CN204065199U - A kind of intelligent electric energy meter of output of reporting to the police with strong magnetic induction on-load switch - Google Patents
A kind of intelligent electric energy meter of output of reporting to the police with strong magnetic induction on-load switch Download PDFInfo
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- CN204065199U CN204065199U CN201420404581.0U CN201420404581U CN204065199U CN 204065199 U CN204065199 U CN 204065199U CN 201420404581 U CN201420404581 U CN 201420404581U CN 204065199 U CN204065199 U CN 204065199U
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- magnetic field
- electric energy
- control system
- energy meter
- load switch
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- 230000006698 induction Effects 0.000 title claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 102100038591 Endothelial cell-selective adhesion molecule Human genes 0.000 claims abstract description 4
- 101000882622 Homo sapiens Endothelial cell-selective adhesion molecule Proteins 0.000 claims abstract description 4
- 230000005856 abnormality Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000008447 perception Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 description 10
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The utility model discloses a kind of intelligent electric energy meter of output of reporting to the police with strong magnetic induction on-load switch, comprise MCU control system, the memory circuit, key circuit, communicating circuit, power supply abnormality detection circuit, display circuit, ESAM safety chip, metering module and the on-load switch that are electrically connected with described MCU control system respectively.When electric energy meter is in magnetic field environment, the detection signal size that the magnetic field detection module in electric energy meter exports according to magnetic field detection module confirms current magnetic field intensity, is completed operate a switch accordingly or feed motion by the associated components in MCU control system control overhead switch.
Description
Technical field
The utility model relates to a kind of intelligent electric energy meter of output of reporting to the police with strong magnetic induction on-load switch.
Background technology
At present, electronic type intelligent electric energy meter has live wire current sample and neutral line current sampling functions, and the electric energy meter meeting this function generally uses manganese copper diverter as live wire current sampling devices.Because single-phase intelligent electric energy meter is not high to neutral line current sampling request, adopt the current transformer that precision is not high as zero line sampling element so general.The manganese copper diverter Sampling device of current use, as sampling live part, has two extension lines as sampled point sampling spot, carries out signal sampling.Copper-manganese is flat, and long limit is drawn.Current this copper-manganese and outlet method are due to its intrinsic eddy current, electromagnetic induction characteristic, cause and disturb at strong external magnetic field, when particularly with frequency homophase magnetic interference, a undesired signal superimposed with actual samples electric current can be produced, cause the inaccurate of sampling, the result of impact sampling, owing to using single-phase electric energy meter in a large number in electrical network, there is similar interference source in a large number in the installation environment of electric energy meter, cause the improper metering of electric energy meter under user does not have electricity consumption situation and the error change in normal electricity consumption situation.
Guo Wang company promotes intelligent electric energy meter company standard for 2009 over nearly 5 years, in application process, some quality problems are exposed, the hidden danger such as not strong in unloaded shunt running, overvoltage blank screen, electromagnetic interference capability, in addition along with electricity filching means is constantly to specialty, technicalization development, utilize the defect of the built-in on-load switch of electric energy meter (adopting magnetic latching relay) to strong magnetic interference ability to carry out stealing by force more.The utility model mainly solves the on-load switch when strong magnetic interference and has output of reporting to the police, and intelligent meter obtains this information and feeds back to management of power use department in time by active reporting function, and administrative authority can not obtain information in time due to long-term stealing can to avoid user.
Utility model content
The utility model object is the intelligent electric energy meter that the defect existed for prior art provides a kind of output of reporting to the police with strong magnetic induction on-load switch.
The utility model for achieving the above object, adopt following technical scheme: a kind of intelligent electric energy meter of output of reporting to the police with strong magnetic induction on-load switch, comprise MCU control system, the memory circuit, key circuit, communicating circuit, power supply abnormality detection circuit, display circuit, ESAM safety chip, metering module and the on-load switch that are electrically connected with described MCU control system respectively; Described on-load switch comprises housing, is provided with coil block in described housing, and the input end of described coil block is connected with the connection terminal be arranged on housing, and its output terminal is connected with magnet steel; The output terminal of described magnet steel is provided with yoke, and the output terminal of described yoke is provided with push card, and described push card can drive moving contact to engage with stationary contact; Wherein, the end of described push card also can be connected on the touch-switch that arranges above described stationary contact, described touch-switch be used for moving contact described in perception disconnect and closed time time of day, and feed back to MCU control system by described connection terminal; Also be provided with the magnetic field detection module for detecting its external magnetic field strength in described housing, the external magnetic field signal detected is passed to MCU control system by connection terminal by described magnetic field detection module.
The beneficial effects of the utility model: when electric energy meter is in magnetic field environment, the detection signal size that magnetic field detection module in electric energy meter exports according to magnetic field detection module confirms current magnetic field intensity, is completed operate a switch accordingly or feed motion by the associated components in MCU control system control overhead switch; When residing for electric energy meter, external disturbing field intensity reaches a certain amount of, whether electric energy meter combined magnetic field intensity and control overhead switch command state be normal according to often the opening of contact in on-load switch, operating state that normally closed amount can judge on-load switch.The touch-switch arranged in on-load switch can the virtual condition of accurate feedback moving contact, and when not delaying work by the artificial interference of external cabling or relay, the contacts status of mistake judges.
Accompanying drawing explanation
Fig. 1 electric energy meter schematic diagram of the function of the present utility model.
The structural representation of Fig. 2 on-load switch of the present utility model.
Embodiment
Shown in Fig. 1, Fig. 2, relate to a kind of intelligent electric energy meter of output of reporting to the police with strong magnetic induction on-load switch, comprise MCU control system, the memory circuit, key circuit, communicating circuit, power supply abnormality detection circuit, display circuit, ESAM safety chip, metering module and the on-load switch that are electrically connected with described MCU control system respectively; Described on-load switch comprises housing 10, is provided with coil block 1 in described housing 10, and the input end of described coil block 1 is connected with the connection terminal 9 arranged on the housing 10, and its output terminal is connected with magnet steel 2; Described magnet steel 2 output terminal is provided with yoke 3, and the output terminal of described yoke 3 is provided with push card 4, and described push card 4 can drive moving contact 5 to engage with stationary contact 7; Wherein, the end of described push card 4 also can be connected on the touch-switch 6 of setting above described stationary contact 7, described touch-switch 6 for moving contact described in perception 5 disconnect and closed time time of day, and feed back to MCU control system by described connection terminal 9; Also be provided with the magnetic field detection module 8 for detecting its external magnetic field strength in described housing 10, the external magnetic field signal detected is passed to MCU control system by connection terminal 9 by described magnetic field detection module 8.
Its principle of work: when electric energy meter is in magnetic field environment, the external magnetic field strength signal magnitude that MCU control system in electric energy meter can detect according to magnetic field detection module 8 is to confirm current magnetic field intensity, and by driving circuit drive coil 1, then magnetized to magnet steel 2 by the coil 1 be energized, drive yoke 3 to rotate again, finally drive push card 4 to control moving contact 5 by yoke 3 and complete the process disconnecting and close.In push card 4 motion process, if external magnetic field interference reaches more than 300mT, when causing on-load switch to have a misoperation, touch-switch 6 can the perception now disconnection of moving contact and closed time of day, and export an alerting signal, feed back to MCU control system by connection terminal 9.Meanwhile, built-in magnetic field detection module 8 also can pass to MCU control system by connection terminal 9 the simulating signal amount in magnetic field according to the power of external magnetic field.Like this, just can judge that whether on-load switch operating state is normal according to the contact normally-open normally-close amount in on-load switch.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (1)
1. the intelligent electric energy meter of a band strong magnetic induction on-load switch warning output, it is characterized in that, comprise MCU control system, the memory circuit, key circuit, communicating circuit, power supply abnormality detection circuit, display circuit, ESAM safety chip, metering module and the on-load switch that are electrically connected with described MCU control system respectively; Described on-load switch comprises housing, is provided with coil block in described housing, and the input end of described coil block is connected with the connection terminal be arranged on housing, and its output terminal is connected with magnet steel; The output terminal of described magnet steel is provided with yoke, and the output terminal of described yoke is provided with push card, and described push card can drive moving contact to engage with stationary contact; Wherein, the end of described push card also can be connected on the touch-switch that arranges above described stationary contact, described touch-switch be used for moving contact described in perception disconnect and closed time time of day, and feed back to MCU control system by described connection terminal; Also be provided with the magnetic field detection module for detecting its external magnetic field strength in described housing, the external magnetic field signal detected is passed to MCU control system by connection terminal by described magnetic field detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420404581.0U CN204065199U (en) | 2014-07-21 | 2014-07-21 | A kind of intelligent electric energy meter of output of reporting to the police with strong magnetic induction on-load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420404581.0U CN204065199U (en) | 2014-07-21 | 2014-07-21 | A kind of intelligent electric energy meter of output of reporting to the police with strong magnetic induction on-load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204065199U true CN204065199U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420404581.0U Expired - Lifetime CN204065199U (en) | 2014-07-21 | 2014-07-21 | A kind of intelligent electric energy meter of output of reporting to the police with strong magnetic induction on-load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204065199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133091A (en) * | 2014-07-21 | 2014-11-05 | 江阴长仪集团有限公司 | Intelligent ammeter with high magnetic induction load switch alarm output |
-
2014
- 2014-07-21 CN CN201420404581.0U patent/CN204065199U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133091A (en) * | 2014-07-21 | 2014-11-05 | 江阴长仪集团有限公司 | Intelligent ammeter with high magnetic induction load switch alarm output |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Intelligent ammeter with high magnetic induction load switch alarm output Effective date of registration: 20190517 Granted publication date: 20141231 Pledgee: Bank of Suzhou Limited by Share Ltd. Wuxi branch Pledgor: JIANGYIN CHANGYI GROUP CO.,LTD. Registration number: 2019320010021 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |
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| CX01 | Expiry of patent term |