CN2200185Y - Terminal box for single phase electric energy meter - Google Patents
Terminal box for single phase electric energy meter Download PDFInfo
- Publication number
- CN2200185Y CN2200185Y CN 94221762 CN94221762U CN2200185Y CN 2200185 Y CN2200185 Y CN 2200185Y CN 94221762 CN94221762 CN 94221762 CN 94221762 U CN94221762 U CN 94221762U CN 2200185 Y CN2200185 Y CN 2200185Y
- Authority
- CN
- China
- Prior art keywords
- electric energy
- energy meter
- terminal box
- inlet wire
- post
- 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
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Abstract
The utility model relates to a multifunctional terminal box for a single phase electric energy meter, which is connected to the meter tail of an electric energy meter (5). The utility model has the same wiring terminal with the meter tail of the electric energy meter (5) and is communicated with the wiring terminal by electricity. The utility model is composed of bidirectional controllable silicon SCR, an electricity anti-stealing device (6), an anti-over-loading device (7), a loop tripping mechanism L and electric source lead-in normal closed switches K1, K2 which are connected with the loop tripping mechanism L. When consumers use electricity normally, the utility model does not consume electricity. When the terminal box of the utility model is sealed with the meter tail of the electric energy meter together, if various phenomena of electricity-stealing and over loading happen, the terminal box can automatically cut power, and if power supply needs to resume, the power supply department is required to remove the seal to deal with.
Description
The utility model relates to electrical energy meter anti-theft electricity device technique field.
Electrical energy meter anti-theft electricity device development in recent years is rapid, but there is following defective in existing anti-electricity-theft device more: 1. anti-electricity-theft device consumed power; 2. be installed in the electric energy meter, take up room, make troubles, original also inconvenience installing of electric energy meter with anti-electricity-theft device to electric energy meter calibration; 3. the element use is on the high side, the one side poor reliability, and cost is higher on the other hand; 4. can only prevent part stealing mode.
At above-mentioned defective, the utility model proposes a kind of multifunctional electric energy meter terminal box that is connected in single-phase electric energy meter table tail, can effectively prevent existing various stealing mode, and have the load limit function, and cost is low, the reliability height.
The utility model is to realize like this.Multi-functional single-phase connection box of electric energy meter box, be connected in the table tail of electric energy meter (5), have and the corresponding live wire inlet wire of electric energy meter post (1), live wire outlet column (2), zero line inlet wire post (3), zero line outlet column (4), each binding post respectively with the corresponding binding post electric connection of electric energy meter (5), it is characterized in that, this terminal box is by the bidirectional triode thyristor SCR that is connected between live wire inlet wire post (1) and the zero line inlet wire post (3), be connected in the anti-electricity-theft device (6) of zero line inlet wire post (3) and bidirectional triode thyristor SCR trigger end, be connected in the overload prevention device (7) of zero line inlet wire post (3) and bidirectional triode thyristor SCR trigger end, and the coil trip gear L that connects with bidirectional triode thyristor SCR and by live wire inlet wire in the terminal box of its control, zero line inlet wire normally closed switch K1, K2 forms, and anti-electricity-theft device (6) is by the sensing coil L that is installed on the magnet ring
1Form L with capacitor C
1The closed-loop path of C and L
1C closed-loop path diode in series D
4, stabilivolt D
3Form, the connecting line between electric energy meter (5) and this terminal box live wire outlet column (2), the zero line outlet column (4) all passes sensing coil L
1, overload prevention device (7) is by the sensing coil L that is installed on the magnet ring
2With diode D
1, the closed-loop path formed of adjustable resistance R and from the stabilivolt D of adjustable resistance R taking-up sampling voltage
2Form, electric energy meter (5) passes sensing coil L with any connecting line of this terminal box binding post
2
During the normal electricity consumption of user, sensing coil L
1No current, this is because it is zero that the turnover magnetic flux is cancelled out each other, and when the user takes existing various stealing mode stealing, all causes sensing coil L
1Middle turnover current imbalance, thus L caused
1There is electric current to pass through, L
1To produce resonance potential in the C loop by diode D
4Puncture stabilivolt D
3, make bidirectional triode thyristor SCR conducting, will there be electric current to pass through among the tripping coil L, make normally closed switch K1, K2 disconnect interruption of power supply.When the user in given load range during electricity consumption, L
2Middle electric current is normal, and the pressure drop of adjustable resistance R is a normal value, stabilivolt D
2Can be not breakdown, no current passes through among the SCR, and tripping coil L is failure to actuate; When the user exceeds to the constant load electricity consumption, L
2Middle electric current exceeds normal value, and the pressure drop on the adjustable resistance R is enough big, causes stabilivolt D
2Breakdown, thus make bidirectional triode thyristor SCR conducting, there is electric current to pass through among the tripping coil L, cut-off switch K1, K2 interruption of power supply.During use, the utility model terminal box and electric energy meter table tail are packaged together, and the user desires to restore electricity, and only ask the visitor in, and the power supply department unpacking is handled, and so just can prevent user's various stealings and overload electricity consumption behavior effectively.The utility model is simple in structure, and cost is lower, and only just power consumption when stealing or overload electricity consumption take place, and being installed in outside the electric energy meter both can also be convenient to power supply department and be applied on the former ammeter of haveing been friends in the past by the sale that forms a complete production network of electric energy meter manufacturer.
Accompanying drawing is the structural representation that the utility model terminal box is connected with electric energy meter.
In an embodiment of the present utility model, sensing coil L
1With sensing coil L
2Be installed in respectively on two holes of a diplopore magnet ring.
Claims (2)
1, multi-functional single-phase connection box of electric energy meter box, be connected in the table tail of electric energy meter (5), have and the corresponding live wire inlet wire of electric energy meter post (1), live wire outlet column (2), zero line inlet wire post (3), zero line outlet column (4), each binding post respectively with the corresponding binding post electric connection of electric energy meter (5), it is characterized in that, this terminal box is by the bidirectional triode thyristor SCR that is connected between live wire inlet wire post (1) and the zero line inlet wire post (3), be connected in the anti-electricity-theft device (6) of zero line inlet wire post (3) and bidirectional triode thyristor SCR trigger end, be connected in the overload prevention device (7) of zero line inlet wire post (3) and bidirectional triode thyristor SCR trigger end, and the coil trip gear L that connects with bidirectional triode thyristor SCR and by live wire inlet wire in the terminal box of its control, zero line inlet wire normally closed switch K1, K2 forms, and anti-electricity-theft device (6) is by the sensing coil L that is installed on the magnet ring
1L with the capacitor C composition
1C closed-loop path and L
1C closed-loop path diode in series D
4, stabilivolt D
3Form, the connecting line between electric energy meter (5) and this terminal box live wire outlet column (2), the zero line outlet column (4) all passes sensing coil L
1C, overload prevention device (7) is by the sensing coil L that is installed on the magnet ring
2With diode D
1, the closed-loop path formed of adjustable resistance R and from the stabilivolt D of adjustable resistance R taking-up sampling voltage
2Form, electric energy meter (5) passes sensing coil L with any connecting line of this terminal box binding post
2
2, multi-functional single-phase connection box of electric energy meter box according to claim 1 is characterized in that sensing coil L
1With sensing coil L
2Be installed in respectively on two holes of a diplopore magnet ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94221762 CN2200185Y (en) | 1994-09-14 | 1994-09-14 | Terminal box for single phase electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94221762 CN2200185Y (en) | 1994-09-14 | 1994-09-14 | Terminal box for single phase electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2200185Y true CN2200185Y (en) | 1995-06-07 |
Family
ID=33835974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94221762 Expired - Fee Related CN2200185Y (en) | 1994-09-14 | 1994-09-14 | Terminal box for single phase electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2200185Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107918036A (en) * | 2017-12-21 | 2018-04-17 | 江苏丽阳电子仪表有限公司 | A kind of mounting process of single-phase intelligent ammeter |
| CN109188039A (en) * | 2018-09-28 | 2019-01-11 | 国网重庆市电力公司电力科学研究院 | A kind of intelligent meter tail of opposing electricity-stealing with communication function |
-
1994
- 1994-09-14 CN CN 94221762 patent/CN2200185Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107918036A (en) * | 2017-12-21 | 2018-04-17 | 江苏丽阳电子仪表有限公司 | A kind of mounting process of single-phase intelligent ammeter |
| CN109188039A (en) * | 2018-09-28 | 2019-01-11 | 国网重庆市电力公司电力科学研究院 | A kind of intelligent meter tail of opposing electricity-stealing with communication function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |