CN201796752U - Coil control circuit in permanent magnetic mechanism - Google Patents
Coil control circuit in permanent magnetic mechanism Download PDFInfo
- Publication number
- CN201796752U CN201796752U CN2010202539589U CN201020253958U CN201796752U CN 201796752 U CN201796752 U CN 201796752U CN 2010202539589 U CN2010202539589 U CN 2010202539589U CN 201020253958 U CN201020253958 U CN 201020253958U CN 201796752 U CN201796752 U CN 201796752U
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- module
- coil
- central processing
- control
- coil control
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Abstract
A coil control circuit in a permanent magnetic mechanism belongs to the technical field of electromagnetic control and comprises a power source module, a coil control module and a communication module. The coil control circuit is characterized in that the coil control circuit is provided with a central processing module, a voltage sampling module, keys and a display module, the power source module is connected with the central processing module, the coil control module, the voltage sampling module, the communication module, the keys and the display module respectively, the coil control module consists of a coil, an electrolysis capacitor, a relay and a triode, the central processing module is provided with a central processing unit (CPU) and an RS 485 communication interface, wherein the CPU of the central processing module adopts the C8051F300, and the central processing unit of the central processing module is controlled remotely by the RS485 communication interface. The coil control circuit is simple in structure, stable and accurate in operation, fast in processing and signal output and capable of avoiding voltage fluctuation reliably and guaranteeing normal operation of equipment.
Description
Technical field
The utility model relates to the control circuit of coil in a kind of permanent magnet mechanism, belongs to the Electromagnetic Control technical field.
Background technology
Permanent magnet mechanism is made up of moving iron core, fixed core, permanent magnet, actuating coil, driving shaft five parts, its operation principle is: during combined floodgate, controller control external circuit provides drive current to coil, the magnetic field that coil produces is consistent with the magnetic field that permanent magnet produces, mutual superposition, continuous increase along with electric current, the actuating force that magnetic field produces becomes big gradually, and actuating force increases along with reducing of magnetic gap, when actuating force reaches a certain degree, the most moving iron core is shifted closing position onto, is to keep closing a floodgate by the attraction between magnetic force after the adhesive; During separating brake, provide a reverse little electric current to coil, the magnetic field that this electric current produces is opposite with the magnetic field that permanent magnet produces, and has slackened the magnetic field of ferromagnetic circuit, when magnetic force during less than closing retention force, the moving iron core of the pushing mechanism of making a concerted effort moves to the separating brake direction and finishes separating brake.Because permanent magnet mechanism constitutes simple, have characteristics such as long-life, highly reliable, non-maintaining, efficient electricity-saving, and will be along with the enforcement of national energy saving policy, the permanent magnetism technology was extensively applied to fields such as device for switching in recent years.And in the device for switching practical application, to realize above-mentioned action, be to realize by the control circuit of Control work coil.The control of coil is to come the work of trigger winding control circuit actuating coil by a large amount of large power, electrically sub-elements in the existing permanent magnet mechanism, and be the divide-shut brake of realizing permanent magnet mechanism respectively by control closing coil and two coils of switching winding, this deficiency of carrying out its existence of method of coil control by a large amount of large power, electrically sub-elements is to occur being interfered easily when rolling is electric when spread of voltage, the coil circuits for triggering can erroneous trigger occur because of the variation of electric current, cause the permanent magnet mechanism malfunction, can burn electronic component when serious, and responsiveness is slower, can not guarantee the long-term stability of equipment, normal operation.
Summary of the invention
The purpose of this utility model is exactly the deficiency that exists at coil control in the above-mentioned existing permanent magnet mechanism, the control circuit of coil in a kind of permanent magnet mechanism is provided, the enterprising one-step optimization control circuit on existing basis, employing is the control core circuit with the CPU central microprocessor, just can realize the divide-shut brake action by controlling a coil, antijamming capability is strong, has guaranteed that the permanent magnetism coil can steady in a long-term, operation reliably under the spread of voltage environment.
The purpose of this utility model is to realize like this, the control circuit of coil in the permanent magnet mechanism, comprise power module, the coil control module, communication module, it is characterized in that being provided with central processing module, the voltage sample module, button and display module, power module respectively with central processing module, the coil control module, the voltage sample module, communication module, button and display module link to each other, central processing module respectively with the coil control module, the voltage sample module, communication module, button and display module link to each other, the coil control module is by coil, electrochemical capacitor, relay, triode is formed, and central processing module is provided with CPU and RS485 communication interface.
The CPU of described central processing module adopts C8051F300.
The central microprocessor of described central processing module carries out Long-distance Control by the RS485 communication interface.
Power module provides working power for each module, the voltage sample module is sampled to control voltage by the electric resistance partial pressure principle, and sampled signal is sent to central processing module, central processing module adopts high-speed CPU by the voltage of monitoring control in real time, realize the various phenomenons of circuit are carried out respective handling, the coil control module is by coil, electrochemical capacitor, relay, triode is formed, utilize the mutual conversion of the contact of relay to realize the divide-shut brake of coil, be the direct control section of coil in the permanent magnet mechanism, communication module, button and display module can be gathered and revise service data.Central processing module CPU is by handling from voltage sample module controls voltage signal, and go out magnitude of voltage in the shortest Time Calculation, when magnitude of voltage is greater than or less than set point, CPU can carry out the different disposal mode, and realizes the divide-shut brake of coil by the coil control module.During startup, when control voltage less than or greater than set point, the control voltage signal that the CPU master chip samples by processing, the control coil control module realizes that permanent magnet mechanism is failure to actuate.During operate as normal, outage or rolling electricity appear in control voltage, can realize the time-delay disjunction of coil by the time-delay break-time is set.The The whole control circuit constitutes simple, operates steadily.
The utility model central processing module adopts Xinhua's dragon C8051F300 microprocessor (CPU) to carry out signal processing, and 8051 microcontroller kernel speed can reach 25MIPS (system clock is 25MHZ) at a high speed, and computing is accurate, and processing speed is fast, and signal output rapidly.
The coil control module adopts CPU control, by CPU control, and when rolling electricity or outage appear in spread of voltage, 1-3 disjunction second of can delaying time, the film of can avoiding reliably shaking rings, and assurance equipment normally moves.Carry out Long-distance Control by the RS485 communication interface.
Description of drawings:
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is the utility model circuit theory diagrams;
Embodiment
Further specify the utility model in conjunction with the accompanying drawings, as shown in Figure 1,
The control circuit of coil in the permanent magnet mechanism, by power module, the coil control module, communication module, central processing module, the voltage sample module, composition such as button and display module, power module respectively with central processing module, the coil control module, the voltage sample module, communication module, button and display module link to each other, central processing module respectively with the coil control module, the voltage sample module, communication module, button and display module link to each other, the coil control module is by coil, electrochemical capacitor, relay, triode is formed, and central processing module is provided with the RS485 communication interface.Central processing module CPU adopts C8051F300.The central microprocessor of central processing module carries out Long-distance Control by the RS485 communication interface.
Signal transmission between the circuit: energized, power supply is provided for respectively central processing module, communication module, coil control module, voltage sampling circuit through the processing of power module.The control voltage sampling signal enters central cpu through signal processing and handles, and the signal after the processing is sent to the coil control module, realizes the action of the permanent magnet mechanism of controlling simultaneously.
As shown in Figure 2, connect the control power supply, be divided into three tunnel: the first coil energy storage to the coil control module after the rectification circuit of power supply through power module, electrochemical capacitor charges.The second tunnel process resistance R 2 and R3 voltage divider principle are sampled to control voltage, and a control voltage signal is sent into CPU.Third Road is that the input switch power supply is elementary, produces different voltage by Switching Power Supply, wherein one the tunnel voltage is provided directly for central processing module master controller C8051F300 for producing direct current 5V voltage through the voltage that the processing of voltage stabilizing chip obtains direct current 3V.Two the tunnel provide power supply directly for the coil of coil control module relay for producing direct current 18V voltage.
When the circuit energized, the control potential circuit carries out voltage sample, and sampled signal input CPU, Switching Power Supply work simultaneously, and provide operating voltage and relay coil that operating voltage is provided to CPU; Control voltage is within range of set value, and CPU sends switching signal, triode Q2 conducting, and relay K M1 work, normally closed point becomes battle, often opens to become close point, the major loop conducting, permanent magnet mechanism closes a floodgate.
When control voltage was below or above set point, microprocessor did not provide switching signal, and triode Q2 not turn-on relay does not work, not conducting of major loop, and permanent magnet mechanism does not close a floodgate.
When permanent magnet mechanism during in normal operation, the control overtension appears, and the voltage sample module is the voltage signal input CPU that samples, CPU sends sub-gate signal, triode Q2 conducting, relay K M1 coil working, the normal battle becomes close point, and major loop disconnects, the permanent magnet mechanism separating brake.Rolling electricity or outage appear in control voltage, the voltage sample module is the signal input CPU that samples, CPU realizes delaying time by wire jumper between R13 or the R14 and sends sub-gate signal, triode Q2 conducting, relay K M1 coil working, the normal battle becomes close point, and major loop disconnects, permanent magnet mechanism time-delay 1-3 disjunction second.
Carry out Long-distance Control by the RS485 communication interface.
Claims (3)
1. the control circuit of coil in the permanent magnet mechanism, comprise power module, the coil control module, communication module, it is characterized in that being provided with central processing module, the voltage sample module, button and display module, power module respectively with central processing module, the coil control module, the voltage sample module, communication module, button and display module link to each other, central processing module respectively with the coil control module, the voltage sample module, communication module, button and display module link to each other, the coil control module is by coil, electrochemical capacitor, relay, triode is formed, and central processing module is provided with CPU and RS485 communication interface.
2. the control circuit of coil in the permanent magnet mechanism according to claim 1 is characterized in that the CPU of described central processing module adopts C8051F300.
3. the control circuit of coil in the permanent magnet mechanism according to claim 1 is characterized in that the central microprocessor of described central processing module carries out Long-distance Control by the RS485 communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202539589U CN201796752U (en) | 2010-07-02 | 2010-07-02 | Coil control circuit in permanent magnetic mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202539589U CN201796752U (en) | 2010-07-02 | 2010-07-02 | Coil control circuit in permanent magnetic mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201796752U true CN201796752U (en) | 2011-04-13 |
Family
ID=43851654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202539589U Expired - Lifetime CN201796752U (en) | 2010-07-02 | 2010-07-02 | Coil control circuit in permanent magnetic mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201796752U (en) |
-
2010
- 2010-07-02 CN CN2010202539589U patent/CN201796752U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110413 |
|
| CX01 | Expiry of patent term |