CN213397403U - High-voltage board electrical connector overtemperature remote alarm device - Google Patents
High-voltage board electrical connector overtemperature remote alarm device Download PDFInfo
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- CN213397403U CN213397403U CN202022111861.0U CN202022111861U CN213397403U CN 213397403 U CN213397403 U CN 213397403U CN 202022111861 U CN202022111861 U CN 202022111861U CN 213397403 U CN213397403 U CN 213397403U
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Abstract
The utility model provides a high-voltage board electrical connector excess temperature remote alarm device, this high-voltage board electrical connector excess temperature remote alarm device include a plurality of temperature acquisition modules, infrared receiving module and display terminal module, a plurality of temperature acquisition modules are connected on the metallic conductor of three-phase electrical connector annex, when the temperature of monitoring electrical connector reaches the alarm temperature threshold value, transmit alarm signal for this infrared receiving module through infrared ray mode, this infrared receiving module receives the alarm signal that this temperature acquisition module transmitted through the infrared ray mode, and give this display terminal module with alarm signal transmission, this display terminal module is connected in this infrared receiving module, and show alarm information. The high-voltage cabinet electrical connector overtemperature remote alarm device realizes wireless receiving and sending of an electrical connector overtemperature alarm signal in a cabinet by taking infrared rays as a transmission carrier, and can accurately and timely monitor the high-voltage cabinet electrical connector overtemperature alarm signal on line.
Description
Technical Field
The utility model relates to a high voltage live monitoring technology field especially involves a high-voltage board electrical connector excess temperature remote alarm device.
Background
The high-voltage cabinet is important electrical equipment in transformer and distribution stations, and is mainly applied to the voltage class of 35kV and below. The totally-enclosed design of the high-voltage cabinet ensures the operation safety of equipment and brings inconvenience to the abnormal inspection work of the equipment in the cabinet, on one hand, the fault range is expanded because the abnormal heating is caused by the influence of the installation quality and the load change of the electric connector which is the connection part of the electric conductor in the cabinet; on the other hand, along with the realization of unattended transformer substation and power distribution station, the reduction of daily inspection times of the equipment is easy to cause serious accidents such as fire disasters and the like which are caused by the fact that the hidden trouble of the electrical joint can not be found in time.
Aiming at the problems, the temperature alarm of the high-voltage cabinet electrical connector mainly adopts the following methods at present:
1. provided is a wireless temperature measurement method. In the chinese patent application with publication number CN201210092Y, a wireless temperature measuring probe is fixed on a conductor joint to be measured in a cabinet, and a wireless receiving device is placed outside a high-voltage switch cabinet, and transmits a signal through the wireless temperature measuring probe to perform background monitoring, thereby realizing wireless real-time temperature measurement, but when the device is in operation, electromagnetic interference in a metal-enclosed switch cabinet is serious, so that the wireless electromagnetic temperature measuring signal can only transmit a signal through a small-sized glass observation window, thereby reducing the accuracy and reliability of online temperature measurement data, and because the wireless transmitting power in the temperature measuring probe is small, the anti-interference performance is poor, the transmission of the temperature measurement data is often wrong.
2. The optical fiber temperature measuring method comprises the following steps: the optical fiber sensor is fixed on the measured conductor joint, the other end of the optical fiber is connected with the modem by utilizing the insulation characteristic of the optical fiber, and the temperature of the measured conductor joint is measured in real time. Although the optical fiber itself is insulated and non-conductive, dust is likely to adhere to the surface of the optical fiber to cause electric discharge, so that the method is not easy to be used in fields and stations with much dust.
Therefore, the utility model discloses a new high-voltage board electrical connector overtemperature remote alarm device, which solves the technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize being monitored high-voltage board electrical connector overtemperature remote alarm device of the online monitor function of electrical connector overtemperature remote alarm.
The purpose of the utility model can be realized by the following technical measures: the high-voltage board electrical connector overtemperature remote alarm device comprises a plurality of temperature acquisition modules, an infrared receiving module and a display terminal module, wherein the temperature acquisition modules are connected to a metal conductor of a three-phase electrical connector accessory, when the temperature of the electrical connector reaches an alarm temperature threshold value, an alarm signal is transmitted to the infrared receiving module through an infrared mode, the infrared receiving module receives the alarm signal transmitted by the temperature acquisition module through the infrared mode, the alarm signal is transmitted to the display terminal module, and the display terminal module is connected to the infrared receiving module and displays alarm information.
The purpose of the utility model can be realized by the following technical measures:
the infrared receiving module is installed in the high-voltage cabinet, and the temperature acquisition module is fixedly attached to the metal conductor of the three-phase electrical connector accessory.
The temperature acquisition module comprises a temperature sensor, a temperature sensor single chip microcomputer and a first infrared transceiver, wherein the temperature sensor is connected to a circuit board of the temperature sensor single chip microcomputer, when the temperature of the electrical connector is monitored to reach an alarm temperature threshold value, an alarm signal is input to the temperature sensor single chip microcomputer, the temperature sensor single chip microcomputer modulates the alarm signal and ID address information into carrier frequency to be sent to the first infrared transceiver, and the first infrared transceiver transmits the alarm signal with the ID address information to the infrared receiving module in an infrared mode.
The temperature acquisition module further comprises a first key switch, the first key switch is connected to a circuit board of the temperature sensor single chip microcomputer, when the first key switch is pressed for more than 3 seconds, an address signal is input to the temperature sensor single chip microcomputer, the temperature sensor single chip microcomputer modulates the address signal into a carrier frequency and sends the carrier frequency to the first infrared transceiver, the first infrared transceiver is connected to the circuit board of the temperature sensor single chip microcomputer, the carrier frequency is demodulated and compared, then high and low levels are output, address signal waveforms are restored, and then the address signal waveforms are transmitted to the infrared receiving module.
This temperature acquisition module still includes fixation clamp and first casing, and this fixation clamp passes through 4 bolt fastening on this first casing terminal surface, and it has a round hole to open in the middle of this fixation clamp splint face with this first casing fixed contact, and this temperature sensor fixes on this first casing, and this temperature sensor's temperature sensing face passes round hole and splint face keep the level in the middle of this fixation clamp splint.
The temperature acquisition module also comprises a built-in battery, a first LED indicator light and a voltage detection circuit, wherein the built-in battery is connected to a circuit board of the temperature sensor singlechip and provides a working power supply for the temperature sensor singlechip chip; the voltage detection circuit and the first LED indicator light are connected to a circuit board of the temperature sensor single chip microcomputer, the voltage detection circuit detects voltages at two ends of the built-in battery, the temperature sensor single chip microcomputer transmits low-voltage signals when the battery voltage is lower than the working voltage of the single chip microcomputer chip, and the temperature sensor single chip microcomputer lights the first LED indicator light after receiving the low-voltage signals.
The infrared receiving module comprises a second infrared transceiver, a first 485 communication interface and a receiving head single chip microcomputer, wherein the second infrared transceiver is connected to a receiving head single chip microcomputer circuit board, receives an alarm signal with ID address information transmitted by the first infrared transceiver, demodulates and compares the alarm signal with the ID address information, outputs high and low levels, restores the waveform of the alarm signal with the ID address information, and transmits the waveform to the receiving head single chip microcomputer, and the receiving head single chip microcomputer is connected to the first 485 communication interface and transmits the alarm signal with the ID address information to the display terminal module.
The second infrared transceiver receives the address signal, demodulates and compares the signal and outputs high and low levels, restores the address signal waveform and transmits the address signal waveform to the receiving head single chip microcomputer, the receiving head single chip microcomputer randomly generates an 8-bit 2-system ID address signal and then adopts an NEC protocol to perform coding modulation and transmit the address signal to the second infrared transceiver, the second infrared transceiver transmits the ID address signal to the first infrared transceiver in an infrared mode, the first infrared transceiver decodes the ID address signal and transmits the ID address signal to the temperature sensor single chip microcomputer, and the temperature sensor single chip microcomputer stores the ID address information.
The infrared receiving module further comprises 4 magnetic attraction pieces, a second shell and a first power interface, the first power interface is fixed on the second shell and connected to the receiving head single chip microcomputer to provide a working power supply for the infrared receiving module, the 4 magnetic attraction pieces are fixed at the bottom of the second shell, and the infrared receiving module is fixed on the metal inner wall of the high-voltage switch cabinet.
The display terminal module comprises a second 485 communication interface, a display screen, a terminal single chip microcomputer, a second LED lamp and a relay, wherein the second 485 communication interface is connected with the first 485 communication interface and the terminal single chip microcomputer and transmits an alarm signal with ID address information to the terminal single chip microcomputer, the terminal single chip microcomputer is connected with the display screen, the second LED lamp and the relay, the display screen and the second LED lamp are controlled to display alarm address information after the alarm signal with the ID address information is received, and the terminal single chip microcomputer starts the relay to close a contact of the relay and provide an output quantity for an upper computer after the alarm signal with the ID address information is received; and transmitting the alarm signal with the ID address information to an upper computer.
The display terminal module comprises a second power interface, a third shell and a second key switch, the second power interface is fixed on the third shell and connected with a circuit board of the terminal single chip microcomputer, a working power supply is provided for the display terminal module, meanwhile, an external cable is connected with the first power interface to provide a working power supply for the infrared receiving module, and the second key switch is connected with the circuit board of the terminal single chip microcomputer to set functions and display information.
The utility model provides a high-voltage board electrical connector excess temperature remote alarm device, with the direct fixed laminating of temperature acquisition module on A, B, C three-phase electrical connector's metallic conductor, can accurately in time monitor high-voltage board electrical connector excess temperature alarm signal on line, the utility model discloses an infrared receiving module installs in the high-voltage board, has realized that electrical connector excess temperature alarm signal uses the infrared ray to accomplish the wireless receiving and dispatching of signal as the transmission carrier in the cabinet, when having avoided alarm temperature signal to adopt wireless electromagnetic number transmission method, and high-voltage board metal casing can accurately in time monitor high-voltage board electrical connector excess temperature alarm signal on line to the shielding of radio signal and the influence of strong electromagnetic interference in the cabinet to radio signal transmission interference.
Drawings
Fig. 1 is a block diagram of the over-temperature remote alarm device for the high-voltage cabinet electrical connector of the present invention;
fig. 2 is a schematic structural diagram of a temperature acquisition module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an infrared receiving module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display module according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the ID address matching process of the infrared temperature acquisition module of the over-temperature remote alarm device for the high-voltage cabinet electrical connector of the present invention;
fig. 6 is the utility model discloses a high-voltage board electrical connector excess temperature remote alarm device infrared temperature alarm data transmission process's schematic diagram.
Detailed Description
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
As shown in fig. 1, fig. 1 is a block diagram of the over-temperature remote alarm device for the electrical connector of the high-voltage board of the present invention. The high-voltage cabinet electrical joint overtemperature remote alarm device comprises a plurality of temperature acquisition modules 10 used for monitoring the temperature of the tested electrical joint, an infrared receiving module 20 used for receiving the temperature alarm of the electrical joint, and a display terminal module 30 used for checking alarm information and function setting of the alarm information.
In an embodiment, the temperature acquisition module 10 may be installed at the 3-phase cable connector, the 3-phase bus side connector and the load side connector of the circuit breaker, and the like, where heat is likely to be generated (i.e., each high voltage cabinet may be installed with a plurality of temperature acquisition modules, 1 infrared receiving module and 1 display terminal module as required).
The temperature acquisition module 10 performs signal transmission with the infrared receiving module 20 in an infrared ray transmitting manner; as shown in fig. 2, the temperature acquisition module 10 is composed of a temperature sensor 1, an infrared transceiver 2, a temperature sensor single-chip microcomputer 3, a built-in battery 4, a fixing clamp 5, an LED indicator light 10, a key switch 11 and a housing 8.
The fixing clamp 5 on the temperature acquisition module is fixed on the end surface of the shell 8 through 4 bolts, a round hole is formed in the middle of the clamping plate surface of the fixing clamp 5 which is fixedly contacted with the shell 8, and the temperature sensing surface of the temperature sensor 1 can penetrate through the round hole.
As shown in fig. 6, the transmission process of the temperature alarm signal: when the temperature of the tested electric joint reaches the alarm temperature threshold, the normally open contact of the temperature sensor is closed, and a high level signal is input to the singlechip chip; the high level signal is modulated into 38kHZ carrier frequency by a singlechip chip by adopting an NEC infrared remote control protocol and is input to an infrared transmitter, after an infrared receiver on an infrared receiving module receives the signal, the modulated signal is demodulated and compared by an internal circuit of the infrared receiver, then high and low levels are output, the signal waveform of a transmitting end is restored and is transmitted to a receiving head singlechip chip in the infrared receiving module, then the received signal with a unique ID address is transmitted to a terminal singlechip chip through a signal connecting line between a 485 communication interface on the infrared receiving module and a 485 communication interface on a display terminal module, the terminal singlechip respectively displays the address signal through a liquid crystal screen and an LED lamp to indicate which detected electrical connector is heated, and simultaneously starts a relay to obtain 4 paths of opening (dry contact point output) to transmit an over-temperature alarm signal to an upper computer connected with the display terminal module, the overtemperature remote alarm is realized through the existing background monitoring system of the upper computer.
Two ends of the built-in battery 4 are welded on a circuit board (and other components) of the single chip microcomputer to provide working power for the single chip microcomputer chip (and other components);
the voltage detection circuit and the LED indicator lamp are welded on a circuit board 3 of the single chip microcomputer and connected with the single chip microcomputer chip, and are used for detecting the voltages at two ends of the built-in battery in real time and lightening the LED indicator lamp for electric lightening when the battery voltage is lower than the working voltage of the single chip microcomputer chip;
the infrared transceiver and the key switch are respectively welded on a circuit board of the single chip microcomputer, are connected with a chip of the single chip microcomputer and are used for realizing the configuration of the ID address of the temperature acquisition module and sending a temperature alarm infrared signal.
The fixing clamp is fixed on the shell and is used for fixing the temperature acquisition module to a fastener on the tested electrical connector.
As shown in fig. 5, the ID address configuration method includes: the key switch on the temperature acquisition module is pressed for more than 3 seconds, a high level signal is input to the temperature sensor singlechip, the singlechip chip is modulated into a 38kHZ carrier frequency by adopting an NEC infrared remote control protocol and is input to the infrared transmitter, after the infrared receiver on the infrared receiving module receives the infrared transmitting signal, the modulated signal is demodulated and compared by an internal circuit of the infrared receiver and then high and low levels are output, the signal waveform of a transmitting end is restored and is transmitted to a receiving head singlechip chip in the infrared receiving module, the receiving head singlechip chip randomly generates an 8-bit 2-system ID address signal and then adopts the NEC protocol to encode and modulate the signal and output to the infrared transmitter, after receiving the signal, the infrared receiver on the temperature acquisition module decodes the signal and inputs the signal to the singlechip chip on the temperature acquisition module to store the ID address, and the temperature acquisition module has a unique ID address, a prerequisite is provided for the display terminal to recognize this temperature acquisition module.
As shown in fig. 3, the infrared receiving module is composed of an infrared transceiver 6, a magnet 7, a housing 28, a 485 communication interface 9, a receiving head single chip microcomputer 10, and a power interface 19.
The power interface is fixed on the shell 28 and connected with the circuit board of the receiving head single chip microcomputer for providing working power supply for the infrared receiving module.
The infrared transceiver 6 is welded on a circuit board 10 of the receiving head singlechip and is connected with the receiving head singlechip chip.
The 485 communication interface 9 is fixed on the shell 28 and connected with the circuit board of the receiving head singlechip 10.
4 magnetism are inhaled 7 and are fixed in the bottom of casing 28 for fix infrared receiving module on high tension switchgear metal inner wall convenient.
The infrared receiving module 20 is connected with the display terminal module 30 through a cable;
as shown in fig. 4, the display terminal module is composed of a 485 communication interface 29, a power interface 39, a display screen 12, an external connection terminal row 13, an LED lamp 14, a key switch 15, a relay 16, a terminal single chip 17, and a housing 18.
The power interface 39 is fixed on the casing 18 and connected to the circuit board of the terminal single chip 17 for supplying the working power to the display terminal module and supplying the working power to the infrared receiving module by connecting an external cable to the power interface of the infrared receiving module.
The 485 communication interface 29 is fixed on the shell and is respectively connected with the circuit board of the receiving head singlechip and the external wiring terminal row. The 485 communication interface 29 of the display terminal module and the 485 communication interface 9 of the infrared receiving module are connected by a communication line, so that communication between the two modules is realized.
The display screen is connected with the terminal single chip microcomputer and used for displaying the alarm information and facilitating on-site checking of the alarm information.
The key switch is connected with a circuit board of the terminal singlechip and used for setting functions and turning pages of display information.
The external power line, the 485 communication cable and the output wiring terminal (the input end of the upper computer) output by the relay can be conveniently and quickly connected with the internal circuit board through the external wiring terminal row 13. That is, one end of the outer terminal block 13 is connected to the internal circuit, and the other end is connected to the cable.
The relay is fixed on the terminal single-chip microcomputer circuit board and connected with the terminal single-chip microcomputer circuit board, the alarm signal received by the infrared receiving module is transmitted to the display terminal module through the 485 communication interface, and on one hand, the relay is started to close a contact of the relay and provide an output quantity for an upper computer; and on the other hand, the alarm information display device is used for displaying alarm information.
The upper computer also has an ID address, and after the upper computer receives the 'output amount' of the temperature alarm, the upper computer can display a temperature alarm signal, transmit the signal to the background through the existing network transmission means, and display all the alarm signals sent by the upper computer for monitoring by monitoring personnel. Therefore, after the monitoring personnel see that the alarm arrives at the site, the LED indicator lamp on the display terminal module can be used for determining which monitored electrical connector is heated.
The utility model carries out identification and coding before each temperature acquisition module fixed on the tested A, B, C three-phase electrical connector is applied; after each temperature acquisition module reaches an alarm temperature value, infrared rays are emitted through an infrared emission tube on the module; the infrared receiving module installed in the high-voltage board receives the infrared light signal of the alarm and then transmits the infrared light signal to the display terminal module through the 485 communication interface on the module, the LED lamp is used for displaying the positions of the monitored points, which are different from each other, the output port of the relay is used for transmitting the infrared light signal to the upper computer, the remote transmission of the temperature alarm signal is completed through the communication interface of the upper computer, and the online monitoring of the high-voltage board electric connector over-temperature remote alarm is realized.
In one embodiment, the coding and modulation of the temperature acquisition modules adopt NEC coding transmission protocol, the uniqueness of each temperature acquisition module address in the high-voltage cabinet is realized through 8-bit address coding, and 8-bit command codes are modulated through 38kHz carrier frequency. (ID address matching process and Infrared temperature alarm data Transmission Process are shown in FIGS. 5 and 6)
The utility model discloses a high-voltage board electrical joint excess temperature remote alarm device when using, including following step:
(1) the temperature collector module is fixedly packaged in the shell, and the temperature sensing surface of the temperature sensor is directly attached and fixed on the surface of the metal electric conductor near the electric joint to be detected.
(2) And carrying out ID address coding on the temperature collector module.
(3) After each temperature sensor reaches the alarm temperature, the temperature collector module is started to transmit the modulated data information to infrared rays through the infrared ray transmitter for wireless transmission.
(4) On infrared receiving module installed on the high-voltage board inner wall received overtemperature alarm signal and transmitted the display terminal module through 485 communication interface, the liquid crystal display showed alarm information, the LED display lamp corresponded the electric joint who instructs the super temperature point of generating heat, and the relay output connection point of starting simultaneously gives overtemperature alarm transmission for the host computer, realizes overtemperature remote alarm.
Claims (10)
1. The overtemperature remote alarm device for the high-voltage cabinet electrical connector is characterized by comprising a plurality of temperature acquisition modules, an infrared receiving module and a display terminal module, wherein the temperature acquisition modules are connected to a metal conductor of a three-phase electrical connector accessory, when the temperature of the monitored electrical connector reaches an alarm temperature threshold value, an alarm signal is transmitted to the infrared receiving module in an infrared mode, the infrared receiving module receives the alarm signal transmitted by the temperature acquisition modules in an infrared mode, the alarm signal is transmitted to the display terminal module, and the display terminal module is connected to the infrared receiving module and displays alarm information.
2. The high-voltage cabinet electrical connector over-temperature remote alarm device as claimed in claim 1, wherein the infrared receiving module is installed in the high-voltage cabinet, and the temperature collecting module is fixedly attached to the metal conductor of the three-phase electrical connector accessory.
3. The high-voltage cabinet electrical connector over-temperature remote alarm device as claimed in claim 1, wherein the temperature acquisition module comprises a temperature sensor, a temperature sensor single chip microcomputer and a first infrared transceiver, the temperature sensor is connected to a circuit board of the temperature sensor single chip microcomputer, when the temperature of the electrical connector is monitored to reach an alarm temperature threshold value, an alarm signal is input to the temperature sensor single chip microcomputer, the temperature sensor single chip microcomputer modulates the alarm signal and ID address information into carrier frequency to be sent to the first infrared transceiver, and the first infrared transceiver transmits the alarm signal with the ID address information to the infrared receiving module in an infrared mode.
4. The high-voltage board electrical connector over-temperature remote alarm device according to claim 3, wherein the temperature acquisition module further comprises a first key switch, the first key switch is connected to the circuit board of the temperature sensor singlechip, the first key switch inputs an address signal to the temperature sensor singlechip when being pressed for more than 3 seconds, the temperature sensor singlechip modulates the address signal into a carrier frequency and sends the carrier frequency to the first infrared transceiver, the first infrared transceiver is connected to the circuit board of the temperature sensor singlechip, the carrier frequency is demodulated and compared, then a high level and a low level are output, and an address signal waveform is restored and transmitted to the infrared receiving module.
5. The high-voltage cabinet electrical connector over-temperature remote alarm device as claimed in claim 4, wherein the temperature acquisition module further comprises a fixing clip and a first housing, the fixing clip is fixed on the end face of the first housing through 4 bolts, a circular hole is formed in the middle of the clamping face of the fixing clip, which is in fixed contact with the first housing, the temperature sensor is fixed on the first housing, and the temperature sensing face of the temperature sensor passes through the circular hole in the middle of the clamping face of the fixing clip to be kept horizontal with the clamping face.
6. The high-voltage cabinet electrical connector over-temperature remote alarm device as claimed in claim 3, wherein the temperature acquisition module further comprises a built-in battery, a first LED indicator light and a voltage detection circuit, the built-in battery is connected to the circuit board of the temperature sensor singlechip and provides a working power supply for the temperature sensor singlechip chip; the voltage detection circuit and the first LED indicator light are connected to a circuit board of the temperature sensor single chip microcomputer, the voltage detection circuit detects voltages at two ends of the built-in battery, the temperature sensor single chip microcomputer transmits low-voltage signals when the battery voltage is lower than the working voltage of the single chip microcomputer chip, and the temperature sensor single chip microcomputer lights the first LED indicator light after receiving the low-voltage signals.
7. The high-voltage cabinet electrical connector over-temperature remote alarm device as claimed in claim 4, wherein the infrared receiving module comprises a second infrared transceiver, a first 485 communication interface and a receiving head single chip microcomputer, the second infrared transceiver is connected to the receiving head single chip microcomputer circuit board, receives the alarm signal with the ID address information transmitted by the first infrared transceiver, demodulates and compares the alarm signal with the ID address information, outputs high and low levels, restores the alarm signal waveform with the ID address information and transmits the alarm signal waveform to the receiving head single chip microcomputer, and the receiving head single chip microcomputer is connected to the first 485 communication interface and transmits the alarm signal with the ID address information to the display terminal module.
8. The high-voltage board electrical connector over-temperature remote alarm device according to claim 7, wherein the infrared receiving module further comprises 4 magnets, a second housing and a first power interface, the first power interface is fixed on the second housing and connected to the receiving head single chip microcomputer to provide working power for the infrared receiving module, and the 4 magnets are fixed at the bottom of the second housing to fix the infrared receiving module on the metal inner wall of the high-voltage switch cabinet.
9. The high-voltage cabinet electrical connector over-temperature remote alarm device as claimed in claim 7, wherein the display terminal module comprises a second 485 communication interface, a display screen, a terminal single chip microcomputer, a second LED lamp and a relay, the second 485 communication interface is connected to the first 485 communication interface and the terminal single chip microcomputer, an alarm signal with ID address information is transmitted to the terminal single chip microcomputer, the terminal single chip microcomputer is connected to the display screen, the second LED lamp and the relay, after receiving the alarm signal with ID address information, the display screen and the second LED lamp are controlled to display alarm address information, and after receiving the alarm signal with ID address information, the terminal single chip microcomputer starts the relay to close a contact of the relay so as to provide an opening amount for an upper computer; and transmitting the alarm signal with the ID address information to an upper computer.
10. The high-voltage board electrical connector over-temperature remote alarm device according to claim 9, wherein the display terminal module comprises a second power interface, a third housing and a second key switch, the second power interface is fixed on the third housing and connected to the circuit board of the terminal single chip microcomputer, the display terminal module is provided with a working power supply, the first power interface is connected to an external cable to provide a working power supply for the infrared receiving module, and the second key switch is connected to the circuit board of the terminal single chip microcomputer to perform function setting and page turning of display information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022111861.0U CN213397403U (en) | 2020-09-23 | 2020-09-23 | High-voltage board electrical connector overtemperature remote alarm device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022111861.0U CN213397403U (en) | 2020-09-23 | 2020-09-23 | High-voltage board electrical connector overtemperature remote alarm device |
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| CN213397403U true CN213397403U (en) | 2021-06-08 |
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| CN202022111861.0U Active CN213397403U (en) | 2020-09-23 | 2020-09-23 | High-voltage board electrical connector overtemperature remote alarm device |
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