CN2543255Y - Metering controller for electric control cabinet - Google Patents
Metering controller for electric control cabinet Download PDFInfo
- Publication number
- CN2543255Y CN2543255Y CN 02211253 CN02211253U CN2543255Y CN 2543255 Y CN2543255 Y CN 2543255Y CN 02211253 CN02211253 CN 02211253 CN 02211253 U CN02211253 U CN 02211253U CN 2543255 Y CN2543255 Y CN 2543255Y
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- circuit
- control
- signal output
- control cabinet
- 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 - Lifetime
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Abstract
The utility model relates to a metering controller for electric control cabinet which has a simple circuit structure and reliable operation. The technical proposal is that: a metering controller for electric control cabinet is formed by a single chip microcomputer and so on, and is characterized in that: the metering controller for electric control cabinet is provided with a current sensor and a voltage signal collection circuit, the signal output ends of the current sensor and the voltage signal collection circuit are connected with the signal input end of the single chip microcomputer through an A/D converter, the signal output end of the single chip microcomputer is connected with an interface circuit through a photoelectric coupler, and the control end of the single chip microcomputer is connected with a power supply relay of a control power supply line.
Description
Technical field: the utility model relates to a kind of metering control of electrical control cubicles.
Background technology: the metering control circuit structure complexity of existing electrical control cubicles, failure rate height.
Summary of the invention: the technical problems to be solved in the utility model provides the metering control of simple, the reliable electrical control cubicles of a kind of circuit structure.Technical scheme: a kind of metering control of electrical control cubicles, constitute by single-chip microcomputer etc., it is characterized in that: have current sensor, voltage signal acquisition circuit, the signal output part of current sensor, voltage signal acquisition circuit connects the signal input part of single-chip microcomputer through A/D converter, the signal output part of single-chip microcomputer is through photoelectric coupling circuit connection interface circuit, and the control termination of single-chip microcomputer is controlled the relay of supply line's power supply.Beneficial effect: the utility model circuit structure is simple, and is reliable.
Description of drawings: accompanying drawing is circuit theory diagrams of the present utility model.
Embodiment: as shown in the figure, has the voltage signal acquisition circuit that the current sensor U1 that is arranged in the supply line, resistance R 1, R2 constitute, the signal output part of current sensor U1 and voltage signal acquisition circuit meets A/D converter U2, A/D converter meets single-chip microcomputer U3, the signal output part of single-chip microcomputer is through photoelectric coupling circuit U4 connection interface circuit U 5, the signal input part of the control termination switching circuit of single-chip microcomputer, triode T1～T4, diode D1～D4 constitute switching circuit, and the signal output part of switching circuit connects the relay K of control supply line power supply.During enforcement, relay can be selected magnetic latching relay for use.After resistance R 3, the R4 series connection, in parallel with the contact K-1 of relay K on being arranged at supply line, the common port of two resistance meets single-chip microcomputer U3.
During work, electric current, voltage signal that current sensor U1, voltage signal acquisition circuit collect are input to single-chip microcomputer U3 through A/D converter, and single-chip microcomputer U3 is handled by the signal that collects after photoelectric coupling circuit U4, interface circuit U5 send to the management computer of peripheral hardware.When supply line need cut off the power supply, the management computer of peripheral hardware sent instruction to single-chip microcomputer U3, and single-chip microcomputer U3 control end sends signal, and the relay K action disconnects corresponding contact K-1.When contact K-1 disconnected, the common port output pulse signal of resistance R 3, R4 was sent to single-chip microcomputer U3, and whether single-chip microcomputer U3 realization disconnects contact K-1 is monitored.
Claims (3)
1. the metering control of an electrical control cubicles, constitute by single-chip microcomputer etc., it is characterized in that: have current sensor, voltage signal acquisition circuit, the signal output part of current sensor, voltage signal acquisition circuit connects the signal input part of single-chip microcomputer through A/D converter, the signal output part of single-chip microcomputer is through photoelectric coupling circuit connection interface circuit, and the control termination of single-chip microcomputer is controlled the relay of supply line's power supply.
2. the metering control of electrical control cubicles according to claim 1 is characterized in that: the signal input part of the control termination switching circuit of single-chip microcomputer, the signal output part of switching circuit connect the relay of control supply line power supply.
3. the metering control of electrical control cubicles according to claim 1 and 2 is characterized in that: two resistance series connection back is in parallel with the contact of relay, and the common port of two resistance connects single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211253 CN2543255Y (en) | 2002-04-12 | 2002-04-12 | Metering controller for electric control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211253 CN2543255Y (en) | 2002-04-12 | 2002-04-12 | Metering controller for electric control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2543255Y true CN2543255Y (en) | 2003-04-02 |
Family
ID=33691206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02211253 Expired - Lifetime CN2543255Y (en) | 2002-04-12 | 2002-04-12 | Metering controller for electric control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2543255Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101540492B (en) * | 2009-04-16 | 2011-08-10 | 合肥创源车辆控制技术有限公司 | Intelligent fuse |
-
2002
- 2002-04-12 CN CN 02211253 patent/CN2543255Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101540492B (en) * | 2009-04-16 | 2011-08-10 | 合肥创源车辆控制技术有限公司 | Intelligent fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120412 Granted publication date: 20030402 |