CN2819223Y - Magnetic-resisting screen can for watt-hour meter counter - Google Patents
Magnetic-resisting screen can for watt-hour meter counter Download PDFInfo
- Publication number
- CN2819223Y CN2819223Y CN 200520031939 CN200520031939U CN2819223Y CN 2819223 Y CN2819223 Y CN 2819223Y CN 200520031939 CN200520031939 CN 200520031939 CN 200520031939 U CN200520031939 U CN 200520031939U CN 2819223 Y CN2819223 Y CN 2819223Y
- Authority
- CN
- China
- Prior art keywords
- cover body
- magnetic
- magnetic force
- watt
- hour meter
- 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 - Fee Related
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
The utility model discloses a magnetic-resisting shielding cover for a watt-hour meter counter, which comprises a base board used for installing an electromagnetic coil of a counter and a cover body buckled on the base board, wherein the cover body is a cylinder made of magnetic materials and provided with a single layer structure or a double-layer structure. The utility model has the advantages that the cover body is arranged up into the cylinder made of the magnetic materials and provided with the double-layer structure, therefore when the external high magnetism makes the disturbance, magnetic force lines vertically radiate onto the cover body, and however, most of magnetic force lines are absorbed or reflected and only a small percentage of magnetic force lines enters interior. The magnetic force lines entering the interior encounter the shielding of the second layer cover body. Through the absorption and the reflection of the second layer cover body, the magnetic force line capable of entering a shielding region is less. Through the experimental verification, the magnetic force line can be reduced by more than 90 percents, therefore the magnetic shielding function of the cover body is enhanced and the phenomenon of inaccurate counting of the watt-hour meter due to magnetic disturbance is stopped.
Description
Technical field
The utility model relates to the antimagnetic outer cover of counter, especially relates to the antimagnetic shield cover that is used for the watt-hour meter counter.
Background technology
The application of counter is very extensive in the daily life, as watt-hour meter counter, gas meter counter, water meter counter and mileometer counter or the like, the effect of counter is exactly to write down in real time what of consumption accurately, if the accuracy of counter can not be guaranteed, not only can damage consumer's interests, because user's malice also can be brought loss to country.Our daily used watt-hour meter counter, there is a coil its inside, hub of a spool is equipped with a circular magnetic core frame that stretches out, the magnetic core frame other end is inlayed a miniature p-m rotor, rotor drives digit wheel in the gear mode and rotates, when coil is transfused to certain exchange current, coil produces the field drives rotor rotation, counter is started working, the screening can of existing watt-hour meter counter is limit owing to its structure, the profile that has is unreasonable, can not effectively prevent strong magnetic interference, if when having a great external magnetic field to force on the counter, just can rotate by direct driving rotor in this magnetic field, the counting of watt-hour meter just is not inconsistent with actual amount like this, and actual amount what can not accurately reflect, has stayed the opportunity of stealing for some unconscious persons.
The utility model content
The purpose of this utility model is to provide a kind of can effectively prevent strong magnetic interference, make the accurately antimagnetic shield cover that is used for the watt-hour meter counter of work of counter.
For achieving the above object, the utility model can be taked following technical proposals:
The antimagnetic shield cover that is used for the watt-hour meter counter described in the utility model, it comprises the base plate that is used to install the counter solenoid and be fastened on cover body on the described base plate, it is characterized in that: described cover body has individual layer or a double-deck right cylinder for what made by the magnetic material.
Described cover body is for having double-deck right cylinder; The interlayer gap of described cover body is 0.5-1.5mm.In the interlayer of described cover body, be provided with the dottle pin of making by non-magnet material.
Advantage of the present utility model is that cover body is set to have a double-deck right cylinder by what the magnetic material was made, when external strong magnetic interference, magnetic line of force vertical radiation is to cover body, most of magnetic line of force is absorbed or reflects, have only the small part magnetic line of force to enter inside, the magnetic line of force that enters inside runs into the shielding of second layer cover body again, absorption and reflection through second layer cover body, can enter in the shielding area the magnetic line of force just still less, experimental results show that, the magnetic line of force can be decayed more than 90%, has improved the magnetic screening action of cover body greatly, has stopped watt-hour meter and has been forbidden the generation of phenomenon because of magnetic interference causes counting.
Description of drawings
Fig. 1 cuts open structural representation for master of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to cut-open view.
Embodiment
As shown in the figure, the antimagnetic shield cover that is used for the watt-hour meter counter described in the utility model, it comprises the base plate 1 and the cover body 2 that is fastened on the described base plate 1 that is used to install the counter solenoid, the have double-deck right cylinder of described cover body 2 for being made by the magnetic material.The interlayer gap of described cover body 2 is 1mm, is provided with the dottle pin of being made by non-magnet material 3 in cover body 2 interlayers.
Claims (4)
1, a kind of antimagnetic shield cover that is used for the watt-hour meter counter, it comprises the base plate (1) that is used to install the counter solenoid and be fastened on cover body (2) on the described base plate (1), it is characterized in that: described cover body (2) has individual layer or a double-deck right cylinder for what made by the magnetic material.
2, antimagnetic shield cover according to claim 1 is characterized in that: described cover body (2) is for having double-deck right cylinder.
3, antimagnetic shield cover according to claim 2 is characterized in that: the interlayer gap of described cover body (2) is 0.5-1.5mm.
4, antimagnetic shield cover according to claim 2 is characterized in that: be provided with the dottle pin of being made by non-magnet material (3) in the interlayer of described cover body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031939 CN2819223Y (en) | 2005-09-22 | 2005-09-22 | Magnetic-resisting screen can for watt-hour meter counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031939 CN2819223Y (en) | 2005-09-22 | 2005-09-22 | Magnetic-resisting screen can for watt-hour meter counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2819223Y true CN2819223Y (en) | 2006-09-20 |
Family
ID=37005283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520031939 Expired - Fee Related CN2819223Y (en) | 2005-09-22 | 2005-09-22 | Magnetic-resisting screen can for watt-hour meter counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2819223Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735306A (en) * | 2012-07-12 | 2012-10-17 | 重庆市智能水表有限责任公司 | Magnetic pulse prevention sensor used for flow meter |
| CN104459241A (en) * | 2014-12-10 | 2015-03-25 | 国家电网公司 | Intelligent electric meter with mistaken meter reading preventing function |
| CN109640610A (en) * | 2018-12-06 | 2019-04-16 | 上海无线电设备研究所 | A kind of increase and lose formula shielding case with higher electromagnet shield effect |
| CN112786324A (en) * | 2021-01-29 | 2021-05-11 | 北京双杰电气股份有限公司 | Low-voltage direct-current circuit breaker arc extinguish chamber and circuit breaker |
| CN112908787A (en) * | 2021-01-29 | 2021-06-04 | 北京双杰电气股份有限公司 | Magnetic shield and low-voltage direct-current circuit breaker using same |
-
2005
- 2005-09-22 CN CN 200520031939 patent/CN2819223Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735306A (en) * | 2012-07-12 | 2012-10-17 | 重庆市智能水表有限责任公司 | Magnetic pulse prevention sensor used for flow meter |
| CN104459241A (en) * | 2014-12-10 | 2015-03-25 | 国家电网公司 | Intelligent electric meter with mistaken meter reading preventing function |
| CN104459241B (en) * | 2014-12-10 | 2017-07-07 | 国家电网公司 | The anti-error intelligent electric meter checked meter |
| CN109640610A (en) * | 2018-12-06 | 2019-04-16 | 上海无线电设备研究所 | A kind of increase and lose formula shielding case with higher electromagnet shield effect |
| CN112786324A (en) * | 2021-01-29 | 2021-05-11 | 北京双杰电气股份有限公司 | Low-voltage direct-current circuit breaker arc extinguish chamber and circuit breaker |
| CN112908787A (en) * | 2021-01-29 | 2021-06-04 | 北京双杰电气股份有限公司 | Magnetic shield and low-voltage direct-current circuit breaker using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2819223Y (en) | Magnetic-resisting screen can for watt-hour meter counter | |
| CN205711837U (en) | Municipal administration vehicle mounted road warning sign | |
| CN104101384A (en) | Electronic intelligent helical-vaned small-diameter water meter | |
| CN201668061U (en) | Demagnetization-prevention wallet | |
| CN206002123U (en) | A kind of multifunction instrument | |
| CN201152883Y (en) | Electricity meter box with shield for preventing strong magnetism electricity-theft | |
| CN203365506U (en) | Novel centralized ammeter case | |
| CN205722175U (en) | A kind of single current dry intelligent water meter | |
| CN209607075U (en) | A kind of pre- payment formula remote valve control Intelligent water meter of Internet of things | |
| CN103364600B (en) | Concentrate ammeter box | |
| CN211293834U (en) | Anti-interference terminal network server | |
| CN211426589U (en) | Anti-electromagnetic interference ammeter | |
| CN2348360Y (en) | Anti-magnetic device for electronic water meter | |
| CN206362393U (en) | Split pre-payment water meter Waterproof controller housing | |
| CN2562189Y (en) | Electromechanical integrated kilowatt meter against charge evasion | |
| CN218576240U (en) | Intelligent robot enterprise identification scene input device | |
| CN205593573U (en) | Ancient ways formula detects mechanical water meter | |
| CN2914253Y (en) | New type no-flux no-case magnetic head | |
| CN202857191U (en) | Outdoor protection cabinet of ration loading instrument | |
| CN208190759U (en) | A kind of waterproof mobile phone face-piece | |
| CN213812434U (en) | Wireless remote water meter | |
| CN201689445U (en) | Concealed magnetic stripe card | |
| CN203327781U (en) | Multi-view adjustable counter | |
| CN217132283U (en) | Dry-type water meter with enhanced anti-magnetic ring | |
| CN2816819Y (en) | Device for preventing fraudulent-use of electricity for use in state single-phase electric meter |
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: 20060920 Termination date: 20091022 |