CN205539108U - Electromagnetic interference resistance steals electric energy meter case of electricity - Google Patents
Electromagnetic interference resistance steals electric energy meter case of electricity Download PDFInfo
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- CN205539108U CN205539108U CN201620309978.0U CN201620309978U CN205539108U CN 205539108 U CN205539108 U CN 205539108U CN 201620309978 U CN201620309978 U CN 201620309978U CN 205539108 U CN205539108 U CN 205539108U
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Abstract
The embodiment of the utility model discloses electromagnetic interference resistance steals electric energy meter case of electricity, include housing body and set up the last transparent window of housing body, wherein, housing body is the carbon fiber shell, the surface of transparent window covers there is the indium tin oxide film. The carbon fiber shell has the anti -electromagnetic interference ability, and the messenger is incided most electromagnetic interference ripples of housing body is gone out by the reflection, indium tin oxide has a reflective capability to the electromagnetic wave the transparent window surface covers to be had the indium tin oxide film makes incident electromagnetic wave major part gone out by the reflection, and compare current plastics transparent window and had the electromagnetic -radiation -resisting jamming effect, an embodiment of the utility model discloses an electromagnetic interference resistance steals electric energy meter case of electricity has effectively reduced the hi -Tech and has stolen electric action to the interference of electric energy meter measurement and the damage that probably causes the electric energy meter.
Description
Technical field
This utility model relates to electric energy meter shell technical field, particularly relates to outside the electric energy meter of a kind of anti-electromagnetic interference stealing
Shell.
Background technology
In power system, secondary device such as some metering devices is higher to the sensitivity of electromagnetic interference, though some energy
The least electromagnetic radiation, it is also possible to these equipment produces interference greatly, not only results in device damage, also can shadow
Ring the properly functioning of whole power system.Many instability problems in accurate measurement circuit can sum up in the point that high-frequency electromagnetic is done
Disturbing, this is relatively common for having the instrument amplifier of differential amplification effect, because the two of instrument amplifier inputs pair
Ground input impedance is the highest, is therefore easily subject to radio-frequency radiation interference.In instrument amplifier, reduce the heaviest of measurement accuracy
The factor wanted is common mode inhibition to be increased with frequency and reduces and be to start to reduce from the lowest frequency, and i.e. distortion is with frequency
Increase and increase.It is not only so not suppress high frequency common-mode signals, and makes high frequency common-mode signals distortion, produce imbalance.And
The major reason forming common mode disturbances is exactly electromagnetic interference, does as high power radiation sources induces common mode on holding wire
Disturb.
At present, the commonly used plastic material of electric energy meter shell, not there is radiation-resisting functional.Part lawless person utilizes high-tech intelligence
The high-power high-frequency radiotechnology of energyization is to digital power ammeter (a kind of measuring equipment) itself and internal electric energy computation chip
Disturb, make electric energy meter cisco unity malfunction.This stealing electricity method is owing to just can reach at counter box emission high-power signal
To the purpose of interference electric energy meter metering, disguised strong, it is not required to dynamic power equipment and any part of electric energy meter, does not stays
Any vestige, even if making electricity consumption inspector find stealing at short notice, also cannot be qualitative, electric energy meter, and electricity can only be changed
Energy is remedied difficult.
In prior art, the counter-measure for high-tech stealing has: establish and improve the operation archives of each user's metering device,
Strengthen lead sealing and the management of sealing pliers and improve user's visa；For the user installation net list that power load fluctuation ratio is bigger, real
Time monitoring, analysis load change curve etc., although these measures serve certain supervisory role to electricity filching behavior, but can not
Directly solving electric energy meter and be vulnerable to the problem of electromagnetic interference, the electricity filching behavior frequently occurred still can disturb the metering of electric energy meter, very
To damaging electric energy meter.Therefore, how to solve electric energy meter and be vulnerable to the problem of electromagnetic interference, improve the anti-electromagnetic interference of electric energy meter
Stealing ability becomes a vital task of those skilled in the art.
Utility model content
This utility model embodiment provides the electric energy meter shell of a kind of anti-electromagnetic interference stealing, to solve high-tech stealing
The problem of interference electric energy meter work.
In order to solve above-mentioned technical problem, this utility model embodiment discloses following technical scheme:
The electric energy meter shell of a kind of anti-electromagnetic interference stealing that this utility model embodiment provides, including outer cover body be opened in
Transparency window on described outer cover body, wherein, described outer cover body is carbon fiber skin, and the outer surface of described transparency window is coated with
Indium tin oxide films.
Preferably, described carbon fiber skin plated surface is covered with nickel dam, and the thickness of described carbon fiber skin is 3mm～8mm, described
Nickel layer thickness is 100 μm～0.2mm.
Preferably, described transparency window includes display window, program window and terminal cap, and wherein, described display window is positioned at described shell
The front upper of body, described terminal cap is positioned at the positive basifacial of described outer cover body, described program window be positioned at described display window with
Between described terminal cap.
Preferably, described display window and program window all include the first perspex layer, two surfaces of described first perspex layer
On be all covered with the first indium tin oxide films, described first lucite layer thickness is 1.3mm～1.8mm, described first oxidation
Indium tin thin film thickness is 100nm～100 μm.
Preferably, described terminal cap includes the second perspex layer, described in have two surfaces of the second machine glassy layer to be all covered with
Indium dioxide tin thin film, described first lucite layer thickness is 1.5mm～2.5mm, described second indium tin oxide films thickness
For 100nm～100 μm.
Preferably, described electric energy meter shell also includes the electro-magnetic shielding cover for covering electric energy meter computation chip, described electromagnetic shielding
Cover is Nickel Plating on Carbon Fiber radome, and described electro-magnetic shielding cover offers louvre.
Preferably, described electric energy meter shell also includes seal, wherein, both sides, described outer cover body upper end by screw fixing seal,
Both sides screw is equipped with the first seal and the second seal respectively；Described program window side is connected with described outer cover body strand, another
Side is fixed on described outer cover body by the 3rd screw, and described 3rd screw is equipped with the 3rd seal；The one of described terminal cap
Side is connected with described outer cover body strand, opposite side is fixed on described outer cover body by the 4th screw, and described 4th screw is worn
It is provided with the 4th seal.
Preferably, it is provided with mounting hook bottom described outer cover body.
From above technical scheme, the electric energy meter shell of the anti-electromagnetic interference stealing that this utility model embodiment provides utilizes
The characteristic that the electrical loss microwave absorbing property of carbon fiber, electrical conductivity are relatively low, described outer cover body is carbon fiber skin, have anti-electromagnetism
Interference performance, makes the most of electromagnetic interference wave inciding described outer cover body be reflected；This utility model embodiment provides
The electric energy meter shell of anti-electromagnetic interference stealing also use tin indium oxide and electromagnetic wave had reflectance, outside described transparency window
Surface is coated with indium tin oxide films, enables incident electromagnetic wave major part to be reflected, and compares existing plastic, transparent window and has
Anti-electromagnetic-radiation interference performance, has successfully managed high-tech stealing.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will to embodiment or
In description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, for ordinary skill people
For Yuan, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The Facad structure signal of the electric energy meter shell of a kind of anti-electromagnetic interference stealing that Fig. 1 provides for this utility model embodiment
Figure；
Fig. 2 is the side structure schematic diagram of the electric energy meter shell of Fig. 1 anti-electromagnetic interference stealing；
Fig. 3 is the structure schematic diagram of the electric energy meter shell of Fig. 1 anti-electromagnetic interference stealing；
The electro-magnetic shielding cover structural representation of a kind of electric energy meter shell that Fig. 4 provides for this utility model embodiment；
In Fig. 1-4, symbol table is shown as:
1-outer cover body, 2-display window, 3-program window, 4-terminal cap, 5-electro-magnetic shielding cover, 51-louvre, 61-
One seal, 62-the second seal, 63-the 3rd seal, 64-the 4th seal, 7-links up with.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in this utility model, below in conjunction with this practicality
Accompanying drawing in new embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that
Described embodiment is only a part of embodiment of this utility model rather than whole embodiments.New based on this practicality
Embodiment in type, the every other reality that those of ordinary skill in the art are obtained under not making creative work premise
Execute example, all should belong to the scope of this utility model protection.
See Fig. 1, for the Facad structure schematic diagram of the electric energy meter shell that this utility model embodiment provides.
Electric energy meter shell described in this utility model embodiment, including outer cover body 1, transparency window, electro-magnetic shielding cover the 5, first envelope
Sign the 61, second seal the 62, the 3rd seal the 63, the 4th seal 64 and hook 7.
Seeing Fig. 2, Fig. 3, described outer cover body 1 is box-like.Described outer cover body 1 is carbon fiber skin, and plated surface is covered with
Nickel dam.The thickness of described carbon fiber skin is 3mm～8mm, preferably 5mm, and described nickel layer thickness is 100 μm～0.2mm.Carbon
Fiber is a kind of dielectric loss type absorbing material, owing to its resistivity is relatively low, is excellent conductor, the table of electromagnetic wave incident to fiber
Face is just reflected, and by carbon fiber is carried out surface metalation process or doping vario-property, can improve the anti-electricity of carbon fiber
Outside magnetic interruptions property.Nickel-coated carbon fibers has the advantages such as low cost, anti-electromagnetic-radiation interference performance are strong, and the carbon selecting plating nickel dam is fine
Dimension shell, as the electric energy meter shell in the present embodiment, is compared common plastics electric energy meter shell and is added anti-electromagnetic-radiation interference energy
Power.
Described transparency window is opened on described outer cover body 1, in this utility model embodiment, described transparency window include display window 2,
Program window 3 and terminal cap 4, wherein, described display window 2 is positioned at the front upper of described outer cover body 1, described terminal cap 4
Being positioned at the positive basifacial of described outer cover body 1, described program window 3 is between described display window 2 and described terminal cap 4.Institute
State transparency window and include perspex layer, two surfaces of described perspex layer are all covered with indium tin oxide films.Wherein, institute
The the first lucite layer thickness stating display window and program window is 1.3mm～1.8mm, and the first indium tin oxide films thickness is
100nm～100 μm, preferably 500nm, the second lucite layer thickness of described terminal cap is 1.5mm～2.5mm, the second oxygen
Changing indium tin thin film thickness is 100nm～100 μm, preferably 1000nm.
Described transparency window selects the lucite being coated with indium tin oxide films, on the basis of the observing function not affecting transparency window,
Compare common plastics shell and add anti-electromagnetic-radiation interference function.Described indium tin oxide films is the most anti-to the effect of electromagnetic wave
Penetrating and disturb, absorbing the least, the behavior that electromagnetic interference and electromagnetic wave are propagated in described transparency window can so describe: (1) enters
Radio magnetic wave major part is reflected by described transparency window outer surface indium tin oxide films, and remaining part electromagnetic wave enters described organic glass
Glass；(2) remaining electromagnetic wave arrival described transparency window inner surface the most oxidized indium tin thin film is fully reflective；(3) described organic glass
The indium tin oxide films on the two sides of glass can also make incident electromagnetic wave at indium tin oxide films described in this two-layer and lucite interface
Between reflection echo interfere cancellation, effectively shield external electromagnetic radiation interference.In described transparency window, described perspex layer and
The thickness of described indium tin oxide films belongs to preferred version, and the second indium tin oxide films thickness of wherein said terminal cap 4 is thick
In described display window 2 and the first indium tin oxide films thickness of described program window 3, it is owing to described terminal cap 4 is for closing electricity
Can the line terminal of table, described line terminal most probable by electromagnetic interference, the therefore end of this utility model embodiment
Second indium tin oxide films thickness of son lid 4 is thicker than the first indium tin oxide films thickness of described display window 2 and described program window 3.
The size of display window 2 described in described transparency window, program window 3 and terminal cap 4 and position and the observation merit of standard electric energy meter
Can adapt.Although nickel-coated carbon fibers and indium tin oxide films all have good anti-electromagnetic-radiation interference performance, but nickel-plated carbon is fine
The cost of dimension is the cheapest, and therefore this utility model only needs the position being observed to offer described transparency window at electric energy meter, so may be used
To take into account cost and function.Certainly, if only with the shell being coated with indium tin oxide films or the transparency window size and shape offered
Being slightly different transparency window such as with this utility model embodiment is that display window 2, program window 3 and terminal cap 4 formula etc. that is connected as a single entity all exists
Within initiative spirit of the present utility model, also should belong to protection domain of the present utility model.
Seeing Fig. 1, Fig. 4, described electric energy meter shell also includes the electro-magnetic shielding cover 5 for covering electric energy meter computation chip, institute
State electro-magnetic shielding cover 5 to be placed in inside electric energy meter.Described electro-magnetic shielding cover 5 is Nickel Plating on Carbon Fiber radome, described electro-magnetic shielding cover
On offer louvre 51.For meeting domestic market main flow computation chip size, the size of described electro-magnetic shielding cover is: long a is
20mm, wide b are 15mm, high h is 5mm, and thickness is 1mm.For preventing electric energy computation chip overheated, at computation chip electromagnetism
Opened above radome 56, each area be 1mm2Louvre 51.Described electro-magnetic shielding cover 5, is to prevent minority electromagnetism
Ripple penetrates electric energy meter shell and enters inside electric energy meter, disturbs electric energy meter metering core component electric energy computation chip, causes electricity
Table metering performance can decline and metering misalignment, cause data corruption cannot normally work and set up.Use existing metal adhesive skill
Art, enters in described computation chip electro-magnetic shielding cover 5 through liquid adhesive by electric energy meter computation chip safety guard under room temperature or middle temperature,
Bonding interface can not only transmit stress and also can seal, anticorrosion, surface and entirety can carry out the machinings such as car, brill and milling.
Described electric energy meter shell also includes seal, and wherein, both sides, described outer cover body upper end are by screw fixing seal, both sides screw
Middle it is equipped with the first seal 61 and the second seal 62 respectively；Described program window side is connected with described outer cover body 1 strand, another
Side is fixed on described outer cover body by the 3rd screw, and described 3rd screw is equipped with the 3rd seal 63；Described terminal cap 4
Side and described outer cover body 1 strand be connected, opposite side is fixed on described outer cover body 1 by the 4th screw, the described 4th
The 4th seal 64 it is equipped with on screw.
Described screw uses CARBURIZING FURNACE FOR STAINLESS FASTENER, and described seal uses electronic seal, the preferably electronic seal of band RFID functional type.
Electronic seal be a kind of can self-locking, the disposable plastic shell seal of anti-unlatching, each seal has unique coding.Electronics
Seal uses non-contact automatic identification technology, can automatically identify target, acquisition related data, and energy intelligent read and communicate
Conversion, it is achieved computer software manages.Electronic seal label number ID has global uniqueness, completes to execute by RFID reader
Envelope deblocking management process, data are downloaded and remote transmission, and in this utility model embodiment, electronic seal is prevented for standard metering
Steal, anti-tamper data also can realize automated management of checking meter simultaneously.
Seeing Fig. 3, described electric energy meter shell also includes being located at the mounting hook 7 bottom described outer cover body 1, and described installation is hung
Hook 7 is linked up with for rustless steel, for in-site installation electric energy meter.
From above-described embodiment, the electric energy meter shell of described anti-electromagnetic interference stealing is carbon fiber skin, described shell table
Face plating nickel dam, the transparency window surface on described shell covers indium tin oxide films, it is possible to significantly reduces high-tech and steals
The damage that electric energy meter metering is disturbed and may be caused electric energy meter by electricity behavior.
It should be noted that in this article, such as the relational terms of " first " and " second " or the like be used merely to by
One entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or behaviour
Relation or the order of any this reality is there is between work.And, term " includes ", " comprising " or it is any
Other variants are intended to comprising of nonexcludability so that include the process of a series of key element, method, article or
Equipment not only includes those key elements, but also includes other key elements being not expressly set out, or also includes for this mistake
The key element that journey, method, article or equipment are intrinsic.In the case of there is no more restriction, statement " include one
It is individual ... " key element that limits, it is not excluded that there is also in including the process of described key element, method, article or equipment
Other identical element.
The above is only detailed description of the invention of the present utility model, makes to skilled artisans appreciate that or realize this reality
With novel.Multiple amendment to these embodiments will be apparent to one skilled in the art, herein institute
The General Principle of definition can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.
Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to disclosed herein
Principle and the consistent the widest scope of features of novelty.
Claims (8)
1. the electric energy meter shell of an anti-electromagnetic interference stealing, it is characterised in that include outer cover body (1) and be opened in described
Transparency window on outer cover body (1), wherein:
Described outer cover body (1) is carbon fiber skin；
The outer surface of described transparency window is coated with indium tin oxide films.
The electric energy meter shell of anti-electromagnetic interference stealing the most according to claim 1, it is characterised in that described carbon fiber skin
Plated surface be covered with nickel dam, described carbon fiber skin thickness is 3mm～8mm, and described nickel layer thickness is 100 μm～0.2mm.
The electric energy meter shell of anti-electromagnetic interference stealing the most according to claim 1, it is characterised in that described transparency window includes
Display window (2), program window (3) and terminal cap (4), wherein, described display window (2) is positioned at described outer cover body (1)
Front upper, described terminal cap (4) is positioned at the positive basifacial of described outer cover body (1), and described program window (3) is positioned at
Between described display window (2) and described terminal cap (4).
The electric energy meter shell of anti-electromagnetic interference stealing the most according to claim 3, it is characterised in that described display window (2)
All include the first perspex layer with program window (3), two surfaces of described first perspex layer are all covered with the first oxygen
Changing indium tin thin film, described first lucite layer thickness is 1.3mm～1.8mm, and described first indium tin oxide films thickness is
100nm～100 μm.
The electric energy meter shell of anti-electromagnetic interference stealing the most according to claim 3, it is characterised in that described terminal cap (4)
Including the second perspex layer, two surfaces of described second perspex layer are all covered with the second indium tin oxide films, and described
Two lucite layer thicknesses are 1.5mm～2.5mm, and described second indium tin oxide films thickness is 100nm～100 μm.
The electric energy meter shell of anti-electromagnetic interference stealing the most according to claim 1, it is characterised in that described electric energy meter shell
Also including the electro-magnetic shielding cover (5) for covering electric energy meter computation chip, described electro-magnetic shielding cover (5) is Nickel Plating on Carbon Fiber screen
Cover cover, described electro-magnetic shielding cover (5) offers louvre (51).
The electric energy meter shell of anti-electromagnetic interference stealing the most according to claim 3, it is characterised in that described electric energy meter shell
Also include seal, wherein:
Described outer cover body (1) both sides, upper end, by screw fixing seal, are equipped with the first seal (61) respectively in the screw of both sides
With the second seal (62)；
Described program window (3) side and described outer cover body (1) strand is connected, opposite side by the 3rd screw be fixed on described outside
On shell body (1), described 3rd screw is equipped with the 3rd seal (63)；
The side of described terminal cap (4) is connected with described outer cover body (1) strand, opposite side is fixed on described by the 4th screw
On outer cover body (1), described 4th screw is equipped with the 4th seal (64).
The electric energy meter shell of anti-electromagnetic interference stealing the most according to claim 1, it is characterised in that described outer cover body
(1) bottom is provided with mounting hook (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620309978.0U CN205539108U (en) | 2016-04-14 | 2016-04-14 | Electromagnetic interference resistance steals electric energy meter case of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620309978.0U CN205539108U (en) | 2016-04-14 | 2016-04-14 | Electromagnetic interference resistance steals electric energy meter case of electricity |
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| CN205539108U true CN205539108U (en) | 2016-08-31 |
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| CN201620309978.0U Active CN205539108U (en) | 2016-04-14 | 2016-04-14 | Electromagnetic interference resistance steals electric energy meter case of electricity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675943A (en) * | 2016-04-14 | 2016-06-15 | 云南电网有限责任公司电力科学研究院 | Electric energy meter housing preventing electromagnetic interference electricity stealing and preparation method thereof |
| CN112834796A (en) * | 2021-03-23 | 2021-05-25 | 南方电网科学研究院有限责任公司 | Electric energy meter capable of preventing strong magnetic interference |
-
2016
- 2016-04-14 CN CN201620309978.0U patent/CN205539108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675943A (en) * | 2016-04-14 | 2016-06-15 | 云南电网有限责任公司电力科学研究院 | Electric energy meter housing preventing electromagnetic interference electricity stealing and preparation method thereof |
| CN112834796A (en) * | 2021-03-23 | 2021-05-25 | 南方电网科学研究院有限责任公司 | Electric energy meter capable of preventing strong magnetic interference |
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