CN212988594U - Power distribution cabinet temperature detection system - Google Patents
Power distribution cabinet temperature detection system Download PDFInfo
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- CN212988594U CN212988594U CN202022439080.4U CN202022439080U CN212988594U CN 212988594 U CN212988594 U CN 212988594U CN 202022439080 U CN202022439080 U CN 202022439080U CN 212988594 U CN212988594 U CN 212988594U
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Abstract
The utility model relates to a switch board temperature detection system, including host system, temperature detection module, wireless radio frequency module, the host computer, overflow detection module, magnetic latching relay module and alarm module, host system adopts MSP430G2553 single chip microcomputer control chip, temperature detection module adopts MLX90640 infrared thermal imaging sensor, wireless radio frequency module adopts E30433T20D radio frequency transceiver module, MSP430G2553 single chip microcomputer control chip carries out wireless data transmission with the host computer through E30433T20D radio frequency transceiver module; the overcurrent detection module comprises an overcurrent mutual inductance coil detection circuit and a comparison circuit; the magnetic latching relay module comprises a magnetic latching relay drive circuit, a magnetic latching relay control circuit and a magnetic latching relay contact; the alarm module comprises a first alarm module and a second alarm module, the first alarm module comprises an audible and visual alarm, and the second alarm module comprises a GPRS/4G wireless communication module and an intelligent terminal. The power distribution cabinet temperature detection system has the characteristics of overcurrent detection and temperature detection.
Description
Technical Field
The utility model relates to a switch board technical field especially relates to a switch board temperature detecting system.
Background
The power distribution cabinet is an important component in a power system and is used for distributing, controlling, detecting and the like electric energy. However, when the current carrying of the traditional power distribution cabinet is too large, the temperature of the power distribution cabinet is easily high, the temperature is too high for a long time, and equipment in the power distribution cabinet is easily aged or damaged.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a switch board temperature detection system with overflow detection and temperature detection.
For realizing the purpose of the utility model, the utility model adopts the following technical scheme:
a power distribution cabinet temperature detection system comprises a main control module, a temperature detection module, a wireless radio frequency module, an upper computer, an overcurrent detection module, a magnetic latching relay module and an alarm module, wherein the main control module adopts an MSP430G2553 single-chip microcomputer control chip, the temperature detection module adopts an MLX90640 infrared thermal imaging sensor, the wireless radio frequency module adopts an E30433T20D radio frequency transceiver module, and the MSP430G2553 single-chip microcomputer control chip performs wireless data transmission with the upper computer through the E30433T20D radio frequency transceiver module;
the overcurrent detection module comprises an overcurrent mutual inductance coil detection circuit and a comparison circuit, wherein the input end of the overcurrent mutual inductance coil detection circuit is connected to the zero line of the input end of the power distribution cabinet, the output end of the overcurrent mutual inductance coil detection circuit is connected with the input end of the comparison circuit, and the output end of the comparison circuit is connected with the MSP430G2553 singlechip control chip;
the magnetic latching relay module comprises a magnetic latching relay drive circuit, a magnetic latching relay control circuit and a magnetic latching relay contact, the magnetic latching relay contact is connected to the output end of the power distribution cabinet in series, and the MSP430G2553 single-chip microcomputer control chip is connected with the magnetic latching relay control circuit through the magnetic latching relay drive circuit;
the alarm module comprises a first alarm module and a second alarm module, the first alarm module comprises an audible and visual alarm, the second alarm module comprises a GPRS/4G wireless communication module and an intelligent terminal, and the intelligent terminal passes through the GPRS/4G wireless communication module and the MSP430G2553 singlechip control chip for wireless communication.
In one embodiment, the magnetic latching relay driving circuit comprises a resistor R1, a resistor R2 and a transistor Q1, the magnetic latching relay control circuit comprises a magnetic latching relay coil K1, a diode D1 and a capacitor C1, the output end of the MSP430G2553 single-chip microcomputer control chip is connected with the first end of the resistor R1, the second end of the resistor R1 is respectively connected with the base of the transistor Q1 and the first end of the resistor R2, the emitter of the transistor Q1 is connected with the second end of the resistor R2, the collector of the transistor Q1 is connected with the first end of the magnetic latching relay coil K1, the second end of the magnetic latching relay coil K1 is respectively connected with a 5V power supply and the first end of the capacitor C1, the second end of the capacitor C1 is connected with ground, and the diode D1 is connected with the magnetic latching relay coil K1 in parallel.
In one embodiment, the overcurrent mutual inductance detection circuit comprises an overcurrent mutual inductance coil and a resistor R3, the comparison circuit comprises a resistor R4, a resistor R5, a resistor R6, a capacitor C2 and an operational amplifier U1, the primary coil of the over-current mutual inductor is connected with the zero line of the input end of the power distribution cabinet, the secondary coil of the over-current mutual inductor is connected with the resistor R3 in parallel, the positive input terminal of the resistor R3 is connected to the non-inverting input terminal of the operational amplifier U1, the negative phase input end of the operational amplifier U1 is respectively connected with the first end of the resistor R4 and the first end of the resistor R5, the second end of the resistor R4 is connected with the output end of the operational amplifier U1, the second end of the resistor R5 is grounded, the capacitor C2 is connected in parallel with the resistor R4, and the output end of the operational amplifier U1 is connected with the MSP430G2553 singlechip control chip through the resistor R6.
Compare in traditional switch board system, the switch board temperature detecting system that this application provided has increased and has flowed current detection module and temperature detection module, can real-time detection switch board circuit overflow the condition and the temperature condition in the switch board, can prevent effectively that the switch board from when the current-carrying is too big, the damage that the high temperature caused it.
Drawings
FIG. 1 is a schematic structural diagram of a temperature detection system of a power distribution cabinet according to an embodiment;
FIG. 2 is a schematic circuit diagram of a magnetic latching relay drive circuit and a magnetic latching relay control circuit of FIG. 1;
fig. 3 is a schematic circuit diagram of the overcurrent mutual inductance detection circuit and the comparison circuit in fig. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present invention, "a plurality" means at least one, e.g., one, two, etc., unless specifically limited otherwise.
Referring to fig. 1, the embodiment provides a temperature detection system of a power distribution cabinet, including a main control module 100, a temperature detection module 200, a wireless radio frequency module 300, an upper computer 400, an overcurrent detection module 500, a magnetic latching relay module 600, and an alarm module 700, where the main control module 100 adopts an MSP430G2553 single-chip microcomputer control chip; the temperature detection module 200 adopts an MLX90640 infrared thermal imaging sensor; the wireless rf module 300 adopts an E30433T20D rf transceiver module, and the MSP430G2553 single-chip microcomputer control chip performs wireless data transmission with the upper computer 400 through the E30433T20D rf transceiver module.
The overcurrent detection module 500 comprises an overcurrent mutual inductance coil detection circuit 510 and a comparison circuit 520, wherein the input end of the overcurrent mutual inductance coil detection circuit 510 is connected to the zero line at the input end of the power distribution cabinet, the output end of the overcurrent mutual inductance coil detection circuit 510 is connected with the input end of the comparison circuit 520, and the output end of the comparison circuit 520 is connected with the MSP430G2553 singlechip control chip. Specifically, referring to fig. 3, the overcurrent mutual inductance detection circuit 510 includes an overcurrent mutual inductance coil and a resistor R3, the comparison circuit includes a resistor R4, a resistor R5, a resistor R6, a capacitor C2 and an operational amplifier U1, a primary coil of the overcurrent mutual inductance coil is connected to a zero line at an input end of the power distribution cabinet, a secondary coil of the overcurrent mutual inductance coil is connected in parallel with the resistor R3, a positive input end of the resistor R3 is connected to a positive input end of the operational amplifier U1, a negative input end of the operational amplifier U1 is connected to a first end of the resistor R4 and a first end of the resistor R5, a second end of the resistor R4 is connected to an output end of the operational amplifier U1, a second end of the resistor R5 is grounded, the capacitor C2 is connected in parallel with the resistor R4, and an output end of the operational amplifier U1 is connected to the MSP 430.
The magnetic latching relay module 600 comprises a magnetic latching relay drive circuit 610, a magnetic latching relay control circuit 620 and a magnetic latching relay contact 630, wherein the magnetic latching relay contact 630 is connected in series with the output end of the power distribution cabinet, and the MSP430G2553 single-chip microcomputer control chip is connected with the magnetic latching relay control circuit 620 through the magnetic latching relay drive circuit 610. Specifically, referring to fig. 2, the magnetic latching relay driving circuit 610 includes a resistor R1, a resistor R2, and a transistor Q1, the magnetic latching relay control circuit 620 includes a magnetic latching relay coil K1, a diode D1, and a capacitor C1, an output terminal (P2.0) of the MSP430G2553 one-chip microcomputer control chip is connected to a first terminal of the resistor R1, a second terminal of the resistor R1 is connected to a base of the transistor Q1 and a first terminal of the resistor R2, an emitter of the transistor Q1 is connected to a second terminal of the resistor R2, a collector of the transistor Q1 is connected to a first terminal of the magnetic latching relay coil K1, a second terminal of the magnetic latching relay coil K1 is connected to a 5V power source and a first terminal of the capacitor C1, a second terminal of the capacitor C1 is connected to a ground, and the diode D1 is connected to the magnetic latching relay coil K1.
In this embodiment, the overcurrent detection module 500 is configured to sense a current value input in the power distribution cabinet, convert the sensed current into a voltage, compare the voltage with a preset threshold value through the operational amplifier U1, and send a comparison result to the MSP430G2553 single-chip microcomputer control chip, where the MSP430G2553 single-chip microcomputer control chip determines whether an overcurrent phenomenon occurs in a line in the power distribution cabinet through the comparison result sent by the comparison circuit 520; the MLX90640 infrared thermal imaging sensor is used for detecting the temperature condition in the power distribution cabinet in real time and sending the detected temperature value to the MSP430G2553 single-chip microcomputer control chip, and the MSP430G2553 single-chip microcomputer control chip compares the received temperature value with a temperature set value to judge whether the temperature in the power distribution cabinet is too high.
The MSP430G2553 single-chip microcomputer control chip can also remotely transmit the current data and the temperature data received in real time to the upper computer 400 through the E30433T20D radio frequency transceiver module, so that an operator can remotely check the state condition of the power distribution cabinet.
When the voltage value received by the comparison circuit 520 is higher than the voltage set value and/or the temperature value received by the MSP430G2553 single-chip microcomputer control chip exceeds the temperature set value, the MSP430G2553 single-chip microcomputer control chip sends a control signal to enable the magnetic latching relay drive circuit 610 to drive the magnetic latching relay control circuit 620 to control the magnetic latching relay contact 630, so that the magnetic latching relay contacts 630 arranged at the output end of the power distribution cabinet and the input end of the electric equipment are disconnected to protect the electric equipment; meanwhile, the MSP430G2553 single-chip microcomputer control chip can also control the alarm module 700 to give a corresponding alarm, specifically, the alarm module 700 comprises a first alarm module (i.e. an on-site alarm module) and a second alarm module (i.e. a remote alarm module), the first alarm module 710 comprises an audible and visual alarm, the second alarm module comprises a GPRS/4G wireless communication module and an intelligent terminal, the intelligent terminal is in wireless communication with the MSP430G2553 single-chip microcomputer control chip through the GPRS/4G wireless communication module, the remote alarm module can remotely send the state information in the power distribution cabinet to the intelligent terminal of an operator, namely, the state information is remotely sent to an electronic product such as a portable mobile phone and the like, so that the operator can be timely informed of the state condition of the current power distribution cabinet, and can conveniently take corresponding measures according.
Compare in traditional switch board system, the switch board temperature detecting system that this embodiment provided has increased and has overflowed detection module 500 and temperature detection module 200, can real-time detection switch board circuit overflow the condition and the temperature condition in the switch board, can prevent effectively that the switch board from when the current-carrying is too big, the damage that the high temperature caused it.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (3)
1. A power distribution cabinet temperature detection system is characterized by comprising a main control module, a temperature detection module, a wireless radio frequency module, an upper computer, an overcurrent detection module, a magnetic latching relay module and an alarm module, wherein the main control module adopts an MSP430G2553 single-chip microcomputer control chip, the temperature detection module adopts an MLX90640 infrared thermal imaging sensor, the wireless radio frequency module adopts an E30433T20D radio frequency transceiver module, and the MSP430G2553 single-chip microcomputer control chip performs wireless data transmission with the upper computer through the E30433T20D radio frequency transceiver module;
the overcurrent detection module comprises an overcurrent mutual inductance coil detection circuit and a comparison circuit, wherein the input end of the overcurrent mutual inductance coil detection circuit is connected to the zero line of the input end of the power distribution cabinet, the output end of the overcurrent mutual inductance coil detection circuit is connected with the input end of the comparison circuit, and the output end of the comparison circuit is connected with the MSP430G2553 singlechip control chip;
the magnetic latching relay module comprises a magnetic latching relay drive circuit, a magnetic latching relay control circuit and a magnetic latching relay contact, the magnetic latching relay contact is connected to the output end of the power distribution cabinet in series, and the MSP430G2553 single-chip microcomputer control chip is connected with the magnetic latching relay control circuit through the magnetic latching relay drive circuit;
the alarm module comprises a first alarm module and a second alarm module, the first alarm module comprises an audible and visual alarm, the second alarm module comprises a GPRS/4G wireless communication module and an intelligent terminal, and the intelligent terminal passes through the GPRS/4G wireless communication module and the MSP430G2553 singlechip control chip for wireless communication.
2. The power distribution cabinet temperature detection system according to claim 1, wherein the magnetic latching relay drive circuit comprises a resistor R1, a resistor R2 and a transistor Q1, the magnetic latching relay control circuit comprises a magnetic latching relay coil K1, a diode D1 and a capacitor C1, the output end of the MSP430G2553 singlechip control chip is connected with the first end of the resistor R1, the second end of the resistor R1 is respectively connected with the base of the triode Q1 and the first end of the resistor R2, the emitter of the transistor Q1 is connected to the second end of the resistor R2 and grounded, the collector of the transistor Q1 is connected to the first end of the magnetic latching relay coil K1, a second end of the magnetic latching relay coil K1 is respectively connected with a 5V power supply and a first end of the capacitor C1, the second end of the capacitor C1 is grounded, and the diode D1 is connected in parallel with the magnetic latching relay coil K1.
3. The power distribution cabinet temperature detection system according to claim 1, wherein the over-current mutual inductance detection circuit comprises an over-current mutual inductance coil and a resistor R3, the comparison circuit comprises a resistor R4, a resistor R5, a resistor R6, a capacitor C2 and an operational amplifier U1, the primary coil of the over-current mutual inductor is connected with the zero line of the input end of the power distribution cabinet, the secondary coil of the over-current mutual inductor is connected with the resistor R3 in parallel, the positive input terminal of the resistor R3 is connected to the non-inverting input terminal of the operational amplifier U1, the negative phase input end of the operational amplifier U1 is respectively connected with the first end of the resistor R4 and the first end of the resistor R5, the second end of the resistor R4 is connected with the output end of the operational amplifier U1, the second end of the resistor R5 is grounded, the capacitor C2 is connected in parallel with the resistor R4, and the output end of the operational amplifier U1 is connected with the MSP430G2553 singlechip control chip through the resistor R6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022439080.4U CN212988594U (en) | 2020-10-28 | 2020-10-28 | Power distribution cabinet temperature detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022439080.4U CN212988594U (en) | 2020-10-28 | 2020-10-28 | Power distribution cabinet temperature detection system |
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| CN212988594U true CN212988594U (en) | 2021-04-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878674A (en) * | 2023-09-05 | 2023-10-13 | 山东济钢众电智能科技有限公司 | Power distribution cabinet temperature measurement alarm system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878674A (en) * | 2023-09-05 | 2023-10-13 | 山东济钢众电智能科技有限公司 | Power distribution cabinet temperature measurement alarm system |
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