Low-voltage switch cabinet with integrated zero line bar and ground line bar

Abstract

A bottom plate comprises a front bottom plate and a rear bottom plate, a cable outlet cover plate is fixed at the position of the rear bottom plate, a plurality of wire passing holes used for wire outgoing are arranged on the cable outlet cover plate, zero and ground bar mounting supports are respectively fixed on two upright column vertical beams close to the position of the rear bottom plate, and the zero and ground bar mounting supports are fixed on two upright column vertical beams close to the position of the rear bottom plate. The zero row and the ground row are both fixedly installed on the zero-ground row installation support, the zero-ground row installation support comprises a base plate, a vertical beam connecting plate, a zero row installation lug plate and a ground row installation lug plate, one side of the base plate is bent outwards to form the vertical beam connecting plate, and the other side of the base plate is bent inwards to form the zero row installation lug plate and the ground row installation lug plate. The vertical beam connecting plate, the zero row installation lug plate and the ground row installation lug plate are parallel, and the zero row installation lug plate protrudes forwards by a certain distance compared with the ground row installation lug plate. According to the low-voltage switch cabinet, the space occupied by the zero line bar and the ground line bar distributed in the cabinet body can be reduced, and interference between the outgoing cable and the zero line bar and the ground line bar can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage power transmission and distribution cabinet technology, specifically to a low-voltage switch cabinet with the neutral busbar and ground busbar installed in an integrated manner. Background Technology

[0002] With market development, low-voltage switchgear has been widely adopted. Low-voltage switchgear comes in various sizes and specifications. The size and specifications of low-voltage switchgear are usually determined by the number and size of the internal electrical distribution equipment. Existing low-voltage switchgear has separate installation of neutral and ground busbars, which occupies a large space inside the cabinet, and the outgoing cables often conflict with the neutral and ground busbars at the bottom of the cabinet, preventing them from exiting. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a low-voltage switch cabinet with the neutral busbar and ground busbar installed in one piece, which reduces the space occupied by the neutral busbar and ground busbar in the cabinet and can avoid interference between the outgoing cables and the neutral busbar and ground busbar.

[0004] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0005] A low-voltage switchgear with an integrated neutral and ground busbar includes vertical columns and beams located at the four corners of a cuboid and a base plate fixed to the bottom. The base plate includes a front base plate and a rear base plate. A cable outlet cover is fixed to the rear base plate, and the cable outlet cover is provided with several through holes for cable outlet. The switchgear is characterized by:

[0006] Two vertical columns near the rear base plate are respectively fixed with zero-ground row mounting brackets, and both the zero row and the ground row are fixedly installed on the zero-ground row mounting brackets.

[0007] The zero-row ground row mounting bracket includes a base plate, a vertical beam connecting plate, a zero-row mounting ear plate, and a ground row mounting ear plate. One side of the base plate is bent outward to form the vertical beam connecting plate, and the other side of the base plate is bent inward to form the zero-row mounting ear plate and the ground row mounting ear plate. The vertical beam connecting plate, the zero-row mounting ear plate, and the ground row mounting ear plate are parallel. The zero-row mounting ear plate protrudes forward by a certain distance compared to the ground row mounting ear plate. The vertical beam connecting plate has multiple first mounting holes, the ground row mounting ear plate has second mounting holes, and the zero-row mounting ear plate has third mounting holes.

[0008] Preferably, the zero-row mounting ear plate includes a first zero-row mounting ear plate and a second zero-row mounting ear plate arranged at intervals, with the first zero-row mounting ear plate and the second zero-row mounting ear plate respectively disposed on both sides of the ground row mounting ear plate.

[0009] Preferably, the first mounting hole is a first circular hole for mounting bolts and nuts.

[0010] Preferably, the second mounting hole includes a first elongated hole, a second elongated hole, and a second circular hole, with the second circular hole located between the first elongated hole and the second elongated hole.

[0011] Preferably, the third mounting hole is an oblong hole.

[0012] Preferably, the zero-ground busbar mounting bracket is fixed to the vertical beam of the column by bolts and nuts, and zero wire clamps are fixed at both ends of the zero busbar. The zero wire clamps are fixed to the zero busbar mounting ear plate by bolts and nuts, and the ground busbar is fixed to the ground busbar mounting ear plate by bolts and nuts.

[0013] Preferably, the cable outlet cover is provided with a plurality of knock-out holes, which knock off the adhesive portion to form the through hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model discloses a low-voltage switchgear with integrated neutral and ground busbars. Two vertical beams near the rear base plate are respectively fixed with neutral and ground busbar mounting brackets. Both the neutral and ground busbars are fixedly mounted on these brackets. Therefore, the neutral and ground busbar mounting brackets simultaneously function as mounting points for both the neutral and ground busbars while maintaining safe electrical clearances.

[0016] The low-voltage switchgear with the neutral and ground busbars integrated in this invention maintains safe electrical clearances while reducing the space occupied by the neutral and ground busbars within the cabinet, and also avoids interference between the outgoing cables and the neutral and ground busbars. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a low-voltage switchgear with an integrated neutral busbar and ground busbar of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of a low-voltage switchgear with the neutral and ground busbars installed as a single unit, taken from another angle.

[0019] Figure 3 This is a partial structural diagram of the ground busbar mounting bracket installed on a low-voltage switchgear.

[0020] Figure 4 This is a structural diagram of the zero-ground mounting bracket;

[0021] Figure 5 This is a structural diagram of the zero-ground mounting bracket from another angle;

[0022] In the diagram: 101, First column vertical beam; 102, Second column vertical beam; 103, Third column vertical beam; 104, Fourth column vertical beam; 201, Front base plate; 202, Rear base plate; 203, Cable outlet cover plate; 2031, Through hole; 3, Neutral / Ground busbar mounting bracket; 301, Base plate; 302, Vertical beam connecting plate; 3021, First mounting hole; 303, Neutral busbar mounting ear plate; 303a, First neutral busbar mounting ear plate; 303b, Second neutral busbar mounting ear plate; 3021, First mounting hole; 3031, Third mounting hole; 304, Ground busbar mounting ear plate; 4, Neutral busbar; 5, Ground busbar; 3041, First oblong hole; 3042, Second oblong hole; 3043, Second round hole; 6, Neutral wire clamp. Detailed Implementation

[0023] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of this utility model, but it is not intended to limit the scope of protection of the appended claims of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0025] Furthermore, although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used in this document do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0026] like Figures 1 to 3 The low-voltage switchgear shown includes vertical columns and beams located at the four corners of a cuboid and a base plate fixed to the bottom. The four vertical columns and beams are designated as first vertical column 101, second vertical column 102, third vertical column 103, and fourth vertical column 104.

[0027] The base plate includes a front base plate 201 and a rear base plate 202. A cable outlet cover 203 is fixed at the rear base plate 202. The cable outlet cover 203 is provided with several through holes 2031 for cable outlet.

[0028] Two zero-ground row mounting brackets 3 are fixed to the two vertical beams near the rear base plate 202. That is, zero-ground row mounting brackets 3 are fixed to the first vertical beam 101 and the second vertical beam 102. Zero row 4 and ground row 5 are both fixedly installed on the zero-ground row mounting brackets 3.

[0029] like Figure 4 and Figure 5 As shown, the zero-to-ground busbar mounting bracket 3 includes a base plate 301, a vertical beam connecting plate 302, a zero-to-ground busbar mounting ear plate 303, and a ground busbar mounting ear plate 304. One side of the base plate 301 is bent outward to form the vertical beam connecting plate 302, and the other side of the base plate 301 is bent inward to form the zero-to-ground busbar mounting ear plate 303 and the ground busbar mounting ear plate 304. The vertical beam connecting plate 302, the zero-to-ground busbar mounting ear plate 303, and the ground busbar mounting ear plate 304 are parallel. The zero-to-ground busbar mounting ear plate 303 protrudes forward by a certain distance compared to the ground busbar mounting ear plate 304 to ensure a safe electrical clearance between the zero-to-ground busbar and the ground busbar during installation.

[0030] The vertical beam connecting plate 302 has multiple first mounting holes 3021, the ground row mounting ear plate 304 has second mounting holes, and the zero row mounting ear plate 303 has a third mounting hole 3031.

[0031] like Figure 4 and Figure 5 As shown, the zero-row mounting ear plate 303 includes a first zero-row mounting ear plate 303a and a second zero-row mounting ear plate 303b spaced apart, with the first zero-row mounting ear plate 303a and the second zero-row mounting ear plate 303b respectively disposed on both sides of the ground row mounting ear plate 304. The first mounting hole 3021 is a first round hole for mounting bolts and nuts.

[0032] The second mounting hole includes a first elongated hole 3041, a second elongated hole 3042, and a second circular hole 3043, with the second circular hole 3043 located between the first elongated hole 3041 and the second elongated hole 3042. The third mounting hole 3031 is an elongated hole.

[0033] When installing a small-sized floor drain, the bolt and nut can be installed in the second round hole 3043 to secure the floor drain. When installing a large-sized floor drain, the bolt and nut can be installed in the first oblong hole 3041 and the second oblong hole 3042 to secure the floor drain.

[0034] The zero-ground row mounting bracket 3 is fixed to the first column vertical beam 101 and the second column vertical beam 102 by bolts and nuts. The two ends of the zero row 4 are fixed with zero wire clamps 6. The zero wire clamps 6 are fixed to the zero row mounting ear plate 303 by bolts and nuts. The ground row 5 is fixed to the ground row mounting ear plate 304 by bolts and nuts.

[0035] The neutral and ground busbar mounting bracket 3 can simultaneously install neutral and ground busbars and maintain a safe electrical clearance. After the application of the neutral and ground busbar mounting bracket 3, the low-voltage switchgear is assembled into a low-voltage switchgear with the neutral and ground busbars installed in one piece. This reduces the space occupied by the neutral and ground busbars in the cabinet. Furthermore, the neutral and ground busbars are not directly above the through hole 2031, which can avoid interference between the outgoing cables and the neutral and ground busbars.

[0036] like Figure 1 and Figure 2 As shown, the cable outlet cover plate is provided with several knock-out holes, which break off the adhesive parts to form through holes 2031.

[0037] The low-voltage switchgear with the neutral and ground busbars integrated in this invention maintains safe electrical clearances while reducing the space occupied by the neutral and ground busbars within the cabinet, and also avoids interference between the outgoing cables and the neutral and ground busbars.

[0038] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A low-voltage switchgear with an integrated neutral and ground busbar, comprising uprights at the four corners of a cuboid and a base plate fixed to the bottom, the base plate comprising a front base plate and a rear base plate, wherein a cable outlet cover is fixed to the rear base plate, and the cable outlet cover is provided with a plurality of through holes for cable outlet, characterized in that: Two vertical columns near the rear base plate are respectively fixed with zero-ground row mounting brackets, and both the zero row and the ground row are fixedly installed on the zero-ground row mounting brackets. The zero-row ground row mounting bracket includes a base plate, a vertical beam connecting plate, a zero-row mounting ear plate, and a ground row mounting ear plate. One side of the base plate is bent outward to form the vertical beam connecting plate, and the other side of the base plate is bent inward to form the zero-row mounting ear plate and the ground row mounting ear plate. The vertical beam connecting plate, the zero-row mounting ear plate, and the ground row mounting ear plate are parallel. The zero-row mounting ear plate protrudes forward by a certain distance compared to the ground row mounting ear plate. The vertical beam connecting plate has multiple first mounting holes, the ground row mounting ear plate has second mounting holes, and the zero-row mounting ear plate has third mounting holes.

2. The low-voltage switchgear of claim 1, wherein, The zero-row mounting ear plate includes a first zero-row mounting ear plate and a second zero-row mounting ear plate arranged at intervals, with the first zero-row mounting ear plate and the second zero-row mounting ear plate respectively disposed on both sides of the ground row mounting ear plate.

3. The low-voltage switchgear of claim 2, wherein the zero line and ground line integrated mounting structure is characterized by, The first mounting hole is a first round hole for mounting bolts and nuts.

4. The low-voltage switchgear of claim 3, wherein the zero line and ground line integrated mounting structure is characterized by, The second mounting hole includes a first elongated hole, a second elongated hole, and a second circular hole, with the second circular hole located between the first elongated hole and the second elongated hole.

5. The low voltage switchgear of claim 4, wherein, The third mounting hole is an oblong hole.

6. The low voltage switchgear of claim 5, wherein, The zero-ground busbar mounting bracket is fixed to the vertical beam of the column by bolts and nuts. Zero wire clamps are fixed at both ends of the zero busbar. The zero wire clamps are fixed to the zero busbar mounting ear plate by bolts and nuts. The ground busbar is fixed to the ground busbar mounting ear plate by bolts and nuts.

7. The low voltage switchgear of claim 1, wherein, The cable outlet cover plate is provided with several knockout holes, which break off the adhesive parts to form the through hole.

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