CN205539100U - Ammeter case of preventing burglary - Google Patents
Ammeter case of preventing burglary Download PDFInfo
- Publication number
- CN205539100U CN205539100U CN201620221484.7U CN201620221484U CN205539100U CN 205539100 U CN205539100 U CN 205539100U CN 201620221484 U CN201620221484 U CN 201620221484U CN 205539100 U CN205539100 U CN 205539100U
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- ammeter
- detection module
- electricity
- magnetic field
- electric meter
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Abstract
The utility model provides an ammeter case of preventing burglary, includes ammeter case body and ammeter, ammeter case of preventing burglary includes detection module, detection module is used for detecting ammeter magnetic field on every side, when magnetic field intensity is greater than the default around the ammeter, the detection module alarm output signal, alarm module, alarm module be coupled in detection module works as worked when alarm module receives alarm signal, and set up detection module in ammeter case of preventing burglary, this detection module is used for detecting the ammeter magnetic field on every side of ammeter incasement, and when magnetic field intensity around the ammeter reachd the magnetic field intensity that can influence the normal work of ammeter, detection module exported alarm signal, works when alarm module receives alarm signal to remind power supply department staff to need to notice that this regional internal magnetic field intensity is great.
Description
Technical field
This utility model relates to ammeter box, particularly to a kind of electric meter box capable of preventing fraudulent use of electricity.
Background technology
Ammeter, also known as kilowatt-hour meter, is used to measure the instrument of electric energy, and at present, power supply department mainly carrys out the power consumption of metering user with intelligent electric meter, and the value passed by ammeter within equal time records and charges.
Notification number CN
Disclosing a kind of preventing fraudulent use of electricity counter box in 204832285 U, he proposes base plate and is arranged on box house, and case lid is installed together by hinge with casing, and hinge position is provided with total rotation and triggers switch；Single ammeter box is installed on base plate, single ammeter box is provided with a point rotation and triggers switch, always rotation triggers switch and is connected with a point rotation triggering switch, electronic monitoring room is installed below base plate, leakage switch and the e-platform of earth leakage protector and total binding post, the air switch threaded off with excitation is installed below electronic monitoring room, realize monitoring constantly unlatching and the closure state of meter cover, and ammeter box abnormal conditions are reported to the police, do not detect the device in magnetic field near ammeter, if ammeter meeting affected by magnetic fields makes ammeter slack-off (namely power stealing), this process will not damage the structure of ammeter so will not report to the police, to such an extent as to power supply department will not detect, if and ammeter box uses antimagnetic material to make, although the situation that can prevent this stealing electricity occurs, but the transmission of the signal of power supply department also can be affected.
Utility model content
The purpose of this utility model is to provide the ammeter box of a kind of preventing fraudulent use of electricity, can effectively prevent the impact on ammeter of the artificial magnetic signal, plays and prevents ammeter from running slack-off effect.
Above-mentioned purpose of the present utility model has the technical scheme that
A kind of electric meter box capable of preventing fraudulent use of electricity, including ammeter box body and ammeter, described electric meter box capable of preventing fraudulent use of electricity includes that detection module, described detection module are used for detecting ammeter surrounding magnetic field, when ammeter ambient magnetic field strength is more than preset value, described detection module output alarm signal；Alarm module, described alarm module is coupled to described detection module, works when described alarm module receives alarm signal.
By using such scheme, detection module is set in electric meter box capable of preventing fraudulent use of electricity, this detection module is for detecting the magnetic field around the ammeter in ammeter box, when ammeter ambient magnetic field strength arrives and can affect the magnetic field intensity that ammeter normally works, detection module output alarm signal, work when alarm module receives alarm signal, to remind power supply department staff it is noted that, this region internal magnetic field intensity is bigger.
As improvement of the present utility model, described detection module includes sampling unit, and described sampling unit is for detecting the magnetic field intensity in ammeter box, and magnetic signal is converted into signal of telecommunication output sampled voltage；Reference cell, described reference cell output reference voltage, described reference voltage is the magnetic field intensity of the marginal value that can affect ammeter work；Comparing unit, described comparing unit couples described sampling unit and reference cell, is used for comparing sampled voltage and reference voltage, the output alarm signal when sampling unit is more than reference voltage.
By using technique scheme, sampling unit is used for detecting ammeter ambient magnetic field strength, and this magnetic signal is converted into signal of telecommunication output, reference cell provides reference voltage, comparing unit compares sampled voltage and reference voltage, represent that when sampled voltage is more than reference voltage ambient magnetic field strength is relatively big, should be noted that and output alarm signal.
As improvement of the present utility model, described detection module also includes that delay unit, described delay unit are coupled to described comparing unit, when described delay unit receives alarm signal, described delay unit must establish beginning timing by cable, even if when time output alarm signal again after Preset Time.
By using technique scheme, start working when delay unit receives alarm signal, prevent the comparing unit reaction output high level signal owing to causing when pedestrian passes by with the article in magnetic field, when delay unit receives the alarm signal of persistence and through output alarm signal after a period of time.
As improvement of the present utility model, described sampling unit is set to Magnetic Sensor.
By using technique scheme, use Magnetic Sensor accurately the magnetic field near ammeter to be detected, and magnetic signal is converted into the signal of telecommunication exports.
As improvement of the present utility model, described Magnetic Sensor is installed in voltmeter.
By using technique scheme, Magnetic Sensor can be protected in Magnetic Sensor is placed on ammeter, by making detection structure the most accurate.
As improvement of the present utility model, described reference cell includes the first resistance and the second resistance being arranged in series, the node output reference voltage that described first resistance and the second resistance couple.
By using technique scheme, utilizing the node output reference voltage that the first resistance and the second resistance couple, the precision making the reference voltage of acquirement is higher, can also be adjusted the size of reference voltage by the resistance changing the first resistance and the second resistance simultaneously.
As improvement of the present utility model, described comparing unit is set to comparator, and the positive input terminal of described comparator couples described sampling unit, and the negative input end of described comparator couples reference cell.
By using technique scheme, using comparator to compare sampling unit and reference cell, owing to comparator is affected by magnetic fields less, institute is so that testing result is the most accurate.
As improvement of the present utility model, described delay unit includes that enumerator, the Enable Pin of described enumerator couple comparing unit.
By using technique scheme, when delay unit receives alarm signal, carry out timing by enumerator, make timing result the most accurate and time delay exports this alarm signal.
As improvement of the present utility model, described alarm module includes photographic head and relay, described photographic head is installed in the inner upper of ammeter box, and described relay coil couples the spilling end of described enumerator, and described relay normally open contact is controlled by described alarm signal Guan Bi.
By using technique scheme, when alarm module receives alarm signal, display screen normally opened contact and relay normally open contact all close, display screen and photographic head are all opened, this display screen is arranged on power supply department, and photographic head and display screen are all powered off under normal circumstances, by whether having exception in the photographic head of top watches ammeter box in ammeter box, simultaneously can also watch the model of ammeter by photographic head and determine is that the ammeter of those several clients is abnormal again, finally determines the need for sending people over here to check.
As improvement of the present utility model, described photographic head is arranged with protective cover.
By using technique scheme, photographic head is arranged with protective cover, plays the protective effect to photographic head.
In sum, this utility model has the advantages that and arranges detection module in electric meter box capable of preventing fraudulent use of electricity, this detection module is for detecting the magnetic field around the ammeter in ammeter box, when ammeter ambient magnetic field strength arrives and can affect the magnetic field intensity that ammeter normally works, detection module output alarm signal, work when alarm module receives alarm signal, to remind power supply department staff it is noted that, this region internal magnetic field intensity is bigger.
Accompanying drawing explanation
Fig. 1 is electric meter box capable of preventing fraudulent use of electricity structural representation；
Fig. 2 is detection module connection circuit figure；
Fig. 3 is photographic head connection circuit figure.
In figure, 1, Magnetic Sensor；2, photographic head；31, sampling unit；32, reference cell；33, comparing unit；34, delay unit；35, relay normally open contact；4, electric light.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
nullWith reference to shown in Fig. 1，A kind of electric meter box capable of preventing fraudulent use of electricity includes ammeter box body、Ammeter、Detection module and alarm module，Wherein alarm module includes that wherein detection module is coupled to alarm module，Wherein，Detection module includes Magnetic Sensor 1，This Magnetic Sensor 1 is arranged on inside ammeter，Magnetic field intensity in detecting ammeter box，Alarm module includes photographic head 2，This photographic head 2 is installed in the inner upper of ammeter box，When ammeter ambient magnetic field strength is high enough to affect ammeter work，Detection module output alarm signal，When alarm module receives alarm signal，Photographic head 2 obtains electric-opening，Simultaneously the display screen associated with photographic head 2 of power supply department also electric work，Photographic head 2 is additionally provided with an electric light 4，This electric light 4 is also controlled by alarm signal work，Staff is facilitated to observe，And formulate processing scheme，Due to photographic head 2 it is observed that the model of ammeter the model according to ammeter judge the user of that family，So conveniently adopting an effective measure，The situation avoiding stealing electricity occurs.
nullWith reference to shown in Fig. 2，Detection module includes sampling unit 31、Reference cell 32、Comparing unit 33 and delay unit 34，Sampling unit 31 is set to Magnetic Sensor 1，This Magnetic Sensor 1 is arranged in one ammeter，The most normal for detecting ammeter surrounding magnetic field，By the shell of ammeter, Magnetic Sensor 1 is played certain protection simultaneously，And the magnetic field intensity signal of surrounding is converted into the signal of telecommunication，Reference cell 32 includes the first resistance R1 and the second resistance R being arranged in series，The node output reference voltage that it couples，Wherein the second resistance R2 is adjustable resistance，Can according to different ammeters by magnetic force affected and regulated，Comparing unit 33 is set to comparator，Wherein the positive input terminal of comparator couples Magnetic Sensor 1，Negative input end couples reference cell 32，For benchmark voltage and sampled voltage，The output high level signal when sampled voltage is more than reference voltage，Delay unit 34 includes rectification、Filtering、Voltage stabilizing、Enumerator and relay coil，Owing to the running voltage of enumerator is DC voltage，So needing to pass through rectification、Filtering and voltage stabilizing are converted into 220 normal standard household AC electrical the direct-current working volts of the many needs of enumerator，When the Enable Pin of enumerator couples comparing unit 33，When comparing unit 33 exports high level signal，Enumerator starts timing，High level signal is exported after a Preset Time，During timing during comparator output level，Counter resets is not in timing，Prevent maloperation situation from occurring，When relay coil receives high level signal，Relay coil work output alarm signal.
With reference to shown in Fig. 3, when alarm module receives alarm signal, relay normally open contact 35 Guan Bi makes photographic head 2 work, and video pictures is transferred to power supply department, the most black in order to prevent, so on photographic head 2 electric light 4 in parallel, be used for illuminating, convenient relevant staff is convenient under more black annular to be observed.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Claims (9)
1. an electric meter box capable of preventing fraudulent use of electricity, including ammeter box body and ammeter, it is characterised in that: described electric meter box capable of preventing fraudulent use of electricity includes
Detection module, described detection module is used for detecting ammeter surrounding magnetic field, when ammeter ambient magnetic field strength is more than preset value, described detection module output alarm signal；
Alarm module, described alarm module is coupled to described detection module, works when described alarm module receives alarm signal；
Described detection module includes
Sampling unit (31), described sampling unit (31) is for detecting the magnetic field intensity in ammeter box, and magnetic signal is converted into signal of telecommunication output sampled voltage；
Reference cell (32), described reference cell (32) output reference voltage, described reference voltage is the magnetic field intensity of the marginal value that can affect ammeter work；
Comparing unit (33), described comparing unit (33) couples described sampling unit (31) and reference cell (32), for comparing sampled voltage and reference voltage, the output alarm signal when sampling unit (31) is more than reference voltage.
A kind of electric meter box capable of preventing fraudulent use of electricity the most according to claim 1, it is characterized in that: described detection module also includes delay unit (34), described delay unit (34) is coupled to described comparing unit (33), when described delay unit (34) receives alarm signal, described delay unit (34) must establish beginning timing by cable, even if when time output alarm signal again after Preset Time.
A kind of electric meter box capable of preventing fraudulent use of electricity the most according to claim 1, it is characterised in that: described sampling unit (31) is set to Magnetic Sensor (1).
A kind of electric meter box capable of preventing fraudulent use of electricity the most according to claim 3, it is characterised in that: described Magnetic Sensor (1) is installed in voltmeter.
A kind of electric meter box capable of preventing fraudulent use of electricity the most according to claim 1, it is characterised in that: described reference cell (32) includes the first resistance and the second resistance being arranged in series, the node output reference voltage that described first resistance and the second resistance couple.
6. according to any one described a kind of electric meter box capable of preventing fraudulent use of electricity of claim 2 to 5, it is characterized in that: described comparing unit (33) is set to comparator, the positive input terminal of described comparator couples described sampling unit (31), and the negative input end of described comparator couples reference cell (32).
A kind of electric meter box capable of preventing fraudulent use of electricity the most according to claim 2, it is characterised in that: described delay unit (34) includes that enumerator, the Enable Pin of described enumerator couple comparing unit (33).
A kind of electric meter box capable of preventing fraudulent use of electricity the most according to claim 7, it is characterized in that: described alarm module includes photographic head (2) and relay, described photographic head (2) is installed in the inner upper of ammeter box, described relay coil couples the spilling end of described enumerator, and described relay normally open contact (35) is controlled by described alarm signal Guan Bi.
A kind of electric meter box capable of preventing fraudulent use of electricity the most according to claim 8, it is characterised in that: described photographic head (2) is arranged with protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620221484.7U CN205539100U (en) | 2016-03-22 | 2016-03-22 | Ammeter case of preventing burglary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620221484.7U CN205539100U (en) | 2016-03-22 | 2016-03-22 | Ammeter case of preventing burglary |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539100U true CN205539100U (en) | 2016-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620221484.7U Expired - Fee Related CN205539100U (en) | 2016-03-22 | 2016-03-22 | Ammeter case of preventing burglary |
Country Status (1)
| Country | Link |
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| CN (1) | CN205539100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116073A (en) * | 2018-08-28 | 2019-01-01 | 云南电网有限责任公司电力科学研究院 | One kind is opposed electricity-stealing monitoring method, apparatus and system |
| WO2023184949A1 (en) * | 2022-03-28 | 2023-10-05 | 广东电网有限责任公司江门供电局 | Electromagnetic monitoring-based apparatus and method for monitoring hot plug module of distribution terminal |
-
2016
- 2016-03-22 CN CN201620221484.7U patent/CN205539100U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116073A (en) * | 2018-08-28 | 2019-01-01 | 云南电网有限责任公司电力科学研究院 | One kind is opposed electricity-stealing monitoring method, apparatus and system |
| WO2023184949A1 (en) * | 2022-03-28 | 2023-10-05 | 广东电网有限责任公司江门供电局 | Electromagnetic monitoring-based apparatus and method for monitoring hot plug module of distribution terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300100 Tianjin, Nankai District Nankai Road No. four, office building, room 12, 206 Patentee after: Tianjin Rong Sheng Polytron Technologies Inc Address before: 300100 Tianjin, Nankai District Nankai Road No. four, office building, room 12, 206 Patentee before: Tianjin Rongsheng Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20200322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |