CN207586301U - Half opening iron core closed-loop current sensors - Google Patents
Half opening iron core closed-loop current sensors Download PDFInfo
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- CN207586301U CN207586301U CN201721848692.0U CN201721848692U CN207586301U CN 207586301 U CN207586301 U CN 207586301U CN 201721848692 U CN201721848692 U CN 201721848692U CN 207586301 U CN207586301 U CN 207586301U
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- iron core
- half opening
- current sensors
- loop current
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 239000011258 core-shell material Substances 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 10
- 230000010355 oscillation Effects 0.000 abstract description 9
- 239000000047 product Substances 0.000 description 7
- 238000001514 detection method Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000005355 Hall effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model provides a kind of half opening iron core closed-loop current sensors, including circuit board, winding coil, the iron core shell wound by winding coil, further includes half opening iron core and field sensing component in shown iron core shell；The central axis direction of the upper surface of the half opening magnet along half opening iron core is equipped with opening, and the field sensing component is placed in the opening.The utility model half opening iron core half opening iron core closed-loop current sensors, by the way that field sensing component is placed in the opening of half opening iron core, solving single iron core, there are the problems such as output current oscillations, overshoot and eccentric indeterminacy in dynamic response, it is greatly improved the dynamic indicator of half opening iron core closed-loop current sensors, output current oscillations and overshoot are effectively reduced, while greatly reduces the eccentric phenomena caused by magnetic resistance inequality.
Description
Technical field
The utility model belongs to the technical field of sensor more particularly to a kind of half opening iron core closed-loop current sensors.
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, to meet the requirements such as the transmission of information, processing, storage, display, record and control.It passes
Sensor application range is very extensive, and a kind of necessary technical support is provided for instrumentation devices.Hall current sensor is should
A kind of current measuring element that isolation detection is carried out to primary current developed with Hall effect principle, what primary current generated
As 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.
Closed loop or magnetic balance type Hall current sensor be high current is transformed to using Hall effect it is secondary micro-
The sensor of small voltage signal, because it is with the spies such as measurement range is wide, electrical isolation performance is good, high certainty of measurement, the linearity are good
Point.
The iron core used in closed-loop current sensors currently on the market is usually the single iron core with open, straight surveying
It can meet application during galvanic electricity stream.But on dynamic response, if trace pulse rushes electric current, then can due to iron core open magnetic resistance and around
The inductive impact of group coil, phenomena such as causing output current that oscillation, overshoot and eccentric indeterminacy occurs.To solve the problems, such as this,
The utility model devises a kind of half opening iron core closed-loop current sensors.
Utility model content
The purpose of this utility model is to provide a kind of half opening iron core closed loop current sensings for greatly improving dynamic property
Device.
The utility model provides a kind of half opening iron core closed-loop current sensors, including circuit board, winding coil, by around
The iron core shell of group coil winding, further includes half opening iron core and field sensing component in the iron core shell；Institute
The upper surface for stating half opening magnet is equipped with opening along the central axis direction of half opening iron core, and the field sensing component is placed on institute
It states in opening.
Preferably, the field sensing component is Hall chip, magnetoresistance device or fluxgate magnetic core.
Preferably, the half opening iron core refers to cut away a part of iron core in the cross-wise direction along iron core, also leaves portion
It is connection to divide iron core.
Preferably, the half opening iron core closed-loop current sensors are located in product casing, are equipped in the product casing
At least one receiving cavity and the cylinder in host cavity body, half opening iron core closed-loop current sensors are located at outside product
In the host cavity body of shell.
The utility model half opening iron core half opening iron core closed-loop current sensors, by the way that field sensing component is placed on
In the opening of half opening iron core, solving single iron core, there are output current oscillations, overshoot and eccentric indeterminacies etc. in dynamic response
Problem is greatly improved the dynamic indicator of half opening iron core closed-loop current sensors, effectively reduces output current oscillations and overshoot,
Greatly reduce the eccentric phenomena caused by magnetic resistance inequality simultaneously.
Description of the drawings
It 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, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the decomposition diagram of the utility model half opening iron core closed-loop current sensors；
Fig. 2 is the vertical view of half opening iron core closed-loop current sensors shown in Fig. 1.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, 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 embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
A kind of half opening iron core closed-loop current sensors of the utility model mainly solve single iron core and exist in dynamic response
The problems such as output current oscillations, overshoot and eccentric indeterminacy, the utility model can be used for measuring DC current, alternating current and arteries and veins
Rush electric current.
As depicted in figs. 1 and 2, half opening iron core closed-loop current sensors include circuit board 1, winding coil 2, iron core shell
3 and half opening iron core 4, this half opening iron core closed-loop current sensors be located in product casing 5.Wherein, half opening magnet 4
The central axis direction of upper surface along half opening iron core set there are one opening 41, the opening 41 of half opening iron core 4 places magnetic field inspection
Element 6 is surveyed, field sensing component 6 is for Hall chip, magnetoresistance device, fluxgate magnetic core or other chips etc., in the present embodiment,
Field sensing component 6 is Hall chip.
Half opening iron core 4 is in annulus, and half opening iron core 4 refers to cut away a part of iron core in the cross-wise direction along iron core,
It is connection also to leave part iron core.
By the way that field sensing component 6 is placed in the opening 41 of half opening iron core 4, single iron core is solved in dynamic response
There are the problems such as output current oscillations, overshoot and eccentric indeterminacy, the dynamic of half opening iron core closed-loop current sensors is greatly improved
State property energy.
The assembling mode of this half opening iron core closed-loop current sensors is：Half opening iron core 4 is located in iron core shell 3, iron
Winding coil 2 is wound on core housing 3, circuit board 1 and winding coil 2 are put in product casing 5.
Cylinder 52 in product casing 5 equipped at least one receiving cavity 51 and in receiving cavity 51, this is half-open
Mouth iron core closed-loop current sensors are located in the receiving cavity 51 of product casing 5, i.e.,：Half opening iron core 4 is set on cylinder 52,
Iron core shell 3 is set on half opening iron core 4, and winding coil 2 is around being located on iron core shell 3 and around half opening iron core 4, circuit
Plate 1 is fixed on iron core shell 3.When necessary, half opening iron core closed-loop current sensors are fixed on by product casing 5 using encapsulating
It is interior.
The utility model half opening iron core half opening iron core closed-loop current sensors, by the way that field sensing component is placed on
In the opening of half opening iron core, solving single iron core, there are output current oscillations, overshoot and eccentric indeterminacies etc. in dynamic response
Problem is greatly improved the dynamic indicator of half opening iron core closed-loop current sensors, effectively reduces output current oscillations and overshoot,
Greatly reduce the eccentric phenomena caused by magnetic resistance inequality simultaneously.
The preferable specific embodiment of the above, only the utility model, but the scope of protection of the utility model is not
This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, can be readily occurred 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 (4)
1. a kind of half opening iron core closed-loop current sensors, including circuit board, winding coil, the iron core wound by winding coil
Shell, it is characterised in that：Further include the half opening iron core and field sensing component in the iron core shell；It is described half-open
The upper surface of mouth iron core is equipped with opening along the central axis direction of half opening iron core, and the field sensing component is placed on the opening
It is interior.
2. half opening iron core closed-loop current sensors according to claim 1, it is characterised in that：The field sensing component
For Hall chip, magnetoresistance device or fluxgate magnetic core.
3. half opening iron core closed-loop current sensors according to claim 1 or 2, it is characterised in that：The half opening iron
Core refers to cut away a part of iron core in the cross-wise direction along iron core, and it is connection also to leave part iron core.
4. half opening iron core closed-loop current sensors according to claim 1 or 2, it is characterised in that：The half opening iron
Core closed-loop current sensors are located in product casing, at least one receiving cavity are equipped in the product casing and positioned at receipts
Cylinder in reservoir body, half opening iron core closed-loop current sensors are located in the host cavity body of product casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721848692.0U CN207586301U (en) | 2017-12-26 | 2017-12-26 | Half opening iron core closed-loop current sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721848692.0U CN207586301U (en) | 2017-12-26 | 2017-12-26 | Half opening iron core closed-loop current sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207586301U true CN207586301U (en) | 2018-07-06 |
Family
ID=62740391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721848692.0U Active CN207586301U (en) | 2017-12-26 | 2017-12-26 | Half opening iron core closed-loop current sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207586301U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112379146A (en) * | 2020-10-27 | 2021-02-19 | 威胜集团有限公司 | Current sensor |
| CN113466530A (en) * | 2020-03-31 | 2021-10-01 | 比亚迪半导体股份有限公司 | Current sensor |
-
2017
- 2017-12-26 CN CN201721848692.0U patent/CN207586301U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466530A (en) * | 2020-03-31 | 2021-10-01 | 比亚迪半导体股份有限公司 | Current sensor |
| CN112379146A (en) * | 2020-10-27 | 2021-02-19 | 威胜集团有限公司 | Current sensor |
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