CN210743613U

CN210743613U - Copper bar connecting piece and industrial frequency converter

Info

Publication number: CN210743613U
Application number: CN201921866470.0U
Authority: CN
Inventors: 缠东辉; 任忠宝
Original assignee: Siemens Electrical Drives Ltd
Current assignee: Siemens Electrical Drives Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-06-12
Anticipated expiration: 2029-10-30

Abstract

The utility model provides a copper bar connecting piece, the mounting hole has been seted up respectively to the first end relative each other and the second end of copper bar connecting piece, has two sections of bending on the copper bar connecting piece, and the copper bar connecting piece is respectively along two sections of bending the shaping, wherein, two sections of bending are parallel to each other and bend and form a contained angle between the edge of section and copper bar connecting piece. Furthermore, the utility model also provides an industrial frequency converter who adopts above-mentioned copper bar connecting piece.

Description

Copper bar connecting piece and industrial frequency converter

Technical Field

The utility model relates to an industry converter field especially relates to a copper bar connecting piece and adopted industry converter product of this kind of copper bar connecting piece.

Background

The reactor in the industrial frequency converter needs to be connected with the bus through a copper bar connecting piece. Because the installation space inside the industrial frequency converter is limited, the shape of the existing copper bar is designed to be special-shaped. For example, the shape of the copper bar connected with the three terminals of the reactor side by side is irregular, namely, the required shape of the copper bar can be divided from a whole copper plate during processing, and the use requirement is met through bending. However, the irregular shape results in a large waste of material and increased costs.

Therefore, there is a need in the industry for a better solution to reduce manufacturing costs.

SUMMERY OF THE UTILITY MODEL

The utility model provides a special design's copper bar connecting piece and adopt industry converter of this kind of copper bar connecting piece. Especially, the utility model discloses a copper bar connecting piece adopts traditional rectangle. And, the utility model discloses a copper bar connector can satisfy the space operation requirement in the industry converter through the position and the angle that change the limit of bending. The application requirements can be met, the material can be saved, and the cost can be reduced.

According to the utility model discloses an aspect provides a copper bar connecting piece, the mounting hole has been seted up respectively to the first end relative to each other and the second end of copper bar connecting piece, two sections of bending have on the copper bar connecting piece, the copper bar connecting piece respectively along two sections of bending, wherein, two sections of bending are parallel to each other just the section of bending with form a contained angle between the edge of copper bar connecting piece.

According to the utility model discloses an embodiment, in foretell copper bar connecting piece, the contained angle is 65 degrees, just the copper bar connecting piece is 100 degrees along each angle of bending of the section of bending.

According to the utility model discloses an embodiment, in foretell copper bar connecting piece, the copper bar connecting piece is in along same direction of rotation two section departments of bending bend.

According to the utility model discloses an embodiment, in foretell copper bar connecting piece, the contained angle is 45 degrees, just the copper bar connecting piece is 90 degrees along the book bent angle degree of each section of bending.

According to the utility model discloses an embodiment, in foretell copper bar connecting piece, the copper bar connecting piece is in along the rotation direction opposite each other two section departments of bending bend.

According to another aspect of the present invention, there is provided an industrial frequency converter comprising a reactor, a bus bar and a copper bar connection as discussed above,

the reactor is provided with three terminals arranged side by side, the first ends of three copper bar connecting pieces are respectively connected with the three terminals by fasteners penetrating through the mounting holes, the second ends of the three copper bar connecting pieces are connected with a busbar of the industrial frequency converter,

wherein a first terminal of the three terminals is connected with a support beam via a first insulating column;

and the second and third terminals of the three terminals are respectively connected with a fixing plate through second and third insulating columns and then further connected with the supporting beam.

According to the utility model discloses an embodiment, in foretell industry converter, the reactor is the top reactor, the contained angle is 65 degrees, the angle of bending of copper bar connecting piece along each section of bending is 100 degrees, just the copper bar connecting piece is in along same direction of rotation two sections of bending are bent.

According to the utility model discloses an embodiment, in foretell industry converter, the interval between the two sections of bending on the three copper bar connecting piece is different each other.

According to the utility model discloses an embodiment, in foretell industry converter, the reactor is the bottom reactor, the contained angle is 45 degrees, the copper bar connecting piece is 90 degrees along the book bent angle degree of each section of bending, just the copper bar connecting piece is in along the direction of rotation opposite to each other two sections of bending are bent.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1 shows an embodiment according to the utility model discloses a copper bar connecting piece is applied to bottom reactor.

Figure 2 shows an embodiment according to the utility model discloses a copper bar connecting piece is applied to top reactor.

Fig. 3 and 4 show two states of the first embodiment of the copper bar connection piece according to the invention.

Fig. 5 and 6 show two states of a second embodiment of a copper bar connection according to the invention.

Description of reference numerals:

11 mounting hole

12. 13 bending section

14 edge

20 electric reactor

21a, 21b, 21c terminal

22b, 22c second and third insulating columns

23 support beam

24 fixed plate

Detailed Description

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.

The basic principles and preferred embodiments of the present invention are discussed in more detail below with reference to the accompanying drawings.

Reference is first made to fig. 3 and 4, which show two states of a first embodiment of a copper bar connection piece according to the invention. In this embodiment, the first end and the second end of the copper bar connecting piece, which are opposite to each other, are respectively provided with a mounting hole 11. The mounting hole 11 on one side is used for connecting with a reactor, and the mounting hole 11 on the other side is used for connecting with a busbar in an industrial frequency converter. In addition, the copper bar connecting piece has two

bending sections

12 and 13, as shown in fig. 4. The copper bar connecting piece is respectively bent and formed along the two

bending sections

12 and 13, namely, bent into the state shown in fig. 3. As shown in fig. 4, the two

bending segments

12 and 13 are parallel to each other, and an angle is formed between the

bending segments

12 and 13 and the edge 14 of the copper bar connecting member.

In the first embodiment shown in fig. 3 and 4, the angle formed between the

bent segments

12 and 13 and the edge 14 of the copper bar connector is 45 degrees. In addition, the bending angle of the copper bar connecting piece along each bending section is 90 degrees, namely the included angle formed by the copper bars on two sides of the bending section after bending is 90 degrees, as shown in fig. 3. And, the copper bar connecting piece is bent at the two

bending sections

12 and 13 along the opposite rotation directions, i.e. in the embodiment of fig. 3, the copper bar connecting piece is rotated in the counterclockwise direction at the bending section 12 and in the clockwise direction at the bending section 13.

In the second embodiment shown in fig. 5 and 6, the angle formed between the

bent segments

12 and 13 and the edge 14 of the copper bar connecting element is 65 degrees. In addition, the bending angle of the copper bar connecting piece along each bending section is 100 degrees, that is, the included angle formed by the copper bars on the two sides of the bending section after bending is 100 degrees, as shown in fig. 5. And, the copper bar connecting piece is bent at the two bending sections along the same rotating direction (i.e. clockwise direction in fig. 5).

Turning now to fig. 1 and 2, this figure shows an application embodiment of the copper bar connection piece of the present invention. When applied to an industrial frequency converter, the copper bar connecting member is used to connect the reactor 20 and a bus bar (not shown).

Referring first to fig. 1, fig. 1 is an embodiment of a bottom reactor. The reactor 20 in the figure is a bottom reactor having three

terminals

21a, 21b, 21c arranged side by side. The first ends of the three copper bar connectors are connected to the three

terminals

21a, 21b, 21c, respectively, by fasteners that pass through the mounting holes. In addition, the second ends of the three copper bar connecting pieces are connected with a bus bar (not shown) of the industrial frequency converter.

In this embodiment of the bottom reactor, the copper bar connection in the first embodiment shown in fig. 3 and 4 is used. Wherein, the included angle formed between the bending

sections

12 and 13 and the edge 14 of the copper bar connecting piece is 45 degrees. In addition, the bending angle of the copper bar connecting piece along each bending section is 90 degrees, refer to fig. 3. And, the copper bar connecting piece is bent at the two bending

sections

12 and 13 along the opposite rotation directions, that is, in fig. 3, the copper bar connecting piece is rotated along the counterclockwise direction at the bending section 12 and rotated along the clockwise direction at the bending section 13.

As shown in fig. 1, a first terminal 21a of the three terminals is connected to a support beam 23 via a first insulating column (not shown). The support beam 23 may support the fixing plate 24. And, the second and

third terminals

21b, 21c among the three terminals are connected to a fixing plate 24 via second and third

insulating columns

22b, 22c, respectively, and then further connected to a supporting beam 23. The fixing plate 24 serves to support the second and third

insulating columns

22b and 22c, so that the copper bar connected to the second and third

insulating columns

22b and 22c is connected to the fixing plate 24 to perform a reinforcing function. In addition, the copper bar at the first insulating column is directly fixed and supported by the first insulating column.

Turning to fig. 2, fig. 2 is an embodiment of a top reactor. The reactor 20 in the figure is a top reactor. The same parts of this embodiment as those of the first embodiment shown in fig. 1 will not be described again. In an embodiment of the top reactor, the copper bar connection in the second embodiment shown in fig. 5 and 6 is used. Wherein, the included angle formed between the bending

sections

12 and 13 and the edge 14 of the copper bar connecting piece is 65 degrees. In addition, the bending angle of the copper bar connecting piece along each bending section is 100 degrees, refer to fig. 5. And, the copper bar connecting piece is bent at the two bending sections along the same rotating direction (i.e. clockwise direction in fig. 5). In addition, in this embodiment, the intervals between the two bending segments on the three copper bar connecting members are different from each other, as shown in fig. 2.

Can see through the comparison of fig. 1, 2, 4, 6, the utility model discloses a whole regular rectangle that is of copper bar connecting piece, and can be connected with two sets of three terminal structures that set up side by side through twice buckling. Such a set (e.g. three as shown in fig. 1 and 2) of copper bar connectors occupies a very limited space, and can be applied to industrial frequency converter cabinets of various specifications.

To sum up, the utility model discloses a copper bar connecting piece compact structure after bending is convenient for install in narrow and small space. In other words, through the design to the position and the angle of the limit of bending of copper bar connecting piece, the utility model discloses very limited space operation requirement, be applicable to the industry converter rack of any model in can satisfying the industry converter, also can save material, reduce cost.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. Copper bar connecting piece, its characterized in that, mounting hole (11) have been seted up respectively to the first end and the second end relative to each other of copper bar connecting piece, two sections of bending (12, 13) have on the copper bar connecting piece, the copper bar connecting piece respectively along two sections of bending shaping, wherein, two sections of bending are parallel to each other just bend the section with form a contained angle between the edge (14) of copper bar connecting piece.

2. The copper bar connection element according to claim 1, wherein the angle is 65 degrees and the bending angle of the copper bar connection element along each bending section (12, 13) is 100 degrees.

3. Copper busbar connection according to claim 2, wherein the copper busbar connection is bent at the two bending sections (12, 13) in the same direction of rotation.

4. The copper bar connection element according to claim 1, wherein the angle is 45 degrees and the bending angle of the copper bar connection element along each bending section (12, 13) is 90 degrees.

5. Copper busbar connection according to claim 4, wherein the copper busbar connection is bent at the two bending sections (12, 13) in mutually opposite directions of rotation.

6. Industrial frequency converter, characterized in that it comprises a reactor (20), a busbar and a copper bar connection according to claim 1,

the reactor is provided with three terminals (21a, 21b and 21c) which are arranged side by side, the first ends of three copper bar connecting pieces are respectively connected with the three terminals by fasteners which penetrate through the mounting holes (11), the second ends of the three copper bar connecting pieces are connected with a busbar of the industrial frequency converter,

wherein a first terminal (21a) of the three terminals is connected with a support beam (23) via a first insulating column;

wherein, the second and third terminals (21b, 21c) of the three terminals are respectively connected with a fixing plate (24) through second and third insulating columns (22b, 22c) and then further connected with the support beam.

7. Industrial transducer according to claim 6, characterized in that the reactor (20) is a top reactor, the angle is 65 degrees, the bending angle of the copper busbar connection along each bending section (12, 13) is 100 degrees, and the copper busbar connection is bent at both bending sections in the same direction of rotation.

8. Industrial frequency converter according to claim 7, characterized in that the spacing between the two bending sections (12, 13) on the three copper busbar connections differs from each other.

9. Industrial frequency converter according to claim 6, characterized in that the reactor (20) is a bottom reactor, the angle is 45 degrees, the bending angle of the copper busbar connection along each bending section (12, 13) is 90 degrees, and the copper busbar connection is bent at the two bending sections in mutually opposite rotational directions.