Drawer outlet separate type plug-in structure

Abstract

The utility model relates to a drawer outgoing line split type plug -in structure, including cabinet and drawer, drawer and cabinet slide cooperation, and cabinet is equipped with static socket group, and drawer is equipped with dynamic socket group, the dynamic socket group includes a plurality of first bottom plate and with first bottom plate each other matching first wiring copper bar and dynamic contact, a plurality of first bottom plate are set between the staggered, the static socket group includes a plurality of second bottom plate and with second bottom plate each other matching second wiring copper bar and static contact, a plurality of second bottom plate are set between the staggered, when drawer is in -place cooperation in cabinet, dynamic socket group and static socket group dynamic contact and static contact connection. The utility model improves the socket by the prior art a plurality of wiring copper bar setting on the same support bottom plate to set up in the separate bottom plate respectively in a plurality of wiring copper bar, so that after drawer and cabinet in -place cooperation, after dynamic socket group and static socket group connection, the stress that will be separated base disperses.

Description

Technical Field

[0001] This utility model relates to the field of electrical cabinet wiring technology, specifically to a drawer-type split plug-in structure for cable outlet. Background Technology

[0002] Currently, the functional units of low-voltage drawer-type switchgear generally operate by forming a closed circuit through the close cooperation between the moving plug on the drawer and the stationary plug on the cabinet. The drawer unit is an independent functional module, containing devices such as circuit breakers, contactors, and protective relays, responsible for the power supply, control, and protection of a specific circuit.

[0003] All existing drawer units use integrated plug-in design, such as Figure 1 As shown, the integrated socket on the drawer is mounted on the unit back panel of the cabinet using self-tapping screws. All three-phase plugs on the integrated socket are integrated into a single base. When the drawer is moved to the operating position of the switch cabinet, the incoming plug of the integrated socket snaps into the vertical copper busbar of the cabinet, forming a closed circuit. However, when user cables are connected to the outgoing copper busbar of the integrated static socket, the high rigidity, large diameter, numerous strands, and insufficient bending radius of the user cables generate significant stress. Combined with the cumulative heat effect from multiple downstream load starts, the stress of the three-phase user cables is applied to the integrated socket and its base. This can cause the copper busbar of the integrated socket contacts to shift, become misaligned, or even damage the static socket. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problem that excessively heavy user cables cause stress concentration on the copper busbars, leading to displacement or deformation of the copper busbars. It provides a drawer-style, split-type cable outlet structure, which can effectively manage the cable. The main concept is as follows:

[0005] A drawer-mounted, split-type plug-in structure includes a cabinet and a drawer. The drawer slides into the cabinet. The cabinet has a stationary socket assembly, and the drawer has a movable socket assembly. The movable socket assembly includes multiple first base plates and first wiring copper busbars and moving contacts that match the first base plates. The multiple first base plates are staggered. The stationary socket assembly includes multiple second base plates and second wiring copper busbars and stationary contacts that match the second base plates. The multiple second base plates are staggered. When the drawer is fully engaged in the cabinet, the movable socket assembly connects with the moving and stationary contacts of the stationary socket assembly. This design improves upon the existing technology where multiple wiring copper busbars are mounted on the same supporting base plate, by having multiple wiring copper busbars mounted on separate base plates. This allows the stress on the movable and stationary socket assemblies to be dispersed by the separate bases after the drawer and cabinet are fully engaged and connected.

[0006] Preferably, the drawer includes a back panel, a second base mounted on the back panel, a second wiring busbar mounted on the inner side of the back panel, and a moving contact mounted on the outer side of the back panel; the cabinet includes a partition, a first base mounted on the partition, and an internal cavity for accommodating the moving contact, the cavity communicating with the partition; the first wiring busbar is mounted on the first base in principle, and the stationary contact is mounted within the cavity of the first base. The drawer is slid into the cabinet, and the moving contact on the outside of the drawer is inserted into the cavity of the first base, causing the moving contact to engage with the stationary contact.

[0007] The second aspect of this utility model aims to solve the technical problem that existing internal copper busbars, which use combinations of horizontal and vertical copper busbars of different lengths to reserve electrical safety clearances, require more copper busbars and internal space. Preferably, the second wiring copper busbar connects to the internal copper busbar, which is a horizontally extending, integrally molded structure. The internal copper busbars mounted on the second base plate are staggered. This solution uses horizontally distributed internal copper busbars, based on a separate dynamic socket arrangement. Adjacent internal copper busbars are staggered, allowing the spaced-apart internal copper busbars to overlap, providing a wider safety clearance between them, and resulting in a more space-saving installation layout.

[0008] Preferably, the internal copper busbar includes an inlet copper busbar and an outlet copper busbar, which are connected to a circuit breaker inside the drawer. The circuit breaker can quickly interrupt the current in the event of a short circuit to prevent damage to equipment wiring and fire. It can also activate after a certain period of time to protect the equipment in case of overload, and trip in case of undervoltage or overvoltage to prevent equipment damage. Furthermore, it can be used to isolate the power supply for safety during maintenance, and can be manually or remotely controlled to achieve normal circuit switching for convenient equipment start-up and shutdown and system management.

[0009] Preferably, the first terminal copper busbar is connected to an extension copper busbar, which is used to connect the user cable. A support member is provided in the middle of the extension copper busbar to provide support force. The support member is installed on the side panel of the cabinet, and the side panel is perpendicular to the partition plate of the cabinet. This solution, through the cooperation of the extension copper busbar and the support member, prevents the user cable from being directly installed on the first terminal copper busbar, avoiding the stress caused by the excessive weight of the user cable, which could deform the first terminal copper busbar of the static plug. Furthermore, to avoid the hanging stress caused by the excessive length of the user cable, the user cable can be laid along the support member and bundled along the support member. The force of the user cable on the extension copper busbar is transmitted vertically to the support member and its mounting components, thus dispersing the force originally concentrated at the end of the extension copper busbar connecting to the static socket.

[0010] Preferably, the extended copper busbar includes a bent connection section, which bends towards the support member and connects to the user cable. The bent connection section, which connects to the user cable, is inclined towards the support member, allowing the user cable to easily receive the bent portion when it passes through the support member and connects to the extended copper busbar from the bottom of the cabinet. This reduces the bending angle of the user cable and makes the cable routing more aesthetically pleasing.

[0011] The beneficial effects of this utility model are as follows:

[0012] The existing technology of placing multiple copper busbars on the same supporting base plate for the sockets has been improved by placing multiple copper busbars on separate base plates. This allows the stress on the dynamic socket group and the static socket group to be distributed by the separate base after the drawer and the cabinet are properly fitted together. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the existing drawer terminal block.

[0014] Figure 2 This is a schematic diagram of the drawer structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the drawer and cabinet body of this utility model.

[0016] Figure 4 This is a top view of the drawer structure of this utility model.

[0017] Figure 5 This is a partially enlarged cross-sectional view of the drawer of this utility model.

[0018] Figure 6 This is a schematic diagram of the cabinet structure of this utility model.

[0019] Figure 7 This is a schematic diagram of the extended copper busbar structure of this utility model.

[0020] The attached diagram includes the following reference numerals: 1. Cabinet; 11. Divider; 2. Drawer; 21. Back panel; 22. Circuit breaker; 3. Static socket assembly; 31. First base; 32. First wiring busbar; 33. Static contact; 4. Dynamic socket assembly; 41. Second base; 42. Second wiring busbar; 43. Dynamic contact; 5. Internal busbar; 51. Inlet busbar; 52. Outlet busbar; 6. Extension busbar; 61. Bent wiring section; 7. Support component. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0022] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" are defined based on the contours of the corresponding components. Terms such as "first" and "second" used in this disclosure are for distinguishing one element from another and do not imply sequence or importance.

[0023] Example 1

[0024] like Figures 2-7 As shown, this embodiment provides a drawer 2 cable outlet split plug-in structure, including cabinet 1 and drawer 2. Drawer 2 is slidably engaged with cabinet 1. Cabinet 1 is provided with a static socket group 3 and drawer 2 is provided with a dynamic socket group 4.

[0025] The moving socket group 4 includes multiple first base plates and first wiring copper busbars 32 and moving contacts 43 that are paired with the first base plates, and the multiple first base plates are staggered. The stationary socket group 3 includes multiple second base plates and second wiring copper busbars 42 and stationary contacts 33 that are paired with the second base plates, and the multiple second base plates are staggered.

[0026] When drawer 2 is properly seated inside cabinet 1, the moving contacts 43 and 33 of the moving socket assembly 4 and the stationary contacts 3 of the stationary socket assembly 3 are connected. In this embodiment, the socket is improved from the existing technology where multiple wiring copper busbars are set on the same supporting base plate to multiple wiring copper busbars being set on separate base plates. This allows the stress on drawer 2 after it is properly seated inside cabinet 1 and the moving socket assembly 4 and the stationary socket assembly 3 are connected to be dispersed by the separate base.

[0027] like Figures 2-7 As shown, drawer 2 includes a back panel 21, a second base 41 mounted on the back panel 21, a second wiring copper busbar 42 mounted on the inner side of the back panel 21, and a moving contact 43 mounted on the outer side of the back panel 21.

[0028] The cabinet 1 includes a partition plate 11, a first base 31 is mounted on the partition plate 11, and the interior of the first base 31 is provided with a mounting cavity for accommodating the moving contact 43. The mounting cavity is connected to the partition plate 11. The first wiring copper busbar 32 is mounted on the first base 31, and the stationary contact 33 is mounted in the mounting cavity of the first base 31.

[0029] like Figure 5 As shown, the moving contact 43 and the stationary contact 33 are connected by a snap-fit ​​connection. In one embodiment, the stationary contact 33 has a plate-like structure, and the moving contact 43 has a block-like structure. The moving contact 43 has a snap-fit ​​groove in the middle position. After the stationary contact 33 is inserted into the snap-fit ​​groove of the moving contact 43, the electrical connection is completed.

[0030] In this embodiment, the drawer 2 is slid into the cabinet 1, and the moving contact 43 on the outside of the drawer 2 is inserted into the mounting cavity inside the first base 31 of the cabinet 1, so that the moving contact 43 and the stationary contact 33 are engaged.

[0031] like Figure 3 As shown, the outer side of the partition plate 11 of the cabinet 1 is provided with a mounting bracket for the drawer 2 to cooperate with. The mounting bracket and the drawer 2 are positioned and guided by a guide component, so that the drawer 2 can be quickly aligned and electrically connected when it enters the cabinet 1.

[0032] Example 2

[0033] like Figures 4-5 As shown, in this embodiment, the second copper busbar 42 is connected to the internal copper busbar 5. The internal copper busbar 5 is a horizontally extending integral structure, and the internal copper busbar 5 installed on the second base plate is staggered.

[0034] In this embodiment, the internal copper busbars 5 are horizontally distributed. Based on the separate installation of the movable socket, the adjacent internal copper busbars 5 are staggered, so that the spaced internal copper busbars 5 can overlap each other, and a wider safety gap can be left between the internal copper busbars 5. The installation layout is more space-saving.

[0035] The internal copper busbar 5 in this embodiment includes an inlet copper busbar 51 and an outlet copper busbar 52, which are connected to the circuit breaker 22 inside the drawer 2. The circuit breaker 22 can quickly cut off the current in the event of a short circuit to avoid damage to the equipment lines and fire. It can also operate after a certain period of time to protect the equipment in the event of an overload. It can also trip in the event of undervoltage or overvoltage to prevent damage to the equipment. At the same time, it can be used to isolate the power supply to ensure safety during maintenance. It can also be manually or remotely controlled to realize the normal switching of the circuit to facilitate equipment start-up and shutdown and system management.

[0036] The internal copper busbars 5 are arranged horizontally, and the corresponding second wiring copper busbar 42 in the movable socket group 4 is aligned with the interface of the circuit breaker 22 on the same horizontal plane and is directly connected through the internal copper busbars 5. The movable socket group 4 adopts a triangular distribution, and a certain safety gap can be formed between the uppermost and lowermost movable sockets. Due to the staggered arrangement, the middle movable plugs also maintain a certain safety gap with the uppermost and lowermost movable sockets.

[0037] Example 3

[0038] like Figures 6-7 As shown, in this embodiment, the first connecting copper busbar 32 is connected to the extension copper busbar 6. The extension copper busbar 6 is used to connect the user cable. A support member 7 is provided in the middle of the extension copper busbar 6 to provide support force. The support member 7 is installed on the side plate of the cabinet 1, and the side plate is perpendicular to the partition plate 11 of the cabinet 1. This solution, through the cooperation of the extension copper busbar 6 and the support member 7, prevents the user cable from being directly installed on the first connecting copper busbar 32, avoiding the stress caused by the excessive weight of the user cable, which could cause deformation of the first connecting copper busbar 32 of the static plug. In addition, to avoid the hanging stress caused by the excessive length of the user cable, the user cable can be laid along the support member 7 and bundled along the support member 7. The force of the user cable on the extension copper busbar 6 is transmitted vertically to the support member 7 and its mounting components, thus dispersing the force that was originally concentrated at the end of the extension copper busbar 6 connected to the static socket.

[0039] like Figure 7 As shown, the extension copper busbar 6 in this embodiment includes a bent connection section 61, which bends towards the support member 7 and connects to the user cable. The bent connection section 61, which connects to the user cable, is inclined towards the support member 7. This allows the inclined bent connection section 61 to easily receive the bent user cable when it passes through the support member 7 and connects to the extension copper busbar 6 from the bottom of the cabinet 1, reducing the bending angle of the user cable and making the cable routing more aesthetically pleasing.

[0040] To improve the safety factor of the extended copper busbar 6 and prevent electric shock, such as... Figure 7 As shown, in this embodiment, the extension copper busbar 6 is externally covered with a layer of heat-shrink tubing for insulation, with connection positions reserved only at the mating points between the extension copper busbar 6 and the first wiring copper busbar 32, the support member 7, and the user cable. An insulating cover is installed above the first base 31, covering the extension copper busbar 6 that connects to the first wiring copper busbar 32 and extends outwards. The insulating cover isolates the exposed first wiring copper busbar 32 from the portion of the extension copper busbar 6 not covered by the heat-shrink tubing, preventing accidental contact. The support member 7 is connected to the extension copper busbar 6 at its midpoint via an insulator for support. The exposed screws of the insulator are covered by an insulating cap to avoid safety hazards for operators during operation.

[0041] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A drawer-mounted cable outlet split-type plug-in structure, characterized in that: Includes cabinet body and drawers, with drawers sliding together with the cabinet body. The cabinet body is equipped with a set of stationary sockets, and the drawers are equipped with a set of movable sockets. The movable socket assembly includes multiple first bases and first wiring copper busbars and movable contacts that are paired with the first bases, with the multiple first bases being staggered among themselves; The static socket assembly includes multiple second bases and second wiring copper busbars and static contacts that are paired with the second bases, with the multiple second bases being staggered among themselves; When the drawer is properly seated inside the cabinet, the moving and stationary contacts of the moving socket assembly and the stationary socket assembly are connected. The drawer includes a back panel, a second base mounted on the back panel, a second wiring busbar mounted on the inside of the back panel, and a moving contact mounted on the outside of the back panel. The cabinet includes a partition plate, a first base mounted on the partition plate, and an installation cavity for accommodating a moving contact is provided inside the first base. The installation cavity is connected to the partition plate, a first wiring copper busbar is mounted on the first base, and a stationary contact is mounted in the installation cavity of the first base. The first wiring copper busbar is connected to the extension copper busbar, which is used to connect the user cable. A support member is provided in the middle of the extension copper busbar to provide support force. The support member is installed on the side plate of the cabinet, and the side plate is perpendicular to the partition plate of the cabinet.

2. The drawer-mounted cable outlet split-type plug-in structure according to claim 1, characterized in that: The second wiring copper busbar connects to the internal copper busbar, which is a horizontally extending, integrally molded structure. The internal copper busbars installed on the second base plate are staggered.

3. The drawer-type split-type plug-in structure for cable exit according to claim 2, characterized in that: The internal copper busbar includes an inlet copper busbar and an outlet copper busbar, which are connected to the circuit breaker inside the drawer.

4. The drawer-type split-type plug-in structure for cable exit according to claim 1, characterized in that: The extended copper busbar includes a bent connection section, which bends toward the support member and connects to the user cable.

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