阅读说明：本技术 一种直流支撑电容器用安装攀 (Installation is climbed for direct current support capacitor ) 是由 孙晓武 李印达 李冲 张剑 俞成 孙明 曹崇峰 于 2020-11-24 设计创作，主要内容包括：本发明公开了一种直流支撑电容器用安装攀,安装攀主要由安装攀板件、第一焊接螺母和第二焊接螺母构成,安装攀板件包括安装攀板件本体、第一安装孔和第二安装孔,安装攀板件本体为一体化结构,第一安装孔在安装攀板件本体的表面,第二安装孔在安装攀板件本体的两个小侧面,安装攀板件的第一安装孔反面内壁焊接第一焊接螺母,安装攀板件的第二安装孔反面内壁焊接第二焊接螺母。本发明结构简单,操作方面,可以满足直流支撑电容器在生产、安装、运输、维护时操作需求。(The invention discloses an installation scale for a direct current support capacitor, which mainly comprises an installation scale plate, a first welding nut and a second welding nut, wherein the installation scale plate comprises an installation scale plate body, a first installation hole and a second installation hole, the installation scale plate body is of an integrated structure, the first installation hole is formed in the surface of the installation scale plate body, the second installation hole is formed in two small side surfaces of the installation scale plate body, the first welding nut is welded on the inner wall of the reverse side of the first installation hole of the installation scale plate, and the second welding nut is welded on the inner wall of the reverse side of the second installation hole of the installation scale plate. The invention has simple structure and operation, and can meet the operation requirements of the direct current support capacitor in production, installation, transportation and maintenance.)

1. The utility model provides a direct current supports capacitor and climbs with installation, characterized by: the plate body, first mounting hole and second mounting hole are climbed including the installation to the plate body is climbed in the installation, the plate body is climbed in the installation to the installation structure as an organic whole, first mounting hole is on the surface of plate body is climbed in the installation, the second mounting hole is on two little sides of plate body is climbed in the installation, first welding nut is welded to the first mounting hole reverse side inner wall of plate is climbed in the installation, second welding nut is welded to the second mounting hole reverse side inner wall of plate is climbed in the installation.

2. The installation flap plate body according to claim 1, wherein: the plate body material is climbed in the installation is SUS304 stainless steel, thickness 3mm, and it is the integral structure, and its four sides adopt right angle numerical control hem, and the hem radius is 2mm, and its mounting hole adopts laser to punch a hole, and the tolerance is 0.1 mm.

Technical Field

The invention belongs to the field of capacitor structures, and particularly relates to an installation scale for a direct-current support capacitor.

Background

The direct current support capacitor is a key device of the converter, and plays roles in stabilizing voltage, filtering and the like on a direct current side in the converter. At present, high-power converters such as high-voltage frequency converters of dozens of megawatts, high-speed motor car converters, high-power STATCOM, direct-current capacitors for flexible direct-current transmission engineering and the like need to use high-voltage large-capacity direct-current supporting capacitors.

In recent years, these dc support capacitors have come to adopt a dry structure. The common characteristics of the capacitors are high voltage, large capacity and heavy weight, and the maximum direct current support capacitor reaches 210 kg. During the production, transportation, installation, use and maintenance of the capacitor, the installation scale of one of the mechanical interfaces is very important.

For the light-weight DC support capacitor, the mounting climber is usually in a U-shaped or L-shaped structure. For the direct current supporting capacitor with the weight of more than 100kg, the mounting scale and the box shell of the direct current supporting capacitor need to be welded in a fully-closed mode. The type 2 capacitor is generally installed in a horizontal mode, 2 installation climbers are welded on each side face, and 4 installation climbers are welded on each side face, so that the requirements on the size of the installation climbers and the welding quality are high.

At present, the mounting bar has the characteristics of full-closed welding: usually, 1U-shaped plate is selected and used, 2 rectangular plates are added, the U-shaped plates are welded firstly, then the 2 rectangular plates are welded, and the welding seams at the splicing positions are polished. It has the following disadvantages: the appearance attractiveness and the size are influenced by the welding seam spliced between the U-shaped plate and the rectangular plate; 2 times of welding is added in the splicing process, the deformation of the box shell is influenced by the welding heat, and the installation and use are influenced by the size; the welding of the installation fixing nut influences the flatness of the installation scale and the accuracy of the installation size.

Therefore, the new installation scale is needed to meet the requirements of installation, fixation and maintenance, and meanwhile, the production efficiency can be improved.

Disclosure of Invention

The invention provides a mounting scale for a direct current support capacitor, aiming at overcoming the defect of the mounting scale of the existing direct current support capacitor with heavy weight.

The technical scheme adopted by the invention is as follows.

The invention provides an installation scale for a direct current support capacitor. The installation climbing plate comprises an installation climbing plate body, a first installation hole and a second installation hole. The plate body is climbed in the installation and is of an integrated structure, four right-angle folding edges of the plate body are provided with 4 first mounting holes on the surface, and 2 second mounting holes are respectively arranged on 2 small side faces. A first welding nut is welded on the inner wall of the reverse side of the first mounting hole of the mounting climbing plate. And a second welding nut is welded on the inner wall of the reverse side of the second mounting hole of the mounting climbing plate.

The plate body material is climbed in the installation is SUS304 stainless steel, thickness 3mm, and it is the integral structure, and its four sides adopt right angle numerical control hem, and the hem radius is 2mm, and its mounting hole adopts laser to punch a hole, and the tolerance is 0.1 mm.

The diameter of the first mounting holes is 10.5 mm, the arrangement mode is rectangular, the center distance between the 2 transverse first mounting holes is 120 mm, the tolerance is +/-1 mm, and the center distance between the 2 longitudinal first mounting holes is 80mm, and the tolerance is +/-1 mm.

The diameter of the second mounting holes is 8.1mm, the second mounting holes are longitudinally arranged, the center distance between 2 second mounting holes is 80mm, and the tolerance is +/-0.5 mm.

The first welding nut is made of stainless steel, the surface of the first welding nut is plated with nickel, the diameter of an inner thread of the first welding nut is 8mm, the outer diameter of the bottom of the first welding nut is 10.2mm, and the length of the first welding nut is 0.5-1 mm.

The second welding nut is made of stainless steel, the surface of the second welding nut is subjected to nickel plating treatment, the diameter of an inner thread of the second welding nut is 6mm, the outer diameter of the bottom of the second welding nut is 7.8mm, and the length of the second welding nut is 0.5-1 mm.

The diameter of a first mounting hole of the mounting climbing plate is 0.3mm larger than the outer diameter of the bottom of the first welding nut, and the fitting tolerance range is wide.

The diameter of a second mounting hole of the mounting climbing plate is 0.3mm larger than the outer diameter of the bottom of the second welding nut, and the fitting tolerance range is wide.

Furthermore, the first welding nut and the second welding nut can also adopt the same specification, so that the first mounting hole on the surface of the mounting climbing plate is the same as the second mounting hole on the small side surface in aperture.

Furthermore, a second mounting hole can be added on the large side surface of the mounting climbing plate, and the second mounting hole on the small side surface of the mounting climbing plate is reserved or cancelled.

Further, the distance and tolerance between the first mounting holes can be adjusted according to actual application conditions, and the distance and tolerance between the second mounting holes can also be adjusted according to actual application conditions.

The invention has the beneficial effects that: the welding workload and the welding deformation are reduced, the mounting scale is attractive, the size precision is improved, the operation is more convenient during production, mounting, transportation and maintenance, the efficiency is higher, and the effect is better.

The invention has simple structure and operation, and can meet the operation requirements of the direct current support capacitor in production, installation, transportation and maintenance.

Drawings

FIG. 1 is a schematic view of the present invention mounted on a DC support capacitor;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic view of an installation flap;

FIG. 4 is a schematic view of an installation flap member;

in the figure, 1-dc supports the capacitor box housing; 2-dc supporting the capacitor case cover; 3, mounting a climbing bar; 4-a dc support capacitor terminal;

31-mounting a climbing plate; 32-a first weld nut; 33-a second weld nut;

311-installing a climbing plate body; 312-a first mounting hole; 313 — second mounting hole.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

As can be seen in fig. 1, the dc support capacitor is formed by a dc support capacitor case (1), a dc support capacitor case cover (2), a mounting tab (3), and a dc support capacitor terminal (4).

Fig. 2 is a left side view of fig. 1.

As can be seen in fig. 3 and 4:

the mounting bar (3) mainly comprises a mounting bar plate (31), a first welding nut (32) and a second welding nut (33); the mounting flap plate member (31) comprises a mounting flap plate member body (311), a first mounting hole (312) and a second mounting hole (313); the mounting climbing plate body (311) is of an integrated structure, four sides of the mounting climbing plate body are folded at right angles, the surface of the mounting climbing plate body is provided with 4 first mounting holes (312), and 2 small side surfaces are respectively provided with 2 second mounting holes (313); a first welding nut (32) is welded on the inner wall of the reverse side of a first mounting hole (313) of the mounting climbing plate piece (31). A second welding nut (33) is welded on the inner wall of the reverse side of a second mounting hole (313) of the mounting climbing plate piece (31); plate body (311) thickness 3mm is climbed in the installation, and it is integral structure, and right angle numerical control hem is adopted on its four sides, and the hem radius is 2 mm.

Furthermore, the first welding nut (32) and the second welding nut (33) can also adopt the same specification, so that the first mounting hole (312) and the second mounting hole (313) of the mounting climbing plate piece (31) have the same hole diameter.

Furthermore, a second mounting hole (313) can be added on the large side of the mounting flap plate piece (31), and the second mounting hole (313) on the small side of the mounting flap plate piece (31) is reserved or eliminated.

Further, the distance and tolerance between the first mounting holes can be adjusted according to actual application conditions, and the distance and tolerance between the second mounting holes can also be adjusted according to actual application conditions.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.