An easy-to-maintain power distribution cabinet

Abstract

This utility model discloses a maintenance-friendly power distribution cabinet, belonging to the technical field of power distribution cabinets. The utility model includes a protective outer shell, which comprises a housing with a door on the front and a door on each side, each door having an observation window. A circumferential rotation mechanism includes two corresponding bearing seats, each bearing seat having a shaft positioning hole that aligns with a shaft. The shaft connects to an equipment support frame. Inside the equipment support frame, three corresponding dovetail guide rails are distributed on each of the left and right sides. The dovetail guide rails slide in conjunction with dovetail sliders, and a support rod is connected between two dovetail sliders. The circumferential rotation mechanism also includes a support seat, the layout of which is identical to that of the bearing seats. The bearing seats and support seats are stacked inside the protective outer shell. This utility model solves the problems of common power distribution cabinets, such as immobile frames, difficult maintenance, and difficulty in observing internal conditions, through modular layering of the internal space and the addition of multiple visual doors.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, specifically to a power distribution cabinet that is easy to maintain. Background Technology

[0002] In power distribution systems, distribution cabinets, as core equipment, are widely used in various industrial and civil applications. Currently, most distribution cabinets on the market adopt a fixed internal structure, with circuit breakers, busbars, and other electrical components rigidly installed and densely arranged at the rear or side walls of the cabinet. During maintenance of such distribution cabinets, operators must perform equipment repairs or replacements in confined spaces. This not only requires removing multiple panels but also necessitates repeated adjustments to body posture to reach deeper components due to obstructed vision and limited operating angles. For multi-layered electrical modules, maintenance of the rear wiring requires first disassembling the front equipment, significantly increasing operational complexity and downtime.

[0003] While some distribution cabinets have attempted to improve maintainability by adding doors or expanding the compartments, they have failed to address the three-dimensional operational obstacles caused by the stacked equipment. On the one hand, the fixed frames cannot be moved, making it difficult for maintenance tools to reach vertically into densely packed areas. On the other hand, enclosed doors hinder real-time observation of the internal status, forcing maintenance to rely on repeated opening and closing of the doors for confirmation. Furthermore, traditional distribution cabinets do not physically separate the wiring area from the equipment area, leading to interference between wiring organization and component replacement, and increasing the risk of accidental activation. Therefore, there is an urgent need for a maintenance-friendly distribution cabinet with layered dynamic adjustment capabilities, multi-angle visual operation support, and separation of wiring and equipment maintenance to overcome these shortcomings. Utility Model Content

[0004] The purpose of this utility model is to provide a power distribution cabinet that is easy to maintain. By modularly layering the internal space of the power distribution cabinet and adding multiple visual cabinet doors, it solves the problems of common power distribution cabinets, such as the inability to move the frame, difficulty in maintenance, and difficulty in observing the internal status.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model relates to a maintenance-friendly power distribution cabinet, comprising a protective outer shell, which includes a housing with a door on the front and a door on each side; a circumferential rotation mechanism including two corresponding bearing seats, each bearing seat having a shaft positioning hole that aligns with a rotating shaft, which is connected to an equipment support frame; the equipment support frame has an O-shaped opening structure, and multiple sets of dovetail guide rails are symmetrically arranged on the left and right sidewalls inside the equipment support frame, with the dovetail guide rails slidingly engaging with dovetail sliders, and an equipment support rod connecting between two dovetail sliders; the circumferential rotation mechanism also includes a second support seat, whose layout is consistent with the bearing seats, and the bearing seats and support seats are stacked inside the protective outer shell. Preferably, the guide grooves of the dovetail guide rails have a large inclination angle to ensure that the sliders are not prone to derailment when carrying equipment; the O-shaped opening of the equipment support frame faces the cabinet door, providing unobstructed operating space for maintenance of the rotated equipment.

[0007] Furthermore, two hinges are installed on one side of the door, and an observation window and a handle are also provided on the door. Preferably, the observation window is made of a highly transparent material, and its area covers the main field of view of the door, allowing the operator to clearly observe the status of the internal equipment even when the door is closed.

[0008] Furthermore, three modular support seats are slidably mounted on the equipment support rod, and four equipment mounting holes are arranged in a matrix on the modular support seats. Preferably, the modular support seats are fixed to the equipment support rod by detachable locking components, which facilitates adjustment of the installation position according to the equipment size; the equipment mounting holes are through threaded holes to accommodate the installation requirements of standard electrical components.

[0009] Furthermore, the length of the second bearing seat is twice that of the first bearing seat. Preferably, the length of the second bearing seat does not affect the effective load-bearing area of ​​the equipment support frame, allowing it to accommodate more or larger electrical modules.

[0010] Furthermore, it also includes an integrated cabling assembly disposed on the rear inner wall of the protective housing. Preferably, the integrated cabling assembly is maintained at an appropriate distance from the rotary lifting mechanism to ensure no interference when the front middle layer unit rotates.

[0011] Furthermore, the integrated cabling assembly includes four support frames arranged in a matrix, with busbars mounted on two of the support frames and circuit breakers mounted on the other two. Preferably, the support frames adopt a stepped height layout, allowing the busbars and circuit breakers to be arranged in layers; the circuit breaker mounting positions are close to the side of the cabinet for easy cable insertion and removal.

[0012] This utility model has the following beneficial effects:

[0013] This invention, through the coordinated design of the front / middle layer rotating lifting unit (including bearing housing, rotating shaft, dovetail guide rail, and equipment support rod), enables electrical equipment to rotate horizontally and lift vertically, effectively solving the problems of difficulty in accessing deep components and limited operating space caused by the stacking of equipment in traditional distribution cabinets. During maintenance, operators do not need to disassemble peripheral equipment or frequently adjust their posture; they only need to rotate the target equipment layer towards the cabinet door and adjust it to a suitable height to complete the repair within an unobstructed operating space, significantly shortening maintenance time and reducing labor intensity.

[0014] This invention integrates high-transmittance observation windows on the front and side doors, covering the main field of view of the door, allowing operators to observe the operating status and fault locations of internal equipment in real time without opening the cabinet door. This design not only avoids operational interruptions caused by repeated opening and closing of the cabinet door, but also reduces the risk of personnel accidentally touching live components. Especially in complex working conditions (such as dusty or humid environments), it can significantly reduce the probability of foreign object intrusion due to opening the cabinet, improving the safety and continuity of the maintenance process.

[0015] This utility model adopts a three-layer physical isolation architecture: the front and middle layers are movable equipment layers, and the rear layer is a fixed integrated wiring assembly (including busbars and circuit breakers). This design achieves spatial separation between equipment maintenance and line operation. When rotating units are under maintenance, the rear wiring area remains static, avoiding accidental contact or loosening of the lines. At the same time, the layered architecture also supports modular replacement, and a single-layer fault does not require a complete shutdown, ensuring the continuous operation of the power distribution system.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] Figure 1 This is a front view of a power distribution cabinet designed for easy maintenance.

[0018] Figure 2 This is a schematic diagram of a power distribution cabinet structure that is easy to maintain;

[0019] Figure 3 This is a schematic diagram of the internal structure of a power distribution cabinet that is easy to maintain.

[0020] Figure 4 An exploded view of a power distribution cabinet designed for easy maintenance;

[0021] Figure 5 An easy-to-maintain electrical distribution cabinet explosion Figure 4 Enlarged view of area A in the middle.

[0022] In the diagram: 1. Protective casing; 101. Casing; 102. Door; 103. Observation window; 104. Hinge; 105. Handle; 2. Circumferential rotation mechanism; 201. Bearing seat one; 202. Rotating shaft; 203. Equipment support frame; 204. Dovetail guide rail; 205. Dovetail slider; 206. Equipment bearing rod; 207. Modular bearing seat; 208. Equipment mounting hole; 209. Bearing seat two; 210. Rotating shaft positioning hole; 3. Integrated wiring assembly; 301. Support frame; 302. Busbar; 303. Circuit breaker. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5This utility model provides a technical solution: a power distribution cabinet that is easy to maintain, including a protective shell 1. The protective shell 1 provides overall protection, shielding internal components from external dust, moisture, and impacts. The protective shell 1 includes a housing 101, which forms the main frame of the power distribution cabinet and provides a mounting base for each component. The housing 101 has a door 102 on both the front and side. The doors 102 are openable. The front door facilitates operation and maintenance of the front-facing equipment inside the cabinet, while the side doors facilitate inspection of components in the side areas, increasing maintenance convenience. Each door 102 has an observation window 103 made of transparent material, eliminating the need for... Opening the cabinet door allows for easy observation of the equipment's operating status, reducing unnecessary door opening operations. The circumferential rotation mechanism 2 drives the mounted equipment to rotate circumferentially, allowing the equipment to be adjusted in orientation according to maintenance needs. This makes it easier for maintenance personnel to access all parts of the equipment, including two corresponding bearing seats 201. The bearing seats 201 support the rotating shaft 202, ensuring its stable rotation. Each bearing seat 201 has a shaft positioning hole 210 for precise positioning of the rotating shaft 202, ensuring accurate installation and preventing misalignment during rotation. The shaft positioning hole 210 aligns with the rotating shaft 202, allowing the shaft 202 to rotate within the positioning hole. The rotating shaft 202 connects to the equipment support frame 203, which is used to install the dovetail guide rails 204 and the equipment support rod 206. It forms the main frame supporting the equipment. The equipment support frame 203 has three corresponding dovetail guide rails 204 on each of its left and right sides. The dovetail guide rails 204 provide a sliding track for the dovetail slider 205. Their dovetail structure prevents the slider from falling off, ensuring stability during sliding. The dovetail guide rails 204 slide in conjunction with the dovetail slider 205, allowing the slider 205 to slide along the guide rails, thereby moving the equipment support rod 206 and facilitating adjustment of its position. The device is mounted on a support rod 206 between two dovetail sliders 205. The support rod 206 is used to install the modular support seat 207, providing a mounting carrier for the device. The circumferential rotation mechanism 2 also includes a second support seat 209, which functions similarly to the first bearing seat 201, supporting the rotating shaft. It works in conjunction with the first bearing seat 209 to enable the installation and rotation of multi-layer devices. The layout of the second support seat 209 is consistent with that of the first bearing seat 201. The first bearing seat 201 and the second support seat 209 are stacked inside the protective shell 1. The stacked arrangement can make full use of the internal space of the protective shell 1, increase the number of devices that can be installed, and at the same time, each layer can rotate independently without interfering with each other, which is convenient for layered maintenance.

[0025] Two hinges 104 are installed on one side of the door 102. The hinges 104 connect the door 102 to the housing 101, so that the door 102 can be opened and closed flexibly and the normal use of the door is guaranteed. A handle 105 is provided on the door 102. The handle 105 makes it convenient for the operator to open and close the door 102 and provides a point of force.

[0026] Three modular support seats 207 are slidably mounted on the equipment support rod 206. These modular support seats 207 can slide along the equipment support rod 206, facilitating adjustment of the spacing between them to accommodate the installation needs of equipment of different sizes. Four equipment mounting holes 208 are arranged in a matrix on each modular support seat 207. These holes are used to fix the equipment to the modular support seat 207 using bolts or other connecting components, ensuring a secure installation. During operation, necessary components are installed through the equipment mounting holes 208. The circumferential rotation mechanism 2 facilitates maintenance, and the working status can be viewed through the observation window 103.

[0027] The length of bearing seat 209 is twice that of bearing seat 201. The longer length allows bearing seat 209 to support more or larger equipment, increasing the equipment load capacity of the distribution cabinet. At the same time, the staggered working surface facilitates maintenance.

[0028] It also includes an integrated cabling assembly 3, which is used to centrally arrange busbars and circuit breakers, making the cabling inside the cabinet neat and orderly, and facilitating the sorting and maintenance of the lines. The integrated cabling assembly 3 is set on the inner rear wall of the protective housing 1. Installing it on the inner rear wall can avoid mutual interference with the equipment on the front and sides, and at the same time facilitates the inspection and maintenance of the cabling from the side.

[0029] The integrated cabling assembly 3 includes four support frames 301 arranged in a matrix. The support frames 301 are used to fix the busbars 302 and circuit breakers 303 to ensure their stable installation. The busbars 302 are installed on two of the support frames 301. The busbars 302 are used to collect and distribute electrical energy and are key components for power transmission. The circuit breakers 303 are installed on the other two support frames 301. The circuit breakers 303 can automatically disconnect the circuit when a circuit fault occurs, thus protecting the circuit and equipment safety.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A power distribution cabinet that is easy to maintain, comprising, characterized in that: The protective shell (1) includes a housing (101), and a door (102) is provided on the front and side of the housing (101). The door (102) is provided with an observation window (103). A circumferential rotating mechanism (2) includes two corresponding bearing seats (201). The bearing seats (201) have shaft positioning holes (210) that are connected to the shaft (202). The shaft (202) is connected to the equipment support frame (203). The equipment support frame (203) has three corresponding dovetail guide rails (204) on each of its left and right sides. The dovetail guide rails (204) are slidably fitted with dovetail sliders (205). The two dovetail sliders (205) are connected to the equipment support rod (206). The circumferential rotation mechanism (2) also includes a second bearing seat (209), the layout of which is consistent with that of the first bearing seat (201), and the first bearing seat (201) and the second bearing seat (209) are stacked inside the protective shell (1).

2. The easy-to-maintain distribution cabinet according to claim 1, characterized in that, Two hinges (104) are installed on one side of the box door (102), and a handle (105) is provided on the box door (102).

3. The easy-to-maintain distribution cabinet according to claim 1, characterized in that, Three modular support seats (207) are slidably installed on the equipment support rod (206), and four equipment mounting holes (208) are arranged in a matrix on the modular support seats (207).

4. The easy-to-maintain power distribution cabinet according to claim 1, characterized in that, The length of the bearing seat 2 (209) is twice that of the bearing seat 1 (201).

5. The easy-to-maintain distribution cabinet according to claim 1, characterized in that, It also includes an integrated cabling assembly (3), which is disposed on the rear inner wall of the protective housing (1).

6. The easy-to-maintain power distribution cabinet according to claim 5, characterized in that, The integrated cabling assembly (3) includes four support frames (301) arranged in a matrix, with busbars (302) installed on two of the support frames (301) and circuit breakers (303) installed on the other two support frames (301).

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