CN2254554Y - Pulse generator for electric meter - Google Patents
Pulse generator for electric meter Download PDFInfo
- Publication number
- CN2254554Y CN2254554Y CN 95223179 CN95223179U CN2254554Y CN 2254554 Y CN2254554 Y CN 2254554Y CN 95223179 CN95223179 CN 95223179 CN 95223179 U CN95223179 U CN 95223179U CN 2254554 Y CN2254554 Y CN 2254554Y
- Authority
- CN
- China
- Prior art keywords
- pin
- integrated circuit
- circuit
- pulse
- resistance
- 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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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The utility model discloses a pulse generator for an electric meter. The utility model is composed of a pulse generating circuit, a pulse processing circuit and a photoelectric coupling output circuit. The pulse generating circuit comprises a metal sheet A, electrical inductance L, capacitance C1, a resistance R2, a resistance R3 and an integrated circuit IC 1 of a proximity switch. The metal sheet A is fixedly connected with a rotary plate of the electric meter. After the electrical inductance L and the capacitance C1 are connected in parallel, the electrical inductance L and the capacitance C1 are connected with the 12 pin, the 13 pin and the 6 pin of the integrated circuit IC 1. The resistance R2 and the resistance R3 are respectively connected between the 14 pin and the 2 pin of the integrated circuit IC 1, and the 11 pin and the 5 pin of the integrated circuit IC 1. The 5 pin of the integrated circuit IC 1 is connected with an output terminal of the pulse processing circuit. The utility model can be widely used for the electric meter.
Description
The utility model relates to a kind of watt-hour meter pulse producer.
At present, all adopt optical pulse generator in watt-hour meter, the mode of its pulse collection has two kinds: reflective and correlation, and reflective is the revolution that detects watt-hour meter that has or not that utilizes the reflection that light produced that watt-hour meter dial radiates illuminator; Correlation is whether to be interdicted the revolution that detects watt-hour meter by watt-hour meter dial with the light that illuminator radiates, no matter be any mode it all adopt illuminator as sensor, and obtain an electric pulse by opto-electronic conversion, therefore it all exists weak point in serviceable life, shortcomings such as interference free performance difference.
The purpose of this utility model is the watt-hour meter pulse producer that a kind of long-life, good in anti-interference performance will be provided.
The purpose of this utility model is achieved in that this pulse producer, and it comprises pulse processing circuit and photoelectricity coupling output circuit, the output terminal of described pulse processing circuit is connected with the input end of described photoelectricity coupling output circuit, it is characterized in that it also comprises a pulse generating circuit, this pulse generating circuit comprises a sheet metal A, it is fixedly connected on the rotating disk of watt-hour meter, inductance L, capacitor C
1, resistance R
2, R
3With near switch integrated circuit IC
1Described inductance L and capacitor C
1Parallel connection, one tie point ground connection, its another tie point and described integrated circuit (IC)
1The the 12nd, the 13 pin be connected this integrated circuit (IC)
1The the 6th and the 1st pin ground connection, this integrated circuit (IC)
1The 14th pin and the 2nd pin between be connected a resistance R
2, this integrated circuit (IC)
1The 11st pin and described resistance R
3An end be connected, its tie point is connected with the positive pole of power supply, described resistance R
3The other end and described integrated circuit (IC)
1The 5th pin be connected, its tie point is connected with the input end of described pulse processing circuit.
The utility model is owing to the alternative illuminator of employing one sheet metal and as sensor, when sheet metal passes through oscillator coil with watt-hour meter dial, an electric pulse promptly takes place near switch, and be sent to photoelectricity coupling output circuit again after each electric pulse is sent to pulse processing circuit and puts in order and allow the user receive, therefore, the utlity model has the long-life, good in anti-interference performance, advantage such as oneself power consumption is low.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is an electrical schematic diagram of the present utility model.
Describe structure in detail below in conjunction with Fig. 1 according to the concrete pulse producer that the utility model proposes.
This pulse producer, it comprises pulse processing circuit and photoelectricity coupling output circuit, the output terminal of described pulse processing circuit is connected with the input end of described photoelectricity coupling output circuit, it also comprises a pulse generating circuit, this pulse generating circuit is by a sheet metal A, it is fixedly connected on the rotating disk of watt-hour meter, inductance L, capacitor C
1, resistance R
1, R
2, R
3With near switch integrated circuit IC
1: described inductance L and capacitor C
1Parallel connection, one tie point ground connection, its another tie point and described integrated circuit (IC)
1The the 12nd, the 13rd pin be connected this integrated circuit (IC)
1The the 6th and the 1st pin ground connection, this integrated circuit (IC)
1The the 1st and the 14th pin between connect a resistance R
1, this integrated circuit (IC)
1The 14th pin and the 2nd pin between be connected a resistance R
2, this integrated circuit (IC)
1The 11st pin and described resistance R
3An end be connected, its tie point is connected with the positive pole of power supply, described resistance R
3The other end and described integrated circuit (IC)
1The 5th pin be connected, its tie point is connected with the input end of described pulse processing circuit, describedly can adopt for example TCA305 near switch integrated circuit.
Claims (3)
1. watt-hour meter pulse producer, it comprises pulse processing circuit and photoelectricity coupling output circuit, the output terminal of described pulse processing circuit is connected with the input end of described photoelectricity coupling output circuit, it is characterized in that it also comprises a pulse generating circuit, this pulse generating circuit comprises a sheet metal A, it is fixedly connected on the rotating disk of watt-hour meter, inductance L, capacitor C
1, resistance R
2, R
3With near switch integrated circuit IC
1Described inductance L and capacitor C
1Parallel connection, one tie point ground connection, its another tie point and described integrated circuit (IC)
1The the 12nd, the 13rd pin be connected this integrated circuit (IC)
1The the 6th and the 1st pin ground connection, this integrated circuit (IC)
1The 14th pin and the 2nd pin between be connected a resistance R
2, this integrated circuit (IC)
1The 11st pin and described resistance R
3An end be connected, its tie point is connected with the positive pole of power supply, described resistance R
3The other end and described integrated circuit (IC)
1The 5th pin be connected, its tie point is connected with the input end of described pulse processing circuit.
2. pulse producer according to claim 1 is characterized in that described near switch integrated circuit IC
1The the 1st and the 14th pin between connect a resistance R
1
3. pulse producer according to claim 1 is characterized in that described near switch integrated circuit employing TCA305.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95223179 CN2254554Y (en) | 1995-09-20 | 1995-09-20 | Pulse generator for electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95223179 CN2254554Y (en) | 1995-09-20 | 1995-09-20 | Pulse generator for electric meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2254554Y true CN2254554Y (en) | 1997-05-21 |
Family
ID=33870299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95223179 Expired - Fee Related CN2254554Y (en) | 1995-09-20 | 1995-09-20 | Pulse generator for electric meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2254554Y (en) |
-
1995
- 1995-09-20 CN CN 95223179 patent/CN2254554Y/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 |