Power distribution cabinet with real-time state monitoring function

Abstract

The invention relates to the technical field of intelligent power grid devices, in particular to a power distribution cabinet with a real-time state monitoring function, which comprises a power supply main cabinet, an automatic change-over switch is mounted on the inner side of the power supply main cabinet, and the lower end of the automatic change-over switch is fixedly connected with an insulating bracket; the automatic change-over switch comprises a power supply main cabinet, the power supply main cabinet is provided with an insulation support, the lower end of the insulation support is provided with a disconnection mechanism used for disconnecting a broken bus, the inner side of the power supply main cabinet is fixedly connected with a guide rail, and the inner side of the power supply main cabinet is provided with a detection mechanism used for detecting the bus. The automatic change-over switch captures anomalies such as overcurrent and short circuit in real time through a built-in sensor, and automatic disconnection is rapidly completed; under an extreme condition, even if the sensor is damaged, the upper joint and the lower joint can be driven by the mechanism to be accurately staggered, so that reliable disconnection of a bus loop is realized, and potential safety hazards of manual operation in a high-voltage environment are thoroughly avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smart grid devices, in particular to a power distribution cabinet with real-time state monitoring function. BACKGROUND

[0002] In the construction of smart grid, the power distribution cabinet as the core power distribution device needs to meet the core needs of real-time state perception, fault safety disconnection and efficient operation and maintenance. However, the existing technology has the following key defects.

[0003] Firstly, the fault disconnection relies on the single mechanism of automatic transfer switch. When the built-in sensor is damaged due to overcurrent, manual intervention is needed to disconnect the high-voltage bus, which has high operation risk, and the disconnection mechanism lacks double insulation protection, which is easy to be disturbed by current and cause action failure. Secondly, the monitoring of the bus is mostly limited to single current or voltage parameters, and the synchronous detection of interface contact state, insulation layer integrity and other hidden dangers is not realized, which has monitoring blind area and is difficult to adapt to the full-dimensional state control demand of smart grid. Thirdly, the bus interface is easy to accumulate dust and oxide layer, which needs to be manually disassembled and cleaned regularly, and the inspection relies on manual on-site operation, which has low operation efficiency and high cost, and cannot meet the development requirements of intelligent operation and maintenance of smart grid. Therefore, we propose a power distribution cabinet with real-time state monitoring function. SUMMARY

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the present application proposes a power distribution cabinet with real-time state monitoring function.

[0005] The technical scheme adopted by the present application to solve its technical problems is: a power distribution cabinet with real-time state monitoring function, comprising a power supply general cabinet, an automatic transfer switch is installed on the inner side of the power supply general cabinet, an insulation support is fixedly connected to the lower end of the automatic transfer switch, a disconnection mechanism for disconnecting the bus is installed on the lower end of the insulation support, a guide rail is fixedly connected to the inner side of the power supply general cabinet, a detection mechanism for detecting the bus is installed on the inner side of the power supply general cabinet, and a fourth motor is installed on the inner side of the power supply general cabinet through the guide rail.

[0006] Preferably, the disconnecting mechanism comprises a plurality of insulating sleeves, the outer side of the insulating sleeve is provided with a sliding groove, the upper end of the insulating sleeve is fixedly connected with the insulating support, a plurality of insulating sleeves are respectively aligned with the corresponding busbars in front, the inner side of the insulating sleeve is slidably connected with a lower pressing plate, the lower end of the lower pressing plate is fixedly connected with a first sleeve rod, the outer side of the first sleeve rod is fixedly connected with two symmetric upper fixed rods, the front end of the upper fixed rod is rotatably connected with a first connecting rod through a rotating shaft, the front end of the upper fixed rod is rotatably connected with a second connecting rod through a rotating shaft, the front end of the second connecting rod is rotatably connected with a fixed frame through a rotating shaft, the rear end of the fixed frame is fixedly connected with the insulating support, a plurality of first motors are installed on the rear end of the fixed frame, the outer side of the lower pressing plate is fixedly connected with a lower connector, the inner side of the lower connector is slidably connected with the lower busbar, and the lower connector is slidably connected on the inner side of the sliding groove of the insulating sleeve.

[0007] Preferably, the rear end of the first connecting rod is rotatably connected with a third connecting rod through a rotating shaft, the front end of the third connecting rod is fixedly connected with the second connecting rod through a rotating shaft, the rear end of the third connecting rod is rotatably connected with a fourth connecting rod through a rotating shaft, the front end of the fourth connecting rod is rotatably connected with a lower fixed rod through a rotating shaft, the first rotating shaft is fixedly connected on the side close to the two lower fixed rods, the first rotating shaft is slidably connected with the lower pressing plate and the first sleeve rod, the upper end of the first rotating shaft is fixedly connected with an upper pressing plate, the upper pressing plate is slidably connected on the inner side of the insulating sleeve, the outer side of the upper pressing plate is fixedly connected with an upper connector, the inner side of the upper connector is slidably connected with the upper busbar, the lower end of the upper connector is matched with the lower connector, and the upper connector is slidably connected on the inner side of the sliding groove of the insulating sleeve.

[0008] Preferably, the rear end of the fourth connecting rod is rotatably connected with a fifth connecting rod through a rotating shaft, the front end of the fifth connecting rod is fixedly connected with the third connecting rod through a rotating shaft, the rear end of the fifth connecting rod is fixedly connected with a first gear through a rotating shaft, the rear end of the first gear is rotatably connected with the fixed frame, the outer sides of the two fixed frames are engaged, and one of the two fixed frames is fixedly connected with the output shaft of the corresponding first motor.

[0009] Preferably, the detection mechanism comprises an interface detection assembly for detecting the busbar interface, and further comprises a busbar detection assembly for detecting the state of the outer side of the busbar.

[0010] Preferably, the interface detection assembly comprises a mounting guide rail fixedly connected with the output shaft of the fourth motor, a plurality of assembly holes are formed on the outer side of the mounting guide rail, a straight rack is fixedly connected on the upper end of the mounting guide rail, a mounting support is slidably connected on the outer side of the mounting guide rail, a second motor is installed on the front end of the mounting support, and a first industrial camera is installed on the rear end of the mounting support.

[0011] Preferably, the inner side of the mounting bracket is rotatably connected with a second sleeve rod, the inner side of the second sleeve rod is rotatably connected with a second rotating shaft, the lower ends of the second rotating shaft and the second sleeve rod are fixedly connected with mutually symmetrical toothed circular plates, the upper ends of the second rotating shaft and the second sleeve rod are fixedly connected with sweeping bars, the inner side of the mounting bracket is rotatably connected with two second gears, the outer side of the second gear is meshedly connected with the toothed circular plate, and the front end of one of the two second gears is fixedly connected with the output shaft of the second motor.

[0012] Preferably, the front end of the mounting bracket is provided with an electric push rod, the output shaft of the electric push rod penetrates the assembly hole of the mounting rail, the output shaft of the mounting rail has magnetism, the inner side of the mounting bracket is slidably connected with a circular shaft electric pen, the rear end of the circular shaft electric pen is fixedly connected with a magnet, the outer side of the circular shaft electric pen is fixedly connected with a baffle, and the rear end of the circular shaft electric pen is provided with a voltage sensor.

[0013] Preferably, the bus detection assembly comprises a clamp-on ammeter fixedly connected with the mounting bracket, a sliding groove is formed in the inner side of the shell of the clamp-on ammeter, a plurality of third gears are rotatably connected with the sliding groove of the clamp-on ammeter through rotating shafts, and a plurality of third motors are installed at the lower end of the shell of the clamp-on ammeter.

[0014] Preferably, the inner side of the sliding groove of the clamp-on ammeter is slidably connected with an arc-shaped rack, the upper and lower ends of the arc-shaped rack are fixedly connected with limiting sliding strips, the limiting sliding strips are slidably connected to the inner side of the clamp-on ammeter, the outer side of the arc-shaped rack is meshedly connected with the third gears, an assembly groove is formed in the inner side of the arc-shaped rack, a transformer secondary winding is arranged in the inner side of the arc-shaped rack, a transformer iron core is installed in the inner side of the arc-shaped rack, and a second industrial camera is installed on the inner wall of the arc-shaped rack.

[0015] Compared with the prior art, the power distribution cabinet with real-time state monitoring function has the following beneficial effects:

[0016] 1、The double protection design of the automatic transfer switch cooperating with the intelligent emergency disconnecting mechanism can realize reliable disconnection of the bus loop under extreme conditions, and completely avoids the safety hazards of manual operation in a high-voltage environment.

[0017] 2、The application realizes full-dimension and automatic accurate monitoring of the busbar through the cooperative design of the interface detection assembly and the busbar detection assembly: the interface detection assembly captures visual images of the joints and terminals through the first industrial camera to capture interface abnormalities such as looseness and ablation; the busbar detection assembly accurately collects current parameters through the clamp-on ammeter, combines the second industrial camera to surround and detect the body problems such as insulation layer damage and surface oxidation, and simultaneously cooperates with the voltage sensor to collect voltage data, forming a three-dimensional monitoring system of "current + voltage + appearance". Compared with the one-sided monitoring of the prior art, the application can comprehensively cover the core hidden trouble points of the busbar operation, and the detection process is automatically completed without human intervention, avoiding human judgment errors, and greatly improving the monitoring accuracy and comprehensiveness.

[0018] 3、The application simplifies the operation and maintenance process through automatic design: the scanning strip can periodically automatically clean the upper joint and lower joint interfaces to avoid poor contact caused by impurities accumulation without manual disassembly and cleaning; the detection mechanism can realize periodic automatic inspection, real-time collection and uploading of current, voltage and appearance state data, providing accurate support for fault early warning and operation and maintenance scheduling of the smart grid, compared with the manual operation and maintenance mode of the prior art, greatly reducing the frequency and labor intensity of manual intervention, reducing the operation and maintenance cost, and realizing the intelligentization and high efficiency of operation and maintenance work, ensuring the long-term stable operation of the power distribution system. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the application;

[0020] Figure 2 is a schematic diagram of the overall structure of the application Figure One ;

[0021] Figure 3 is a schematic diagram of the overall structure of the application Figure Two ;

[0022] Figure 4 is a schematic diagram of the overall structure of the application Figure One ;

[0023] Figure 5 is a schematic diagram of the overall structure of the application Figure Two ;

[0024] Figure 6 is a schematic diagram of the overall structure of the application ;

[0025] Figure 7 is a schematic diagram of the overall structure of the application

[0026] Figure 8 is a schematic diagram of the overall structure of the application

[0027] Figure 9 It is the overall structure of bus detection assembly sectional view schematic diagram.

[0028] In the figure: 1, power supply cabinet; 2, automatic transfer switch; 3, insulating support; 4, disconnecting mechanism; 41, insulating sleeve; 42, lower pressing plate; 43, first sleeve rod; 44, upper fixed rod; 45, first connecting rod; 46, second connecting rod; 47, fixed frame; 48, third connecting rod; 49, fourth connecting rod; 410, lower fixed rod; 411, first rotating shaft; 412, upper pressing plate; 413, fifth connecting rod; 414, first gear; 415, upper joint; 416, lower joint; 417, first motor; 5, detection mechanism; 51, interface detection assembly; 511, mounting guide rail; 512, straight rack; 513, mounting support; 514, second motor; 515, second rotating shaft; 516, second sleeve rod; 517, clamping toothed disc; 518, sweeping bar; 519, first industrial camera; 5110, second gear; 5111, electric push rod; 5112, magnet; 5113, round shaft electric pen; 5114, baffle; 52, bus detection assembly; 521, clamp ammeter; 522, third gear; 523, third motor; 524, limit slide; 525, arc-shaped rack; 526, second industrial camera; 6, fourth motor. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0030] The following electrical elements are electrically connected through the PLC controller of the peripheral device.

[0031] Please refer to Figures 1-9 A power distribution cabinet with real-time state monitoring function, comprising a power supply cabinet 1, an automatic transfer switch 2 is installed on the inner side of the power supply cabinet 1, the lower end of the automatic transfer switch 2 is fixedly connected with an insulating support 3, the lower end of the insulating support 3 is installed with a disconnecting mechanism 4 for disconnecting the bus, the inner side of the power supply cabinet 1 is fixedly connected with a guide rail, the inner side of the power supply cabinet 1 is installed with a detection mechanism 5 for detecting the bus, and the inner side of the power supply cabinet 1 is installed with a fourth motor 6 through the guide rail.

[0032] In the embodiment, the disconnecting mechanism 4 comprises a plurality of insulating sleeves 41, the outer side of the insulating sleeve 41 is provided with a sliding groove, the upper end of the insulating sleeve 41 is fixedly connected with the insulating support 3, the plurality of insulating sleeves 41 are respectively aligned with the corresponding bus bars in front, the inner side of the insulating sleeve 41 is slidably connected with a lower pressing plate 42, the lower end of the lower pressing plate 42 is fixedly connected with a first sleeve rod 43, the outer side of the first sleeve rod 43 is fixedly connected with two symmetric upper fixed rods 44, the front end of the upper fixed rod 44 is rotatably connected with a first connecting rod 45 through a rotating shaft, the front end of the upper fixed rod 44 is rotatably connected with a second connecting rod 46 through a rotating shaft, the front end of the second connecting rod 46 is rotatably connected with a fixing frame 47 through a rotating shaft, the rear end of the fixing frame 47 is fixedly connected with the insulating support 3, a plurality of first motors 417 are installed at the rear end of the fixing frame 47, the outer side of the lower pressing plate 42 is fixedly connected with a lower connector 416, the inner side of the lower connector 416 is slidably connected with the bus bar below, and the lower connector 416 is slidably connected inside the sliding groove of the insulating sleeve 41.

[0033] Specifically, the insulating sleeve 41 provides a sliding groove for the sliding guidance of the lower pressing plate 42 and the upper pressing plate 412, and at the same time serves as the installation basis of the disconnecting mechanism 4 to ensure the stability of the component operation; the lower pressing plate 42 drives the lower connector 416 to realize the disconnection of the upper connector 415 by sliding; the first sleeve rod 43 is used to connect the lower pressing plate 42 and the upper fixed rod 44 and transmit the power of the first connecting rod 45; the upper fixed rod 44 serves as the connecting carrier of the first connecting rod 45 and the fourth connecting rod 49 to realize the synchronous transmission of power; the first connecting rod 45 receives the power of the third connecting rod 48 and pulls the displacement of the upper fixed rod 44 and the first sleeve rod 43; the second connecting rod 46 provides a fulcrum for the rotation of the third connecting rod 48 through the hinge with the fixing frame 47; the fixing frame 47 is used to fixedly install the first motor 417 and the first gear 414, and at the same time provides overall installation support for the disconnecting mechanism 4; the first motor 417 provides a power source for the disconnecting mechanism 4 and drives the rotation of the first gear 414; the lower connector 416 is in sliding cooperation with the bus bar below, and realizes the on-off control of the bus loop through the engagement / dislocation with the upper connector 415.

[0034] In this embodiment, the rear end of the first connecting rod 45 is rotatably connected to the third connecting rod 48 via a rotating shaft. The front end of the third connecting rod 48 is fixedly connected to the second connecting rod 46 via a rotating shaft. The rear end of the third connecting rod 48 is rotatably connected to the fourth connecting rod 49 via a rotating shaft. The front end of the fourth connecting rod 49 is rotatably connected to the lower fixing rod 410 via a rotating shaft. The two lower fixing rods 410 are fixedly connected to the first rotating shaft 411 on their adjacent sides. The outer side of the first rotating shaft 411 is slidably connected to the lower pressure plate 42 and the first sleeve rod 43. The upper end of the first rotating shaft 411 is fixedly connected to the upper pressure plate 412. The upper pressure plate 412 is slidably connected to the inner side of the insulating sleeve 41. The outer side of the upper pressure plate 412 is fixedly connected to the upper connector 415. The inner side of the upper connector 415 is slidably connected to the upper busbar. The lower end of the upper connector 415 is engaged with the lower connector 416. The upper connector 415 is slidably connected to the inner side of the groove of the insulating sleeve 41.

[0035] Specifically, the third link 48 serves as a power transfer component, linking the first link 45, the second link 46, the fourth link 49, and the fifth link 413 to achieve coordinated multi-link action; the fourth link 49 receives the power from the third link 48, pulling the lower fixed rod 410 and the first rotating shaft 411 to displacement; the lower fixed rod 410 connects the fourth link 49 and the first rotating shaft 411, transmitting power and ensuring the synchronous action of the first rotating shaft 411; the first rotating shaft 411 drives the upper pressure plate 412 to slide along the groove of the insulating sleeve 41, while simultaneously sliding with the lower pressure plate 42 and the first sleeve rod 43 to avoid interference; the upper pressure plate 412 drives the upper connector 415 to achieve engagement / misalignment with the lower connector 416 through sliding; the upper connector 415 slides with the upper busbar, ensuring the busbar passage through precise engagement with the lower connector 416, and achieving circuit disconnection through misalignment, ensuring reliable disconnection.

[0036] In this embodiment, the rear end of the fourth link 49 is rotatably connected to the fifth link 413 via a rotating shaft, the front end of the fifth link 413 is fixedly connected to the third link 48 via a rotating shaft, the rear end of the fifth link 413 is fixedly connected to the first gear 414 via a rotating shaft, the rear end of the first gear 414 is rotatably connected to the fixed frame 47, the outer sides of the two fixed frames 47 mesh with each other, and one of the two fixed frames 47 is fixedly connected to the output shaft of the corresponding first motor 417.

[0037] Specifically, the fifth link 413 converts the rotational power of the first gear 414 into the swinging power of the third link 48 to achieve power transmission; the two meshing first gears 414 achieve synchronous rotation in opposite directions under the drive of the first motor 417, ensuring that the two sets of linkage mechanisms drive the upper pressure plate 412 and the lower pressure plate 42 to slide precisely in opposite directions, ensuring that the upper connector 415 and the lower connector 416 are synchronously misaligned and disconnected.

[0038] In this embodiment, the detection mechanism 5 includes an interface detection component 51 for detecting bus interface, and the detection mechanism 5 also includes a bus detection component 52 for detecting the external state of the bus.

[0039] Specifically, the interface detection component 51 focuses on detecting the contact status and appearance integrity of bus joints and cable terminals, capturing interface anomalies such as loose joints and burns; the bus detection component 52 focuses on the insulation layer status of the bus body and external anomalies such as surface burns / oxidation. The two work together to form a full-dimensional bus detection function, which is adapted to the real-time monitoring needs of smart grids.

[0040] In this embodiment, the interface detection component 51 includes a mounting guide rail 511 fixedly connected to the output shaft of the fourth motor 6. The mounting guide rail 511 has multiple mounting holes on its outer side. A straight rack 512 is fixedly connected to the upper end of the mounting guide rail 511. A mounting bracket 513 is slidably connected to the outer side of the mounting guide rail 511. A second motor 514 is mounted at the front end of the mounting bracket 513, and a first industrial camera 519 is mounted at the rear end of the mounting bracket 513.

[0041] Specifically, the mounting guide rail 511 provides a sliding track for the mounting bracket 513, and its mounting holes are used to cooperate with the electric push rod 5111 to position the mounting bracket 513. At the same time, it is connected to the fourth motor 6 to realize the vertical / horizontal state switching of the detection mechanism 5. The rack 512 meshes with the second gear 5110 to provide a transmission basis for the translation of the mounting bracket 513. The mounting bracket 513 serves as the mounting carrier for the interface detection component 51 and the busbar detection component 52, integrating various detection components. The second motor 514 provides a power source for the translation of the mounting bracket 513 and the rotation of the sweeping bar 518. The first industrial camera 519 is used to acquire visual images of the busbar joints and cable terminals to achieve accurate detection of the interface status.

[0042] In this embodiment, a second sleeve rod 516 is rotatably connected to the inner side of the mounting bracket 513, and a second rotating shaft 515 is rotatably connected to the inner side of the second sleeve rod 516. The lower ends of the second rotating shaft 515 and the second sleeve rod 516 are fixedly connected to mutually symmetrical toothed circular plates 517. The upper ends of the second rotating shaft 515 and the second sleeve rod 516 are fixedly connected to sweeping bars 518. Two second gears 5110 are rotatably connected to the inner side of the mounting bracket 513. The outer side of the second gear 5110 meshes with the toothed circular plate 517. The front end of one of the two second gears 5110 is fixedly connected to the output shaft of the second motor 514.

[0043] Specifically, the second rotating shaft 515 and the second sleeve rod 516 respectively drive a set of sweeping bars 518 to rotate, and the inner rotation of the two is coordinated to avoid interference; the toothed disc 517 meshes with the second gear 5110, transmitting the power of the second motor 514 to the second rotating shaft 515 and the second sleeve rod 516, driving the two sets of sweeping bars 518 to rotate in opposite directions; the sweeping bars 518 clean dust, oxide layer and other impurities at the interface between the upper connector 415 and the lower connector 416 by rotating in opposite directions, avoiding impurities from affecting interface contact and detection accuracy; the two second gears 5110 realize power splitting, synchronously driving the toothed disc 517 and the mounting bracket 513 to translate, improving detection efficiency.

[0044] In this embodiment, an electric push rod 5111 is installed at the front end of the mounting bracket 513. The output shaft of the electric push rod 5111 passes through the mounting hole of the mounting guide rail 511. The output shaft of the mounting guide rail 511 is magnetic. A round shaft electric pen 5113 is slidably connected to the inner side of the mounting bracket 513. A magnet 5112 is fixedly connected to the rear end of the round shaft electric pen 5113. A baffle 5114 is fixedly connected to the outer side of the round shaft electric pen 5113. A voltage sensor is provided at the rear end of the round shaft electric pen 5113.

[0045] Specifically, the output shaft of the electric actuator 5111 passes through the mounting hole of the mounting guide rail 511 to achieve precise positioning of the mounting bracket 513. Its magnetic output shaft drives the round shaft test pen 5113 to slide through the attraction magnet 5112. The round shaft test pen 5113 contacts the busbar and works with the rear voltage sensor to collect busbar voltage parameters. The magnet 5112 is used to cooperate with the magnetic attraction of the output shaft of the electric actuator 5111 to realize the synchronous sliding of the round shaft test pen 5113. The baffle 5114 is used to limit the sliding stroke of the round shaft test pen 5113 to avoid excessive displacement and interference with the busbar or other components. The voltage sensor collects busbar voltage data in real time, providing voltage parameter support for smart grid status monitoring.

[0046] In this embodiment, the bus detection component 52 includes a clamp-on ammeter 521 fixedly connected to the mounting bracket 513. The inner side of the housing of the clamp-on ammeter 521 is provided with a sliding groove. The sliding groove of the clamp-on ammeter 521 is rotatably connected to a plurality of third gears 522 through a rotating shaft. A plurality of third motors 523 are installed at the lower end of the housing of the clamp-on ammeter 521. The output shafts of the third motors 523 are fixedly connected to the third gears 522 at corresponding positions.

[0047] Specifically, the clamp-on ammeter 521 serves as the mounting base for the bus detection assembly 52, and its inner groove provides sliding guidance for the arc-shaped rack 525; the third gear 522 meshes with the arc-shaped rack 525, converting the rotational power of the third motor 523 into the extension and retraction power of the arc-shaped rack 525; the third motor 523 provides the power source for the extension and retraction of the arc-shaped rack 525, and the synchronous drive of multiple third motors 523 ensures the smooth extension and retraction of the arc-shaped rack 525.

[0048] In this embodiment, an arc-shaped rack 525 is slidably connected to the inner side of the groove of the clamp-on ammeter 521. Limiting slide bars 524 are fixedly connected to both the upper and lower ends of the arc-shaped rack 525. The limiting slide bars 524 are slidably connected to the inner side of the clamp-on ammeter 521. The outer side of the arc-shaped rack 525 is meshed with the third gear 522. An assembly groove is opened on the inner side of the arc-shaped rack 525. A secondary winding of a current transformer is provided on the inner side of the arc-shaped rack 525. A current transformer core is installed on the inner side of the arc-shaped rack 525. A second industrial camera 526 is installed on the inner wall of the arc-shaped rack 525.

[0049] Specifically, the arc-shaped rack 525 achieves stable enclosure of the busbar through telescoping, and its inner mounting groove is used to install the secondary winding and core of the current transformer; the limiting slide bar 524 restricts the sliding trajectory of the arc-shaped rack 525 to ensure that it maintains a horizontal posture during telescoping and ensures accurate enclosure with the busbar; the current transformer core and the secondary winding work together to accurately collect the busbar current parameters and provide data for smart grid load monitoring; the second industrial camera 526 surrounds the busbar to collect all-round images and detect abnormalities such as insulation layer damage, surface ablation or oxidation in real time, realizing visual monitoring of the busbar's physical condition.

[0050] Working principle: When the main power cabinet 1 is connected to the smart grid, if there are abnormal current problems such as overcurrent or short circuit in the line, the automatic transfer switch 2 will capture the fault signal in real time through the built-in sensor and quickly complete the automatic disconnection of the circuit to ensure the safety of power grid distribution. In extreme cases, if the sensor inside the automatic transfer switch 2 is damaged due to overcurrent and cannot achieve automatic disconnection, the safety risks of direct manual operation can be avoided. The first motor 417 at the rear end of the fixed frame 47 is started to achieve intelligent emergency disconnection. The output shaft of the first motor 417 drives a first gear 414 to rotate. This first gear 414 meshes with and drives another first gear 414 to rotate synchronously in the opposite direction, thereby driving the fifth link 413 to rotate. The fifth link 413 drives the second link 46 to rotate around the hinge point of the fixed frame 47 through the third link 48. During the rotation of the third link 48, the first link 45 and the fourth link 49 are pulled in conjunction. The first link 45 drives the first sleeve rod 43 to move downward through the upper fixed rod 44, thereby driving the lower pressure plate 42 to slide downward along the inner groove of the insulating sleeve 41. The fourth link 49 drives the first rotating shaft 411 to move upward through the lower fixed rod 410, thereby driving the upper pressure plate 412 to slide upward along the inner groove of the insulating sleeve 41. The upper pressure plate 412 and the lower pressure plate 42 slide opposite to each other along the insulating sleeve 41, so that the upper connector 415 fixed on the upper pressure plate 412 and the lower connector 416 fixed on the lower pressure plate 42 are completely misaligned, realizing reliable disconnection of the bus circuit and cutting off the conduction of fault current; the insulating bracket 3 provides insulating installation support for the disconnection mechanism 4, effectively isolating current interference in the power supply cabinet 1 and ensuring the safety and stability of the mechanical action of the disconnection mechanism 4;

[0051] After the main power cabinet 1 completely disconnects the fault circuit through the disconnection mechanism 4, the fourth motor 6 is started. Its output shaft drives the mounting guide rail 511 to rotate from the initial vertical state to the horizontal working state, so that the detection mechanism 5 is accurately aligned with the bus detection area and the intelligent detection process is started. First, the second motor 514 is started, and its output shaft drives a second gear 5110 to rotate. The second gear 5110 drives the mounting bracket 513 to move smoothly along the mounting guide rail 511 through meshing with the rack 512. At the same time, the second gear 5110 drives the two rack plates 517 to rotate in opposite directions through meshing with the toothed circular plate 517. This, in turn, drives the second sleeve rod 516 and the second rotating shaft 515 to rotate synchronously in opposite directions, and finally drives the two sets of sweeping bars 518 to rotate in opposite directions. The sweeping bar 518 moves to the interface between the upper connector 415 and the lower connector 416 to automatically clean dust, oxide layer and other impurities on the interface surface, so as to avoid impurities affecting the detection accuracy. After cleaning, the second motor 514 stops, and the first industrial camera 519 at the rear of the mounting bracket 513 performs visual image acquisition and detection on the contact status and appearance integrity of the upper and lower busbar connectors and cable terminals, and captures abnormal potentials such as loose connectors and burning.

[0052] Subsequently, multiple third motors 523 located at the lower end of the clamp-on ammeter 521 housing are simultaneously activated. The output shafts of each third motor 523 drive the corresponding third gear 522 to rotate in the same direction. Through the meshing transmission between the third gear 522 and the arc-shaped rack 525, the arc-shaped rack 525 is driven to extend horizontally along the inner sliding groove of the clamp-on ammeter 521. The limiting slide bar 524 ensures that the arc-shaped rack 525 maintains a horizontal posture during the extension and retraction process, ultimately stabilizing the busbar. The current transformer core and secondary winding inside the arc-shaped rack 525 work together to accurately collect the busbar current parameters. At the same time, the second industrial camera 526 on the inner wall of the arc-shaped rack 525 performs all-round image acquisition around the busbar, and detects in real time whether there is damage to the busbar insulation layer or whether there are signs of burning or oxidation on the surface. During this process, the electric push rod 5111 at the front end of the mounting bracket 513 is activated. Its output shaft passes through the mounting hole of the mounting rail 511, achieving precise positioning of the mounting bracket 513. Simultaneously, it magnetically attracts the circular shaft test pen 5113, moving it towards the busbar and bringing it into contact with the busbar. This, in conjunction with the voltage sensor at the rear, allows for the acquisition of busbar voltage parameters. After the test is completed, the output shaft of the electric push rod 5111 reverses and resets, causing the circular shaft test pen 5113 to retract synchronously. This allows the baffle 5114 to engage with the mounting bracket 513, ensuring the safe separation of the circular shaft test pen 5113 from the busbar. The output shaft of the electric push rod 5111 continues to retract and disengage from the mounting hole of the mounting rail 511, completely misaligning with the magnet 5112. This releases the positioning constraint of the mounting bracket 513, allowing it to move along the mounting rail 511 for cyclical testing of the next set of busbars and connectors.

[0053] During normal operation of the main power distribution cabinet 1 connected to the smart grid, the cabinet can periodically perform automated cleaning of the interfaces of the upper connector 415 and lower connector 416 through the sweeping bar 518 to avoid the accumulation of impurities that could lead to poor contact. At the same time, the bus detection component 52 can periodically inspect the bus operating status, collect current and voltage data and bus appearance status information in real time, and provide accurate data support for the status monitoring, fault early warning and operation and maintenance scheduling of the smart grid, so as to ensure the stable, safe and efficient operation of the power grid distribution system.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power distribution cabinet with real-time status monitoring function, comprising a main power cabinet (1), characterized in that: An automatic transfer switch (2) is installed on the inner side of the main power cabinet (1). An insulating bracket (3) is fixedly connected to the lower end of the automatic transfer switch (2). A disconnection mechanism (4) for disconnecting the busbar is installed on the lower end of the insulating bracket (3). A guide rail is fixedly connected to the inner side of the main power cabinet (1). A detection mechanism (5) for detecting the busbar is installed on the inner side of the main power cabinet (1). A fourth motor (6) is installed on the inner side of the main power cabinet (1) via the guide rail.

2. A power distribution cabinet with real-time status monitoring function according to claim 1, characterized in that: The disconnection mechanism (4) includes multiple insulating sleeves (41). The outer side of each insulating sleeve (41) has a sliding groove. The upper end of each insulating sleeve (41) is fixedly connected to the insulating bracket (3). Each insulating sleeve (41) is aligned with the corresponding busbar in front. A lower pressure plate (42) is slidably connected to the inner side of each insulating sleeve (41). A first sleeve rod (43) is fixedly connected to the lower end of the lower pressure plate (42). Two mutually symmetrical upper fixing rods (44) are fixedly connected to the outer side of the first sleeve rod (43). The front end of each upper fixing rod (44) is rotatably connected via a rotating shaft. There is a first connecting rod (45), the front end of the upper fixed rod (44) is rotatably connected to a second connecting rod (46) via a rotating shaft, the front end of the second connecting rod (46) is rotatably connected to a fixed frame (47) via a rotating shaft, the rear end of the fixed frame (47) is fixedly connected to an insulating support (3), a plurality of first motors (417) are installed at the rear end of the fixed frame (47), a lower connector (416) is fixedly connected to the outer side of the lower pressure plate (42), the inner side of the lower connector (416) is slidably connected to the busbar below, and the lower connector (416) is slidably connected to the inner side of the groove of the insulating sleeve (41).

3. A power distribution cabinet with real-time status monitoring function according to claim 2, characterized in that: The rear end of the first connecting rod (45) is rotatably connected to the third connecting rod (48) via a pivot. The front end of the third connecting rod (48) is fixedly connected to the second connecting rod (46) via a pivot. The rear end of the third connecting rod (48) is rotatably connected to the fourth connecting rod (49) via a pivot. The front end of the fourth connecting rod (49) is rotatably connected to the lower fixed rod (410) via a pivot. The two lower fixed rods (410) are fixedly connected to the first pivot (411) on their adjacent sides. The outer side of the first pivot (411) is connected to the lower pressure plate. (42) The first sleeve rod (43) is slidably connected. The upper end of the first rotating shaft (411) is fixedly connected to the upper pressure plate (412). The upper pressure plate (412) is slidably connected to the inner side of the insulating sleeve (41). The outer side of the upper pressure plate (412) is fixedly connected to the upper connector (415). The inner side of the upper connector (415) is slidably connected to the upper busbar. The lower end of the upper connector (415) is engaged with the lower connector (416). The upper connector (415) is slidably connected to the inner side of the groove of the insulating sleeve (41).

4. A power distribution cabinet with real-time status monitoring function according to claim 3, characterized in that: The rear end of the fourth link (49) is rotatably connected to the fifth link (413) via a rotating shaft. The front end of the fifth link (413) is fixedly connected to the third link (48) via a rotating shaft. The rear end of the fifth link (413) is fixedly connected to the first gear (414) via a rotating shaft. The rear end of the first gear (414) is rotatably connected to the fixed frame (47). The outer sides of the two fixed frames (47) mesh with each other. One of the two fixed frames (47) is fixedly connected to the output shaft of the corresponding first motor (417).

5. A power distribution cabinet with real-time status monitoring function according to claim 1, characterized in that: The detection mechanism (5) includes an interface detection component (51) for detecting bus interfaces, and the detection mechanism (5) also includes a bus detection component (52) for detecting the external state of the bus.

6. A power distribution cabinet with real-time status monitoring function according to claim 5, characterized in that: The interface detection component (51) includes a mounting guide rail (511) fixedly connected to the output shaft of the fourth motor (6). The mounting guide rail (511) has multiple mounting holes on its outer side. A straight rack (512) is fixedly connected to the upper end of the mounting guide rail (511). A mounting bracket (513) is slidably connected to the outer side of the mounting guide rail (511). A second motor (514) is mounted at the front end of the mounting bracket (513). A first industrial camera (519) is mounted at the rear end of the mounting bracket (513).

7. A power distribution cabinet with real-time status monitoring function according to claim 6, characterized in that: The mounting bracket (513) is rotatably connected to a second sleeve rod (516), and the second sleeve rod (516) is rotatably connected to a second rotating shaft (515). The lower ends of the second rotating shaft (515) and the second sleeve rod (516) are fixedly connected to mutually symmetrical toothed circular plates (517). The upper ends of the second rotating shaft (515) and the second sleeve rod (516) are fixedly connected to sweeping bars (518). The mounting bracket (513) is rotatably connected to two second gears (5110). The outer side of the second gear (5110) is meshed with the toothed circular plate (517). The front end of one of the two second gears (5110) is fixedly connected to the output shaft of the second motor (514).

8. A power distribution cabinet with real-time status monitoring function according to claim 6, characterized in that: An electric actuator (5111) is installed at the front end of the mounting bracket (513). The output shaft of the electric actuator (5111) passes through the mounting hole of the mounting guide rail (511). The output shaft of the mounting guide rail (511) is magnetic. A round shaft electric pen (5113) is slidably connected to the inner side of the mounting bracket (513). A magnet (5112) is fixedly connected to the rear end of the round shaft electric pen (5113). A baffle (5114) is fixedly connected to the outer side of the round shaft electric pen (5113). A voltage sensor is provided at the rear end of the round shaft electric pen (5113).

9. A power distribution cabinet with real-time status monitoring function according to claim 5, characterized in that: The bus detection assembly (52) includes a clamp-on ammeter (521) fixedly connected to the mounting bracket (513). The inner side of the housing of the clamp-on ammeter (521) is provided with a sliding groove. The sliding groove of the clamp-on ammeter (521) is rotatably connected to a plurality of third gears (522) through a rotating shaft. A plurality of third motors (523) are installed at the lower end of the housing of the clamp-on ammeter (521). The output shaft of the third motor (523) is fixedly connected to the third gear (522) at the corresponding position.

10. A power distribution cabinet with real-time status monitoring function according to claim 9, characterized in that: The clamp-on ammeter (521) has an arc-shaped rack (525) slidably connected to the inner side of its groove. The upper and lower ends of the arc-shaped rack (525) are fixedly connected to limit sliders (524). The limit sliders (524) are slidably connected to the inner side of the clamp-on ammeter (521). The outer side of the arc-shaped rack (525) is meshed with a third gear (522). The inner side of the arc-shaped rack (525) has an assembly groove. The inner side of the arc-shaped rack (525) is provided with a secondary winding of a current transformer. The inner side of the arc-shaped rack (525) is equipped with a current transformer core. The inner wall of the arc-shaped rack (525) is equipped with a second industrial camera (526).

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