CN205992012U - A kind of closed-loop Hall current sensor - Google Patents
A kind of closed-loop Hall current sensor Download PDFInfo
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- CN205992012U CN205992012U CN201521140950.0U CN201521140950U CN205992012U CN 205992012 U CN205992012 U CN 205992012U CN 201521140950 U CN201521140950 U CN 201521140950U CN 205992012 U CN205992012 U CN 205992012U
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Abstract
The utility model discloses a kind of closed-loop Hall current sensor, described closed-loop Hall current sensor includes magnetism gathering rings, secondary coil, Hall element and circuit controller, described magnetism gathering rings include two discrete magnetic cores, each magnetic core has two terminations, two described magnetic core mutually seamless engagements at two ends form the magnetism gathering rings of closure, and the end portion that described magnetic core is meshed is curved-surface structure；Described air gap is arranged in described magnetic core；The separate structure of described magnetism gathering rings, makes described closed-loop Hall current sensor can be separated into two parts, convenient installation in the case of not disassembling busbar cable, and closed-loop structure also can improve current detection accuracy simultaneously.
Description
Technical field
This utility model is related to current sensor, more particularly to a kind of closed-loop Hall current sensor.
Background technology
Sensor is a kind of detection means, the relevant information of tested equipment can be detected, is for conversion into electricity according to certain rules
Signal or the information output of other desired forms, will to meet transmission, process, storage, display, record and control of information etc.
Ask.Sensor application scope widely, provides a kind of indispensable technical support for instrumentation devices.Hall current sensor
It is a kind of current measuring element that primary current is carried out with isolation detection that application Hall effect principle is developed, primary current produces
Collected by magnetism gathering rings, the Hall element being placed in magnetism gathering rings is acquired to this magnetic field in raw magnetic field, produces one and former limit
The Hall voltage of magnetic field 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 two kinds of closed loop.Open loop Hall current sensor process is simple, cost
Low, mounting means variation, tested electric current is larger, is easy to produce and applies, but accuracy of detection is done by external environment and temperature etc.
The impact disturbing factor is larger, and stability is bad, and operating frequency can only accomplish below 50kHz, some high frequency environment and interference source ratio
Cannot normally use under more environment.Closed-loop Hall current sensor high precision, strong interference immunity, good stability, work frequency
Rate can reach 200kHz, but the particularity due to its principle, and mounting means has limitation, be generally divided into overall through hole install and
PCB installs two kinds of forms, is not easy to user flexibility application, is inconvenient to cannot pacify under the special occasions disassembled in busbar excessively stream cable
Dress uses.
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 to be to solve to install closed loop Hall current sensing in the case of not disassembling busbar cable
The problem of device.
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 and circuit controller, described
Air gap is had on magnetism gathering rings, described Hall element is arranged on the described gap position on described magnetism gathering rings, described secondary wire ring
Be wound on described magnetism gathering rings, described circuit controller electrically connect with described secondary coil, described Hall element it is characterised in that：
Described magnetism gathering rings include two discrete magnetic cores, and each magnetic core includes two terminations, and two described magnetic cores are mutual at two ends
Seamless engagement forms the magnetism gathering rings of closure, and the end portion that described magnetic core is meshed is curved-surface structure；Described air gap is arranged on institute
State in magnetic core.
According to another specific aspect of the present utility model, the end portion that described magnetic core is meshed is the tooth cooperating
Shape structure.
According to another specific aspect of the present utility model, described magnetic core is to be formed with lamellar stacking riveted, in described magnetic
The dentalation that the end portion formation that core is meshed cooperates.
According to another specific aspect of the present utility model, described air gap is disposed therein the centre position of a magnetic core.
According to another specific aspect of the present utility model, described secondary coil is looped around on the magnetic core with air gap, or
It is looped around on two magnetic cores and electrically connect.
According to another specific aspect of the present utility model, described air gap is separately positioned on two magnetic cores, and in poly- magnetic
It is symmetric on ring.
According to another specific aspect of the present utility model, the quantity of described Hall element is equal to the number of air gap on magnetism gathering rings
Amount.
According to another specific aspect of the present utility model, described secondary coil is looped around respectively on two magnetic cores and is electrically connected
Connect.
According to another specific aspect of the present utility model, described magnetism gathering rings are hollow square or circular, corresponding institutes
Stating magnetic core is a described square or circular part.
According to another specific aspect of the present utility model, described magnetism gathering rings include two the first mutually isolated magnetism gathering rings
With the second magnetism gathering rings.
According to another specific aspect of the present utility model, described first magnetism gathering rings and described second magnetism gathering rings have respectively
There is an air gap, described air gap is symmetrically distributed on described magnetism gathering rings.
The beneficial effect that this utility model is compared with the prior art is：
Closed-loop Hall current sensor of the present utility model, magnetism gathering rings are formed by the seamless engagement of two discrete magnetic cores,
Do not disassemble convenient installation in the case of busbar cable, and because adopting closed-loop structure, closed-loop Hall current sensor can be reached
Precision, the advantage combining traditional open loop Hall current sensor and closed-loop Hall current sensor, precision easy for installation
High.
Brief description
Fig. 1, Fig. 1 a is the structural representation of this utility model specific embodiment one；
Fig. 2, Fig. 2 a is the structural representation of this utility model specific embodiment two；
Fig. 3, Fig. 3 a is the structural representation of this utility model specific embodiment three；
Fig. 4 is the structural representation of this utility model specific embodiment four；
Fig. 5 is the structural representation of this utility model specific embodiment five；
Fig. 6 is the structural representation of this utility model specific embodiment six；
Fig. 7, Fig. 8 are the structural representations of this utility model specific embodiment seven；
Fig. 9 is the structural representation of this utility model specific embodiment eight；
Figure 10,10a are the structural representations of this utility model specific embodiment nine.
Specific embodiment
Specific embodiment one
A kind of closed-loop Hall current sensor 10 as shown in Fig. 1, Fig. 1 a, including magnetism gathering rings, secondary coil 3, Hall element 4
With circuit controller 5, described magnetism gathering rings include two discrete magnetic cores 1 and magnetic core 2, and magnetic core 1 and magnetic core 2 are respectively provided with two ends
Head, each termination is designed as dentalation, and the dentalation of magnetic core 1 end is matched with the dentalation of magnetic core 2 end,
As shown in Figure 1a, magnetic core 1 is mutually seamless with magnetic core 2 two ends engages the magnetism gathering rings forming closure, and magnetic core 1 is with magnetic core 2 respectively
For a part for magnetism gathering rings, magnetic core 2 has air gap, magnetic core 1 is not provided with air gap, Hall element 4 is arranged on the gas on magnetic core 2
Gap position, secondary coil 3 is looped around on magnetic core 2, and circuit controller 5 is electrically connected with described secondary coil 3, described Hall element 4,
And the signal that Hall element collects is processed；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 mutually no
Any one curved-surface structure that seam combines.
In the current intensity needing to detect tested cable, magnetic core 1 is separated with magnetic core 2, divide from the both sides of tested cable
Do not put into magnetic core 1 and magnetic core 2, magnetic core 1 is mutually seamless with the tooth-like part of anything of magnetic core 2 to be engaged, now magnetic core 1 is constituted with magnetic core 2 and closes
The magnetism gathering rings closing, magnetism gathering rings, secondary coil 3, Hall element 4 and circuit controller 5 composition closed-loop Hall current sensor.
Magnetic core 1 is formed by high magnetic conduction flaky material stacking riveted with magnetic core 2, when stacking riveted, in magnetic core 1 and magnetic core 2
Two ends stacking form dentalation, engagement that the dentation of the corresponding tip position of two magnetic cores is seamless forms the magnetism gathering rings of closure.
Air gap on magnetic core 2 is arranged on the centre position of magnetic core 2, or the optional position being arranged on magnetic core 2.
Magnetic core 1 and magnetic core 2 can be respectively half square or half circular configuration, two magnetic cores combine rear formed hollow square
Or circle magnetism gathering rings.
Magnetic core 1 is the sub-fraction of square hollow or circle, and magnetic core 2 is most of square hollow or circle, two magnetic
Core equally also can form square or circular configuration magnetism gathering rings with reference to rear.
Magnetism gathering rings can also be that the centre of arbitrary structures has the closed shape of through hole, and magnetic core 1 and magnetic core 2 are that this closes
Fit ingredient.
Specific embodiment two
A kind of closed-loop Hall current sensor 20 is as shown in Fig. 2, Fig. 2 a, first including magnetism gathering rings, secondary coil 3 and 7, Hall
Part 4 and 6 and circuit controller 5, described magnetism gathering rings include two discrete magnetic cores 1 and magnetic core 2, and magnetic core 1 and magnetic core 2 are respectively
There are two terminations, each termination is designed as dentalation, the dentation of the dentalation of magnetic core 1 end and magnetic core 2 end
Structure matches, and as shown in Figure 2 a, mutually seamless engagement at two ends forms the magnetism gathering rings of closure, and magnetic core 1 is respectively with magnetic core 2
A part for magnetism gathering rings, magnetic core 1 and magnetic core 2 are respectively provided with air gap；Hall element 4 is arranged on the gap position on magnetic core 2, secondary
Level coil 3 is looped around on magnetic core 2；Hall element 6 is arranged on the gap position on magnetic core 1, and secondary coil 7 is looped around on magnetic core 1,
Hall element 4 is symmetrical on magnetism gathering rings with Hall element 6, circuit controller 5 respectively with described secondary coil 3 and 7, described
Hall element 4 and 6 electrically connects, and the signal that Hall element collects is processed；Secondary coil 7 and Hall element 6 pass through to connect
Plug-in unit 8 is connected to circuit controller 5 with secondary coil 3 after electrically connecting, wherein Fig. 2 a is the side-looking of magnetism gathering rings structure in Fig. 2
Figure.
Or, the end portion that magnetic core 1 is meshed with magnetic core 2 is the distressed structure of dentalation, or can mutually no
Any one curved-surface structure that seam combines.
In the current intensity needing to detect tested cable, magnetic core 1 is separated with magnetic core 2, divide from the both sides of tested cable
Do not put into magnetic core 1 and magnetic core 2, magnetic core 1 is mutually seamless with the tooth-like part of anything of the termination of magnetic core 2 to be engaged, now magnetic core 1 and magnetic core 2
Constitute the magnetism gathering rings of closure, magnetism gathering rings, secondary coil 3 and 7, Hall element 4 and 6 and the double Hall of circuit controller 5 composition closed loop
Current sensor.
Air gap on magnetic core 1 and magnetic core 2 is arranged on the centre position of magnetic core 1 and magnetic core 2, or is arranged on magnetic core 1 and magnetic core
2 optional position, its air gap is symmetrical on magnetism gathering rings.
Air gap on magnetic core 1 and magnetic core 2 can be set to N number of, and now the air gap on magnetism gathering rings is exactly 2N, 2N air gap pair
Claim to be 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, two magnetic cores combine rear formed hollow square
Or circle magnetism gathering rings.
Magnetic core 1 is square or circular sub-fraction, and magnetic core 2 is square or circular most, after two magnetic cores combine
Form hollow square or circular magnetism gathering rings.
Magnetism gathering rings can also be that the centre of arbitrary structures has the closed shape of through hole, and magnetic core 1 and magnetic core 2 are that this closes
Two fit ingredients.
Specific embodiment three
A kind of closed-loop Hall current sensor 30 is as shown in Fig. 3, Fig. 3 a, first including magnetism gathering rings, secondary coil 3 and 7, Hall
Part 4 and 6 and circuit controller 5, described magnetism gathering rings include the first mutually isolated magnetism gathering rings and the second magnetism gathering rings, and described
One magnetism gathering rings include two discrete magnetic cores 101 and magnetic core 102, and magnetic core 101 and magnetic core 102 are respectively provided with two terminations, each
End is dentalation, and the dentalation of magnetic core 101 end is matched with the dentalation of magnetic core 102 end, two ends
At head, mutually seamless engagement forms the first magnetism gathering rings of closure, and the first magnetism gathering rings have air gap；Described second magnetism gathering rings include
Two discrete magnetic cores 201 and magnetic core 202, magnetic core 201 and magnetic core 202 are respectively provided with two terminations, and each end is dentation
Structure, the dentalation of magnetic core 201 end is matched with the dentalation of magnetic core 202 end, mutually seamless at two ends
Engagement forms the second magnetism gathering rings of closure, the second magnetism gathering rings has air gap, as shown in Figure 3 a；Hall element 4 is arranged on second
Gap position on the magnetic core 202 of magnetism gathering rings, secondary coil 3 is looped around on magnetic core 102 and magnetic core 202 simultaneously；Hall element 6 sets
Put 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, suddenly
Your element 4 is symmetrical on magnetism gathering rings with Hall element 6, circuit controller 5 respectively with described secondary coil 3 and 7, described suddenly
You electrically connect element 4 and 6, and the signal that Hall element collects is processed；Secondary coil 7 and Hall element 6 pass through to patch
Part 8 is connected to circuit controller 5 with secondary coil 3 after electrically connecting, wherein Fig. 3 a is the side view of magnetism gathering rings structure in Fig. 3.
Or, the end head that end portion that magnetic core 101 is meshed with magnetic core 102, magnetic core 201 are meshed with magnetic core 202
Point be the distressed structure of dentalation, or can mutual seamless combination any one curved-surface structure.
In the current intensity needing to detect tested cable, magnetic core 101,201 and magnetic core are left for 102,202 points, from tested
The both sides of cable are respectively put into magnetic core 101,201 and magnetic core 102,202, the tooth-like part split-phase of the termination of magnetic core 101 and magnetic core 102
Mutually seamless engagement, magnetic core 201 is mutually seamless with the tooth-like part of anything of the termination of magnetic core 202 to be engaged, and magnetic core 101 is constituted with magnetic core 102
First magnetism gathering rings of closure, magnetic core 201 and magnetic core 202 constitute the second magnetism gathering rings of closure, magnetism gathering rings, secondary coil 3 and 7, suddenly
Your element 4 and 6 and circuit controller 5 form bicyclic pair of Hall closed-loop current sensors.
Air gap on magnetic core 101 and magnetic core 202 is arranged on the centre position of magnetic core 101 and magnetic core 202, or is arranged on magnetic core
101 with the optional position of magnetic core 202, or be arranged on the optional position of magnetic core 102 and magnetic core 201, its air gap is right on magnetism gathering rings
Claim distribution.
Air gap number on magnetism gathering rings is 2N, and 2N air gap is symmetrically distributed on magnetism gathering rings, wherein N >=1；Each magnetism gathering rings
The N number of air gap of upper distribution, the quantity of Hall element is equal to air gap number.
Specific embodiment four
A kind of closed-loop Hall current sensor 40 as shown in figure 4, closed-loop Hall current sensor 40 be a kind of monocyclic double suddenly
Your closed-loop current sensors, 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 include magnetic core 4 and magnetic core 9 two parts, and described circuit board includes circuit board 11 and circuit
Plate 12, described skeleton includes skeleton 6 and skeleton 7, and described secondary coil includes secondary coil 3 and secondary coil 5, described cover plate bag
Include cover plate 13 and cover plate 14.
It is provided with magnetic core 9, skeleton 6, secondary coil 3, circuit board 12, secondary coil 3 is looped around on skeleton 6, bone in shell 1
Frame 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；It is provided with shell 2
Magnetic core 4, skeleton 7, secondary coil 5, circuit board 11, secondary coil 5 is looped around on skeleton 7, and skeleton 7 is arranged on magnetic core 4, circuit
Hall element 8 is provided with plate 11, cover plate 13 covers on shell 2, the needs in order to illustrate in Fig. 4, by magnetic core 4, skeleton 7,
Secondary coil 5 separately draws, 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 Hall element location hole 19, the Hall on battery lead plate 12
Element 10 is arranged in location hole 19；Likewise, the relevant position on skeleton 7 and secondary coil 5 is provided with Hall element determining
Position hole 20, the Hall element 8 on battery lead plate 11 is arranged in location hole 20.
Shell is square hollow structure, and shell 1 is a part for described square hollow structure with shell 2, in the present embodiment
Middle shell 1 is symmetrical with shell 2, but not limited to this；Shell 1 and shell 2 seamless connection, are connected with shell 2 in shell 1
The interface at place is provided with seam, as shown in shell 2 seam 21, equally shell 1 two interfaces and shell 2 another
It also is provided with seam on one interface, be not drawn in Fig. 1；It is additionally provided with fixing hole in the joining place of shell 1 and shell 2, such as Fig. 1
The fixing hole 15 of shown shell 1, the fixing hole 16 of shell 2, the quantity of fixing hole and position are arranged as required to, and are not limited to two
Fixing hole.
Magnetism gathering rings are the square hollow structure similar to shell, and magnetic core 4 is respectively described square hollow structure with magnetic core 9
A part, magnetic core 4 and magnetic core 9 are the half of described square hollow structure respectively in the present embodiment, and magnetic core 4 is with magnetic core 9 respectively
There are two terminations, the structure of each end is dentalation, the dentalation of an end of magnetic core 4 and magnetic core 9 one end
The dentalation at head place cooperates and seamless engagement, the dentalation of another end of magnetic core 4 and another end of magnetic core 9
Dentalation cooperate and seamless engagement, the position that magnetic core 4 is seamless with magnetic core 9 to be engaged is located at being connected of shell 1 and shell 2
At mouthful；Magnetic core 4 is provided with air gap, its position is corresponding with the location hole 20 on skeleton 7；It is provided with air gap on magnetic core 9, its
Position is corresponding with the location hole 19 on skeleton 6, and described air gap is symmetric on magnetism gathering rings, corresponding with gap position
Location hole 20 is symmetric on magnetism gathering rings with location hole 19, and air gap described in the present embodiment is separately positioned on magnetic core 4,9
Centre position, but not limited to this.
Circuit board 12 and circuit board 11 are respectively a part for the described square hollow structure similar to magnetic core 9 to magnetic core 4,
Hall element 10, connector 17 and related circuit are provided with circuit board 12, connector 17 is arranged on the termination position of circuit board 12
Put, the two ends of secondary coil 3 are welded on the circuit board 12, circuit board 11 is provided with Hall element 8, connector 18 and corresponding
Circuit, connector 18 is arranged on the tip position of circuit board 11, and the two ends of secondary coil 5 are welded on circuit board 11；Hall
The position of element 8 is corresponding with the location hole 20 on skeleton 7, and the position of Hall element 10 is relative with the location hole 19 on skeleton 6
Should；Connector 17 and connector 18 match, electrical connection circuit plate 12 and circuit board 11 when shell is installed；Circuit board 11,12
Leading foot is arranged by connector or cable mode.
Or, shell is hollow circular configuration, or hollow any circulus.
Specific embodiment five
A kind of closed-loop Hall current sensor 50 as shown in figure 5, closed-loop Hall current sensor 50 be a kind of monocyclic list suddenly
Your closed-loop current sensors, it is with the difference of closed-loop Hall current sensor 40, only arranges one on magnetic core 4
Individual air gap, and air gap is not provided with magnetic core 9, corresponding magnetic core 9 is also not provided with skeleton and secondary coil, in shell 1 also not
Setting circuit board, that is, only one of which air gap, circuit board, skeleton and secondary coil.
The closed-loop current sensors of above monocyclic single Hall include monoskeleton, single secondary coil, single circuit plate.
Or, as needed, the closed-loop current sensors of monocyclic single Hall can also set on magnetic core 4 with magnetic core 9 respectively
Put skeleton and secondary coil, in shell 1 with shell 2, be respectively provided with circuit board.
Specific embodiment six
One of frame mode of magnetism gathering rings 60 is as shown in fig. 6, the square hollow that is made up of magnetic core 4 and magnetic core 9 of magnetism gathering rings 60
Structure, magnetic core 4 and magnetic core 9 are respectively a portion of square hollow structure, and magnetic core 4 has two terminations 23,25, each end
For dentalation at head, air gap 27 is set in the centre position of magnetic core 4, magnetic core 9 has two terminations 24,26, each end
For dentalation, air gap 28 is set in the centre position of magnetic core 9, the dentalation of termination 23 is matched with the dentalation of termination 24
Close, the dentalation of termination 25 is matched with the dentalation of termination 26, when magnetic core 4 is connected with magnetic core 9, the dentation of termination 23
Structure and the dentalation seamless connection of termination 24, the dentalation seamless connection of the dentalation of termination 25 and 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 air gap number of magnetism gathering rings is 2
Integral multiple, be separately positioned on two magnetic cores, now, the air gap of magnetism gathering rings is symmetric on magnetism gathering rings.
Specific embodiment seven
As shown in Figure 7, Figure 8, Fig. 7 is closed-loop Hall current sensor to a kind of external structure of closed-loop Hall current sensor
Structure 70 during folding, Fig. 8 is the structure 80 during closed-loop Hall current sensor closure, and closed-loop Hall current sensor includes point
Vertical shell 1 assembly and shell 2 assembly, shell 1 and shell 2 form square hollow structure, and shell 1 assembly and shell 2 assembly divide
Do not include shell, magnetic core, circuit board, skeleton, secondary coil, cover plate, the dentalation of the end of magnetic core in shell 1 assembly
23rd, 25 protrude from the seam of shell 1 joining place, the dentalation 24,26 of the end of magnetic core in shell 2 assembly protrudes from
The seam of shell 2 joining place, shell 1 assembly and shell 2 assembly are realized no by the location hole 15,16 and 27,28 of joining place
Seam linking, seamless connection also realized at seam by dentalation 23,24 and 25,26.
Specific embodiment eight
A kind of closed-loop Hall current sensor 90 as shown in figure 9, closed-loop Hall current sensor 90 be a kind of bicyclic double suddenly
Your closed-loop current sensors, 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 include the first magnetism gathering rings and the second magnetism gathering rings, and described first magnetism gathering rings include magnetic core
1a and magnetic core 1b two parts, described second magnetism gathering rings include magnetic core 2a and magnetic core 2b two parts, and 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,
Described cover plate includes cover plate 23 and cover plate 24 two parts.
It is provided with magnetic core 1a and 2a, skeleton 19, secondary coil 7, circuit board 21, secondary coil 7 is looped around bone in shell 17
On frame 19, skeleton 19 is arranged on the patchhole being provided with Hall element on magnetic core 1a and 2a at the air gap of skeleton 19, inserts described
Enter to be provided with Hall element 6 at hole, the tip position of circuit board 21 is provided with connector 8a, cover plate 23 covers on shell 1；
It is provided with magnetic core 1b and 2b, skeleton 20, secondary coil 3, circuit board 22, secondary coil 3 is looped around on skeleton 20, bone in shell 18
Frame 7 is arranged on the patchhole being provided with Hall element on magnetic core 1b and 2b at the air gap of skeleton 20, arranges at described patchhole
Have Hall element 4, circuit board 21 tip position be provided with connector 8b, cover plate 24 covers on shell 18, connector 8a with
8b cooperates and electrical connection circuit plate 21 and 22；Needs in order to illustrate in Fig. 9, by magnetic core 1b and 2b, skeleton 20, secondary wire
Circle 3 separately draws, by magnetic core 1a and 2a, skeleton 19 with the result diagram after installing.
First magnetism gathering rings are provided with air gap, its position is corresponding with the patchhole of the Hall element on skeleton 19；The
It is provided with air gap, its position is corresponding with the patchhole of the Hall element on skeleton 20, the first magnetism gathering rings and on two magnetism gathering rings
Gap position on two magnetism gathering rings is symmetric in magnetism gathering rings.Hall element 6 is placed at the air gap of the first magnetism gathering rings, 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
19th, it is additionally provided with the locating slot of described air gap on 20, in figure is not drawn into.
Shell is hollow square structure, and shell 17 is a part for square hollow structure with shell 18, in the present embodiment
Middle shell 17 is symmetrical with shell 18, but not limited to this；Shell 17 and shell 18 seamless connection, in shell 17 and shell
The interface of 18 joining places is provided with seam, and the interface of shell 18 joining place is provided with seam 25,26, and shell 17 is in phase
The position answered also is provided with seam, and in figure is not drawn into；It is respectively equipped with fixing hole 27,28 in the joining place of shell 17 and shell 18,
The quantity of fixing hole and position are arranged as required to.
Magnetism gathering rings are the square hollow structure similar to shell, and magnetic core 1a and 2a, magnetic core 1b and 2b are respectively square hollow
A part for structure, magnetic core 1a and 2a, magnetic core 1b and 2b are the half of square hollow structure respectively in the present embodiment, magnetic core 1a
It is respectively provided with two terminations with 2a, magnetic core 1b and 2b, the structure of each end is dentalation, an end of magnetic core 1a
Dentalation cooperate with the dentalation of magnetic core 1b mono- end and seamless engage, the dentation of another end of magnetic core 1a
Structure is cooperated with the dentalation of another end of magnetic core 1b and seamless engages, likewise, the two of magnetic core 2a and magnetic core 2b
The dentalation of end cooperates and seamless engagement；Magnetic core 1a and 2a, the position of magnetic core 1b and 2b is seamless engagement are located at outer
At the seam of shell 17,18.
Skeleton 19,20 is internal to be double-decker, for isolating the first magnetism gathering rings and the second magnetism gathering rings, the magnetic of the first magnetism gathering rings
The magnetic core 2a of core 1a and the second magnetism gathering rings is separately positioned on each layer of skeleton 19, and secondary coil 7 is looped around magnetic core 1a and magnetic simultaneously
On core 2a, the magnetic core 1b of the first magnetism gathering rings and magnetic core 2b of the second magnetism gathering rings is separately positioned on each layer of skeleton 20, secondary coil 3
It 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.
Specific embodiment nine
A kind of concrete electric connection mode as the closed-loop Hall current sensor that Figure 10, Figure 10 a is specific embodiment eight
100, wherein Figure 10 are the top view of electrical connection, the right view of Figure 10 a electrical connection.
Connector 8a on circuit board 21 is matched with the connector 8b on circuit board 22, and electrical connection circuit plate 21 and electricity
Form magnetism gathering rings 1 after engagement that road plate 22, magnetic core 1a and magnetic core 1b are seamless, after engagement that magnetic core 2a and magnetic core 2b is seamless, form magnetism gathering rings
2；Magnetism gathering rings 1 are located at the front of circuit board 21,22, and the direction of the leading foot of Hall element 6 at magnetism gathering rings 1 air gap is perpendicular to electricity
Road plate 21, the leading foot of Hall element 6 is directly connected on circuit board 21；Magnetism gathering rings 2 are located at the front of magnetism gathering rings 1, because of poly- magnetic
The presence of ring 1, the leading foot of the Hall element 4 at magnetism gathering rings 2 air gap is oriented parallel to circuit board 22, the extraction of Hall element 4
Foot is connected on Hall keyset 25, and Hall keyset 25 connects circuit board 22.
Hall keyset 25 is one of flexible circuit board or pcb board.
Above content is with reference to specific/preferred embodiment further detailed description of the utility model,
It cannot be assumed that of the present utility model be embodied as being confined to these explanations.Common for this utility model art
For technical staff, without departing from the concept of the premise utility, it can also be made to the embodiment that these have described that
Some replacements or modification, and these substitute or variant all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. a kind of closed-loop Hall current sensor, including magnetism gathering rings, secondary coil, Hall element and circuit controller, described poly-
Air gap is had on magnet ring, described Hall element is arranged on the described gap position on described magnetism gathering rings, described secondary coil cincture
On described magnetism gathering rings, described circuit controller electrically connect with described secondary coil, described Hall element it is characterised in that：Institute
State magnetism gathering rings and include two discrete magnetic cores, each magnetic core includes two terminations, two described magnetic core mutual nothings at two ends
Seam engagement forms the magnetism gathering rings of closure, and the end portion that described magnetic core is meshed is curved-surface structure；Described air gap is arranged on described
In magnetic core.
2. closed-loop Hall current sensor according to claim 1 it is characterised in that：The end head that described magnetic core is meshed
It is divided into the dentalation cooperating.
3. closed-loop Hall current sensor according to claim 1 and 2 it is characterised in that：Described magnetic core is with lamellar heap
Folded riveted forms, the dentalation that the end portion formation being meshed in described magnetic core cooperates.
4. closed-loop Hall current sensor according to claim 1 it is characterised in that：Described air gap is disposed therein one
The centre position of magnetic core.
5. closed-loop Hall current sensor according to claim 4 it is characterised in that：Described secondary coil is looped around to be had
On the magnetic core of air gap, or it is looped around on two magnetic cores and electrically connects.
6. closed-loop Hall current sensor according to claim 1 it is characterised in that：Described air gap is separately positioned on two
On magnetic core, and it is symmetric on magnetism gathering rings.
7. closed-loop Hall current sensor according to claim 1 it is characterised in that：Described secondary coil is looped around respectively
On two magnetic cores and electrically connect.
8. closed-loop Hall current sensor according to claim 1 it is characterised in that：Described magnetism gathering rings are hollow square
Or circular, described magnetic core is a described square or circular part accordingly.
9. closed-loop Hall current sensor according to claim 1 it is characterised in that：Described magnetism gathering rings include two mutually
First magnetism gathering rings of isolation and the second magnetism gathering rings.
10. closed-loop Hall current sensor according to claim 9 it is characterised in that：Described first magnetism gathering rings and described
One air gap is respectively provided with the second magnetism gathering rings, described air gap is symmetrically distributed on described magnetism gathering rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140950.0U CN205992012U (en) | 2015-12-31 | 2015-12-31 | A kind of closed-loop Hall current sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548646A (en) * | 2015-12-31 | 2016-05-04 | 深圳青铜剑科技股份有限公司 | Closed-loop Hall current sensor |
| CN109030906A (en) * | 2017-06-09 | 2018-12-18 | 北京普源精电科技有限公司 | A kind of current probe |
| CN110802156A (en) * | 2019-09-29 | 2020-02-18 | 中南大学 | Magnetic collector for improving deformation uniformity of pipe fitting and electromagnetic forming device thereof |
| CN113970663A (en) * | 2021-10-26 | 2022-01-25 | 中国电子科技集团公司第四十九研究所 | Magnetic core for closed-loop Hall current sensor |
-
2015
- 2015-12-31 CN CN201521140950.0U patent/CN205992012U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548646A (en) * | 2015-12-31 | 2016-05-04 | 深圳青铜剑科技股份有限公司 | Closed-loop Hall current sensor |
| CN109030906A (en) * | 2017-06-09 | 2018-12-18 | 北京普源精电科技有限公司 | A kind of current probe |
| CN110802156A (en) * | 2019-09-29 | 2020-02-18 | 中南大学 | Magnetic collector for improving deformation uniformity of pipe fitting and electromagnetic forming device thereof |
| CN113970663A (en) * | 2021-10-26 | 2022-01-25 | 中国电子科技集团公司第四十九研究所 | Magnetic core for closed-loop Hall current sensor |
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Effective date of registration: 20191017 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. |