Common-cabin drawer-type low-voltage power distribution cabinet

Abstract

The utility model discloses a common cabin drawer type low-voltage power distribution cabinet, which relates to the technical field of power distribution cabinets, and comprises a cabinet body and two groups of drawer units slidably mounted in the cabinet body, the drawer units are symmetrically arranged along the middle part of the cabinet body, and the drawer units can slide back and forth and left and right in the horizontal direction; a wire inlet cabin is vertically formed in the middle of the cabinet body, and a primary wiring plug-in is installed in the wire inlet cabin and electrically connected with a primary wire. According to the utility model, the cabinet body space can be effectively saved, the arrangement density of the drawer units can be improved, and the wiring space of the wire outlet cabin can be relatively increased by dividing the plurality of cabins and combining the wiring mode of respective wiring, and the drawer units at the two sides share the wire inlet cabin at the middle part for cable connection; and the control line is arranged in the independent control line cabin, so that the installation of the intelligent module can be facilitated, and convenience is provided for subsequent function upgrading.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, and in particular to a shared-compartment drawer-type low-voltage power distribution cabinet. Background Technology

[0002] Low-voltage switchgear is an important piece of equipment used in low-voltage power systems. It is primarily responsible for controlling, protecting, and distributing electrical energy, and is widely used by power users such as power plants, substations, and power departments of industrial and mining enterprises.

[0003] The existing drawer-type low-voltage distribution cabinet has a shared compartment structure. Except for the drawer mounting positions, all primary lines, secondary lines, and some control lines are located in the rear compartment. This causes the following problems:

[0004] First, the rear cabin space is relatively small, with dense cables, and the strong and weak current cables are close together and not completely isolated, posing safety hazards during operation. The operating space behind the control cabinet is usually limited, making the maintenance of weak current (control) lines difficult and hindering the arrangement of intelligent components.

[0005] Secondly, the high-load wire diameter is larger and the turning radius is larger, which limits the arrangement density of the front drawers. The drawer density is low, and the floor space is large for the same power. Utility Model Content

[0006] The purpose of this application is to provide a shared-compartment drawer-type low-voltage distribution cabinet to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this application provides the following technical solution: a shared-compartment drawer-type low-voltage distribution cabinet, including a cabinet body and drawer units that are slidably installed in the cabinet body. Two sets of drawer units are arranged symmetrically along the middle of the cabinet body, and the drawer units can slide back and forth and left and right in the horizontal direction.

[0008] A cable inlet compartment is vertically formed in the middle of the cabinet. A primary wiring plug is installed in the cable inlet compartment and is electrically connected to the primary cable.

[0009] A control cable compartment is formed on the front side of the middle part of the cabinet. A control cable plug is installed in the control cable compartment and is electrically connected to the control cable.

[0010] A cable outlet compartment is formed on the rear side of the cabinet. A secondary wiring plug is fixed in the middle of the side of the cabinet near the cable outlet compartment. The secondary wiring plug is connected to the secondary cable and the secondary cable exits from the upper and lower parts of the cable outlet compartment.

[0011] The N-line busbar is installed on the side of the outgoing cable compartment near the middle of the cabinet, and a common grounding busbar is fixed on the bottom of the outgoing cable compartment away from the middle of the cabinet. The common grounding busbar is electrically connected to the N-line busbar.

[0012] As a further supplement to this solution, a busbar compartment is formed on the top of the cabinet, and the lower end of the busbar compartment is connected to the incoming line compartment. A common busbar is fixed inside the busbar compartment and is electrically connected to the primary line.

[0013] As a further supplement to this plan, the outgoing line compartment and the incoming line compartment, the incoming line compartment and the control line compartment, the control line compartment and the busbar compartment, and the outgoing line compartment and the busbar compartment are all separated by partitions.

[0014] As a further supplement to this solution, the secondary wiring plug is located on the rear side of the incoming line compartment, and the secondary wiring plug is exposed on the front side of the outgoing line compartment.

[0015] As a further supplement to this solution, drawer compartments are formed on the left and right sides of the front of the cabinet. Secondary wiring plugs, primary wiring plugs, and control wire plugs all extend into the drawer compartments, and the drawer units move into the drawer compartments from the front.

[0016] The drawer compartment is equipped with a drive mechanism for moving the drawer unit left and right, and forward and backward. The drawer compartment is also equipped with a locking mechanism for limiting the drawer unit.

[0017] As a further supplement to this plan, the motherboard compartment, control line compartment, and outgoing line compartment are all equipped with independent doors.

[0018] In summary, the technical effects and advantages of this utility model are as follows:

[0019] In this utility model, by setting up multiple compartments and combining them with separate wiring patterns, the drawer units on both sides share the central inlet compartment for cable connection, which can effectively save cabinet space, increase the arrangement density of drawer units, relatively increase the wiring space of the outlet compartment, facilitate maintenance and modification, and set the control line in an independent control line compartment, which can facilitate the installation of intelligent modules and provide convenience for subsequent functional upgrades.

[0020] In addition, after the compartment wiring is completed, all operations, monitoring and control can be completed at the front of the cabinet, making operation more convenient. The complete isolation between the compartments can greatly reduce the risk of accidents. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a first-view stereoscopic structural diagram of the embodiment.

[0023] Figure 2 This is a schematic diagram of the second-view stereoscopic structure in this embodiment;

[0024] Figure 3 This is a top sectional view of this embodiment.

[0025] In the diagram: 1. Cabinet; 2. Drawer unit; 3. Busbar compartment; 4. Control line compartment; 5. Common busbar; 6. Neutral busbar; 7. Outgoing line compartment; 8. Common grounding busbar; 9. Secondary wiring connector; 10. Incoming line compartment; 11. Primary wiring connector; 12. Control line connector. Detailed Implementation

[0026] 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.

[0027] Example: Reference Figure 1-3 The shared-compartment drawer-type low-voltage distribution cabinet shown includes a cabinet body 1 and a drawer unit 2 that is slidably installed in the cabinet body 1. Two sets of drawer units 2 are arranged symmetrically along the middle of the cabinet body 1. The drawer units 2 can slide back and forth and left and right in the horizontal direction. The drawer units 2 are the same size (maximum load of a single drawer is 640A), which facilitates later maintenance and replacement.

[0028] A cable inlet compartment 10 is vertically formed in the middle of the cabinet 1. A primary wiring plug 11 is installed in the cable inlet compartment 10 and is electrically connected to the primary line.

[0029] A control line compartment 4 is formed on the front side of the middle part of the cabinet 1. A control line plug 12 is installed in the control line compartment 4 and is electrically connected to the control line.

[0030] A cable outlet compartment 7 is formed on the rear side of the cabinet 1. A secondary wiring plug 9 is fixed in the middle of the side of the cabinet 1 near the cable outlet compartment 7. The secondary wiring plug 9 is connected to the secondary cable and the secondary cable exits from the upper and lower parts of the cable outlet compartment 7.

[0031] The outgoing cable compartment 7 is equipped with an N-line busbar 6 on the side near the middle of the cabinet 1, and a common grounding busbar 8 is fixed on the bottom of the outgoing cable compartment 7 away from the middle of the cabinet 1. The common grounding busbar 8 is electrically connected to the N-line busbar 6.

[0032] Based on the above structure, during installation, the primary wire is threaded through the inlet compartment 10 and electrically connected to the primary wiring plug 11; the secondary wire is threaded through the upper or lower part of the outlet compartment 7 and electrically connected to the secondary wiring plug 9; the control wire is threaded through the control wire compartment 4 and electrically connected to the control wire plug 12; and the neutral (N) wire is connected between the N busbar 6 and the common grounding busbar 8. This achieves separate routing of the primary, secondary, control, and neutral wires, forming a separate wiring pattern. The shared central inlet compartment 10 between the two drawer units 2 effectively saves cabinet space, increases the layout density of the drawer units 2, and relatively increases the wiring space of the outlet compartment 7, facilitating maintenance and modification. Setting the control wire in the independent control wire compartment 4 facilitates the installation of intelligent modules and provides convenience for subsequent functional upgrades. In addition, after the compartment wiring is completed, all operations, monitoring, and control can be completed on the front side of the cabinet, making operation more convenient.

[0033] Furthermore, a busbar compartment 3 is formed on the top of the cabinet 1. The lower end of the busbar compartment 3 is connected to the incoming line compartment 10. A common busbar 5 is fixed inside the busbar compartment 3. The common busbar 5 is electrically connected to the primary line.

[0034] Setting up busbar compartment 3 and common busbar 5 facilitates the access of external lines and the connection of external lines to the primary line.

[0035] Furthermore, the exit module 7 and the incoming module 10, the incoming module 10 and the control module 4, the control module 4 and the busbar module 3, and the exit module 7 and the busbar module 3 are all separated by bulkheads, which completely isolates each module from the others and can greatly reduce the risk of accidents.

[0036] Furthermore, the secondary wiring plug 9 is located on the rear side of the incoming line compartment 10, and the secondary wiring plug 9 is exposed on the front side of the outgoing line compartment 7.

[0037] Furthermore, drawer compartments are formed on the left and right sides of the front of the cabinet 1. The secondary wiring plug 9, the primary wiring plug 11, and the control line plug 12 all extend into the drawer compartments. The drawer unit 2 moves into the drawer compartment from the front.

[0038] The drawer compartment is equipped with a drive mechanism for moving the drawer unit 2 left and right, and forward and backward. The drawer compartment is also equipped with a locking mechanism for limiting the drawer unit 2.

[0039] Furthermore, the motherboard compartment 3, control line compartment 4, and outgoing line compartment 7 are all equipped with independent doors, which facilitates installation and maintenance operations that allow for single-compartment closure and single-compartment operation.

[0040] The working principle of this utility model is as follows: Before installation, the primary line needs to be threaded through the inlet compartment 10 and electrically connected to the primary wiring plug 11. The neutral (N) line is connected between the N busbar 6 and the common grounding busbar 8. During installation, the external access line is first threaded into the busbar compartment 3 and connected to the primary line through the common busbar 5. The secondary line is threaded through the upper or lower part of the outlet compartment 7 and electrically connected to the secondary wiring plug 9. The control line is threaded through the control line compartment 4 and electrically connected to the control line plug 12. This achieves separate routing of the primary line, secondary line, control line, and neutral (N) line, forming a separate wiring pattern. The shared inlet compartment 10 between the two drawer units 2 effectively saves cabinet space, increases the arrangement density of the drawer units 2, and relatively increases the wiring space of the outlet compartment 7, facilitating maintenance and modification. Setting the control line in the independent control line compartment 4 facilitates the installation of intelligent modules and provides convenience for subsequent functional upgrades. In addition, after the compartment wiring is completed, all operations, monitoring, and control can be completed on the front side of the cabinet, making operation more convenient.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shared-compartment drawer-type low-voltage distribution cabinet, comprising a cabinet body (1) and drawer units (2) slidably installed within the cabinet body (1), wherein two sets of drawer units (2) are arranged symmetrically along the middle of the cabinet body (1), and the drawer units (2) are capable of sliding forward and backward and left and right in the horizontal direction, characterized in that: The cabinet (1) has a vertically formed cable inlet compartment (10) in the middle, and a primary wiring plug (11) is installed in the cable inlet compartment (10). The primary wiring plug (11) is electrically connected to the primary line. A control line compartment (4) is formed on the front side of the middle part of the cabinet (1). A control line plug (12) is installed in the control line compartment (4). The control line plug (12) is electrically connected to the control line. A cable outlet compartment (7) is formed on the rear side of the cabinet (1). A secondary wiring plug (9) is fixed in the middle of the side of the cabinet (1) near the cable outlet compartment (7). The secondary wiring plug (9) is connected to the secondary wire, and the secondary wire is discharged from the upper and lower parts of the cable outlet compartment (7). The outgoing cable compartment (7) is provided with an N-line busbar (6) on the side near the middle of the cabinet (1). A common grounding busbar (8) is fixed on the bottom of the outgoing cable compartment (7) away from the middle of the cabinet (1). The common grounding busbar (8) is electrically connected to the N-line busbar (6).

2. The shared-compartment drawer-type low-voltage distribution cabinet according to claim 1, characterized in that: The top of the cabinet (1) has a busbar compartment (3), the lower end of the busbar compartment (3) is connected to the incoming line compartment (10), a common busbar (5) is fixed inside the busbar compartment (3), and the common busbar (5) is electrically connected to the primary line.

3. The shared-compartment drawer-type low-voltage distribution cabinet according to claim 2, characterized in that: The outlet compartment (7) and the inlet compartment (10), the inlet compartment (10) and the control compartment (4), the control compartment (4) and the busbar compartment (3), and the outlet compartment (7) and the busbar compartment (3) are all separated by partitions.

4. The shared-compartment drawer-type low-voltage distribution cabinet according to claim 3, characterized in that: The secondary wiring plug (9) is located on the rear side of the incoming line compartment (10), and the secondary wiring plug (9) is exposed on the front side of the outgoing line compartment (7).

5. The shared-compartment drawer-type low-voltage distribution cabinet according to claim 1, characterized in that: The cabinet (1) has drawer compartments on the left and right sides of the front. The secondary wiring plug (9), primary wiring plug (11), and control line plug (12) all extend into the drawer compartments. The drawer unit (2) moves into the drawer compartment from the front. The drawer compartment is equipped with a drive mechanism for moving the drawer unit (2) left and right and back and forth, and a locking mechanism for limiting the drawer unit (2) is also installed in the drawer compartment.

6. The shared-compartment drawer-type low-voltage distribution cabinet according to any one of claims 2-4, characterized in that: The motherboard compartment (3), control line compartment (4), and outgoing line compartment (7) are all equipped with independent doors.

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