Pre-maintenance feed cabinet of prefabricated cabin screen

Abstract

The utility model aims to provide a prefabricated cabin screen front maintenance feed cabinet which comprises a built-in rack assembly and a cabinet frame, the front side of the cabinet frame is provided with a cabinet front door and a baffle plate, and the left and right sides of the cabinet frame are provided with longitudinal and transverse beams. The built-in rack assembly is arranged on the rear half side of the interior of the cabinet frame through the longitudinal and transverse beams. The DC power supply is applied to the technical field of DC power supplies.

Description

Technical Field

[0001] This utility model relates to the technical field of DC power supplies, and in particular to a prefabricated cabin front maintenance power supply cabinet. Background Technology

[0002] A control cabinet is a type of enclosure in which switching equipment, measuring instruments, protective electrical appliances, and auxiliary equipment are assembled in a closed or semi-closed metal cabinet or panel according to electrical wiring requirements. Its layout meets the requirements for normal operation of the power system, facilitates maintenance, and does not endanger personnel or surrounding equipment. In the field of server racks, with the increasing miniaturization and integration of various electronic components, the number of components inside server racks is increasing, and their distribution is becoming denser. Prefabricated compartments have limited space, requiring racks to be installed side-by-side against a wall, making it impossible to open the side and rear doors after commissioning. For future maintenance, all operable and maintenance equipment must be accessible from the front of the panel. Existing products all use movable doors or rotating doors in the design of prefabricated compartment racks. Movable door solutions require all operable equipment to be on the same vertical plane, resulting in a significant reduction in rack capacity. For example, Chinese patent CN214100291U discloses a rotating frame rack for prefabricated compartments, which allows internal terminals and cables to rotate out along with the equipment and the rotating frame. However, the revolving door solution results in a complex cabinet structure. During maintenance, the entire cabinet needs to be rotated out, increasing the risk of electric shock. Furthermore, sufficiently long cables are required for rotation, leading to cable waste. Therefore, it is necessary to provide a prefabricated prefabricated panel front-panel maintenance power supply cabinet with a simple structure, minimal cable usage, low cost, high safety factor, and ease of maintenance, while also increasing the user's operational space. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a prefabricated cabin front maintenance power supply cabinet with simple structure, less cable usage, low cost, high safety factor, easy maintenance, and increased user operating space.

[0004] The technical solution adopted by this utility model is as follows: This utility model includes an internal rack assembly and a cabinet frame. The front side of the cabinet frame is provided with a cabinet front door and a baffle. The left and right sides of the cabinet frame are provided with longitudinal and transverse beams. The internal rack assembly is set inside the rear half of the cabinet frame through the longitudinal and transverse beams.

[0005] As described above, this application adopts an integrated recessed panel structure, increasing the usable space from the cabinet panel to both sides of the front door. This allows electrical components to be arranged on the left and right sides of the cabinet and on the panel, increasing the cabinet's capacity. Simultaneously, placing frequently used electrical components at the front improves ease of use and maintenance. For the movable panel front maintenance structure, the feedout terminals, previously mounted on the same vertical plane, are moved to the sides for vertical mounting, increasing the cabinet's capacity and user-accessible space, facilitating maintenance. Compared to a rotating door design, this structure is simpler, uses fewer cables, is less expensive, reduces the risk of electric shock, significantly lowers the operational difficulty for maintenance personnel, and simplifies the maintenance process.

[0006] In a preferred embodiment, a feedout terminal is provided between the baffle and the built-in rack assembly. The built-in rack assembly includes a horizontal cable slot, a vertical cable slot, a feedout switch, and a current transformer. The inner cable of the feedout terminal enters the horizontal cable slot through the vertical cable slot, and then passes through the current transformer to connect with the feedout switch.

[0007] In a preferred embodiment, the built-in rack assembly includes a U-shaped column, an upper movable panel, a circuit breaker panel, an indicator light panel, a current transformer panel, a lower movable panel, a connector, a current transformer mounting plate, and a circuit breaker mounting plate. The U-shaped column is connected to the other side of the connector. The front bent edge of the U-shaped column has a square hole, which connects to the upper movable panel, the circuit breaker panel, the indicator light panel, the current transformer panel, and the lower movable panel. The rear bent edge of the U-shaped column has a round hole rivet nut, which is used to fix the current transformer mounting plate and the circuit breaker mounting plate from the front. The current transformer is horizontally inclined on the front of the current transformer mounting plate, and a horizontal groove is provided on the back of the current transformer mounting plate. The connector has a mounting hole on the back, which is used to install the vertical groove. Hinges are provided on the hinge side of the upper and lower movable panels, and handle locks are provided on the non-hinge side of the upper and lower movable panels.

[0008] In a preferred embodiment, the horizontal spacing of the baffles is greater than the width of each panel in the built-in rack assembly.

[0009] A preferred embodiment is that the bottom of the cabinet frame is provided with a base plate, which is a detachable structure, and external cables are connected to the feedout terminals through the base plate.

[0010] In a preferred embodiment, the round hole of the round hole rivet nut is aligned vertically with the center of the square hole.

[0011] A preferred embodiment is that an independently detachable circuit breaker panel, indicator light panel, and current transformer panel are provided between the upper movable panel and the lower movable panel.

[0012] In a preferred embodiment, the width of the connector is greater than the width of the corresponding groove.

[0013] In a preferred embodiment, the horizontal spacing of the baffles is greater than the panel width of the built-in rack assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front door opening of this utility model.

[0015] Figure 2 This is a front view of the built-in rack assembly of this utility model.

[0016] Figure 3 This is a front axonometric drawing of the built-in frame assembly of this utility model;

[0017] Figure 4 This is a rear isometric view of the built-in frame assembly of this utility model. Detailed Implementation

[0018] like Figures 1 to 4 As shown, in this embodiment, the present invention includes a built-in rack assembly 3 and a cabinet frame 4. A front door 1 and a baffle 2 are provided on the front side of the cabinet frame 4. Longitudinal and transverse beams 5 are provided on the left and right sides of the cabinet frame 4. The built-in rack assembly 3 is located on the rear half of the cabinet frame 4 via the longitudinal and transverse beams 5. The overall recessed panel structure increases the usable space from the cabinet panel to both sides of the front door 1, allowing electrical components to be arranged on the left and right sides of the cabinet and on the panel, increasing the cabinet's capacity. Simultaneously, placing frequently used electrical components at the front improves ease of use and maintenance, facilitates wiring by on-site personnel, and does not hinder the disassembly of equipment on the rack.

[0019] like Figures 1 to 4 As shown, in this embodiment, a feedout terminal 9 is provided between the baffle 2 and the built-in rack assembly 3. The built-in rack assembly 3 includes a horizontal cable groove 6, a vertical cable groove 7, a feedout switch 8, and a current transformer 10. The inner cable of the feedout terminal 9 enters the horizontal cable groove 6 through the vertical cable groove 7, and then passes through the current transformer 10 to connect with the feedout switch 8.

[0020] The outer side of the feedout terminal 9 is used for on-site wiring by operators. When operators open the front door 1 of the cabinet, the equipment of the built-in rack assembly 3 can be wired or maintained. The built-in rack assembly 3 is set on the rear half of the cabinet frame 4 through the longitudinal and transverse beams 5. It adopts an overall recessed panel structure, which increases the usable space from the cabinet panel to both sides of the front door, so that electrical components can be arranged on the left and right sides of the cabinet and the panel, increasing the cabinet capacity. At the same time, placing frequently operated electrical components at the front is beneficial to improving the convenience of use and maintenance. For the front maintenance structure with movable panel, the feedout terminal 9, which is installed on the same vertical plane, is moved to the sides for vertical mounting, increasing the cabinet capacity and the user's operating space, which is convenient for maintenance.

[0021] like Figures 1 to 4 As shown, in this embodiment, the built-in rack assembly 3 includes a U-shaped column 308, an upper movable panel 301, a circuit breaker panel 302, an indicator light panel 303, a current transformer panel 304, a lower movable panel 305, a connector 306, a current transformer mounting plate 307, and a circuit breaker mounting plate 309. The U-shaped column 308 is connected to the other side of the connector 306. The front bent edge of the U-shaped column 308 is provided with a square hole, which is connected to the upper movable panel 301, the circuit breaker panel 302, the indicator light panel 303, the current transformer panel 304, and the lower movable panel 305. The rear side of the U-shaped column 308... The bent edge is provided with a round hole rivet nut, which is used to fix the current transformer mounting plate 307 and the circuit breaker mounting plate 309 from the front. The current transformer 10 is horizontally inclined on the front of the current transformer mounting plate 307, and the horizontal groove 6 is provided on the back of the current transformer mounting plate 307. The mounting hole is provided on the back of the connector 306, and the mounting hole is used to install the vertical groove 7. The hinge is provided on the door hinge side of the upper movable panel 301 and the lower movable panel 305, and the handle lock is provided on the non-door hinge side of the upper movable panel 301 and the lower movable panel 305, so as to facilitate maintenance personnel to open the door movable panel to inspect the internal secondary equipment.

[0022] The square hole facilitates the fixing and disassembly of the panel; the round hole rivet nut facilitates the installation and disassembly of the current transformer mounting plate 307 and the circuit breaker mounting plate 309.

[0023] The connector 306 is connected to the longitudinal and transverse beams 5. The built-in rack assembly 3 is provided with several panels. The feedout terminal 9 is provided on both the left and right sides of the cabinet frame 4 for installing the feedout terminal 9. The feedout terminal 9 is fixed on the longitudinal and transverse beams 5 by guide rails. One end of the cable of the feedout terminal 9 is connected to the feedout switch 8, and the other end is connected to the user's field cable.

[0024] The square hole connects to the snap-fit ​​nut to prevent it from falling off, solving the problem of panel mounting screws falling out, facilitating screwdriver access, and solving the problem of disassembling the mounting plate. The round hole rivet nut is used to solve the problem of not being able to install nuts when mounting from the front.

[0025] The current transformer mounting plate 307 has the current transformers 10 horizontally inclined on its front side. This inclined installation method allows for an increase in the number of current transformers 10 that can be installed in a row. For example, horizontal installation can only accommodate 10 current transformers 10, while inclined installation can accommodate 12 current transformers 10. The back of the current transformer mounting plate 307 has the horizontal groove 6, which makes full use of vertical space and improves the aesthetics of the wiring.

[0026] like Figure 2 As shown, in this embodiment, the horizontal spacing of the baffles 2 is greater than the width of each panel in the built-in rack assembly 3.

[0027] like Figure 1 As shown, in this embodiment, a base plate 11 is provided at the bottom of the cabinet frame 4. The base plate 11 is a detachable structure, and external cables are connected to the feedout terminal 9 through the base plate 11. The wiring of the ribbon cable is built-in to ensure the overall aesthetics of the wiring.

[0028] like Figure 4 As shown, in this embodiment, the round hole of the round hole rivet nut is aligned vertically with the center of the square hole, making it easy for a screwdriver to remove the screw from the front through the square hole.

[0029] like Figure 3 As shown, in this embodiment, the upper movable panel 301 and the lower movable panel 305 are provided with an independently detachable circuit breaker panel 302, indicator light panel 303, and current transformer panel 304, which facilitates the individual disassembly of the circuit breaker mounting plate 309 or the current transformer 10 during maintenance; and facilitates on-site modification and maintenance by maintenance personnel.

[0030] like Figure 4 As shown, in this embodiment, the width of the connector 306 is greater than the width of the corresponding wire groove, which facilitates the arrangement of the vertical wire groove 7, makes full use of the horizontal space occupied by the connector 306, and at the same time improves the aesthetics of the wiring between the feed terminal 9 and the feed switch 8.

[0031] like Figures 1 to 2 As shown, in this embodiment, the horizontal spacing of the baffles 2 is greater than the panel width of the built-in rack assembly 3, so that when the panel is disassembled, the screws can be removed vertically from the direction of the cabinet front door 1 without interfering with the baffles 2, ensuring that the panel can be disassembled smoothly.

[0032] In this embodiment, the panel includes a fixed panel and a movable panel. The fixed panel is configured as an independent and detachable separate panel, that is, the circuit breaker panel 302, indicator light panel 303, and current transformer panel 304 are fixed separately. The purpose is to ensure that they can be disassembled during maintenance, and that they can be disassembled in sections. If the indicator light and the circuit breaker or current transformer form a large board, once the indicator light is wired, the entire board cannot be disassembled, making it impossible to repair the electrical components inside. The movable panel is fixed by a hinge on one side and a handle lock on the other side. The movable panel is used to make full use of the internal space. Some equipment that cannot be arranged on the front of the panel can be moved to the back of the panel and operated by opening the movable panel.

[0033] Although the embodiments of this utility model are described with reference to actual solutions, they do not constitute a limitation on the meaning of this utility model. For those skilled in the art, modifications to the implementation schemes and combinations with other schemes based on this specification are obvious.

Claims

1. A prefabricated cabin panel front maintenance power supply cabinet, characterized in that, It includes a built-in rack assembly (3) and a cabinet frame (4). The front side of the cabinet frame (4) is provided with a cabinet front door (1) and a baffle (2). The left and right sides of the cabinet frame (4) are provided with longitudinal and transverse beams (5). The built-in rack assembly (3) is located on the rear half of the cabinet frame (4) through the longitudinal and transverse beams (5).

2. The prefabricated cabin front maintenance power supply cabinet according to claim 1, characterized in that: A feedout terminal (9) is provided between the baffle (2) and the built-in rack assembly (3). The built-in rack assembly (3) includes a horizontal cable groove (6), a vertical cable groove (7), a feedout switch (8), and a current transformer (10). The inner cable of the feedout terminal (9) enters the horizontal cable groove (6) through the vertical cable groove (7), and then passes through the current transformer (10) to connect with the feedout switch (8).

3. The prefabricated cabin front maintenance power supply cabinet according to claim 2, characterized in that: The built-in rack assembly (3) includes a U-shaped column (308), an upper movable panel (301), a circuit breaker panel (302), an indicator light panel (303), a current transformer panel (304), a lower movable panel (305), a connector (306), a current transformer mounting plate (307), and a circuit breaker mounting plate (309); the U-shaped column (308) is connected to the other side of the connector (306), and the front bent edge of the U-shaped column (308) is provided with a square hole, which is connected to the upper movable panel (301), the circuit breaker panel (302), the indicator light panel (303), the current transformer panel (304), and the lower movable panel (305). The rear bent edge of the U-shaped column (308) is provided with a round hole rivet nut, which is used to fix the current transformer mounting plate (307) and the circuit breaker mounting plate (309) from the front. The current transformer (10) is horizontally inclined on the front of the current transformer mounting plate (307). The horizontal groove (6) is provided on the back of the current transformer mounting plate (307). The mounting hole is provided on the back of the connector (306), which is used to install the vertical groove (7). The hinge is provided on the door hinge side of the upper movable panel (301) and the lower movable panel (305). The handle lock is provided on the non-door hinge side of the upper movable panel (301) and the lower movable panel (305).

4. The prefabricated cabin screen front maintenance power supply cabinet according to claim 3, characterized in that: The horizontal spacing of the baffles (2) is greater than the width of each panel in the built-in rack assembly (3).

5. The prefabricated cabin panel front maintenance power supply cabinet according to claim 2, characterized in that: The bottom of the cabinet frame (4) is provided with a base plate (11), which is a detachable structure. External cables are connected to the feedout terminal (9) through the base plate (11).

6. The prefabricated cabin front maintenance power supply cabinet according to claim 3, characterized in that: The round hole of the round hole rivet nut is aligned vertically with the center of the square hole.

7. The prefabricated cabin front maintenance power supply cabinet according to claim 3, characterized in that: The upper movable panel (301) and the lower movable panel (305) are provided with an independently detachable circuit breaker panel (302), an indicator light panel (303), and a current transformer panel (304).

8. The prefabricated cabin front maintenance power supply cabinet according to claim 3, characterized in that: The width of the connector (306) is greater than the width of the corresponding groove.

9. A prefabricated cabin front maintenance power supply cabinet according to claim 3, characterized in that: The horizontal spacing of the baffles (2) is greater than the panel width of the built-in rack assembly (3).

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