corresponding square or circular part.
Closed-loop Hall current sensor the most according to claim 1, it is characterised in that: be provided with described Hall element on described skeleton inserts hole or/and the locating slot of described air gap.
Closed-loop Hall current sensor the most according to claim 1, it is characterised in that: described first shell is provided with for realizing the positioner that described shell seamless is connected with the joining place of described second housing.
Closed-loop Hall current sensor the most according to claim 1, it is characterised in that: described Hall element is welded on described circuit board with the two ends of described secondary coil, and described circuit board arranges leading foot by connector or cable mode.
Closed-loop Hall current sensor the most according to claim 1, it is characterised in that: being respectively arranged with N number of air gap on described first magnetism gathering rings and described second magnetism gathering rings, described air gap is symmetric on magnetism gathering rings, wherein N >=1.
Closed-loop Hall current sensor the most according to claim 1, it is characterised in that: described Hall element is electrically connected on described circuit board by Hall element keyset.
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| CN201521141455.1U CN205608061U (en) | 2015-12-31 | 2015-12-31 | Closed -loop hall current sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675950A (en) * | 2015-12-31 | 2016-06-15 | 深圳青铜剑科技股份有限公司 | Closed loop Hall current sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675950A (en) * | 2015-12-31 | 2016-06-15 | 深圳青铜剑科技股份有限公司 | Closed loop Hall current sensor |
| CN105675950B (en) * | 2015-12-31 | 2019-08-16 | 深圳青铜剑科技股份有限公司 | A kind of closed-loop Hall current sensor |
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Effective date of registration: 20191023 Address after: 518000 Room 201, building B, shenfubao modern optical factory, No. 14, Jinxiu Middle Road, xiuxin community, Kengzi street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen bronze sword Technology Co., Ltd. Address before: 518057 Guangdong province Shenzhen city Nanshan District high tech park, North Song Ping Road No. 1 Lite Technology Building South 11 floor Patentee before: SHENZHEN BRONZE TECHNOLOGIES LTD. |
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