CN213717281U

CN213717281U - SVG power cabinet

Info

Publication number: CN213717281U
Application number: CN202020674898.1U
Authority: CN
Inventors: 薄晓坤; 任涛; 龙礼兰; 刘斐; 李滔; 邱文俊; 文韬; 龚芬
Original assignee: Zhuzhou CRRC Times Electric Co Ltd
Current assignee: Zhuzhou CRRC Times Electric Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-07-16
Anticipated expiration: 2030-04-28

Abstract

The utility model provides a SVG power cabinet belongs to high-pressure conversion field, including the single cabinet of power that sets up side by side, the single cabinet of power includes: the power supply cabinet comprises a cabinet body, wherein a support frame is arranged in the cabinet body, the support frame divides the cabinet body into three layers of spaces in the vertical direction, and a group of power modules are arranged in each layer of space; the air cooling system is arranged on the cabinet body, and sucks air from the outside of the cabinet body, flows in the cabinet body to absorb heat, and discharges the air after absorbing heat to the outside of the cabinet body; wherein the support bracket is configured to be capable of adjusting a depth according to a model of the power module.

Description

SVG power cabinet

Technical Field

The utility model relates to a SVG power cabinet belongs to high-pressure conversion field.

Background

With the development of economy, the national requirements on the power consumption quality are higher and higher, and the power compensation device is used as an important device for improving the power quality and is widely applied to various industries such as subways, steel, wind power and the like. In the prior art, the split type high-voltage reactive power compensation SVG equipment generally comprises a starting cabinet, a power cabinet and a control cabinet, wherein each cabinet is arranged in sequence in a single row. The power cabinet generally comprises a plurality of power single cabinets, and the Y-shaped star closure is carried out after three-phase N power modules in the cabinets are cascaded.

The main component determining the unit's compensation capacity is the power module. The specifications and sizes of air-cooled radiators and power electronic devices which need to be configured on the power modules with different capacities are different, and the sizes of the power modules with different capacities are different. Generally, in order to reduce the unit type spectrum types, the outline sizes of the power modules with the similar capacity are unified, different units are developed aiming at the power modules with different sizes, and product pedigree development is realized.

The general refinement development is convenient for the classified maintenance of products, but is not suitable for the deformation design of a whole series of products, once a customer has special customization requirements, the deformation design workload of the products in a full-capacity section is large, and the production and maintenance tasks are heavy.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem that exists among the prior art, the utility model provides a SVG power cabinet unifies to be a structure and compatible full series power module installation, and its degree of depth can be adjusted according to the power module of difference, can adapt to different power module's size.

In order to realize above utility model purpose, the utility model provides a SVG power cabinet, including the power single cabinet that sets up side by side, the power single cabinet includes:

the power supply cabinet comprises a cabinet body, wherein a support frame is arranged in the cabinet body, the support frame divides the cabinet body into three layers of spaces in the vertical direction, and a group of power modules are arranged in each layer of space;

the air cooling system is arranged on the cabinet body, and sucks air from the outside of the cabinet body, flows in the cabinet body to absorb heat, and discharges the air after absorbing heat to the outside of the cabinet body;

wherein the support bracket is configured to be capable of adjusting a depth according to a model of the power module.

The utility model is further improved in that the support frame comprises two rear vertical beams and two front vertical beams which are arranged at the rear part of the cabinet body, and the rear vertical beams comprise a left rear vertical beam and a right rear vertical beam which have the same depth position; the front vertical beams comprise a left front vertical beam and a right front vertical beam which have the same depth position;

the rear vertical beam is fixedly arranged in the cabinet body, and the depth position of the front vertical beam in the cabinet body can be adjusted.

The utility model discloses a further improvement lies in, the both sides of the upper end both sides and the lower extreme of the cabinet body all are provided with the installation roof beam, the rear portion of installation roof beam is provided with the installation erect the first installation piece of roof beam in the back, the front portion of installation roof beam is provided with the installation erect the second installation piece of roof beam in the front.

The utility model is further improved in that a plurality of mounting positions are arranged on the second mounting block, and each mounting position can be connected with the front vertical beam; the front vertical beam is selectively connected with one of the installation positions according to the type of the power module.

The utility model is further improved in that a plurality of mounting holes are arranged on the mounting position, and connecting holes corresponding to the mounting holes are arranged on the front vertical beam; the mounting holes and the connecting holes are connected through bolts or rivets.

The utility model has the further improvement that three front cross beams are arranged between the left front vertical beam and the right front vertical beam; three rear cross beams are arranged between the left rear vertical beam and the right rear vertical beam; the front cross beams and the rear cross beams correspond to each other one to one.

The utility model discloses a further improvement lies in, left back erect the roof beam with right back erect and be provided with the module briquetting between the roof beam, the module briquetting sets up power module's upper portion is screwed up through the bolt-up and is passed through the lower terminal surface power module applys pressure.

The utility model discloses a further improvement lies in, the back erect the roof beam preceding erect the roof beam the back crossbeam with the front beam all adopts insulating material.

The utility model discloses a further improvement lies in, the forced air cooling system is including setting up the fan at cabinet body top, the front side of the cabinet body is provided with the air intake.

The utility model has the further improvement that a certain distance is arranged between the rear vertical beam and the back plate of the cabinet body, so that a wind cavity is formed at the rear part of the cabinet body; under the action of the fan, air outside the cabinet body enters the cabinet body through the air inlet, enters the air cavity through the power module in the supporting frame for internal circulation, and is finally discharged out of the cabinet body through the fan.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a SVG power cabinet, unified structure and compatible full series power module installation that is, its degree of depth can be adjusted according to the power module of difference, can adapt to the size of different power modules. The modules in the cabinet support horizontal beams, vertical beams and the like, and other structures and electrical components are configured according to capacity.

Drawings

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an SVG power cabinet according to an embodiment of the present invention, showing a state of a front view;

fig. 2 is a schematic side sectional view of an SVG power cabinet according to an embodiment of the present invention, showing a state where a front vertical beam is connected to a first installation position;

fig. 3 is a schematic side sectional view of an SVG power cabinet according to an embodiment of the present invention, showing a state where a front vertical beam is connected to a second installation position;

fig. 4 is a schematic side sectional view of the SVG power cabinet according to an embodiment of the present invention, showing a state that the front vertical beam is connected to the third installation position

Fig. 5 is a schematic structural view of a mounting beam according to an embodiment of the present invention;

in the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

The meaning of the reference symbols in the drawings is as follows: 1. the cabinet body, 2, support frame, 3, air cooling system, 21, preceding vertical beam, 22, back vertical beam, 23, preceding crossbeam, 24, back crossbeam, 25, installation roof beam, 26, first installation piece, 27, second installation piece, 28, mounted position, 29, module briquetting, 31, fan, 32, air intake, 33, wind cavity.

Detailed Description

In order to make the technical solutions and advantages of the present invention more clearly understood, the following description is made in further detail with reference to the accompanying drawings. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not an exhaustive list of all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict.

Fig. 1 schematically shows an SVG power cabinet according to an embodiment of the present invention, which includes power cabinets arranged side by side, and the power cabinets include a cabinet body 1. The cabinet body 1 is internally provided with a support frame 2, the support frame 2 divides the cabinet body 1 into three layers of spaces in the vertical direction, and a group of power modules is arranged in each layer of space. In this embodiment, the cabinet body 1 is provided with an air cooling system 3, and the air cooling system 3 draws in air from the outside of the cabinet body 1, flows in the cabinet body 1 to absorb heat, and discharges the air after absorbing heat to the outside of the cabinet body 1. Wherein the support frame 2 is configured to be capable of adjusting a depth according to a model of a power module.

In the SVG power cabinet according to this embodiment, its degree of depth can be adjusted according to different power module, can adapt to the size of different power modules. The modules in the cabinet support horizontal beams, vertical beams and the like, and other structures and electrical components are configured according to capacity. The existing 130A-370A capacity power module is roughly divided into three types according to capacity, and the sizes of the different types are different, wherein the widths are the same, and the depths and the heights are not completely consistent. In the early-stage product development, different power cabinet units are developed aiming at power modules with different sizes in order to realize higher power density of the units, and the sizes of the series of units are not uniform. Once a customer has customization requirements such as high electrical insulation and special appearance on multi-capacity-section equipment, the deformation development workload of a whole series of units is large, and the problems of multiple types of existing equipment and large drawing maintenance amount are caused. The SVG power cabinet described in this embodiment can be adjusted according to the type of the power module to adapt to different modules, and the above problems are solved.

In one embodiment, the supporting frame 2 includes a front vertical beam 21 and a rear vertical beam 22, and both the front vertical beam 21 and the rear vertical beam 22 are disposed in the cabinet 1 and are disposed vertically. The rear vertical beam 22 comprises a left rear vertical beam 22 and a right rear vertical beam 22, and the depth positions of the left rear vertical beam 22 and the right rear vertical beam 22 are the same and are fixed in the cabinet body 1. The front vertical beam 21 includes a left front vertical beam 21 and a right front vertical beam 21, the depth positions of the left front vertical beam 21 and the right front vertical beam 21 are the same, and the depth positions are adjustable.

In the SVG power cabinet according to this embodiment, there are three depth positions of the front vertical beam 21, which are the first mounting position, the second mounting position and the third mounting position, respectively, and the depth position of the front vertical beam 21 can be adjusted according to the power modules adapted to different applications. Fig. 2 shows a state in the first mounting position, fig. 3 shows a state in the second mounting position, and fig. 4 shows a state in the third mounting position, in which the front vertical beams 21 are respectively disposed at different positions.

In one embodiment, as shown in fig. 2, mounting beams 25 are disposed on both sides of the upper end and both sides of the lower end of the cabinet body 1, and the mounting beams 25 are horizontally disposed for mounting the front vertical beam 21 and the rear vertical beam 22. The rear part of the mounting beam 25 is provided with a first mounting block 26 for mounting the rear vertical beam 22, and the front part of the mounting beam 25 is provided with a second mounting block 27 for mounting the front vertical beam 21.

In a preferred embodiment, as shown in fig. 5, a plurality of mounting locations 28 are provided on the second mounting block 27, and each of the mounting locations 28 can be connected to the front vertical beam 21. The front vertical beam 21 is selectively connected to one of the mounting positions 28 according to the model of the power module. In the present embodiment, the mounting locations 28 include three, a first mounting location 28, a second mounting location 28, and a third mounting location 28.

When the SVG power cabinet according to the present embodiment is used, the depth of the support frame 2 is adjusted according to the type of the configured power module, and when the depth of the support frame 2 is adjusted, the adjustment is realized by adjusting the position of the front vertical beam 21 on the second mounting block 27, and one mounting position 28 in the second mounting block 27 is selected respectively for determination.

In one embodiment, the mounting position 28 is provided with a plurality of mounting holes, and the front vertical beam 21 is provided with connecting holes corresponding to the mounting holes. The mounting holes and the connecting holes are connected through bolts or rivets. Preferably, the number of the mounting holes is two, and the mounting holes are threaded holes, and threads are arranged inside the mounting holes. The connecting hole can be a threaded hole or a through hole. When the front vertical beam 21 is connected, the mounting holes and the connecting holes are aligned first, and then the front vertical beam 21 is connected to the second mounting block 27 by screws or bolts.

In one embodiment, three front cross beams 23 are provided between the left front vertical beam 21 and the right front vertical beam 21; three rear cross beams 24 are arranged between the left rear vertical beam 22 and the right rear vertical beam 22; the front cross beams 23 and the rear cross beams 24 correspond one to one.

In the SVG power cabinet according to the present embodiment, the front cross member 23 and the rear cross member 24 are disposed opposite to each other and serve as a support member for supporting the power module. The space between the upper and lower front cross members 23 serves as a space for mounting the power module. The height of this space is greater than the height of the highest of the three power modules.

In one embodiment, a module pressing block 29 is disposed between the left rear vertical beam 22 and the right rear vertical beam 22, the module pressing block 29 is a long strip-shaped structure, two ends of the module pressing block 29 extend between the left rear vertical beam 22 and the right rear vertical beam 22, and the module pressing block 29 is disposed at the upper portion of the power module and applies pressure to the power module through vibration. The pressure of the module press block 29 can fix the power module and prevent the power module from tilting up and down.

In a preferred embodiment, the rear vertical beam 22, the front vertical beam 21, the rear cross beam 24 and the front cross beam 23 are made of insulating materials, so that the rear vertical beam, the front vertical beam, the rear cross beam and the front cross beam meet the requirements of phase-to-phase and relative electrical insulation.

In one embodiment, the air cooling system 3 includes a fan 31 disposed at the top of the cabinet 1, and an air inlet 32 is disposed at the front side of the cabinet 1. In the present embodiment, the fan 31 is an air draft device, which is used as a power for air circulation of the air cooling system 3. The power module can produce the heat at the course of the work, and the outside relatively cold air of the cabinet body 1 enters into the cabinet body 1 from air intake 32, through the power module and take away the heat in the power module, becomes the higher air of temperature, discharges the hot-air through fan 31 at last, makes and remains lower temperature throughout in the cabinet body 1 to guarantee the power module safe operation in the cabinet body 1.

In one embodiment, the rear vertical beam 22 is spaced from the back plate of the cabinet 1, so that a wind cavity 33 is formed at the rear part of the cabinet 1; under the action of the fan 31, air outside the cabinet 1 enters the cabinet 1 through the air inlet 32, enters the air cavity 33 through the power module in the support frame 2 for internal circulation, and is finally discharged out of the cabinet 1 through the fan 31.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the appended claims are intended to be construed to include preferred embodiments and all such changes and/or modifications as fall within the scope of the invention, and all such changes and/or modifications as are made to the embodiments of the present invention are intended to be covered by the scope of the invention.

Claims

1. The utility model provides a SVG power cabinet, includes the power single cabinet that sets up side by side, its characterized in that, the power single cabinet includes:

the power supply cabinet comprises a cabinet body (1), wherein a support frame (2) is arranged in the cabinet body (1), the support frame (2) divides the cabinet body (1) into three layers of spaces in the vertical direction, and a group of power modules is arranged in each layer of space;

the air cooling system (3) is arranged on the cabinet body (1), the air cooling system (3) sucks air from the outside of the cabinet body (1), the air flows in the cabinet body (1) to absorb heat, and the air after heat absorption is discharged out of the cabinet body (1); the air cooling system (3) comprises a fan (31) arranged at the top of the cabinet body (1), and an air inlet (32) is formed in the front side of the cabinet body (1);

wherein the support frame (2) is configured to be adjustable in depth according to the type of the power module.

2. The SVG power cabinet according to claim 1, characterized in that said support frame (2) comprises two rear vertical beams (22) and two front vertical beams (21) arranged at the rear of the cabinet body (1), said rear vertical beams (22) comprising a left rear vertical beam (22) and a right rear vertical beam (22) having the same depth position; the front vertical beam (21) comprises a left front vertical beam (21) and a right front vertical beam (21) with the same depth position;

the rear vertical beam (22) is fixedly arranged in the cabinet body (1), and the front vertical beam (21) can be adjusted to the depth position in the cabinet body (1).

3. The SVG power cabinet according to claim 2, characterized in that both sides of the upper end and both sides of the lower end of the cabinet body (1) are provided with mounting beams (25), the rear portion of the mounting beams (25) is provided with first mounting blocks (26) to mount the rear vertical beams (22), and the front portion of the mounting beams (25) is provided with second mounting blocks (27) to mount the front vertical beams (21).

4. An SVG power cabinet according to claim 3, characterized in that said second mounting block (27) is provided with a number of mounting locations (28), each of said mounting locations (28) being connectable to said front vertical beam (21); the front vertical beam (21) is selectively connected with one of the mounting positions (28) according to the type of the power module.

5. An SVG power cabinet according to claim 4, characterized in that said mounting location (28) is provided with mounting holes, said front vertical beam (21) is provided with connecting holes corresponding to said mounting holes; the mounting holes and the connecting holes are connected through bolts or rivets.

6. An SVG power cabinet according to claim 5, characterized in that three front cross beams (23) are provided between said left front vertical beam (21) and said right front vertical beam (21); three rear cross beams (24) are arranged between the left rear vertical beam (22) and the right rear vertical beam (22); the front cross beams (23) and the rear cross beams (24) are in one-to-one correspondence.

7. The SVG power cabinet according to claim 6, characterized in that a module pressing block (29) is provided between the left rear vertical beam (22) and the right rear vertical beam (22), the module pressing block (29) being provided at an upper portion of the power module and applying pressure to the power module through a lower end face by bolt-fastening screwing.

8. An SVG power cabinet according to claim 7, characterized in that said rear vertical beam (22), said front vertical beam (21), said rear cross beam (24) and said front cross beam (23) are all of insulating material.

9. The SVG power cabinet according to claim 8, characterized in that said rear vertical beam (22) is at a distance from the back plate of said cabinet body (1) such that the rear of said cabinet body (1) forms a wind cavity (33); under the effect of fan (31), the outside air of the cabinet body (1) enters into through air intake (32) in the cabinet body (1) to enter into wind chamber (33) inner loop through the power module in support frame (2), pass through at last fan (31) is discharged outside the cabinet body (1).