阅读说明：本技术 一种低压成套开关柜的柜顶结构 (Cabinet top structure of low-voltage complete switch cabinet ) 是由 凌永浩 邓玉全 李庭灏 陈良城 张宇怀 于 2020-04-30 设计创作，主要内容包括：本发明提供一种低压成套开关柜的柜顶结构,包括：一骨架横梁；柜顶前盖板,包括矩形的柜顶前盖板上和柜顶前盖板下,两板面上均开有若干排列整齐且长轴平行于板边沿的横向长腰孔,所述腰孔边沿设有单面凸台,柜顶前盖板上安装在柜顶前盖板下的上面,两者的横向长腰孔相互错开且单面凸台向上设置；柜顶后盖板,包括矩形的柜顶后盖板上和柜顶后盖板下,柜顶后盖板上安装在柜顶后盖板下的上面；所述的柜顶前盖板下、柜顶后盖板下对接式安装在骨架横梁上；防水密封胶条,其设置在柜顶前盖板下、柜顶后盖板下与骨架横梁的连接处。本发明结构装置能实现通风散热防水,易拆卸安装。(The invention provides a cabinet top structure of a low-voltage complete switch cabinet, which comprises: a framework beam; the cabinet top front cover plate comprises a rectangular cabinet top front cover plate upper part and a rectangular cabinet top front cover plate lower part, wherein a plurality of transverse long waist holes which are orderly arranged and have long axes parallel to the plate edges are formed in the two plate surfaces, single-side bosses are arranged at the edge of each waist hole, the cabinet top front cover plate is installed on the upper surface of the cabinet top front cover plate lower part, the transverse long waist holes of the two transverse long waist holes are staggered, and the single-side bosses are arranged upwards; the cabinet top rear cover plate comprises a rectangular cabinet top rear cover plate upper part and a rectangular cabinet top rear cover plate lower part, and the cabinet top rear cover plate upper part is arranged on the upper surface of the cabinet top rear cover plate lower part; the lower part of the front cover plate of the cabinet top and the lower part of the rear cover plate of the cabinet top are installed on the framework cross beam in a butt joint mode; and the waterproof sealing rubber strip is arranged at the joint of the lower part of the front cover plate of the cabinet top and the lower part of the rear cover plate of the cabinet top and the framework cross beam. The structural device can realize ventilation, heat dissipation and water resistance and is easy to disassemble and assemble.)

1. The utility model provides a cabinet top structure of low pressure complete set cubical switchboard, characterized by includes:

a framework beam (1);

the cabinet top front cover plate comprises a rectangular cabinet top front cover plate upper part (2) and a rectangular cabinet top front cover plate lower part (3), wherein a plurality of transverse long waist holes (9) which are orderly arranged and have long axes parallel to the plate edges are formed in the two plate surfaces, a single-side boss is arranged at the edge of each waist hole (9), the cabinet top front cover plate upper part (2) is installed on the cabinet top front cover plate lower part (3), the transverse long waist holes (9) of the cabinet top front cover plate upper part and the transverse long waist holes of the cabinet top front cover plate lower part are mutually staggered, and the single-;

the cabinet top rear cover plate comprises a rectangular cabinet top rear cover plate upper part (4) and a rectangular cabinet top rear cover plate lower part (5), and the cabinet top rear cover plate upper part (4) is arranged on the cabinet top rear cover plate lower part (5);

the lower part of the front cover plate of the cabinet top and the lower part of the rear cover plate of the cabinet top are installed on the framework beam (1) in a butt joint manner;

and the waterproof sealing rubber strip (6) is arranged at the joint of the lower part (3) of the front cover plate of the cabinet top, the lower part (5) of the rear cover plate of the cabinet top and the framework cross beam (1).

2. The top structure of the low-voltage complete switch cabinet as claimed in claim 1, wherein the top rear cover plate upper (4) and the top rear cover plate lower (5) of the top rear cover plate are both provided with a plurality of transverse long waist holes (9) which are orderly arranged and have long axes parallel to the plate edges, the edges of the waist holes (9) are provided with single-side bosses, and the transverse long waist holes (9) are mutually staggered up and down and are arranged upwards.

3. The top structure of the low-voltage complete switch cabinet as claimed in claim 1, wherein one side edge of the top cover plate (2) is fixed on the bottom (3) of the top cover plate by a connecting piece, the opposite side edge is pressed by one side edge of the anti-flash arc end plate (10) which is easy to deform under pressure, and the other side edge of the anti-flash arc end plate (10) is fixed on the upper surface of the bottom (3) of the top cover plate by a connecting piece.

4. The cabinet top structure of the low-voltage complete set switch cabinet according to any one of claims 1 to 3, characterized in that the two sides of the lower part (3) of the front cover plate of the cabinet top are provided with gaps (7) for hoisting; and a hoisting mounting hole (8) is formed below the cabinet top rear cover plate (5).

5. The top structure of the low-voltage complete switch cabinet as claimed in claim 4, wherein the hoisting gap (7) is sealed by arranging a hoisting ring hole cover plate (12) after the top installation of the cabinet is completed.

6. The cabinet top structure of the low-voltage complete switch cabinet as claimed in claim 5, wherein the framework cross beam (1) is provided with mounting holes, the lower portion (3) of the front cover plate of the cabinet top is provided with mounting holes matched with the mounting holes of the framework cross beam (1), and the mounting holes are fixed on the framework cross beam (1) through screws; and a mounting hole matched with the mounting hole of the framework cross beam (1) is formed in the lower part (5) of the cabinet top rear cover plate and is fixedly mounted on the framework cross beam (1) through a screw.

7. The cabinet top structure of the low-voltage complete switch cabinet as claimed in claim 1, wherein the lower part (3) of the cabinet top rear cover plate is provided with a wire inlet and outlet, and the upper part (2) of the cabinet top rear cover plate is provided with a wire inlet and outlet cover plate for covering the wire inlet and outlet.

Technical Field

The invention relates to a cabinet top structure of a low-voltage complete switch cabinet.

Background

A low-voltage complete switch cabinet is control equipment applied to the fields of industry, third industry, infrastructure and the like. The indoor air conditioner is widely applied to the industries such as subways, nuclear power, data centers and power grids, and the use of the indoor air conditioner determines that the indoor air conditioner is used indoors.

In the prior art, the low-voltage complete switch cabinet has a plurality of cabinet top structures with various characteristics, and can basically realize the respective proposed functions, but the multifunctional cabinet top structure to be carried has some contradictions which are difficult to solve, such as: the contradiction between structural water resistance and heat dissipation; the contradiction between structural water resistance and arc flash prevention and explosion pressure relief; the contradiction between the structural water resistance and the incoming and outgoing lines; the contradiction that the disassembly and the assembly of the lifting appliance and the top cover plate are restricted mutually; the risk contradiction between the overhead operation and the overweight and overlarge top cover plate is solved. One cabinet top structure can solve all the above contradiction problems, and has not been realized. In the prior art, in order to solve the problem of structural waterproofing, methods such as integrally sticking a waterproof adhesive tape and filling silica gel are often adopted. When the dismouting lamina tecti is maintained on the cabinet top, need paste waterproof adhesive tape again, fill out silica gel and just can realize waterproofly, and these auxiliary material of waterproof adhesive tape time of a specified duration, easily ageing, break and lead to waterproof inefficacy.

Receive reasons such as space, electric interval, the female installation that often can select cabinet body upper portion to arrange of the horizontal mother of low pressure complete switch cabinet, owing to need carry out the dismouting to horizontal female arranging in links such as cabinet combining, maintenance and dilatation, consequently put forward the requirement to the lightweight of cabinet top apron, and cabinet top apron fixed point also need be as few as possible, does benefit to and improves dismouting efficiency. The existing top cover plate structure with light weight, modularization and few fixed points is difficult to realize. At present, the top cover plate is generally designed into a whole in the industry, and a thicker iron plate is also selected as a material. This is contrary to the requirements for the roof panels described above. In a word, at present, the current situation of too big, overweight, the dismouting difficulty, the function singleness of low pressure complete switch cabinet top structural area can not satisfy the demand better.

Disclosure of Invention

The invention aims to solve the technical problem of providing a cabinet top structure of a low-voltage complete switch cabinet, which can realize the ventilation, heat dissipation and waterproof functions of the low-voltage complete switch cabinet, and simultaneously realize modularization of each part and easy disassembly and assembly.

To solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a cabinet top structure of low pressure complete set cubical switchboard which characterized in that includes:

a framework beam;

the cabinet top front cover plate comprises a rectangular cabinet top front cover plate upper part and a rectangular cabinet top front cover plate lower part, wherein a plurality of transverse long waist holes which are orderly arranged and have long axes parallel to the plate edges are formed in the two plate surfaces, single-side bosses are arranged at the edge of each waist hole, the cabinet top front cover plate is installed on the upper surface of the cabinet top front cover plate lower part, the transverse long waist holes of the two transverse long waist holes are staggered, and the single-side bosses are arranged upwards;

the cabinet top rear cover plate comprises a rectangular cabinet top rear cover plate upper part and a rectangular cabinet top rear cover plate lower part, and the cabinet top rear cover plate upper part is arranged on the upper surface of the cabinet top rear cover plate lower part;

the lower part of the front cover plate of the cabinet top and the lower part of the rear cover plate of the cabinet top are installed on the framework cross beam in a butt joint mode;

and the waterproof sealing rubber strip is arranged at the joint of the lower part of the front cover plate of the cabinet top and the lower part of the rear cover plate of the cabinet top and the framework cross beam.

The cabinet top structure of the low-voltage complete switch cabinet can be further improved as follows:

the cabinet top rear cover plate is characterized in that a plurality of transverse long waist holes which are orderly arranged and have long axes parallel to the plate edges are formed in the upper surface of the cabinet top rear cover plate and the lower surface of the cabinet top rear cover plate, single-side bosses are arranged on the edges of the waist holes, and the transverse long waist holes of the cabinet top rear cover plate are staggered from top to bottom and are arranged upwards.

One side edge of the cabinet top front cover plate is fixed on the cabinet top front cover plate through a connecting piece, the opposite other side edge is pressed through one side edge of the anti-flash arc end plate which is easy to deform under pressure, and the other side edge of the anti-flash arc end plate is fixed on the upper surface below the cabinet top front cover plate through a connecting piece. So make when the anti-flash-arc end plate atress warp the back, this side on the cabinet top front shroud that is pressed is struggled for getting off anti-flash-arc end plate and is tied up, realizes anti-flash-arc, explosion pressure release.

The cabinet top structure of the low-voltage complete switch cabinet can be further improved, and the lower two sides of the front cover plate of the cabinet top are provided with gaps for hoisting; and a lifting mounting hole is formed below the cabinet top rear cover plate.

Furthermore, the hoisting notch is positioned on the top of the cabinet and is sealed by arranging a hoisting ring hole cover plate after the installation is finished.

Furthermore, mounting holes are formed in the framework cross beam, mounting holes matched with the framework cross beam mounting holes are formed in the lower portion of the cabinet top front cover plate, and the cabinet top front cover plate is fixedly mounted on the framework cross beam through screws; and a mounting hole matched with the mounting hole of the framework cross beam is formed below the cabinet top rear cover plate and is fixedly arranged on the framework cross beam through a screw.

According to one embodiment of the structural device of the cabinet top of the low-voltage complete switch cabinet, the wire inlet and outlet are distributed under the cabinet top rear cover plate, and the wire inlet and outlet cover plate is arranged on the cabinet top rear cover plate and used for covering the wire inlet and outlet.

The invention has the following beneficial effects:

(1) according to the cabinet top structure of the low-voltage complete switch cabinet, the cabinet top cover plate is independently designed from front to back and is of a double-layer structure, the front cover plate and the rear cover plate of the cabinet top are arranged on the framework cross beam, and the upper-layer structure and the lower-layer structure are assembled and installed, so that modularization and easy disassembly and installation can be realized; meanwhile, the upper layer and the lower layer of the cabinet top cover plate are provided with the waist holes with large sizes, the waist holes of the upper layer and the lower layer of the cover plate are designed into a staggered structure, the periphery of each waist hole is provided with the convex edge, the ventilation and heat dissipation functions can be realized, the waist holes can be waterproof even if the cabinet top cover plate is opened, certain waterproof requirements can be met, the problem that water drips into the cabinet vertically is ingeniously solved, and the advantage is obvious.

(2) According to the invention, one side edge of the front cover plate of the cabinet top is pressed by the anti-flash end plate. When the anti-flash-arc end plate is stressed to deform, the side of the front cover plate of the cabinet top can be bound in a striving mode, and the anti-flash-arc and explosion pressure relief functions are achieved.

(3) The lower part of the cabinet top rear cover plate is provided with a wire inlet and outlet, and the wire inlet and outlet is covered by the wire inlet and outlet cover plate, so that the function of upper wire inlet and outlet is realized.

Drawings

The invention is described in further detail below with reference to the figures and the detailed description.

Fig. 1 is a schematic structural diagram of a cabinet top structure of a low-voltage switchgear assembly in embodiment 1 of the present invention;

fig. 2 is a left side view of a cabinet top structure of a low-voltage switchgear assembly according to embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of a cabinet top front cover plate of a cabinet top structure of a low-voltage complete switch cabinet according to embodiment 1 of the present invention;

fig. 4 is a front view of a cabinet top front cover plate of a cabinet top structure of a low-voltage complete switch cabinet according to embodiment 1 of the invention;

fig. 5 is a left side view of a cabinet top front cover plate of a cabinet top structure of a low-voltage complete switch cabinet according to embodiment 1 of the invention;

fig. 6 is a top view of a cabinet top front cover plate of a cabinet top structure of a low-voltage complete switch cabinet according to embodiment 1 of the present invention;

fig. 7 is a schematic structural diagram of the lower part of a cabinet top front cover plate of the cabinet top structure of the low-voltage complete switch cabinet in embodiment 1 of the invention;

fig. 8 is a front view of the cabinet top front cover plate of the cabinet top structure of the low-voltage complete switch cabinet according to embodiment 1 of the invention;

fig. 9 is a left side view of the cabinet top front cover plate of the cabinet top structure of the low-voltage complete switch cabinet according to embodiment 1 of the invention;

fig. 10 is a top view of the front cover plate of the top of the cabinet of the low-voltage switchgear assembly in accordance with embodiment 1 of the present invention;

fig. 11 is a schematic structural diagram of a cabinet top rear cover plate of a cabinet top structure of a low-voltage complete switch cabinet according to embodiment 1 of the present invention;

fig. 12 is a front view of a rear cover plate of a cabinet top structure of a low-voltage switchgear assembly according to embodiment 1 of the present invention;

fig. 13 is a left side view of a rear cover plate of a cabinet top structure of a low-voltage switchgear assembly according to embodiment 1 of the present invention;

fig. 14 is a top view of a rear cover plate of a cabinet top structure of a low-voltage switchgear assembly according to embodiment 1 of the present invention;

fig. 15 is a schematic structural view of the lower portion of the rear cover plate of the cabinet top structure of the low-voltage complete switch cabinet in embodiment 1 of the present invention;

fig. 16 is a front view of the rear cover plate of the cabinet top structure of the low-voltage switchgear assembly according to embodiment 1 of the present invention;

fig. 17 is a left side view of the rear cover plate of the cabinet top structure of the low-voltage complete switch cabinet according to embodiment 1 of the present invention;

fig. 18 is a plan view of the lower portion of the rear cover plate of the cabinet top structure of the low-voltage complete switch cabinet according to embodiment 1 of the present invention;

fig. 19 is a schematic structural diagram of a cabinet top structural framework beam of a low-voltage switchgear assembly in embodiment 1 of the present invention;

fig. 20 is a front view of a cabinet top structure framework beam of the low-voltage switchgear assembly according to embodiment 1 of the present invention;

fig. 21 is a left side view of a cabinet top structure framework beam of the low-voltage switchgear assembly according to embodiment 1 of the present invention;

fig. 22 is a top view of a cabinet top structure framework beam of the low-voltage switchgear assembly according to embodiment 1 of the present invention;

fig. 23 is a schematic structural view of a cover plate of a lifting ring hole of a cabinet top structure of a low-voltage switchgear assembly in embodiment 1 of the present invention;

fig. 24 is a schematic structural diagram of the whole cabinet top structure of a low-voltage switchgear assembly according to embodiment 2 of the present invention;

fig. 25 is a front view of a cabinet top structure of a low-voltage switchgear assembly according to embodiment 2 of the present invention;

fig. 26 is a schematic structural diagram of an anti-arcing end plate of a cabinet top structure of a low-voltage switchgear assembly in embodiment 2 of the present invention;

fig. 27 is a front view of the anti-arcing end plate of the cabinet top structure of the low-voltage switchgear assembly according to embodiment 2 of the present invention;

FIG. 28 is an enlarged view, partly in section, of FIG. 25A;

fig. 29 is a schematic structural diagram of a cabinet top structure of a low-voltage switchgear assembly according to embodiment 3 of the present invention;

the reference numerals refer to: 1-framework cross beam, 2-on the front cover plate of the cabinet top, 3-under the front cover plate of the cabinet top, 4-on the rear cover plate of the cabinet top, 5-under the rear cover plate of the cabinet top, 6-waterproof sealing rubber strip, 7-gap for hoisting, 8-hoisting installation hole, 9-waist hole, 10-flashover-proof end plate, 11-cover plate for incoming and outgoing lines, and 12-cover plate for hoisting hole.

Detailed Description