CN217278860U - Monitoring system of electromagnet coil - Google Patents
Monitoring system of electromagnet coil Download PDFInfo
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- CN217278860U CN217278860U CN202220079737.7U CN202220079737U CN217278860U CN 217278860 U CN217278860 U CN 217278860U CN 202220079737 U CN202220079737 U CN 202220079737U CN 217278860 U CN217278860 U CN 217278860U
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- electromagnet coil
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Abstract
The utility model relates to a coil is kept watch on the field, discloses an electro-magnet coil's monitoring system. It includes: the device comprises a low-power-consumption power module, an electromagnet coil control module, an electromagnet coil module, a switch module, a comprehensive protection device module and an electromagnet coil detection module, wherein the positive electrode output end of a direct-current power supply is connected with the switch module and the comprehensive protection device module in parallel, the switch module is connected with the low-power-consumption power module in parallel, the electromagnet coil module and the comprehensive protection device module in parallel, the low-power-consumption power module is connected with the negative electrode output end of the direct-current power supply, the low-power-consumption power module is connected with the electromagnet coil control module, the electromagnet coil control module is connected with the negative electrode input end of the direct-current power supply, the electromagnet coil control module is connected with the electromagnet coil detection module, the electromagnet coil detection module is connected with the electromagnet coil detection module, and the electromagnet coil detection module is connected with the negative electrode input end of the direct-current power supply. By the design of the monitoring system, the attraction and the release of the electromagnet coil are realized, and the safety and the reliability are ensured.
Description
Technical Field
The utility model relates to a coil monitoring field, concretely relates to electro-magnet coil's monitoring system.
Background
At present, with rapid development of science and technology, high-voltage switch cabinets are increasingly applied to lives of people. In a high-voltage switch cabinet, an electromagnet coil is an important component of a switch cabinet in an electric power system, and the electromagnet coil can perform switching-off, switching-on and other operations according to instructions and needs to run safely and reliably for a long time. Because the operating environment of high tension switchgear is abominable, often can meet the influence of environment such as high temperature, low temperature, drying and humidity, also can meet big vibration sometimes, just can make the electro-magnet coil drop easily or open a way, the potential safety hazard of high-voltage leakage and discharge appears. In order to ensure safe and reliable operation of the electromagnet coil, the state of the electromagnet coil is detected in real time for the high-voltage switch cabinet, and whether the electromagnet coil inside the high-voltage switch cabinet has abnormality such as broken wire or poor contact is monitored in real time. However, the systems currently available for monitoring the electromagnet coils have some drawbacks: a large required voltage and current, instability of the monitoring current, an increase in monitoring power consumption, a decrease in monitoring sensitivity, and the like.
Therefore, in view of the above problems, the existing monitoring system for the electromagnet coil is yet to be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming some problems that present electromagnet coil's monitored control system exists, through the design to monitored control system, can realize the voltage range of broad, less electric current, reduce the consumption and improve sensitivity etc.. The switch module is adopted, so that the circuit can be conveniently operated to be switched on or switched off, attraction and release of an electromagnet coil in the electromagnet coil module are facilitated to be driven, and power consumption of the circuit is facilitated to be reduced; by adopting the comprehensive protection device module, whether the electromagnet coil is open-circuited or not can be rapidly monitored, and the safety and reliability of the circuit can be timely ensured; the electromagnet coil detection module and the electromagnet coil control module are adopted to timely detect the electromagnet coil so as to ensure that the state of the electromagnet coil is rapidly detected under the condition of reducing energy consumption; and a low-power-consumption power supply module is adopted to supply the low-power-consumption state to the electromagnet coil control module so as to realize the work of the electromagnet coil detection module in a low-power-consumption state.
The technical scheme of the utility model is specifically as follows:
a monitoring system for an electromagnet coil, the monitoring system comprising: the device comprises a low-power-consumption power supply module, an electromagnet coil control module, an electromagnet coil module, a switch module, a comprehensive protection device module and an electromagnet coil detection module, wherein the positive electrode output end of a direct-current power supply is connected with the input end of the switch module and the input end of the comprehensive protection device module in parallel, the output end of the switch module is connected with the input end of the low-power-consumption power supply module, the input end of the electromagnet coil module and the output end of the comprehensive protection device module in parallel, the negative electrode input end of the low-power-consumption power supply module is connected with the negative electrode output end of the direct-current power supply, the output end of the low-power-consumption power supply module is connected with the input end of the electromagnet coil control module, the negative electrode output end of the electromagnet coil control module is connected with the negative electrode input end of the direct-current power supply, and the output end of the electromagnet coil control module is connected with the first input end of the electromagnet coil detection module, the output end of the electromagnet coil module is connected with the second input end of the electromagnet coil detection module, and the output end of the electromagnet coil detection module is connected with the negative input end of the direct-current power supply.
Furthermore, the electromagnet coil module comprises an electromagnet coil circuit, the electromagnet coil circuit comprises an electromagnet coil L, the input end of the electromagnet coil L is connected with the output end of the switch module, and the output end of the electromagnet coil L is connected with the second input end of the electromagnet coil detection module.
Further, the electromagnet coil L is a single coil electromagnet or a double coil electromagnet.
Further, the switch module comprises a switch circuit, the switch circuit comprises a switch device S1, an input end of the switch device S1 is connected with a positive electrode output end of the direct current power supply, and an output end of the switch device S1 is connected with an input end of the electromagnet coil module.
Further, electromagnet coil detection module includes electromagnet coil detection circuit, electromagnet coil detection circuit includes NMOS pipe Q1 and resistance R1, NMOS pipe Q1's grid is connected electromagnet coil control module's output, DC power supply's negative pole output is connected to NMOS pipe Q1's source electrode, NMOS pipe Q1's drain electrode parallel connection resistance R1's one end with electromagnet coil module's output, DC power supply's negative pole output is connected to resistance R1's the other end.
Further, the fully-mechanized protection device module adopts a fully-mechanized protection device, and the fully-mechanized protection device is used for monitoring an open circuit or a combined circuit in the electromagnet coil module.
Further, the comprehensive protection device comprises a current measurement CT unit, an MCU control unit and an optical coupling unit, wherein the input end of the current measurement CT unit is connected with the positive output end of a direct current power supply, the output end of the current measurement CT unit is connected with the input end of the optical coupling unit, the enabling end of the current measurement CT unit is connected with the first enabling end of the MCU control unit, the enabling end of the optical coupling unit is connected with the second enabling end of the MCU control unit, and the output end of the optical coupling unit is connected with the input end of the electromagnet coil module.
Further, the current measuring CT unit selects a current transformer Rc, the input end of the current transformer Rc is connected with the positive output end of the direct-current power supply, the enabling end of the current transformer Rc is connected with the enabling end of the MCU control unit, and the output end of the current transformer Rc is connected with the input end of the optical coupling unit.
Further, the opto-coupler unit includes optical coupler U1, the positive pole of the emitting diode of optical coupler U1 is connected the output of current transformer Rc, the negative pole of the emitting diode of optical coupler U1 is connected the input of electro-magnet coil module, the collecting electrode of the photosensitive semiconductor tube of optical coupler U1 is connected a second enable end of MCU the control unit, the projecting pole of the photosensitive semiconductor tube of optical coupler U1 is connected another second enable end of MCU the control unit.
Furthermore, the comprehensive protection device module adopts a comprehensive protection device with an alarm function.
Advantageous effects
The utility model discloses a to monitoring system's design, can realize the voltage range of broad, less electric current, reduce the consumption and improve sensitivity etc.. The switch module is adopted, so that the circuit can be conveniently operated to be switched on or switched off, attraction and release of an electromagnet coil in the electromagnet coil module are facilitated to be driven, and power consumption of the circuit is facilitated to be reduced; by adopting the comprehensive protection device module, whether the electromagnet coil is open-circuited or not can be rapidly monitored, and the safety and reliability of the circuit can be timely ensured; the electromagnet coil detection module and the electromagnet coil control module are adopted to timely detect the electromagnet coil so as to ensure that the state of the electromagnet coil is quickly detected under the condition of reducing energy consumption; and a low-power-consumption power supply module is adopted to supply the low-power-consumption state to the electromagnet coil control module so as to realize the work of the electromagnet coil detection module in a low-power-consumption state. The monitoring operation is carried out by adopting the comprehensive protection device module, the power consumption can be reduced, the monitoring current value of the comprehensive protection device is 1mA, the static power consumption of the electromagnet coil control module is less than 0.2mA, meanwhile, the interference to the monitoring current of the comprehensive protection device is reduced, the monitoring circuit is simplified, the cost is reduced, and the reliability is improved; by adopting the electromagnet coil detection module, the problem that the electromagnet coil is not released due to large monitoring current in the monitoring circuit can be solved, the problem that the electromagnet coil cannot be normally monitored due to large impedance and incapability of identification caused by poor contact of the electromagnet coil can be solved, and the monitoring voltage can be improved to a wide voltage range.
Drawings
Fig. 1 is a schematic view of a monitoring system of an electromagnet coil according to the present invention.
Reference numerals: 1. a comprehensive protection device module; 2. an electromagnet coil module; 3. an electromagnet coil detection module; 4. an electromagnet coil control module; 5. a low power consumption power supply module; 6. and a switch module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a monitoring system for an electromagnet coil, the monitoring system comprising: a low power consumption power module 5, an electromagnet coil control module 4, an electromagnet coil module 2, a switch module 6, a comprehensive protection device module 1 and an electromagnet coil detection module 3, wherein the positive output end of a direct current power supply is connected with the input end of the switch module and the input end of the comprehensive protection device module in parallel, the output end of the switch module is connected with the input end of the low power consumption power module, the input end of the electromagnet coil module and the output end of the comprehensive protection device module in parallel, the negative input end of the low power consumption power module is connected with the negative output end of the direct current power supply, the output end of the low power consumption power module is connected with the input end of the electromagnet coil control module, the negative output end of the electromagnet coil control module is connected with the negative input end of the direct current power supply, and the output end of the electromagnet coil control module is connected with the first input end of the electromagnet coil detection module, the output end of the electromagnet coil module is connected with the second input end of the electromagnet coil detection module, and the output end of the electromagnet coil detection module is connected with the negative input end of the direct-current power supply.
The electromagnet coil module comprises an electromagnet coil circuit, the electromagnet coil circuit comprises an electromagnet coil L, the input end of the electromagnet coil L is connected with the output end of the switch module, and the output end of the electromagnet coil L is connected with the second input end of the electromagnet coil detection module.
Wherein, the electromagnet coil L is a single coil electromagnet or a double coil electromagnet.
The switch module comprises a switch circuit, the switch circuit comprises a switch S1, the input end of the switch S1 is connected with the positive electrode output end of the direct-current power supply, and the output end of the switch S1 is connected with the input end of the electromagnet coil module.
Wherein, electromagnet coil detection module includes electromagnet coil detection circuitry, electromagnet coil detection circuitry includes NMOS pipe Q1 and resistance R1, NMOS pipe Q1's gate connection the output of electromagnet coil control module, DC power supply's negative pole output is connected to NMOS pipe Q1's source electrode, NMOS pipe Q1's drain electrode parallel connection resistance R1's one end with the output of electromagnet coil module, DC power supply's negative pole output is connected to resistance R1's the other end.
The fully-mechanized protection device module adopts a fully-mechanized protection device, and the fully-mechanized protection device is used for monitoring an open circuit or a combined circuit in the electromagnet coil module.
Wherein, it includes current measurement CT unit, MCU the control unit and opto-coupler unit to combine to protect the device, the anodal output of DC power supply is connected to the input of current measurement CT unit, the output of current measurement CT unit is connected the input of opto-coupler unit, the messenger of current measurement CT unit holds and connects MCU the first messenger of control unit holds, the messenger of opto-coupler unit holds and connects MCU the second messenger of control unit holds, the output of opto-coupler unit is connected the input of electro-magnet coil module.
The current measuring CT unit is connected with the MCU control unit through a current transformer Rc, the input end of the current transformer Rc is connected with the positive output end of the direct-current power supply, the enabling end of the current transformer Rc is connected with the enabling end of the MCU control unit, and the output end of the current transformer Rc is connected with the input end of the optical coupler unit.
Wherein, the opto-coupler unit includes opto-coupler U1, the anodal of the emitting diode of opto-coupler U1 is connected the output of current transformer Rc, the negative pole of the emitting diode of opto-coupler U1 is connected the input of electromagnet coil module, the collecting electrode of the photosensitive semiconductor of opto-coupler U1 is connected a second enable end of MCU the control unit, the projecting pole of the photosensitive semiconductor of opto-coupler U1 is connected another second enable end of MCU the control unit.
Wherein, the comprehensive protection device module adopts a comprehensive protection device with an alarm function.
The utility model discloses an implement the principle: after the system is electrified, a switch S1 for controlling the attraction state of the electromagnet coil is operated, when a switch S1 is closed, direct current is input into a low-power-consumption power supply module through a switch S1, the low-power-consumption power supply module outputs the processed direct current to the electromagnet coil control module, the electromagnet coil control module supplies power to a grid electrode of an NMOS (N-channel metal oxide semiconductor) tube Q1 to enable the NMOS tube Q1 to be conducted, an electromagnet coil L is connected with a negative electrode output end of a direct current power supply through an NMOS tube Q1, at the moment, the electromagnet coil L attracts, and the electromagnet coil control module switches from driving the electromagnet coil L to keeping the electromagnet coil L to supply power so as to reduce the power consumption of the circuit; when the switch S1 is switched off, direct current cannot supply power to the low-power-consumption power supply module, the NMOS tube Q1 is in a switched-off state, the electromagnet coil L is connected with the negative electrode output end of the direct current power supply through the resistor R1, and at the moment, the electromagnet coil control module releases the electromagnet coil;
in a monitoring state, when the switch S1 is switched off, the current limit in the integrated protection device is 1mA, the static power consumption of the electromagnet coil control module is less than 0.2mA, the electromagnet coil is monitored, the electromagnet coil control module does not output current, and the electromagnet coil does not act; the comprehensive protection device, the electromagnet coil and the resistor R1 form a monitoring loop of the electromagnet coil, and when the electromagnet coil is opened or in poor contact, the comprehensive protection device detects that the current in the loop is small and starts to alarm to output the fault of the electromagnet coil.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A monitoring system for an electromagnet coil, the monitoring system comprising: the device comprises a low-power-consumption power supply module, an electromagnet coil control module, an electromagnet coil module, a switch module, a comprehensive protection device module and an electromagnet coil detection module, wherein the positive electrode output end of a direct-current power supply is connected with the input end of the switch module and the input end of the comprehensive protection device module in parallel, the output end of the switch module is connected with the input end of the low-power-consumption power supply module, the input end of the electromagnet coil module and the output end of the comprehensive protection device module in parallel, the negative electrode input end of the low-power-consumption power supply module is connected with the negative electrode output end of the direct-current power supply, the output end of the low-power-consumption power supply module is connected with the input end of the electromagnet coil control module, the negative electrode output end of the electromagnet coil control module is connected with the negative electrode input end of the direct-current power supply, and the output end of the electromagnet coil control module is connected with the first input end of the electromagnet coil detection module, the output end of the electromagnet coil module is connected with the second input end of the electromagnet coil detection module, and the output end of the electromagnet coil detection module is connected with the negative electrode input end of the direct-current power supply.
2. The monitoring system of an electromagnet coil of claim 1, wherein the electromagnet coil module comprises an electromagnet coil circuit, the electromagnet coil circuit comprises an electromagnet coil L, an input of the electromagnet coil L is connected to an output of the switch module, and an output of the electromagnet coil L is connected to a second input of the electromagnet coil detection module.
3. An electromagnet coil monitoring system according to claim 2 wherein the electromagnet coil L is selected from the group consisting of a single coil electromagnet and a double coil electromagnet.
4. A monitoring system for a solenoid coil according to claim 1 wherein said switching module includes a switching circuit including a switch S1, an input of said switch S1 being connected to a positive output of said dc power supply, an output of said switch S1 being connected to an input of said solenoid coil module.
5. The monitoring system of an electromagnet coil according to claim 1, wherein the electromagnet coil detection module comprises an electromagnet coil detection circuit, the electromagnet coil detection circuit comprises an NMOS transistor Q1 and a resistor R1, a gate of the NMOS transistor Q1 is connected to an output terminal of the electromagnet coil control module, a source of the NMOS transistor Q1 is connected to a negative output terminal of a dc power supply, a drain of the NMOS transistor Q1 is connected in parallel to one end of the resistor R1 and an output terminal of the electromagnet coil module, and the other end of the resistor R1 is connected to a negative output terminal of the dc power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220079737.7U CN217278860U (en) | 2022-01-13 | 2022-01-13 | Monitoring system of electromagnet coil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220079737.7U CN217278860U (en) | 2022-01-13 | 2022-01-13 | Monitoring system of electromagnet coil |
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| CN217278860U true CN217278860U (en) | 2022-08-23 |
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| CN202220079737.7U Active CN217278860U (en) | 2022-01-13 | 2022-01-13 | Monitoring system of electromagnet coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116047377A (en) * | 2023-03-27 | 2023-05-02 | 江苏纳通能源技术有限公司 | Contactor coil detection circuit and method |
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2022
- 2022-01-13 CN CN202220079737.7U patent/CN217278860U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116047377A (en) * | 2023-03-27 | 2023-05-02 | 江苏纳通能源技术有限公司 | Contactor coil detection circuit and method |
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