A power distribution cabinet with sockets installed on busbars

Abstract

The application relates to a power distribution cabinet with sockets installed on busbars, and belongs to the technical field of power distribution cabinets. The power distribution cabinet comprises a cabinet body, busbars arranged in the cabinet body, a fixing frame arranged in the cabinet body and an emergency socket. The fixing frame is located below the busbars, the emergency socket is rotationally connected with the fixing frame, a conductive terminal is fixed to one end of the emergency socket away from the interface of the emergency socket, and the conductive terminal is electrically connected with the busbars through a flexible cable. The emergency socket is no longer fixed at a single position by rotationally connecting the emergency socket with the fixing frame and electrically connecting the emergency socket with the fixing frame through the flexible cable, so that the emergency socket has a freedom degree, thereby enabling the emergency socket to be folded to a safe position which does not affect the operation of other devices during a non-use period, and enabling the emergency socket to be turned out to a convenient position which is convenient for plugging and unplugging when electricity is needed. In this way, the space layout inside the power distribution cabinet is optimized, the emergency socket can be prevented from interfering with the cabinet door and other components, and the operation convenience is improved.

Description

Technical Field

[0001] This application relates to the field of distribution cabinets, and more particularly to a distribution cabinet with sockets installed on the busbars. Background Technology

[0002] In power distribution systems, distribution cabinets are key equipment for realizing power distribution and control, and they typically contain main busbars for collecting and transmitting power. To facilitate on-site commissioning, inspection, and maintenance of the distribution cabinets and the electrical equipment installed inside, engineers often need to obtain temporary power supplies from inside the cabinets to connect commissioning instruments, power tools, or lighting equipment.

[0003] Currently, the common practice is to install fixed emergency sockets on the busbars of the distribution cabinet or on the mounting beams adjacent to the busbars inside the cabinet. These sockets are installed using insulated brackets and are electrically connected to the busbars via wires. This fixed installation method provides convenience for on-site power supply to a certain extent.

[0004] However, this traditional fixed installation method has gradually revealed its limitations in practice. Because the internal space of a distribution cabinet is usually quite compact, and it already houses circuit breakers, transformers, and other electrical components, as well as a large number of cables, a fixed socket and its connecting parts permanently occupy the already limited space. This can easily interfere with surrounding equipment or cable conduits, potentially affecting the daily maintenance and operation of other components, and causing inconvenience when opening and closing the cabinet door. Furthermore, to ensure insulation safety, the live parts of the socket must maintain sufficient electrical clearance between the grounded cabinet and other live parts. In confined spaces, the installation location of fixed sockets is often severely restricted, making it difficult to consistently balance installation convenience with optimal safety distances, posing potential safety hazards. Additionally, once the socket interface is fixed in orientation, if its position makes plugging and unplugging inconvenient, it will increase the difficulty and operational risks for maintenance personnel.

[0005] Therefore, the traditional solution of adding fixed sockets to the busbar in the existing technology still has room for improvement in terms of space adaptability, safety and ease of operation. Utility Model Content

[0006] In order to improve the internal space layout and enhance operational safety and convenience, this application provides a power distribution cabinet with sockets installed on the busbar.

[0007] The power distribution cabinet with sockets installed on the busbar provided in this application adopts the following technical solution:

[0008] A power distribution cabinet with a socket installed on a busbar includes a cabinet body and a busbar installed inside the cabinet body, as well as a fixed frame and an emergency socket installed inside the cabinet body. The fixed frame is located below the busbar, and the emergency socket is rotatably connected to the fixed frame. A conductive terminal is fixed to one end of the emergency socket away from its own interface, and the conductive terminal is electrically connected to the busbar through a flexible cable.

[0009] Optionally, the emergency socket can be rotated about a horizontal axis, allowing its interface to switch between facing outwards and downwards from the cabinet.

[0010] Optionally, the mounting bracket is provided with a mounting base, the emergency socket is provided with a rotating shaft, the rotating shaft is rotatably mounted on the mounting base, and the mounting base is provided with a locking mechanism for locking the position of the rotating shaft.

[0011] Optionally, the locking mechanism includes a ratchet fixed coaxially with the rotating shaft, a pawl rotatably disposed on the mounting base, and an elastic element that provides elastic force to the pawl; the elastic force of the elastic element causes the end of the pawl to tend to press against the ratchet teeth of the ratchet.

[0012] Optionally, when the emergency socket is flipped from the downward position to the outward position, the ratchet teeth of the ratchet can overcome the elastic force of the elastic element and pass over the pawl; when the emergency socket is flipped from the outward position to the downward position, the pawl and the ratchet teeth of the ratchet form a one-way lock.

[0013] Optionally, the elastic element is a compression spring, a fixing plate is fixed on the mounting base, one end of the compression spring is connected to the fixing plate, and the other end is connected to the pawl.

[0014] Optionally, the mounting base is provided with a through hole for the rotating shaft to pass through, the end of the rotating shaft away from the emergency socket is provided with a small diameter section, the ratchet is provided with a shaft hole for the small diameter section to pass through, the side wall of the small diameter section is provided with a positioning groove arranged along its axial direction, the hole wall of the shaft hole is provided with a positioning protrusion adapted to the positioning groove, and the end of the small diameter section away from the emergency socket is threadedly connected with a set nut, the set nut abutting against the ratchet.

[0015] Optionally, the mounting base is provided with mounting holes.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. By rotating the emergency socket to the mounting bracket and using flexible cables for electrical connection, the emergency socket is no longer fixed in a single position, gaining greater freedom of movement. This allows the emergency socket to be retracted to a safe position that does not interfere with the operation of other equipment when not in use; and when power is needed, it can be rotated to a convenient position for easy plugging and unplugging. This optimizes the internal space layout of the distribution cabinet, avoids interference with surrounding components and cabinet doors, and, by changing its position rather than fixing it, ensures that the emergency socket maintains a certain safe electrical clearance from surrounding conductors in different states, improving insulation reliability and operational safety.

[0018] 2. The cooperation between the pivot and the mounting base enables stable and smooth rotation of the emergency socket. The locking mechanism secures the emergency socket at the required working angle, preventing accidental rotation due to force during plugging and unplugging, thus ensuring connection reliability. Simultaneously, it prevents the emergency socket from swaying due to its own weight or external forces in vibrating environments, avoiding the risk of collisions with other components or reduced safety clearances caused by accidental movement, and enhancing the long-term operational stability of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a power distribution cabinet with a socket installed on a busbar, according to an embodiment of this application.

[0020] Figure 2 This is a structural schematic diagram illustrating the connection method between the busbar and the conductive terminal in the embodiments of this application.

[0021] Figure 3 This is an exploded view illustrating the locking mechanism in the embodiments of this application.

[0022] Figure 4 This is an exploded view illustrating the ratchet and shaft assembly structure in the embodiments of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Cabinet body; 2. Cabinet door; 3. Busbar; 4. Fixing bracket; 5. Emergency socket; 51. Conductive terminal; 52. Rotating shaft; 521. Small diameter section; 5211. Positioning groove; 6. Flexible cable; 7. Mounting base; 71. Fixing plate; 72. Mounting hole; 8. Locking mechanism; 81. Ratchet; 811. Shaft hole; 8111. Positioning protrusion; 82. Pawl; 83. Elastic element; 84. Set nut. Detailed Implementation

[0024] The following combination Figures 1-4 This application will be described in further detail below.

[0025] Example:

[0026] This application discloses a power distribution cabinet with a socket installed on the busbar. (See also...) Figure 1 and Figure 2 A power distribution cabinet with a socket mounted on a busbar includes a cabinet body 1 and a cabinet door 2 hinged to one side of the cabinet body 1. A busbar 3 and a mounting bracket 4 are fixed inside the cabinet body 1, with the mounting bracket 4 located below the busbar 3. An emergency socket 5 is rotatably connected to the mounting bracket 4. A conductive terminal 51 is fixed to the end of the emergency socket 5 furthest from its own interface. The conductive terminal 51 is electrically connected to the busbar 3 via a flexible cable 6. The length of the flexible cable 6 is configured to have a certain redundancy, so that the flexible cable 6 remains slack throughout the entire flipping stroke of the emergency socket 5, thereby avoiding interference with the flipping action of the emergency socket 5 and avoiding tensile stress on the connection points at both ends of the flexible cable 6.

[0027] Reference Figure 1 and Figure 3 The emergency socket 5 can rotate around a horizontal axis, allowing its interface to switch between facing outwards and downwards from the cabinet 1. When the interface of the emergency socket 5 faces downwards, its length points downwards, and it is in a retracted state, completely contained within the outline of the cabinet 1. This provides a structural basis for designing a thinner and more compact distribution cabinet, facilitating the miniaturization and intensive layout of equipment. When the emergency socket 5 is needed, it can be flipped so that its interface faces outwards. Even if the length of the emergency socket 5 exceeds the plane of the cabinet door 2, it will not interfere with the opening of the cabinet door 2. This allows for a reduction in the overall width of the cabinet 1 while maintaining the same functionality, thus saving space occupied by the cabinet 1. Furthermore, rotating the interface of the emergency socket 5 to face the operator allows the operator to safely plug and unplug the socket in front of the cabinet door 2 without having to reach their body or arms into the cabinet 1, improving usability and eliminating safety hazards.

[0028] Reference Figure 2 and Figure 3 The mounting bracket 4 is detachably fixed with a mounting base 7. The emergency socket 5 is cylindrical. A rotating shaft 52 is fixed radially on the outer wall of the emergency socket 5. The rotating shaft 52 is rotatably mounted on the mounting base 7. The mounting base 7 is provided with a locking mechanism 8 for locking the position of the rotating shaft 52.

[0029] Reference Figure 3The locking mechanism 8 includes a ratchet 81 coaxially fixed with the rotating shaft 52, a pawl 82 rotatably disposed on the side wall of the mounting base 7, and an elastic element 83 providing elastic force to the pawl 82; wherein, the elastic force of the elastic element 83 causes the end of the pawl 82 to tend to press against the ratchet teeth of the ratchet 81. When the emergency socket 5 is flipped from the downward position to the outward position, the ratchet teeth of the ratchet 81 can overcome the elastic force of the elastic element 83 and pass over the pawl 82; when the emergency socket 5 is flipped from the outward position to the downward position, the pawl 82 and the ratchet teeth of the ratchet 81 form a one-way lock. In this embodiment, the elastic element 83 is specifically a compression spring. A fixing plate 71 is fixed on the side of the mounting base 7 away from the emergency socket 5. One end of the compression spring is fixedly connected to the fixing plate 71, and the other end of the compression spring is fixedly connected to the back of the pawl 82.

[0030] Under normal operating conditions, the elastic force of the elastic element 83 forces the pawl 82 to continuously press against the ratchet teeth of the ratchet 81, forming a one-way lock. This prevents the emergency socket 5 from suddenly rotating back in its working position due to accidental force or its own gravity, enhancing stability and safety during operation and avoiding potential loosening or safety hazards caused by the emergency socket 5 shaking or falling. The operator can easily flip the emergency socket 5 from its lower storage position to an outward-facing position for easy use; the process is smooth and unobstructed. When it is necessary to retract the emergency socket 5, the operator only needs to pry the pawl 82 to disengage it from the ratchet teeth of the ratchet 81, thus releasing the lock. At this time, driven by its own gravity, the emergency socket 5 can automatically and smoothly rotate from its outward-facing position to its downward-facing storage position, eliminating the need for the operator to manually flip the emergency socket 5, simplifying the operation process, improving storage efficiency, and utilizing the gravitational potential energy of the emergency socket 5 for self-driven retraction. This makes the entire operation smooth and effortless, optimizing the user experience.

[0031] Reference Figure 3 and Figure 4The mounting base 7 has a through hole (not shown in the figure) through which the rotating shaft 52 can pass. The end of the rotating shaft 52 away from the emergency socket 5 is integrally formed with a small diameter section 521. The ratchet 81 has a shaft hole 811 through which the small diameter section 521 can pass. The side wall of the small diameter section 521 has a positioning groove 5211 arranged along its axial direction. The hole wall of the shaft hole 811 is integrally formed with a positioning protrusion 8111 that matches the positioning groove 5211. The end of the small diameter section 521 away from the emergency socket 5 is threadedly connected to a set nut 84, and the set nut 84 abuts against the end face of the ratchet 81. The circumferential positioning between the ratchet 81 and the rotating shaft 52 is achieved through the cooperation of the small diameter section 521, the positioning groove 5211, and the positioning protrusion 8111. This ensures the uniqueness of the ratchet direction and prevents the locking function from failing due to relative rotation between the ratchet 81 and the rotating shaft 52. The set nut 84 provides axial clamping force, firmly locking the ratchet 81 onto the rotating shaft 52 and preventing axial movement. This facilitates quick assembly of the ratchet 81 and the rotating shaft 52 and ensures the accuracy and reliability of power transmission from the rotating shaft 52 to the ratchet 81, thereby improving the execution accuracy of the entire locking mechanism 8.

[0032] Reference Figure 2 and Figure 3 The mounting base 7 has mounting holes 72, which can be flexibly installed into the predetermined position of the fixing frame 4 using bolts and other fasteners. During installation, components such as the emergency socket 5, the pivot 52, and the locking mechanism 8 are pre-assembled independently and completely on the mounting base 7 to achieve modular pre-assembly. Then, the mounting base 7 is fixed to the fixing frame 4, which simplifies the final assembly difficulty in the narrow space of the cabinet 1 and also provides convenience for subsequent maintenance or replacement.

[0033] The implementation principle of a distribution cabinet with a socket installed on a busbar according to an embodiment of this application is as follows: Through the cooperation of the rotating shaft 52 and the mounting base 7, the emergency socket 5 can rotate stably and smoothly, allowing it to move freely without being fixed in a single position. This enables the emergency socket 5 to be retracted to a safe position that does not interfere with the operation of other equipment during non-use periods; and when power is needed, it can be rotated to a convenient position for easy plugging and unplugging. This optimizes the internal spatial layout of the distribution cabinet, avoids interference with surrounding components and the cabinet door 2, and, by changing its position rather than fixing it, ensures that the emergency socket 5 maintains a certain safe electrical clearance from surrounding conductors in different states, improving insulation reliability and operational safety.

[0034] The locking mechanism 8 helps to secure the emergency socket 5 at the required working angle, preventing it from rotating accidentally due to force when plugging or unplugging, thus ensuring connection reliability. At the same time, it can also prevent the emergency socket 5 from swinging due to its own weight or external force in a vibrating environment, avoiding the risk of collision with other components or reduction of safety clearance due to accidental movement, and enhancing the long-term operational stability of the equipment.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A power distribution cabinet with sockets installed on busbars, comprising a cabinet body (1) and a busbar (3) disposed within the cabinet body (1), characterized in that: It also includes a mounting bracket (4) and an emergency socket (5) located inside the cabinet (1). The mounting bracket (4) is located below the busbar (3). The emergency socket (5) is rotatably connected to the mounting bracket (4). A conductive terminal (51) is fixed at one end of the emergency socket (5) away from its own interface. The conductive terminal (51) is electrically connected to the busbar (3) through a flexible cable (6).

2. The switchgear with sockets installed on busbars according to claim 1, characterized in that: The emergency socket (5) can rotate about a horizontal axis, allowing its interface to switch between facing outwards and downwards from the cabinet (1).

3. The switchgear with sockets installed on busbars according to claim 2, characterized in that: The mounting bracket (4) is provided with a mounting base (7), and the emergency socket (5) is provided with a rotating shaft (52). The rotating shaft (52) is rotatably mounted on the mounting base (7), and the mounting base (7) is provided with a locking mechanism (8) for locking the position of the rotating shaft (52).

4. A power distribution cabinet with a socket installed on a busbar according to claim 3, characterized in that: The locking mechanism (8) includes a ratchet (81) fixed coaxially with the rotating shaft (52), a pawl (82) rotatably disposed on the mounting base (7), and an elastic element (83) that provides elastic force to the pawl (82); the elastic force of the elastic element (83) causes the end of the pawl (82) to tend to press against the ratchet teeth of the ratchet (81).

5. A power distribution cabinet with a socket installed on a busbar according to claim 4, characterized in that: When the emergency socket (5) is flipped from the downward position to the outward position, the ratchet teeth of the ratchet (81) can overcome the elastic force of the elastic element (83) and pass over the pawl (82); when the emergency socket (5) is flipped from the outward position to the downward position, the pawl (82) and the ratchet teeth of the ratchet (81) form a one-way lock.

6. A power distribution cabinet with a socket installed on a busbar according to claim 4, characterized in that: The elastic element (83) is a compression spring, and a fixing plate (71) is fixed on the mounting base (7). One end of the compression spring is connected to the fixing plate (71), and the other end is connected to the pawl (82).

7. A power distribution cabinet with a socket installed on a busbar according to claim 4, characterized in that: The mounting base (7) is provided with a through hole through which the rotating shaft (52) can pass. The end of the rotating shaft (52) away from the emergency socket (5) is provided with a small diameter section (521). The ratchet (81) is provided with a shaft hole (811) through which the small diameter section (521) can pass. The side wall of the small diameter section (521) is provided with a positioning groove (5211) arranged along its axial direction. The hole wall of the shaft hole (811) is provided with a positioning protrusion (8111) that matches the positioning groove (5211). The end of the small diameter section (521) away from the emergency socket (5) is threadedly connected with a set nut (84). The set nut (84) abuts against the ratchet (81).

8. The switchgear with sockets installed on busbars according to claim 3, characterized in that: The mounting base (7) is provided with mounting holes (72).

Images