CN218997378U - Online monitoring device for electrical switch cabinet - Google Patents

Abstract

The utility model relates to the technical field of electric components, in particular to an on-line monitoring device of an electric switch cabinet, which comprises wireless monitoring points which are arranged and installed at the positions of joints and wire clamps of the electric components and metal components, wire connectors, isolating switches, circuit breakers and sleeves, wherein the wireless monitoring points are connected with a data centralized processor powered by a power supply battery through a communication module, and the data centralized processor is installed in a cabinet body; the data centralized processor is electrically connected with a 4G DTU module arranged outside the cabinet body through an RS485 bus; the heat dissipation system comprises a first heat dissipation component arranged in a left heat dissipation cavity and a second heat dissipation component arranged in a right heat dissipation cavity, and the temperature of the cabinet body is reduced after the temperature measurement is detected on line. According to the utility model, temperature, current and environment temperature and humidity data packed by the data centralized processor are transmitted to the Internet of things platform through the 4G DTU module, so that the equipment state of the on-site electrical switch cabinet is perceived.

Description

Online monitoring device for electrical switch cabinet

Technical Field

The utility model relates to the technical field of electrical components, in particular to an online monitoring device of an electrical switch cabinet.

Background

The switch cabinet is used as a device for power receiving and distributing in a power system, plays a key role in switching load current and switching short-circuit current, has functions of control, protection and the like, and is basically subjected to network management to realize closed loop network power supply, and is often installed in an outdoor area in a scattered manner. The electrical switch cabinet is simple to install, and the occupied area of the box body is small, so that the electrical switch cabinet is widely applied to areas such as industrial parks, residential communities, luxury commercial centers and the like for receiving and distributing electric energy. As a main power supply device in a power distribution network, the power distribution network is often directly oriented to users, and whether the power distribution network runs reliably or not directly determines the safety and reliability of power supply.

The electrical switch cabinet is inevitably failed in long-time operation, so that the safety operation of the power distribution network is endangered, and inconvenience is brought to the production and life of people. When the temperature of the joints and clamps of the electrical components and the metal components of the metal-enclosed switchgear such as the electrical switch cabinet is abnormally increased, the ring network disconnection, the power supply interruption, even the fire disaster of the equipment and other severe accidents are caused.

Because the number of the electrical switch cabinets in the power distribution network is numerous, the installation sites are scattered, the operation environments are different, and a manual inspection mode is generally adopted at present, the fault symptoms are difficult to discover in time, and countermeasures are taken. Meanwhile, most of electrical switch cabinets are of closed box-type structures, so that difficulties are brought to detection of operators, a plurality of tiny abnormal signals are difficult to find, and the accuracy of manual regular inspection is also difficult to meet the actual requirements. Once not found and handled in time at the early stages of failure evolution, serious accidents may develop.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides an on-line monitoring device for an electrical switch cabinet.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

an on-line monitoring device of an electrical switch cabinet comprises a cabinet body, wireless monitoring points which are arranged and installed according to the positions of joints and wire clamps of electrical components and metal components in the cabinet body, such as a wire connector, a disconnecting switch, a circuit breaker and a sleeve in the electrical switch cabinet, wherein the wireless monitoring points comprise an infrared temperature sensor and a Hall effect current sensor, and are connected with a data centralized processor powered by a power supply battery through a communication module;

the data centralized processor is electrically connected with a 4G DTU module arranged outside the cabinet body through an RS485 bus, and the 4G DTU module is electrically connected with the Internet of things platform through a communication module;

and the active unit MCU of the data centralized processor is connected with a heat dissipation system installed in the cabinet body through a communication module, and the heat dissipation system comprises a first heat dissipation component arranged in a left heat dissipation cavity and a second heat dissipation component arranged in a right heat dissipation cavity, so that the temperature of the cabinet body after on-line detection and temperature measurement is realized.

Preferably, the data centralized processor and the wireless monitoring point perform close-range wireless communication through a BlueTooth5.0BLE module network;

the data centralized processor comprises a main control unit MCU and a data processing module, and a DHT11 temperature and humidity sensor is further arranged in the data centralized processor and used for collecting temperature and humidity information of the environment in the cabinet body.

Preferably, the first heat dissipation component comprises a left fixed fan driven by a left fixed motor to operate, a first ball screw driven by a left screw motor to operate, a first nut pair matched outside the first ball screw and fixed in the first fixed sleeve, a left motor seat connected with the first fixed sleeve, an upper limit block and a lower limit block installed on the left motor installed on one side of the left motor seat and on the other side of the left motor seat, and a left movable fan controlled by the left motor to operate, wherein the lower limit block corresponds to a lower pressure sensor below, and the upper limit block corresponds to an upper pressure sensor above.

The second heat dissipation assembly comprises a right fixed fan driven by a right fixed motor to operate, a second ball screw driven by a right screw motor to operate, a second nut pair matched outside the ball screw and fixed in the second fixing sleeve, a right motor seat connected with the second fixing sleeve, an upper anti-collision block and a lower anti-collision block installed on the right movable motor installed on one side of the right motor seat and on the other side of the right motor seat, and a right movable fan controlled by the right motor to operate, wherein the lower anti-collision block corresponds to a lower sensor below, and the upper anti-collision block corresponds to an upper sensor above.

Specifically, when the main control unit MCU controls the starting of each motor, the fixed motor and the motor are both used for directly starting corresponding driving fixed fans and movable fans, and the lead screw motor is used for sending out commands after analysis of signals transmitted by the sensors and the inductors and received by the main control unit MCU, so that when the online detection temperature of each key part in the cabinet body is too high, the cooling treatment is carried out on the temperature in the cabinet body by the heat dissipation system, the combined movement of the fixing and reciprocating modes of the fans is realized under the cooperation of the two fixed fans and the movable fans, thereby realizing the rapid and effective cooling treatment on the temperature in the cabinet body, and because the movable fans are used for carrying out reciprocating movement under the action of the ball screw, the uniform and effective cooling treatment on each device in the cabinet body can be realized, thereby realizing the effective cooling on key parts such as the soft connection part of the switch, the cable joint, the soft connection part of the knife switch mechanism, the crimping terminal of the cable accessory and the like, and ensuring the safe and normal operation of the electric switch cabinet.

Preferably, the upper pressure sensor, the lower pressure sensor, the upper sensor and the lower sensor are all in wireless communication connection with the heat dissipation system;

the heat dissipation system comprises a main control unit MCU, and a data comparison module is also arranged in the heat dissipation system.

Specifically, when temperature and current are detected through wireless monitoring points in the electrical switch cabinet, detected signal data are transmitted to the data centralized processor, the analyzed data are also transmitted to the heat dissipation system through the main control unit MCU of the data centralized processor, the heat dissipation system is compared through the data comparison module, and when the detected temperature value is different from the temperature value stored and set in the heat dissipation system, namely, the detected temperature value is larger than the set temperature value, the main control unit MCU in the heat dissipation system controls and starts motors included in the first heat dissipation component and the second heat dissipation component at the moment.

Preferably, the cabinet body is close to the left ventilation window has been seted up on one side inner panel of left side heat dissipation chamber, is close to the right ventilation window has been seted up on one side inner panel of right side heat dissipation chamber, all set up the ventilation hole on the bottom curb plate of left side heat dissipation chamber and right side heat dissipation chamber, because the cabinet body is close to set up left ventilation window on one side inner panel of left side heat dissipation chamber, be close to right ventilation window has been set up on one side inner panel of right side heat dissipation chamber, and the fan is in the operation process, and the air can be through the ventilation window convection current about realizing in the cabinet body, all set up the ventilation hole on the bottom curb plate of left side heat dissipation chamber and right side heat dissipation chamber to under the effect of seting up of ventilation hole, realize the circulation of the internal and external air of cabinet, play the effect of air replacement.

The beneficial effects of the utility model are as follows:

1. in the utility model, a BlueTooth5.0BLE module is selected as a short-range wireless communication mode, a 4G network is selected as a long-range communication mode, a BlueTooth5.0+4G DTU networking scheme based on the electric power Internet of things is designed, a stable wireless transmission function and high anti-interference capability are achieved, and a wireless monitoring node operates in a high-temperature and high-electromagnetic field interference environment of the electric switch cabinet and also has a certain anti-interference capability, so that transmitted data is ensured not to be lost, distorted and interrupted.

2. According to the utility model, temperature, current and environment temperature and humidity data packed by the data centralized processor are transmitted to the Internet of things platform through the 4G DTU module, so that the equipment state of the on-site electrical switch cabinet is perceived, and the on-line monitoring power Internet of things architecture of 'state perception terminal-Internet of things platform-mobile equipment monitoring' is completed.

3. According to the utility model, three discrimination standards of temperature rise, temperature difference and relative temperature difference are added, the running state of the electrical switch cabinet equipment can be judged through three indexes, when the equipment is in a general fault state or no obvious fault sign exists, the temperature prediction model is used for predicting the temperature at the future moment, and the judgment is made on the basis, so that the prediction of the fault development trend is realized so as to be convenient for coping with in advance.

3. According to the utility model, the heat dissipation system operates after receiving the signal data of the data centralized processor, and uniform and effective cooling treatment can be realized on all devices in the cabinet body, so that effective cooling can be realized on the key parts such as joints and wire clamps of electric components and metal components in the cabinet body, wire connector parts, isolating switches, circuit breakers, bushings and the like, and safe and normal operation of the electric switch cabinet is ensured.

4. According to the utility model, through the selection of the data centralized processor integrated with the temperature and humidity sensor, the arrangement quantity of the sensors is reduced, the cost is saved, the real-time monitoring of the temperature and humidity of the environment in the cabinet body is realized, and the information of the temperature and humidity of the environment is accurately acquired, so that the running state of the cabinet body is better mastered, and the occurrence of condensation is prevented.

Drawings

Fig. 1 is a schematic diagram of a front view structure of a heat dissipation system in a cabinet body of an on-line monitoring device for an electrical switch cabinet according to the present utility model;

fig. 2 is a schematic diagram of a front view of a first heat dissipating component of the on-line monitoring device for an electrical switch cabinet according to the present utility model;

fig. 3 is a schematic diagram of a front view of a second heat dissipation assembly of the on-line monitoring device for an electrical switch cabinet according to the present utility model;

fig. 4 is a schematic left-view structural diagram of a first heat dissipation assembly of the on-line monitoring device for an electrical switch cabinet according to the present utility model;

fig. 5 is a schematic top view of a connection structure of a left side fan of the on-line monitoring device for an electrical switch cabinet according to the present utility model;

fig. 6 is a schematic diagram of a left-view structure of a wireless monitoring point of the on-line monitoring device for an electrical switch cabinet provided by the utility model installed in a cabinet body;

fig. 7 is a schematic diagram of a front view structure of a cabinet body and a cabinet door of the on-line monitoring device for an electrical switch cabinet.

In the figure: the intelligent cabinet temperature monitoring system comprises a cabinet body 1, a data centralized processor 2, a right side radiating cavity 3, a second radiating component 4, a wireless monitoring point 5, a first radiating component 6, a left side radiating cavity 7, a left ventilating window 8, a right ventilating window 9 and a cabinet door 10;

a 601 left side movable fan, a 602 left side screw motor, a 603 left side movable motor, a 604 nut pair I, a 605 ball screw I, a 606 left side fixed motor, a 607 left side fixed fan, a 608 left side motor seat, a 609 lower pressure sensor, a 6010 lower limit block, a 6011 fixed sleeve I, a 6012 upper limit block and a 6013 upper pressure sensor;

401 right screw motor, 402 right moving motor, 403 right moving fan, 404 ball screw two, 405 right fixed motor, 406 right fixed fan, 407 upper inductor, 408 upper anti-collision block, 409 right motor base, 4010 lower anti-collision block, 4011 lower inductor, 4012 fixed sleeve two, 4013 nut pair two.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

What is not described in detail in this specification is prior art known to those skilled in the art.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

Examples: referring to fig. 1-7, the on-line monitoring device of the electrical switch cabinet comprises a plurality of wireless monitoring points 5 which are arranged and installed according to the positions of joint joints in a cabinet body 1, wherein the wireless monitoring points 5 are arranged in a data centralized processor 2 powered by a power supply battery through a communication module, the data centralized processor 2 is installed in the cabinet body 1, wherein the power supply battery selects a chargeable 5V lithium battery, has a capacity of up to 1800mAh while keeping a small size, has a residual electric quantity display function, and effectively improves the cruising ability of the wireless monitoring points 5, reduces the battery replacement frequency and improves the working efficiency by adopting a battery power supply mode;

the data centralized processor 2 and the wireless monitoring point 5 are in close-range wireless communication through a Bluetooth5.0BLE module network, the data centralized processor 2 comprises a main control unit MCU and a data processing module, a DHT11 temperature and humidity sensor is further arranged in the data centralized processor 2 and used for collecting temperature and humidity information of the internal environment of the cabinet body 1, the data centralized processor 2 is electrically connected with a 4G DTU module arranged outside the cabinet body 1 through an RS485 bus, and the 4G DTU module is electrically connected with an Internet of things platform through a communication module;

the cabinet body 1 is provided with a plurality of wireless monitoring points 5, and all the wireless monitoring points 5 comprise an infrared temperature sensor and a Hall effect current sensor.

Specifically, in the cabinet body 1 of the electrical switch cabinet, the joints and clamps of the electrical components and the metal components, the wire connector parts such as strain clamps, connecting pipes, parallel groove clamps, T-shaped clamps, equipment clamps and the like, the rotating heads and the knife edges of the isolating switches, the moving contacts and the middle contacts of the circuit breaker, the key parts such as the column heads at the top of the sleeve (or the contact part of the internal outgoing line of the main transformer and the screw rod in the armcap, the current transformer and the soft connection part of the knife rotating shaft) and the like have the phenomenon of overheating at the wiring terminals, so that the wireless monitoring points 5 are arranged nearby the key parts, five wireless monitoring points 5 at five different positions in the cabinet body 1 are selected as shown in the figure 1 in the specification, and a plurality of wireless monitoring points 5 are arranged at the position opposite to the monitoring positions (the number of the wireless monitoring points 5 can be increased or reduced according to the requirement), and then the target view field is covered on the monitoring positions according to the distance coefficient adjustment distance;

aiming at the high-voltage electrified running environment in the cabinet body 1, a non-contact type small infrared temperature sensor is selected to acquire the temperature of each part to be monitored, a BlueTooth5.0BLE module is adopted as a short-range wireless communication mode, a wireless monitoring point 5 mainly comprises a main control unit MCU, an infrared temperature sensor, a Hall effect current sensor, a BlueTooth5.0BLE module and a power supply battery, a wireless monitoring node is used as an information sensing terminal of an online detection system in the application, the wireless monitoring point 5 is arranged near each joint needing to be measured in the cabinet, mainly completed functions are that the temperature value and the load current value are acquired, namely, the temperature value at the monitoring position is detected through the infrared temperature sensor (the infrared temperature sensor utilizes the radiation heat effect, so that the temperature is raised after the detection device receives radiation energy, the performance of one column and the temperature in the sensor is changed), the current value at the monitoring position is detected through the Hall effect current sensor (the Hall effect current sensor is used for current detection, the detected through the Hall effect current sensor is used for generating a magnetic core effect, and the current sensor generates a semiconductor magnetic field with high magnetic field strength, namely, when the magnetic field strength is converted into a high magnetic field strength by the infrared sensor, and the infrared sensor is used for generating high magnetic field strength, and the magnetic field strength is processed by the infrared sensor 2 is used for processing the high-voltage sensor;

the data centralized processor 2 comprises a main control unit MCU and a data processing module, so that data sent to the data centralized processor 2 are transmitted to a 4G DTU module through an RS485 bus after the main control unit MCU receives information and is processed by the data processing module, then the data are transmitted to an upper computer platform of the Internet of things through a 4G network communication connection, a DHT11 temperature and humidity sensor is also built in the data centralized processor 2 and can be used for acquiring environmental temperature and humidity information in the cabinet body 1, the environmental temperature and humidity information acquisition is carried out (the DHT11 temperature and humidity sensor is a temperature and humidity composite sensor with calibrated digital signal output, a special digital module acquisition technology and a temperature and humidity sensing technology are applied, the product is ensured to have extremely high reliability and excellent long-term stability, the sensor comprises a resistive type humidity sensing element and an NTC temperature measuring element and is connected with a high-performance 8-bit singlechip), and after the data processing module is processed, the temperature, load current and the environmental temperature and humidity information are transmitted to the 4G DTU module through the RS485, and then the data are transmitted to the Internet of things through the 4G network communication connection, the upper computer and the Internet of things 2, and the data centralized processor can be transmitted to a plurality of data receiving stations of the Internet of the data centralized processor 2, and a plurality of data receiving stations can be realized, and the data centralized processor receiving function is realized, and a wireless receiving station is realized, and a data receiving station is realized by the data centralized processor 2;

in urban ring network power supply, a group of 2-3 electrical switch cabinets are generally installed at each installation place, monitoring points are often required to be respectively arranged in different rooms in the cabinet body 1, therefore, when a line detection device is installed in each of a plurality of electrical switch cabinets, the RS-485 bus is used as an industrial grade data transmission bus standard, is a bus standard supporting multi-point and two-way communication, namely, a plurality of devices are allowed to be connected on one bus, a one-to-many star network topology is formed, all the electrical switch cabinets can be connected with a 4G DTU module through the RS485 bus, data are transmitted to an Internet of things platform, the Internet of things platform can be related to a PC end, so that state information of the electrical switch cabinets can be accurately mastered, fault hidden danger can be found timely, faults can be judged, timely maintenance can be carried out, and safe operation of the electrical switch cabinets can be ensured.

Referring to the drawings 1-5 in the specification, the active unit MCU is connected with a heat dissipation system installed in the cabinet body 1 through a communication module, the heat dissipation system comprises a first heat dissipation component 6 which is arranged in a left heat dissipation cavity 7 and a second heat dissipation component 4 which is arranged in a right heat dissipation cavity 3, and the temperature reduction of the cabinet body 1 after the on-line detection and temperature measurement is realized.

Judging the fault level according to the temperature measured by the wireless monitoring points and the temperature range corresponding to the fault level, when the fault level of the wireless monitoring point 5 is A level (defined in the embodiment, the following B, C level is similar) or the fault levels of a plurality of wireless monitoring points 5 are A level after the data are received by the MCU for analysis and processing, the starting of a heat dissipation system can be controlled, the heat dissipation and cooling processing is carried out on the temperature in the electrical switch cabinet, and the safe operation of each equipment of the electrical switch cabinet is ensured;

when the fault level of the wireless monitoring point 5 is B level, or the fault level of the plurality of wireless monitoring points 5 is B level, cooling treatment can still be carried out through the heat dissipation system, but when the position of the monitoring point is cooled for 2-3 hours, effective cooling still cannot be achieved, the alarm signal is received by the platform of the Internet of things, the fault site in the electrical switch cabinet is overhauled, and when the fault level of the wireless monitoring point 5 is C level, or the fault level of the plurality of wireless monitoring points C is A level, the alarm signal is directly received, and the site overhauling treatment is carried out.

Referring to fig. 1-2 and 4-5 of the drawings, the first heat dissipating unit 6 includes a left fixed fan 607 driven by a left fixed motor 606, a first ball screw 605 driven by a left screw motor 602, a first nut pair 604 fitted outside the first ball screw 605 and fixed in a first fixed housing 6011, a left motor mount 608 connected to the first fixed housing 6011, an upper stopper 6012 installed on one side of the left motor mount 608, and a lower stopper 6010 installed on the other side, and a left movable fan 601 controlled by the left movable motor 603, wherein the lower stopper 6010 corresponds to a lower pressure sensor 609 below, the upper stopper 6012 corresponds to an upper pressure sensor 6013 above, the first ball screw 605 is installed between the upper plate and the lower plate, the upper sensor is installed below the upper plate, and the lower pressure sensor 609 is installed above the lower plate (the pressure sensor is a device or means capable of sensing a pressure signal and converting the pressure signal into an available output electrical signal according to a certain rule, and the same sensor and sensor is named as the sensor in the same specification for the same sensor and the same specification as the sensor.

Specifically, the left fixed motor 606 can drive the left fixed fan 607 to operate, the left screw motor 602 can drive the first ball screw 605 to rotate, so as to drive the first nut pair 604 to linearly move along the first ball screw 605, under the connection action of the first fixed sleeve 6011, the left motor seat 608, the left movable fan 601 and the left movable motor 603 are driven to move along, the left movable motor 603 drives the left movable fan 601 to rotate, when the left movable motor 603 linearly and rotationally moves along the first ball screw 605, the linear reciprocating motion is controlled by a heat dissipation system according to signals between the pressure sensor and the limiting block, when the lower pressure sensor 609 contacts with the lower limiting block 6010, the left movable fan 601 is controlled to positively rotate, so as to control the first ball screw 605 to move clockwise, after the upper pressure sensor 6013 contacts with the upper limiting block 6012, the main control unit MCU of the heat dissipation system receives signals, controls the left movable fan 602 to reversely rotate and drives the first ball screw 605 to move anticlockwise, so as to control the left movable fan 607 to linearly move along the first ball screw 605, and the left movable fan is controlled by the heat dissipation system to linearly move along the lower limiting block 6010, and the temperature of the left movable fan is cooled down in the cooling system is cooled down state of the cooling cabinet 1.

Referring to fig. 1 and 3 of the drawings, the second heat dissipating unit 4 includes a right fixed fan 406 driven by a right fixed motor 405, a second ball screw 404 driven by a right screw motor 401, a second nut pair 4013 fitted outside the second ball screw 404 and fixed in a second fixing sleeve 4012, a right motor base 409 connected to the second fixing sleeve 4012, an upper crash block 408 and a lower crash block 4010 mounted on one side of the right motor base 409, and a right movable fan 403 controlled by the right movable motor 402, wherein the lower crash block 4010 corresponds to a lower inductor 4011 below, and the upper crash block 408 corresponds to an upper inductor 407 above.

The upper pressure sensor 6013, the lower pressure sensor 609, the upper sensor 407 and the lower sensor 4011 are all in wireless communication connection with a heat dissipation system, the heat dissipation system comprises a main control unit MCU, and a data comparison module is also arranged in the heat dissipation system.

Specifically, the right fixed motor 405 may drive the right fixed fan 406 to operate, the right screw motor 401 may drive the ball screw second 404 to rotate, thereby driving the nut pair second 4013 to make a linear motion along the ball screw second 404, under the connection action of the fixed sleeve second 4012, the right motor seat 409, the right movable fan 403 and the right motor 402 are driven to follow motion, the right movable motor 402 drives the right movable fan 403 to rotate, when the right movable motor 402 makes a linear and rotary motion along the ball screw second 404, the linear reciprocating motion is controlled by the heat dissipation system according to the signal between the inductor and the anti-collision block, when the upper inductor 407 contacts with the upper anti-collision block 408, the right screw motor 401 is controlled to make a positive rotation to drive the ball screw second 404 to make a clockwise motion, thereby controlling the right movable fan 403 in a rotating state to make a downward motion, after the lower inductor 4011 contacts with the lower anti-collision block 0, the main control unit MCU of the heat dissipation system receives the signal, the right movable motor 401 is controlled to make a reverse motion and drives the ball screw second 404 to make a counterclockwise rotary motion, thereby controlling the right movable fan 403 to make a linear motion in a reciprocating motion, thereby realizing a temperature lowering state of the temperature of the reciprocating fan 403 in the reciprocating motion, and the temperature of the upper fan is matched with the upper fan 406;

working principle: when the temperature and the current are detected through the wireless monitoring point 5 in the electrical switch cabinet, the detected signal data are transmitted to the data centralized processor 2, the analyzed data are also transmitted to the heat radiation system through the main control unit MCU of the data centralized processor 2, the heat radiation system is compared through the data comparison module, and when the detected temperature value is different from the temperature value stored and set in the heat radiation system, namely, the detected temperature value is larger than the set temperature value, the main control unit MCU in the heat radiation system controls and starts motors included in the first heat radiation component 6 and the second heat radiation component 4 at the moment;

when the main control unit MCU controls the starting of each motor, the fixed motor and the motor are respectively and directly started to drive the fixed fan and the movable fan to rotate, and the lead screw motor is used for sending out commands after analyzing the signals transmitted by the sensor and the inductor and received by the main control unit MCU, so that when the online detection temperature of each key part in the cabinet body 1 is overhigh, the cooling treatment is carried out on the temperature in the cabinet body 1 by the heat dissipation system, the combined movement of the fixing and reciprocating modes of the fans is realized under the cooperation of the two fixed fans and the movable fans, thereby realizing the rapid and effective cooling treatment on the temperature in the cabinet body 1, and the movable fans are in reciprocating movement under the action of the ball screw, therefore, the uniform and effective cooling treatment on each device in the cabinet body 1 can be realized, the effective cooling on the key parts such as the online detection soft connection parts of the switch, the cable joint, the soft connection part of the knife gate mechanism, the crimping terminal of the cable accessory and the like can also be realized, and the safe and normal operation of the electric switch cabinet can be ensured;

because the inner plate of one side of the cabinet body 1, which is close to the left heat dissipation cavity 7, is provided with the left ventilation window 8, the inner plate of one side, which is close to the right heat dissipation cavity 3, is provided with the right ventilation window 9, in the operation process of the fan, the air can realize left and right convection in the cabinet body 1 through the ventilation windows, the bottom side plates of the left heat dissipation cavity 7 and the right heat dissipation cavity 3 are provided with ventilation holes (the ventilation holes are arranged at the rear side of the cabinet door 10), and under the opening effect of the ventilation holes, the circulation of the air inside and outside the cabinet body 1 is realized, and the air replacement effect is realized;

and when the condensation phenomenon is generated in the electrical switch cabinet due to the operation of equipment, the condensation is removed in the heat dissipation process of the heat dissipation system, and the drying in the electrical switch cabinet body is ensured.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. The on-line monitoring device of the electrical switch cabinet comprises a cabinet body (1) and is characterized by further comprising wireless monitoring points (5) which are arranged and installed according to the positions of electrical components in the cabinet body (1) and the connection positions of the electrical components and metal components and are provided with infrared temperature sensors and Hall effect current sensors, wherein the wireless monitoring points (5) are connected with a data centralized processor (2) powered by a power supply battery through a communication module, and the data centralized processor (2) is installed in the cabinet body (1); the data centralized processor (2) is electrically connected with a 4G DTU module arranged outside the cabinet body (1) through an RS485 bus, and the 4G DTU module is electrically connected with the Internet of things platform through a communication module;

the active unit MCU of the data centralized processor (2) is connected with a heat dissipation system installed in the cabinet body (1) through a communication module, and the heat dissipation system comprises a first heat dissipation component (6) which is arranged in a left heat dissipation cavity (7) and a second heat dissipation component (4) which is arranged in a right heat dissipation cavity (3), so that the cabinet body (1) is subjected to online detection and cooling and condensation removal after fault discrimination.

2. The on-line monitoring device of an electrical switchgear according to claim 1, characterized in that the data centralized processor (2) and the wireless monitoring point (5) perform close-range wireless communication through a bluetooth5.0ble module network;

the data centralized processor (2) comprises a main control unit MCU and a data processing module, and the data centralized processor (2) is also internally provided with a DHT11 temperature and humidity sensor for acquiring temperature and humidity information of the internal environment of the cabinet body (1).

3. The on-line monitoring device of an electrical switch cabinet according to claim 1, wherein the first heat dissipation component (6) comprises a left fixed fan (607) driven by a left fixed motor (606), a first ball screw (605) driven by a left screw motor (602), a second nut (604) which is matched outside the first ball screw (605) and is fixed in a first fixed sleeve (6011), a left motor base (608) connected with the first fixed sleeve (6011), a left motor (603) installed on one side of the left motor base (608) and an upper limit block (6012) and a lower limit block (6010) installed on the other side, and a left movable fan (601) controlled to operate by the left movable motor (603);

wherein, lower stopper (6010) corresponds with lower pressure sensor (609) of below, and upper stopper (6012) corresponds with upper pressure sensor (6013) of top.

4. The on-line monitoring device of an electrical switch cabinet according to claim 3, wherein the second heat dissipation component (4) comprises a right fixed fan (406) driven to operate by a right fixed motor (405), a second ball screw (404) driven to operate by a right screw motor (401), a second nut pair (4013) which is matched outside the second ball screw (404) and is fixed in a second fixing sleeve (4012), a right motor seat (409) connected with the second fixing sleeve (4012), a right motor (402) installed on one side of the right motor seat (409) and an upper anti-collision block (408) and a lower anti-collision block (4010) installed on the other side of the right motor seat (409), and a right movable fan (403) controlled to operate by the right movable motor (402);

wherein the lower anti-collision block (4010) corresponds to the lower inductor (4011) below, and the upper anti-collision block (408) corresponds to the upper inductor (407) above.

5. The on-line monitoring device of an electrical switchgear according to claim 4, wherein the upper pressure sensor (6013), the lower pressure sensor (609), the upper sensor (407) and the lower sensor (4011) are all connected in wireless communication with a heat dissipation system;

the heat dissipation system comprises a main control unit MCU, and a data comparison module is also arranged in the heat dissipation system.

6. The on-line monitoring device of an electrical switch cabinet according to claim 1, wherein a left ventilation window (8) is formed on an inner plate of one side of the cabinet body (1) close to the left side heat dissipation cavity (7), and a right ventilation window (9) is formed on an inner plate of one side close to the right side heat dissipation cavity (3).

7. The on-line monitoring device of an electrical switch cabinet according to claim 6, wherein the bottom side plates of the left side heat dissipation cavity (7) and the right side heat dissipation cavity (3) are provided with ventilation holes.

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