CN2266132Y - Current transducer - Google Patents
Current transducer Download PDFInfo
- Publication number
- CN2266132Y CN2266132Y CN 96215590 CN96215590U CN2266132Y CN 2266132 Y CN2266132 Y CN 2266132Y CN 96215590 CN96215590 CN 96215590 CN 96215590 U CN96215590 U CN 96215590U CN 2266132 Y CN2266132 Y CN 2266132Y
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- CN
- China
- Prior art keywords
- sensor
- current
- current sensor
- utility
- automatic control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a current sensor which is manufactured by a lead wire winding around a non-closed iron core. The sensor is fixed on a conducting wire or a conductor which is near to a passing alternating current. Both ends of a winding can induce an alternating signal which can form a linear proportion with the alternating current; the signal can be connected with instruments, meters and an automatic control system after the signal is amplified so as to achieve the purpose of measuring the current and carrying out automatic control. A plurality of sensor units can be connected in series to form a current sensor of multiple types, such as a straight line shape current sensor, a circular current sensor, a rectangular current sensor, a groove-shaped sensor, etc. The utility model has the advantages of small volume, high precision, convenient interface, etc. The utility model can be widely applied to power supplying systems, power utilization systems and automatic control systems.
Description
The utility model relates to fields such as power supply, electricity consumption, automatic control, is used for current measurement, particularly current transformer.
Current transformer is to utilize the principle of transformer to make, and it can become big electric current in little electric current, measure according to different current ratios, metering etc.Be widely used in power supply, fields such as electricity consumption and automatic control.Have reasons such as leakage field, eddy current, magnetic saturation owing to current transformer, thus be difficult to improve the current measurement precision, and volume, weight all is difficult to realize miniaturization.
The purpose of this utility model is to increase a kind of novel miniaturization on the basis of existing current transformer, and the current with high accuracy sensor can replace current transformer in some occasion.
Current sensor principal feature described in the utility model is: the unit number of described sensor more than or equal to! Each unit of described sensor comprises iron core, coil.Described iron core is non-iron core-closed, described coil around non-iron core-closed on.The units in series of described sensor connects.The sensor unit of coupled in series is in-line, circle, rectangle, flute profile etc.
Basic structure of the present utility model is that lead is wound on the iron core of non-closure, and this coil and iron core are formed the elementary cell of current sensor.Principle of work is current sensor to be fixed or approaching being connected with on the lead or conductor of alternating current, produce around lead or the conductor electromagnetic field is arranged, the winding A of sensor, B two ends will induce and alternating voltage by lead or the linear ratio of conductor alternating current, ac voltage signal are amplified again or mould/number conversion, promptly can be used for various instrument and meters or automatic control system etc.The utility model formation in-line that a plurality of current sensors unit evenly can also be distributed, circle, the current sensor of dissimilar and different size such as square, rectangle, flute profile.Form in-line (plane) current sensor by one or more sensor elementary cell coupled in series and even the distribution.During use the in-line current sensor is vertically fixed on the conducting plane that is connected with alternating current; Form the round electric sensor by a plurality of sensor elementary cell coupled in series and even the distribution.During use with the round electric sensor sleeve at lead; By the elementary cell coupled in series of a plurality of sensors and evenly distribute and forms the rectangle current sensor, during use with the rectangle sensor sleeve on band shape or tabular conductor; Form the flute profile current sensor by a plurality of sensor elementary cell coupled in series and even the distribution.The flute profile current sensor is clipped on the tabular conductor of power supply during use.
The utility model has than current transformer in the past that volume is little, in light weight, precision is high, good linearity.With digital watch, computer charges, and computer meter pipe now waits interface convenient.As be used for the motor protection system and will improve the protection precision greatly.In power supply, in electricity consumption and the automatic control system field development prospect is preferably arranged.
Below in conjunction with description of drawings:
Fig. 1-A current sensor basic cell structure figure.
Fig. 1-B current sensor elementary cell schematic diagram.
Fig. 2 in-line current sensor structure principle chart.
Fig. 3 round electric sensor construction schematic diagram.
Fig. 4 rectangle current sensor structure principle chart.
Fig. 5 flute profile current sensor structure principle chart.
With reference to Fig. 1-A is the structural drawing of fundamental form current sensor, a winding technique is arranged on the iron core of non-closure, and the skeleton of packing into is fixed on conductor or the lead, constitutes current sensor.
When conductor or lead during by alternating current, induce the voltage signal with the linear ratio of alternating current on the winding of sensor, can be directly after will this signal amplifying with instrument and meter or automatically control connect, reach current measurement or automatic control etc.
With reference to Fig. 1-B, be current sensor elementary cell schematic diagram.
With reference to Fig. 2, evenly distributed by three current sensor elementary cells, the serial connection in order end to end of basic winding, the skeleton of packing into is formed the in-line current sensor.During use sensor is fixed on strip or the plate-shaped conductors.
With reference to Fig. 3, be evenly distributed circular by eight current sensor elementary cells, the serial connection in order end to end of each winding, the skeleton of packing into is formed the round electric sensor, is enclosed within on the lead during use.
With reference to Fig. 4, be by eight evenly distributed rectangularities of current sensor elementary cell, the serial connection in order end to end of each winding, the skeleton of packing into is formed the rectangle current sensor, is enclosed within during use outside strip or the tabular conductor.
With reference to Fig. 5, be to be evenly arranged into flute profile by seven current sensor elementary cells, the skeleton of packing into that is connected in series in order end to end of each winding is formed the flute profile current sensor, is clipped in during use on banded or the tabular conductor.
Claims (5)
1, a kind of current sensor, it is characterized in that described sensor the big what of unit number or etc. each unit of what 1, described sensor comprise iron core, coil; Described iron core is non-iron core-closed, described coil around non-iron core-closed on; The units in series of described sensor connects.
2, sensor according to claim 1 is characterized in that: the sensor unit of coupled in series is an in-line.
3, sensor according to claim 1 is characterized in that: the sensor unit of coupled in series is for circular.
4, sensor according to claim 1 is characterized in that: the sensor unit of coupled in series is a rectangle.
5, sensor according to claim 1 is characterized in that: the sensor unit of coupled in series is a flute profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96215590 CN2266132Y (en) | 1996-07-18 | 1996-07-18 | Current transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96215590 CN2266132Y (en) | 1996-07-18 | 1996-07-18 | Current transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2266132Y true CN2266132Y (en) | 1997-10-29 |
Family
ID=33897335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96215590 Expired - Lifetime CN2266132Y (en) | 1996-07-18 | 1996-07-18 | Current transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2266132Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014012241A1 (en) * | 2012-07-17 | 2014-01-23 | Ning Wenyuan | Side-mounted current transform measuring structure and measuring method |
| CN104347258A (en) * | 2013-07-29 | 2015-02-11 | 北京瑞恒超高压电器研究所(普通合伙) | Insulated and error self-inspecting type full-intelligent current transformer |
-
1996
- 1996-07-18 CN CN 96215590 patent/CN2266132Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014012241A1 (en) * | 2012-07-17 | 2014-01-23 | Ning Wenyuan | Side-mounted current transform measuring structure and measuring method |
| CN104347258A (en) * | 2013-07-29 | 2015-02-11 | 北京瑞恒超高压电器研究所(普通合伙) | Insulated and error self-inspecting type full-intelligent current transformer |
| CN104347258B (en) * | 2013-07-29 | 2016-12-28 | 北京瑞恒超高压电器研究所(普通合伙) | A kind of insulation and error self-monitoring full Intelligent current transformer |
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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 | ||
| CX01 | Expiry of patent term |