Intelligent electrical distribution cabinet

Abstract

The present invention relates to the technical field of power distribution cabinets, and specifically to an intelligent electrical power distribution cabinet, which includes a cabinet body and a cabinet door, a temperature monitoring system is arranged on the cabinet door, and the temperature monitoring system includes a temperature sensing probe track, a controller and a temperature sensing probe; a warning self-locking mechanism is arranged on the cabinet door, and the warning self-locking mechanism includes a pushing mechanism, a warning plate, a locking pin at the bottom of the warning plate and a window on the cabinet door, and the warning plate can slide up and down through a slide groove and is arranged on the back of the cabinet door, and when the warning plate slides to the bottom of the slide groove, the locking pin is inserted into the inner side of the bottom baffle of the cabinet body; the temperature monitoring system also includes an alarm indicator light; the alarm indicator light is arranged on the cabinet door, and when the temperature sensing probe detects that a certain target temperature exceeds a set value, the alarm indicator light is on, and the controller controls the pushing mechanism to move and push the warning plate to the bottom of the slide groove. The present invention can realize the self-locking of the cabinet door warning through temperature detection, and avoid safety accidents caused by users opening the cabinet by themselves.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, in particular to an intelligent electric power distribution cabinet. Background Art

[0002] As a common terminal equipment of the power supply system, the common faults of the power distribution cabinet include poor contact of the wiring points (loose wiring, oxidation of the wiring points, etc.), overload (overload operation) and leakage (insulation aging, damage, etc.). Poor contact or overload failures will cause components to overheat, which will lead to burning or even flash explosion, and in serious cases, cause personnel safety accidents. Therefore, it is necessary to effectively monitor and regularly inspect the power distribution cabinet. For example, the Chinese invention patent with the authorization announcement number CN110954219B discloses a power distribution cabinet abnormality detection device, which is provided with a curved track and a temperature detection mechanism so that the temperature detection mechanism can move on the curved track, thereby detecting the temperature of electronic components in various places inside the power distribution cabinet.

[0003] Although the above scheme realizes temperature detection and can notify maintenance personnel, the distribution cabinet still has the following problems when a fault occurs or is under maintenance: 1. When a fault occurs, the power maintenance personnel have not arrived at the maintenance point yet, and nearby users will open the distribution cabinet on their own to operate, which is prone to safety accidents; 2. High temperature at the connection point may cause flash explosion. If the flash explosion occurs after the cabinet door is opened, it is easy to cause a safety accident; 3. During maintenance, the maintenance personnel need to hang a warning sign after disconnecting the main circuit breaker to prevent others from accidentally closing the switch. If the maintenance personnel forget to hang the warning sign or others ignore the warning sign and close the switch, a safety accident will occur; 4. When a grounding wire in the distribution cabinet falls off, it may cause leakage. If the operator touches the cabinet door at this time, although in most cases the voltage is not enough to hurt people, the sudden electric shock will scare the operator.

[0004] Therefore, it is necessary to design an intelligent distribution cabinet to solve the above problems and improve the safety of the distribution cabinet. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides an intelligent electrical distribution cabinet that can realize cabinet door warning and self-locking through temperature detection, thereby preventing users from opening the cabinet on their own and causing safety accidents.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] An intelligent electrical distribution cabinet comprises a cabinet body and a cabinet door, wherein a temperature monitoring system is arranged on the cabinet door, wherein the temperature monitoring system comprises a temperature sensing probe track, a controller and a temperature sensing probe, wherein the temperature sensing probe is arranged on the temperature sensing probe track through a probe seat, wherein the controller controls the probe seat to move on the temperature sensing probe track according to a set time, and then detects a target; wherein a warning self-locking mechanism is arranged on the cabinet door, wherein the warning self-locking mechanism comprises a pushing mechanism, a warning plate, a locking pin at the bottom of the warning plate and a window on the cabinet door, wherein the warning plate can be slid up and down on the back side of the cabinet door through a slide groove, wherein when the warning plate slides to the bottom of the slide groove, the locking pin is inserted into the inner side of the bottom baffle of the cabinet body, and the warning word of the warning plate is located in the window;

[0008] The temperature monitoring system also includes an alarm indicator light; the alarm indicator light is arranged on the cabinet door, and when the temperature sensing probe detects that a certain target temperature exceeds a set value, the alarm indicator light lights up, and the controller controls the pushing mechanism to move and push the warning plate to the bottom of the slide slot.

[0009] Furthermore, a row of switch components is arranged in a straight line above the cabinet, a main circuit breaker is arranged above the row of switch components, and the temperature sensing probe track is arranged horizontally with the row of switch components; the probe seat is provided with two temperature sensing probes, and the upper temperature sensing probe is arranged on the probe seat through an angle adjustment mechanism, and when the probe seat is moved to the bottom of the main circuit breaker, the controller controls the angle adjustment mechanism to align the temperature sensing probe with the main circuit breaker.

[0010] Furthermore, a fine-tuning frame is provided between the temperature sensing probe and the probe seat, and the rear end of the temperature sensing probe is fixed to the strip opening of the fine-tuning frame by means of bolts.

[0011] Furthermore, an anti-closing lock rod is arranged at a position on the inner wall of the cabinet corresponding to the main circuit breaker, and the anti-closing lock rod includes a folding rod and a rotating base. The folding rod is pivotally connected to the rotating base, and a torsion spring is arranged between the folding rod and the rotating base to keep the folding rod in a vertical state.

[0012] Furthermore, the pushing mechanism includes a screw system, the screw system is located behind the warning plate, and a pressure plate abutting against the warning plate and used to press down the warning plate is provided on the nut of the screw system.

[0013] Furthermore, the pressure plate is connected to a pressure sensor, and when the detection value of the pressure sensor is greater than a set value, the screw system stops working.

[0014] Furthermore, a leakage detector is arranged on the cabinet body, and an audible and visual alarm is arranged on the cabinet door; the leakage detector includes a telescopic probe, a resistor, a light-emitting tube, a spring and a conductive base which are sequentially encapsulated in an outer shell and contact each other, and a light detector arranged on the rear side of the outer shell, and a terminal for connecting to a ground wire is arranged at the tail of the conductive base; when the cabinet door is closed, the cabinet door squeezes the telescopic probe, and the light-emitting tube moves to a position corresponding to the light detector; after the light detector detects the light signal of the light-emitting tube, the controller controls the audible and visual alarm to alarm.

[0015] Furthermore, a cable rod is arranged on the cabinet door in parallel with the temperature sensing probe track, and the spiral cable of the temperature sensing probe is sleeved on the cable rod.

[0016] Furthermore, the controller is provided with a display module, and the display module is used to display over-temperature information, and the over-temperature information includes a target number, over-temperature time and temperature.

[0017] The beneficial effects of the present invention are:

[0018] It realizes the locking of the cabinet door when the components in the cabinet are at high temperature or fail through temperature detection combined with a warning self-locking mechanism, effectively preventing non-professionals such as users from opening the cabinet and avoiding the occurrence of safety accidents; while the warning self-locking mechanism realizes the mechanical locking of the cabinet door, the warning sign falls into the window of the cabinet door to serve as a warning. By abutting the pressure plate with the warning plate, the sign of the warning plate can be manually pushed into the window during maintenance, and the cabinet door can be locked. The operator can only unlock the cabinet door after seeing the warning sign and pulling it upward, avoiding the maintenance personnel forgetting to bring the warning sign or other personnel ignoring the warning sign. The temperature sensing probe is arranged on the probe seat through an angle adjustment mechanism, which can take into account the main circuit breaker and other components above. The present invention is also provided with an anti-closing lock rod to build a second safety line to prevent accidental closing. The leakage detector can monitor in real time and issue an alarm to warn the operator to take good protection and timely maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a front view schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the probe base and the temperature sensing probe of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the warning plate of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the pressing plate on the nut of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the leakage detector of the present invention;

[0025] Figure 7 It is a schematic diagram of the initial state of the anti-closing lock rod of the present invention;

[0026] In the figure, 1, cabinet body; 101, notch; 2, cabinet door; 201, window; 202, transverse reinforcement plate; 301, temperature sensor track; 302, controller; 3021, display module; 303, temperature sensor; 304, sensor seat; 305, alarm indicator; 306, fine-tuning frame; 307, angle adjustment mechanism; 308, cable rod; 401, pushing mechanism; 4011, nut; 402, warning plate; 403 , lock pin; 404, slide groove; 405, pressure plate; 406, push-pull handle; 407, horizontal plate; 5, switch component row; 6, main circuit breaker; 7, anti-closing lock rod; 701, folding rod; 702, rotating base; 8, leakage detector; 801, housing; 802, telescopic probe; 803, resistor; 804, light-emitting tube; 805, spring; 806, conductive base; 807, light detector; 808, sound and light alarm. DETAILED DESCRIPTION

[0027] In order to better understand the present invention, the following Figure 1-7 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] First embodiment:

[0029] The intelligent electrical distribution cabinet of this embodiment includes a cabinet body 1 and a cabinet door 2, and a temperature monitoring system and a warning self-locking mechanism are arranged on the cabinet door 2. The temperature monitoring system includes a temperature sensing probe track 301, a controller 302, a temperature sensing probe 303 and an alarm indicator light 305. The temperature sensing probe 303 is arranged on a probe seat 304, and the probe seat 304 is slidably arranged on the temperature sensing probe track 301. In this embodiment, the temperature sensing probe track 301 preferably adopts a motor-driven lead screw, and the probe seat 304 is fixedly connected to the lead screw nut. A shell is arranged on the outside of the lead screw, and the probe seat 304 is located on the outer surface of the shell.

[0030] The controller 302 controls the probe seat 304 to move on the temperature probe track 301 according to the set time (such as every 30 minutes), and then detects the target. In order to facilitate maintenance personnel to check the fault situation, the controller 302 is provided with a display module 3021, and the display module 3021 is used to display over-temperature information, which includes the target number (the target is the switch component to be detected), over-temperature time and temperature. The display screen of the display module 3021 is located on the cabinet door 2. Similarly, the alarm indicator light 305 is also set on the cabinet door 2. The controller is also connected to the host computer for communication.

[0031] The warning self-locking mechanism includes a pushing mechanism 401, a warning plate 402, a locking pin 403 fixedly connected to the bottom of the warning plate 402, and a window 201 on the cabinet door 2. Figure 4 As shown, a push-pull handle 406 is provided in the middle of the warning plate 402, and a warning word is provided above the push-pull handle 406. A slide groove 404 is provided on the back of the cabinet door 2. Preferably, the slide groove 404 includes slide bars on both sides and a blocking bar at the bottom. The warning plate 402 is slidable up and down through the slide groove 404 and is provided on the back of the cabinet door 2. When the warning plate 402 slides to the bottom of the slide groove 404, the locking pin 403 is inserted into the inner side of the bottom baffle of the cabinet body 1, and the warning word of the warning plate 402 is located in the window 201. A notch 101 for inserting the locking pin 403 is provided on the inner side of the bottom baffle of the cabinet body 1. The pushing mechanism 401 includes a screw system, which is located behind the warning plate 402. A transverse reinforcing plate 202 is provided on the back of the window 201, as shown in FIG. Figure 1 As shown, two transverse reinforcing plates are provided, and the front end of the screw system is fixed on the upper transverse reinforcing plate 202. Figure 5 As shown, a pressing plate 405 for pressing down the warning plate 402 is provided on the nut 4011 of the screw system and is in contact with (only in contact but not connected to) the warning plate 402, and a horizontal plate 407 corresponding to the pressing plate 405 is provided on the top of the warning plate 402. When the cabinet door 2 is damaged by external impact or the like, the sliding groove 404 may be deformed at this time, causing the warning plate 402 to be unable to slide smoothly. Therefore, the pressing plate 405 is connected to a pressure sensor, and when the detection value of the pressure sensor is greater than the set value, the screw system stops working.

[0032] When the temperature probe 303 detects that a certain target temperature exceeds a set value, the alarm indicator 305 lights up, and the controller controls the pushing mechanism 401 to move, pushing the warning plate 402 to the bottom of the slide slot 404, and the cabinet door 2 is locked. If the cabinet door needs to be opened, the host computer needs to send a command to control the pushing mechanism 401 to return, and then manually pull the push-pull handle 406 to unlock the cabinet door.

[0033] A row of switch components 5 (the switch components are mainly small circuit breakers) is arranged in a straight line at the top of the cabinet 1. A main circuit breaker 6 is arranged above the row of switch components 5. The temperature sensing probe track 301 is arranged horizontally with the row of switch components 5. Two temperature sensing probes 303 are arranged above and below the probe seat 304. The lower temperature sensing probe 303 is used to collect the temperature of the wiring points below the switch components. The upper temperature sensing probe 303 is arranged on the probe seat 304 through an angle adjustment mechanism 307, and can collect the temperature of the wiring points above the switch components and the temperature of the wiring points below the main circuit breaker. The angle adjustment mechanism 307 includes a driving motor, a rotating shaft connected to the output end of the driving motor, and a flap arranged on the rotating shaft. The upper temperature sensing probe 303 is arranged on the flap (such as Figure 3 As shown in FIG. 1 , in the case of adding a fine-tuning frame 306, the fine-tuning frame 306 is fixed on the flap). For the temperature of the connection point above the main circuit breaker, a fixed temperature sensing probe can be separately set to collect the temperature. The present invention further designs a fine-tuning mechanism for the temperature sensing probe 303, and the fine-tuning mechanism is as follows: Figure 3 As shown, it includes a fine-tuning frame 306, and the rear end of the temperature probe 303 is fixed to the strip opening of the fine-tuning frame 306 by bolts. When in use, the position of the temperature probe 303 can be adjusted within the range of the strip opening as needed. When the probe seat 304 moves to the bottom of the main circuit breaker 6, the controller controls the angle adjustment mechanism to align the temperature probe with the main circuit breaker. In order to avoid cable interference of the temperature probe, the cable adopts a spiral spring cable, and a cable rod 308 is arranged on the cabinet door in parallel with the temperature probe track 301, and the spiral cable of the temperature probe is sleeved on the cable rod 308.

[0034] This embodiment adds a second safety line of defense against mistaken closing on the basis of the first embodiment, that is, an anti-closing lock rod 7 is provided at a position corresponding to the main circuit breaker 6 on the inner wall of the cabinet 1, and the anti-closing lock rod 7 includes a folding rod 701 and a rotating base 702. The rotating base 702 includes a fixed end fixed to the cabinet 1 and a rotating end rotatably connected to the fixed end through a rotating shaft. The folding rod 701 is pivotally connected to the rotating base 702, and a torsion spring is provided between the folding rod 701 and the rotating end of the rotating base 702 to keep the folding rod 701 in a vertical state.

[0035] During maintenance, after the maintenance personnel pull down the main circuit breaker switch, the main circuit breaker switch is blocked by the anti-closing lock rod 7 to prevent others from closing the switch. After closing the cabinet door, the warning plate 402 is pulled to the bottom of the slide slot, and the lock pin 403 locks the cabinet door. When the cabinet door needs to be opened, the warning plate 402 needs to be operated first, so the warning message will not be neglected, and after opening the cabinet door, there is a second line of defense of the anti-closing lock rod 7.

[0036] This embodiment adds a leakage detector 8 on the basis of the first or second embodiment. The leakage detector 8 is arranged on the cabinet body 1, and the sound and light alarm 808 is arranged on the cabinet door 2. Figure 6 As shown, the leakage detector 8 includes a telescopic probe 802, a resistor 803, a light-emitting tube 804, a spring 805 and a conductive base 806 which are sequentially encapsulated in a housing 801 and contact each other, and a light detector 807 arranged on one side of the rear of the housing 801. The tail of the conductive base 806 is provided with a terminal for connecting to the ground wire. When the cabinet door 2 is closed, the cabinet door 2 squeezes the telescopic probe 802, and the light-emitting tube 804 moves to a position corresponding to the light detector 807. When the ground wire between the cabinet door and the cabinet body falls off or other leakage conditions cause the cabinet door to be energized, the current of the cabinet door passes through the leakage detector 8 and is grounded. At this time, the light-emitting tube 804 is lit. After the light detector 807 detects the light signal of the light-emitting tube 804, the controller controls the sound and light alarm 808 to alarm, reminding the door opener to pay attention to protection.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An intelligent electrical distribution cabinet, comprising a cabinet body and a cabinet door, wherein a temperature monitoring system is arranged on the cabinet door, wherein the temperature monitoring system comprises a temperature sensing probe track, a controller and a temperature sensing probe, wherein the temperature sensing probe is arranged on the temperature sensing probe track through a probe seat, and the controller controls the probe seat to move on the temperature sensing probe track according to a set time, thereby detecting a target; characterized in that: A warning self-locking mechanism is arranged on the cabinet door, and the warning self-locking mechanism comprises a pushing mechanism, a warning plate, a locking pin at the bottom of the warning plate and a window on the cabinet door. The warning plate is arranged on the back of the cabinet door so as to slide up and down through a slide groove. When the warning plate slides to the bottom of the slide groove, the locking pin is inserted into the inner side of the bottom baffle of the cabinet body, and the warning word on the warning plate is located in the window; The temperature monitoring system also includes an alarm indicator light; the alarm indicator light is arranged on the cabinet door, and when the temperature sensing probe detects that the target temperature exceeds the set value, the alarm indicator light is on, and the controller controls the pushing mechanism to move and push the warning plate to the bottom of the slide slot; A row of switch components is arranged in a straight line above the cabinet, a main circuit breaker is arranged above the row of switch components, and the temperature sensing probe track is arranged horizontally with the row of switch components; the probe seat is provided with two temperature sensing probes, and the upper temperature sensing probe is arranged on the probe seat through an angle adjustment mechanism, and when the probe seat moves to the bottom of the main circuit breaker, the controller controls the angle adjustment mechanism to align the temperature sensing probe with the main circuit breaker; A fine-tuning frame is provided between the temperature sensing probe and the probe seat, and the rear end of the temperature sensing probe is fixed to the strip opening of the fine-tuning frame by bolts; The pushing mechanism comprises a screw system, the screw system is located behind the warning plate, and a pressing plate abutting against the warning plate and used for pressing down the warning plate is arranged on the nut of the screw system; The pressure plate is connected to a pressure sensor, and when the detection value of the pressure sensor is greater than a set value, the screw system stops working.

2. The intelligent electrical distribution cabinet according to claim 1, characterized in that: An anti-closing lock rod is arranged at a position on the inner wall of the cabinet corresponding to the main circuit breaker. The anti-closing lock rod includes a folding rod and a rotating base. The folding rod is pivotally connected to the rotating base, and a torsion spring is arranged between the folding rod and the rotating base to keep the folding rod in a vertical state.

3. The intelligent electrical distribution cabinet according to claim 1, characterized in that: A leakage detector is arranged on the cabinet body, and an audible and visual alarm is arranged on the cabinet door; the leakage detector comprises a telescopic probe, a resistor, a light-emitting tube, a spring and a conductive base which are sequentially encapsulated in a shell and contact each other, and a light detector arranged on one side of the rear of the shell, and a terminal for connecting to a ground wire is arranged at the tail of the conductive base; when the cabinet door is closed, the cabinet door squeezes the telescopic probe, and the light-emitting tube moves to a position corresponding to the light detector; after the light detector detects the light signal of the light-emitting tube, the controller controls the audible and visual alarm to alarm.

4. The intelligent electrical distribution cabinet according to claim 1, characterized in that: A cable rod is arranged on the cabinet door in parallel with the temperature sensing probe track, and a spiral cable of the temperature sensing probe is sleeved on the cable rod.

5. The intelligent electrical distribution cabinet according to claim 1, characterized in that: The controller is provided with a display module, and the display module is used to display over-temperature information, and the over-temperature information includes a target number, over-temperature time and temperature.

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