Bus duct assembly, bus duct connector and spacing board thereof

Abstract

The embodiment of the utility model provides a bus duct assembly, a bus duct connector and a spacing board of the bus duct connector. The spacing board of the bus duct connector comprises a spacing board body which comprises a first surface and a second surface which are deviated from each other; the at least one conduction piece is mounted in the partition plate body; the first conductor is fixed on the first surface; and the second conductor is fixed on the second surface, and the second conductor is conducted with the first conductor through the at least one conducting piece. When the spacing board is applied to a bus duct connector, two adjacent phase lines of a bus duct can be easily connected in parallel without additionally arranging devices. In addition, the temperature rise of a plurality of phase lines connected in parallel through the bus duct connector is relatively balanced, and the performance of the bus duct can be improved.

Description

Technical Field

[0001] The embodiments of this disclosure generally relate to a busbar assembly, a busbar connector, and a spacer plate thereof. Background Technology

[0002] Busbar trunking is a current transmission device widely used in electrical equipment and power systems in civil buildings, factories, and other applications. Two busbar trunking sections and the busbar trunking connectors used to connect them can be collectively referred to as a busbar trunking assembly.

[0003] Busbar duct assemblies are primarily used in AC applications. For busbar ducts with four phase conductors (also known as A-phase, B-phase, C-phase, and N-phase conductors), the four phase conductors are mutually insulated. When busbar ducts are used in DC applications, the A-phase and B-phase conductors need to be connected in parallel as one phase to serve as the positive phase conductor, and the C-phase and N-phase conductors need to be connected in parallel as one phase to serve as the negative phase conductor.

[0004] In related technologies, special flanges are installed at both ends of a circuit composed of multiple busbar assemblies, allowing the four phase lines of the busbar to be connected in parallel in pairs at these flanges. However, for circuits with long current transmission distances, if there is a power-receiving device in the middle, and the four phases are only connected in parallel in pairs at both ends of the circuit, the temperature rise will differ due to current imbalance, thus affecting the performance of the busbar. Utility Model Content

[0005] The purpose of this disclosure is to provide a busbar trunking assembly, a busbar trunking connector, and a spacer plate thereof to at least partially solve the above-mentioned problems.

[0006] In a first aspect of this disclosure, a spacer for a busbar connector is provided, comprising: a spacer body including a first surface and a second surface facing away from each other; at least one conductive element installed in the spacer body; a first conductor fixed on the first surface; and a second conductor fixed on the second surface, wherein the second conductor is connected to the first conductor through the at least one conductive element.

[0007] In some embodiments, the partition body is provided with at least one through hole, and the at least one conductive element is fitted into the at least one through hole.

[0008] In some embodiments, the at least one conductive element is integrally formed with the first conductor or the second conductor.

[0009] In some embodiments, the partition body is integrally formed with the at least one conductive element by injection molding.

[0010] In some embodiments, the partition body is provided with mounting holes for fasteners to pass through, the partition body is equipped with two of the conductive members, and the two conductive members are arranged at intervals along the length direction of the partition body and are located on opposite sides of the mounting holes.

[0011] In some embodiments, the partition body is provided with a mounting hole for fasteners to pass through, and a first sleeve portion and a second sleeve portion arranged around the mounting hole, wherein the first sleeve portion extends outward from the first surface, and the second sleeve portion extends outward from the second surface; and the first conductor has a first connection hole fitted onto the first sleeve portion, and the second conductor has a second connection hole fitted onto the second sleeve portion.

[0012] In some embodiments, the first connecting hole and the second connecting hole are both rectangular holes with the same size; and / or, the end face of the first sleeve portion is provided with an annular sleeve portion, the annular sleeve portion being used to insert into the sleeve portion of the spacer plate adjacent to the first surface, and the second sleeve portion being used to insert into the sleeve portion of the spacer plate adjacent to the second surface.

[0013] In a second aspect of this disclosure, a busbar connector is provided, comprising: two end caps disposed opposite to each other; a plurality of spacers disposed between the two end caps, at least two of the plurality of spacers being spacers according to a first aspect of this disclosure; and a fastener assembly for securing the two end caps and the plurality of spacers together.

[0014] In some embodiments, the plurality of spacers includes a first spacer, a second spacer, a third spacer, a fourth spacer, and a fifth spacer arranged sequentially, wherein the second spacer and the fourth spacer are spacers according to a first aspect of the present disclosure.

[0015] In a third aspect of this disclosure, a busbar assembly is provided, comprising: two busbars; and a busbar connector as described in a second aspect of this disclosure, the busbar connector being connected between the two busbars.

[0016] In embodiments according to this disclosure, a first conductor on the first surface and a second conductor on the second surface of the spacer plate of the busbar connector are connected by a conductive element. This allows different phase lines of the busbar to be connected in parallel within the busbar connector via the spacer plate, enabling the busbar to be used in DC applications. Furthermore, the parallel connection of different phase lines via the spacer plate conducts both electricity and heat, resulting in a more uniform temperature distribution between the phase lines and thus improving the performance of the busbar. Additionally, the parallel connection of different phase lines of the busbar can be achieved without adding any other components outside the busbar connector, helping to reduce circuit costs.

[0017] It should be understood that the content described in this section is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0018] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0019] Figure 1 A perspective view of a spacer plate of a busbar connector according to an embodiment of the present disclosure is shown;

[0020] Figure 2 It shows along Figure 1 The three-dimensional sectional view shown is cut by the section line HH.

[0021] Figure 3 It shows Figure 1 An exploded view of the spacer plate shown.

[0022] Figure 4 A perspective view of a busbar connector according to an embodiment of the present disclosure is shown;

[0023] Figure 5 It shows along Figure 4 The section view shown is taken by the cut line DD;

[0024] Figure 6 It shows Figure 5 Enlarged view of section E in the image;

[0025] Figure 7 It shows Figure 4 An exploded view of the busbar connector shown.

[0026] Figure 8 A perspective view of a busbar assembly according to an embodiment of the present disclosure is shown;

[0027] Figure 9 It shows along Figure 8 The sectional view shown is taken by the section line FF; and

[0028] Figure 10 It shows Figure 9 A magnified view of point G in the image. Detailed Implementation

[0029] Preferred embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0030] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects.

[0031] As described above, busbar assemblies are primarily used in AC applications, where the four phase conductors of the busbar remain mutually insulated within the circuit. When busbar assemblies are applied to DC applications, the four phase conductors need to be connected in parallel to form two phase conductors. However, the parallel connection schemes in some technologies can lead to significant differences in temperature rise between the different phase conductors within the circuit, affecting the performance of the busbar.

[0032] The embodiments of this disclosure provide a busbar assembly 1000, a busbar connector 100, and a spacer plate 10 thereof. The busbar 50 of the busbar assembly 1000 is connected via the busbar connector 100 provided according to the embodiments of this disclosure. This allows the four-phase lines of the busbar 50 to be connected in parallel as two-phase lines without the need for additional components. Furthermore, it helps to alleviate the problem of significant temperature rise differences between different phase lines within the circuit, thereby improving the performance of the busbar. In the following, [further details will be provided in conjunction with...] Figures 1 to 10 The principles of this disclosure are described.

[0033] Figures 1 to 3 A schematic diagram of the structure of the spacer plate 10 of a busbar connector 100 according to an embodiment of the present disclosure is shown. Figures 4 to 7 A schematic diagram of a busbar connector 100 according to an embodiment of the present disclosure is shown, which has a spacer plate 10 of the busbar connector 100 according to an embodiment of the present disclosure. Figures 8 to 10 A schematic diagram of a bus trunking assembly 1000 according to an embodiment of the present disclosure is shown, which has a bus trunking connector 100 according to an embodiment of the present disclosure.

[0034] The following text first combines Figures 1 to 3The structure of the spacer 10 (hereinafter referred to as spacer 10) of the busbar connector 100 provided according to the embodiments of this disclosure will be described in detail. The spacer 10 mainly includes a spacer body 11, two conductive members 12, a first conductor 13 and a second conductor 14.

[0035] In some embodiments, the partition body 11 is a flat insulating partition. The partition body 11 includes a first surface 111 and a second surface 112 that are opposite to each other. In some embodiments, the partition body 11 is made of an insulating material.

[0036] The first conductor 13 and the second conductor 14 are both flat plates. The first conductor 13 is fixed to the first surface 111 of the partition body 11, and the second conductor 14 is fixed to the second surface 112 of the partition body 11. The first conductor 13 and the second conductor 14 can be made of copper or aluminum. The materials of the first conductor 13 and the second conductor 14 can also have good thermal conductivity.

[0037] The first conductor 13 and the second conductor 14 can also be referred to as "bar". Depending on the materials used, the first conductor 13 and the second conductor 14 can have different names. For example, when the first conductor 13 and the second conductor 14 are made of copper, they can be called "copper bar". When the first conductor 13 and the second conductor 14 are made of aluminum, they can be called "aluminum bar". Of course, the materials used for the first conductor 13 and the second conductor 14 are not limited to copper and aluminum.

[0038] Two conductive elements 12 are installed in the partition body 11. Each conductive element 12 can be made of any suitable conductive material. The material of each conductive element 12 can also have good thermal conductivity. Figure 2 It can be seen that the first conductor 13 and the second conductor 14 are in contact with each of the conductive elements 12 respectively, and the first conductor 13 is connected to the second conductor 14 through each of the conductive elements 12.

[0039] In some embodiments, the first conductor 13, the second conductor 14, and each conductive element 12 may be made of the same material to have substantially the same electrical and thermal conductivity. Of course, in some alternative embodiments, the materials of the first conductor 13, the second conductor 14, and each conductive element 12 may also be implemented in other ways. For example, the first conductor 13 and the second conductor 14 may be made of the same material, while the first conductor 13 and the conductive elements 12 may be made of different materials.

[0040] For busbar connectors used in AC applications, the partition body 11 of the relevant technology does not have a conductive element 12. The first conductor 13 and the second conductor 14 on the two surfaces of the partition body 11 are insulated from each other. More specifically, the first conductor 13 contacts a pair of corresponding phase lines of the two busbars (taking the A-phase line of the two busbars as an example), thereby conducting the pair of corresponding A-phase lines of the two busbars. The second conductor 14 contacts another pair of corresponding phase lines of the two busbars (taking the B-phase line adjacent to the A-phase line as an example), thereby conducting the other pair of corresponding B-phase lines of the two busbars. The A-phase lines of the two busbars conducted by the first conductor 13 and the B-phase lines of the two busbars conducted by the second conductor 14 are insulated from each other. As mentioned above, when this type of busbar connector is used in DC applications, special flanges can be installed at both ends of the circuit to connect the four phase lines of the busbars in parallel at both ends of the circuit. However, the A-phase and B-phase lines of each busbar trunking inside the circuit are insulated from each other. If there is a power-receiving device in the middle of the circuit, the temperature rise difference between the A-phase and B-phase lines will be significant due to current imbalance, which will affect the performance of the busbar trunking.

[0041] When the spacer 10 provided in this embodiment is applied to the busbar connector 100, two adjacent busbars 50 can be connected through the busbar connector 100, which means it can be applied to DC applications. For example, see... Figure 9 The A-phase wires 52 of the two busbar slots 50 are connected through the first conductor 13, and the B-phase wires 53 are connected through the second conductor 14. Simultaneously, the A-phase wires 52 and B-phase wires 53 of each busbar slot 50 are connected inside the busbar slot connector 100 through the first conductor 13, the conductive element 12, and the second conductor 14. That is, the A-phase wires 52 and B-phase wires 53 are connected in parallel to form a single phase wire, which serves as, for example, the positive phase wire. Similarly, the C-phase wires 54 and N-phase wires 55 of each busbar slot 50 can also be connected through a spacer 10 with a conductive element 12 located between them, thus connecting the C-phase wires and N-phase wires in parallel to form another phase wire, which serves as, for example, the negative phase wire.

[0042] Furthermore, when the busbar connector 100, which has a spacer 10 according to an embodiment of this disclosure, is connected to the busbar 50 in a DC application, the A-phase line 52 and B-phase line 53 of each busbar 50 are connected at the busbar connector 100, and the C-phase line 53 and N-phase line 54 are also connected at the busbar connector 100. This helps to equalize the temperature rise between the A-phase line 52 and B-phase line 53, and between the C-phase line 54 and N-phase line 55 within the DC circuit, thereby reducing the temperature rise difference between different phase lines within the circuit and improving the performance of the busbar. In addition, by connecting the four phase lines of the busbar 50 in parallel pairwise through the busbar connector 100 itself, no additional components are needed to achieve the parallel connection of the phase lines, which helps to reduce the cost of the circuit.

[0043] It should be noted that although the busbar connector 100 in the above embodiments is described using the connection with a busbar 50 having four phase wires as an example, this disclosure is not limited thereto. For example, when a busbar 50 with more than four phase wires needs to be used in a DC application, the multiple spacers within the busbar connector 100 can be selectively configured as spacers 10 in the embodiments of this disclosure, thereby dividing the multiple phase wires of the busbar 50 into two groups of phase wires that are insulated from each other. Each group of phase wires of the busbar 50 can be connected through the first conductor 13, the conductive element 12, and the second conductor 14 of the spacer 10 to form a positive phase wire or a negative phase wire.

[0044] The spacer 10 of the present disclosure is particularly suitable for bus connectors 100 of dense DC bus lines.

[0045] See Figure 2 and Figure 3 An exemplary structure of the spacer 10 is shown. The spacer body 11 has through holes 113 corresponding to each conductive element 12, and the through holes 113 penetrate the first surface 111 and the second surface 112 of the spacer body 11. Each conductive element 12 is fitted into its corresponding through hole 113. When the first conductor 13 and the second conductor 14 are attached to the spacer body 11, each conductive element 12 is sandwiched between the first conductor 13 and the second conductor 14. The first conductor 13 and the second conductor 14 respectively contact different surfaces of each conductive element 12, thus achieving conductivity between the first conductor 13 and the second conductor 14.

[0046] Of course, the conductive element 12 can also be installed in the partition body 11 in other ways. For example, in some embodiments not shown, each conductive element 12 can be integrally formed with the first conductor 13 and fitted into the corresponding conductive hole 113. Alternatively, each conductive element 12 can be integrally formed with the second conductor 14 and fitted into the corresponding conductive hole 113. Alternatively, a portion of each conductive element 12 can be integrally formed with the first conductor 13, and another portion can be integrally formed with the second conductor 14, with each conductive element 12 fitted into the corresponding conductive hole 113.

[0047] In some embodiments not shown, the partition body 11 can be integrally formed with each conductor 12 by injection molding.

[0048] See also Figure 2 and Figure 3 In some embodiments, the partition body 11 has a mounting hole 110, a first sleeve portion 114, and a second sleeve portion 115 in the middle. The mounting hole 110 provides fasteners 31 (see [reference]) for the fastener assembly 30. Figure 5 Specifically, a bolt passes through it. A first sleeve portion 114 extends outward from a first surface 111 and is arranged around a mounting hole 110. A second sleeve portion 115 extends outward from a second surface 112 and is arranged around a mounting hole 110. A first conductor 13 has a first connecting hole 130, which is fitted onto the first sleeve portion 114. A second conductor 14 has a second connecting hole 140, which is fitted onto the second sleeve portion 115.

[0049] Reference Figure 2 and Figure 8 The two ends of the busbar connector 100 along its length L are connected to multiple phase lines of the two busbar trunking 50 via plug-in connections. The length L of the busbar connector 100 is consistent with the length L of the partition plate 10. Two conductive elements 12 are arranged at intervals along the length L of the partition plate body 11, and the two conductive elements 12 are located on opposite sides of the mounting holes 110. In this way, the two parallel phase lines of each busbar trunking 50 can be directly connected in parallel through the corresponding conductive elements 12.

[0050] It should be noted that although the above embodiments of this disclosure use two conductive elements 12 as an example, it is understood that this disclosure is not limited thereto. In some alternative embodiments, the number, structure, size, placement position of the conductive elements 12, and their installation relationship with the partition body 11 can be designed as needed. The conductive elements 12 only need to be able to conduct the first conductor 13 and the second conductor 14, thereby enabling the parallel connection of the phase lines of the two busbars connected to the busbar connector 100.

[0051] See Figure 3In some embodiments, both the first connecting hole 130 and the second connecting hole 140 are rectangular holes. Accordingly, the outer periphery of the first sleeve portion 114 matches the shape of the first connecting hole 130, and the outer periphery of the second sleeve portion 115 matches the shape of the second connecting hole 140. In this way, the first conductor 13, the partition body 11, and the second conductor 14 can be connected together without relative rotation.

[0052] In some embodiments, the first connecting hole 130 and the second connecting hole 140 are the same size. More specifically, the first conductor 13 and the second conductor 14 have the same structure. In this way, when the first conductor 13 and the second conductor 14 are connected to the partition body 11, there is no need to distinguish their respective matching with the first surface 111 or the second surface 112, but they can be arbitrarily installed on the first surface 111 or the second surface 112, thereby improving the installation versatility of the first conductor 13 and the second conductor 14.

[0053] See Figure 2 and Figure 6 In some embodiments, the inner diameter of the first sleeve portion 114 is larger than the size of the mounting hole 110, and the inner diameter of the second sleeve portion 115 is larger than the inner diameter of the first sleeve portion 115.

[0054] Figures 4 to 7 An exemplary structure of a busbar connector 100 is shown. The busbar connector 100 has a spacer 10 according to the above embodiments of the present disclosure.

[0055] Specifically, the busbar connector 100 includes: end caps 21 and 22 disposed opposite to each other, a plurality of spacers, and fastener assemblies 30. The plurality of spacers includes, for example, a plurality of spacers 10 and a plurality of spacers 40. The structure of spacer 10 can be referred to above, wherein the first conductor 13 and the second conductor 14 of its spacer body 11 are connected by a conductor 12. The structure of spacer 40 differs from that of spacer 10; the main difference is that each spacer 40 does not have a conductor.

[0056] Multiple spacers 10 and multiple spacers 40 are disposed between end caps 21 and 22, and fastener assembly 30 secures end caps 21, end caps 22, multiple spacers 10 and multiple spacers 40 together.

[0057] Figures 4 to 7The busbar connector 100 shown is specifically used to connect a busbar 50 having four phase wires. The plurality of spacers 40 specifically includes spacer 40A (also called the first spacer), spacer 40B (also called the third spacer), and spacer 40C (also called the fifth spacer). The plurality of spacers 10 specifically includes spacer 10A (also called the second spacer) and spacer 10B (also called the fourth spacer). Spacers 40A, 10B, 40C, and 10B are sequentially stacked between end caps 21 and 22 along the axial direction XX of the fastener 31. It should be noted that the application scope of the spacers 10 provided in this embodiment is not limited to the busbar connector 100 used to connect a busbar 50 having four phase wires.

[0058] See Figure 5 and Figure 10 A space 501 is formed between end cover 21 and spacer 40A, through which the cover plate 51 of busbar sluice 50 is inserted. A space 502 is formed between spacer 40A and spacer 10A, through which the A-phase wire 52 of busbar sluice 50 is inserted. A space 503 is formed between spacer 10A and spacer 40B, through which the B-phase wire 53 of busbar sluice 50 is inserted. A space 504 is formed between spacer 40B and spacer 10B, through which the C-phase wire 54 of busbar sluice 50 is inserted. A space 505 is formed between spacer 10B and spacer 40C, through which the N-phase wire 55 of busbar sluice 50 is inserted. A space 506 is formed between spacer 40C and end cover 22, through which the cover plate 56 of busbar sluice 50 is inserted.

[0059] See Figure 6 Each spacer 40 (spacers 40A, 40B, and 40C) includes a spacer body 41, a first conductor 43, and a second conductor 44. The spacer body 41 has a mounting hole 410 through which a fastener 31 passes. The first conductor 43 and the second conductor 44 are mounted on opposite first surfaces 411 and second surfaces 412 of the spacer body 41, and the first conductor 43 and the second conductor 44 are insulated from each other.

[0060] The partition body 41 may further include a first sleeve portion 414 and a second sleeve portion 415. The first sleeve portion 414 extends outward from a first surface 411 of the partition body 41 and is arranged around a mounting hole 410. The second sleeve portion 415 extends outward from a second surface 412 of the partition body 41 and is arranged around a mounting hole 410. The first conductor 43 has a first connecting hole 430, which is fitted onto the first sleeve portion 414. The second conductor 44 has a second connecting hole 440, which is fitted onto the second sleeve portion 415.

[0061] Where there is no conflict, the structure of the first sleeve portion 414 can refer to the structure of the first sleeve portion 114, and the structure of the second sleeve portion 415 can refer to the structure of the second sleeve portion 115.

[0062] See Figure 3 and Figure 6 In some embodiments, the end face 1141 of the first sleeve portion 114 of the spacer 10 is provided with an annular sleeve portion 116, which is used to insert into the sleeve portion of the spacer adjacent to the first surface 111. Taking spacer 10A as an example, the annular sleeve portion 116 is inserted into the second sleeve portion 415 of spacer 40A.

[0063] See Figure 6 and Figure 7 In some embodiments, the end face 4141 of the first sleeve portion 414 of the spacer 40 is provided with an annular sleeve portion 416, which is used to insert into the sleeve portion of the spacer adjacent to the first surface 411. Taking the spacer 40B as an example, the annular sleeve portion 416 is inserted into the second sleeve portion 115 of the spacer 10A.

[0064] Thus, multiple spacers are reliably stacked between end caps 21 and 22 via interlocking sleeve portions.

[0065] It should be noted that the structures of the various spacers 40 may not be exactly the same. For example, each spacer 40 may be selectively provided with an annular sleeve portion 416 as needed. For example, in Figure 6 In the example shown, the first sleeve portion 414 of the spacer 40A does not have a sleeve portion 416. Alternatively, a sleeve portion 417 may be provided inside the second sleeve portion 415 of the spacer 40A. The inner hole of the sleeve portion 417 engages with the fastener 31, and a groove for accommodating the annular sleeve portion 116 is formed between the sleeve portion 417 and the second sleeve portion 415.

[0066] See Figure 5 and Figure 7 The fastener assembly 30 includes a fastener 31, a nut 32, a washer 33, a washer 34, a sealing ring 35, and a sealing ring 36. End cap 21 has a mounting hole 210, and end cap 22 has a mounting hole 220. The fastener 31 passes sequentially through the washer 33, the sealing ring 35, the mounting hole 210 of end cap 21, the mounting holes (mounting holes 110 and 410) of each spacer, the mounting hole 220 of end cap 22, the sealing ring 36, and the washer 34 before connecting to the nut 32, thereby securing the various components of the busbar connector 100 together. Each sleeve portion of each spacer (e.g., the first sleeve portion and the second sleeve portion described above) defines the spaces 501 to 506 between end cap 21, the plurality of spacers, and end cap 22 by abutting against adjacent components.

[0067] In some embodiments, the fastener 31 has a rectangular segment, and the mounting holes 210, 410 and 110 of the multiple spacers, and 220 are all rectangular holes. The rectangular segment of the fastener 31 passes through these rectangular holes, which can prevent relative rotation between the end cap 21, the spacers, and the end cap 22.

[0068] See you again Figure 2 and Figure 3 In some embodiments, the first conductor 13 includes a first body portion 131 that adheres to the first surface 111 and a first annular support portion 132 that protrudes from the first body portion 131 in a direction away from the first surface 111, the first annular support portion 132 defining a first connection hole 130. The end face of the first annular support portion 132 is close to the end face 1141 of the first sleeve portion 114. The second conductor 14 includes a second body portion 141 that adheres to the second surface 112 and a second annular support portion 142 that protrudes from the second body portion 141 in a direction away from the second surface 112, the second annular support portion 142 defining a second connection hole 140. The end face of the second annular support portion 142 is close to the end face 1151 of the second sleeve portion 115.

[0069] See you again Figure 6 and Figure 7 In some embodiments, the first conductor 43 includes a first body portion 431 that conforms to the first surface 411 and a first annular support portion 432 that protrudes from the first body portion 431 in a direction away from the first surface 411, the first annular support portion 432 defining a first connection hole 430. The end face of the first annular support portion 432 is close to the end face 4141 of the first sleeve portion 414. The second conductor 44 includes a second body portion 441 that conforms to the second surface 412 and a second annular support portion 442 that protrudes from the second body portion 441 in a direction away from the second surface 412, the second annular support portion 442 defining a second connection hole 440. The end face of the second annular support portion 442 is close to the end face of the second sleeve portion 415.

[0070] When the fastener 31 is tightened, the annular support portion on each spacer plate (such as the first annular support portion and the second annular support portion mentioned above) abuts against the adjacent component. Combined with the abutment of each sleeve portion of each spacer plate against the adjacent component mentioned above, the space 501 to 506 mentioned above is reliably defined between the end cover 21, the plurality of spacers and the end cover 22.

[0071] Figures 8 to 10 A schematic diagram of a busbar assembly 1000 according to an embodiment of the present disclosure is shown, which has a busbar connector 100 according to an embodiment of the present disclosure. The busbar assembly 1000 includes two busbars 50 and a busbar connector 100 connecting the two busbars 50.

[0072] As described above, the busbar trunking assembly 1000 of this disclosure specifically uses a busbar trunking 50 with four phase lines as an example; however, this disclosure is not limited to this. In some alternative embodiments, the busbar trunking 50 may also have more phase lines.

[0073] See Figure 8 and Figure 9 The busbar trunking 50 housing includes two opposing side plates 57, and a cover plate 51 and a cover plate 56 connected between the two side plates 57. The cover plate 51 and cover plate 56 are oppositely disposed and, together with the two side plates 57, define a receiving cavity 58. Multiple phase wires of the busbar trunking 50 pass through the receiving cavity 58, specifically including phase A 52, phase B 53, phase C 54, and phase N 55. The ends of the cover plate 51, cover plate 56, and each phase wire are located outside the ends of the side plates 57.

[0074] Two busbar troughs 50 are located on either side of the busbar trough connector 100 along the length direction L. When each busbar trough 50 is connected to the busbar trough connector 100, the cover plate 51 is inserted into the space 501, the A-phase wire 52 is inserted into the space 502, the B-phase wire 53 is inserted into the space 503, the C-phase wire 54 is inserted into the space 504, the N-phase wire 55 is inserted into the space 505, and the cover plate 56 is inserted into the space 506.

[0075] Specifically, see Figure 10 Phase A conductor 52 and phase B conductor 53 are connected via the first conductor 13, the conductive element 12, and the second conductor 14 of the spacer 10A. That is, phase A and phase B conductors are connected in parallel through the spacer 10A, and can serve as positive phase conductors. Phase B conductor 53 and phase C conductor 54 of each busbar 50 are insulated from each other by the isolation provided by the spacer 40B. Phase C conductor 54 and phase N conductor 55 are connected via the first conductor 13, the conductive element 12, and the second conductor 14 of the spacer 10B. That is, phase C conductors and phase N conductors are connected in parallel through the spacer 10B, and can serve as negative phase conductors. Therefore, this busbar assembly 1000 can be directly applied to DC applications.

[0076] In embodiments according to this disclosure, by selectively configuring the spacer plate 10 of the busbar connector 100 to conduct the conductive elements 12 of the first conductor 13 and the second conductor 14, two adjacent phase lines of the busbar can be easily connected in parallel without the need for additional components. The temperature rise of the multiple phase lines connected in parallel through the busbar connector 100 is more uniform, which is beneficial to improving the performance of the busbar.

[0077] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A spacer plate (10) of a bus duct connector (100), characterized in that The spacer plate (10) comprises: a spacer plate body (11) comprising a first surface (111) and a second surface (112) facing away from each other; at least one through member (12) installed in the spacer plate body (11); a first conductor (13) fixed on the first surface (111); a second conductor (14) fixed on the second surface (112), and the second conductor (14) is in conduction with the first conductor (13) through the at least one through member (12).

2. The spacer plate (10) according to claim 1, characterized in that The spacer plate body (11) is provided with at least one through hole (113), and the at least one through member (12) is sleeved in the at least one through hole (113).

3. The spacer plate (10) according to claim 2, characterized in that The at least one through member (12) is integrally formed with the first conductor (13) or the second conductor (14).

4. The spacer plate (10) according to claim 1, characterized in that The spacer plate body (11) is integrally formed with the at least one through member (12) by injection molding.

5. The spacer plate (10) according to any one of claims 1 to 4, wherein: the spacer plate body (11) is provided with a mounting hole (110) through which a fastener (31) passes, the spacer plate body (11) is provided with two through members (12), and wherein the two through members (12) are arranged at intervals along the length direction (L) of the spacer plate body (11) and are located on opposite sides of the mounting hole (110).

6. The spacer plate (10) according to any one of claims 1 to 4, wherein: the spacer plate body (11) is provided with a mounting hole (110) through which a fastener (31) passes, and a first sleeve portion (114) and a second sleeve portion (115) arranged around the mounting hole (110), and wherein the first sleeve portion (114) extends outward from the first surface (111), and the second sleeve portion (115) extends outward from the second surface (112); and the first conductor (13) has a first connecting hole (130) sleeved on the first sleeve portion (114), and the second conductor (14) has a second connecting hole (140) sleeved on the second sleeve portion (115).

7. The spacer plate (10) according to claim 6, wherein: the first connecting hole (130) and the second connecting hole (140) are both rectangular holes and have the same size; and / or, an end surface (1141) of the first sleeve portion (114) is provided with an annular sleeve portion (116) for insertion into a sleeve portion of a spacer plate adjacent to the first surface (111), and the second sleeve portion (115) is for insertion of a sleeve portion of a spacer plate adjacent to the second surface (112).

8. A busway connector (100), characterized by, The spacer plate (10) comprises: two end covers (21, 22) arranged opposite to each other; a plurality of spacer plates (10, 40) arranged between the two end covers (21, 22), at least two of the plurality of spacer plates being the spacer plate (10) according to any one of claims 1 to 7; and a fastener assembly (30) for fixing the two end covers (21, 22) and the plurality of spacer plates (10, 40) together. ​ 9. The busway connector (100) of claim 8, wherein, The plurality of spacer plates (10, 40) includes a first spacer plate (40A), a second spacer plate (10A), a third spacer plate (40B), a fourth spacer plate (10B), and a fifth spacer plate (40C) arranged in sequence, wherein the second spacer plate (10A) and the fourth spacer plate (10B) are the spacer plate (10) according to any one of claims 1 to 7.

10. A busway assembly (1000) characterized by, Comprising: two bus ducts (50); and a bus duct connector (100) according to claim 8 or 9, the bus duct connector (100) being connected between the two bus ducts (50). ​

Images