CN204360132U - A kind of safety control system of mine magnetic starter - Google Patents
A kind of safety control system of mine magnetic starter Download PDFInfo
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- CN204360132U CN204360132U CN201520072758.6U CN201520072758U CN204360132U CN 204360132 U CN204360132 U CN 204360132U CN 201520072758 U CN201520072758 U CN 201520072758U CN 204360132 U CN204360132 U CN 204360132U
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- photoelectrical coupler
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Abstract
The utility model relates to Safety of Coal Mine Production device technique field, especially a kind of safety control system of mine magnetic starter.The main body module that it comprises load, switch control module, DC power supplier and is connected between signal source and primary controller, described DC power supplier is that main body module is powered by switch control module, described signal source exports high level and low level to main body module and makes main body module conducting, the high level that described primary controller exports according to main body module and low level control load startup.The utility model utilizes signal source to generate square wave, first photoelectrical coupler and the second photoelectrical coupler be conducting under the high level and low level of square wave respectively, and the height of the level that primary controller then can export according to the 3rd photoelectrical coupler and the 4th photoelectrical coupler determines whether that control load power transmission starts; , power owing to have employed modular DC power supplier meanwhile, make whole system be subject to the impact of external voltage fluctuation very little, so can the reliably working of proof load.
Description
Technical field
The utility model relates to Safety of Coal Mine Production device technique field, especially a kind of safety control system of mine magnetic starter.
Background technology
Along with the development of explosion-proof technology, Control Technique of Microcomputer, magnetic starter is more and more general in the application of down-hole.Owing to there is the flammable and explosive substance such as gas and coal dust in subsurface environment, the electric spark that starter produces when breaking down or electric arc bring hidden danger, so mineral electrical apparatus should adopt essence safety type circuits as far as possible can to downhole production and personal security; According to " safety regulations in coal mine ", the essential safety protection class of magnetic starter should be ib level; The precursor circuit of usual magnetic starter will be designed to essence safety type circuits, but the essential safe type precursor circuit that the magnetic starter of underground coal mine adopts at present adopts guide's transformer and Control usually; Due to the dispersiveness of guide's transformer manufacturing, have impact on the reliability of precursor circuit work and relay adhesive, there is the shortcoming of malfunction and low-voltage startup instability.
Therefore, be necessary to propose improvement project, to ensure the security performance of magnetic starter to existing precursor circuit.
Utility model content
For the deficiency that above-mentioned prior art exists, the purpose of this utility model is the safety control system of the mine magnetic starter providing a kind of structure simple, stable, safe and reliable.
To achieve these goals, the utility model adopts following technical scheme:
A kind of safety control system of mine magnetic starter, the main body module that it comprises load, switch control module, DC power supplier and is connected between signal source and primary controller, described DC power supplier is that main body module is powered by switch control module, described signal source exports high level and low level to main body module and makes main body module conducting, the high level that described primary controller exports according to main body module and low level control load startup;
Described main body module comprises the first photoelectrical coupler, the second photoelectrical coupler, the 3rd photoelectrical coupler and the 4th photoelectrical coupler, the emitter of the light-receiving device of described first photoelectrical coupler connects the negative pole of the collector of the light-receiving device of the second photoelectrical coupler, the positive pole of the light emitting source of the 3rd photoelectrical coupler, the light emitting source of the 4th photoelectrical coupler simultaneously, and the negative pole of the light emitting source of described 3rd photoelectrical coupler is connected with switch control module by the 3rd current-limiting resistance with the positive pole of the light emitting source of the 4th photoelectrical coupler simultaneously;
The collector of the light-receiving device of described first photoelectrical coupler passes through the positive pole connecting signal source of the first current-limiting resistance ground connection, light emitting source, the emitter of the light-receiving device of described second photoelectrical coupler passes through the positive pole connecting signal source of the second current-limiting resistance ground connection, light emitting source, and the emitter of the light-receiving device of described 3rd photoelectrical coupler is connected with primary controller respectively with the emitter of the light-receiving device of the 4th photoelectrical coupler.
Preferably, be connected with two the first phase inverters be arranged in parallel between described first photoelectrical coupler and signal source, between described second photoelectrical coupler and signal source, be connected with second phase inverter.
Preferably, described switch control module comprises and is connected to the 3rd stop button, start button and light emitting diode between current-limiting resistance and DC power supplier successively.
Preferably, described first photoelectrical coupler, the second photoelectrical coupler, the 3rd photoelectrical coupler and the 4th photoelectrical coupler all adopt TLP521 type optocoupler.
Owing to have employed such scheme, the utility model utilizes signal source to generate square wave, first photoelectrical coupler and the second photoelectrical coupler be conducting under the high level and low level of square wave respectively, and the height of the level that primary controller then can export according to the 3rd photoelectrical coupler and the 4th photoelectrical coupler determines whether that control load power transmission starts; , power owing to have employed modular DC power supplier meanwhile, make whole system be subject to the impact of external voltage fluctuation very little, so can the reliably working of proof load; Its system architecture is simple, safe and reliable, stability strong, has very strong practical value.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1, the safety control system of the mine magnetic starter of the present embodiment, it comprises load 1 (i.e. magnetic starter), switch control module 2, DC power supplier 3 and is connected to the main body module 6 between signal source 4 (it can adopt 555 circuit structures) and primary controller 5 (it mainly comprises a single-chip microcomputer); Wherein, DC power supplier 3 by switch control module 2 for main body module 6 provides 5V voltage, signal source 4 exports high level and low level to main body module 6 and makes main body module 6 conducting, and the high level that primary controller 5 exports according to main body module 6 and low level control load 1 start;
The main body module 6 of the present embodiment comprises the first photoelectrical coupler 1A, the second photoelectrical coupler 1B, the 3rd photoelectrical coupler 2A and the 4th photoelectrical coupler 2B, the emitter of the light-receiving device of the first photoelectrical coupler 1A connects the negative pole of the collector of the light-receiving device of the second photoelectrical coupler 1B, the positive pole of the light emitting source of the 3rd photoelectrical coupler 2A, the light emitting source of the 4th photoelectrical coupler 2B simultaneously, and the negative pole of the light emitting source of the 3rd photoelectrical coupler 2A and the positive pole of the light emitting source of the 4th photoelectrical coupler 2B are connected with switch control module 2 by the 3rd current-limiting resistance R3 simultaneously; The collector of the light-receiving device of the first photoelectrical coupler 1A passes through the positive pole connecting signal source 4 of the first current-limiting resistance R1 ground connection, light emitting source, the emitter of the light-receiving device of the second photoelectrical coupler 1B is connected with primary controller 5 with the emitter of the light-receiving device of the 4th photoelectrical coupler 2B respectively by the emitter of the light-receiving device of positive pole connecting signal source the 4, three photoelectrical coupler 2A of the second current-limiting resistance R2 ground connection, light emitting source.
So, utilize signal source 4 can generate amplitude for 5V, frequency is the square wave of 50Hz, first photoelectrical coupler 1A and the second photoelectrical coupler 1B conducting under the high level and low level of square wave respectively, the height of the level that primary controller 5 then can export according to the 3rd photoelectrical coupler 2A and the 4th photoelectrical coupler 2B determines whether that control load 1 power transmission starts, when the 3rd photoelectrical coupler 2A exports the square wave and the square wave of the second photoelectrical coupler 2B output low level that just change, primary controller 5 control load 1 power transmission starts, when the equal output low level square wave of the 3rd photoelectrical coupler 2A and the 4th photoelectrical coupler 2B, the power-off of primary controller 1 control load 1 stops, when both all export the square wave of height change, then primary controller 1 sends fault alarm.Thus, can the effectively normal running of proof load 1 switch and cable short-circuit alarming., power owing to have employed modular DC power supplier 3 meanwhile, make whole system be subject to the impact of external voltage fluctuation very little, so can the reliably working of proof load 1.
Further, for ensureing the stability that square-wave signal exports, between the first photoelectrical coupler 1A and signal source 4, being connected with two the first phase inverters 7 be arranged in parallel, between the second photoelectrical coupler 1B and signal source 4, being connected with second phase inverter 8.
For convenience of controlling the operation of whole system, the switch control module 2 of the present embodiment comprises the stop button STPY, start button STY and the light emitting diode D1 that are connected to successively between the 3rd current-limiting resistance R3 and DC power supplier 3.So, utilize two buttons can carry out operation to whole system and control, utilize light emitting diode D1 then can show action or the duty of whole system intuitively simultaneously;
In addition, for optimizing the function of whole system, the first photoelectrical coupler 1A, the second photoelectrical coupler 1B, the 3rd photoelectrical coupler 2A and the 4th photoelectrical coupler 2B of the present embodiment all adopt TLP521 type optocoupler.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. the safety control system of a mine magnetic starter, it is characterized in that: the main body module that it comprises load, switch control module, DC power supplier and is connected between signal source and primary controller, described DC power supplier is that main body module is powered by switch control module, described signal source exports high level and low level to main body module and makes main body module conducting, the high level that described primary controller exports according to main body module and low level control load startup;
Described main body module comprises the first photoelectrical coupler, the second photoelectrical coupler, the 3rd photoelectrical coupler and the 4th photoelectrical coupler, the emitter of the light-receiving device of described first photoelectrical coupler connects the negative pole of the collector of the light-receiving device of the second photoelectrical coupler, the positive pole of the light emitting source of the 3rd photoelectrical coupler, the light emitting source of the 4th photoelectrical coupler simultaneously, and the negative pole of the light emitting source of described 3rd photoelectrical coupler is connected with switch control module by the 3rd current-limiting resistance with the positive pole of the light emitting source of the 4th photoelectrical coupler simultaneously;
The collector of the light-receiving device of described first photoelectrical coupler passes through the positive pole connecting signal source of the first current-limiting resistance ground connection, light emitting source, the emitter of the light-receiving device of described second photoelectrical coupler passes through the positive pole connecting signal source of the second current-limiting resistance ground connection, light emitting source, and the emitter of the light-receiving device of described 3rd photoelectrical coupler is connected with primary controller respectively with the emitter of the light-receiving device of the 4th photoelectrical coupler.
2. the safety control system of a kind of mine magnetic starter as claimed in claim 1, it is characterized in that: be connected with two the first phase inverters be arranged in parallel between described first photoelectrical coupler and signal source, between described second photoelectrical coupler and signal source, be connected with second phase inverter.
3. the safety control system of a kind of mine magnetic starter as claimed in claim 1, is characterized in that: described switch control module comprises and is connected to the 3rd stop button, start button and light emitting diode between current-limiting resistance and DC power supplier successively.
4. the safety control system of a kind of mine magnetic starter according to any one of claim 1-3, is characterized in that: described first photoelectrical coupler, the second photoelectrical coupler, the 3rd photoelectrical coupler and the 4th photoelectrical coupler all adopt TLP521 type optocoupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072758.6U CN204360132U (en) | 2015-01-30 | 2015-01-30 | A kind of safety control system of mine magnetic starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072758.6U CN204360132U (en) | 2015-01-30 | 2015-01-30 | A kind of safety control system of mine magnetic starter |
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| Publication Number | Publication Date |
|---|---|
| CN204360132U true CN204360132U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520072758.6U Expired - Fee Related CN204360132U (en) | 2015-01-30 | 2015-01-30 | A kind of safety control system of mine magnetic starter |
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| Country | Link |
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| CN (1) | CN204360132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824261A (en) * | 2016-05-04 | 2016-08-03 | 徐州五洋科技股份有限公司 | Intrinsically safe circuit for coal mine electric control switch |
-
2015
- 2015-01-30 CN CN201520072758.6U patent/CN204360132U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824261A (en) * | 2016-05-04 | 2016-08-03 | 徐州五洋科技股份有限公司 | Intrinsically safe circuit for coal mine electric control switch |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20170130 |