Intelligent micro-grid power cabinet and use method thereof

Abstract

The invention relates to the field of electric power cabinets, and discloses an intelligent micro-grid electric power cabinet and a use method thereof.The electric power cabinet comprises a cabinet body, a base and a controller, and the bottom of the cabinet body is detachably and fixedly arranged on the base; a cabinet door is hinged to the cabinet body, and the cabinet door and the cabinet body are locked through a coded lock; a passive protection mechanism is arranged on the side, away from the coded lock, of the cabinet door and used for conducting secondary reinforcement on the cabinet door. The cabinet body is also provided with an active protection mechanism, and the active protection mechanism carries out sensing through a trigger unit arranged on the cabinet door. When the cabinet door is forced to open, the active protection mechanism is driven to perform active protection. Through cooperation of the active protection mechanism and the passive protection mechanism, whether illegal entry exists or not is judged through dual verification of whether the coded lock is in a normal entry state or not and whether the passive protection mechanism is in a working state or not, so that an active protection assembly is selectively triggered for driving; therefore, the dual guarantee of passive safety reinforcement and active driving is considered.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power cabinets, in particular to an intelligent micro-grid power cabinet and a use method thereof. BACKGROUND

[0002] The micro-grid power distribution cabinet is a key electrical equipment in the micro-grid for realizing power collection, distribution, protection and monitoring. It internally integrates circuit breakers, disconnectors, protection devices and measurement and control units, is responsible for connecting photovoltaic arrays, energy storage batteries, fans and other distributed power sources, and reliably distributes power to various loads. Its installation location mainly depends on the topological structure of the micro-grid and the site conditions, and is commonly used in two types of environments: one is a controlled indoor environment, such as a power distribution room or equipment room; the other is directly deployed outdoors, such as in remote photovoltaic power stations, energy storage containers, coastal islands or border base stations, and other unattended or difficult to monitor sites. The characteristics of such outdoor and decentralized deployment pose a hidden danger to physical security.

[0003] In the actual operation of the micro-grid, especially in outdoor projects, power distribution cabinets are often subjected to physical theft or malicious damage. The main forms include: theft of high-value copper busbars, cable joints and other raw materials in the cabinet; theft or damage of intelligent meters, protection relays and other core functional modules; and violent prying of the cabinet door, resulting in the entire equipment being damaged. Such incidents directly result in the loss of equipment assets and often cause the partial or even complete paralysis of the micro-grid, interruption of power supply to critical loads, and significant direct economic losses and operational disruption losses. Since on-site repair involves component replacement and system debugging, the recovery period is long, further amplifying the negative impact of the accident.

[0004] The current micro-grid power distribution cabinet has some defects in actual application; for example: on the one hand, existing micro-grid power distribution cabinets generally focus on environmental protection such as electrical safety and dust and water prevention, and the cabinet body can only meet the needs of regular operation and cannot effectively prevent theft. On the other hand, the power distribution cabinet is passive and lacks intrusion awareness and active alarm, and cannot send real-time alerts when the cabinet door is abnormally opened or hit. SUMMARY

[0005] The present application relates to the field of power cabinets, in particular to an intelligent micro-grid power cabinet and a use method thereof.

[0006] The present application relates to the field of power cabinets, in particular to an intelligent micro-grid power cabinet and a use method thereof. An intelligent micro-grid power cabinet, comprising a cabinet body, a base and a controller, the bottom of the cabinet body being detachably and fixedly arranged on the base; a cabinet door is hingedly connected to the cabinet body, and the cabinet door is locked with the cabinet body through a password lock; The side of the cabinet door away from the password lock is provided with a passive protection mechanism for reinforcing the cabinet door twice; the cabinet body is further provided with an active protection mechanism which is sensed by a trigger unit arranged on the cabinet door; when the cabinet door is forced to open, the active protection mechanism is driven to actively protect.

[0007] Further, the passive protection mechanism includes a connecting rod and a plurality of telescopic rods, one end of each telescopic rod is fixedly arranged on the cabinet door, and a through slot is formed at a position corresponding to the telescopic end of the telescopic rod on the cabinet body, a rubber ring is arranged on the telescopic end of the telescopic rod, the telescopic ends of the plurality of telescopic rods are fixedly connected to a truss, the middle part of the truss is fixedly connected to one end of the connecting rod, the other end of the connecting rod is fixedly arranged on the lock tongue of the password lock, and the telescopic ends of the telescopic rods are outwardly extended from the through slot; the power of the lock tongue is transmitted through the connecting rod to realize synchronous action of the passive protection mechanism and the password lock.

[0008] Further, the active protection mechanism includes: a sensing unit which judges whether it is a rule-breaking entry through double verification of the state of the passive protection mechanism and the password lock; an active protection component which triggers the audible and light alarm and the active spraying component to drive away the rule-breaking personnel when it is judged as a rule-breaking entry.

[0009] Further, the sensing unit includes an infrared laser emitter and an infrared laser receiver, the infrared laser emitter is arranged on the cabinet body above the through slot at the topmost part, the infrared emitter is arranged on the cabinet body below the through slot at the bottommost part, and the infrared laser emitter and the infrared laser receiver are arranged opposite to each other; When the laser emitted by the infrared laser emitter is received by the infrared laser receiver, the passive protection component is in a non-working state; otherwise, the passive protection component is in a working state.

[0010] Further, the cabinet door is further provided with a hidden component, the hidden component includes a movable cover body and a trigger mechanism; when the cabinet door is in a closed state, the trigger mechanism drives the cover body to shield the operation panel of the password lock; when the cabinet door is opened, the trigger mechanism drives the cover body to move away, so that the operation panel of the password lock is exposed for operation.

[0011] Further, the trigger mechanism includes a trigger slot and a flip plate, the trigger slot is formed at the bottom region of the cabinet door, and the flip plate is rotatably connected in the trigger slot through a torsional spring; one end of the flip plate is connected to a pull cable, the pull cable is fixedly connected to a sliding block after passing through a guide wheel arranged on the back of the cabinet door, the sliding block is slidingly installed in a sliding groove arranged on the back of the cabinet door, a through slot is formed in the sliding groove, a connecting rod is arranged in the through slot, and the two ends of the connecting rod are fixedly connected to the sliding block and the cover body, respectively; the cover body is hollowly arranged, and a slot for the password lock to pass through is formed at the lower edge of the cover body. When the flip panel changes from being flush with the front of the cabinet door to a tilted position, pull the slider upward to reset it, thereby causing the connected cover to detach from the combination lock, exposing the combination lock.

[0012] Furthermore, the active protection component includes a gear, which is coaxially fixed to a hinge shaft fixed to the cabinet door. A meshing gear ring is provided on one side of the gear, and the gear ring is rotatably mounted on the inner side wall of the cabinet. An eccentric wheel is fixed at the center of the top of the gear ring, and an insertion hole is provided at the top of the eccentric wheel. An insertion rod is fitted into the insertion hole, and the end of the insertion rod is fixedly connected to a cable through a connector. A limiting sleeve is also fitted over the insertion rod, and the limiting sleeve is fixedly mounted on the back of the cabinet door.

[0013] Furthermore, the active protection components also include audible and visual alarms and active spraying components; The audible and visual alarm is installed at the top of the cabinet. The active spraying unit is located on the top of the cabinet, and a water collection tank is installed on the upper surface of the cabinet. The top of the water collection tank is open and covered by a dustproof net. A pressure pump is installed inside the water collection tank, and the pressure pump supplies water from the water collection tank to the spray nozzles through pipes. Multiple spray nozzles are installed and evenly arranged on the cabinet above the cabinet door. A touch switch module is installed on the cabinet at the location corresponding to the movement trajectory of the eccentric wheel. The touch switch module, the audible and visual alarm, and the pressure pump are electrically connected. The touch switch module is installed on a vertical slide rail on the cabinet. A first magnet is installed on the top of the touch switch. The first magnet and a second magnet sleeved on the top of the plug are magnetically attracted to each other. When the eccentric wheel presses the touch switch module, the pressure pump and the audible and visual alarm start to work.

[0014] A method for using an intelligent microgrid power distribution cabinet includes the following steps: S1. Normal opening: First, operate the cover of the hidden component to remove it, exposing the control panel of the combination lock; then operate the combination lock to enter the correct password, and the lock tongue will retract; the retraction of the lock tongue will synchronously drive the telescopic end of the passive protection mechanism to exit from the cabinet through groove through the linkage, thus removing the secondary reinforcement of the cabinet door; at this time, since the telescopic end has been withdrawn, the infrared laser path of the sensing unit is restored, the controller determines that it is a legal operation, and the cabinet door can be safely opened without triggering the active protection. S2. Unauthorized Entry: When the cabinet door is opened, if the controller does not receive the correct unlocking signal from the combination lock, but at the same time detects that the infrared laser is blocked through the sensing unit, indicating that the passive protection mechanism is still in the working locked state, it is determined to be unauthorized entry, and the controller triggers the active protection component.

[0015] The beneficial effects of this invention are: This invention utilizes a passive protection mechanism that automatically extends a locking bar when the cabinet door is locked, providing multi-point reinforcement. A sensing unit monitors the locking bar's status and compares it with the combination lock signal to accurately determine unauthorized intrusion, triggering an audible and visual alarm and a spray system to deter unauthorized personnel. Furthermore, a hidden component on the cabinet door conceals the combination lock, increasing the difficulty of direct damage. Finally, when the cabinet door is forcibly turned and the hidden component remains locked, protection is directly activated via a gear and eccentric wheel mechanism, independent of electrical components. The controller and mechanical trigger are independent, creating redundancy and ensuring continued protection even in the event of electrical component failure, thus improving overall reliability. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 for Figure 1 A partial side view; Figure 3 This is a schematic diagram of the structure on the back of the cabinet; Figure 4 This is a schematic diagram of the gear and gear ring meshing in this invention; Figure 5 This is a schematic diagram of the structure of the first magnet and the second magnet in this invention.

[0018] Figure Descriptions: 1. Cabinet; 2. Base; 3. Cabinet Door; 5. Passive Protection Mechanism; 51. Connecting Rod; 52. Telescopic Rod; 53. Through Slot; 54. Truss; 55. Locking Tongue; 6. Active Protection Mechanism; 61. Infrared Laser Emitter; 62. Infrared Laser Receiver; 63. Gear; 64. Gear Ring; 65. Eccentric Wheel; 66. Insert Hole; 67. Insert Rod; 68. Connector; 69. Limiting Sleeve; 7. Concealed Component; 71. Cover; 72. Trigger Slot; 73. Flip Plate; 74. Cable; 75. Guide Wheel; 76. Slider; 77. Slide Rail; 78. Through Slot; 79. Connecting Rod; 8. Audible and Visual Alarm; 9. Active Spray Assembly; 91. Water Collection Tank; 92. Pressure Pump; 93. Nozzle; 94. Touch Switch Module; 95. Vertical Slide Rail; 96. First Magnet; 97. Second Magnet. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention is an intelligent microgrid power cabinet; Example 1: Please see Figures 1-2 As shown, it includes a cabinet 1, a base 2 and a controller. The bottom of the cabinet 1 is detachably and fixedly mounted on the base 2. A cabinet door 3 is hinged to the cabinet 1 and is locked to the cabinet 1 by a combination lock. A passive protection mechanism 5 is provided on the side of the cabinet door 3 away from the combination lock. The passive protection mechanism 5 is used to reinforce the cabinet door 3. An active protection mechanism 6 is also provided on the cabinet body 1. The active protection mechanism 6 is sensed by a trigger unit set on the cabinet door 3. When the cabinet door 3 is forced to open, the active protection mechanism 6 is driven to perform active protection.

[0021] The passive protection mechanism 5 includes a connecting rod 51 and multiple telescopic rods 52. One end of each telescopic rod 52 is fixedly mounted on the cabinet door 3, and a through groove 53 is provided on the cabinet body 1 at the position corresponding to the telescopic end of the telescopic rod 52. A rubber ring is fitted on the telescopic end of the telescopic rod 52. The telescopic ends of multiple telescopic rods 52 are fixedly mounted on a truss 54. The middle part of the truss 54 is fixedly connected to one end of the connecting rod 51, and the other end of the connecting rod 51 is fixedly mounted on the latch 55 of the combination lock. The telescopic ends of the telescopic rods 52 all extend outward from the through groove 53. The power of the latch 55 is transmitted through the connecting rod 51, so that the passive protection mechanism 5 and the combination lock can move synchronously.

[0022] Active protection mechanism 6 includes: The sensing unit determines whether there is unauthorized entry by verifying both the passive protection mechanism 5 and the status of the combination lock. The active protection component, upon determining unauthorized entry, triggers the audible and visual alarm 8 and the active spray component 9 to drive away the unauthorized personnel.

[0023] The sensing unit includes an infrared laser emitter 61 and an infrared laser receiver 62. The infrared laser emitter 61 is located on the cabinet 1 above the top through slot 53, and the infrared laser receiver 62 is located on the cabinet 1 below the bottom through slot 53. The infrared laser emitter 61 and the infrared laser receiver 62 are positioned facing each other. When the laser emitted by the infrared laser emitter 61 is received by the infrared laser receiver 62, the passive protection component is in a non-operating state; otherwise, the passive protection component is in an operating state.

[0024] In this technical solution, to improve the security of the microgrid power cabinet, an active protection structure and a passive protection mechanism 5 are set up. The passive protection mechanism 5 is used to reinforce the cabinet door 3 after it is closed normally, thereby improving the security performance of the cabinet door 3. Specifically, when the cabinet door 3 is closed, the lock tongue 55 of the combination lock is locked. The truss 54 is moved synchronously through the connecting rod 51, and the telescopic ends of multiple telescopic rods 52 move accordingly, inserting into the corresponding through slots 53 and extending out of the through slots 53. At this time, the laser channel of the normal sensing unit is blocked by the telescopic rods 52 in the working state. Similarly, when the combination lock is opened, the passive protection unit also retracts. At this time, the laser channel of the sensing unit is unobstructed, and the passive protection mechanism 5 is in a non-working state. The combination lock can be made of existing technology and will not be described again. The cabinet body 1 and the cabinet door 3 are made of high structural strength materials to improve the performance against physical damage. The specific material type is determined according to the technical personnel and the actual environmental requirements, which is existing technology and therefore does not need to be described in detail.

[0025] It should be noted that the controller is connected to the electrical components in this invention via wired or wireless communication. The controller determines whether the power cabinet has been illegally entered based on the dual verification of the combination lock's opening signal and whether the laser channel of the sensing unit is blocked. If the unauthorized entrant does not know the password, they can only physically damage the cabinet. Once physical damage occurs, the combination lock and passive protection mechanism 5 will still be in working condition, or the lock body will be damaged. However, since the combination lock has not retracted properly, the telescopic end of the passive protection mechanism 5 may still be in the through slot 53. Therefore, if either the combination lock's opening signal or the passive protection mechanism 5 has not retracted is satisfied, it is also determined to be an unauthorized entry, thereby controlling the active protection mechanism 6 to work, that is, to drive away the unauthorized entrant through audible and visual alarms and active water spray. It is particularly important to emphasize that the water spray will not harm the human body, but only serves as a reminder or deterrent.

[0026] This solution employs two main mechanisms. First, the passive protection mechanism 5, which uses a synchronized mechanical linkage between the telescopic rod 52 and the locking tongue 55, provides a secondary physical reinforcement of the cabinet door 3 the moment it is closed and locked. This significantly increases the difficulty of forcibly breaking into the door or prying open the door gaps, forming the first line of substantial protection. Second, the real-time monitoring of the protective mechanism's operational status by an infrared sensing unit, combined with dual logic verification at the controller level using the electronic unlocking signal from the combination lock, ensures accurate and reliable judgment of unauthorized entry, avoiding false alarms from a single sensor. Simultaneously, the active protection components, triggered by this judgment and including audible and visual alarms and water spray, elevate the protection from passive resistance to active deterrence and expulsion. The audible and visual alarms attract attention, while the spraying of harmless water effectively interferes with and prevents intrusion, avoiding the use of potentially legally risky instruments like pepper spray—making it both safe and effective.

[0027] Example 2: Please see Figure 1 , Figure 3 As shown, a hidden component 7 is also provided on the cabinet door 3. The hidden component 7 includes a movable cover 71 and a trigger mechanism. When the cabinet door 3 is closed, the trigger mechanism drives the cover 71 to cover the operation panel of the combination lock. When the cabinet door 3 is opened, the trigger mechanism drives the cover 71 to move away, exposing the operation panel of the combination lock for operation.

[0028] The triggering mechanism includes a trigger slot 72 and a flip plate 73. The trigger slot 72 is located at the bottom of the cabinet door 3. The flip plate 73 is rotatably connected to the trigger slot 72 via a torsion spring. One end of the flip plate 73 is connected to a pull cable 74. The pull cable 74 passes around a guide wheel 75 on the back of the cabinet door 3 and is fixedly connected to a slider 76. The slider 76 is slidably installed in a slide rail 77 on the back of the cabinet door 3. A through groove 78 is provided inside the slide rail 77. A connecting rod 79 is provided in the through groove 78. The two ends of the connecting rod 79 are fixedly connected to the slider 76 and the cover 71, respectively. The cover 71 is hollow, and a slot for the combination lock to enter and exit is provided on the lower edge of the cover 71. A limiter is provided in the trigger slot 72 to limit the top of the flip plate 73 to only deflect downwards by 90 degrees, and then reset under the action of the torsion spring. When the flip plate 73 changes from being flush with the front of the cabinet door 3 to being tilted, the slider 76 is pulled upward to reset, thereby causing the connected cover 71 to disengage from the combination lock, exposing the combination lock.

[0029] In this technical solution, to enhance the security performance of the combination lock, a hidden component 7 is incorporated. This component covers the combination lock while it is in operation, protecting it from dust and rain, thus extending its lifespan. Furthermore, it increases the difficulty of physically damaging the lock, further enhancing security. Specifically, when the cabinet door 3 is normally closed, the combination lock's control panel is completely concealed by a hollow cover 71. This cover 71 is connected to a flip plate 73 located in an inconspicuous trigger slot 72 at the bottom of the cabinet door 3 via a connecting rod 79, a slider 76, and a pull cable 74. Under normal conditions, the flip plate 73 fits seamlessly with the front of the cabinet door 3, appearing flush and unremarkable, making it extremely difficult for an intruder to detect the mechanism. Only when an authorized person inserts their foot under the trigger slot 72 and applies inward force to the bottom of the flip plate 73 can the preload of the internal torsion spring be overcome, causing the flip plate 73 to deflect in a controllable manner. This proactive and targeted triggering action is transformed by the pull cable 74 into the upward sliding of the slider 76 within the slide rail 77, which in turn smoothly lifts the cover 71 via the connecting rod 79. The groove on the lower edge of the cover 71 allows it to smoothly pass over the lock housing during its ascent, thus fully exposing the lock's control panel for normal operation. After operation, once the foot is removed, the flip plate 73 automatically resets to a position flush with the door panel under the action of the torsion spring, and simultaneously pulls the cover 71 back to its original position via the pull cable 74, tightly covering the lock again. Unsuspecting unauthorized personnel cannot discover or correctly trigger this hidden mechanism; therefore, the lock remains under the protection of the cover 71, greatly increasing the difficulty of direct physical damage or technical spying on the lock.

[0030] This invention achieves invisible physical protection for combination locks. Firstly, the integrated design of the flip panel 73 and cabinet door 3 makes the protective mechanism completely invisible to unsuspecting individuals, eliminating the possibility of targeted attacks and providing strong concealment. Secondly, the additional trigger threshold, requiring specific methods to remove the cover, adds a physical authentication step to the combination lock, making simple pick-and-smash attacks impossible. Simultaneously, environmental protection and early warning are provided. When normally closed, the cover 71 effectively prevents dust and splashes, protecting the lock's delicate components; any unconventional attempts to discover and trigger this mechanism will consume a significant amount of the intruder's time and may leave traces, serving as an indirect early warning.

[0031] Example 3: Please see Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the active protection component includes a gear 63, which is coaxially fixed to a hinge shaft fixed to the cabinet door 3. This hinge shaft is actually the hinge part of the hinge chain fixed to the cabinet door 3. It is entirely feasible to install the gear 63 in this space without affecting the opening and closing of the cabinet door 3. The specific installation method can be adapted according to the actual situation, and will not be elaborated here. A meshing gear ring 64 is provided on one side of the gear 63. The gear ring 64 is rotatably mounted on the inner side wall of the cabinet body 1. An eccentric wheel 65 is fixed at the center of the top of the gear ring 64. An insertion hole 66 is provided on the top of the eccentric wheel 65. An insertion rod 67 is adapted in the insertion hole 66. The end of the insertion rod 67 is fixedly connected to the pull cable 74 through a connector 68. A limiting sleeve 69 is also sleeved on the outside of the insertion rod 67. The limiting sleeve 69 is fixedly mounted on the back of the cabinet door 3.

[0032] The active protection system also includes an audible and visual alarm 8 and an active spray system 9; The audible and visual alarm 8 is installed inside the top of cabinet 1; An active spraying component 9 is installed on the top of the cabinet 1, and a water collection tank 91 is installed on the upper surface of the cabinet 1. The top of the water collection tank 91 is open and covered by a dustproof net. A pressure pump 92 is installed inside the water collection tank 91, and the pressure pump 92 supplies water from the water collection tank 91 to the nozzles 93 through pipes. Multiple nozzles 93 are installed and evenly arranged on the cabinet 1 above the cabinet door 3. A touch switch module 94 is installed on the cabinet 1 at the movement trajectory of the eccentric wheel 65. The touch switch module 94, the audible and visual alarm 8, and the pressure pump 92 are electrically connected. The touch switch module 94 is installed on a vertical slide rail 95 on the cabinet 1. A first magnet 96 is installed on the top of the touch switch. The first magnet 96 and the second magnet 97 sleeved on the top of the plug rod 67 are magnetically attracted. When the eccentric wheel 65 presses the touch switch module 94, the pressure pump 92 and the audible and visual alarm 8 start to work.

[0033] Based on Embodiments 1 and 2, this embodiment designs the active protection mechanism 6 and adds an independent and reliable purely mechanical emergency triggering method. The purpose is to ensure that even if the sensing unit or the combination lock fails completely due to extreme damage or malfunction, as long as the intruder does not operate according to the correct procedure and forcibly turns the cabinet door 3, the active protection can still be reliably triggered through pure mechanical linkage, thus forming a dual insurance mechanism with both controller control and mechanical physical triggering. Specifically, when the cabinet door 3 is damaged without opening the cover 71, the action of opening the cabinet door 3 will cause the gear 63, which is coaxially fixed on the hinge shaft of the cabinet door 3, to rotate with the door and drive the gear ring 64 that meshes with it to rotate. The eccentric wheel 65, which is fixed at the center of the gear ring 64, will then perform a circular motion. The insertion hole 66 on the eccentric wheel 65 is fitted with an insertion rod 67. The insertion rod 67 is fixed to the pull cable 74 through the connector 68 and is restricted by the limiting sleeve 69 on the cabinet door 3. In the normal closed state, the cover 71 of the hidden component 7 is in the lowered position and indirectly locks the pull cable 74, so that the insertion rod 67 cannot move freely. At this time, the eccentric wheel 65 and the gear 63 set cause the cabinet door 3 to be locked. Only when the process of the hidden component 7 is executed normally will the insertion rod 67 be pulled out of the eccentric wheel 65. At the same time, the insertion rod 67 drives the touch switch module 94 to move upward synchronously through two magnetically attracted magnets, thereby breaking away from the movement trajectory of the eccentric wheel 65, allowing the cabinet door 3 to be opened safely without triggering the active protection component. However, when an intruder fails to trigger the flip plate 73 of the hidden component 7 and forcibly turns the cabinet door 3, the cable 74 remains locked. The eccentric wheel 65 insert rod 67 and the second magnet 97 fixed at its top strongly attract the first magnet 96 installed on the touch switch module 94, forcing the entire touch switch module 94 to always be on the movement trajectory of the eccentric wheel 65. Therefore, when the cabinet door 3 is opened, the eccentric wheel 65 will be driven by the gear 63 group to trigger the touch switch module 94, thereby directly connecting the power circuit of the audible and visual alarm 8 and the pressure pump 92 in the active spray component 9, instantly starting the alarm and water spraying. The whole process does not require any electronic controller intervention.

[0034] This solution, on the one hand, ensures that active protection can still be triggered under any extreme circumstances that cause intelligent judgment to fail, thus achieving comprehensive security coverage without blind spots in protection response, through the aforementioned mechanical transmission method. On the other hand, it forms a trigger interlock with the hidden component 7. The activation condition of this mechanical trigger path is strictly limited to the specific violation scenario of forcibly opening the door without correctly triggering the hidden mechanism. This forces intruders to simultaneously crack both the method of discovering the hidden entrance and resisting forced counterattack, thereby combining the pre-emptive deception and delay function of the hidden component 7 with the final detection and counterattack capability of the active protection component to comprehensively improve the overall security performance of the power cabinet.

[0035] A method for using an intelligent microgrid power distribution cabinet includes the following steps: S1. Normal opening: First, operate the cover 71 of the hidden component 7 to move away, exposing the combination lock operation panel; then operate the combination lock to enter the correct password, and the bolt 55 retracts; the retraction of the bolt 55 drives the telescopic end of the passive protection mechanism 5 to exit from the through groove 53 of the cabinet 1 through the connecting rod 51, releasing the secondary reinforcement of the cabinet door 3; at this time, since the telescopic end has been withdrawn, the infrared laser path of the sensing unit is restored, the controller determines that it is a legal operation, and the cabinet door 3 can be safely opened without triggering active protection; S2. Unauthorized entry: When cabinet door 3 is opened, if the controller does not receive the correct unlocking signal from the combination lock, but at the same time detects that the infrared laser is blocked through the sensing unit, indicating that the passive protection mechanism 5 is still in the working locked state, it is determined to be unauthorized entry, and the controller triggers the active protection component.

[0036] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A smart microgrid power cabinet, comprising a cabinet body, a base, and a controller, wherein the bottom of the cabinet body is detachably and fixedly mounted on the base; a cabinet door is hinged to the cabinet body, and the cabinet door is locked to the cabinet body by a combination lock; Its features are, A passive protection mechanism is installed on the side of the cabinet door away from the combination lock, which is used to reinforce the cabinet door. An active protection mechanism is also installed on the cabinet body, which is detected by a trigger unit installed on the cabinet door. When the cabinet door is forced to open, the active protection mechanism is activated to perform active protection.

2. The intelligent microgrid power distribution cabinet according to claim 1, characterized in that, The passive protection mechanism includes a connecting rod and multiple telescopic rods. One end of each telescopic rod is fixedly mounted on the cabinet door, and a through groove is provided on the cabinet body at the position corresponding to the telescopic end of the rod. A rubber ring is fitted on the telescopic end of the rod. The telescopic ends of multiple rods are fixedly mounted on a truss. The middle part of the truss is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is fixedly mounted on the bolt of the combination lock. The telescopic ends of the rods all extend outward from the through groove. The power of the bolt is transmitted through the connecting rod, so that the passive protection mechanism and the combination lock can operate synchronously.

3. The intelligent microgrid power distribution cabinet according to claim 1 or 2, characterized in that, Active protection organizations include: The sensing unit determines whether unauthorized entry is occurring by verifying both the passive protection mechanism and the status of the combination lock. The active protection component triggers an audible and visual alarm and an active spray system when it detects unauthorized entry, in order to drive away the unauthorized personnel.

4. The intelligent microgrid power distribution cabinet according to claim 3, characterized in that, The sensing unit includes an infrared laser transmitter and an infrared laser receiver. The infrared laser transmitter is located on the cabinet above the top slot, and the infrared laser receiver is located on the cabinet below the bottom slot. The infrared laser transmitter and the infrared laser receiver are positioned facing each other. When the laser emitted by the infrared laser emitter is received by the infrared laser receiver, the passive protection component is in a non-operating state; otherwise, the passive protection component is in an operating state.

5. The intelligent microgrid power distribution cabinet according to claim 4, characterized in that, The cabinet door is also equipped with a hidden component, which includes a movable cover and a trigger mechanism. When the cabinet door is closed, the trigger mechanism drives the cover to cover the operation panel of the combination lock. When the cabinet door is opened, the trigger mechanism moves the cover away, exposing the operation panel of the combination lock for operation.

6. The intelligent microgrid power distribution cabinet according to claim 5, characterized in that, The triggering mechanism includes a trigger slot and a flip plate. The trigger slot is located at the bottom of the cabinet door, and the flip plate is rotatably connected to the trigger slot via a torsion spring. One end of the flip plate is connected to a pull cable, which passes around a guide wheel on the back of the cabinet door and is fixedly connected to a slider. The slider is slidably installed in a slide rail on the back of the cabinet door. A through slot is provided inside the slide rail, and a connecting rod is provided in the through slot. The two ends of the connecting rod are fixedly connected to the slider and the cover, respectively. The cover is hollow, and a slot for the combination lock to enter and exit is provided on the lower edge of the cover. When the flip panel changes from being flush with the front of the cabinet door to a tilted position, pull the slider upward to reset it, thereby causing the connected cover to detach from the combination lock, exposing the combination lock.

7. The intelligent microgrid power distribution cabinet according to claim 6, characterized in that, The active protection component includes a gear, which is coaxially fixed to a hinge shaft that is fixed to the cabinet door. A meshing gear ring is provided on one side of the gear, and the gear ring is rotatably mounted on the inner side wall of the cabinet. An eccentric wheel is fixed at the center of the top of the gear ring, and an insertion hole is provided at the top of the eccentric wheel. An insertion rod is fitted into the insertion hole, and the end of the insertion rod is fixedly connected to a cable through a connector. A limiting sleeve is also fitted over the insertion rod, and the limiting sleeve is fixedly mounted on the back of the cabinet door.

8. The intelligent microgrid power distribution cabinet according to claim 3 or 7, characterized in that, The active protection system also includes audible and visual alarms and active spray systems; The audible and visual alarm is installed at the top of the cabinet. The active spraying unit is located on the top of the cabinet, and a water collection tank is installed on the upper surface of the cabinet. The top of the water collection tank is open and covered by a dustproof net. A pressure pump is installed inside the water collection tank, and the pressure pump supplies water from the water collection tank to the spray nozzles through pipes. Multiple spray nozzles are installed and evenly arranged on the cabinet above the cabinet door. A touch switch module is installed on the cabinet at the location corresponding to the movement trajectory of the eccentric wheel. The touch switch module, the audible and visual alarm, and the pressure pump are electrically connected. The touch switch module is installed on a vertical slide rail on the cabinet. A first magnet is installed on the top of the touch switch. The first magnet and a second magnet sleeved on the top of the plug are magnetically attracted to each other. When the eccentric wheel presses the touch switch module, the pressure pump and the audible and visual alarm start to work.

9. A method of using the intelligent microgrid power cabinet according to any one of claims 1-5, characterized in that, Includes the following steps: S1. Normal opening: First, operate the cover of the hidden component to remove it, exposing the control panel of the combination lock; then operate the combination lock to enter the correct password, and the bolt will retract; the retraction of the bolt will synchronously drive the telescopic end of the passive protection mechanism to exit from the cabinet through groove through the linkage, thus removing the secondary reinforcement of the cabinet door. At this point, since the telescopic end has been withdrawn, the infrared laser path of the sensing unit is restored, the controller determines that it is a legal operation, and the cabinet door can be safely opened without triggering active protection. S2. Unauthorized Entry: When the cabinet door is opened, if the controller does not receive the correct unlocking signal from the combination lock, but at the same time detects that the infrared laser is blocked through the sensing unit, indicating that the passive protection mechanism is still in the working locked state, it is determined to be unauthorized entry, and the controller triggers the active protection component.

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