CN205790964U - A kind of bus connecting device - Google Patents

Abstract

The utility model discloses a kind of bus connecting device, it is characterized in that, including cushion block, cushion block be formed around four pieces of connecting plates, the two ends of four pieces of connecting plates are connected with two groups of bus-bars conductor groups outside it respectively, one end of every piece of connecting plate is all connected with a bus-bars conductor outside it, and often group bus-bars conductor group is made up of four bus-bars conductors, the cross sectional arrangements diamondwise shape of four bus-bars conductors.This utility model can connect the conductor of diamond array, has and connects reliable, easy for installation, to be prone to maintenance advantage, and make conductor diamond array technology be promoted, saves bus cost.

Description

A bus connection device

technical field

The utility model relates to a bus bar connecting device, which plays the role of connecting conductors in high and low voltage complete switchgear, and belongs to the field of power transmission and distribution equipment.

Background technique

The bus bar is a common electrical accessory in high and low voltage complete switchgear, which plays the role of transmitting current. In the case of a given temperature rise and cross-sectional area, the AC rating of the bus depends on the shape of the cross-section of its conductors. The AC rating of the rectangular conductors commonly used in complete switchgear depends on the arrangement of its conductors. . When the cross-section of the four rectangular conductors is arranged in a diamond shape, its AC rating is greater than that of other arrangements, which can effectively save the cost of the conductors, but it cannot be popularized and applied because of the difficulty in connection.

Contents of the invention

The technical problem to be solved by the utility model is: to provide a bus connection device with reliable connection, convenient installation, easy maintenance and easy promotion, which solves the difficulty in connection when four rectangular conductors with rhombus-shaped cross-section are used in the complete set of switchgear But the problem of not being able to promote the application.

In order to solve the above-mentioned technical problems, the technical solution of the utility model is to provide a bus connection device, which is characterized in that it includes a pad, four connecting plates are arranged around the pad, and the two ends of the four connecting plates are respectively connected to the outside Two sets of bus conductors are connected, and one end of each connecting plate is connected to a bus conductor outside it. Each bus conductor group is composed of four bus conductors, and the cross-section of the four bus conductors is arranged in a diamond shape.

Preferably, the spacer is a cuboid with a square cross section, and four connecting plates are placed around the spacer.

Preferably, two groups of holes perpendicular to each other and staggered forward and backward are provided on the four rectangular surfaces of the spacer.

Preferably, the two sets of busbar conductors are connected to the pads through two sets of bolts, and the two sets of bolts pass through the busbar conductors, the connecting plate and the pads sequentially in a manner of being mutually vertical and staggered back and forth.

The utility model can connect conductors arranged in rhombic shape, has the advantages of reliable connection, convenient installation, and easy maintenance, and can promote the diamond-shaped arrangement technology of conductors, saving the cost of the busbar.

Description of drawings

Figure 1 is a schematic diagram of the comparison of the AC rated current when the bus conductors are arranged in various ways;

Figure 2-1 is a schematic structural diagram of a bus connection device;

Figure 2-2 is a cross-sectional view of Figure 2-1;

Figure 2-3 is a top view of Figure 2-1.

detailed description

In order to make the utility model more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

List 7 kinds of busbar layout schemes, all of which have a cross-sectional area of 10000mm2 and approximate relative AC ratings, as shown in Figure 1. It can be seen that when the busbar section is arranged in a rhombus shape (that is, scheme 7), the rated value of the AC current it carries is 1.7 times that of the parallel arrangement (that is, scheme 1). Similarly, scheme 7 can save 41% of the busbar cost compared with scheme 1 when the same AC current rating is reached.

The utility model is a bus connecting device, which is used to connect four rectangular conductors arranged in a diamond shape, as shown in Fig. 2-1, Fig. 2-2, and Fig. 2-3. part, the four faces of the spacer 13 are provided with connecting plates, which are placed in the middle of the four busbar conductors arranged in a rhombus shape, and the connecting plates are connected by bolts. That is, the two ends of the four connecting plates are respectively connected to the two sets of bus conductors on the outside, and one end of each connecting plate is connected to a bus conductor on the outside. Each set of bus conductors is composed of four bus conductors. The cross-section of the four bus conductors Arranged in a rhombus shape, two groups of bolts 12 pass through the bus conductors, connection plates and pads 13 in a vertically staggered manner to press the bus conductors on the connection plates.

The spacer 13 is a rectangular cuboid whose cross section is square. On the four rectangular surfaces of the spacer 13, two groups of holes are arranged to be perpendicular to each other and staggered forward and backward. The connection plate is installed on the four rectangular surfaces of the spacer 13, the holes of the connection plate are concentric with the holes of the spacer 13, and the four conductors arranged in a rhombus are respectively clamped on the connection plates around the spacer 13, and the bolts 12 are used to pass through the busbar Conductor, connecting plate, spacer 13 are screwed tightly, and the busbar conductor is pressed on the connecting plate, and the busbar conductor is about to be connected with the busbar connecting device of the present utility model. The other end of the utility model adopts the same method to connect with another group of busbar conductors, thereby connecting the two groups of conductors.

To connect one set of busbar conductor sets to another set of busbar conductor sets, and in practical application, the cross-section of these conductors is arranged in a rhombus shape, the process is as follows:

First, the first connecting plate 9, the second connecting plate 10, the third connecting plate 11, and the fourth connecting plate 14 are respectively installed on the four faces of the pad 13, and then put into the middle of a group of busbar conductor groups (i.e. the first In the rhombus surrounded by the bus conductor 1, the second bus conductor 2, the third bus conductor 3, and the fourth bus conductor 4). Fasten a group of bolts 12 through the third busbar conductor 3, the second connecting plate 10, the spacer 13, the fourth connecting plate 14, and the first busbar conductor 1; then pass another group of bolts 12 through the second busbar The conductor 2, the third connecting plate 11, the spacer 13, the first connecting plate 9, and the fourth busbar conductor 4 are fastened afterward. In the same way, install another group of busbar conductors (i.e. the fifth busbar conductor 5, the sixth busbar conductor 6, the seventh busbar conductor 7, and the eighth busbar conductor 8) on the outer side of the pad 13 and the other end of the connecting plate , thus completing the connection of two sets of conductors.

Wherein, each group of bolts has at least two bolts 12 and nuts.

Claims (4)

1. A bus connection device is characterized in that it comprises a spacer (13), four connecting plates are arranged around the spacer (13), and the two ends of the four connecting plates are respectively connected to two groups of bus conductor groups on the outside thereof , one end of each connecting plate is connected to a bus conductor on its outer side, each bus conductor group is composed of four bus conductors, and the cross-sections of the four bus conductors are arranged in a rhombus shape. 2. A bus connection device according to claim 1, characterized in that, the spacer (13) is a cuboid with a square cross section, and four connection plates are placed around the spacer (13). 3. A bus connection device according to claim 2, characterized in that two groups of holes perpendicular to each other and staggered forward and backward are provided on the four rectangular surfaces of the spacer (13). 4. A bus connection device as claimed in claim 3, characterized in that, the two sets of bus conductors are connected to the block (13) by two sets of bolts (12), and the two sets of bolts (12) are perpendicular to each other. The front and rear staggered ways pass through the busbar conductors, connecting plates and pads (13) successively.