CN215377978U - Busbar device and power equipment - Google Patents

Abstract

The embodiment of the disclosure provides a busbar device and power equipment. This female device of arranging includes: the bus bar comprises a first bus bar, a second bus bar and a third bus bar which extend in parallel to each other along the vertical direction, wherein the first bus bar, the second bus bar and the third bus bar are superposed and spaced from each other; and at least two sets of conductive sleeves spaced apart from each other in a horizontal direction, each set of conductive sleeves extending in a vertical direction and including at least one conductive port, each conductive port including: the first wiring terminal is electrically connected with the first busbar; the second wiring terminal is electrically connected with the second busbar; and the third binding post is electrically connected with the third busbar. By superposing the three busbars, the busbar device with simple structure and small occupied space is obtained. The wiring terminal is adopted to connect the circuit breaker, so that the connection mode of the circuit breaker is simplified, and the assembly and maintenance of the circuit breaker are facilitated.

Description

Busbar device and power equipment

Technical Field

Embodiments of the present disclosure relate to electrical engineering equipment, and more particularly, to a busbar device and electrical equipment, such as a switchgear or a power distribution cabinet, including the busbar device.

Background

For power equipment with high density circuit breaker configuration, the traditional solution is implemented with fishbone row type mounting systems. In order to plug the circuit breaker into the fishbone-like mounting system, the circuit breaker with the corresponding fishbone-like structure needs to be designed or an adapter needs to be additionally configured on the existing circuit breaker, which causes the circuit breaker and the electronic equipment to be expensive. Moreover, the fishbone row mounting structure needs to be plugged from the side face, a large breaker plugging space needs to be reserved, and the space utilization rate in the power equipment is reduced.

Therefore, there is a need for an improved busbar device to solve the problems associated with high density installation of circuit breakers.

SUMMERY OF THE UTILITY MODEL

Traditional power equipment uses fish bone row class installing the system, has the problem that the price is expensive, the circuit breaker needs special design or increases adapter, cabinet body space utilization low grade. Embodiments of the present disclosure provide an improved busbar arrangement and power device to address or at least partially address the above and other potential problems.

In a first aspect of the present disclosure, a busbar device is provided. The female device that arranges includes: the method comprises the following steps: the bus bar comprises a first bus bar, a second bus bar and a third bus bar which extend in parallel to each other along the vertical direction, wherein the first bus bar, the second bus bar and the third bus bar are superposed and spaced from each other; and at least two sets of conductive sleeves spaced apart from each other in a horizontal direction, each set of conductive sleeves extending in a vertical direction and including at least one conductive port, each conductive port including: the first wiring terminal is electrically connected with the first busbar; the second wiring terminal is electrically connected with the second busbar; and the third binding post is electrically connected with the third busbar.

By superposing the three busbars, the busbar device with simple structure and small occupied space is obtained. At least two sets of conductive sleeves extend in a vertical direction and are spaced apart in a horizontal direction so that the circuit breakers can be assembled to the conductive sleeves column by column. This can increase the number of circuit breakers to be installed. The wiring terminal is adopted to connect the circuit breaker, so that the connection mode of the circuit breaker is simplified, and the assembly and maintenance of the circuit breaker are facilitated.

In some embodiments, an insulation sheet is disposed between adjacent busbars of the first busbar, the second busbar and the third busbar. Insulating piece can further improve the insulating level between the adjacent female row.

In some embodiments, the first busbar comprises a first through-hole; the second wiring terminal penetrates through the first through hole to be electrically connected with the second busbar, and the second wiring terminal is electrically insulated from the first busbar. Therefore, the bus bar device with a compact structure is realized. Compare with fish bone row class mounting structure, the installation and the dismantlement of circuit breaker no longer need great plug distance for the dismouting process of circuit breaker is simplified.

In some embodiments, the second terminal post includes an insulating layer disposed on a surface thereof to insulate the second terminal post from the first bus bar. The insulating layer can realize the insulating requirement between second terminal and the first female row.

In some embodiments, the first busbar comprises a second through hole, and the second busbar comprises a third through hole; the third wiring terminal penetrates through the second through hole and the third through hole and is electrically connected with the third busbar; the third binding post is electrically insulated from the first busbar and the second busbar. From this, the installation and the dismantlement of circuit breaker no longer need great plug distance for the dismouting process of circuit breaker obtains simplifying.

In some embodiments, the third terminal includes an insulating layer disposed on a surface thereof to insulate the third terminal from the first bus bar and the second bus bar. The insulating layer can realize the insulating requirement that third terminal and first female arranging and the female row of second.

In some embodiments, the busbar device further comprises a first sleeve made of an insulating material; the first wiring terminal is electrically connected to the first busbar through a first screw; wherein the first sleeve is sleeved on the head of the first screw. The first sleeve further improves the level of insulation between the first screw and the adjacent electrical conductor.

In some embodiments, the busbar device further comprises a second sleeve made of an insulating material; the second wiring terminal is electrically connected to the second busbar through a second screw; wherein the second sleeve is sleeved on the head of the second screw. The second sleeve further improves the level of insulation between the second screw and the adjacent electrical conductor.

In some embodiments, the busbar device further comprises a third sleeve made of an insulating material; the third binding post is electrically connected to the third busbar through a third screw; wherein the third sleeve is sleeved on the head of the third screw. The third sleeve further increases the level of insulation between the third screw and the adjacent conductor.

In some embodiments, the first, second, and third terminals are for connection to three respective conductive pins of a circuit breaker.

In a second aspect of the present disclosure, a power device is provided. The power equipment includes: an incoming conductor; a busbar arrangement according to the first aspect of the present disclosure; the first busbar, the second busbar and the third busbar are respectively electrically connected with one phase conductor of the incoming line conductor; a plurality of circuit breakers, each circuit breaker connected to a respective one of the conductive ports.

Through three female arranging of superpose, obtain simple structure and the little female device of arranging of occupation space, at least two sets of electrically conductive external member extend along vertical direction and along the spaced apart of horizontal direction for the circuit breaker can be assembled on electrically conductive external member one by one, has increased the circuit breaker quantity in the power equipment like this. The wiring terminal is adopted to connect the circuit breaker, so that the connection mode of the circuit breaker is simplified, and the assembly and maintenance of power equipment are facilitated.

In some embodiments, the power device is a power distribution cabinet or a switchgear.

It should be understood that this summary is not intended to identify key or essential features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present invention will become readily apparent from the following description.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present disclosure.

Fig. 1 shows a schematic diagram of a power plant according to an embodiment of the present disclosure;

fig. 2 shows a perspective view of a busbar arrangement according to an embodiment of the present disclosure;

figure 3 shows a perspective view of the busbar arrangement of figure 2 with parts omitted for clarity;

FIGS. 4A-4C show partial schematic views of a busbar of the busbar arrangement of FIG. 2;

fig. 5 shows a cross-sectional view of the busbar arrangement of fig. 2 to illustrate an exemplary connection of the first terminal stud;

fig. 6 shows a cross-sectional view of the busbar arrangement of fig. 2 to illustrate an exemplary connection of the second terminal stud;

fig. 7 shows a cross-sectional view of the busbar arrangement of fig. 2 to illustrate an exemplary connection of a third terminal stud;

fig. 8 shows a perspective view of a terminal post of a busbar arrangement according to the present disclosure;

fig. 9 shows a perspective view of an insulating sheet according to an embodiment of the present disclosure; and

fig. 10 illustrates a perspective view of an insulator according to an embodiment of the present disclosure.

The same or similar reference numbers will be used throughout the drawings to refer to the same or like elements.

Detailed Description

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

The present disclosure will now be described with reference to several example embodiments. It should be understood that these examples are described only for the purpose of enabling those skilled in the art to better understand and thereby enable the present disclosure, and are not intended to set forth any limitations on the scope of the technical solutions of the present disclosure.

As used herein, the term "include" and its variants are to be read as open-ended terms meaning "including, but not limited to. The term "based on" will be read as "based at least in part on". The terms "one embodiment" and "an embodiment" should be understood as "at least one embodiment". The term "another embodiment" should be understood as "at least one other embodiment". The terms "first," "second," and the like may refer to different or the same object. Other explicit and implicit definitions may be included below. The definitions of the terms are consistent throughout the specification unless the context clearly dictates otherwise.

The embodiment of the disclosure provides an improved busbar device and power equipment, which can realize standardization and miniaturization of the busbar device, increase the installation number of circuit breakers in the power equipment, reduce the cost of the power equipment, and facilitate the assembly and maintenance of the equipment.

Fig. 1 shows a schematic diagram of a power device according to an embodiment of the present disclosure. The power equipment comprises a cabinet body 1, an incoming conductor 50 (also called incoming busbar) in the cabinet body 1 and a busbar arrangement 10. The busbar arrangement 10 extends in a vertical direction and has one or more circuit breakers 2 mounted (e.g., removably mounted) thereon, thereby forming a circuit breaker high density mounted power apparatus. The power equipment may be a power distribution cabinet or a switchgear cabinet.

For clarity, only four circuit breakers 2 are shown in fig. 1 as being spaced apart, and in practice, a power apparatus may be provided with a plurality of circuit breakers 2. The circuit breakers 2 are closely arranged in the vertical direction Y, and the circuit breakers 2 are connected to the bus bar arrangement 10 through the conductive kits 101,102, thereby forming a high-density installation of the power equipment.

Fig. 2-3 illustrate perspective views of a busbar arrangement according to an embodiment of the present disclosure, with portions of the components (e.g., plate 140) hidden in fig. 3 for clarity of illustration. As shown in fig. 2 to 3, the busbar arrangement 10 includes a first busbar 110, a second busbar 120 and a third busbar 130 extending parallel to each other in a vertical direction Y. The first, second and third bus bars 110, 120 and 130 are stacked and spaced apart from each other. As shown in fig. 2, in a three-dimensional rectangular coordinate system XYZ, the first, second and third bus bars 110, 120 and 130 respectively extend parallel to each other along a vertical direction Y, and the first, second and third bus bars 110, 120 and 130 are superimposed and spaced apart from each other along a direction Z.

By superposing the three busbars, the busbar device 10 having a simple structure and a small occupied space is obtained. Due to the miniaturization of the busbar arrangement 10, it is facilitated to arrange more circuit breakers 2, for example, within the cabinet 1.

Referring again to fig. 1, the first busbar 110, the second busbar 120 and the third busbar 130 are electrically connected to one phase conductor of the incoming line conductor 50 (for example, including a phase, B phase and C phase). It should be understood that although fig. 1 shows a three-phase busbar arrangement 10, this is merely exemplary and is not intended to limit the scope of the present disclosure, for example, the busbar arrangement 10 of the present disclosure may also be a four-phase busbar arrangement.

The first, second and third busbars 110, 120 and 130 (and optionally the fourth busbar) may be secured to the plate 140 by bolts, whereby the plate 140 supports three or four busbars to form a modular and miniaturised busbar arrangement.

The busbar arrangement 10 further comprises at least two sets of conductive sleeves 101,102 spaced apart from each other in a horizontal direction X, each set 101 or 102 extending in a vertical direction Y and comprising at least one conductive port 20. Although two sets of conductive sleeves 101,102 are shown in fig. 2-3, the present disclosure is not limited to the number of conductive sleeves, for example, three or more sets may be provided.

Taking the two sets of conductive sleeves 101,102 shown in fig. 2-3 as an example, the first set of conductive sleeves 101 and the second set of conductive sleeves 102 are spaced apart along the horizontal direction X. Furthermore, the at least one conductive port 20 included in the first group of conductive sleeves 101 is arranged along the vertical direction Y, and the at least one conductive port 20 included in the second group of conductive sleeves 102 is also arranged along the vertical direction Y.

Each conductive port 20 includes a first terminal 21 electrically connected to the first bus bar 110, a second terminal 22 electrically connected to the second bus bar 120, and a third terminal 23 electrically connected to the third bus bar 130. It should be understood that in other embodiments, the conductive port 20 may further include a fourth terminal post for a four-phase busbar device.

The circuit breaker 2 may be electrically connected to the busbar device 10 through the conductive port 20. Therefore, the connection mode of the circuit breaker 2 is simplified, and the assembly and maintenance of the circuit breaker 2 are convenient. Moreover, the installation and the disassembly of the circuit breaker 2 do not need larger plugging distance any more, so that the disassembly and assembly process of the circuit breaker 2 is simplified.

Fig. 4A-4C show partial schematic views of a first busbar 110, a second busbar 120 and a third busbar 130, respectively. As shown in fig. 4A, the first busbar 110 includes a first via 1101 and a second via 1102. In some embodiments, the first busbar 110 may further include a through hole 1103 (shown in dotted lines). As shown in fig. 4B, the second busbar 120 includes a third through hole 1201. In some embodiments, the second busbar 120 may further include two additional through holes 1202 and 1203 (shown in dashed lines). In some embodiments, as shown in fig. 4C, the third busbar 130 may include through holes 1301, 1302, 1303 (shown in dashed lines).

Referring again to fig. 3, the first terminal 21 is electrically connected to the first bus bar 110. In some embodiments, the first terminal post 21 may be welded to the first busbar 110. In other embodiments, the first terminal 21 may be connected to the first busbar 110 by a first screw 210.

Referring to fig. 3 and 4A, the second terminal 22 is electrically connected to the second bus bar 120 through the first through hole 1101. And the second terminal 120 is insulated from the first bus bar 110. For example, an insulating layer (not shown) may be disposed on the second terminal 22, and the insulating layer may insulate the second terminal 120 from the first bus bar 110.

Referring to fig. 3 and 4A-4B, the third terminal 23 passes through the second through hole 1102 and the third through hole 1201 to be electrically connected to the third busbar 130. The third terminal 23 is insulated from the first bus bar 110 and the second bus bar 120. For example, an insulating layer (not shown) may be disposed on the third terminal 23, and the insulating layer may insulate the third terminal 130 from the first and second bus bars 110 and 120. In some embodiments, the second and third through- holes 1102, 1201 are coaxial.

Fig. 5 shows a cross-sectional view of the busbar device 10 of fig. 2 to illustrate an exemplary connection manner of the first terminal post 21. As shown in fig. 5, an insulation sheet 30 is disposed between adjacent busbars of the first busbar 110, the second busbar 120 and the third busbar 130. In some embodiments, the insulating sheet 30 may also be disposed on a side of the first busbar 110 adjacent to the circuit breaker 2.

As described above, the first terminal 21 may be connected to the first busbar 110 by the first screw 210. Specifically, the threaded end of the first screw 210 may be screwed to the first terminal 21 through the through hole 1103 of the first busbar 110, so that the first terminal 21 is in close contact with and electrically connected to the first busbar 110. The first terminal post 21 is used to electrically connect with a first conductive pin 51 of the circuit breaker.

In some embodiments, the busbar device 10 may further include a first sleeve 41 made of an insulating material. The first sleeve 41 may be sleeved on the head 2101 of the first screw 210 to further enhance the electrical insulation of the first screw 210 from the second and third bus bars 120, 130. In some embodiments, the first sleeve 41 may pass through the through holes 1303 of the third busbar 130, the through holes 1203 of the second busbar 120, and then be sleeved on the head 2101 of the first screw 210.

Fig. 6 shows a cross-sectional view of the busbar device 10 of fig. 2 to illustrate an exemplary connection of the second terminal post 22. The second terminal 22 passes through the first through hole 1101 and is electrically connected to the second busbar 120. In some embodiments, the second terminal post 22 may be soldered to the second busbar 120. In other embodiments, the second terminal 22 may be connected to the second busbar 120 by a second screw 220. Referring to fig. 6, the threaded end of the second screw 220 may be screwed to the second terminal 22 through the through hole 1202 of the second busbar 120, so that the second terminal 22 is in close contact with and electrically connected to the second busbar 120. The second terminal post 22 is adapted to electrically connect to a second conductive pin 52 of the circuit breaker.

In some embodiments, the busbar device 10 may include a second sleeve 42 made of an insulating material. The second sleeve 42 may be sleeved on the head 2201 of the second screw 220 to further enhance the electrical insulation of the second screw 220 from the third busbar 130. In some embodiments, the second sleeve 42 may pass through the through hole 1302 of the third busbar 130 and then be sleeved on the head 2201 of the second screw 220.

Fig. 7 shows a cross-sectional view of the busbar device 10 of fig. 2 to illustrate an exemplary connection manner of the third terminal 23. The third terminal 23 passes through the second through hole 1102 and the third through hole 1201 and is electrically connected to the third busbar 130. In some embodiments, the third terminal 23 may be soldered to the third bus bar 130. In other embodiments, the third terminal 23 may be connected to the third busbar 130 by a third screw 230. Referring to fig. 7, a threaded end of the third screw 230 may be screwed to the third terminal 23 through the through hole 1301 of the third busbar 130, so that the third terminal 23 is in close contact with and electrically connected to the third busbar 130. The third terminal 23 is used to electrically connect with a third conductive pin 53 of the circuit breaker.

In some embodiments, the busbar device 10 may include a third sleeve 43 made of an insulating material. The third sleeve 43 may be sleeved over the head 2301 of the third screw 230 to further enhance the electrical insulation of the third screw 230 from outside conductors.

As described above, the conductive pins 51,52,53 of the circuit breaker may be electrically connected to the terminal 20 or removed from the terminal 20. In some embodiments, the conductive pins 51,52,53 of the circuit breaker may be electrically connected to the conductive port 20 by locking screws; therefore, the cost of the circuit breaker can be further reduced, and the cost of the power equipment can be further reduced. In other embodiments, the conductive pins 51,52,53 of the circuit breaker can be plugged into the plug conductive ports 20, thereby forming a plug-in installation of the circuit breaker, which is simpler to install and remove. In other embodiments, the conversion base may be fixedly connected to the busbar device 10 and the plug terminals on the conversion base may be electrically connected to the conductive ports 20, such that the circuit breaker may be removably mounted to the conversion base.

Fig. 8 shows a perspective view of exemplary terminals 21,22,23 of the busbar arrangement 10 according to the present disclosure. Each of the first, second and third terminals 21,22,23 may be a plug-in type connector. The plug-in connector may include at least two elastic conductive pieces 24 (e.g., three or four or more conductive pieces), the at least two elastic conductive pieces 24 being capable of clamping the respective conductive pins 51,52,53 of the circuit breaker or releasing the respective conductive pins 51,52,53 of the circuit breaker, whereby the user may conveniently perform the plugging-in and unplugging between the circuit breaker and the terminal 20. In other embodiments, the terminals 21,22,23 may be cylindrical conductive cylinders without elastic conductive strips, so that the conductive pins 51,52,53 of the circuit breaker may be electrically connected to the terminals 21,22,23 by locking screws.

Fig. 9 shows a perspective view of an insulation sheet 30 according to an embodiment of the present disclosure. One or more insulation sheets 30 may be disposed between adjacent busbars of the first, second and third busbars 110, 120 and 130 to further enhance insulation reliability between the adjacent busbars.

Fig. 10 exemplarily illustrates a perspective view of an insulator 40 according to an embodiment of the present disclosure, which insulator 40 may include at least one of the first, second, and third sleeves 41, 42, 43 described previously.

It is to be understood that the above detailed embodiments of the disclosure are merely illustrative of or explaining the principles of the disclosure and are not limiting of the utility model. Therefore, any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the protection scope of the present invention. Also, it is intended that the appended claims cover all such changes and modifications that fall within the true scope and range of equivalents of the claims.

Claims (12)

1. A busbar device, comprising:

a first busbar (110), a second busbar (120) and a third busbar (130) extending parallel to each other in a vertical direction (Y), the first busbar (110), the second busbar (120) and the third busbar (130) being superimposed and spaced apart from each other; and

at least two sets of conductive sleeves (101, 102) spaced apart from each other along a horizontal direction (X), each set of conductive sleeves (101, 102) extending along the vertical direction (Y) and comprising at least one conductive port (20), each conductive port (20) comprising:

a first terminal (21) electrically connected to the first busbar (110);

a second terminal (22) electrically connected with the second busbar (120);

and the third binding post (23) is electrically connected with the third busbar (130).

2. The device according to claim 1, characterized in that insulating sheets (30) are arranged between adjacent busbars of the first busbar (110), the second busbar (120) and the third busbar (130).

3. The device according to claim 1, wherein the first busbar (110) comprises a first through hole (1101);

the second terminal (22) penetrates through the first through hole (1101) to be electrically connected with the second busbar (120), and the second terminal (22) is electrically insulated from the first busbar (110).

4. A device according to claim 3, characterized in that said second terminal stud (22) comprises an insulating layer arranged on its surface to insulate said second terminal stud (22) from said first busbar (110).

5. The device according to claim 3, wherein the first busbar (110) further comprises a second through hole (1102), and the second busbar (120) comprises a third through hole (1201);

the third binding post (23) penetrates through the second through hole (1102) and the third through hole (1201) and is electrically connected with the third busbar (130);

wherein the third terminal (23) is electrically insulated from the first busbar (110) and the second busbar (120).

6. The device according to claim 5, characterized in that said third terminal stud (23) comprises an insulating layer arranged on its surface to enable the insulation of said third terminal stud (23) from said first busbar (110) and said second busbar (120).

7. The device according to claim 1, characterized in that it further comprises a first sleeve (41) made of insulating material;

wherein the first terminal post (21) is electrically connected to the first busbar (110) by a first screw (210);

wherein the first sleeve (41) is fitted over the head of the first screw (210).

8. The device according to claim 1 or 7, characterized in that it further comprises a second sleeve (42) made of insulating material;

wherein the second terminal post (22) is electrically connected to the second busbar (120) by a second screw (220);

wherein the second sleeve (42) is fitted over the head of the second screw (220).

9. The device according to claim 8, characterized in that it further comprises a third sleeve (43) made of insulating material;

wherein the third terminal post (23) is electrically connected to the third busbar (130) by a third screw (230);

wherein the third sleeve (43) is fitted over the head of the third screw (230).

10. Device according to claim 1 or 9, characterized in that said first terminal (21), said second terminal (22), said third terminal (23) are intended to be connected to three respective conductive terminals of a circuit breaker.

11. An electrical device, comprising:

an incoming conductor;

-a busbar arrangement according to any of claims 1 to 10;

the first busbar (110), the second busbar (120) and the third busbar (130) are electrically connected with one phase conductor of the incoming line conductor respectively;

a plurality of circuit breakers (2), each circuit breaker (2) being connected to a respective one of the conductive ports (20).

12. The power device according to claim 11, characterized in that the power device is a switch board or a switch cabinet.

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