CN221669268U - A front-connection DC feeder device - Google Patents

Abstract

The utility model discloses a front wiring direct current feeder device, which comprises a front wiring device, wherein the front wiring device is provided with a wiring panel, the front wiring device is connected with a front wiring assembly, the front wiring assembly is provided with a wiring terminal, and the wiring terminal is connected with the wiring panel, and relates to the field of direct current power supply systems of power systems. The utility model has simple structure, can realize batch production and stock, and can effectively improve the production efficiency and reduce the cost by modularization screen assembly, and simultaneously, the utility model is convenient for wiring, equipment overhaul and maintenance.

Description

A front-connection DC feeder device

Technical Field

The utility model relates to the field of a direct current power supply system of an electric power system, in particular to a front-connection direct current feeder device.

Background Art

The prefabricated cabin substation is an integrated device consisting of a prefabricated cabin, secondary equipment cabinets, high-voltage cabinets, and cabin auxiliary facilities. In the factory, the prefabricated cabin is manufactured, assembled, wired, and debugged, and finally transported to the project site as a whole and installed on the installation foundation. The prefabricated cabin and its internal equipment are integrated by the manufacturer, realizing factory processing. This design can reduce the workload of secondary wiring, design, construction, and debugging on site, and simplify the inspection and maintenance work, thereby shortening the construction period and providing effective support for the rapid construction of the power grid. However, due to the limited space of the prefabricated cabin, the layout of the equipment in the cabin is slightly different from the traditional method. There is an aisle in the middle of the cabin, and the cabinets are distributed on both sides of the aisle. At this time, the front door of the cabinet faces the aisle, and the rear door is against the prefabricated cabin wall, which makes the rear door unable to be fully opened. This design brings challenges to the design and assembly of the DC feeder cabinet in the prefabricated cabin. In the traditional design, the operating equipment is located in front of the cabinet, while the wiring, equipment inspection and maintenance are carried out at the back. However, this method is not applicable to prefabricated cabin substations because the rear door cannot be opened for wiring, equipment inspection and maintenance. In order to solve this problem, it is necessary to optimize the design of prefabricated cabin substations.

For example, the Chinese patent with publication number CN105680345B discloses a front wiring cabinet, including a cabinet body, the cabinet body including a cabinet box and a cabinet frame for installing corresponding components arranged in the cabinet box, the cabinet frame is arranged in the center in the left and right directions of the cabinet box, and an optical fiber channel for arranging optical fibers and a cable channel for arranging cables are formed between the cabinet frame and the left and right panels of the cabinet box, respectively. The front wiring cabinet of this invention arranges the cabinet frame for installing corresponding equipment and components in the center in the left and right directions. The equipment and components are arranged in the center in accordance with the traditional aesthetic concept of "symmetrical beauty", which is more beautiful and also achieves the purpose of photoelectric separation. At the same time, for example, when the equipment is installed on the modular hole of the cabinet frame, the installation space is increased due to the space on the right side of the cabinet frame relative to the cabinet frame set to the right offset, which is conducive to the installation and removal of the front panel of the equipment. However, the structure of the device is too complicated and difficult to mass produce and stock.

Utility Model Content

In response to the problems described in the background technology, the utility model proposes a front-connection DC feeder device, which has a simple structure, can be mass-produced and stocked, and has modular panel assembly, which can effectively improve production efficiency and reduce costs, while also facilitating wiring, equipment inspection and maintenance.

To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a front wiring DC feeder device, including a front wiring device, the front wiring device is provided with a wiring panel, the front wiring device is connected to a front wiring assembly, the front wiring assembly is provided with a wiring terminal, and the wiring terminal is connected to the wiring panel.

Preferably, the front wiring device is provided with a bottom plate and a back plate mounting plate, a mounting chassis is provided in the middle position of the front wiring device, and the front wiring assembly is arranged inside the mounting chassis. The presence of the bottom plate, the back plate mounting plate and the mounting chassis helps to maintain the stability of the structure, while also providing additional protection and isolation to ensure that the equipment can operate normally under various environmental conditions.

Preferably, the front wiring device is provided with two side panels, which are connected to the output terminal mounting frame, and the output terminal mounting frame is connected to the output terminal. While maintaining the stability and strength of the overall structure, it also provides an installation position for the output terminal, making it easier to connect and disconnect the power supply device and manage the output current during actual use.

Preferably, the front wiring assembly is provided with an incoming copper busbar, one side of the incoming copper busbar is connected to a number of insulators, and the other side is connected to a number of leakage current sensors, and the leakage current sensors are connected to the pressure strips. The use of leakage current sensors and insulators helps to monitor current and insulation conditions, thereby improving the safety of the power system.

Preferably, the installation surface of the incoming copper busbar is arranged parallel to the wiring panel, and the insulator is arranged on the side of the incoming copper busbar close to the wiring terminal, ensuring a reasonable layout of the incoming copper busbar and the insulator, making it easier to maintain and operate, while keeping the wiring panel tidy.

Preferably, the wiring panel is provided with a marking frame and a circuit breaker operating port, and a light board is connected below the wiring panel, on which a number of indicator lights are provided. The marking frame, the circuit breaker operating port and the indicator lights all help the operator to easily identify and manage the connection, and provide visual feedback on the equipment status.

Preferably, the base plate is provided with a plurality of mounting holes and a plurality of base plate limiting protrusions, and such an arrangement is helpful for fixing and positioning the equipment components.

Preferably, a plurality of side panel limiting protrusions are provided on the side of the side panel near the mounting chassis, and the terminal mounting frame is provided with a mounting frame fixing end and a mounting frame connecting end, and the mounting frame connecting end is provided with a terminal mounting groove. The above-mentioned design helps to connect the output terminals more reasonably and optimizes the overall circuit design of the device.

Preferably, the front wiring device is connected to a screen cabinet, and the screen cabinet is provided with a front wiring device mounting frame, which connects the front wiring device to the screen cabinet, and cooperates with the front wiring device mounting frame to simplify the installation of the overall system.

Compared with the prior art, the utility model adopts a front wiring DC feeder device, including a front wiring device, the front wiring device is provided with a wiring panel, the front wiring device is connected to the front wiring assembly, the front wiring assembly is provided with a wiring terminal, and the wiring terminal is connected to the wiring panel. By setting the front wiring device, even if the rear door of the panel cabinet cannot be opened, the operator can still perform a series of operations such as equipment inspection and maintenance through the side path, further improving the efficiency and flexibility of the prefabricated cabin substation and ensuring the normal operation and reliability of the equipment. The beneficial effects of the utility model are as follows.

1. All components of the device of the utility model can be conveniently installed and disassembled in front of the screen cabinet, and the utility model can easily carry out front wiring and equipment inspection and maintenance.

2. The utility model device has a scientific and reasonable overall structural layout, all components are simple and easy to install, and has a good structural design.

3. The device of the utility model includes a complete branch line loop, and the structure is universal, which can realize batch production and stocking, and can effectively reduce costs.

4. Due to the universality of the structure, the device of the utility model is easy to realize modular screen assembly, which significantly improves the production efficiency of the utility model and presents a neat and beautiful layout inside the screen cabinet.

5. The device of the utility model fully meets the needs of prefabricated cabin-type substations and can perfectly adapt to the requirements of this field.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the utility model.

FIG. 2 is an exploded view of the present invention.

FIG. 3 is an exploded view of the light panel portion of the present invention.

FIG. 4 is a schematic diagram of the front wiring device of the present invention.

FIG5 is a partial schematic diagram of the leakage current sensor in the present invention.

FIG. 6 is a schematic diagram of the utility model installed in a screen cabinet.

Illustrations: front wiring device 1, front wiring assembly 2, leakage current sensor 3, pressure strip 4, screen cabinet 5, insulator 6, lamp board 7, output terminal mounting frame 8, output terminal 9, circuit breaker 10, wiring panel 1.1, mounting chassis 1.2, bottom plate 1.3, back plate mounting plate 1.4, marking frame 1.5, circuit breaker operation port 1.6, bottom plate limit protrusion 1.7, side plate 1.8, side plate limit protrusion 1.9, wiring terminal 2.1, incoming copper bus 2.2, front wiring device mounting frame 5.1, indicator light cover 7.1, light equalizing cover 7.2, control board 7.3, mounting frame fixed end 8.1, mounting frame connecting end 8.2, terminal mounting slot 8.3.

DETAILED DESCRIPTION

In order to more clearly reveal the purpose, technical solutions and advantages of the present disclosure, the following will describe the embodiments of the present disclosure in detail with reference to the accompanying drawings. The proportions and dimensions in the accompanying drawings do not limit the substantial technical solutions of the present utility model. The embodiments described in this detail are only examples and do not limit the scope of the present utility model.

In this embodiment, referring to FIG. 1 to FIG. 6 , the front wiring device 1 is provided with a wiring panel 1.1, and the front wiring device 1 is connected to the front wiring assembly 2; the front wiring assembly 2 is provided with a wiring terminal 2.1, and the wiring terminal 2.1 is connected to the wiring panel 1.1, the front wiring device 1 is provided with a bottom plate 1.3 and a back plate mounting plate 1.4, and a mounting chassis 1.2 is provided in the middle of the front wiring device 1, and the front wiring assembly 2 is arranged inside the mounting chassis 1.2. By providing the front wiring device 1, even if the rear door of the panel cabinet cannot be opened, the operator can still perform a series of operations such as equipment inspection and maintenance through the side, further improving the efficiency and flexibility of the prefabricated cabin substation and ensuring the normal operation and reliability of the equipment. This structure helps to simplify installation and maintenance.

As shown in FIG6 , in the front wiring assembly 2, a plurality of insulators 6 are connected to one side of the incoming copper bar 2.2, and a plurality of leakage current sensors 3 are connected to the other side, and the leakage current sensors 3 are connected to the pressure strip 4. Such a design can better monitor the current and insulation state, thereby improving the safety of the power system. In addition, the installation surface of the incoming copper bar 2.2 is parallel to the wiring panel 1.1, and the insulator 6 is located on the side of the incoming copper bar 2.2 close to the wiring terminal 2.1, so as to facilitate the wiring operation. The wiring panel 1.1 is provided with a marking frame 1.5 and a circuit breaker operation port 1.6 to mark the wiring and facilitate the operation of the circuit breaker. In addition, a light board 7 is connected below the wiring panel 1.1, and many indicator lights 7.1 are installed on the light board 7 to quickly understand the status of the device. On the bottom plate 1.3, a plurality of mounting holes 1.4 and bottom plate limit protrusions 1.7 are arranged, thereby providing a convenient device installation and positioning option. The front wiring device 1 is provided with two side panels 1.8, which are connected to the output terminal mounting frame 8, and the output terminal mounting frame 8 is connected to the output terminal 9. A plurality of side panel limit protrusions 1.9 are provided on one side of the side panel 1.8 near the mounting chassis 1.2, and the mounting frame connection end 8.2 is provided with a terminal mounting groove 8.3, providing a better fixing and installation effect. At the same time, the front wiring device 1 is connected to the screen cabinet 5, and the front wiring device mounting frame 5.1 is installed on the screen cabinet 5 to realize the organic combination of the device and the screen cabinet.

As shown in Fig. 1, Fig. 3 and Fig. 4, the front wiring device 1 is provided with a bottom plate 1.3 and a back plate mounting plate 1.4, and a mounting chassis 1.2 is provided in the middle position of the front wiring device 1. The front wiring assembly 2 is arranged inside the mounting chassis 1.2. The existence of the bottom plate 1.3, the back plate mounting plate 1.4 and the mounting chassis 1.2 helps to maintain the stability of the structure, and also provides additional protection and isolation to ensure that the equipment can operate normally under various environmental conditions. The bottom plate 1.3 is provided with a plurality of mounting holes 1.4 and a plurality of bottom plate limiting protrusions 1.7, and such a setting helps to fix and position the equipment components. The side plate 1.8 is provided with a plurality of side plate limiting protrusions 1.9 on the side close to the mounting chassis 1.2, and the terminal mounting frame 8 is provided with a mounting frame fixing end 8.1 and a mounting frame connecting end 8.2, and the mounting frame connecting end 8.2 is provided with a terminal mounting groove 8.3. The above-mentioned design helps to more reasonably connect the output terminal 9 and optimize the overall circuit design of the device.

As shown in FIG2 , the front wiring device 1 is provided with two side panels 1.8, the side panels 1.8 are connected to the output terminal mounting frame 8, and the output terminal mounting frame 8 is connected to the output terminal 9. While maintaining the stability and strength of the overall structure, it also provides an installation position for the output terminal 9, making it easier to connect and disconnect the power supply device and manage the output current during actual use.

In one embodiment of the utility model, the front wiring assembly 2 is provided with an incoming copper bar 2.2, one side of the incoming copper bar 2.2 is connected to a plurality of insulators 6, and the other side is connected to a plurality of leakage current sensors 3, and the leakage current sensors 3 are connected to the pressure strip 4. The use of the leakage current sensors 3 and the insulators 6 helps to monitor the current and insulation conditions, thereby improving the safety of the power system. In this embodiment, as shown in FIG5 , a plurality of leakage current sensors 3 are arranged in a front-to-back staggered manner.

In this embodiment, the installation surface of the incoming copper busbar 2.2 is arranged parallel to the wiring panel 1.1, and the insulator 6 is arranged on the side of the incoming copper busbar 2.2 close to the wiring terminal 2.1, ensuring the reasonable layout of the incoming copper busbar 2.2 and the insulator 6, making it easier to maintain and operate, while keeping the wiring panel 1.1 tidy.

The wiring panel 1.1 of the utility model is provided with a marking frame 1.5 and a circuit breaker operating port 1.6. A light board 7 is connected below the wiring panel 1.1. The light board 7 is provided with a plurality of indicator lights 7.1. The marking frame 1.5, the circuit breaker operating port 1.6 and the indicator lights 7.1 all help the operator to easily identify and manage the connection, and provide visual feedback of the equipment status.

As shown in FIG6 , the front wiring device 1 of the present invention is connected to the screen cabinet 5, and the screen cabinet 5 is provided with a front wiring device mounting frame 5.1. The front wiring device 1 is connected to the screen cabinet 5, and the front wiring device 1 cooperates with the front wiring device mounting frame 5.1, which simplifies the installation of the overall system.

In this embodiment, the middle of the prefabricated cabin is an aisle, and the screen cabinets 5 are distributed on both sides of the aisle. The front door of the screen cabinet 5 faces the aisle, and the rear door is against the prefabricated cabin wall, so there is not enough space to open the rear door of the screen cabinet 5.

The device assembly process of the utility model is as follows: the indicator light cover 7.1 and the light-distributing cover 7.2 are installed on the light board 7, and then the control board 7.3 is tightened and installed with screws to assemble the light board 7. The circuit breaker 10 is at the terminal 2.1 of the utility model. In this embodiment, the circuit breaker 10 is a miniature circuit breaker, which is installed on a 35mm standard rail installed horizontally in the chassis 1.2, and the output terminal 9 is installed on the 35mm standard rail installed vertically on the left and right sides of the chassis; the four insulators 6 are fixed inside the chassis with screws, and then the two incoming copper bars 2.2 are installed on the insulators 6 with screws. As shown in the figure, the leakage current sensor 3 is sleeved on the screw inside the chassis through the mounting hole, and then the pressure strip 4 is pressed on the leakage current sensor, and then the pressure strip is fixed to the chassis with screws. In this way, the main assembly of the device is assembled.

The marking frame 1.5 is installed on the wiring panel 1.1, and the wiring panel 1.1 is fixed to the main assembly of the device by screws. The assembly of the lamp panel 7 is fixed to the main assembly of the device by screws, and finally the cables are connected to form the front wiring DC feeder device. Figure 6 is a rendering of the front wiring DC feeder device after being installed in the panel cabinet.

The disassembly process of the device during use of the utility model is as follows.

First, the cables connected to the front wiring DC feeder unit need to be removed. These cables are usually connected to other equipment or power supplies, so they must be carefully disconnected. This involves tightening the cable connection nuts or plugs and gradually untangling the cables from the unit. In contrast to the assembly process, the assembly of the light board 7 needs to be disassembled. This usually involves removing the screws mounted on the control board 7.3 and then carefully separating the components of the light board 7. The circuit breaker 10 needs to be removed from the 35mm standard rail. Usually, this involves loosening the fixing screws mounted on the rail so that the circuit breaker 10 can slide out easily. The insulator 6 and the incoming copper bus 2.2 need to be removed from the inside of the chassis. This may require loosening the screws that fix them and then carefully removing them. The leakage current sensor 3 and the pressure strip 4 need to be removed from the inside of the chassis. First, loosen the fixing screws on the pressure strip and then carefully remove the pressure strip and sensor from the screw. The wiring panel 1.1 and the marking frame 1.5 need to be removed from the main assembly of the device. During this process, it is necessary to loosen the screws that fix the wiring panel and the marking frame, and then remove them from the assembly. Finally, the light board 7 on the assembly is removed with screws. Contrary to the assembly process, the screws that fix the light board are first loosened, and then the light board is carefully separated and removed. Through the above steps, the components in the utility model can be gradually disassembled. This process is the same as the assembly process, and it is necessary to be careful and ensure that no components of the device are damaged.

The front-connected DC feeder device is easy to install, can be mass-produced and stocked, and has modular panels, which can effectively improve production efficiency and reduce costs. Wiring, equipment inspection and maintenance can all be completed in front of the panel cabinet, which can fully meet the needs of prefabricated cabin substations.

The present invention is not limited to the above embodiments. Any changes in shape or material using the structural design provided by the present invention are considered as variations of the present invention and are also protected by the present invention. The use of terms is only for describing specific embodiments and is not limited to the examples of the present application. All changes based on the structural design of the present invention shall also be included within the scope of protection.

Claims (9)

1. A front wiring DC feeder device, characterized by comprising a front wiring device (1), The front wiring device (1) is provided with a wiring panel (1.1), and the front wiring device (1) is connected to the front wiring assembly (2); The front wiring assembly (2) is provided with a wiring terminal (2.1), and the wiring terminal (2.1) is connected to the wiring panel (1.1). 2. A front wiring DC feeder device according to claim 1, characterized in that the front wiring device (1) is provided with a base plate (1.3) and a backplane mounting plate (1.4), a mounting chassis (1.2) is provided in the middle position of the front wiring device (1), and the front wiring assembly (2) is arranged inside the mounting chassis (1.2). 3. A front wiring DC feeder device according to claim 1 or 2, characterized in that the front wiring device (1) is provided with two side panels (1.8), the side panels (1.8) are connected to the output terminal mounting frame (8), and the output terminal mounting frame (8) is connected to the output terminal (9). 4. A front-connection DC feeder device according to claim 1, characterized in that the front-connection assembly (2) is provided with an incoming copper busbar (2.2), one side of the incoming copper busbar (2.2) is connected to a plurality of insulators (6), and the other side is connected to a plurality of leakage current sensors (3), and the leakage current sensor (3) is connected to a pressure strip (4). 5. A front-connected DC feeder device according to claim 4, characterized in that the installation surface of the incoming copper busbar (2.2) is arranged parallel to the wiring panel (1.1), and the insulator (6) is arranged on a side of the incoming copper busbar (2.2) close to the wiring terminal (2.1). 6. A front-connected DC feeder device according to claim 1, characterized in that the connection panel (1.1) is provided with a marking frame (1.5) and a circuit breaker operation port (1.6), and a light board (7) is connected below the connection panel (1.1), and a plurality of indicator lights (7.1) are provided on the light board (7). 7. A front-connection DC feeder device according to claim 2, characterized in that the bottom plate (1.3) is provided with a plurality of mounting holes and a plurality of bottom plate limiting protrusions (1.7). 8. A front-connected DC feeder device according to claim 3, characterized in that the side plate (1.8) is provided with a plurality of side plate limiting protrusions (1.9) on the side close to the mounting chassis (1.2), the terminal mounting frame (8) is provided with a mounting frame fixing end (8.1) and a mounting frame connecting end (8.2), and the mounting frame connecting end (8.2) is provided with a terminal mounting groove (8.3). 9. A front wiring DC feeder device according to claim 1 or 2, characterized in that the front wiring device (1) is connected to a panel cabinet (5), and the panel cabinet (5) is provided with a front wiring device mounting frame (5.1).