CN212676617U - Three-way conductive connection structure and switch cabinet with same - Google Patents

Abstract

The utility model relates to a three-way conductive connection structure and have its cubical switchboard. This three-dimensional electrically conductive connection structure, first electric conductor, second electric conductor and the third electric conductor that is triangle-shaped and arranges are connected respectively to its three-end, include: and a first multi-layered conductive bar having both ends connected to the first and second conductive bodies, respectively, the first multi-layered conductive bar being divided into a first partial conductive bar including a partial number of the first multi-layered conductive bar and a second partial conductive bar including the remaining number of the first multi-layered conductive bar along an extending direction thereof, the second partial conductive bar being configured into a first division section and a second division section spaced apart along the extending direction of the second partial conductive bar. And the two ends of the second multilayer conductive bar are respectively connected to the third conductor and the second partial conductive bar, the number of the layers of the second multilayer conductive bar is twice that of the second partial conductive bar, and the second multilayer conductive bar is divided into a third partial conductive bar and a fourth partial conductive bar along the extension direction of the second multilayer conductive bar, wherein the third partial conductive bar and the fourth partial conductive bar are both equal to the number of the layers of the second partial conductive bar.

Description

Three-way conductive connection structure and switch cabinet with same

Technical Field

The utility model relates to the technical field of electrical equipment, especially, relate to three-way to electric connection structure and have its cubical switchboard.

Background

When a complete set of switch cabinets needs to be connected with each other or when a single switch cabinet needs to be connected with other electrical equipment, the connection is usually performed by means of a bus bar bridge. Therefore, for a switch cabinet with a bus bar bridge, the conductive connection structure led out from the upper contact box of the switch cabinet needs to be divided into two paths in the bus bar chamber, one path is connected to the main bus bar in the bus bar chamber, and the other path is connected to the bus bar bridge on the top of the cabinet. In the prior art, a first conductive bar is usually adopted to connect an upper contact box and a cabinet top bus bridge, a second conductive bar is integrally bent to be attached to the first conductive bar for connection after being led out from a main bus, obviously, a lap joint can be generated in a bus chamber, only one lap joint surface exists between the two conductive bars at the lap joint position and serves as a conductive contact surface, the problem that the resistance value of a loop resistor is large, so that serious heating is easily caused is solved, the conductive bars for connection are usually of a multilayer structure, the thickness of the two multilayer conductive bars is at least formed at the lap joint position, and the problem that the occupied space is large and the safety distance is insufficient is easily caused is solved.

There is therefore a need in the art for a three-way conductive connection structure that has improved resistance to temperature rise and reduced space requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a three-way conductive connection structure that can solve above-mentioned part problem at least.

The utility model discloses still aim at providing an use above-mentioned modified three-way to electric connection structure's cubical switchboard.

According to the utility model discloses an aspect provides a three-dimensional electrically conductive connection structure, its three-end is connected respectively and is triangle-shaped's first electric conductor, second electric conductor and the third electric conductor of arranging, the three-dimensional electrically conductive connection structure includes: a first multi-layered conductive bar having both ends connected to the first and second conductive bodies, respectively, and divided along an extending direction thereof into a first partial conductive bar including a number of partial layers of the first multi-layered conductive bar and a second partial conductive bar including a remaining number of layers of the first multi-layered conductive bar, the second partial conductive bar being located at a side of the first partial conductive bar adjacent to the third conductive body, and the second partial conductive bar being configured as a first division section and a second division section spaced apart along the extending direction of the second partial conductive bar; and the two ends of the second multilayer conductive bar are respectively connected to the third conductor and the second partial conductive bar, the number of layers of the second multilayer conductive bar is twice the number of layers of the second partial conductive bar, the second multilayer conductive bar is divided into a third partial conductive bar and a fourth partial conductive bar along the extension direction of the second multilayer conductive bar, the number of layers of the third partial conductive bar is equal to that of the second partial conductive bar, each layer of the third partial conductive bar is connected with each layer of the first partial section of the second partial conductive bar in a one-to-one correspondence manner, and each layer of the fourth partial conductive bar is connected with each layer of the second partial section of the second partial conductive bar in a one-to-one correspondence manner.

Compared with the prior art, the three-way guiding connection structure in the utility model realizes the connection of the first conductor and the second conductor through the first part of the first multilayer conducting bar, realizes the connection of the third conductor and the first conductor through the first part section of the second part of the second multilayer conducting bar and the third part of the second multilayer conducting bar, and realizes the connection of the third conductor and the second conductor through the second part section of the second part of the second multilayer conducting bar and the fourth part of the second multilayer conducting bar, wherein the joint between the second multilayer conducting bar and the first multilayer conducting bar at least has the contact area between the third part conducting bar and the first part section and the contact area between the fourth part conducting bar and the second part section, thereby increasing the contact area between the second multilayer conducting bar and the first multilayer conducting bar, the loop resistance is reduced. In addition, the joint of the second multilayer conductive row and the first multilayer conductive row is at most provided with the superposition thickness of the third part of conductive row and the first segment or the superposition thickness of the fourth part of conductive row and the second segment, which is smaller than the superposition thickness of the second multilayer conductive row and the second part of conductive row of the first multilayer conductive row, thereby reducing the occupied space and further having larger safety distance margin.

Preferably, the third partial conductive row is integrally formed with the corresponding connected conductive row of the first segment of the second partial conductive row, and the fourth partial conductive row is integrally formed with the corresponding connected conductive row of the second segment of the second partial conductive row.

Preferably, the number of layers of the first multilayer conductive bar is two, where the number of layers of the first partial conductive bar is one, the number of layers of the second multilayer conductive bar is two, the number of layers of the third partial conductive bar is one, and the number of layers of the fourth partial conductive bar is one.

Preferably, the number of layers of the first multilayer conductive bar is designed to be three, where the number of layers of the first partial conductive bar is one, the number of layers of the second partial conductive bar is two, the number of layers of the second multilayer conductive bar is four, the number of layers of the third partial conductive bar is two, and the number of layers of the fourth partial conductive bar is two.

Preferably, the number of layers of the first multilayer conductive bar is designed to be four, where the number of layers of the first partial conductive bar is two, the number of layers of the second multilayer conductive bar is four, the number of layers of the third partial conductive bar is two, and the number of layers of the fourth partial conductive bar is two.

Preferably, the three-way conductive connection structure further comprises a support structure supporting the first multi-layer conductive bar.

Preferably, the support structure is configured to include an insulating support pedestal abutting a first portion of the first multilevel conductive row and a spacer block located between adjacent conductive rows in the first multilevel conductive row.

According to another aspect of the present invention, there is provided a switch cabinet, comprising the aforementioned three-way conductive connection structure.

Preferably, the first electrical conductor is configured as a single-phase upper stationary contact, the second electrical conductor is configured as a single-phase outer busbar in phase with the single-phase upper stationary contact, and the third electrical conductor is configured as a single-phase main busbar in phase with the single-phase upper stationary contact.

Preferably, the number of layers of the first multilayer conductive bar is equal to the number of layers of the single-phase main bus bar.

Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following, or may be learned from the practice of the invention.

Drawings

Embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein:

fig. 1 is a schematic cross-sectional view of a three-way conductive connection structure and a switchgear applied thereto according to the present invention, the rated current of the switchgear being 4000A;

fig. 2 is a schematic view of a three-way conductive connection structure according to the present invention applied to a 4000A switchgear;

fig. 3 is a schematic view of a three-way conductive connection structure according to the present invention applied to a 3150A switchgear;

fig. 4 is a schematic diagram of a three-way conductive connection structure according to the present invention, which is applied to a 5000A switch cabinet.

Description of reference numerals:

1-a switch cabinet; 11-a first electrical conductor; 12-a second electrical conductor; 13-a third electrical conductor; 14-a cabinet body; 2-three-way conductive connection structure; 21-a first multilayer conductive bar; 211 — a first partially conductive bar; 212-a second partially conductive bar; 2121-a first split section; 2121 a-an outer conductive bar of the first split segment; 2121b — an inner conductive bar of the first split segment; 2122-a second split section; 2122 a-an outer conductive bar of the second split segment; 2122 b-the inner conductive bar of the second split segment; 22-a second multilayer conductive bar; 221-a third partially conductive bar; 221 a-an outer conductive row of the third partial conductive row; 221 b-an inner conductive row of the third partial conductive row; 222-a fourth partial conductive bar; 222 a-an outer conductive row of the fourth partial conductive row; 222 b-an inner conductive row of the fourth partial conductive row; 23-a support structure; 231-an insulating support; 232-supporting cushion block.

Detailed Description

Referring now to the drawings, the three-way conductive connection structure disclosed in the present invention and the schematic scheme of the switchgear applied thereto will be described in detail. Although the drawings are provided to present some embodiments of the invention, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the disclosure of the present invention. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all drawings or examples.

Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "above", "below", and other directional terms, will be understood to have their normal meaning and refer to those directions as they normally relate to when viewing the drawings. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.

The terms "first," "second," and the like as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

The terms "joined," "connected," and the like as used herein, include both two components that are indirectly connected together through an intermediate layer (e.g., an adhesive, a solder, etc.) or an intermediate member (e.g., a connector, a transition member, etc.), and two components that are directly connected together without any intermediate layer (e.g., an adhesive, a solder, etc.) or intermediate member (e.g., a connector, a transition member, etc.).

Fig. 1 to 4 show by way of example a three-way conductive connection structure 2 of the invention and a switchgear 1 to which it is applied. The three-way conductive connection structure 2 in this example can be used in a switchgear cabinet 1 connected to an adjacent cabinet or to an external electrical device to establish a conductive path between a first electrical conductor 11, such as the above stationary contact, a second electrical conductor 12, such as an external busbar, and a third electrical conductor 13, such as a main busbar. The external bus bar may be a bus bar bridge structure in the prior art, and is not described in detail herein.

Exemplarily, the switch cabinet 1 may include a cabinet body 14 divided into a bus bar room, a circuit breaker room, a handcart room, an instrument room, and the like, a three-phase main bus bar distributed at intervals in the bus bar room, three-phase upper stationary contacts respectively and correspondingly connected to the three-phase main bus bar, and a three-phase external bus bar located at intervals on a cabinet top and correspondingly connected to the three-phase upper stationary contacts. With the understanding that the last static contact, the female and the main female arranging cophase that the three-phase conductive connection structure connects, then correspondingly, can include threely in the cubical switchboard 1 the utility model provides a three-dimensional conductive connection structure 2 to switch on the main female arranging of three-phase, going up static contact and the outside female arranging respectively.

As shown in fig. 1 to 4, the first conductor 11 and the second conductor 12 are located on the same straight line, and the third conductor 13 is located between the first conductor 11 and the second conductor 12 and on the left side of the first conductor 11 and the second conductor 12. The first conductor 11, the second conductor 12 and the third conductor 13 can be connected by a three-way conductive connection structure 2 comprising a first multilayer conductive bar 21 and a second multilayer conductive bar 22, wherein the three-way conductive connection structure 2 can be made of a conductive material such as copper, i.e. the first multilayer conductive bar 21 and the second multilayer conductive bar 22 can be copper bars.

In particular, the prior art generally includes switch cabinets 1 corresponding to various current levels, such as switch cabinets 1 with rated current 3150A (ampere), 4000A, 5000A, and the like. In order to meet the current-carrying capacity of the switch cabinet, the connection of the electrical elements in the switch cabinet 1 is usually realized by adopting copper bars with different layers.

For example, when the rated current is 3150A, as shown in fig. 3, the third electrical conductor 13 and the second electrical conductor 12 may be double-layer copper bars, and the first multi-layer conductive bar 21 may be double-layer copper bars. Both ends of the first multi-layered conductive bar 21 are connected to, e.g., bolted to, the first conductor 11 and the second conductor 12, respectively, and the first multi-layered conductive bar 21 may be divided into a first partial conductive bar 211 of one layer and a second partial conductive bar 212 of one layer in its extending direction. Wherein the second partially conductive bar 212 is located on a side of the first partially conductive bar 211 adjacent to the third conductive body 13 for connection to the third conductive body 13. And the second partially conductive bar 212 may have a first standoff segment 2121 and a second standoff segment 2122 spaced apart generally relative to a region of the third conductive body 13 in a direction of extension of the second partially conductive bar 212. It can be seen that the first and second body segments 2121 and 2122 are each a layer of copper bars.

The second multi-layered conductive row 22 has one end connected to the third conductive body 13, such as by a bolt, and the other end extending from the third conductive body 13 substantially transverse to the extending direction of the first multi-layered conductive row 21 and connected to the spaced end of the second partial conductive row 212, so that the third conductive body 13 is connected to the first conductive body 11 and the second conductive body 12. The second multi-layered conductive bar 22 may be divided into a layer of the third partial conductive bar 221 and a layer of the fourth partial conductive bar 222 along the extending direction thereof to correspond to the first segment 2121 of the second partial conductive bar 212 and the second segment 2122 of the second partial conductive bar 212, respectively. It can be seen that in order to connect the third partially conductive bar 221 to the first shunt segment 2121 one-to-one and the fourth partially conductive bar 222 to the second shunt segment 2122 one-to-one, the same number of conductive bars included in the first shunt segment 2121 and the second shunt segment 2122 is the number of layers of the second partially conductive bar 212, and thus the number of layers of the second multi-layered conductive bar 22 is twice that of the second partially conductive bar 212. Meanwhile, one end of the second multi-layer conductive row 22 adjacent to the third conductive body 13, that is, one end of the third partial conductive row 221 and one end of the fourth partial conductive row 222 adjacent to the third conductive body 13, overlap with the third conductive body 13 alternately to increase the contact area with the third conductive body 13.

Alternatively (not shown), the third partial conductor bar 221 may be bent toward the first body segment 2121 to extend against the outer surface of the first body segment 2121 and be connected using bolts, and the fourth partial conductor bar 222 may be bent toward the second body segment 2122 to extend against the outer surface of the second body segment 2122 and be connected using bolts, so that a contact surface exists between the third partial conductor bar 221 and the first body segment 2121 and between the fourth partial conductor bar 222 and the second body segment 2122 between the second multi-layered conductor bar 22 and the first multi-layered conductor bar 21, thereby increasing a contact area between the second multi-layered conductor bar 22 and the first multi-layered conductor bar 21 and further reducing loop resistance. And the junction of the third part conductive bar 221 and the first part section 2121 only has the thickness of two-layer copper bar, and the junction of the fourth part conductive bar 222 and the second part section 2122 only has the thickness of two-layer copper bar, has consequently also reduced the utility model discloses a three-way conductive connection structure 2 is here thickness to occupation space has been reduced, and then there is great safe distance surplus.

Alternatively (not shown), the third partial conductive strip 221 is bent to be positioned between the first partial conductive strip 2121 and the first partial conductive strip 211 and connected by bolts, so that a contact area between the third partial conductive strip 221 and the first partial conductive strip 2121 and a contact area between the third partial conductive strip 221 and the first partial conductive strip 211 exist between the second multi-layered conductive strip 22 and the first multi-layered conductive strip 21, thereby further reducing the loop resistance. The fourth partial conductive bar 222 and the second segment 2122 may be connected in a similar manner as the third partial conductive bar 221 and the first segment 2121.

Alternatively, as shown in FIG. 3, the third partially conductive bar 221 and the first segment 2121 may be integrally formed, and the fourth partially conductive bar 222 and the second segment 2122 may be integrally formed, so that the second multi-layered conductive bar 22 and the first multi-layered conductive bar 21 form a continuous current path, thereby further reducing the loop resistance. Moreover, the junction of the third partial conductive bar 221 and the first segment 2121 has only the thickness of a single layer of copper bar, and the junction of the fourth partial conductive bar 222 and the second segment 2122 also has only the thickness of a single layer of copper bar, which further reduces the occupied space. In addition, the amount of copper bars required at the junction of the third partial conductive bar 221 and the first body segment 2121 and the junction of the fourth partial conductive bar 222 and the second body segment 2122 is greatly reduced, thereby reducing the silver plating area required at the junction and the number of insulating protection boxes required, thereby greatly reducing costs. Wherein, the third partially conductive bar 221 and the first segment 2121 may be smoothly transited, and the fourth partially conductive bar 222 and the second segment 2122 may be smoothly transited.

In another example, when the rated current is 4000A, as shown in fig. 2, the third electrical conductor 13 and the second electrical conductor 12 can be three-layer copper bars, and the first multi-layer conductive bar 21 can be three-layer copper bars. The first multi-layered conductive bar 21 may be divided into a first partial conductive bar 211 of one layer and a second partial conductive bar 212 of two layers along an extending direction thereof. Wherein the second partially conductive bar 212 may have a first standoff section 2121 and a second standoff section 2122 spaced apart generally relative to a region of the third conductive body 13 in a direction of extension of the second partially conductive bar 212. It can be seen that the first and second split sections 2121 and 2122 are both two layers of copper bars.

Therein, the second multi-layered conductive bar 22 may be divided into two layers of the third partial conductive bar 221 and two layers of the fourth partial conductive bar 222 along the extending direction thereof to correspond to the first segment 2121 of the second partial conductive bar 212 and the second segment 2122 of the second partial conductive bar 212, respectively. The end of the second multi-layer conductive row 22 adjacent to the third conductive body 13, i.e., the end of the third partial conductive row 221 and the end of the fourth partial conductive row 222 adjacent to the third conductive body 13, collectively overlap the third conductive body 13.

Alternatively (not shown), the outer conductor row 221a of the third partial conductor row 221 is bent to abut the outer surface of the outer conductor row 2121a of the first body segment 2121, the inner conductor row 221b of the third partial conductor row 221 is bent to abut the outer surface of the inner conductor row 2121b of the first body segment 2121, i.e., is sandwiched between the outer conductor row 2121a and the inner conductor row 2121b of the first body segment 2121, the outer conductor row 222a of the fourth partial conductor row 222 is bent to abut the outer surface of the outer conductor row 2122a of the second body segment 2122, the inner conductor row 222b of the fourth partial conductor row 222 is bent to abut the outer surface of the inner conductor row 2122b of the second body segment 2122, i.e., is sandwiched between the outer conductor row 2122a and the inner conductor row 2122b of the second body segment 2122, and then there is a third partial conductor row 221 between the second multi-layer conductor row 22 and the first multi-layer conductor row 21 The contact area and the contact area between the third partial conductive row 221 and the outer and inner conductive rows 2121a and 2121b of the first body segment 2121, and the contact area between the fourth partial conductive row 222 and the outer conductive row 2122a of the second body segment 2122, and the contact area between the fourth partial conductive row 222 and the outer and inner conductive rows 2122a and 2122b of the second body segment 2122, thereby reducing the loop resistance. And the junction of the third part conductive bar 221 and the first part section 2121 only has the thickness of four layers of copper bars, and the junction of the fourth part conductive bar 222 and the second part section 2122 also only has the thickness of four layers of copper bars, consequently has also reduced the utility model discloses a three-way conductive connection structure 2 is here thickness to occupation space has been reduced, and then there is great safe distance surplus.

Alternatively (not shown), the outer conductor row 221a of the third partial conductor row 221 is bent to be sandwiched between the outer conductor row 2121a and the inner conductor row 2121b of the first partial conductor row 2121, and the inner conductor row 221b of the third partial conductor row 221 is bent to be sandwiched between the inner conductor row 2121b of the first partial conductor row 2121 and the first partial conductor row 211, so that there is a contact area between the outer conductor row 221a of the third partial conductor row 221 and the outer conductor row 2121a and the inner conductor row 2121b of the first partial conductor row 2121, and between the inner conductor row 221b of the third partial conductor row 221 and the inner conductor row 2121b and the first partial conductor row 211 of the first partial conductor row 2121, between the second multilayer conductor row 22 and the first multilayer conductor row 21, thereby further reducing the loop resistance. The fourth partial conductive bar 222 and the second segment 2122 may be connected in a similar manner as the third partial conductive bar 221 and the first segment 2121.

Alternatively, as shown in FIG. 2, the outer conductor row 221a of the third partial conductor row 221 may be integrally formed with the outer conductor row 2121a of the first body segment 2121, the inner conductor row 221b of the third partial conductor row 221 may be integrally formed with the inner conductor row 2121b of the first body segment 2121, the outer conductor row 222a of the fourth partial conductor row 222 may be integrally formed with the outer conductor row 2122a of the second body segment 2122, and the inner conductor row 222b of the fourth partial conductor row 222 may be integrally formed with the inner conductor row 2122b of the second body segment 2122, so that the second multilayer conductor row 22 and the first multilayer conductor row 21 form a continuous current path, thereby further reducing the loop resistance. And the junction of the third partial conductive bar 221 and the first segment 2121 has only two copper bars, and the junction of the fourth partial conductive bar 222 and the second segment 2122 also has only two copper bars, which further reduces the occupied space.

In another example, when the rated current is 5000A, as shown in fig. 4, the third electrical conductor 13 and the second electrical conductor 12 can be four layers of copper bars, and the first multi-layer conductive bar 21 can be four layers of copper bars. The first multi-layered conductive bar 21 may be divided into two layers of the first partial conductive bar 211 and two layers of the second partial conductive bar 212 along the extending direction thereof. Wherein the second partially conductive bar 212 may have a first standoff section 2121 and a second standoff section 2122 spaced apart generally relative to a region of the third conductive body 13 in a direction of extension of the second partially conductive bar 212. It can be seen that the first and second split sections 2121 and 2122 are both two layers of copper bars.

Therein, the second multi-layered conductive bar 22 may be divided into two layers of the third partial conductive bar 221 and two layers of the fourth partial conductive bar 222 along the extending direction thereof to correspond to the first segment 2121 of the second partial conductive bar 212 and the second segment 2122 of the second partial conductive bar 212, respectively. The end of the second multi-layer conductive row 22 adjacent to the third conductive body 13, i.e., the end of the third partial conductive row 221 and the end of the fourth partial conductive row 222 adjacent to the third conductive body 13, collectively overlap the third conductive body 13.

The connection of the third partially conductive bar 221 to the first segment 2121 and the connection of the fourth partially conductive bar 222 to the second segment 2122 may be similar to the example with the current rating of 4000A, and will not be described again.

Optionally, the three-way conductive connection structure 2 may further include a support structure 23 supporting the first multi-layered conductive row 21 distributed side by side. The support structure 23 may include an insulating support 231 fixed to the cabinet 14 and abutting the first partial conductor row 211 and a support block 232 positioned between adjacent ones of the first multi-layer conductor rows 21 to maintain the adjacent ones of the first multi-layer conductor rows 21 extending a longer distance side-by-side at a spaced apart side-by-side extension. The interval between adjacent conductive bars in the first multilayer conductive bar 21 and the second multilayer conductive bar 22 can be exactly set to the thickness of one copper bar, so as to be exactly overlapped to the first conductive body 11, the second conductive body 12 and the third conductive body 13 in a staggered manner, and reduce the required occupied space as much as possible.

It should be understood that although the description is 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 description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.

Claims (10)

1. A three-way conductive connection structure (2) having three ends respectively connected to a first conductor (11), a second conductor (12) and a third conductor (13) arranged in a triangular shape, the three-way conductive connection structure (2) comprising:

a first multi-layered conductive bar (21) having both ends connected to the first conductive body (11) and the second conductive body (12), respectively, and the first multi-layered conductive bar (21) being divided in an extending direction thereof into a first partial conductive bar (211) including a partial number of layers of the first multi-layered conductive bar (21) and a second partial conductive bar (212) including a remaining number of layers of the first multi-layered conductive bar (21), the second partial conductive bar (212) being located on a side of the first partial conductive bar (211) adjacent to the third conductive body (13), and the second partial conductive bar (212) being configured into a first partial section (2121) and a second partial section (2122) spaced apart in the extending direction of the second partial conductive bar (212);

and a second multilayer conductive bar (22), two ends of which are respectively connected to the third conductor (13) and the second partial conductive bar (212) and the number of layers of which is twice the number of layers of the second partial conductive bar (212), wherein the second multilayer conductive bar (22) is divided along the extending direction thereof into a third partial conductive bar (221) and a fourth partial conductive bar (222) which include the number of layers equal to the second partial conductive bar (212), each layer of the third partial conductive bar (221) is connected to each layer of the first partial section (2121) of the second partial conductive bar (212) in a one-to-one correspondence manner, and each layer of the fourth partial conductive bar (222) is connected to each layer of the second partial section (2122) of the second partial conductive bar (212) in a one-to-one correspondence manner.

2. The three-way conductive connection structure (2) according to claim 1,

the third partial conductive bar (221) is integrally formed with a corresponding connected conductive bar of the first segment (2121) of the second partial conductive bar (212), and the fourth partial conductive bar (222) is integrally formed with a corresponding connected conductive bar of the second segment (2122) of the second partial conductive bar (212).

3. The three-way conductive connection structure (2) according to claim 1, wherein the number of layers of the first multi-layer conductive row (21) is two, wherein the number of layers of the first partial conductive row (211) is one, the number of layers of the second partial conductive row (212) is one, the number of layers of the second multi-layer conductive row (22) is two, the number of layers of the third partial conductive row (221) is one, and the number of layers of the fourth partial conductive row (222) is one.

4. The three-way conductive connection structure (2) according to claim 1, wherein the number of layers of the first multi-layer conductive row (21) is designed to be three, wherein the number of layers of the first partial conductive row (211) is one, the number of layers of the second partial conductive row (212) is two, the number of layers of the second multi-layer conductive row (22) is four, the number of layers of the third partial conductive row (221) is two, and the number of layers of the fourth partial conductive row (222) is two.

5. The three-way conductive connection structure (2) according to claim 1, wherein the number of layers of the first multi-layer conductive row (21) is designed to be four, wherein the number of layers of the first partial conductive row (211) is two, the number of layers of the second partial conductive row (212) is two, the number of layers of the second multi-layer conductive row (22) is four, the number of layers of the third partial conductive row (221) is two, and the number of layers of the fourth partial conductive row (222) is two.

6. The three-way conductive connection structure (2) according to any one of claims 1 to 5, characterized in that said three-way conductive connection structure (2) further comprises a support structure (23) supporting said first multilayer conductive row (21).

7. The three-way conductive connection structure (2) according to claim 6, wherein the support structure (23) is configured to comprise an insulating support (231) abutting a first partial conductive row (211) of the first multi-layer conductive row (21) and a support pad (232) located between adjacent conductive rows of the first multi-layer conductive row (21).

8. A switchgear panel (1), characterized in that said switchgear panel (1) comprises a three-way electrically conductive connection (2) according to any of claims 1 to 7.

9. The switchgear panel (1) according to claim 8, wherein said first electrical conductor (11) is configured as a single-phase upper stationary contact, said second electrical conductor (12) is configured as a single-phase outer busbar in phase with said single-phase upper stationary contact, and said third electrical conductor (13) is configured as a single-phase main busbar in phase with said single-phase upper stationary contact.

10. The switchgear panel (1) according to claim 9, wherein the number of layers of said first multilayer conductive bar (21) is equal to the number of layers of said single phase main busbar.

Images