CN117374761A

CN117374761A - Low-voltage switch cabinet

Info

Publication number: CN117374761A
Application number: CN202311201585.9A
Authority: CN
Inventors: 缪新招; 邓丽文; 张攀; 董选昌; 谢志炜; 林镜星; 黄希锋; 周文锴; 谭东; 陈卓尔
Original assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2023-09-15
Filing date: 2023-09-15
Publication date: 2024-01-09

Abstract

The invention discloses a low-voltage switch cabinet, which relates to the technical field of switch cabinets and comprises a box body, wherein a stand column and a side beam are arranged in the box body, the stand column is positioned at the periphery of the box body, the side beam is arranged at two opposite sides of the box body, an installation beam is arranged between two opposite side beams, an adjusting block is arranged between the side beam and the installation beam, the adjusting block is provided with an adjusting block which is respectively coated at the outer sides of the side beam and the installation beam, and a plurality of connecting holes are formed in the side beam so as to realize the adjustment of the installation position of the installation beam along the horizontal direction, so as to adapt to the actual size of a copper bar, improve the installation efficiency and realize the fixation through the adjusting block; the box is equipped with two of back-to-back connection at least, is equipped with the connecting block between two boxes, is equipped with the spread groove on the connecting block, and the stand that is arranged in two boxes respectively inlays and locates the spread groove, realizes the stand in the box of back-to-back cabinet setting and hugs closely each other and install, realizes the cabinet connection of combining of two adjacent boxes when avoiding punching and influencing the protectiveness of box.

Description

Low-voltage switch cabinet

Technical Field

The invention relates to the technical field of switch cabinets, in particular to a low-voltage switch cabinet.

Background

In power distribution system, the cubical switchboard includes high-voltage board and low-voltage board, and general power supply bureau, transformer station are all with high-voltage board, then step down through the transformer and then reach low-voltage board, and low-voltage board reaches the block terminal of each power consumption again, and the C section bar frame of present cubical switchboard wide application, however the exposure face of four stands of cubical switchboard is because there is the protection level requirement, does not allow the trompil, when two cubical switchboard back to back and cabinet connection, is difficult to fix, installs the connecting block then can increase area between two cabinets, leads to the compactibility of cubical switchboard lower.

On the other hand, the installation beam of installing the plastic shell switch in the electric cabinet is mostly fixed by adopting screws, after elements such as the plastic shell switch and the isolation knife switch are installed, the pre-designed copper bar is installed to be connected with all the electric elements, and at present, a certain horizontal distance is reserved between the plastic shell switch and the isolation knife switch due to the requirement of compact arrangement of the electric elements in the electric cabinet, however, the situation that the installation gap is overlarge or too small is often caused when the copper bar used for connecting the plastic shell switch and the isolation knife switch is finally installed due to the installation error or the manufacturing error of the copper bar, at the moment, the copper bar is required to be reworked to adjust the size or the position of the installation beam is required to be detached for adjusting the plastic shell switch, the installation is inconvenient, and the operation efficiency is affected.

Disclosure of Invention

The invention aims to at least solve one of the technical problems in the prior art, and provides a low-voltage switch cabinet which is connected without holes and is flexible in adjustment of copper bar installation, improves the installation efficiency and improves the space compactness of the internal and external arrangement of an electric cabinet.

According to an embodiment of the present invention, there is provided a low-voltage switchgear including:

the box body is provided with upright posts and side beams, the upright posts are positioned at the periphery of the box body, the side beams are arranged at two opposite sides of the box body, a mounting beam is arranged between the two opposite side beams, an adjusting block is arranged between the side beams and the mounting beam, the adjusting block is provided with adjusting blocks respectively coated on the outer sides of the side beams and the mounting beam, and a plurality of connecting holes are formed in the side beams so as to adjust the mounting position of the mounting beam along the horizontal direction;

the box is equipped with two of back-to-back connection at least, is equipped with the connecting block between two boxes, is equipped with two at least sunken spread grooves on the connecting block, and the stand that is arranged in two boxes respectively inlays and locates the spread groove, realizes the stand in two boxes and hugs closely each other and install.

The low-voltage switch cabinet has at least the following beneficial effects: the embodiment is provided with a box body, wherein the box body is internally provided with upright posts and side beams, the upright posts are positioned at the periphery of the box body, the side beams are arranged at two opposite sides of the box body, a mounting beam is arranged between the two opposite side beams, an adjusting block is arranged between the side beams and the mounting beam, the adjusting block is provided with adjusting blocks respectively coated on the outer sides of the side beams and the mounting beam, a plurality of connecting holes are formed in the side beams so as to realize the mounting position of the mounting beam along the horizontal direction, the flexible mounting of the mounting beam is realized, the actual size of a copper bar is adapted, the adjusting time during mounting is reduced so as to improve the mounting efficiency, and the fixing between the side beams and the mounting beam is realized through the adjusting block; the box is equipped with two of back-to-back connection at least, is equipped with the connecting block between two boxes, is equipped with two at least sunken spread grooves on the connecting block, and the stand that is arranged in two boxes respectively inlays and locates the spread groove, realizes the mutual installation of hugging closely of stand in the box that back-to-back cabinet set up, need not to wear to establish the bolt between two stands, realizes the cabinet connection of combining of two adjacent boxes when avoiding punching and influencing the protectiveness of box.

According to the low-voltage switch cabinet disclosed by the invention, the upright post is a C-shaped material with an opening at one side, at least two separation parts capable of being embedded in the opening are arranged in the connecting block, and the separation parts are positioned between two adjacent connecting grooves.

According to the low-voltage switch cabinet disclosed by the invention, the clamping parts coated on the outer sides of the upright posts are arranged in the connecting blocks, and the clamping parts and the separating parts are respectively positioned on two sides of the connecting grooves.

According to the low-voltage switch cabinet disclosed by the invention, the connecting block is of a hollow structure, and the connecting block is provided with the reinforcing ribs extending along the thickness direction.

According to the low-voltage switch cabinet disclosed by the invention, the upright post is at least provided with one non-perforated side plane, the side planes are positioned on the outer sides of the box bodies along the width direction, and the side planes positioned on the upright posts between two different box bodies are mutually clung.

According to the low-voltage switch cabinet disclosed by the invention, the adjusting block is provided with the connecting parts which are mutually perpendicular, and the connecting parts are provided with the C-shaped cross sections.

According to the low-voltage switch cabinet disclosed by the invention, the connecting part is provided with the coating part and the supporting part, the coating part is respectively positioned on the upper surfaces of the side beam and the mounting beam, and the supporting part is positioned on the other side opposite to the coating part.

According to the low-voltage switch cabinet disclosed by the invention, the cladding part is provided with the limiting part, and the limiting part extends downwards along the edge of the cladding part.

According to the low-voltage switch cabinet disclosed by the invention, the side beams and the mounting beams are C-shaped materials provided with the openings, and the side walls of the adjusting blocks are provided with the bosses which can be embedded in the openings.

According to the low-voltage switch cabinet disclosed by the invention, the box body is provided with the isolating switch positioned at the upper part of the mounting beam, the mounting beam is provided with the plurality of plastic shell switches, copper bars which are communicated with the isolating switch and the plastic shell switches are arranged between the isolating switch and the plastic shell switches, and the copper bars extend along the horizontal direction.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described below with reference to the drawings and examples;

FIG. 1 is an isometric view of a low voltage switchgear in an embodiment of the present invention;

FIG. 2 is an isometric view of an adjustment block in an embodiment of the invention;

FIG. 3 is a side view of an adjustment block in an embodiment of the invention;

FIG. 4 is a top view of a four-box side-by-side connection in an embodiment of the invention;

FIG. 5 is a schematic view of the fixing between the four posts of FIG. 4;

fig. 6 is a schematic diagram of installation of a connection block in which two boxes are connected back-to-back and cabinet-to-cabinet in an embodiment of the present invention.

Reference numerals:

a case 100; a column 101; a side member 102; a mounting beam 103; a connection hole 104; an opening 105; a side plane 106; an isolation switch 107; a molded case switch 108; copper bars 109;

a connection block 110; a partition 111; a connection groove 112; a clamping portion 113; a reinforcing rib 114;

an adjustment block 120; a connection portion 121; a coating portion 122; a support 123; a stopper 124; boss 125.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.

In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 6, an embodiment of the present invention provides a low voltage switchgear, including a box 100, in which a column 101 and a side beam 102 are disposed in the box 100, the column 101 is located around the box 100, the side beams 102 are disposed on opposite sides of the box 100, two ends of the side beams 102 are connected to the column 101, a mounting beam 103 is disposed between two opposite side beams 102, a plurality of side-by-side plastic case switches 108 are mounted on the mounting beam 103, optionally, at least two mounting beams 103 are disposed along a height direction, and upper and lower ends of the plastic case switches 108 are respectively connected to the two mounting beams 103 to ensure connection stability of the plastic case switches 108. Optionally, the box 100 is provided with a disconnecting switch 107 located at the upper part of the mounting beam 103, the mounting beam 103 is provided with a plurality of molded case switches 108, a copper bar 109 communicating the disconnecting switch 107 and the molded case switches 108 is arranged between the disconnecting switch 107 and the molded case switches 108, the copper bar 109 extends along the horizontal direction, and specifically, the disconnecting switch 107 is located above the back of the molded case switches 108. Optionally, the side beam 102 is provided with a plurality of connecting holes 104 to adjust the mounting position of the mounting beam 103 along the horizontal direction, so as to flexibly mount the mounting beam 103, adapt to the actual size of the copper bar 109, reduce the adjustment time during mounting, improve the mounting efficiency, and facilitate the compact arrangement of the electrical components in the box 100. Optionally, the connecting hole 104 is a threaded hole, so that the bolt can be directly installed, and convenience is improved.

Optionally, an adjusting block 120 is disposed between the side beam 102 and the mounting beam 103, the adjusting block 120 having a connecting portion 121 perpendicular to each other, the connecting portion 121 having a C-shaped cross section to cover the side walls of the side beam 102 and the mounting beam 103, the two connecting portions 121 being connected to the side walls of the side beam 102 and the mounting beam 103, respectively. Specifically, the connecting portions 121 are each provided with a cladding portion 122 and a supporting portion 123, the cladding portions 122 are located on the upper surfaces of the side members 102 and the mounting beam 103, respectively, and the supporting portions 123 are located on the other side opposite to the cladding portions 122, that is, on the lower surfaces of the side members 102 and the mounting beam 103, so as to achieve convenient positioning during mounting. Optionally, a plurality of slots for inserting bolts are provided on the covering portion 122. Optionally, the wrapping portion 122 is provided with a limiting portion 124, and the limiting portion 124 extends downward along an edge of the wrapping portion 122, so as to avoid the adjusting block 120 from being separated from the mounting beam 103 or the side beam 102 when the position of the mounting beam 103 is adjusted by loosening the bolt, which is beneficial to improving convenience of adjustment operation. Alternatively, both the side beam 102 and the mounting beam 103 are C-shaped with an opening 105, and the side wall of the adjustment block 120 is provided with a boss 125 that can be inserted into the opening 105 to facilitate further positioning and to help increase the structural rigidity of the end of the mounting beam 103 after the locking bolt.

Referring to fig. 4, the case 100 is provided with at least two back-to-back connections, a connection block 110 is provided between the two cases 100, a receiving groove is provided on the connection block 110, and the receiving groove simultaneously receives the two columns 101, so that the columns 101 in the adjacent cases 100 are mounted in a mutually-clinging manner, bolts do not need to be inserted between the two columns 101, and the parallel cabinet connection of the two adjacent cases 100 is realized while the protection of the case 100 is prevented from being affected by punching. Specifically, referring to fig. 5 and 6, the upright 101 is a C-shaped material with an opening 105 at one side, the connecting block 110 is provided with at least two separating parts 111 which can be embedded in the opening 105, the separating parts 111 divide the accommodating groove into a plurality of connecting grooves 112, and the separating parts 111 are embedded in the opening 105 to realize positioning during installation; further, the connecting block 110 is provided with a clamping part 113 coated on the outer side of the upright post 101, the clamping part 113 and the partition part 111 enclose a connecting groove 112, and when in installation and fixation, the two upright posts 101 are simultaneously clamped through the connecting groove 112, so that the back-to-back cabinet-to-cabinet connection of the two boxes 100 is realized. Optionally, the upright 101 is provided with at least one non-perforated side plane 106, the side plane 106 is located at the outer side of the box 100 along the width direction, and when two boxes 100 are connected back to back and cabinet by cabinet, the side planes 106 on the upright 101 respectively located between two different boxes 100 are mutually clung. Alternatively, the cabinet combining connection includes connection between two adjacent boxes 100, referring to fig. 5, the side combining is performed while the two boxes 100 are combined back to back, and the two sides of the upright post 101 of the two adjacent boxes 100 may be provided with the connection blocks 110, so that four boxes 100 may be fixed simultaneously, and the structure is simple and the installation is convenient. Optionally, the connection block 110 is in a hollow structure, the connection block 110 is provided with a reinforcing rib 114 extending along the thickness direction, and the connection block 110 is preferably an extruded profile, and is light and firm.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A low voltage switchgear comprising:

the box body is provided with upright posts and side beams, the upright posts are positioned on the periphery of the box body, the side beams are arranged on two opposite sides of the box body, an installation beam is arranged between the two opposite side beams, an adjusting block is arranged between the side beams and the installation beam, the adjusting block is provided with adjusting blocks respectively coated on the outer sides of the side beams and the installation beam, and a plurality of connecting holes are formed in the side beams so as to adjust the installation position of the installation beam along the horizontal direction;

the box is equipped with two of back-to-back connection at least, two be equipped with the connecting block between the box, be equipped with two at least sunken spread grooves on the connecting block, be located respectively two the stand in the box is inlayed and is located in the spread groove realizes two stand in the box is hugged closely each other and is installed.

2. A low voltage switchgear as claimed in claim 1, wherein: the upright post is a C-shaped material with an opening at one side, at least two separation parts capable of being embedded in the opening are arranged in the connecting block, and the separation parts are arranged between two adjacent connecting grooves.

3. A low voltage switchgear as claimed in claim 2, wherein: the connecting block is internally provided with a clamping part which is coated on the outer side of the upright post, and the clamping part and the separation part are respectively positioned on two sides of the connecting groove.

4. A low voltage switchgear as claimed in claim 1, wherein: the connecting block is hollow structure, be equipped with the strengthening rib that extends along thickness direction on the connecting block.

5. A low voltage switchgear as claimed in claim 1, wherein: the upright post is at least provided with a side plane which is not provided with a hole, the side plane is positioned at the outer side of the box body along the width direction, and the side planes on the upright post which are respectively positioned between two different box bodies are mutually clung.

6. A low voltage switchgear as claimed in claim 2, wherein: the adjusting block is provided with connecting parts which are mutually perpendicular, and the connecting parts are provided with C-shaped cross sections.

7. A low voltage switchgear as claimed in claim 6, wherein: the connecting portion is provided with a cladding portion and a supporting portion, the cladding portion is respectively located on the upper surfaces of the side beams and the mounting beams, and the supporting portion is located on the other side opposite to the cladding portion.

8. A low voltage switchgear as claimed in claim 7, wherein: the cladding portion is provided with a limiting portion, and the limiting portion extends downwards along the edge of the cladding portion.

9. A low voltage switchgear as claimed in claim 6, wherein: the side beams and the mounting beams are C-shaped sections provided with openings, and the side walls of the adjusting blocks are provided with bosses which can be embedded in the openings.

10. A low voltage switchgear as claimed in claim 1, wherein: the box is equipped with and is located the isolator on installation roof beam upper portion, the installation roof beam has installed a plurality of and has moulded the shell switch, isolator with mould and be equipped with the copper bar of intercommunication both between the shell switch, the copper bar extends along the horizontal direction.