CN200997520Y - Dosmetic distributing case - Google Patents
Dosmetic distributing case Download PDFInfo
- Publication number
- CN200997520Y CN200997520Y CN 200620107511 CN200620107511U CN200997520Y CN 200997520 Y CN200997520 Y CN 200997520Y CN 200620107511 CN200620107511 CN 200620107511 CN 200620107511 U CN200620107511 U CN 200620107511U CN 200997520 Y CN200997520 Y CN 200997520Y
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- circuit
- input
- chip processor
- output
- distribution box
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- Expired - Fee Related
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- 230000005611 electricity Effects 0.000 claims description 14
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
A family distribution cabinet, which comprises a ground line live detection equipment and an one-live line and one-ground line anti-power stealing device; is characterized in that the ground line live detection equipment and the one-live line and one-ground line anti-power stealing device are connected with a monolithic processor I/O input terminal. The monolithic processor I/O output terminal is connected with an output switch circuit.
Description
Technical field the invention relates to a kind of family distribution box, particularly a kind of peripheral circuit structure of distribution box.
Before background technology the invention applying date, family's distribution box does not have an earth wire charged testing device and an anti-fiery ground electricity filching device.
The purpose of summary of the invention the invention is to provide a kind of family distribution box, particularly has family's distribution box of an earth wire charged testing device and an anti-fiery ground electricity filching device.
The invention solves the technical scheme that its technical problem adopts: described family distribution box comprises an earth wire charged testing device and an anti-fiery ground electricity filching device; Earth wire charged testing device is connected with the single-chip processor i/o input with an anti-fiery ground electricity filching device, and the single-chip processor i/o output is connected with output switch circuit.Earth wire charged testing device is a potential difference detecting device, is made up of current-limiting circuit and input switching circuit, and cross-over connection is between the power supply Zero-liue; Current-limiting circuit is made up of capacitance-resistance device, rectification circuit, voltage stabilizing circuit, and capacitance-resistance device, rectification circuit are serially connected with between the power supply Zero-liue, and input switching circuit is connected with the single-chip processor i/o input.An anti-fiery ground electricity filching device is the stealing current sensing means, is made up of current transformer and input switching circuit, and ground wire penetrates the primary coil of current transformer, and input switching circuit is connected with the single-chip processor i/o input.Output switch circuit is made up of output switching tube and relay, and the output switching tube is connected with the single-chip processor i/o output, and the normally-closed contact of relay connects live wire and ground wire in-out end respectively.
The beneficial effect of the invention is: cut off live wire and ground wire when ground wire electrification, guarantee the personal safety of household electricity.When detecting a fiery ground stealing, power supply circuits are cut off in timesharing, restore electricity voluntarily after removing electricity filching device, can prevent stealing effectively as the attachment device of single-phase watt-hour meter.
Description of drawings Fig. 1 is the electrical schematic diagram of the invention.
Embodiment is referring to Fig. 1.Described family distribution box comprises an earth wire charged testing device and an anti-fiery ground electricity filching device; Earth wire charged testing device is connected with single-chip processor i/o input I/O (1), I/O (2) respectively with an anti-fiery ground electricity filching device, and single-chip processor i/o output I/O (3), I/O (4) are connected with output switch circuit.The earth wire charged testing device of cross-over connection between Zero-liue, form by current-limiting circuit, input switching circuit G1, current-limiting circuit is made up of capacitance-resistance device RC, rectification circuit, voltage stabilizing circuit, capacitance-resistance device RC, rectification circuit are serially connected with between the power supply Zero-liue NE, and input switching circuit G1 is connected with single-chip processor i/o input I/O (1).An anti-fiery ground electricity filching device is the stealing current sensing means, form by current transformer A and input switching circuit G2, the primary coil cross-over connection of current transformer A is between power supply fire ground wire LN, ground wire E penetrates the primary coil of current transformer A, and input switching circuit G2 is connected with single-chip processor i/o input I/O (2).Output switch circuit is made up of output switching tube G3, G4 and relay J 1, J2, and output switching tube G3, G4 are connected with single-chip processor i/o output I/O (3), I/O (4), and the normally-closed contact of relay J 1, J2 connects live wire and ground wire in-out end respectively.
The single-chip microcomputer of the invention is a 8-bit microcontroller.Present embodiment adopts the 8-bit microcontroller PIC12C508 of U.S. MICROCHIP company.
Claims (4)
1, a kind of family distribution box comprises an earth wire charged testing device and an anti-fiery ground electricity filching device; It is characterized in that earth wire charged testing device is connected with the single-chip processor i/o input with an anti-fiery ground electricity filching device, the single-chip processor i/o output is connected with output switch circuit.
2, a kind of family according to claim 1 distribution box, it is characterized in that earth wire charged testing device is a potential difference detecting device, cross-over connection is between Zero-liue, form by reduction voltage circuit and input switching circuit, reduction voltage circuit is made up of transformer, rectification circuit, voltage stabilizing circuit, the transformer cross-over connection is between the power supply Zero-liue, and input switching circuit is connected with the single-chip processor i/o input.
3, a kind of family according to claim 1 distribution box, it is characterized in that an anti-fiery ground electricity filching device is a stealing electric current checking device, form by current transformer and input switching circuit, the primary coil cross-over connection of current transformer is between power supply fire zero line, ground wire penetrates the primary coil of current transformer, and input switching circuit is connected with the single-chip processor i/o input.
4, a kind of family according to claim 1 distribution box, it is characterized in that output switch circuit is made up of output switching tube and relay, be connected with the single-chip processor i/o input, the output switching tube is connected with the single-chip processor i/o output, and the normally-closed contact of relay connects live wire and ground wire in-out end respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107511 CN200997520Y (en) | 2006-09-08 | 2006-09-08 | Dosmetic distributing case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107511 CN200997520Y (en) | 2006-09-08 | 2006-09-08 | Dosmetic distributing case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200997520Y true CN200997520Y (en) | 2007-12-26 |
Family
ID=38995955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620107511 Expired - Fee Related CN200997520Y (en) | 2006-09-08 | 2006-09-08 | Dosmetic distributing case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200997520Y (en) |
-
2006
- 2006-09-08 CN CN 200620107511 patent/CN200997520Y/en not_active Expired - Fee Related
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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 |