Positioning mechanism for installing direct-current supporting capacitor

Abstract

The utility model discloses a positioning mechanism for installing a direct current support capacitor, which belongs to the technical field of direct current support capacitors in the power electronic industry, and comprises a shell, a cross beam, a positioning plate, a first pressing plate, a second pressing plate, a spring, a first nut and a second nut, a plurality of placing holes are arranged in the cross beam, a plurality of open holes are arranged in the positioning plate, and the first pressing plate and the second pressing plate are arranged in the shell. The cross beam and the second pressing plate are both connected with the shell, the cross beam and the shell are fixedly connected in a screwing or welding mode, and a plurality of bosses and studs are arranged on one side, close to the positioning plate, of the surface of the first pressing plate. The first pressing plate, the second pressing plate, the spring, the first nut and the second nut are matched with the shell to fix a plurality of direct-current supporting capacitors, the positions of the direct-current supporting capacitors do not need to be repeatedly adjusted, installation of the direct-current supporting capacitors is facilitated, and the production efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the direct current support capacitor technical field of power electronics industry especially relates to a kind of positioning mechanism for direct current support capacitor installation. BACKGROUND

[0002] Direct current support capacitor is the key device of power electronics industry, and it mainly plays the role of stabilizing voltage, filtering etc. Direct current support capacitor is arranged by multiple parallel arrays to improve capacity. The shape of direct current support capacitor is mostly cylindrical, one end is a fixed column, the other end is two electrical connection columns, and the conventional assembly mode needs to repeatedly adjust the position of direct current support capacitor to realize the positioning and fixation of fixed column and electrical connection column, which affects production efficiency. SUMMARY

[0003] To solve the problems in the prior art, the utility model provides a positioning mechanism for direct current support capacitor installation to solve the technical problem that the prior art needs to repeatedly adjust the position of direct current support capacitor to realize the positioning and fixation of fixed column and electrical connection column.

[0004] The utility model adopts the following technical scheme.

[0005] A positioning mechanism for direct current support capacitor installation comprises a housing, a crossbeam, a positioning plate, a first pressing plate, a second pressing plate, a spring, a first nut and a second nut, the crossbeam is provided with a plurality of placing holes, the positioning plate is provided with a plurality of openings, the crossbeam and the second pressing plate are connected with the housing, the crossbeam and the housing are fixedly connected by screwing or welding, a plurality of bosses and studs are arranged on the surface of the first pressing plate close to one side of the positioning plate, the bosses abut against the positioning plate, the studs penetrate through the second pressing plate, the first nut is threadedly connected with the studs, the first nut abuts against the second pressing plate, the second pressing plate is interposed between the first pressing plate and the first nut, the ends of the spring are connected with the first pressing plate and the second pressing plate respectively, the positioning plate and the crossbeam abut against the direct current support capacitor, and the second nut is located on one side of the crossbeam.

[0006] As an improvement, the placing holes are circular, and the size of the placing holes matches the size of the fixed column on the surface of the direct current support capacitor.

[0007] As an improvement, the placing holes penetrate through the crossbeam.

[0008] As an improvement, the plurality of placing holes are linearly and uniformly distributed in the crossbeam.

[0009] As an improvement, the studs and the bosses are respectively located on both sides of the first pressing plate, and a plurality of bosses are linearly and uniformly distributed on the lower surface of the first pressing plate.

[0010] As an improvement, the opening is rectangular, and the size of the opening matches the size of the electrical connection column of the DC support capacitor surface.

[0011] As an improvement, the opening penetrates the positioning plate.

[0012] As an improvement, the second pressing plate is provided with a through hole and a blind hole on both sides, the through hole is located on the surface of the second pressing plate close to the first nut, and the blind hole is located on the surface of the second pressing plate close to the spring, and one end of the spring is inserted into the blind hole.

[0013] As an improvement, the through hole is rectangular, and the blind hole is circular.

[0014] As an improvement, the through hole is connected with the blind hole, and the stud penetrates the spring, the through hole and the blind hole.

[0015] The beneficial effects of the utility model lie in that, compared with the prior art, the cross beam and the positioning plate can realize accurate positioning of the fixing column and the electrical connection column of the DC support capacitor by mutual cooperation, the first pressing plate, the second pressing plate, the spring, the first nut, the second nut and the shell can fix multiple DC support capacitors, the position of the DC support capacitor does not need to be repeatedly adjusted, the installation of the DC support capacitor is facilitated, and the production efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an internal structure diagram of the utility model;

[0017] Figure 2 It is a first three-dimensional schematic view of the utility model;

[0018] Figure 3 It is a second three-dimensional schematic view of the utility model;

[0019] Figure 4 It is a structure schematic view of the first pressing plate of the utility model;

[0020] Figure 5 It is a structure schematic view of the second pressing plate of the utility model.

[0021] Among them, the reference signs are:

[0022] 10, shell; 20, first pressing plate; 21, stud; 22, boss; 30, positioning plate; 31, opening; 40, second pressing plate; 41, through hole; 42, blind hole; 50, first nut; 60, spring; 70, cross beam; 71, placing hole; 80, DC support capacitor; 81, electrical connection column; 82, fixing column. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the utility model embodiments. The embodiments described in the application are only a part of the embodiments of the utility model, not all embodiments. Based on the spirit of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] As shown in Figures 1-5 A positioning mechanism for direct current support capacitor installation, comprising: a housing 10, a crossbeam 70, a positioning plate 30, a first pressing plate 20, a second pressing plate 40, a spring 60, a first nut 50 and a second nut, a plurality of placing holes 71 are arranged in the crossbeam 70, a plurality of openings 31 are arranged in the positioning plate 30, the crossbeam 70 and the second pressing plate 40 are connected with the housing 10, the crossbeam 70 and the housing 10 are fixedly connected through screwing or welding, a plurality of bosses 22 and studs 21 are arranged on the surface of the first pressing plate 20 close to one side of the positioning plate 30, the bosses 22 abut against the positioning plate 30, the studs 21 penetrate through the second pressing plate 40, the first nut 50 is threadedly connected with the studs 21, the first nut 50 abuts against the second pressing plate 40, the second pressing plate 40 is interposed between the first pressing plate 20 and the first nut 50, the spring 60 has two ends connected with the first pressing plate 20 and the second pressing plate 40 respectively, the positioning plate 30 and the crossbeam 70 abut against the direct current support capacitor 80, and the second nut is located on one side of the crossbeam 70.

[0025] In the preferred but non-limiting embodiments of the utility model, the placing holes 71 are circular, and the size of the placing holes 71 matches the size of the fixing column 82 on the surface of the direct current support capacitor 80. The fixing column 82 on the surface of the direct current support capacitor 80 is conveniently placed.

[0026] In the preferred but non-limiting embodiments of the utility model, the placing holes 71 penetrate through the crossbeam 70. The fixing column 82 on the surface of the direct current support capacitor 80 is conveniently penetrated through the placing holes 71 on the crossbeam 70.

[0027] In the preferred but non-limiting embodiments of the utility model, a plurality of placing holes 71 are linearly and uniformly distributed in the crossbeam 70.

[0028] In the preferred but non-limiting embodiments of the utility model, the studs 21 and the bosses 22 are respectively located on both sides of the first pressing plate 20, and a plurality of bosses 22 are linearly and uniformly distributed on the lower surface of the first pressing plate 20.

[0029] In the utility model preferred but not limited mode of embodiment, the aperture 31 is rectangular, the aperture 31 size is matched with the size of the electrical connection column 82 on the surface of direct current support capacitor 80. It is convenient to place the electrical connection column 82 on the surface of direct current support capacitor 80.

[0030] In the utility model preferred but not limited mode of embodiment, the aperture 31 is through positioning plate 30. It is convenient for the electrical connection column 82 on the surface of direct current support capacitor 80 to pass through the aperture 31 on positioning plate 30.

[0031] In the utility model preferred but not limited mode of embodiment, the second pressing plate 40 both sides are respectively provided with through-hole 41, blind hole 42, the through-hole 41 is located on the surface of second pressing plate 40 near first nut 50 side, the blind hole 42 is located on the surface of second pressing plate 40 near spring 60 side, and one end of spring 60 is inserted into blind hole 42.

[0032] In the utility model preferred but not limited mode of embodiment, the through-hole 41 is rectangular, and the blind hole 42 is circular.

[0033] In the utility model preferred but not limited mode of embodiment, the through-hole 41 is communicated with the blind hole 42, and the stud 21 is through spring 60, through-hole 41 and blind hole 42.

[0034] In the utility model preferred but not limited mode of embodiment, the included angle between the first pressing plate 20 and the second pressing plate 40 is ninety degrees.

[0035] Working principle:

[0036] Taking the need to install N·M direct current support capacitors 80 as an example, the direct current support capacitors adopt N rows and M columns arrangement mode.

[0037] M apertures are arranged on the positioning plate 30, the number of positioning plates 30 is N, M placing holes are arranged on the cross beam 70, the number of cross beams 70 is N, N bosses 22 are arranged on the first pressing plate 20, the fixing column 82 of the M direct current support capacitors 80 in each row passes through the placing hole 71 of the corresponding cross beam 70, the electrical connection column 81 of the M direct current support capacitors 80 in each row passes through the aperture 31 of the corresponding positioning plate 30, the M direct current support capacitors 80 in each row are installed and positioned by one positioning plate 30 and one cross beam 70, and N positioning plates 30 and N cross beams 70 are used to install and position N·M direct current support capacitors 80.

[0038] In the specific installation, the fixing column 82 of the lower surface of the direct current support capacitor 80 passes through the placing hole 71 on the cross beam 70, the second nut is screwed with the fixing column 82 of the lower surface of the direct current support capacitor 80, the fixing column 82 of the lower surface of the direct current support capacitor 80 and the cross beam 70 are fixed, the electrical connection column 81 of the upper surface of the direct current support capacitor 80 passes through the opening 31 on the positioning plate 30, the upper surface of the second pressing plate 40 abuts against the inner surface of the shell 10, the spring 60 is clamped between the lower surface of the second pressing plate 40 and the upper surface of the first pressing plate 20, the first nut 50 is rotated to adjust the compression amount of the spring 60, the spring 60 pushes the first pressing plate 20 to be close to the positioning plate 30, the protrusion 22 of the lower surface of the first pressing plate 20 is extruded, the positioning plate 30 is extruded, and finally the direct current support capacitor 80 is positioned.

[0039] The utility model discloses the beneficial effect lies in, compared with the prior art, cross beam and positioning plate cooperation can realize the fixed column and electrical connection column of direct current support capacitor accurate positioning, first pressing plate, second pressing plate, spring, first nut, second nut cooperation shell can complete the fixing of multiple direct current support capacitors, do not need repeatedly adjust direct current support capacitor position, the installation of direct current support capacitor is convenient, and production efficiency is greatly improved.

[0040] Finally, it should be noted that the above examples are used to illustrate the technical solutions of the utility model, but not to limit them. Although the utility model has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the utility model can be modified or replaced, and any modification or replacement that does not deviate from the spirit and scope of the utility model should be covered in the protection scope of the claims of the utility model.

Claims

1. A positioning mechanism for direct current support capacitor installation, characterized by, The utility model relates to a positioning mechanism for DC support capacitor installation, including: The shell (10), crossbeam (70), positioning plate (30), first pressing plate (20), second pressing plate (40), spring (60), first nut (50) and second nut, the crossbeam (70) is provided with several placement hole (71) in, positioning plate (30) is provided with several aperture (31) in, the crossbeam (70), second pressing plate (40) are connected with shell (10), and crossbeam (70) is fixed with shell (10) through screwing or welding mode, first pressing plate (20) surface is provided with several boss (22), stud (21) near positioning plate (30) one side, boss (22) is in abutment with positioning plate (30), stud (21) penetrates second pressing plate (40), first nut (50) is in threaded connection with stud (21), first nut (50) is in abutment with second pressing plate (40), second pressing plate (40) is between first pressing plate (20), first nut (50), spring (60) both ends are connected with first pressing plate (20), second pressing plate (40) respectively, positioning plate (30), crossbeam (70) are in abutment with DC support capacitor (80), and second nut is located in one side of crossbeam (70).

2. The positioning mechanism for DC support capacitor installation according to claim 1, wherein: The placement hole (71) is circular, and the size of the placement hole (71) matches the size of the fixing column (82) on the surface of the DC support capacitor (80).

3. The positioning mechanism for DC support capacitor installation according to claim 1, wherein: The placement hole (71) penetrates the crossbeam (70).

4. The positioning mechanism for DC support capacitor installation according to claim 1, wherein: The plurality of placement holes (71) are linearly and uniformly distributed in the crossbeam (70).

5. The positioning mechanism for DC support capacitor installation according to claim 1, wherein: The stud (21) and the boss (22) are respectively located on both sides of the first pressing plate (20), and a plurality of bosses (22) are linearly and uniformly distributed on the lower surface of the first pressing plate (20).

6. The positioning mechanism for DC support capacitor installation according to claim 1, wherein: The aperture (31) is rectangular, and the size of the aperture (31) matches the size of the electrical connection column (81) on the surface of the DC support capacitor (80).

7. The positioning mechanism for DC support capacitor installation according to claim 1, wherein: The aperture (31) penetrates the positioning plate (30).

8. The positioning mechanism for DC support capacitor installation according to claim 1, wherein: The second pressing plate (40) is provided with a through hole (41) and a blind hole (42) on both sides, the through hole (41) is located on the surface of the second pressing plate (40) near the first nut (50), the blind hole (42) is located on the surface of the second pressing plate (40) near the spring (60), and one end of the spring (60) is inserted into the blind hole (42).

9. A positioning mechanism for DC support capacitor mounting as claimed in claim 8 wherein: said through hole (41) is rectangular and said blind hole (42) is circular.

10. A positioning mechanism for DC support capacitor mounting as claimed in claim 8 wherein: said through hole (41) is in communication with said blind hole (42) and said stud (21) passes through said spring (60), said through hole (41) and said blind hole (42).

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