Multi-cavity LCU cabinet

Abstract

The utility model discloses a multi-cavity LCU cabinet. The multi-cavity LCU cabinet comprises a cabinet main body, the interior of the cabinet is divided into a left sub-cavity and a right sub-cavity through a vertical partition plate, the vertical partition plate is a hollow partition plate with an interlayer, a hot runner and a wiring channel are arranged in the interlayer, a heat dissipation air window is formed in the position, corresponding to the top and / or the bottom of the vertical partition plate, of a cabinet body of the cabinet, and a negative pressure fan is formed on the inner side of the heat dissipation air window. Assembling bases are formed on the two side faces of the vertical partition plate and the inner side face of the cabinet to serve as fixing parts, the positions of the component assembling structures are fixed through the assembling bases at different positions of the cabinet in the height direction of the vertical partition plate, and therefore the left sub-cavity and the right sub-cavity are divided into a plurality of structure function cavities through the component assembling structures. The system is excellent in function modularization, space utilization rate, heat dissipation performance, operation and maintenance convenience, reliability, standardization compatibility and the like, and provides powerful support for stable operation and efficient management of an electric power system.

Description

Technical Field

[0001] The utility model relates to the communication cabinet technology in the field of communication equipment, and particularly relates to a multi-chamber LCU cabinet. Background Art

[0002] The LCU cabinet, that is, the local control unit cabinet, is an important part used for controlling and protecting electrical equipment in the power system. It integrates various functions such as control, protection, measurement, and communication. By receiving instructions from the superior system (such as a monitoring system, a dispatching center, etc.), it remotely or locally controls the electrical equipment in places such as power plants and substations.

[0003] The design of the LCU cabinet generally follows the principles of high reliability, high availability, easy maintainability, and scalability to ensure the stable operation and efficient management of the power system. At the same time, since the LCU cabinet needs to maintain its functions and performance, it is usually equipped with various control modules and devices such as protection relays, measuring instruments, and communication interfaces. If these functional modules / devices can be scientifically and reasonably partitioned and arranged in the LCU cabinet according to different functional requirements and operating environments, it will greatly improve the overall performance and maintenance efficiency of the cabinet, and at the same time ensure the accurate transmission of signals, the stable operation of equipment, and the overall heat dissipation efficiency. Content of the Utility Model

[0004] The technical problem solved by the utility model is to provide a multi-chamber LCU cabinet, which is designed aiming at the deficiencies of the traditional LCU cabinet in terms of functional modularization, space utilization rate, and operation and maintenance convenience, aiming to solve the deficiencies of the existing LCU cabinet in terms of adaptability and flexibility, and solve the heat dissipation defect problem of the LCU cabinet.

[0005] The technical problem solved by the utility model is realized by adopting the following technical solutions:

[0006] A multi-chamber LCU cabinet includes a cabinet body. The front of the cabinet cavity of the cabinet body is an open surface, and the open surface is closed by a cabinet door.

[0007] The inside of the cabinet is separated into left and right two sub-chambers by a vertical partition. The vertical partition is a hollow partition with a sandwich layer, and a hot runner and a wiring channel are arranged in the sandwich layer. The cabinet body is formed with heat dissipation air windows at the top and / or bottom corresponding to the vertical partition, and a negative pressure fan is formed inside the heat dissipation air window position. The negative pressure fan faces the hot runner inside.

[0008] The cabinet is formed with matching fixing parts on both side surfaces of the vertical partition board and the inner side surface of the cabinet. The fixing parts are assembly seats arranged at intervals along the height direction of the vertical partition board. The cabinet fixes the position of the component assembly structure through the assembly seats at different positions in the height direction of the vertical partition board, so as to separate a plurality of structural and functional cavities through the component assembly structure in the left and right sub-cavities.

[0009] As a further limitation, both the cabinet body and the vertical partition board are formed by cold-rolled steel plates or stainless steel plates that have been surface spray-painted.

[0010] As a further limitation, the cabinet body is formed with heat dissipation air windows on both side cabinet walls and / or the cabinet back panel.

[0011] As a further limitation, a control host with a touch operation panel is formed on the front surface of the cabinet door, and a sensor unit for monitoring the internal operating environment of the cabinet is arranged in the cabinet cavity of the cabinet body. The sensor unit is communicatively connected to the control host and can upload data to the remote monitoring platform through the control host.

[0012] As a further limitation, the hollow partition board is a detachable assembly structure, including side plates and a positioning frame arranged on both sides. The side plates are hollow plates, and the fixing parts are formed on the outer side surface of the plate body, and a horizontally arranged T-shaped slot is formed on the inner side surface. The positioning frame has T-shaped insertion parts on both sides that match the T-shaped slots. The quick assembly and disassembly of the hollow partition board are realized through the matching insertion of the T-shaped insertion parts and the T-shaped slots;

[0013] The hollow partition board adjusts the sandwich spacing by matching positioning frames of different lengths.

[0014] As a further limitation, the component assembly structure is an assembly rack or an assembly back panel; both the assembly rack and the assembly back panel are designed as standardized modules, which can flexibly adapt to different equipment sizes and installation requirements;

[0015] The assembly rack is designed in a multi-layered manner, and each layer is equipped with a matching fixing rack and slide rails, which are convenient for quickly installing and disassembling various components such as control modules, protection relays, and measuring instruments, while ensuring the stable connection and reasonable spacing between components and optimizing the heat dissipation effect;

[0016] A heat dissipation gap is reserved between the assembly back panel and the cabinet back panel after assembly.

[0017] As a further limitation, among the multiple structural and functional cavities, there is a relay cavity; the relay cavity uses the assembly back panel as the component assembly structure, and a buffer bottom lining is formed at the assembly position corresponding to the relay on the assembly back panel.

[0018] As a further limitation, an independent power supply component is provided inside the cabinet main body, and the independent power supply component adopts a redundant power supply design to ensure that the cabinet can still operate normally in case of a single power supply failure.

[0019] Beneficial effects: The multi-chamber LCU cabinet of the present utility model adopts a modular design concept, which can divide the internal space into two sub-chambers, left and right, by means of vertical partition boards, and further functional separation can be carried out in the two sub-chambers by using component assembly structures (such as assembly racks or assembly backplanes). Each sub-chamber can be flexibly configured with different component assembly structures according to actual needs, thus achieving a high degree of modularity and scalability, and ensuring that heat-generating components such as high-power control modules and processors can dissipate heat in time, avoiding performance degradation or equipment damage caused by overheating. This design not only facilitates function upgrade or expansion according to the development needs of the power system in the later stage, but also greatly simplifies the maintenance and repair work, improving the operation and maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present utility model.

[0021] Wherein: 1, cabinet door; 2, hinge; 3, control host; 4, lock body handle; 5, assembly backplane; 6, assembly column rod; 7, slide rail; 8, fixing frame; 9, assembly rack; 10, bottom lining bracket; 11, interlayer; 12, positioning frame; 13, side plate; 14, negative pressure fan; 15, bottom surface heat dissipation air window; 16, support foot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0023] Refer to Figure 1 A preferred embodiment of a multi-chamber LCU cabinet. In this embodiment, the cabinet includes a cabinet main body. A top bracket and a bottom lining bracket 10 are respectively provided at the top and bottom of the cabinet main body. The top bracket and the bottom lining bracket are used to ensure the structural stability and strength of the overall contour of the cabinet main body. The middle part of the top bracket and the bottom lining bracket 10 is a hollow structure and is closed by a shell plate on the outside. In addition, U-shaped steel structure support feet 16 are symmetrically provided on both sides of the shell plate at the support part on the lower surface of the bottom lining bracket 10 as the fixing structure for supporting the cabinet; the front of the cabinet cavity is an open surface and is closed by a cabinet door 1 on the open surface. The cabinet door 1 is hinged to the door frame body by a hinge 2, and the cabinet door 1 is locked inside the door body by a linkage rod lock. The linkage rod lock is opened and locked by a lock body handle 4 provided on the cabinet door 1.

[0024] In the cabinet cavity of the cabinet body, there is a vertical partition board, which divides the internal volume space of the cabinet into two left and right sub-cavities through the vertical partition board. In this embodiment, the vertical partition board is an assembled structure, including two side plates 13 and a positioning frame 12. The side plates 13 are hollow plates, and assembly seats are formed on the outer side surface of the plate body and the inner side surface of the cabinet side plate at intervals in the height direction. The assembly seats on the side plates 13 and the cabinet side plate are arranged opposite to each other, and can be used to fix the positions of the component assembly structures in the two left and right sub-cavities; and a horizontally arranged T-shaped slot is designed on the inner side surface of the side plate 13, which allows for a tight fit with the T-shaped insertion part on the positioning frame 12 to realize the insertion and fixation of the positioning frame 12 between the two side plates 13; the positioning frame 12 in the inserted state is perpendicular to the side plate 13, and the positioning frame 12 assembled through the combination of the T-shaped insertion part / T-shaped slot can separate a sandwich layer 11 between the two side plates 13. A hot runner and a wiring channel are reserved in the sandwich layer 11 to meet the heat dissipation and wiring requirements in the cabinet.

[0025] In this embodiment, the cabinet body and the vertical partition board are formed by cold-rolled steel plates or stainless steel plates that have been surface spray-painted, which not only improves the overall corrosion resistance and aesthetics of the cabinet, but also ensures the strength and durability of the structure.

[0026] The cabinet body is respectively provided with heat dissipation structures at the top and bottom positions corresponding to the vertical partition board. Taking the bottom heat dissipation structure of the vertical partition board as an example, it includes a bottom heat dissipation air window 15 provided on the bottom shell plate of the cabinet body. A negative pressure fan 14 corresponding to the position of the heat dissipation air window 15 is formed on the bottom lining bracket inside the bottom heat dissipation air window 15. The negative pressure fan 14 faces the sandwich layer 11 of the vertical partition board. When the negative pressure fan 14 is started, outside cold air is inhaled through the bottom heat dissipation air window 15 to form an upward airflow. This airflow enters the sandwich layer 11 and flows through the left and right sub-cavity areas from both sides through the hollow holes on the sandwich layer 11, effectively taking away the heat generated when the components work. And heat dissipation air windows are formed on both side cabinet walls of the cabinet body for this airflow to finally discharge outside the cabinet, thereby realizing efficient heat dissipation inside the cabinet. This design not only improves the heat dissipation efficiency, but also optimizes the air circulation inside the cabinet, ensuring the stable operation of each component in a suitable temperature environment.

[0027] In order to ensure the overall structural stability of the vertical partition board after forming, there are at least three positioning frames 12, which are respectively arranged at the upper, middle and lower positions of the vertical partition board; at the same time, the main part of the positioning frame 12 is a frame bracket with a middle buckle hole to cooperate with the structures of the hot runner and the wiring channel.

[0028] In different embodiments, the positioning frame 12 can have different sizes to facilitate adjusting the distance of the sandwich layer 11 inside the vertical partition board by replacing the positioning frame 12 with different sizes at the T-shaped insertion part position of the side plate 13.

[0029] In another embodiment, in addition to the hot runner, heat sinks or heat sink fins can be added to the interlayer 11 according to actual needs to increase the heat conduction area and accelerate heat dissipation. At the same time, the cabinet body is formed with heat dissipation louvers on both sides of the cabinet side walls and the cabinet back panel. These louvers work together with the negative pressure fan 14 to form effective air convection, discharge the heat inside the cabinet in time, and ensure stable operation of the equipment.

[0030] In this embodiment, the outer side surface of the side panel 13 and the inner side surface of the cabinet side panel are relatively provided with an assembly seat as a pedestal structure protruding toward one side of the sub-cavity, a card slot is provided on the pedestal, and the corresponding component assembly structure has a protrusion matching the card slot, and the component assembly structure completes the assembly of the component assembly structure by embedding the protrusion into the card slot. The component assembly structure is a combination of an assembly frame 9 and an assembly back plate 5, which is used to install equipment modules or functional components in the left and right sub-cavities. The positions of the assembly frame 9 and the assembly back plate 5 in the left and right sub-cavities are flexible and can be freely adjusted according to the actual needs of different control modules and components.

[0031] The assembly rack 9 and the assembly back plate 5 are both designed with standardized modules. This modular design allows the number of the assembly rack 9 and the assembly back plate 5 to be increased or decreased as needed to adapt to different assembly scales, and can easily adapt to various equipment sizes and installation requirements, and also allows components of different equipment sizes and installation requirements to be flexibly adapted and quickly installed. Specifically,

[0032] The assembly rack 9 is designed as a frame support structure with different heights, which includes a plurality of drawable fixed racks 8, and the fixed racks 8 are provided with equipment module assembly slots, through which the equipment modules can be firmly assembled on the assembly rack 9, and the two sides of the fixed racks 8 are formed into one with the frame body of the assembly rack 9 through the slide rails 7, and can be horizontally slid and pulled inside the frame body, so as to facilitate the operation of the equipment modules assembled on the assembly rack 9. The assembly rack 9 is used to facilitate users to quickly install and disassemble various control modules, protection relays, measuring instruments and other equipment or module units.

[0033] The assembly backplane 5 can provide a variety of interface layouts through the assembly columns 6 set on its front, which is convenient for installing components of different specifications and types, such as circuit boards, relays and other functional components; it supports direct mounting of board-type devices such as communication interface modules and power modules, which can simplify the wiring process and improve the overall neatness. The assembled assembly backplane 5 has a heat dissipation gap reserved between the back side and the cabinet backplane to ensure that the heat generated by the components assembled on the surface of the assembly backplane 5 during operation can be dissipated in time.

[0034] When the assembly backplane 5 is used for assembling relays, multiple corresponding relays should be assembled centrally to obtain an independent relay cavity. The design of the relay cavity not only facilitates unified management and maintenance, but also reduces electromagnetic interference through its independent space, improving the stability and reliability of the entire system. The assembly backplane 5 in the relay cavity, as a component assembly structure, has a buffer bottom lining and a limit card slot formed on its surface corresponding to the assembly positions of the relays, ensuring that the relays can be firmly installed without shaking and can effectively absorb vibrations, extending the service life of the relays.

[0035] In addition, standard connector interfaces and cable routing grooves are reserved on both the assembly rack 9 and the assembly backplane 5, facilitating the electrical connection and signal transmission between components.

[0036] To improve the intelligence level of the cabinet, in this embodiment, a control host 3 with a touch operation panel is provided on the front of the cabinet door. The control host 3 can communicate with the functional modules, components, instruments, etc. assembled in the cabinet; the control host 3 not only has local control functions, but also establishes a connection with the sensor unit inside the cabinet through the built-in communication module to monitor the operating environment inside the cabinet in real time, including key parameters such as temperature, humidity, and voltage. Once an abnormal situation is detected, the control host will immediately issue an alarm and upload relevant data to the remote monitoring platform through the network to achieve remote monitoring and management.

[0037] In addition, the multi-cavity LCU cabinet in this embodiment is also equipped with an independent power supply component, adopting a redundant power supply design. This design ensures that the cabinet can still operate normally in case of a single power supply failure, greatly improving the reliability and stability of the system. At the same time, the independent power supply component also has overload protection and short-circuit protection functions, further ensuring the safe operation of the equipment.

[0038] In summary, the multi-cavity LCU cabinet of this embodiment has been significantly improved in terms of functional modularization, space utilization, operation and maintenance convenience, and heat dissipation performance. Its unique modular design concept and flexible assembly method enable the cabinet to adapt to various complex application scenarios and changing requirements; while the efficient heat dissipation system and intelligent monitoring and management functions ensure the long-term stable operation and efficient operation and maintenance of the equipment.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-chamber LCU cabinet, characterized in that, It includes a cabinet body. The front of the cabinet cavity of the cabinet body is an open surface, and the open surface is closed by a cabinet door. Inside the cabinet, the left and right sub-cavities are separated by a vertical partition. The vertical partition is a hollow partition with a sandwich layer. A hot runner and a wire routing channel are arranged in the sandwich layer. Heat dissipation air windows are formed at the top and / or bottom of the cabinet body corresponding to the vertical partition, and a negative pressure fan is formed inside the heat dissipation air window. The negative pressure fan faces the hot runner inside. Matching fixing parts are formed on both side surfaces of the vertical partition and the inner side surface of the cabinet. The fixing parts are assembly seats arranged at intervals along the height direction of the vertical partition. The cabinet fixes the position of the component assembly structure at different positions in the height direction of the vertical partition, so as to separate multiple structural function cavities through the component assembly structure in the left and right sub-cavities.

2. The multi-chamber LCU cabinet according to claim 1, wherein, The cabinet body and the vertical partition are both formed by cold-rolled steel plates or stainless steel plates that have been surface sprayed.

3. The multi-chamber LCU cabinet according to claim 1, characterized in that, Heat dissipation air windows are formed on both side cabinet walls and / or the cabinet back panel of the cabinet body.

4. The multi-chamber LCU cabinet according to claim 1, characterized in that, A control host with a touch operation panel is formed on the front of the cabinet door. A sensor unit for monitoring the internal operating environment of the cabinet is arranged in the cabinet cavity of the cabinet body. The sensor unit is communicatively connected to the control host and can upload data to a remote monitoring platform through the control host.

5. The multi-chamber LCU cabinet according to claim 1, characterized in that, The hollow partition is a detachable assembly structure, including side plates and a positioning frame arranged on both sides. The side plates are hollow plates, and the fixing parts are formed on the outer side surface of the plate body. A horizontally arranged T-shaped slot is formed on the inner side surface. The positioning frame has T-shaped insertion parts on both sides that match the T-shaped slots. The quick assembly and disassembly of the hollow partition are realized through the matching insertion of the T-shaped insertion parts and the T-shaped slots.

6. The multi-chamber LCU cabinet according to claim 5, characterized in that, The spacing of the sandwich layer of the hollow partition is adjusted by matching positioning frames of different lengths.

7. The multi-chamber LCU cabinet according to claim 1, wherein, The component assembly structure is an assembly rack or an assembly back panel; both the assembly rack and the assembly back panel are designed as standardized modules and can flexibly adapt to different equipment sizes and installation requirements.

8. The multi-chamber LCU cabinet according to claim 7, wherein, The assembly rack is designed in a multi-layer style, and each layer is equipped with a matching fixing rack and a slide rail. A heat dissipation gap is reserved between the assembly back panel and the cabinet back panel after assembly.

9. The multi-chamber LCU cabinet according to claim 1, wherein, Among the multiple structural function cavities, there is a relay cavity; the relay cavity uses the assembly back panel as the component assembly structure, and a buffer bottom lining is formed at the assembly position corresponding to the relay on the assembly back panel.

10. The multi-chamber LCU cabinet according to claim 1, characterized in that, An independent power supply component is arranged inside the cabinet body, and the independent power supply component adopts a redundant power supply design.

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