MNS low-voltage drawer type switch cabinet

Abstract

The utility model discloses an MNS low-voltage drawer-type switch cabinet, which is used for reducing the complexity degree during assembly and enhancing the strength of a cabinet body. The distribution box comprises a column and a cross beam, the column and the cross beam are integrally formed and connected, the column and the cross beam cooperate to form a drawer chamber, a side outlet cable chamber, a rear outlet cable chamber and a main bus chamber, the drawer chamber is provided with a plurality of drawer grooves, and one distribution drawer can be placed in one drawer groove. The main bus chamber is located above the drawer chamber, the side outlet cable chamber and the rear outlet cable chamber, and a drawer top partition plate is arranged between the main bus chamber and the drawer chamber; a drawer rear mounting plate is arranged between each drawer groove and the rear outlet cable chamber, a wire outlet end socket and a wire inlet end plug are arranged on the drawer rear mounting plate, and a circuit breaker in the power distribution drawer is connected with the wire outlet end socket and the wire inlet end plug respectively.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to an MNS low-voltage drawer-type switch cabinet. Background Art

[0002] MNS low-voltage drawer switchgear is a kind of power facility, which is widely used in distribution stations, factories, industrial and mining enterprises, nuclear power plants, building power distribution and other places. Whether in power plants, substations or in building hotels, airports, docks and communication centers such as radio and television, MNS low-voltage drawer switchgear plays a key role in power generation, transmission and distribution, power conversion and control of power consumption equipment; MNS low-voltage drawer switchgear has the characteristics of modular design, high-standard electrical performance, strong carrying capacity, safety and reliability, flexibility and versatility, etc., and plays an important role in the power system.

[0003] The main body of the existing MNS low-voltage drawer-type switch cabinet is assembled with a C-profile structure. The C-profile structures are connected by triangular connectors, and the C-profile structures and the triangular connectors are assembled using bolts, screws and other components. However, during the assembly process, the steps of aligning the triangular connectors and assembling the screws are relatively cumbersome, and the strength of the cabinet formed by the triangular connector and the C-profile is low. When the number of drawers is large, the cabinet is unstable.

[0004] Based on this, there is an urgent need for an MNS low-voltage drawer-type switch cabinet to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides an MNS low-voltage drawer-type switch cabinet, which can reduce the complexity of assembly and enhance the strength of the cabinet.

[0006] The present application provides an MNS low-voltage drawer switch cabinet, comprising:

[0007] The columns and beams are integrally connected to each other, and the columns and beams cooperate to form a drawer chamber, a side outlet cable chamber, a rear outlet cable chamber, and a main bus chamber. The drawer chamber is provided with a plurality of drawer slots, and one drawer slot can hold a power distribution drawer. The main bus chamber is located above the drawer chamber, the side outlet cable chamber, and the rear outlet cable chamber, and a drawer top partition is provided between the main bus chamber and the drawer chamber;

[0008] A drawer rear mounting plate is arranged between each drawer slot and the rear outlet cable chamber, and an outlet socket and an incoming plug are arranged on the drawer rear mounting plate. The circuit breaker in the power distribution drawer is connected to the outlet socket and the incoming plug respectively.

[0009] Optionally, a drawer layer partition is provided between two adjacent drawer grooves, and the drawer layer partition is connected to the column.

[0010] Optionally, guide rails are provided on both sides of the drawer layer partition, and the guide rails are aligned with the pulleys on both sides of the power distribution drawer.

[0011] Optionally, an advance-retract mechanism seat is provided on the drawer layer partition, and the advance-retract mechanism seat is aligned with the advance-retract mechanism on the power distribution drawer, and the advance-retract mechanism cooperates with the advance-retract mechanism seat to control the movement of the power distribution drawer.

[0012] Optionally, the advance and retract mechanism seat is fixed to the drawer layer partition by bolts.

[0013] Optionally, a top cover is provided above the main busbar chamber, and the top cover is connected to the column.

[0014] Optionally, a bottom plate is provided at the bottom of the drawer chamber and the bottom of the rear outlet cable chamber.

[0015] Optionally, a baffle is provided between the side outlet cable chamber and the rear outlet cable chamber, and the baffle is provided with perforations.

[0016] Optionally, a transparent cover is movably connected to the outlet socket.

[0017] Optionally, a slide groove is provided on the drawer layer partition, a movable slide is provided in the slide groove, a groove is provided on the upper surface of the slide, a protrusion is provided at the bottom of the power distribution drawer, and the protrusion is embedded in the groove. When the power distribution drawer moves, the protrusion cooperates with the groove to drive the slide to move.

[0018] It can be seen from the above technical solutions that this application has the following effects:

[0019] In the present application, a cabinet body is formed by connecting the columns and beams through an integral molding method, and a drawer room, a side outlet cable room, a rear outlet cable room and a main busbar room are formed in the cabinet body. A plurality of drawer slots are arranged in the drawer room, and one drawer slot can hold a distribution drawer. A drawer rear mounting plate is arranged between each drawer slot and the rear outlet cable room, and an outlet socket and an incoming plug are arranged on the drawer rear mounting plate. The outlet socket and the incoming plug are respectively connected to the circuit breaker in the distribution drawer. Therefore, the combination of the C-profile structure and the triangular connector in the prior art is first changed to an integrally molded column and beam, which not only reduces the cumbersomeness of installing screws, but also can further enhance the strength of the cabinet body and improve the stability of the cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution in the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of an MNS low-voltage drawer switch cabinet provided in this application;

[0022] Figure 2 Another schematic diagram of an MNS low-voltage drawer switch cabinet provided in this application;

[0023] Figure 3 A partially enlarged schematic diagram of an MNS low-voltage drawer-type switch cabinet provided in this application;

[0024] Figure 4 Another partially enlarged schematic diagram of an MNS low-voltage drawer-type switch cabinet provided in this application;

[0025] Figure 5 A schematic diagram of a drawer layer partition in an MNS low-voltage drawer-type switch cabinet provided in the present application;

[0026] Figure 6 Another schematic diagram of a drawer layer partition in an MNS low-voltage drawer-type switch cabinet provided in the present application. DETAILED DESCRIPTION

[0027] In the present utility model, the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside”, “outside”, “middle”, “vertical”, “horizontal”, “lateral” and “longitudinal” are based on the directions or positional relationships shown in the accompanying drawings and are only used to illustrate the relative positional relationships between the components or parts, and do not particularly limit the specific installation directions of the components or parts.

[0028] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0029] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In addition, the structures, proportions, sizes, etc. drawn in the drawings in the present application are only used to match the contents disclosed in the specification for the technical personnel in this field to understand and read, and are not used to limit the restrictive conditions under which the present application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present application without affecting the effects and purposes that can be achieved by the present application.

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] The present application provides an MNS low-voltage drawer-type switch cabinet, which is used to reduce the complexity of assembly and enhance the strength of the cabinet. The specific implementation process of the present application is described as follows.

[0033] See also Figures 1 to 6 The present application provides an MNS low-voltage drawer switch cabinet comprising:

[0034] The column 1 and the crossbeam 2 are integrally formed and connected. The column 1 and the crossbeam 2 cooperate to form a drawer room, a side outlet cable room, a rear outlet cable room and a main bus room. The drawer room is provided with a plurality of drawer slots, and one drawer slot can hold a power distribution drawer 3. The main bus room is located above the drawer room, the side outlet cable room and the rear outlet cable room. A drawer top partition 4 is provided between the main bus room and the drawer room.

[0035] A drawer rear mounting plate 5 is provided between each drawer slot and the rear outlet cable chamber, and an outlet terminal socket 52 and an incoming terminal plug 51 are provided on the drawer rear mounting plate 5. The circuit breaker in the distribution drawer 3 is connected to the outlet terminal socket 52 and the incoming terminal plug 51 respectively.

[0036] The column 1 and the beam 2 are perpendicular to each other and are connected in an integrated manner to form a square cabinet. The drawer room, the side outlet cable room, the rear outlet cable room and the main busbar room are all located in the cabinet. The integrated molding method can be casting, welding or stamping. The two cannot be separated after connection, thereby enhancing the strength of the cabinet, improving the stability of the cabinet and reducing shaking.

[0037] The rear-outlet cable chamber and the side-outlet cable chamber are both used to place cables. The main busbar chamber is located above the drawer chamber, the side-outlet cable chamber, and the rear-outlet cable chamber. The top of the main busbar chamber is open, which can facilitate the whole-section installation of the main busbar. The open type means that the side of the main busbar chamber is open without any obstruction, or the top cover 7 on the top of the main busbar chamber is in an openable form.

[0038] Several drawer slots are arranged to be vertically aligned, and the upper and lower drawer slots are separated by a drawer layer partition 6. A drawer layer partition 6 is also arranged below the drawer slot located at the bottom of the drawer chamber, and the four corners of the drawer layer partition 6 are fixedly connected to the column 1; the column 1 includes 4 outer columns and 3 inner columns, and the 3 inner columns and 1 outer column are surrounded to form a drawer chamber. In a feasible manner, the drawer layer partition 6 can be connected to the 3 inner columns and 1 outer column in a detachable manner, thereby the upper and lower positions of the drawer layer partition 6 can be changed at will, thereby changing the size of the drawer slot to adapt to multiple models of power distribution drawers 3.

[0039] The power distribution drawer 3 is provided with a circuit breaker, an incoming branch row, and an outgoing branch row, which are connected by cables. When the power distribution drawer 3 is fully inserted into the drawer slot, the outgoing branch row is connected to the outgoing socket 52, and the incoming branch row is connected to the incoming plug 51. An operating handle is also provided outside the power distribution drawer 3, and the operating handle is connected to the circuit breaker. An advance and retreat mechanism is provided at the bottom of the power distribution drawer 3, which passes through the bottom plate 8 of the power distribution drawer 3, and cooperates with the advance and retreat mechanism seat 62 on the drawer layer partition 6 to realize the advance and retreat of the power distribution drawer 3 in the drawer slot.

[0040] Please continue reading Figure 4 In one practicable manner, a plurality of grooves are provided on the advance and retreat mechanism seat 62, and a rotatable threaded rod is provided in the advance and retreat mechanism, and the thread of the threaded rod is inserted into the groove. Since the advance and retreat mechanism seat 62 is fixed, the threaded rod rotates to drive the power distribution drawer 3 to move; the advance and retreat mechanism seat 62 is fixed to the drawer layer partition 6 by bolts. By setting the threaded rod and the groove to cooperate, the movement of the power distribution drawer 3 can be restricted, and the power distribution drawer 3 can be prevented from moving at will, achieving a locking effect. In actual use, the threaded rod can be manually rotated to move the threaded rod out of the groove to achieve unlocking.

[0041] Optional, please continue to Figure 3 Guide rails 61 are provided on both sides of the drawer layer partition 6, and the guide rails 61 are aligned with the pulleys on both sides of the bottom of the power distribution drawer 3. Specifically, the pulleys are embedded in the guide rails 61, and the pulleys are in a rotatable state in the guide rails 61. By providing the guide rails 61, the smoothness of the power distribution drawer 3 entering and exiting the drawer slot is improved, and the resistance is reduced.

[0042] Optionally, a top cover 7 is provided above the main busbar chamber, and the top cover 7 is connected to four outer columns 1 among the columns 1. A lifting ring is provided on the crossbeam 2 beside the top cover 7, through which the switch cabinet of the present application can be lifted as a whole, which is convenient for fixing during transportation.

[0043] Optionally, a bottom plate 8 is provided at the bottom of the drawer chamber and the bottom of the rear cable chamber. In the drawer chamber, there is a distance between the bottom plate 8 and the lowest drawer slot, so that tools can be placed on the bottom plate 8; by providing the bottom plate 8 in the rear cable chamber, tools can also be placed on the bottom plate 8.

[0044] Optionally, a baffle 9 is provided between the side cable chamber and the rear cable chamber, and a perforation is provided on the baffle 9. By providing the baffle 9, accidents caused by arcing due to faults or short circuits between the busbar and other lines can be effectively prevented. By providing the perforations, it is convenient to connect the side cable chamber and the rear cable chamber by cables. In this embodiment, the material used for the baffle 9 can be steel plate or high-strength flame-retardant plastic.

[0045] Optionally, a transparent cover is movably connected to the outlet socket 52, and the transparent cover can protect the outlet socket 52, such as being waterproof and dustproof. One side of the transparent cover is connected to the outlet socket 52, and the outlet socket 52 can be operated by flipping the transparent cover during actual use.

[0046] Optional, please continue to Figure 5 and Figure 6 In one feasible manner, a slide groove is provided on the drawer layer partition 6, and a movable slide plate 63 is provided in the slide groove. A groove is provided on the upper surface of the slide plate 63, and the groove is parallel to the moving direction of the power distribution drawer 3. A protrusion 31 is provided at the bottom of the power distribution drawer 3, and the protrusion 31 is embedded in the groove. When the power distribution drawer 3 moves, the protrusion 31 cooperates with the groove to drive the slide plate 63 to move. In this embodiment, when the power distribution drawer 3 moves, the protrusion 31 will abut against the end of the groove, thereby pushing the slide plate 63 to move with the power distribution drawer 3. When the power distribution drawer 3 is pulled out of the drawer groove and the end of the power distribution drawer 3 is still in the drawer groove, one end of the slide plate 63 is located below the power distribution drawer 3, and the other end is still located on the drawer layer partition 6. At this time, it can provide support for the power distribution drawer 3, thereby preventing the front end of the power distribution drawer 3 from being pressed down due to its own weight, causing damage to the pulley and guide rail 61.

[0047] In the present application, by setting the column 1 and the beam 2 as an integrally formed connection, the overall structural strength and stability of the cabinet can be enhanced, and the number of screws used can be reduced, reducing the number of parts when connecting the column 1 and the beam 2, thereby reducing the complexity.

[0048] Secondly, the present application is compact in design, can accommodate more functional units in a smaller space, and has strong structural versatility.

[0049] In addition, the top of the main busbar room is open, which is convenient for the whole-section installation of the main busbar.

[0050] It should be noted that the above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present application. Various modifications to these embodiments will be apparent to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A MNS low-voltage drawer switch cabinet, characterized in that: include: The columns and beams are integrally connected to each other, and the columns and beams cooperate to form a drawer chamber, a side outlet cable chamber, a rear outlet cable chamber, and a main bus chamber. The drawer chamber is provided with a plurality of drawer slots, and one drawer slot can hold a power distribution drawer. The main bus chamber is located above the drawer chamber, the side outlet cable chamber, and the rear outlet cable chamber, and a drawer top partition is provided between the main bus chamber and the drawer chamber; A drawer rear mounting plate is arranged between each drawer slot and the rear outlet cable chamber, and an outlet socket and an incoming plug are arranged on the drawer rear mounting plate. The circuit breaker in the power distribution drawer is connected to the outlet socket and the incoming plug respectively.

2. The MNS low-voltage drawer switch cabinet according to claim 1 is characterized in that: A drawer layer partition is arranged between two adjacent drawer grooves, and the drawer layer partition is connected to the upright column.

3. The MNS low-voltage drawer switch cabinet according to claim 2 is characterized in that: Guide rails are arranged on both sides of the drawer layer partition, and the guide rails are aligned with the pulleys on both sides of the power distribution drawer.

4. The MNS low-voltage drawer switch cabinet according to claim 2 is characterized in that: The drawer layer partition is provided with an advance and retreat mechanism seat, the advance and retreat mechanism seat is aligned with the advance and retreat mechanism on the power distribution drawer, and the advance and retreat mechanism cooperates with the advance and retreat mechanism seat to control the movement of the power distribution drawer.

5. The MNS low-voltage drawer switch cabinet according to claim 4 is characterized in that: The advance and retreat mechanism seat is fixed on the drawer layer partition plate by bolts.

6. The MNS low-voltage drawer switch cabinet according to any one of claims 1 to 5, characterized in that: A top cover is arranged above the main busbar chamber, and the top cover is connected to the column.

7. The MNS low-voltage drawer switch cabinet according to any one of claims 1 to 5, characterized in that: The bottom of the drawer chamber and the bottom of the rear outlet cable chamber are both provided with bottom plates.

8. The MNS low-voltage drawer switch cabinet according to any one of claims 1 to 5, characterized in that: A baffle is provided between the side outlet cable chamber and the rear outlet cable chamber, and the baffle is provided with perforations.

9. The MNS low-voltage drawer switch cabinet according to any one of claims 1 to 5, characterized in that: A transparent cover is movably connected to the outlet socket.

10. The MNS low-voltage drawer switch cabinet according to claim 2 is characterized in that: A slide groove is provided on the drawer layer partition, a movable slide plate is provided in the slide groove, a groove is provided on the upper surface of the slide plate, a protrusion is provided at the bottom of the power distribution drawer, and the protrusion is embedded in the groove. When the power distribution drawer moves, the protrusion cooperates with the groove to drive the slide plate to move.

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