CN202816640U - Current sampling linear transformer with digital output - Google Patents
Current sampling linear transformer with digital output Download PDFInfo
- Publication number
- CN202816640U CN202816640U CN201220457639.9U CN201220457639U CN202816640U CN 202816640 U CN202816640 U CN 202816640U CN 201220457639 U CN201220457639 U CN 201220457639U CN 202816640 U CN202816640 U CN 202816640U
- Authority
- CN
- China
- Prior art keywords
- iron core
- analog
- digital
- core shell
- shell
- 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
Links
Images
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model relates to a current sampling linear transformer with digital output and belongs to the technical field of electric equipment. The current sampling linear transformer with the digital output comprises an electromagnetic induction signal part and an analog-digital signal conversion part, wherein the electromagnetic induction signal part comprises an insulating iron core shell; an iron core, a secondary coil and an analog signal output wire are arranged on the iron core shell; the analog-digital signal conversion part comprises an analog-digital converter shell; an analog-digital converting module and a mounting pillar are fixedly arranged on the iron core shell; a display screen and a signal output port are arranged on the analog-digital converting module in a matching form; the iron core shell and the analog-digital converter shell are formed by one step; and the analog signal output wire is connected with the analog-digital converting module. According to the technology, the utility model provides the current sampling linear transformer with the digital output, which is conveniently used and mounted on site and is high in signal output quality; the current sampling linear transformer has strong anti-jamming capability for digital signal and excellent confidentiality; the conditions of signal interference and weakening and even the condition that no signal is received caused by overlong output line are avoided; and the current sampling linear transformer is suitable for popularization and application.
Description
Technical field
The utility model belongs to the electrification equipment technical field, is specifically related to the linear instrument transformer of current sample of the band numeral output that a kind of scene is easy to install and use, the signal output quality is high.
Background technology
In the epoch that country advocates energy-saving and emission-reduction, electric flux is always by one of concerned problem.Current transformer is a very important sampling transmission and monitoring access device in electrical network; in order to guarantee the power system security economical operation, need to carry out monitoring and measuring to power equipment, electricity consumption situation; but general measurement and protective device can not directly access high-tension apparatus No. one time; and the large electric current scaling transformation of primary system need to be become little electric current, supply with measuring instrument and protective device and use.When measuring the large electric current of alternating current, measure for ease of secondary meter and need to be converted to smaller electric current, directly to measure abnormally dangerously if the voltage in addition on the circuit is all higher, current transformer just plays sensing and electrical isolation effect.
Existing metering system is to go between outputting analog signal on measuring equipment and protective device, when two side output currents are several mA by instrument transformer two sides; because the antijamming capability of analog signal is weak, signal is along the various noise jamming that can be subject to the external world and communication system inside in the transmission course of circuit; after mixing, noise and signal be difficult to separately; thereby so that communication quality descends; and circuit is longer; the accumulation of noise is also just more, causes situations such as measuring inaccurate or protective device wrong report.
The utility model content
For the above-mentioned problems in the prior art, the purpose of this utility model is to provide the linear instrument transformer of current sample of the band numeral output that a kind of scene is easy to install and use, the signal output quality is high, strong, the good confidentiality of antijamming capability with digital signal avoids the signal that causes because outlet line is long weak even do not receive the situation of signal.
The linear instrument transformer of described a kind of current sample with numeral output, comprise electromagnetic induction signal part and modulus signal conversion portion, it is characterized in that described electromagnetic induction signal partly comprises the iron core shell of insulation, on the described iron core shell iron core is set, secondary coil and be used for to transmit the analog signal output wire of analog signal, described modulus signal conversion portion comprises analog to digital converter shell and the analog to digital converter cover plate that cooperatively interacts, in analog to digital converter shell and the analog to digital converter cover plate analog-to-digital conversion module is set, analog-to-digital conversion module is fixed by screws on the mounting column, described analog-to-digital conversion module is with the digital signal output end mouth, be equipped with display screen above the analog-to-digital conversion module, described iron core shell mould number converter shell connects, described analog signal output wire is connected with analog-to-digital conversion module, is equipped with on the described analog to digital converter shell for the visual windows of observing screen data.
The linear instrument transformer of described a kind of current sample with numeral output, it is characterized in that described iron core shell is made of two iron core shell I that are rotationally connected and iron core shell II, be equipped with iron core I and secondary coil I in the described iron core shell I, secondary coil I is evenly on the iron core I, iron core shell I one side is equipped with rotating shaft, opposite side is equipped with fastener, in the described iron core shell II iron core II and secondary coil II are set, evenly on the iron core II, the corresponding contraposition of iron core shell II arranges respectively the switch block that is equipped with rotating shaft and the draw-in groove that matches with fastener to the secondary coil II; Described analog signal output wire is arranged on the iron core shell II.
The linear instrument transformer of described a kind of current sample with numeral output is characterized in that described fastener comprises two symmetrically arranged buckles, is provided with spring between the buckle, and each buckle all is connected with button, and described button is arranged on the iron core shell I surface.
The linear instrument transformer of described a kind of current sample with numeral output is characterized in that described iron core I and iron core II are cirque structure.
The linear instrument transformer of described a kind of current sample with numeral output is characterized in that described analog to digital converter shell and iron core shell II single injection-molded.
The linear instrument transformer of described a kind of current sample with numeral output is characterized in that described display screen welding is arranged on above the analog-to-digital conversion module.
The linear instrument transformer of described a kind of current sample with numeral output, it is characterized in that described iron core shell I, fastener, button, and spring one-body molded in injection machine mould.
The linear instrument transformer of described a kind of current sample with numeral output is characterized in that being equipped with wiring hole on the described analog to digital converter cover plate, and the wire that is connected with analog-to-digital conversion module is installed on the wiring hole.
By adopting above-mentioned technology, compared with prior art, the beneficial effects of the utility model are as follows:
1) analog signal of the utility model induction is connected to analog-to-digital conversion module by the analog signal output wire, by analog-to-digital conversion module with analog signal conversion become digital signal, again by control module to digital signal carry out threshold voltage control, be encrypted process after output, solved because of line current sample little long Distance Transmission cause signal transmission quality poor, cause measuring inaccurate or protective device wrong report, the not high situation of confidentiality;
2) the utility model makes iron core shell I be connected with iron core shell II by rotating shaft, and in iron core shell and I and iron core shell II fastener and the draw-in groove that is used in conjunction with each other is set respectively, and by the button control fastener, make iron core shell I and iron core shell II closed or open, be easy to carry about with one, but also solved because inconvenient problem, easy disassembly are installed in field connection;
3) the utility model mainly comprise two insulation iron core shell I and iron core shell II, be located at the iron core enclosure and be used for faradic iron core, by rotating shaft and the fastener that connects two iron core shells two iron cores are formed closed magnetic field, easy to use, and be provided with button at the iron core shell, press the button iron core and can separate easy disassembly and simple to operate;
4) analog signal of the utility model induction is connected internally to analog-to-digital conversion module by the analog signal output wire, by analog-to-digital conversion module analog signal conversion is become digital signal, digital signal not only can be by signal output port and external measurement devices, watch-dog and protective device equipment connection, also can show direct computation and measurement result by display screen, be easy to observed data;
5) the utility model is by with iron core shell I, put into simultaneously injection machine mould with the fastener, button and the spring that are equipped with in iron core shell I, through one machine-shaping, the structure that obtains sealing is avoided the bad generation leaky of body seal, and its security performance is high;
6) the utility model can be crossed and adopt iron core shell II and be arranged on analog signal output wire one potting in the iron core shell II with the analog-to-digital conversion shell is integrally formed, the analog signal transmission distance of minimizing electromagnetic induction, it is little that its signal is disturbed, decay little, level security good.
7) the utility model is by the linear instrument transformer of current sample of the band numeral output adopting above-mentioned technology and obtain, it is simple in structure, the scene is easy to install and use, the signal output quality high, the antijamming capability of digital signal is strong, confidentiality might as well, avoid the signal that causes because outlet line is long weak even do not receive the situation of signal, be suitable for applying.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is induced signal part-structure schematic diagram of the present utility model;
Fig. 3 is signal conversion part separation structure schematic diagram of the present utility model.
Among the figure: 1-iron core shell, 101-iron core shell I, 102-iron core shell II, 2-button, the 3-mounting column, 4-display screen, 5-analog-to-digital conversion module, 6-analog to digital converter shell, 7-analog signal output wire, 8-analog to digital converter cover plate, 9-iron core I, 10-fastener, 11-draw-in groove, 12-iron core II, 13-wiring hole, 14-switch block, the 15-rotating shaft, 1601-secondary coil I, 1602 secondary coil II.
Embodiment
The utility model will be further described below in conjunction with Figure of description:
As Figure 1-3, the linear instrument transformer of a kind of current sample with numeral output, comprise electromagnetic induction signal part and analog-to-digital conversion part, described electromagnetic induction signal partly comprises the iron core shell 1 of insulation, described iron core shell 1 can be circle, square or other similar structures, the utility model is preferably mode circular and square combination, iron core shell 1 is made of the iron core shell I 101 of two annulars that are rotationally connected and square iron core shell II 102, be equipped with iron core I 9 in the described iron core shell I 101, secondary coil I 1601, a side is equipped with rotating shaft 15 on the iron core shell I 101, opposite side is equipped with fastener 10, be equipped with the iron core II 12 that cooperates the formation closure with iron core I 9 in the described iron core shell II 102, on iron core II 12, the corresponding contraposition of iron core shell II 102 arranges respectively the switch block 14 that is equipped with rotating shaft 15 and the draw-in groove 11 that matches with fastener 10 to secondary coil II 1602 uniformly; Described analog signal output wire 7 is arranged on the iron core shell II 102; described Analog to Digital Converter section is divided and is comprised analog to digital converter shell 6; analog to digital converter cover plate 8; in the space that analog to digital converter shell 6 and analog to digital converter cover plate 8 form analog-to-digital conversion module 5 is set; analog-to-digital conversion module 5 is fixed by screws on the mounting column 3; described analog-to-digital conversion module 5 is with the digital signal output end mouth; be equipped with wiring hole 13 on the analog to digital converter cover plate 8; the wire that is connected with digital signal output end mouth on the analog-to-digital conversion module 5 is installed, with external measurement devices on the wiring hole 13; the equipment connection such as watch-dog or protective device.
Be equipped with display screen 4 below the analog-to-digital conversion module 5, described iron core shell II 102 is connected with 6 one-shot formings of analog to digital converter shell, described analog signal output wire 7 is connected with analog-to-digital conversion module 5, be equipped with for the visual windows of observing display screen 4 data the direct data message in the read screen from can window on the described analog to digital converter shell 6.
As shown in Figure 2, iron core shell 1 is made of iron core shell I 101 and the iron core shell II 102 of two annulars that are rotationally connected, be equipped with iron core I 9, secondary coil I 1601 in the described iron core shell I 101, a side is equipped with rotating shaft 15 on the iron core shell I 101, opposite side is equipped with fastener 10, be equipped with iron core II 12 in the described iron core shell II 102, on iron core II 12, the corresponding contraposition of iron core shell II 102 arranges respectively the switch block 14 that is equipped with rotating shaft 15 and the draw-in groove 11 that matches with fastener 10 to secondary coil II 1602 uniformly; Described analog signal output wire 7 is arranged on the iron core shell II 102, described fastener 10 is arranged on iron core shell I 101 contact-making surfaces that contact with iron core shell II 102, it comprises two symmetrically arranged buckles, buckle is the connector with lug, be provided with spring between the buckle, each buckle all is connected with button 2, described button 2 is arranged on iron core shell I about in the of 101 on two surfaces, during use, by pressing the button 2, two buckles are shunk to the centre, snap in the draw-in groove 11 of iron core shell II 102, this moment, spring was compressed, after snapping in, under the effect of spring force, buckle unclamps to both sides respectively, be stuck in the draw-in groove 11 by lug, make iron core shell I 101 and iron core shell II 102 closures, in order to improve sealing property, the utility model is with iron core shell I 101, and fastener 10 disposed thereon, button 2 and spring are one-body molded in injection machine mould, in order to increase the stability of instrument transformer, the base of described analog to digital converter strengthens, and becomes up-small and down-big structure.
As shown in Figure 2, described analog to digital converter shell 6 adopts an injection molded for increasing sealing with fastness with iron core shell II 102.
The linear instrument transformer of current sample of the present utility model, its processing technology step:
Electromagnetic induction signal part: first iron core I 9 and iron core II 12 are processed into respectively two semicircles, secondary coil I 1601 uniform winding are on iron core I 9, secondary coil II 1602 is uniformly on iron core II 12, with analog signal output wire 7 and secondary coil I 1601, secondary coil II 1602 is connected, utilization will be processed into two semicircular iron cores that wind secondary coil and analog signal output wires and be put in the injection machine mould and iron core shell I 101, iron core shell II 102, knob 2, fastener 10 is integrally formed, integrally formedly avoid the bad electric leakage of body seal to occur, two iron core shells that will process again are by the combination of switch block 14 with rotating shaft 15, connect together, carry out folding, easy disassembly by rotating shaft 2 and buckle 10.
The modulus signal conversion portion: utilize advanced mount technology that analog-to-digital conversion module 5 is processed, analog signal output wire 7, display screen 4 is welded on the analog-to-digital conversion module 5 again, analog-to-digital conversion module 5 utilizes screw to be fixed on the mounting column 3 and is positioned at analog to digital converter shell 6 and the space of analog to digital converter cover plate 8 formation.
As shown in Figure 1, iron core shell II 102 of the present utility model and analog to digital converter shell 6 disposable injection moldeds, the electromagnetic induction signal part closely is connected with the modulus signal conversion portion.
The course of work of the present utility model is: by rotating shaft and the fastener that connects two iron core shells two iron cores are formed closed magnetic field; utilize electromagnetism to interact; be connected to analog-to-digital conversion module 5 by secondary coil and analog signal output wire 7 again; convert signal to digital signal by analog-to-digital conversion module 5; digital signal can be by signal output port and external measurement devices; the equipment connection such as watch-dog or protective device; also can show direct computation and measurement result by display screen 4, read this result the visual windows from analog to digital converter shell 6.
Claims (8)
1. linear instrument transformer of the current sample with numeral output, comprise electromagnetic induction signal part and modulus signal conversion portion, it is characterized in that described electromagnetic induction signal partly comprises the iron core shell (1) of insulation, iron core (9) is set on the described iron core shell (1), secondary coil and be used for to transmit the analog signal output wire (7) of analog signal, described modulus signal conversion portion comprises the analog to digital converter shell (6) and analog to digital converter cover plate (8) that cooperatively interacts, in analog to digital converter shell (6) and the analog to digital converter cover plate (8) analog-to-digital conversion module (5) is set, analog-to-digital conversion module (5) is fixed by screws on the mounting column (3), described analog-to-digital conversion module (5) is with the digital signal output end mouth, be equipped with display screen (4) above the analog-to-digital conversion module (5), described iron core shell (1) analog to digital converter shell (6) connects, described analog signal output wire (7) is connected with analog-to-digital conversion module (5), is equipped with on the described analog to digital converter shell (6) for the visual windows of observing display screen (4) data.
2. according to claim 1 a kind of with the linear instrument transformer of the digital current sample of exporting, it is characterized in that described iron core shell (1) is made of two iron core shell I (101) that are rotationally connected and iron core shell II (102), be equipped with iron core I (9) and secondary coil I (1601) in the described iron core shell I (101), secondary coil I(1601) evenly on iron core I (9), iron core shell I (101) one sides are equipped with rotating shaft (15), opposite side is equipped with fastener (10), iron core II (12) and secondary coil II (1602) are set in the described iron core shell II (102), evenly on iron core II (12), the corresponding contraposition of iron core shell II (102) arranges respectively the switch block (14) that is equipped with rotating shaft (15) and the draw-in groove (11) that matches with fastener (10) to secondary coil II (1602); Described analog signal output wire (7) is arranged on the iron core shell II (102).
3. according to claim 2 a kind of with the linear instrument transformer of the digital current sample of exporting, it is characterized in that described fastener (10) comprises two symmetrically arranged buckles, be provided with spring between the buckle, each buckle all is connected with button (2), and described button (2) is arranged on iron core shell I (101) surface.
4. the linear instrument transformer of a kind of current sample with numeral output according to claim 2 is characterized in that described iron core I(9) and iron core II(12) be cirque structure.
5. the linear instrument transformer of a kind of current sample with numeral output according to claim 2 is characterized in that described analog to digital converter shell (6) and iron core shell II (102) single injection-molded.
6. the linear instrument transformer of a kind of current sample with numeral output according to claim 1 is characterized in that described display screen (4) welding is arranged on above the analog-to-digital conversion module (5).
7. the linear instrument transformer of a kind of current sample with numeral output according to claim 3, it is characterized in that described iron core shell I (101), fastener (10), button (2), and spring one-body molded in injection machine mould.
8. according to claim 1 a kind of with the linear instrument transformer of the digital current sample of exporting, it is characterized in that being equipped with on the described analog to digital converter cover plate (8) wiring hole (13), the upper wire that is connected with analog-to-digital conversion module (5) of installing of wiring hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220457639.9U CN202816640U (en) | 2012-09-10 | 2012-09-10 | Current sampling linear transformer with digital output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220457639.9U CN202816640U (en) | 2012-09-10 | 2012-09-10 | Current sampling linear transformer with digital output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816640U true CN202816640U (en) | 2013-03-20 |
Family
ID=47875485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220457639.9U Expired - Lifetime CN202816640U (en) | 2012-09-10 | 2012-09-10 | Current sampling linear transformer with digital output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816640U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800472A (en) * | 2012-09-10 | 2012-11-28 | 嘉兴市国科京禾电子有限公司 | Current sampling linear mutual inductor with digital output |
| CN110857950A (en) * | 2018-08-22 | 2020-03-03 | 力诚仪器股份有限公司 | Current sensing module for current sensor and manufacturing method thereof |
-
2012
- 2012-09-10 CN CN201220457639.9U patent/CN202816640U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800472A (en) * | 2012-09-10 | 2012-11-28 | 嘉兴市国科京禾电子有限公司 | Current sampling linear mutual inductor with digital output |
| CN102800472B (en) * | 2012-09-10 | 2013-09-18 | 嘉兴市国科京禾电子有限公司 | Current sampling linear mutual inductor with digital output |
| CN110857950A (en) * | 2018-08-22 | 2020-03-03 | 力诚仪器股份有限公司 | Current sensing module for current sensor and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201247294Y (en) | Synthesis on-line automatization monitoring system for transformer substation | |
| CN203085344U (en) | Integrated digital current transformer | |
| CN203881834U (en) | AC-DC current wireless monitoring equipment | |
| CN202816640U (en) | Current sampling linear transformer with digital output | |
| CN201229210Y (en) | Wireless temperature acquisition machine for switch cubicle | |
| CN206038740U (en) | GIS uses and all -fiber current transformer thereof | |
| CN102800472B (en) | Current sampling linear mutual inductor with digital output | |
| CN102226973B (en) | Electronic voltage transformer with temperature-measuring device | |
| CN101571553B (en) | Minitype high-voltage electric energy meter directly arranged in 10KV power supply circuit | |
| CN203012074U (en) | Overhead terminal capable of being installed and maintained conveniently | |
| CN211741529U (en) | High tension switchgear insulator leakage current on-line monitoring device | |
| CN212967520U (en) | Novel pole-mounted circuit breaker | |
| CN114242509A (en) | Breaker on deep fusion column | |
| CN102208270B (en) | Electronic current transformer with temperature measurement device | |
| CN201994174U (en) | Electronic voltage transformer with temperature measuring device | |
| CN203014490U (en) | Intelligent monitor of transformer substation | |
| CN201732116U (en) | High-voltage charged display | |
| CN102221413B (en) | Electronic current voltage combined type mutual inductor with temperature measuring apparatus | |
| CN206892162U (en) | A kind of buckle-type transformer based on MCU controllers | |
| CN2929927Y (en) | Transformer integrated outdoor dry type totally-enclosed three-phase current transformer | |
| CN205898887U (en) | Intelligence mutual -inductor | |
| CN110632373A (en) | Integrated intelligent low-voltage line monitoring device | |
| CN111354539A (en) | Indoor three-phase electronic current transformer | |
| CN202034234U (en) | Electronic current and voltage combined transformer with temperature measuring device | |
| CN201340783Y (en) | Measured type transformer conducting pole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG JINGHE ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIAXING GUOKE JINGHE ELECTRON CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 314000 Tsinghua Research Institute of Yangtze River Delta, No. 705 Asia Pacific Road, Zhejiang, Jiaxing 16F Patentee after: ZHEJIANG JINGHE ELECTRONIC TECHNOLOGY CO.,LTD. Address before: 314000 Tsinghua Research Institute of Yangtze River Delta, No. 705 Asia Pacific Road, Zhejiang, Jiaxing 16F Patentee before: JIANGXING GUOKE JINGHE ELECTRONIC Co.,Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160323 Granted publication date: 20130320 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jiaxing science and Technology Branch Pledgor: ZHEJIANG JINGHE ELECTRONIC TECHNOLOGY CO.,LTD. Registration number: 2015990000169 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Current sampling linear mutual inductor with digital output Effective date of registration: 20160323 Granted publication date: 20130320 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jiaxing science and Technology Branch Pledgor: ZHEJIANG JINGHE ELECTRONIC TECHNOLOGY CO.,LTD. Registration number: 2016990000231 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20160323 Registration number: 2015990000169 Pledgee after: Agricultural Bank of China Limited by Share Ltd. Jiaxing science and Technology Branch Pledgee before: The Agricultural Bank of Jiaxing branch of Limited by Share Ltd. China garshin |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 314300 308 rooms, No. 382, No. 382, Asia Pacific Road, Nanhu District, Zhejiang Patentee after: ZHEJIANG JINGHE ELECTRONIC TECHNOLOGY CO.,LTD. Address before: 314000 Tsinghua Research Institute of Yangtze River Delta, No. 705 Asia Pacific Road, Zhejiang, Jiaxing 16F Patentee before: ZHEJIANG JINGHE ELECTRONIC TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |