Ring main unit bin door used for being matched with rear insertion type quick connector, ring main unit and using method

Abstract

The invention discloses a ring main unit bin door used for being matched with a rear insertion type quick connector, a ring main unit and a using method. The ring main unit bin door comprises a bin door body, a first locking assembly and a second locking assembly. The bin door main body is arranged on the ring main unit, and the bin door main body is locked on the ring main unit through the first locking assembly and / or the second locking assembly; the first locking assembly is configured to lock the bin door main body when the ring main unit is electrified, and the second locking assembly is configured to lock the bin door main body when being driven. The first locking assembly and the second locking assembly are integrated on the bin door main body, so that when the bin door main body is applied to a conventional ring main unit, the first locking assembly can lock the bin door main body when the ring main unit is powered on, and at the moment, the second locking assembly plays a role in standby and redundant setting; and when the bin door is applied to ring main units of other specifications and the first locking assembly cannot be normally used, the bin door main body is locked through the second locking assembly, so that the bin door is adaptive to various ring main units of different types, and the safety is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of generator emergency power supply, and in particular to a ring main unit door, a ring main unit, and a method of use for cooperating with a rear-insertion quick connector. Background Art

[0002] In related technologies, a generator quick connector is usually reserved on the ring main unit, which is directly connected to the ring main unit through the cable quick connector for grid connection. After grid connection, the ring main unit door will automatically lock.

[0003] However, in actual applications, some ring main units do not have reserved quick connectors, and in this case, the door will not be compatible with the ring main unit. If the quick connector is not installed, the door of the ring main unit needs to be opened before the grid connection operation is carried out. At this time, the door cannot be set to automatically lock after the grid connection. If the quick connector is installed in the ring main unit cabinet before the grid connection operation is carried out, the installation space of the original ring main unit will be increased. It is even possible that the door cannot be closed after the installation, resulting in the failure of the five-protection interlocking system. Both of the above situations are prone to safety hazards. Summary of the Invention

[0004] The present application proposes a ring main unit door for use with a rear-insertion quick connector, which can be adapted to a variety of different types of ring main units, effectively solving the technical problem of potential safety hazards in ring main units in related technologies.

[0005] The present application also proposes a ring main unit comprising the above-mentioned ring main unit door for cooperating with the rear-insertion quick connector.

[0006] This application also proposes a method for using the above-mentioned ring main unit.

[0007] A first embodiment of the present application provides a ring main unit door for use with a rear-insertion quick connector, comprising: a door body, a first locking assembly, and a second locking assembly;

[0008] The door body is arranged on the ring main unit, and the door body is locked on the ring main unit by the first locking component and / or the second locking component;

[0009] The first locking assembly is configured to lock the compartment door body when the ring main unit is powered on, and the second locking assembly is configured to lock the compartment door body when driven.

[0010] Furthermore, the first locking assembly includes an electromagnetic lock assembly and a sensor component, the sensor component is used to send a charged signal when the ring network cabinet is powered on, and the electromagnetic lock assembly is configured to lock the warehouse door body according to the charged signal of the sensor component.

[0011] Furthermore, the electromagnetic lock assembly includes an electromagnetic drive component and a lock rod, and the electromagnetic drive component is used to drive the lock rod to extend and retract.

[0012] Furthermore, the second locking assembly includes a box body, a lock head assembly, a first elastic component and a limiting component;

[0013] The lock assembly is arranged on the box body and can be driven to move so that the lock assembly can lock or unlock the door body;

[0014] The first elastic component is used to provide an elastic force acting on the lock assembly, so that the lock assembly can be maintained in or reset to a position that locks the door body;

[0015] The limiting component is used to limit the lock head assembly when it moves to the unlocking position.

[0016] Furthermore, the lock assembly includes a limit lock and an installation component, the limit lock is arranged on the installation component, the installation component is arranged on the box body and can be driven to move, a limit groove is formed on the installation component, the limit component includes a device box and a limit block, the device box is arranged on the box body, and the limit block is arranged on the device box and can be driven to move, so that the limit block can limit the position of the installation component by being snapped into the limit groove.

[0017] Furthermore, the limiting component includes a second elastic component and a pull rod, the second elastic component is used to provide an elastic force acting on the limiting block so that the limiting block can be maintained at or reset to a position where it is stuck in the limiting groove, and the pull rod is connected to the limiting block and is used to drive the limiting block to move.

[0018] Furthermore, a first guide structure is provided between the device box and the limit block, and the first guide structure is used to guide the movement of the limit block;

[0019] And / or a second guiding structure is formed on the installation component and / or the limiting block, and when the limiting lock head moves toward the unlocking position, the limiting block is locked into the limiting groove under the guidance of the second guiding structure.

[0020] Furthermore, the mounting component includes a first mounting seat, a second mounting seat and a movable member;

[0021] One end surface of the first mounting seat is used to set the limit lock head, and the first elastic component acts on the other end surface opposite to the first mounting seat;

[0022] The limiting groove is formed on the second mounting seat, one side surface of the second mounting seat is arranged on one side surface of the first mounting seat through the movable member, and the other side surface of the second mounting seat opposite to the first mounting seat is driven to move the first mounting seat;

[0023] The movable member is movably arranged on the box body. A third guide structure is provided between the movable member and the box body. The third guide structure is used for guiding the movement of the first mounting seat.

[0024] It can be seen from the above technical solutions that the embodiments of the present application have at least the following beneficial effects: by integrating the first locking component and the second locking component on the warehouse door body, when the warehouse door body is applied to a conventional ring main unit, after the ring main unit is connected to the power grid, the first locking component can lock the warehouse door body when the ring main unit is powered on. At this time, the second locking component serves as a backup, redundant setting and can pre-position the warehouse door body; when the warehouse door body is applied to ring main unit cabinets of other specifications and the first locking component cannot be used normally, the warehouse door body can be locked by the second locking component, thereby ensuring safe use on the basis of adapting to a variety of different types of ring main unit cabinets.

[0025] A second aspect of the present application provides a ring main unit (RMU) comprising: a RMU door for cooperating with a rear-plug quick connector as in the first aspect of the present application.

[0026] A third embodiment of the present application provides a method for using a ring main unit, comprising the following steps:

[0027] Closing the door body to the door of the ring main unit, and locking the door body to the ring main unit through the second locking assembly;

[0028] Connecting the ring main unit to the power grid;

[0029] The first locking assembly locks the door body on the ring main unit in response to a power-on signal of the ring main unit.

[0030] It is not difficult to understand that the method of using the ring main unit in the second aspect embodiment of the present application and the ring main unit in the third aspect embodiment of the present application both have the technical effects of the ring main unit door for cooperating with the rear plug-in quick connector in the first aspect embodiment, and therefore will not be repeated.

[0031] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 A front view of a ring main unit door for use with a rear-insertion quick connector provided in one embodiment of the present application;

[0034] Figure 2 A top view of a ring main unit door locked on a ring main unit for use with a rear-insertion quick connector, provided in accordance with an embodiment of the present application;

[0035] Figure 3 A schematic structural diagram of a second locking assembly provided in one embodiment of the present application;

[0036] Figure 4 An internal schematic diagram of a second locking assembly provided in one embodiment of the present application;

[0037] Figure 5 for Figure 4 A magnified view of middle A;

[0038] Figure 6 A schematic diagram of a lock assembly provided in one embodiment of the present application;

[0039] Figure 7 A schematic diagram of a ring main unit connected to the power grid according to an embodiment of the present application.

[0040] Reference numerals:

[0041] 100. Door body; 110. Through hole;

[0042] 200, first locking assembly; 210, electromagnetic lock assembly; 220, sensor component;

[0043] 300, second locking assembly; 310, housing; 320, lock assembly; 321, position-limiting lock; 322, mounting component; 3221, position-limiting groove; 3222, second guide structure; 3223, first mounting seat; 3224, second mounting seat; 3225, movable member; 330, first elastic member; 340, position-limiting member; 341, device box; 342, position-limiting block; 343, second elastic member; 344, pull rod; 350, first guide structure; 360, third guide structure;

[0044] 400, cabinet door;

[0045] 500, power generation vehicle;

[0046] 600. Cable. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0048] The "five protections" of a ring main unit (RMU) refer to five safeguards designed to ensure safe power system operation and prevent accidents caused by misoperation and equipment failure. These include preventing accidental opening / closing of circuit breakers, preventing opening / closing of disconnectors under load, preventing live grounding (or closing of grounding switches), preventing power transmission with a live grounding (or closing of grounding switches), and preventing accidental entry into live compartments. Multiple mechanical and electrical interlocks and logic controls create a "layered protection" system, and the door 100 is locked to the RMU. This fundamentally prevents human error and equipment abnormality, ensuring power system safety.

[0049] See also Figures 1 to 7 As shown, an embodiment of the first aspect of the present application discloses a ring main unit door for cooperating with a rear-insertion quick connector, including a door body 100, a first locking assembly 200 and a second locking assembly 300.

[0050] The door body 100 is arranged on the ring main unit, and the door body 100 is locked on the ring main unit through the first locking component 200 and / or the second locking component 300; wherein, the first locking component 200 is configured to lock the door body 100 when the ring main unit is powered on, and the second locking component 300 is configured to lock the door body 100 when driven.

[0051] In an embodiment of the present application, the first locking component 200 and the second locking component 300 are integrated on the warehouse door body 100, so that when the warehouse door body 100 is used in a conventional ring main unit, after the ring main unit is connected to the power grid, the first locking component 200 can lock the warehouse door body 100 when the ring main unit is powered on. At this time, the second locking component 300 serves as a backup, redundant setting and can pre-position the warehouse door body 100; when the warehouse door body 100 is used for ring main unit cabinets of other specifications and the first locking component 200 cannot be used normally, the warehouse door body 100 can be locked by the second locking component 300, thereby ensuring safety of use on the basis of adapting to a variety of different types of ring main unit cabinets.

[0052] It is understandable that the door body 100 of the embodiment of the present application is arranged at the cabinet door 400 of the ring main unit in an openable and closable manner. When the door body 100 is closed on the cabinet door 400, if the ring main unit is energized, the door body 100 is locked to the ring main unit by the action of the first locking component 200. Based on the setting of the first locking component 200, the door body 100 cannot be opened when the ring main unit is energized, thereby improving the five-protection function. On this basis, by providing a spare second locking component 300 on the door body 100, when the ring main unit door for cooperating with the rear plug-in quick connector in the embodiment of the present application is used on some non-standard old-style ring main unit doors 400, it can be forced to lock through the second locking component 300, adapting to a variety of application scenarios and improving flexibility.

[0053] It should be understood that the door body 100 can maintain the five protection functions of the ring main unit (RMU) when locked using the first locking assembly 200 or the second locking assembly 300, or when locked using both the first locking assembly 200 and the second locking assembly 300. Based on the coordinated arrangement of the first locking assembly 200 and the second locking assembly 300, the protective function of the RMU door for use with the rear plug-in quick connector of the embodiment of the present application can be improved. On the basis of being adaptable to a variety of different types of RMUs, the safety hazards of RMUs in the related art are effectively resolved.

[0054] Among them, the second locking component 300 is driven to lock the warehouse door body 100. In some embodiments, the way in which the second locking component 300 is driven includes but is not limited to: a technician manually operates the second locking component 300, configures a driving mechanism to directly drive the second locking component 300, or a driving mechanism cooperates with a transmission mechanism to indirectly drive the second locking component 300, thereby achieving the effect of locking the warehouse door body 100.

[0055] Among them, the first locking component 200 is configured to lock the warehouse door body 100 when the ring main unit is powered on, and the implementation forms include various embodiments. In some embodiments, a detection component can be set to detect the power supply inside the ring main unit, and after obtaining the corresponding detection information, it can be fed back to the control device, and the control device controls the first locking component 200 to lock. In some embodiments, it can also be set to directly trigger the first locking component 200 to lock the warehouse door body 100 after obtaining the corresponding detection information. In some embodiments, the first locking component 200 can also be connected to the power circuit inside the ring main unit so that the first locking component 200 is also powered on and activated at the moment of power on. In other embodiments, the first locking component 200 of the embodiment of the present application can also be configured according to actual conditions and in combination with the conventional configuration method of the commonly used components of the live locking, so as to achieve the effect of locking the warehouse door body 100.

[0056] In some embodiments, the first locking assembly 200 is disposed on the door body 100, enabling the door body 100 to be locked to the ring main unit (RMU) by the first locking assembly 200. In other embodiments, the first locking assembly 200 is disposed on the RMU, and the door body 100 cooperates with the first locking assembly 200 to achieve the effect of locking to the RMU. The configuration method can be selected based on actual conditions. Furthermore, in some embodiments, the first locking assembly 200 can lock the door body 100 by itself, or the first locking assembly 200 can drive the door locking component or fixing component to fix the position of the door body 100 to achieve locking.

[0057] Similarly, in some embodiments, the second locking assembly 300 may be configured in the same manner as the first locking assembly 200 described above, and will not be further described herein.

[0058] The following will be combined Figures 1 to 7 The ring main unit door for cooperating with the rear-insertion quick connector disclosed in the embodiment of the present application is specifically explained and illustrated.

[0059] In some embodiments of the present application, reference is made to Figure 2 The first locking assembly 200 includes an electromagnetic lock assembly 210 and a sensor component 220. The sensor component 220 is used to send a charged signal when the ring main unit is powered on. The electromagnetic lock assembly 210 is configured to lock the warehouse door body 100 according to the charged signal of the sensor component 220.

[0060] It is understood that the electromagnetic lock assembly 210 is used to lock the door body 100 when the ring main unit is energized, and to unlock the door body 100 in the event of a power outage or through direct control by a technician. To this end, the sensor component 220 is used to collect electrical signals and feed them back to the electromagnetic lock component. The sensor component 220 is configured to promptly feed back the energized signal to the electromagnetic lock assembly 210 when the ring main unit is energized. This allows the electromagnetic lock assembly 210 to automatically secure the door body 100 to the door opening of the ring main unit after sensing the energized signal from the sensor component 220, thereby preventing the door body 100 from being opened when energized, and improving the five-protection function.

[0061] Among them, the sensor component 220 is used to detect the power supply status of the ring main unit and send a corresponding electrical signal to trigger the operation of the electromagnetic lock assembly 210. In some embodiments, the power supply status can be achieved by monitoring common parameters such as current and voltage that can reflect the power supply status. Specifically, the sensor component 220 is a signal sensor. By monitoring and collecting current and voltage signals and feeding the signals back to the electromagnetic lock assembly 210, the electromagnetic lock assembly 210 can be controlled to lock the compartment door body 100 when the ring main unit is in a energized state. In some embodiments, the first locking assembly 200 can include components such as a control device and a signal processor. The sensor component 220 is used in conjunction with the control device and signal processor to improve the control process of the operation of the electromagnetic lock assembly 210.

[0062] Furthermore, the electromagnetic lock assembly 210 includes an electromagnetic drive component and a locking rod. The electromagnetic drive component is used to drive the locking rod to extend and retract. It will be understood that the electromagnetic drive component controls the mechanical movement of the locking rod through electromagnetic force, thereby achieving the locking and unlocking functions. Therefore, the electromagnetic lock assembly 210 of the embodiment of the present application is disposed on the door body 100. When the door body 100 is located on the RMU cabinet door 400, the locking rod extends and engages the RMU cabinet door 400, thereby securing the door body 100 to the cabinet door 400 and achieving locking through the locking rod's position.

[0063] In other embodiments, the first locking assembly 200 may also adopt common lock assemblies such as electric, hydraulic or pneumatic locks based on the sensor component 220 to achieve similar effects as those obtained in the above embodiments, which will not be described in detail.

[0064] In some embodiments of the present application, reference is made to Figure 3 and Figure 4 The second locking assembly 300 includes a box body 310, a lock assembly 320, a first elastic component 330 and a limiting component 340; the lock assembly 320 is arranged on the box body 310 and can be driven to move so that the lock assembly 320 can lock or unlock the warehouse door body 100; the first elastic component 330 is used to provide an elastic force acting on the lock assembly 320 so that the lock assembly 320 can maintain or reset to a position that locks the warehouse door body 100; the limiting component 340 is used to limit the lock assembly 320 that moves to the unlocked position.

[0065] It is understood that the housing 310 serves as the mounting base, and the lock assembly 320, first elastic member 330, and limiting member 340 are disposed on the housing 310 and are capable of performing their corresponding functions. The lock assembly 320 is movably disposed so as to be switchable between a locked position, in which the door body 100 is locked, and an unlocked position, in which the door body 100 is unlocked. The first elastic member 330 acts on the lock assembly 320, causing the lock assembly 320 to tend to return to the locked position. Thus, when the lock assembly 320 is driven, it can switch between the two positions and remain in the locked position when not subject to external forces or when the direction of the external force is consistent with the direction of the force applied by the first elastic member 330, thereby ensuring the locking effect of the lock assembly 320. The limiting component 340 can be adjusted to lock or unlock the lock head assembly 320. It can be understood that the limiting component 340 is used to lock the position of the lock head assembly 320 when it reaches the unlocking position, so that the lock head assembly 320 can overcome the action of the first elastic component 330 and other forces and maintain it in the unlocking position, which is convenient for technicians to operate.

[0066] In some embodiments, the first elastic member 330 is disposed on the housing 310 and acts on the lock assembly 320, thereby providing the elastic force required to reset or maintain the lock of the lock assembly 320. In other embodiments, the first elastic member 330 may be disposed on other fixed structural components and act on the lock assembly 320 to achieve similar effects as described above, which will not be described further.

[0067] In some embodiments, the limiting component 340 can be configured to include but not be limited to: a component with a commonly used limiting structure such as a limiting groove or a limiting hole, or a component in which at least two relatively movable limiting parts cooperate with each other to limit the lock head assembly 320, and other structural forms. The structure of the limiting component 340 can be specifically designed according to actual usage requirements to achieve the effect of reliably locking the lock head assembly 320.

[0068] In some embodiments of the present application, reference is made to Figure 3 and Figure 4 The lock assembly 320 includes a limit lock 321 and a mounting component 322. The limit lock 321 is arranged on the mounting component 322. The mounting component 322 is arranged on the box body 310 and can be driven to move. A limit groove 3221 is formed on the mounting component 322. The limit component 340 includes a device box 341 and a limit block 342. The device box 341 is arranged on the box body 310. The limit block 342 is arranged on the device box 341 and can be driven to move, so that the limit block 342 can limit the position of the mounting component 322 by being snapped into the limit groove 3221.

[0069] It is understood that the mounting member 322 serves as a mounting base and can be driven to move while being acted upon by the first elastic member 330. The limit lock 321 is disposed on the mounting member 322 and moves with the movement of the mounting member 322, thereby locking or unlocking the door body 100 via the limit lock 321. A limit groove 3221 is formed on the mounting member 322 to cooperate with the limit member 340. With the device box 341 serving as a mounting base, a limit block 342 is movably disposed within the device box 341. When the mounting member 322 reaches a position where it can cooperate with the limit block 342, the limit block 342 moves and engages with the limit groove 3221, thereby limiting the mounting member 322 and the limit lock 321 disposed thereon. At this point, the door body 100 can be opened from the ring main unit.

[0070] In other embodiments, a limit block 342 is movably provided on the installation component 322, and a limit groove 3221 is formed in the device box 341. When the installation component 322 reaches the unlocked position, the movable limit block 342 is embedded in the limit groove 3221, which can also achieve the above-mentioned similar effect.

[0071] Specifically, after the position-limiting lock head 321 leaves the locked position capable of locking the door body 100, it can be considered to be in the unlocked position. By setting the device box 341 at a preset position, when the mounting component 322 reaches a position capable of cooperating with the device box 341, the position-limiting lock head 321 can be limited to the unlocked position by the position-limiting block 342. In this regard, in some embodiments, the device box 341 is adjustably mounted on the housing 310, so that the specific position to which the position-limiting lock head 321 is limited can be adjusted accordingly while maintaining it in the unlocked position.

[0072] Furthermore, in order to make the movement of the limit block 342 more convenient and the limiting effect of the limit block 342 better, in some embodiments of the present application, reference is made to Figure 5 and Figure 6 The limiting component 340 includes a second elastic component 343 and a pull rod 344. The second elastic component 343 is used to provide an elastic force acting on the limiting block 342 so that the limiting block 342 can be maintained at or reset to a position where it is stuck in the limiting groove 3221. The pull rod 344 is connected to the limiting block 342 and is used to drive the limiting block 342 to move.

[0073] It is understood that the provision of the pull rod 344 allows a technician to directly operate the pull rod 344 to move the limit block 342, thereby facilitating the movement of the limit lock head 321. The second elastic component 343 acts directly on the limit block 342, allowing the limit block 342 to have a tendency to embed in the limit groove 3221 without being subjected to external forces, thereby ensuring the limiting effect. When unlocking is required, the pull rod 344 drives the limit block 342 to overcome the elastic force of the second elastic component 343 and exit the limit groove 3221.

[0074] In some embodiments, the first elastic component 330 and the second elastic component 343 may be configured as springs or other structural members that can generate elastic force by utilizing elastic deformation of metal or non-metal materials.

[0075] Further, refer to Figure 6 A first guide structure 350 is provided between the device box 341 and the limit block 342. The first guide structure 350 is used to guide the movement of the limit block 342. It can be understood that the first guide structure 350 is used to make the movement of the limit block 342 smoother and the position after adjustment more accurate, that is, the first guide structure 350 is also used to increase the position accuracy of the limit block 342.

[0076] In some embodiments, the first guide structure 350 includes, but is not limited to, a commonly used guide structure such as a guide groove, a guide rod, or a guide rail. Specifically, the first guide structure 350 includes a first guide block and a first guide groove. The first guide block is slidably disposed within the first guide groove. When the first guide block is disposed on the device box 341, the first guide groove is disposed on the limit block 342. When the first guide block is disposed on the limit block 342, the first guide groove is disposed on the device box 341.

[0077] It should be understood that in order to make the cooperation between the limiting component 340 and the lock head assembly 320 smoother, simpler and more accurate, the cooperation structure design between the limiting groove 3221 and the limiting lock head 321 is the key to achieve the above functions. Figure 5 and Figure 6 In some embodiments of the present application, a second guide structure 3222 is formed on the mounting component 322 and / or the limit block 342. When the limit lock head 321 moves toward the unlocking position, the limit block 342 is guided by the second guide structure 3222 and is stuck in the limit groove 3221.

[0078] It is understood that the second guide structure 3222 guides the movement of the limit lock head 321. Thus, when the limit lock head 321 moves, after the limit block 342 contacts the second guide structure 3222, it is guided by the second guide structure 3222 to move against the force of the second elastic member 343 until it is engaged with the limit groove 3221. The movement direction of the limit block 342 and the movement direction of the limit lock head 321 toward the unlocked position are at a predetermined angle. Therefore, the second guide structure 3222 is also used to convert the direction of the interaction force, so that the limit block 342 is engaged with the limit groove 3221 under the guidance of the second guide structure 3222.

[0079] In some embodiments, the second guide structure 3222 can be configured to include, but not be limited to, a guide slope, a guide rail, or a guide groove. In some embodiments, the second guide structure 3222 can be provided on the position-limiting lock head 321 or the mounting component 322 to achieve a guiding function. Furthermore, the position-limiting lock head 321 and the mounting component 322 are both provided with guide slopes. The two guide slopes can cooperate with each other and provide a guiding function, making the coordination between the position-limiting component 340 and the lock head assembly 320 smoother, simpler, and more precise.

[0080] In some embodiments, reference Figures 4 to 6 The mounting component 322 includes a first mounting seat 3223, a second mounting seat 3224 and a movable member 3225; one end surface of the first mounting seat 3223 is used to set the limit lock head 321, and the first elastic member 330 acts on the other end surface opposite to the first mounting seat 3223; a limiting groove 3221 is formed on the second mounting seat 3224, and one side surface of the second mounting seat 3224 is set on one side surface of the first mounting seat 3223 through the movable member 3225, and the other side surface opposite to the second mounting seat 3224 is used to be driven to drive the first mounting seat 3223 to move; the movable member 3225 is movably set on the box body 310, and a third guide structure 360 ​​is provided between the movable member 3225 and the box body 310, and the third guide structure 360 ​​is used to guide the movement of the first mounting seat 3223.

[0081] It can be understood that the structure of the mounting component 322 is designed in a targeted manner, and the first mounting seat 3223 is used as the basis for setting the limit lock 321 and the first elastic component 330, and the second mounting seat 3224 is used as the basis for cooperating with the limit component 340, and the movable part 3225 is used to connect the first mounting seat 3223 and the second mounting seat 3224 into a whole, and on this basis, the movable part 3225 is slidably set on the box body 310, so that the overall structural design is reasonable through the setting method of each performing its own function.

[0082] In some embodiments, the third guide structure 360 ​​includes, but is not limited to, a commonly used guide structure such as a guide groove, a guide rod, or a guide rail. Specifically, the third guide structure 360 ​​includes a second guide block and a second guide groove. The second guide block is slidably disposed within the second guide groove. When the second guide block is disposed on the movable member 3225, the second guide groove is disposed on the housing 310. When the second guide block is disposed on the housing 310, the second guide groove is disposed on the movable member 3225.

[0083] In some embodiments, the ring main unit door of the embodiment of the present application for cooperating with the rear-plug quick connector can be equipped with a storage energy lighting lamp and a video surveillance camera. The storage energy lighting lamp provides light illumination for the door body 100, and the video surveillance camera performs video monitoring on the door body 100 and transmits the real-time video image to the mobile phone APP so that the back-end supervisor can know the actual situation.

[0084] The following describes in detail a ring main unit door for use with a rear plug-in quick connector according to an embodiment of the present application using a specific embodiment. It should be noted that the following embodiment is merely an illustrative description and should not be construed as limiting the embodiments of the present application.

[0085] See also Figures 1 to 7 As shown, the ring main unit door for cooperating with the rear plug-in quick connector of this embodiment can be opened and closed on the ring main unit. The ring main unit door for cooperating with the rear plug-in quick connector includes a door body 100, a first locking assembly 200 and a second locking assembly 300.

[0086] Reference Figure 1 The door body 100 is provided with an observation window, through which the operator can observe the power connection and grid connection status inside the ring main unit. A circular arc surface depression is provided on one side of the door body 100 to prevent hand injuries when assembling the door body 100.

[0087] Reference Figure 7 The main door body 100 is provided with an insertion hole 110 and a quick connector. When the rear-insertion quick access device is assembled in the RMU cabinet, the cable 600 of the power generation vehicle 500 can enter the RMU cabinet through the insertion hole 110. After the main door body 100 is locked at the door opening of the RMU cabinet, the socket of the quick connector is inserted into the rear-insertion quick access device. After the cable 600 passes through the insertion hole 110, the end of the cable 600 is inserted into the socket of the quick connector, completing the power connection and grid connection operation. Preferably, a soft pad is fixedly provided in the insertion hole 110 to prevent the surface of the cable 600 from being worn.

[0088] Further, refer to Figure 1 and Figure 2A first locking assembly 200 is provided at one end of the door body 100, and a second locking assembly 300 is provided in the middle of one end of the door body 100. By setting the first locking assembly 200 and the second locking assembly 300, the first locking assembly 200 can prevent the door body 100 from opening when the cable 600 is energized, thereby improving the five-protection function. The second locking assembly 300 can manually force the door body 100 to be locked, and can be adapted to some non-standard old-style ring network cabinet doors 400, thereby improving flexibility.

[0089] Among them, the first locking component 200 includes an electromagnetic lock, and two electromagnetic locks are provided. The two electromagnetic locks are symmetrically installed on both sides of one end of the warehouse door body 100. One end of the two electromagnetic locks is equipped with a signal sensor, and the signal sensor is connected to the electromagnetic lock signal. By setting the electromagnetic lock and the signal sensor, the electromagnetic lock and the signal sensor are equipped with a storage power supply to realize power supply. When the cable 600 is inserted into the socket of the quick connector, it is in a energized state. The signal sensor collects the current and voltage signals, and the signal sensor feeds the signal back to the electromagnetic lock. The locking rod at the end of the electromagnetic lock automatically extends and presses against the frame of the door opening of the ring network cabinet, so that the warehouse door body 100 can be fixed at the door opening of the ring network cabinet.

[0090] Among them, reference Figures 3 to 5 When the lock 310 is unlocked, the lock 310 can be unlocked, and the lock 310 can be unlocked after the lock 310 is unlocked, so that the lock 310 can be unlocked. The first guide block is fixedly provided on the side of the lifting seat, and the first guide block is slidably provided on one end of the first guide slot. A sliding seat is slidably provided on one side of the box body 310, and the other side of the first guide block is fixedly connected to one side of the sliding seat. By setting the first guide slot and the first guide block, the first guide block can slide in the vertical direction along the inner wall of the first guide slot, thereby guiding the lifting seat and the sliding seat in the vertical direction, so that the lifting seat and the sliding seat can keep rising and falling in the vertical direction. A push-pull block is fixedly provided on the other side of the sliding seat, and the push-pull block is provided to facilitate the operator to pull the sliding seat vertically down. The sliding seat makes the limit lock head 321 drop vertically through the first guide block and the lifting seat, so that the limit lock head 321 is disengaged from the frame at the door opening of the ring network cabinet, and the lock of the warehouse door main body 100 can be released.

[0091] Further, refer to Figures 3 to 6 , a device box 341 is fixedly provided on one side of the box body 310, a limit block 342 is slidably provided at one end of the device box 341, and a limit groove 3221 is provided in the middle of the sliding seat. By setting the limit block 342 and the limit groove 3221, when the limit block 342 is horizontally inserted into the limit groove 3221, the sliding seat can be limited and fixed, so that the limit lock head 321 is in a stationary state, the upper end surface of the limit block 342 is provided with an inclined surface, and the lower end surface of the sliding seat is provided with a trapezoidal groove, the trapezoidal groove and the inclined surface are vertically corresponding, and by setting the trapezoidal groove When the sliding seat is vertically lowered, the trapezoidal groove gradually contacts the inclined surface, pushing the limit block 342 to move horizontally. The inclined surface and the trapezoidal groove are gradually misaligned, and the limit block 342 moves horizontally into the device box 341. The inner wall of the device box 341 is provided with two second guide grooves. The upper and lower surfaces of the limit block 342 are fixedly provided with second guide blocks. The second guide block is slidably provided at one end of the second guide groove. By providing the second guide groove and the second guide block, the second guide block can slide horizontally along the inner wall of the second guide groove, thereby adjusting the limit block 342. The horizontal direction is guided so that the limit block 342 can slide horizontally stably in the device box 341. A pull rod 344 is provided for sliding in the device box 341. One end of the pull rod 344 is fixedly connected to the other end of the limit block 342. A tension spring is provided on the movable sleeve of the pull rod 344. One end of the tension spring is fixedly connected to the side wall of the device box 341, and the other end of the tension spring is fixedly connected to the other end of the limit block 342. By setting the pull rod 344 and the tension spring, when the limit block 342 moves horizontally to the interior of the device box 341, the pull rod 344 is forced to With synchronous movement, the limit block 342 squeezes the tension spring to contract and reset. When the limit groove 3221 on the sliding seat corresponds horizontally to the limit block 342, the tension spring stretches and resets, and the limit block 342 moves horizontally in the opposite direction and is inserted into the limit groove 3221 to limit and fix the sliding seat. A handle is fixed on the other end of the pull rod 344. By setting the handle, it is convenient for the operator to pull the pull rod 344. When the pull rod 344 is pulled, the pull rod 344 can disengage the limit block 342 from the limit groove 3221, thereby releasing the limit fixation of the sliding seat.

[0092] Finally, the middle part of the warehouse door body 100 is equipped with a video surveillance camera and a storage type lighting lamp. The video surveillance camera can be used to monitor the warehouse door body 100, and the real-time video image can be transmitted to the mobile phone APP so that the background supervisors can know the actual situation. The storage type lighting lamp can provide lighting to avoid darkness in the video image.

[0093] An embodiment of the second aspect of the present application discloses a ring main unit (RMU) comprising: a RMU door for cooperating with a rear-insertion quick connector according to an embodiment of the first aspect of the present application.

[0094] It can be understood that a ring main unit can be an electrical device that installs transmission and distribution electrical equipment such as high-voltage switchgear in a metal or non-metallic insulating cabinet or is made into an assembled interval ring main unit. Its core part uses load switches and fuses. It has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations in load centers such as urban residential areas, high-rise buildings, large public buildings, factories and enterprises.

[0095] The method for using the ring main unit according to the third aspect of the present application may be the method for using the ring main unit according to the second aspect of the present application, and the method for using the ring main unit includes the following steps:

[0096] Close the door body 100 to the cabinet door 400 of the ring main unit, and lock the door body 100 to the ring main unit through the second locking assembly 300;

[0097] Connect the ring main unit to the power grid;

[0098] The first locking assembly 200 locks the door body 100 on the ring main unit in response to a power-on signal of the ring main unit.

[0099] It can be understood that in some embodiments, when using the present warehouse door body 100, the operator first places the warehouse door body 100 at the door opening of the ring network cabinet, with the edges corresponding to each other, and at the same time, the plug of the quick connector is plugged into the socket of the rear plug-in quick access device, and then the operator holds the handle and pulls the pull rod 344, the pull rod 344 contracts the tension spring, and the pull rod 344 disengages the limit block 342 from the limit groove 3221. At this time, since the sliding seat is released from the limit, the telescopic spring quickly resets, and the telescopic spring raises the sliding seat through the lifting seat and the first guide block. At the same time, the lifting seat raises the limit lock head 321 vertically, and the limit lock head 321 is vertically inserted into the inner side of the frame of the door opening of the ring network cabinet, so that the warehouse door body 100 is fixed at the door opening of the ring network cabinet;

[0100] During the power connection and grid connection operation, the operator inserts the cable 600 into the ring main unit cabinet through the insertion hole 110, and inserts the plug at the end of the cable 600 into the socket at the lower part of the quick connector to realize the power connection and grid connection operation of the ring main unit;

[0101] When the cable 600 is energized, the signal sensor collects the current and voltage signals of the cable 600, and the signal sensor feeds the signal back to the electromagnetic lock. The locking rod at the end of the electromagnetic lock automatically extends and presses against the frame of the door opening of the ring main unit, so that the door body 100 can be fixed at the door opening of the ring main unit. When the cable 600 is energized, the door body 100 cannot be opened, thus improving the five-protection function.

[0102] At the same time, the energy storage lighting lamp is used to provide light for the warehouse door body 100, and the video surveillance camera performs video monitoring on the warehouse door body 100, and transmits the real-time video image to the mobile phone APP so that the background supervisor can know the actual situation.

[0103] In a specific embodiment, the method for using the ring main unit includes the following steps:

[0104] S1. First, place the door body 100 at the door opening of the ring main unit cabinet. Drive the limit lock 321 to rise vertically. The limit lock 321 is vertically inserted into the inner side of the frame of the door opening of the ring main unit cabinet to fix the door body 100 at the door opening of the ring main unit cabinet.

[0105] S2. The cable 600 is passed through the insertion hole 110 into the ring main unit, and the plug at the end of the cable 600 is inserted into the socket at the bottom of the quick connector. During the power connection and grid connection operation of the ring main unit, the signal sensor collects the current and voltage signals of the cable 600, and the electromagnetic lock senses the charged signal. The locking rod at the end of the electromagnetic lock automatically extends and presses against the frame of the door opening of the ring main unit. Even if the door body 100 is fixed at the door opening of the ring main unit, the door body 100 cannot be opened when it is energized.

[0106] It is not difficult to understand that the method of using the ring main unit in the second aspect embodiment of the present application and the ring main unit in the third aspect embodiment of the present application both have the technical effects of the ring main unit door for cooperating with the rear plug-in quick connector in the first aspect embodiment, and therefore will not be repeated.

[0107] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0108] The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "multiple" means two or more. It should be noted that the term "and / or" used in this article is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0109] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0110] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

Claims

1. A ring main unit door for use with a rear plug-in quick connector, characterized in that: include: A door body, a first latching assembly, and a second latching assembly; The door body is arranged on the ring main unit, and the door body is locked on the ring main unit by the first locking component and / or the second locking component; The first locking assembly is configured to lock the compartment door body when the ring main unit is powered on, and the second locking assembly is configured to lock the compartment door body when driven.

2. The ring main unit door for use with a rear-insertion quick connector according to claim 1, characterized in that: The first locking assembly includes an electromagnetic lock assembly and a sensor component. The sensor component is used to send a charged signal when the ring main unit is powered on. The electromagnetic lock assembly is configured to lock the compartment door body according to the charged signal of the sensor component.

3. The ring main unit door for use with a rear-insertion quick connector according to claim 2, characterized in that: The electromagnetic lock assembly includes an electromagnetic driving component and a locking rod, and the electromagnetic driving component is used to drive the locking rod to extend and retract.

4. The ring main unit door for use with a rear-insertion quick connector according to claim 1, characterized in that: The second locking assembly includes a box body, a lock head assembly, a first elastic component and a limiting component; The lock assembly is arranged on the box body and can be driven to move so that the lock assembly can lock or unlock the door body; The first elastic component is used to provide an elastic force acting on the lock assembly, so that the lock assembly can be maintained at or reset to a position that locks the door body; The limiting component is used to limit the lock head assembly when it moves to the unlocking position.

5. The ring main unit door for use with a rear-insertion quick connector according to claim 4, characterized in that: The lock assembly includes a limit lock and a mounting component, the limit lock is arranged on the mounting component, the mounting component is arranged on the box body and can be driven to move, a limit groove is formed on the mounting component, the limit component includes a device box and a limit block, the device box is arranged on the box body, and the limit block is arranged on the device box and can be driven to move, so that the limit block can limit the position of the mounting component by being snapped into the limit groove.

6. The ring main unit door for use with a rear-insertion quick connector according to claim 5, characterized in that: The limiting component includes a second elastic component and a pull rod. The second elastic component is used to provide an elastic force acting on the limiting block so that the limiting block can be maintained at or reset to a position where it is stuck in the limiting groove. The pull rod is connected to the limiting block and is used to drive the limiting block to move.

7. The ring main unit door for use with a rear-insertion quick connector according to claim 5, characterized in that: A first guide structure is provided between the device box and the limit block, and the first guide structure is used to guide the movement of the limit block; And / or a second guiding structure is formed on the installation component and / or the limiting block, and when the limiting lock head moves toward the unlocking position, the limiting block is locked into the limiting groove under the guidance of the second guiding structure.

8. The ring main unit door for use with a rear-insertion quick connector according to claim 5, characterized in that: The mounting component includes a first mounting seat, a second mounting seat and a movable member; One end surface of the first mounting seat is used to set the limit lock head, and the first elastic component acts on the other end surface opposite to the first mounting seat; The limiting groove is formed on the second mounting seat, one side surface of the second mounting seat is arranged on one side surface of the first mounting seat through the movable member, and the other side surface of the second mounting seat opposite to the first mounting seat is driven to move the first mounting seat; The movable member is movably arranged on the box body. A third guide structure is provided between the movable member and the box body. The third guide structure is used for guiding the movement of the first mounting seat.

9. A ring main unit, characterized in that: include: A ring main unit door for use with a rear-insertion quick connector as claimed in any one of claims 1 to 8.

10. A method for using the ring main unit according to claim 9, characterized in that: The following steps are involved: Closing the door body to the door of the ring main unit, and locking the door body to the ring main unit through the second locking assembly; Connecting the ring main unit to the power grid; The first locking assembly locks the door body on the ring main unit in response to a power-on signal of the ring main unit.

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