CN203117261U - Novel open magnetic-core-free current sensor with compensation structure - Google Patents
Novel open magnetic-core-free current sensor with compensation structure Download PDFInfo
- Publication number
- CN203117261U CN203117261U CN 201320064592 CN201320064592U CN203117261U CN 203117261 U CN203117261 U CN 203117261U CN 201320064592 CN201320064592 CN 201320064592 CN 201320064592 U CN201320064592 U CN 201320064592U CN 203117261 U CN203117261 U CN 203117261U
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- current sensor
- copper wire
- induction lines
- fixing head
- termination
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Abstract
The utility model relates to a novel open magnetic-core-free current sensor with a compensation structure, which can effectively solve problems including that a prior current sensor has to be installed in a power off state during current detection, saturation, magnetic resonance and heating may occur in the prior current sensor, and current signal sampling and processing by post equipment are complex so that precision is influenced. The current sensor of the utility model comprises a fixed head and an inductive line, wherein a cylindrical magnetic shielding ring is installed in the fixed head; the inductive line is composed of a flexible plastic rod and an enameled copper wire wound around the flexible plastic rod; an insulating wrapping layer is arranged outside the enameled copper wire; one end of the inductive line is fixedly arranged in a cavity at one end of the cylindrical magnetic shielding ring, and the other end of the inductive line is movably fixed in a cavity at the right end of the cylindrical magnetic shielding ring, thereby forming an inductive coil; a lead sleeve is arranged on the fixed head; and two ends of the enameled copper wire penetrate through the fixed head and are arranged in the lead sleeve to form a signal output lead. The novel open magnetic-core-free current sensor with the compensation structure is simple in structure, convenient in use, and safe and reliable in performance, wherein the flexible opening design provides convenience for installation.
Description
Technical field
The utility model relates to electric elements, and particularly a kind of novel opening does not have magnetic core band collocation structure current sensor.
Background technology
To use the common magnetic core mutual inductor when now electrical network being carried out current detecting, be non-ferrous metal magnetic cores such as siliconized plate magnetic core, FERRITE CORE, ultracrystallite magnetic core, and mounting structure is the bus punching, need have a power failure when installing and using, and when energising lead-out terminal must carry out short circuit, otherwise can produce high pressure, cause danger, waste time and energy, brought great inconvenience and potential safety hazard for tester and electric consumer; Because of the problem of magnetic core magnetoconductivity, can produce problems such as saturated, magnetic resonance, heating, its output signal is current signal, when back level equipment adopts its signal, need carry out voltage division processing, because the link of its error increases.
Summary of the invention
At above-mentioned situation, for overcoming the defective of prior art, the purpose of the utility model just provides a kind of novel opening does not have magnetic core band collocation structure current sensor, can effectively solve installations that to have a power failure when estimated current detects, and how existing current sensor can produce saturated, magnetic resonance, heating and back level device processes current sampling signal link and influence problem such as precision.
The technical scheme of its solution is, comprise fixing head and induction lines, in the fixing head cylindrical shape ring shielding magnetism is housed, the induction lines are made of the enamel-cover copper wire that twines on flexiplast rod and the flexiplast rod, the enamel-cover copper wire has insulated cladding outward, one end of induction lines fixedly places in the cavity of cylindrical shape ring shielding magnetism one end, the other end activity of induction lines is fixed in the cavity of cylindrical shape ring shielding magnetism right-hand member, constitute inductive coil, fixing head is gone up leaded cover, and the two ends of enamel-cover copper wire are passed fixing head and placed in the lead-in wire cover and constitute the signal output lead.
The utility model is simple in structure, and is easy to use, safe and reliable, the convenient installation of flexible opening design.
Description of drawings
Fig. 1 is the utility model closure state front view.
Fig. 2 is the utility model closure state part sectioned view.
Fig. 3 is the enlarged drawing of the utility model piecing devices sectional view.
Fig. 4 is the synoptic diagram of the utility model open mode.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Provided by Fig. 1 to Fig. 4, the utility model comprises fixing head and induction lines, in fixing 4 cylindrical shape ring shielding magnetism 5 is housed, induction lines 1 are made of the enamel-cover copper wire 3 that twines on flexiplast rod 2 and the flexiplast rod 2, insulated cladding is arranged outside the enamel-cover copper wire 3, one end of induction lines 1 fixedly places in the cavity of cylindrical shape ring shielding magnetism 5 one ends, the other end activity of induction lines 1 is fixed in the cavity of cylindrical shape ring shielding magnetism 5 right-hand members, constitute inductive coil, leaded cover 7 on fixing 4, the two ends of enamel-cover copper wire 3 pass fixing 4 and place in the lead-in wire cover 7 and constitute the signal output leads.
Be set with termination 6 on the said induction lines 1 movable fixing end, fixing 4 right-hand member have the buckle corresponding with termination 6, and matching with buckle in termination 6, realizes the movable interior purpose of cylindrical shape ring shielding magnetism 5 cavitys that is fixed on of the other end of induction lines 1.
Copper wire termination on the said induction lines 1 movable stiff end oppositely places in the lead-in wire cover through fixing 4 through the insulation covering and with the copper wire termination of induction lines 1 stiff end is common.
When the utility model uses, the termination 6 of induction lines 1 right-hand member is extracted from fixing 4, termination 6 is installed in fixing 4 after being enclosed within on the busbar again and constitutes inductive coil, the current information among the inductive coil induction busbar is exported by the signal output lead; The utility model uses flexible opening design, ring shielding magnetism 5 is equipped with in the opening junction, carry out magnetic compensation, its error changed in 1% when busbar was changed in the corresponding center of the utility model product, and no magnetic core design of the present utility model makes the utility model not have shortcomings such as the generation of common current sensor is saturated, resonance, it is output as a millivolt magnitude voltage signals, sampling AD can directly adopt its signal, does not have links such as other dividing potential drops, and accuracy is higher.
The utility model is simple in structure, and is easy to use, safe and reliable, the convenient installation of flexible opening design.
Claims (3)
1. a novel opening does not have magnetic core band collocation structure current sensor, comprise fixing head and induction lines, it is characterized in that, in the fixing head (4) cylindrical shape ring shielding magnetism (5) is housed, induction lines (1) are gone up the enamel-cover copper wire (3) that twines by flexiplast rod (2) and flexiplast rod (2) and are constituted, insulated cladding is arranged outside the enamel-cover copper wire (3), one end of induction lines (1) fixedly places in the cavity of cylindrical shape ring shielding magnetism (5) one ends, the other end activity of induction lines (1) is fixed in the cavity of cylindrical shape ring shielding magnetism (5) right-hand member, constitute inductive coil, fixing head (4) is gone up leaded cover (7), and the two ends of enamel-cover copper wire (3) are passed fixing head (4) and placed and constitute the signal output lead in the lead-in wire cover (7).
2. a kind of novel opening according to claim 1 does not have magnetic core band collocation structure current sensor, it is characterized in that, be set with termination (6) on the movable fixing end of said induction lines (1), fixing head (4) right-hand member has the buckle corresponding with termination (6), matching with buckle in termination (6), realizes the movable purpose that is fixed in cylindrical shape ring shielding magnetism (5) cavity of the other end of induction lines (1).
3. a kind of novel opening according to claim 1 does not have magnetic core band collocation structure current sensor, it is characterized in that the copper wire termination on the movable stiff end of said induction lines (1) oppositely places in the lead-in wire cover through fixing head (4) through the insulation covering and with the copper wire termination of induction lines (1) stiff end is common.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064592 CN203117261U (en) | 2013-01-29 | 2013-01-29 | Novel open magnetic-core-free current sensor with compensation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064592 CN203117261U (en) | 2013-01-29 | 2013-01-29 | Novel open magnetic-core-free current sensor with compensation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203117261U true CN203117261U (en) | 2013-08-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320064592 Expired - Fee Related CN203117261U (en) | 2013-01-29 | 2013-01-29 | Novel open magnetic-core-free current sensor with compensation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203117261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425774A (en) * | 2017-08-25 | 2019-03-05 | 南京理工大学 | Easy-to-install current sensor adopting magnetoelectric composite material |
-
2013
- 2013-01-29 CN CN 201320064592 patent/CN203117261U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425774A (en) * | 2017-08-25 | 2019-03-05 | 南京理工大学 | Easy-to-install current sensor adopting magnetoelectric composite material |
| CN109425774B (en) * | 2017-08-25 | 2022-05-13 | 南京理工大学 | Easy-to-install current sensor adopting magnetoelectric composite material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140129 |