CN201047855Y - Anti-strong magnetic attack device for electric meter - Google Patents
Anti-strong magnetic attack device for electric meter Download PDFInfo
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- CN201047855Y CN201047855Y CNU2007201100835U CN200720110083U CN201047855Y CN 201047855 Y CN201047855 Y CN 201047855Y CN U2007201100835 U CNU2007201100835 U CN U2007201100835U CN 200720110083 U CN200720110083 U CN 200720110083U CN 201047855 Y CN201047855 Y CN 201047855Y
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- hour meter
- magnetic
- watt
- ampere
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Abstract
The utility model relates to a ferromagnetic-attack prevention device used for an ampere-hour meter, which comprises a magnetic shielded layer which covers the surface of the ampere-hour meter, and a strong magnetic alarm device which is arranged on the ampere-hour meter. The magnetic shielded layer adopts amorphous/millimicron crystal material, the saturable magnetic induction density B s of the magnetic shielded layer is higher than 1.5 T, the magnetic coercive force H c is less than 10 A / m, the leakage magnetic flux density M is less than 0 .25 T, thereby having a strong magnetic function. The strong magnetic alarm device consists of a magnetic induction circuit, a sound alarm circuit which is connected with the magnetic induction circuit, a light emitting diode, and a reset circuit which is connected with the light emitting diode. Once a strong magnet approaches the ampere-hour meter, the device can send out loud alarm sound and lighten the light emitting diode, can show that the ampere-hour meter is in a state of improper electricity using, can remind people that a strong magnet approaches the ampere-hour meter, and then can effectively prevent the electricity-stolen actions, and can avoid the energy loss. On the other hand, the device ensures that the ampere-hour meter is not affected when strong magnetic material approaches the ampere-hour meter, the ampere-hour meter can still keep proper operation, and the electricity-stolen phenomenon can be effectively stopped.
Description
Technical field
The utility model belongs to the watt-hour meter field, relates in particular to a kind of watt-hour meter with preventing the intensive magnetism attack device.
Background technology
Watt-hour meter is the most important equipment that is used for electric energy metrical, and the watt-hour meter number of degrees are power department is collected unique foundations from the electricity charge to the user.Therefore, the user who has hands over or does not pay tariff and juggle things on watt-hour meter for few, to reach the purpose of stealing.Stealing is a very stubborn problem for power department, how to prevent or the generation that reduces stealing also is the important topic that relevant departments are studied always.A kind of important form of stealing is that there is bigger influence in tetanic stream magnetic field to the electric energy meter of induction type electric energy meter and pulse step motor with the magnetic field stealing of tetanic stream, and the serious watt-hour meter that will make stops walking.Therefore,, install the protective device of anti-intensive magnetism attack etc. additional, can effectively avoid the generation of stealing if watt-hour meter is taked the D.C. magnetic field shielding measure.
Summary of the invention
The utility model mainly solve present watt-hour meter can not avoid strong magnetic interference, easily by the technical matters of stealing; Provide a kind of and can effectively stop strong magnetic interference, guarantee that watt-hour meter safety normally moves, the watt-hour meter of stopping stealing electricity phenomenon is with anti-intensive magnetism attack device.
The utility model solves does not simultaneously have the technical matters of warning function when present watt-hour meter is subjected to strong magnetic interference; Provide a kind of watt-hour meter of alerting signal that when being subjected to strong magnetic interference, can send with preventing the intensive magnetism attack device.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the utility model watt-hour meter comprises one deck magnetic masking layer that is located at the watt-hour meter surface with anti-intensive magnetism attack device.Magnetic masking layer on the watt-hour meter surface coverage, when ferromagnetic material during near watt-hour meter, ferromagnetic material can not exert an influence to watt-hour meter, guarantees that watt-hour meter still can normally move, thereby effectively stops stealing electricity phenomenon.
As preferably, the saturation induction density Bs of described magnetic masking layer＞1.5T, coercivity H＜10A/m, leakage flux density M＜0.25T.This magnetic masking layer has good demagnetization performance, to reduce the magnetization of magnetic field to shielding material, can prevent the repeatedly attack of D.C. magnetic field.
As preferably, described magnetic masking layer adopt amorphous nanocrystalline material.Materials processing is good, is easy to make different shape.Utilize flash set technology preparation amorphous nanocrystalline magnetic shielding material because atom has little time orderly arrangement when alloy graining, the solid alloy atomic structure that obtains is the unordered nonequilibrium condition of long-range.This class material is different from human alloy and the metal of being familiar with for thousands of years fully on micromechanism, thereby a series of new macroscopic properties and excellent usability are arranged.Because composition and nonequilibrium state structure, this class material has many particular performances, as excellent magnetism energy, high Bs, high μ, low Hc etc.Be particularly suitable for the shielding of direct current high-intensity magnetic field.
As preferably, described watt-hour meter also comprises the strong magnetic warning device of being located on the watt-hour meter, the audible alarm circuit that described strong magnetic warning device comprises magnetic conduction circuitry and is attached thereto with anti-intensive magnetism attack device.During near watt-hour meter, magnetic conduction circuitry can output signal to the audible alarm circuit, sends chimes of doom as ferromagnetic material, and reminds people has kicker magnet near watt-hour meter, thereby stops electricity filching behavior.If kicker magnet is not withdrawn, chimes of doom can not stop; After withdrawing the kicker magnet attack source, just stop to report to the police.
As preferably, described audible alarm circuit is voice alarm circuit or hummer.Voice alarm circuit can be sent languages such as " kicker magnet being arranged near watt-hour meter ", and hummer can emit a shrill cry, and the sound of hummer is greater than 50dB.
As preferably, also be connected with light emitting diode on the described magnetic conduction circuitry, be connected with reset circuit on the light emitting diode.During near watt-hour meter, magnetic conduction circuitry can output signal be lighted light emitting diode as ferromagnetic material, and the expression watt-hour meter is in the improper electricity condition of using.No matter whether withdraw in the intensive magnetism attack source, at light emitting diode Chang Liang Ex ante not.Withdraw the kicker magnet attack source, press the reset key of reset circuit, light emitting diode goes out.
The beneficial effects of the utility model are: on watt-hour meter, cover last layer have excellent magnetism can amorphous nanocrystalline magnetic shielding material, guaranteeing can not influence watt-hour meter when ferromagnetic material during near watt-hour meter, watt-hour meter still can continue normal operation, effectively stops stealing electricity phenomenon.On the other hand, have the strong magnetic warning device of sound and light of alarm,, show that watt-hour meter is in the improper electricity condition of using in case when strong magnetic is arranged near watt-hour meter, will send loud chimes of doom and light light emitting diode.If does not withdraw in the intensive magnetism attack source, chimes of doom can not disappear.No matter whether withdraw in the intensive magnetism attack source, at light emitting diode Chang Liang Ex ante not.Reminds people has kicker magnet near watt-hour meter, thereby effectively stops electricity filching behavior, avoids the loss of the energy.
Description of drawings
Fig. 1 is that the utility model is installed to a kind of structural representation on the watt-hour meter.
Fig. 2 is a kind of structural representation of strong magnetic warning device in the utility model.
Fig. 3 is that a kind of circuit of strong magnetic warning device connects block diagram in the utility model.
1. magnetic masking layers among the figure, 2. watt-hour meter, 3. magnetic conduction circuitry, 4. audible alarm circuit, 4-1. hummer, 5. light emitting diode, 6. reset circuit, 6-1. reset key.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the watt-hour meter of present embodiment is with anti-intensive magnetism attack device, as shown in Figure 1, comprises one deck magnetic masking layer 1 that covers watt-hour meter 2 surfaces and is installed on strong magnetic warning device on the watt-hour meter 2.Magnetic masking layer 1 adopt amorphous nanocrystalline material, its saturation induction density Bs＞1.5T, coercivity H＜10A/m, leakage flux density M＜0.25T has the excellent magnetism energy.As Fig. 2, shown in Figure 3, audible alarm circuit 4, light emitting diode 5 that strong magnetic warning device comprises magnetic conduction circuitry 3 and is attached thereto also are connected with reset circuit 6 on the light emitting diode 5.Audible alarm circuit 4 is hummer 4-1 in the present embodiment.
In case when ferromagnetic material was arranged near watt-hour meter 2, hummer 4-1 will send loud birdie, sound is lighted light emitting diode 5 simultaneously greater than 50dB, and the reminds people watt-hour meter is in the improper electricity condition of using.If does not withdraw in the intensive magnetism attack source, chimes of doom can not disappear.No matter whether withdraw in the intensive magnetism attack source, at light emitting diode Chang Liang Ex ante not.Reminds people has kicker magnet near watt-hour meter, thereby effectively stops electricity filching behavior.Withdraw strong magnetic source, press the reset key 6-1 of reset circuit 6, light emitting diode 5 goes out.Since watt-hour meter covered outward one deck by amorphous the magnetic masking layer 1 made of nanocrystalline material, ferromagnetic material is during near watt-hour meter, can not exert an influence to watt-hour meter, guarantee that watt-hour meter still can normally move, thereby effectively stop stealing electricity phenomenon, both guaranteed that watt-hour meter was not damaged, guaranteed again that electric energy can not run off easily.
Claims (6)
1. a watt-hour meter is characterized in that comprising one deck magnetic masking layer (1) that is located at watt-hour meter (2) surface with anti-intensive magnetism attack device.
2. watt-hour meter according to claim 1 is characterized in that the saturation induction density Bs＞1.5T of described magnetic masking layer (1), coercivity H＜10A/m, leakage flux density M＜0.25T with preventing the intensive magnetism attack device.
3. watt-hour meter according to claim 1 and 2 is with anti-intensive magnetism attack device, it is characterized in that described magnetic masking layer (1) adopt amorphous nanocrystalline material.
4. watt-hour meter according to claim 1 is characterized in that also comprising the strong magnetic warning device of being located on the watt-hour meter (2), the audible alarm circuit (4) that described strong magnetic warning device comprises magnetic conduction circuitry (3) and is attached thereto with anti-intensive magnetism attack device.
5. watt-hour meter according to claim 4 is characterized in that with anti-intensive magnetism attack device described audible alarm circuit (4) is voice alarm circuit or hummer.
6. watt-hour meter according to claim 4 is characterized in that also being connected with light emitting diode (5) on the described magnetic conduction circuitry (3) with anti-intensive magnetism attack device, is connected with reset circuit (6) on the light emitting diode (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201100835U CN201047855Y (en) | 2007-06-04 | 2007-06-04 | Anti-strong magnetic attack device for electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201100835U CN201047855Y (en) | 2007-06-04 | 2007-06-04 | Anti-strong magnetic attack device for electric meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047855Y true CN201047855Y (en) | 2008-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201100835U Expired - Fee Related CN201047855Y (en) | 2007-06-04 | 2007-06-04 | Anti-strong magnetic attack device for electric meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047855Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319418A (en) * | 2014-07-30 | 2016-02-10 | 萨基姆通讯能源及电信联合股份公司 | Electric-meter-type meter |
-
2007
- 2007-06-04 CN CNU2007201100835U patent/CN201047855Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319418A (en) * | 2014-07-30 | 2016-02-10 | 萨基姆通讯能源及电信联合股份公司 | Electric-meter-type meter |
| CN105319418B (en) * | 2014-07-30 | 2018-10-26 | 萨基姆通讯能源及电信联合股份公司 | electronic flowmeter type flowmeter |
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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: 20080416 |