CN107887185B

CN107887185B - Bridging row and change-over switch assembly

Info

Publication number: CN107887185B
Application number: CN201610866690.8A
Authority: CN
Inventors: 宋建康; 周青山; 李棣楠; 刘明华; 陈尊跃
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 2016-09-29
Filing date: 2016-09-29
Publication date: 2021-01-29
Anticipated expiration: 2036-09-29
Also published as: EP3301695B1; EP3301695A1; CN107887185A

Abstract

Bridging row, which comprises a housing (12), a plurality of conducting rows (14) and a plurality of insulating plates (16). The housing is formed with a receiving cavity (123) extending in an extension direction (X). The plurality of conductive bars are arranged on the shell (12) at intervals in sequence along the arrangement direction (Y) perpendicular to the extension direction, and each conductive bar is provided with a plurality of bridging terminals which are arranged in sequence along the extension direction and can extend out of the shell. Each interval of the plurality of conductive rows is provided with an insulating plate to insulate and separate two adjacent conductive rows, and the length of the insulating plate in the extending direction is greater than that of the conductive rows in the extending direction. The bridging row has good dielectric property and can provide high-voltage resistance. A transfer switch assembly having the above-described bridging bank is also provided.

Description

Bridging row and change-over switch assembly

Technical Field

The present invention relates to a bridge bar, and more particularly, to a bridge bar of a transfer switch. The invention also relates to a change-over switch assembly with the bridging row.

Background

The transfer switch is a switching device for converting two or more power sources or loads, as shown in fig. 6, the transfer switch 20 has an input terminal 21 and an output terminal 22, the transfer switch 20 can be connected to a main power source 30 and a backup power source 40 via the input terminal 21, the output terminal 22 of the transfer switch 20 can be connected to the bridge bank 10, and the main power source 30 or the backup power source 40 is selected to be connected to the bridge bank 10 via the transfer switch 20.

To ensure the safety of use, the bridging row needs to have good dielectric properties to provide high voltage resistance.

Disclosure of Invention

The invention aims to provide a bridging row which has good dielectric property and can provide higher high-voltage resistance.

It is another object of the present invention to provide a transfer switch assembly having a bridging bank.

The invention provides a bridging bar which comprises a shell, a plurality of conducting bars and a plurality of insulating plates. The shell is provided with an accommodating cavity extending along an extending direction. The plurality of conductive bars are arranged in the shell at intervals in sequence along the arrangement direction perpendicular to the extension direction, and each conductive bar is provided with a plurality of bridging terminals which are arranged in sequence along the extension direction and can extend out of the shell. Each interval of the plurality of conductive rows is provided with an insulating plate to insulate and separate two adjacent conductive rows, and the length of the insulating plate in the extending direction is greater than that of the conductive rows in the extending direction. Between two adjacent conductive bars, because the length of insulating board in extending direction will be greater than the length of conductive bar, make the creepage distance of conductive bar in extending direction X increase to improve the dielectric property between two conductive bars, thereby improve the holistic high pressure resistant ability of bridging row.

In an exemplary embodiment of the bridging row, each conductive row has two bridging terminals, and the two bridging terminals are respectively disposed at two ends of one conductive row in the extending direction.

In an exemplary embodiment of the bridge row, the lengths of the conductive rows in the extending direction are equal, and the bridge terminals of the conductive rows on the same side in the extending direction are sequentially arranged at intervals along the extending direction. After the design is adopted, the arrangement of all the bridging terminals on the shell can be more facilitated.

In an exemplary embodiment of the bridging row, the insulating plates are equal in length in the direction of extension. The design is favorable for the integral arrangement of the bridging row.

In an exemplary embodiment of the bridging row, the insulation plate extends through the receiving cavity in the extension direction, providing the longest creepage distance.

In an exemplary embodiment of the bridging row, the housing comprises in sequence a main body shell and a base plate in a mounting direction perpendicular to the extension direction and the arrangement direction. The main body shell forms an accommodating cavity, and the bottom plate can seal the accommodating cavity. The above design facilitates the overall assembly of the bridging row.

In an exemplary embodiment of the bridge bar, a plurality of pairs of supporting members are disposed on a side of the bottom plate facing the accommodating cavity, one pair of supporting members corresponds to one conductive bar, and the supporting members can abut against the conductive bar in the installation direction. The support member of the above design facilitates positioning of the conductive bars.

In an exemplary embodiment of the bridging row, the insulating plate can project between two supports adjacent in the direction of the row. The above design makes the overall structure more stable.

In an exemplary embodiment of the bridging row, two rows of positioning elements are further disposed on a side of the bottom plate facing the accommodating cavity, and the two rows of positioning elements are disposed on two sides of the plurality of insulating plates in the arrangement direction. The above design makes the overall structure more stable.

The invention also provides a transfer switch assembly comprising a transfer switch and a bridging bank. The transfer switch has a plurality of output terminals to which the bridge terminals of the bridge bank can be connected.

The above features, technical features, advantages and implementations of the bridge bank and the diverter switch assembly will be further described in the following detailed description of preferred embodiments in a clearly understandable manner in conjunction with the accompanying drawings.

Drawings

The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.

Figure 1 is a schematic diagram illustrating the structure of one exemplary embodiment of a bridging row,

figure 2 is a schematic exploded view of the bridging row shown in figure 1,

figure 3 is a diagram illustrating the arrangement of the conductive bars and the insulating plates,

figure 4 is a partial schematic diagram illustrating an exemplary embodiment of a bridging row,

figure 5 is a schematic diagram illustrating the layout between the base plate of the bridging row, the conductive row and the insulating plate,

FIG. 6 is a schematic diagram illustrating an exemplary embodiment of a transfer switch assembly.

Description of the reference symbols

12 casing

122 main body case

123 accommodating cavity

124 bottom plate

125 supporting piece

126 locating element

14 conducting bar

142 bridging terminal

16 insulating plate

20 change-over switch

21 input terminal

22 output terminals.

Detailed Description

In order to more clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals indicate the same or structurally similar but functionally identical elements.

"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, for simplicity and clarity of understanding, only one of the components having the same structure or function is schematically illustrated or labeled in some of the drawings.

In this document, "first", "second", and the like are used only for distinguishing one from another, and do not indicate their degree of importance, order, and the like.

In this context, "perpendicular" and the like are not strictly mathematical and/or geometric limitations, but also include tolerances as would be understood by one skilled in the art and allowed for manufacturing or use.

FIG. 1 is a schematic diagram illustrating an exemplary embodiment of a bridging row. As shown in fig. 1, the bridge row includes a housing 12, and other components are disposed in the housing, specifically referring to fig. 2, as shown in fig. 2, the housing 12 is formed with a receiving cavity 123, and the receiving cavity 123 extends along an extending direction X in the drawing.

The bridging row further comprises four conducting rows 14 and three insulating plates 16. The four conductive bars 14 are sequentially disposed at intervals in the arrangement direction Y perpendicular to the extension direction X in the housing 12, and each conductive bar 14 has two bridging terminals 142 sequentially arranged in the extension direction X and capable of extending out of the housing 12. One insulating plate 16 is disposed at intervals between each of the four conductive rows 14 to insulate and separate two adjacent conductive rows 14, and the length of the insulating plate 16 in the extending direction X is greater than that of the conductive rows in the extending direction X, as can be seen in fig. 3.

After the design is adopted, in addition to the separation between two adjacent conductive bars 14 by the insulating plate 16, the length of the insulating plate in the extending direction X is greater than the length of the conductive bar 14, so that the creepage distance of the conductive bar 14 in the extending direction X is increased, the dielectric performance between the two conductive bars 14 is improved, and the overall high voltage resistance of the bridging bar is improved. Wherein, those skilled in the art will understand that the number of the conductive bars 14 and the insulating plates 16 is not limited to that shown in the figures.

In the embodiment shown in fig. 2, each conductive bar 14 has two bridge terminals 142, and the two bridge terminals 142 are respectively disposed at two ends of one conductive bar 14 in the extending direction X. The two bridge terminals 142 are adapted to control a transfer switch for two-way power or load transfer. Of course, according to different design requirements, each conductive bar 14 may also be designed with a greater number of bridging terminals 142 to adapt to a change-over switch for controlling the switching of two or more power sources or loads, and the bridging terminals 142 may not be disposed at the ends of the conductive bar 14.

In the embodiment shown in fig. 2 and 3, in the case that two bridge terminals 142 are respectively disposed at two ends of one conductive bar 14 in the extending direction X, the lengths of the conductive bars 14 in the extending direction X are equal, and the bridge terminals 142 of the conductive bars 14 on the same side in the extending direction X are sequentially arranged at intervals along the extending direction X. With the above design, the arrangement of all the bridge terminals 142 on the housing 12 can be more facilitated (see fig. 1 at the same time). Of course, other designs of the conductive bars 14 may be used according to different design requirements, so that the bridge terminals 142 are not arranged in the sequence shown in the figure.

In the embodiment shown in fig. 2 and 3, the insulating plates 16 are equal in length in the extending direction X. With such a design, the overall arrangement of the bridging row is facilitated, and particularly, the insulation board 16 penetrates through the accommodating cavity 123 in the extending direction X, so that even if the two ends of the insulation board 16 in the extending direction X are respectively abutted to the housing 12, the longest creepage distance can be provided. Of course, the lengths of the insulating plates 16 in the extending direction X may be different according to design requirements.

In the embodiment shown in fig. 2, the housing 12 (see fig. 1) comprises in sequence, in a mounting direction Z perpendicular to the extension direction X and the arrangement direction Y, a main body shell 122 and a base plate 124. The body case 122 forms a receiving chamber 123, and the bottom plate 124 can close the receiving chamber 123. The above design facilitates the overall assembly of the bridging row, as shown in fig. 4, in the embodiment shown in fig. 4, four pairs of supporting members 125 are disposed on a side of the bottom plate 124 facing the accommodating cavity 123 (see fig. 2), and one pair of supporting members 125 corresponds to one conductive row 14 (only one is labeled in the figure), that is, as can be seen from the figure, one pair of supporting members 125 corresponds to each other in the extending direction X. With simultaneous reference to fig. 5, the support 125 can abut against the conductor bar 14 in the mounting direction Z. The support 125 aids in positioning the conductive bar 14.

As shown in fig. 5, the insulating plate 16 can extend between two adjacent supporting members 125 in the arrangement direction Y, so that the length of the insulating plate 16 in the installation direction Z is also greater than that of the conductive bars 14 in the housing 12, thereby increasing the creepage distance between the adjacent conductive bars 14 in the installation direction Z and improving the dielectric performance between the two conductive bars 14. And because the insulating board 16 stretches into between two adjacent supporting pieces 125 in the arrangement direction Y, the supporting pieces 125 can limit the insulating board 16 and the conductive bar 14 in the arrangement direction Y, so that the overall structure is more stable.

In the embodiment shown in fig. 4, two rows of positioning elements 126 are further disposed on a side of the bottom plate 124 facing the accommodating cavity 123 (see fig. 2), and the two rows of positioning elements 126 are disposed on two sides of the plurality of insulating plates 16 in the arrangement direction Y, and may be used to further limit the position of the insulating plates 16 and the conductive bars 14 in the arrangement direction Y, so that the overall structure is more stable.

The present invention also provides a diverter switch assembly, as shown in fig. 6, which includes a diverter switch 20 and one of the above-described bridging banks 10. The transfer switch 20 has a plurality of output terminals 22. The bridge terminals 142 of the bridge bank 10 can be connected to the output terminals 22.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications such as combinations, divisions or repetitions of features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.

Claims

1. Bridging row, its characterized in that, it includes:

a housing (12) formed with a housing cavity (123) extending in an extension direction (X);

the conductive bars (14) are sequentially arranged on the shell (12) at intervals along an arrangement direction (Y) perpendicular to the extension direction (X), and each conductive bar (14) is provided with a plurality of bridging terminals (142) which are sequentially arranged along the extension direction (X) and can extend out of the shell (12); and

a plurality of insulating plates (16) arranged in the accommodating cavity (123), wherein one insulating plate (16) is arranged at intervals in each of the plurality of conductive bars (14) to insulate and separate two adjacent conductive bars (14), and the length of the insulating plate (16) in the extending direction (X) is greater than that of the conductive bars in the extending direction (X); wherein the content of the first and second substances,

in an installation direction (Z) perpendicular to the extension direction (X) and the arrangement direction (Y), the housing (12) sequentially comprises a main body shell (122) and a bottom plate (124), the main body shell (122) forms the accommodating cavity (123), and the bottom plate (124) can close the accommodating cavity (123); a plurality of pairs of supporting pieces (125) are arranged on one side, facing the accommodating cavity (123), of the bottom plate (124), the pair of supporting pieces (125) correspond to one conductive bar (14), the supporting pieces (125) can abut against the conductive bar (14) in the installation direction (Z), and the insulating plate (16) can extend into the space between two adjacent supporting pieces (125) in the arrangement direction (Y); the distance between the conductive bar (14) and the surface of the bottom plate (124) is greater than the distance between the insulating plate (16) and the surface of the bottom plate (124) along the mounting direction (Z).

2. Bridging bar according to claim 1, characterized in that each of said conductive bars (14) has two of said bridging terminals (142), said two bridging terminals (142) being respectively arranged at both ends of one of said conductive bars (14) in said extension direction (X).

3. The bridging bar according to claim 2, wherein the lengths of the conductive bars (14) in the extending direction (X) are equal, and the bridging terminals (142) of the conductive bars (14) on the same side in the extending direction (X) are sequentially arranged at intervals along the extending direction (X).

4. A bridging row according to claim 1, characterised in that the lengths of the insulating plates (16) in the direction of extension (X) are equal.

5. Bridging row according to claim 4, characterized in that the insulating plate (16) passes through the housing cavity (123) in the extension direction (X).

6. The bridging row according to claim 1, wherein two rows of positioning elements (126) are further disposed on a side of the bottom plate (124) facing the accommodating cavity (123), and the two rows of positioning elements (126) are disposed on two sides of the plurality of insulating plates (16) in the arrangement direction (Y).

7. A transfer switch assembly, comprising:

a transfer switch (20), said transfer switch (20) having a plurality of output terminals (22);

a bridging row (10) according to any one of claims 1 to 6, the bridging terminals (142) of the bridging row (10) being connectable to the output terminals (22).