CN207675823U - Fluxgate current sensor - Google Patents
Fluxgate current sensor Download PDFInfo
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- CN207675823U CN207675823U CN201820117621.1U CN201820117621U CN207675823U CN 207675823 U CN207675823 U CN 207675823U CN 201820117621 U CN201820117621 U CN 201820117621U CN 207675823 U CN207675823 U CN 207675823U
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Abstract
The utility model provides a kind of fluxgate current sensor comprising the first winding coil, second winding coil, first iron core positioned at first winding coil in and the field sensing component arranged side by side with the first winding coil group and two the second small iron cores and two the third-largest iron cores to being inserted in first winding coil and the second winding coil and connecting first winding coil and the second winding coil；The field sensing component is located in one of between the second small iron core and one of them the third-largest iron core.The problems such as the utility model fluxgate current sensor is three iron core fluxgate current sensors, and the utility model solves single iron core there are output current oscillations, overshoot and eccentric indeterminacies in dynamic response；It is greatly improved the dynamic indicator of fluxgate current sensor, effectively reduces output current oscillations and overshoot, and the eccentric phenomena caused by magnetic resistance inequality can simplify core design simultaneously, reduce product cost, improve production efficiency.
Description
Technical field
The utility model belongs to the technical field of sensor more particularly to a kind of fluxgate current sensor.
Background technology
Sensor is a kind of detection device, can detect the relevant information of tested equipment, be transformed into electric signal according to certain rules
Or the information output of other required forms, with requirements such as the transmission, processing, storage, display, record and the controls that meet information.It passes
Sensor application range is very extensive, and a kind of necessary technical support is provided for instrumentation devices.Hall current sensor is to answer
A kind of current measuring element carrying out isolation detection to primary current developed with Hall effect principle, what primary current generated
Collected by magnetism gathering rings, the Hall element being placed in magnetism gathering rings is acquired magnetic field in magnetic field, generates one and primary side magnetic field etc.
The Hall voltage of ratio, by the size for measuring the Hall voltage, so that it may realize the isolation detection to primary current.
The iron core used in fluxgate current sensor currently on the market is usually to be molded complicated iron core, and cost is higher.
To solve the problems, such as this, a kind of fluxgate current sensor that the utility model devises fluxgate iron core and is made of it.
Utility model content
The purpose of this utility model is to provide it is a kind of improve fluxgate current sensor dynamic indicator, effectively reduce it is defeated
Go out current oscillation and the fluxgate current sensor of overshoot.
The utility model provides a kind of fluxgate current sensor, it is characterised in that：It include the first winding coil,
With the first winding coil group be arranged side by side the second winding coil, the first iron core in first winding coil and
Field sensing component and to being inserted in first winding coil and the second winding coil and connecting first winding wire
Two the second small iron cores and two the third-largest iron cores of circle and the second winding coil；The field sensing component is located in one of
Between second small iron core and one of them the third-largest iron core.
Preferably, first winding coil and the second winding coil are equipped with perforative container；First iron core
It is located at field sensing component in the container of first winding coil.
Preferably, the described second small iron core and the third-largest iron core are U-shaped, one of them the third-largest iron core and one of them
Second small iron core is inserted by one end of the container in first winding coil and the second winding coil, another third
Big iron core and another second small iron core are inserted into first winding coil and the second winding by the other end of the container
In coil.
Preferably, the field sensing component is located at from the third-largest iron core being inserted by described container one end and by from institute
Between the second small iron core for stating the insertion of the container other end.
Preferably, two the second small iron cores are respectively the one the second small iron cores and the two the second small iron cores, and each second is small
Iron core includes the first short-movie body, another with first short-movie body one end the second short-movie body connected vertically and with the first short-movie body
One end third short-movie body connected vertically；Two the third-largest iron cores are respectively the first the third-largest iron core and the second the third-largest iron core,
Each the third-largest iron core includes the first long sheet body, with first the connected vertically second long sheet body of long sheet body one end and with the
The one long sheet body of long sheet body other end third connected vertically.
Preferably, the first short-movie body of the one the second small iron core is located at the first winding coil and the second winding coil
The first short-movie body of one end of container, the two the second small iron cores is located at the container of the first winding coil and the second winding coil
The other end, the second short-movie body of the one the second small iron cores and the two the second small iron cores is inserted into the container of the first winding coil
And the one the second second short-movie body of small iron core be resisted against on the first iron core, the one the second small iron cores and the two the second small iron cores
Third short-movie body is inserted into the container of the second winding coil.
Preferably, the first lengthy motion picture body of the described first the third-largest iron core is located at the first winding coil and the second winding coil
One end of container, the first lengthy motion picture body of the second the third-largest iron core are located at the container of the first winding coil and the second winding coil
The other end；Second long sheet body of the first the third-largest iron core is inserted into the container of the first winding coil and is resisted against in container
On wall, the long sheet body of the third of the first the third-largest iron core is inserted into the container of the second winding coil and against the one the second small iron core
Third short-movie body on；Second long sheet body of the second the third-largest iron core is inserted into the container of the first winding coil and is located at magnetic flux
Between gate probe and the second long sheet body of the first the third-largest iron core, the long sheet body of third of the second the third-largest iron core is inserted into the second winding
In the container of coil and against on the long sheet body of third of the first the third-largest iron core.
Preferably, the field sensing component is located at the second long sheet body and the one the second small iron cores of the second the third-largest iron core
The second short-movie body between.
Preferably, further include the outer casing upper cover connected and shell lower cover and circuit board；First iron core, two
Two small iron cores, two the third-largest iron cores, field sensing component and circuit board are respectively positioned between the outer casing upper cover and shell lower cover；
First winding coil and the second winding coil pass through the circuit board.
The utility model fluxgate current sensor is three iron core fluxgate current sensors, solves single iron core and is rung in dynamic
Seasonable the problems such as there are output current oscillations, overshoot and eccentric indeterminacies；It is greatly improved the dynamic of fluxgate current sensor
Index effectively reduces output current oscillations and overshoot, and the eccentric phenomena caused by magnetic resistance inequality can simplify iron core simultaneously
Design reduces product cost, improves production efficiency；Cleverly assembly combination, core structure is simple, and consumptive material is few, can effectively reduce
Product cost and raising production efficiency.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the decomposition diagram of the utility model fluxgate current sensor；
Fig. 2 is the first winding coil of fluxgate current sensor shown in Fig. 1 and the schematic diagram before the assembling of the first iron core；
Fig. 3 is schematic diagram of the first iron core group of fluxgate current sensor shown in Fig. 1 in the first winding coil；
Fig. 4 is the first winding coil of fluxgate current sensor shown in Fig. 1 and the signal before the assembling of the second winding coil
Figure；
Fig. 5 is that the second iron core group of fluxgate current sensor shown in Fig. 1 is mounted in the first winding coil and the second winding wire
Schematic diagram in circle；
Fig. 6 is that the fluxgate magnetic core of fluxgate current sensor shown in Fig. 1 is assembled in the schematic diagram in the first winding coil；
Fig. 7 is that the third iron core group of fluxgate current sensor shown in Fig. 1 is mounted in the first winding coil and the second winding wire
Schematic diagram in circle；
Fig. 8 is that the first winding coil of fluxgate current sensor and the second winding coil shown in Fig. 1 are assembled in circuit board
On schematic diagram；
Fig. 9 is the schematic diagram of the shell lower cover assembling of fluxgate current sensor shown in Fig. 1 on circuit boards；
Figure 10 is the schematic diagram of the outer casing upper cover of fluxgate current sensor shown in Fig. 1 and the assembling of shell lower cover；
Figure 11 is the phantom of fluxgate current sensor shown in Fig. 1；
Figure 12 is the sectional view of another angle of fluxgate current sensor shown in Fig. 1.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The utility model is related to a kind of fluxgate current sensor, fluxgate current sensor can improve closed loop current sensing
Device dynamic response and reduction eccentric phenomena, the utility model fluxgate current sensor can be used for measuring DC current, alternating current
Stream and pulse current.
As shown in Figure 1, the utility model fluxgate current sensor includes the outer casing upper cover 1 snapped connection and shell lower cover
8, the first winding coil 5, with the first winding coil group 5 be arranged side by side the second winding coil 9, be located at the first winding coil 5 in
The first iron core 2 and field sensing component 6, to being inserted in first winding coil, 5 and second winding coil 9 and connection institute
State the first winding coil 5 and the second winding coil 9 two the second small iron cores and two the third-largest iron cores and with the first winding
The circuit board 7 that coil 5 and the second winding coil 9 are all connected with.
Wherein, the first iron core 2, the second small iron core and the third-largest iron core are made of alloy material.First iron core 2,
Two the second small iron cores, two the third-largest iron cores, field sensing component 6 and circuit board 7 are respectively positioned on the outer casing upper cover 1 and shell
Between lower cover 8；First winding coil 5 and the second winding coil 9 pass through the circuit board；Field sensing component 6 is located therein one
Between a second small iron core and one of them the third-largest iron core.
Wherein, outer casing upper cover 1 is equipped with multiple first buckling bodies 11；Shell lower cover 8 is equipped with excrescence 81 and under shell
Multiple second buckling bodies 82 of 8 side of lid；Second buckling body of 8 side of the first buckling body 11 and shell lower cover of outer casing upper cover 1
82 assembling cooperations, realize that outer casing upper cover 1 and shell lower cover 8 snap connection.
In the present embodiment, the first buckling body 11 is projecting block, and the second buckling body 82 is groove, is mounted on by projecting block
In groove, realize that outer casing upper cover 1 and shell lower cover 8 snap connection；In other embodiments, the first buckling body 11 is groove, the
Two buckling bodies 82 are projecting block, are mounted in groove by projecting block, realize that outer casing upper cover 1 and shell lower cover 8 snap connection.
First iron core 2 is in the form of sheets.
Two the second small iron cores are respectively the one the second small iron cores 31 and the two the second small iron cores 32, each second small iron core
It is U-shaped.Each second small iron core includes the first short-movie body 311 and the second short-movie connected vertically of 311 one end of the first short-movie body
Body 321 and with 311 other end of the first short-movie body third short-movie body 331 connected vertically.
Two the third-largest iron cores are respectively the first the third-largest iron core 41 and the second the third-largest iron core 42, each the third-largest iron core
It is U-shaped.Each the third-largest iron core includes the first long sheet body 411 and 411 one end of the first long sheet body the second lengthy motion picture connected vertically
Body 421 and with the long sheet body of 411 other end of the first long sheet body third connected vertically 431.
First winding coil 5 and the second winding coil 9 are equipped with perforative container 59 and multiple pins 95, the first winding
The internal diameter of the container 59 of coil 5 is more than the internal diameter of the container 59 of the second winding coil 9, the container of the first winding coil 5
Card slot 591 is additionally provided in 59.
The assemble method of this fluxgate current sensor, includes the following steps：
Step S1：As shown in Figures 2 and 3, the first iron core 2 is inserted into the container 59 of the first winding coil 5 and is resisted against
On the side inner wall of container 59；
Step S2：As shown in Figure 4 and Figure 5, the first winding coil 5 and the second winding coil 9 containing the first iron core 2 are inserted into
Placed side by side, the one the second small iron cores 31 and the two the second small iron cores 32 are to being inserted into the first winding coil 5 containing the first iron core 2
In the second winding coil 9, wherein the first short-movie body 311 of the one the second small iron cores 31 is located at the first winding coil 5 and second
The first short-movie body 311 of one end of the container 59 of winding coil 9, the two the second small iron cores 32 is located at 5 He of the first winding coil
The other end of the container 59 of second winding coil 9, the second short-movie of the one the second small iron cores 31 and the two the second small iron cores 32
Body 321 is inserted into the container 59 of the first winding coil 5 and the second short-movie body 321 of the one the second small iron cores 31 is resisted against first
On iron core 2, the third short-movie body 331 of the one the second small iron cores 31 and the two the second small iron cores 32 is inserted into the second winding coil 9
In container 59；
Step S3：As shown in fig. 6, fluxgate magnetic core 6 is mounted in the container 59 of the first winding coil 5 and is held in card
In slot 591；
Step S4：As shown in fig. 7, the first the third-largest iron core 41 and the second the third-largest iron core 42 are to being inserted into the first winding coil
5 and second winding coil 9 container 59 in；Wherein, the first long sheet body 411 of the first the third-largest iron core 41 is located at the first winding
The first long sheet body 411 of one end of the container 59 of coil 5 and the second winding coil 9, the second the third-largest iron core 42 is located at first
The other end of the container 59 of winding coil 5 and the second winding coil 9；Second long sheet body 421 of the first the third-largest iron core 41 is inserted
Enter in the container 59 of the first winding coil 5 and is resisted against on 59 inner wall of container, the third lengthy motion picture of the first the third-largest iron core 41
Body 431 is inserted into the container 59 of the second winding coil 5 and against on the third short-movie body 331 of the one the second small iron cores 31；The
Second long sheet body 421 of two the third-largest iron cores 42 is inserted into the container 59 of the first winding coil 5 and is located at 6 He of fluxgate magnetic core
Between second long sheet body 421 of the first the third-largest iron core 41, the long sheet body 431 of the third of the second the third-largest iron core 42 be inserted into second around
In the container 59 of group coil 5 and against on the long sheet body of the third of the first the third-largest iron core 41 431；
Step S5：As shown in figure 8, the pin 95 of the first winding coil 5 and the second winding coil 9 both passes through circuit board 7 simultaneously
It is fixed on circuit board 7；
Step S6：As shown in figure 9, the excrescence 81 of shell lower cover 8 passes through the fluting 71 of circuit board 7 from the bottom up, it is prominent
Body 81 is between the first winding coil 5 and the second winding coil 9；
Step S7：As shown in Figure 10, outer casing upper cover 1 is mounted on shell lower cover 8 from top to bottom, realizes 1 He of outer casing upper cover
Shell lower cover 8 snaps connection.
If necessary, fluxgate current sensor needs casting glue to fix.
The assembling for completing fluxgate current sensor through the above steps is put in the first winding coil 5 in the present embodiment
The field sensing component set is fluxgate magnetic core 6, and certain field sensing component may be highly sensitive magnetic resistance device or IC etc..
As is illustrated by figs. 11 and 12, field sensing component is located in the container 59 of the first winding coil 5 and is located at second
Between second long sheet body 421 of the third-largest iron core 42 and the second short-movie body 321 of the one the second small iron cores 31.
I.e.：One of them the third-largest iron core and one of them second small iron core are inserted into described the by one end of container 59
In one winding coil 2 and the second winding coil 3, another the third-largest iron core and another second small iron core are by the container
59 other end is inserted into first winding coil and the second winding coil；Field sensing component is located at from by the container
One end be inserted into the third-largest iron core and by between the second small iron core that the container other end is inserted into.
The utility model fluxgate current sensor is three iron core fluxgate current sensors, and entire magnetic circuit is to be closed
, the problems such as the utility model solves single iron core there are output current oscillations, overshoot and eccentric indeterminacies in dynamic response；It can
The dynamic indicator for greatly improving fluxgate current sensor effectively reduces output current oscillations and overshoot, and because of magnetic resistance injustice
The eccentric phenomena Deng caused by can simplify core design simultaneously, reduce product cost, improve production efficiency；Core structure letter simultaneously
Single, consumptive material is few, can effectively reduce product cost and improve production efficiency.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should
It is subject to the protection scope in claims.
Claims (9)
1. a kind of fluxgate current sensor, it is characterised in that：It includes the first winding coil and the first winding coil group
Second winding coil, the first iron core in first winding coil and field sensing component arranged side by side and right
It is inserted in first winding coil and the second winding coil and connection first winding coil and the second winding coil
Two the second small iron cores and two the third-largest iron cores；The field sensing component is located in one of the second small iron core and wherein one
Between a the third-largest iron core.
2. fluxgate current sensor according to claim 1, it is characterised in that：First winding coil and second around
Group coil is equipped with perforative container；First iron core and field sensing component are located at the receiving of first winding coil
In slot.
3. fluxgate current sensor according to claim 2, it is characterised in that：The second small iron core and the third-largest iron
Core is U-shaped, described in one end insertion of one of them the third-largest iron core and one of them second small iron core by the container
In first winding coil and the second winding coil, another the third-largest iron core and another second small iron core are by the container
The other end be inserted into first winding coil and the second winding coil.
4. fluxgate current sensor according to claim 3, it is characterised in that：The field sensing component be located at from by
The third-largest iron core that described container one end is inserted into and by between the second small iron core that the container other end is inserted into.
5. fluxgate current sensor according to claim 2, it is characterised in that：Two the second small iron cores are respectively first
Second small iron core and the two the second small iron cores, each second small iron core include the first short-movie body, hang down with first short-movie body one end
Direct-connected the second short-movie body connect and with the first short-movie body other end third short-movie body connected vertically；Two the third-largest iron cores
Respectively first the third-largest iron core and the second the third-largest iron core, each the third-largest iron core include the first long sheet body, are grown with first
The connected vertically second long sheet body of sheet body one end and with the first long sheet body of long sheet body other end third connected vertically.
6. fluxgate current sensor according to claim 5, it is characterised in that：The first of the one the second small iron core
Short-movie body is located at one end of the container of the first winding coil and the second winding coil, the first short-movie body of the two the second small iron cores
Positioned at the other end of the first winding coil and the container of the second winding coil, the one the second small iron cores and the two the second small iron cores
The second short-movie body be inserted into the container of the first winding coil and the second short-movie body of the one the second small iron cores is resisted against first
On iron core, the third short-movie body of the one the second small iron cores and the two the second small iron cores is inserted into the container of the second winding coil.
7. fluxgate current sensor according to claim 6, it is characterised in that：The first of the first the third-largest iron core
Lengthy motion picture body is located at one end of the container of the first winding coil and the second winding coil, the first long sheet body of the second the third-largest iron core
Positioned at the other end of the first winding coil and the container of the second winding coil；Second long sheet body of the first the third-largest iron core is inserted into
It in the container of first winding coil and is resisted against on container inner wall, the long sheet body of third of the first the third-largest iron core is inserted into second
In the container of winding coil and against on the third short-movie body of the one the second small iron cores；Second lengthy motion picture of the second the third-largest iron core
Body is inserted into the container of the first winding coil and between fluxgate magnetic core and the second long sheet body of the first the third-largest iron core,
The long sheet body of the third of second the third-largest iron core is inserted into the container of the second winding coil and against the of the first the third-largest iron core
On three long sheet bodies.
8. fluxgate current sensor according to claim 7, it is characterised in that：The field sensing component is located at second
Between second long sheet body of the third-largest iron core and the second short-movie body of the one the second small iron cores.
9. fluxgate current sensor according to claim 1, it is characterised in that：Further include the outer casing upper cover of connection and outer
Shell lower cover and circuit board；First iron core, two the second small iron cores, two the third-largest iron cores, field sensing component and electricity
Road plate is respectively positioned between the outer casing upper cover and shell lower cover；First winding coil and the second winding coil pass through the electricity
Road plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820117621.1U CN207675823U (en) | 2018-01-24 | 2018-01-24 | Fluxgate current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820117621.1U CN207675823U (en) | 2018-01-24 | 2018-01-24 | Fluxgate current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207675823U true CN207675823U (en) | 2018-07-31 |
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ID=62974029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820117621.1U Active CN207675823U (en) | 2018-01-24 | 2018-01-24 | Fluxgate current sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207675823U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799380A (en) * | 2019-01-29 | 2019-05-24 | 湖南银河电气有限公司 | A kind of integrated electric flow sensor and its packaging method |
| CN113341201A (en) * | 2021-06-08 | 2021-09-03 | 合肥博微田村电气有限公司 | Fluxgate current sensor and current measuring method |
-
2018
- 2018-01-24 CN CN201820117621.1U patent/CN207675823U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799380A (en) * | 2019-01-29 | 2019-05-24 | 湖南银河电气有限公司 | A kind of integrated electric flow sensor and its packaging method |
| CN109799380B (en) * | 2019-01-29 | 2021-03-02 | 湖南银河电气有限公司 | Integrated current sensor and packaging method thereof |
| CN113341201A (en) * | 2021-06-08 | 2021-09-03 | 合肥博微田村电气有限公司 | Fluxgate current sensor and current measuring method |
| CN113341201B (en) * | 2021-06-08 | 2022-08-09 | 合肥博微田村电气有限公司 | Fluxgate current sensor and current measuring method |
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