busbar

Abstract

This application discloses a busbar, belonging to the field of busbar manufacturing technology. The busbar includes a first electrode plate, a second electrode plate, and a first insulating member. The first electrode plate and the second electrode plate are stacked, and the first electrode plate is provided with a first conductive post, and the second electrode plate is provided with a second conductive post. The first insulating member includes a first part and a second part connected together. The first part is located between the first electrode plate and the second electrode plate, and the second part is located between the first conductive post and the second conductive post. The first part has a clearance hole, and one of the first conductive post and the second conductive post passes through the clearance hole and is clearance-fitted with the clearance hole. By utilizing the first part of the first insulating member passing through one of the first conductive post and the second conductive post, and the first part being located between the first electrode plate and the second electrode plate, and the second part being located between the first conductive post and the second conductive post, the overall mechanical strength, creepage distance, and current carrying capacity of the busbar are effectively increased.

Description

Technical Field

[0001] This application belongs to the field of busbar manufacturing technology, and particularly relates to a busbar. Background Technology

[0002] Busbars are multi-layered composite conductive structures with advantages such as low impedance, low inductance, anti-interference, high reliability, and modular assembly. They are widely used in power switch systems, power generation systems, and power conversion modules of electric equipment. To meet the safety requirements for busbar use, the creepage distance between the busbar plates is currently increased by adding grooves. However, this method not only affects the overall mechanical strength of the busbar but also struggles to meet the ever-increasing current-carrying demands. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a busbar that effectively increases the overall mechanical strength, creepage distance, and current carrying capacity of the busbar.

[0004] Firstly, this application provides a motherboard, comprising:

[0005] A first electrode plate and a second electrode plate are stacked, wherein the first electrode plate is provided with a first conductive post and the second electrode plate is provided with a second conductive post;

[0006] The first insulating component includes a first part and a second part connected together. The first part is located between the first electrode plate and the second electrode plate, and the second part is located between the first conductive post and the second conductive post. The first part is provided with a clearance hole, and one of the first conductive post and the second conductive post passes through the clearance hole and is clearance-fitted with the clearance hole.

[0007] According to the busbar of this application, compared with the related technology that uses grooves to increase the creepage distance, on the one hand, the first part is located between the first and second electrode plates. The creepage distance between the first and second electrode plates is increased directly by utilizing the thickness of the first part itself. Simultaneously, the first part has a clearance hole that fits with one of the first and second conductive posts with a gap. This not only increases the positioning accuracy between the first and second electrode plates but also makes the busbar structure as compact as possible, while also providing electrical isolation between the first and second conductive posts. On the other hand, the second part is located between the first and second conductive posts, further isolating them, enhancing the insulation effect, and reducing the possibility of electrical interference between them. One of the first and second conductive posts passes through the clearance hole and fits with it with a gap. This effectively increases the overall mechanical strength, creepage distance, and current carrying capacity of the busbar.

[0008] According to one embodiment of this application, the first electrode plate has a first through hole, the second conductive post passes through the first through hole and is clearance-fitted with the first through hole, and the first through hole and the clearance hole are coaxially arranged.

[0009] According to one embodiment of this application, the inner diameters of the first through hole and the clearance hole are equal.

[0010] According to one embodiment of this application, the second electrode plate has a second through hole, the first conductive post passes through the second through hole and is clearance-fitted with the second through hole, and the second through hole and the clearance hole are coaxially arranged.

[0011] According to one embodiment of this application, the inner diameters of the second through hole and the clearance hole are equal.

[0012] According to one embodiment of this application, multiple copies of both the first and second conductive posts are provided, and each corresponds to one of them; multiple clearance holes are provided; wherein...

[0013] The first insulating element is provided in multiple forms; and / or

[0014] The first insulating member has at least two of the aforementioned clearance holes.

[0015] According to one embodiment of this application, along a second direction, the projections of the first portion and the second portion are set at right angles, and the second direction intersects the axis of the clearance hole.

[0016] According to one embodiment of this application, multiple first conductive posts and second conductive posts are provided, at least one first conductive post having both ends protruding from the end faces of the first electrode plate, and at least one second conductive post having both ends protruding from the end faces of the corresponding second electrode plate; the busbar further includes:

[0017] The second insulating element and the first insulating element are respectively located on both sides of the first electrode plate, and the second insulating element is located between the first conductive post and the second conductive post.

[0018] According to one embodiment of this application, the second insulating element includes:

[0019] The main body is connected to the first electrode plate;

[0020] Two extensions are connected to the main body, one of which is located between the main body and the first conductive post, and the other is located between the main body and the second conductive post.

[0021] According to one embodiment of this application, two second electrode plates are provided, with the two second electrode plates located on both sides of the first electrode plate, and multiple first insulating members are provided.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is one of the structural schematic diagrams of the busbar provided in the embodiments of this application;

[0025] Figure 2 This is one of the exploded views of the busbar provided in the embodiments of this application;

[0026] Figure 3 This is the second exploded view of the motherboard provided in the embodiments of this application;

[0027] Figure 4 This is the second schematic diagram of the busbar structure provided in the embodiments of this application;

[0028] Figure 5 This is a schematic diagram of the structure of the first type of first insulating member provided in the embodiments of this application;

[0029] Figure 6 This is a schematic diagram of the structure of the second type of first insulating element provided in the embodiments of this application;

[0030] Figure 7 This is a schematic diagram of the structure of the second insulating element provided in the embodiments of this application.

[0031] Figure label:

[0032] 100. First electrode plate; 101. First through hole; 110. First conductive post;

[0033] 200. Second electrode plate; 201. Second through hole; 210. Second conductive post;

[0034] 300, First insulating element; 310, First part; 311, Clearance hole; 320, Second part;

[0035] 400. Second insulating component; 410. Main body; 420. Extension. Detailed Implementation

[0036] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0037] The following is for reference. Figures 1-7 The busbar provided in the embodiments of this application is described. The busbar includes a first electrode plate 100, a second electrode plate 200, and a first insulating member 300.

[0038] The first electrode plate 100 and the second electrode plate 200 are stacked, and the first electrode plate 100 is provided with a first conductive post 110, and the second electrode plate 200 is provided with a second conductive post 210. The first conductive post 110 and the second conductive post 210 include, but are not limited to, copper posts. It should be noted that the shape and size of the first electrode plate 100 and the second electrode plate 200 can be designed according to actual needs, and this embodiment does not impose specific limitations on them.

[0039] It should be noted that the first electrode plate 100 and the second electrode plate 200 are stacked along the first direction to effectively utilize space and achieve multi-layer conductivity. The axial direction of the first conductive post 110 and the axial direction of the second conductive post 210 are parallel to the first direction to realize the conduction and distribution of current, while providing a structural basis for the connection and fixation of the busbar with other electronic devices.

[0040] The first insulating component 300 includes a first portion 310 and a second portion 320 connected together. The first portion 310 is located between the first electrode plate 100 and the second electrode plate 200, and the second portion 320 is located between the first conductive post 110 and the second conductive post 210. The first portion 310 has a clearance hole 311, and one of the first conductive post 110 and the second conductive post 210 passes through the clearance hole 311 and is clearance-fitted with it. The first insulating component 300 includes, but is not limited to, an epoxy board. The shape of the first portion 310 includes, but is not limited to, a rectangle, a circle, a semi-circle, or a semi-circular rectangle. The shape of the second portion 320 includes, but is not limited to, a rectangle or a trapezoid. It should be noted that the size and shape of the clearance hole 311 can be designed according to actual needs, and this embodiment does not impose specific limitations on this.

[0041] For example, the thickness (i.e. the length along the first direction) of the first portion 310 is 3 mm.

[0042] Understandably, compared to the method of increasing creepage distance by adding grooves in related technologies, on the one hand, the first part 310 is located between the first electrode plate 100 and the second electrode plate 200. By directly utilizing the thickness of the first part 310 itself, the creepage distance between the first electrode plate 100 and the second electrode plate 200 is increased. At the same time, the first part 310 has a clearance hole 311 that fits with a gap between the first conductive post 110 and the second conductive post 210. This not only increases the positioning accuracy between the first electrode plate 100 and the second electrode plate 200, but also makes the busbar structure as compact as possible. It also plays a role in electrical isolation between the first conductive post 110 and the second conductive post 210. On the other hand, the second part 320 is located between the first conductive post 110 and the second conductive post 210, further isolating the first conductive post 110 and the second conductive post 210, enhancing the insulation effect, and reducing the possibility of electrical interference between the first conductive post 110 and the second conductive post 210. One of the first conductive post 110 and the second conductive post 210 passes through the clearance hole 311 and is clearance-fitted with the clearance hole 311; thereby effectively increasing the overall mechanical strength, creepage distance and current carrying capacity of the busbar.

[0043] According to the busbar provided in the embodiments of this application, the first part 310 of the first insulating member 300 is inserted through one of the first conductive post 110 and the second conductive post 210. The first part 310 is located between the first electrode plate 100 and the second electrode plate 200, and the second part 320 is located between the first conductive post 110 and the second conductive post 210, thereby effectively increasing the overall mechanical strength, creepage distance and current carrying capacity of the busbar.

[0044] In some embodiments, such as Figure 5 and Figure 6 As shown, along the second direction, the projection of the second part 320 and the projection of the first part 310 are set at right angles, and the second direction intersects the axis of the clearance hole 311. Even though the projection of the first insulating member 300 along the second direction is L-shaped, the structure of the first insulating member 300 is more stable, and more space is provided for heat dissipation inside the busbar.

[0045] In some embodiments, combined with Figure 2 and Figure 3 As shown, the first electrode plate 100 has a first through hole 101, and the second conductive post 210 passes through the first through hole 101 and is clearance-fitted with the first through hole 101. The first through hole 101 and the clearance hole 311 are coaxially arranged. It should be noted that the shape and size of the first through hole 101 can be designed according to actual needs, and this embodiment does not impose specific limitations on it.

[0046] Understandably, the coaxial arrangement of the first through hole 101 and the clearance hole 311 allows one end of the second conductive post 210 to pass through the clearance hole 311 and the first through hole 101 sequentially and extend to the side of the first electrode plate 100 away from the second electrode plate 200 during the stacking process, thus improving assembly accuracy. Furthermore, the clearance fit between the second conductive post 210 and the first through hole 101 optimizes electrical clearance and creepage distance, improving the insulation performance of the busbar.

[0047] In some embodiments, combined with Figure 2 and Figure 3 As shown, the inner diameters of the first through hole 101 and the clearance hole 311 are equal. For example, the difference between the inner diameter of the first through hole 101 and the inner diameter of the clearance hole 311 and the outer diameter of the second conductive post 210 is 3 mm.

[0048] It is understandable that, since the inner diameters of the first through hole 101 and the clearance hole 311 are equal, after the first electrode plate 100 and the second electrode plate 200 are stacked, there is no step after the inner edge of the first through hole 101 and the inner edge of the clearance hole 311 are spliced ​​together. This ensures that the gap between the second conductive post 210 and the first through hole 101, as well as the gap between the second conductive post 210 and the clearance hole 311, are consistent. This not only improves the assembly accuracy and reliability, ensures the uniformity of the electrical clearance, and reduces the possibility of local electric field concentration, thereby reducing the risk of electrical breakdown, but also reduces the processing complexity.

[0049] In some embodiments, combined with Figure 2 and Figure 3 As shown, the first part 310 is mounted on the first electrode plate 100. The mounting methods between the first part 310 and the first electrode plate 100 include, but are not limited to, adhesive bonding.

[0050] It is understandable that, considering the second conductive post 210 passes through the first through hole 101, and the second portion 320 is located between the first conductive post 110 and the second conductive post 210 after stacking, the assembly steps can be simplified and the connection strength between the first portion 310 and the first electrode plate 100 can be improved by first installing the first portion 310 onto the first electrode plate 100 and abutting against the second electrode plate 100. Of course, in other embodiments, the first portion 310 can also be installed onto the second electrode plate 200 and abut against the first electrode plate 100; this embodiment does not impose specific limitations on this.

[0051] In some embodiments, combined with Figure 2 and Figure 3As shown, the second electrode plate 200 has a second through hole 201, and the first conductive post 110 passes through the second through hole 201 and is clearance-fitted with the second through hole 201. The second through hole 201 and the clearance hole 311 are coaxially arranged. It should be noted that the shape and size of the second through hole 201 can be designed according to actual needs, and this embodiment does not impose specific limitations on it.

[0052] Understandably, the coaxial arrangement of the second through hole 201 and the clearance hole 311 allows one end of the first conductive post 110 to pass sequentially through the clearance hole 311 and the second through hole 201 and extend to the side of the second electrode plate 200 away from the first electrode plate 100 during the stacking process, thus improving assembly accuracy. Furthermore, the clearance fit between the first conductive post 110 and the second through hole 201 optimizes electrical clearance and creepage distance, improving the insulation performance of the busbar.

[0053] In some embodiments, combined with Figure 2 and Figure 3 As shown, the inner diameters of the second through hole 201 and the clearance hole 311 are equal. For example, the difference between the inner diameter of the first through hole 101 and the inner diameter of the clearance hole 311 and the outer diameter of the first conductive post 110 is 3 mm.

[0054] Understandably, since the inner diameters of the second through hole 201 and the clearance hole 311 are equal, after the first electrode plate 100 and the second electrode plate 200 are stacked, there is no step after the inner edge of the second through hole 201 and the inner edge of the clearance hole 311 are spliced ​​together. This ensures that the gap between the first conductive post 110 and the first through hole 101, as well as the gap between the first conductive post 110 and the clearance hole 311, are consistent. This not only improves the assembly accuracy and reliability, ensures the uniformity of the electrical clearance, and reduces the possibility of local electric field concentration, thereby reducing the risk of electrical breakdown, but also reduces the processing complexity.

[0055] In some embodiments, combined with Figure 2 and Figure 3 As shown, the first part 310 is mounted on the second electrode plate 200. The mounting methods between the first part 310 and the second electrode plate 200 include, but are not limited to, adhesive bonding.

[0056] It is understandable that, considering the first conductive post 110 passes through the second through hole 201, and the second portion 320 is located between the first conductive post 110 and the second conductive post 210 after stacking, the assembly steps can be simplified and the connection strength between the first portion 310 and the second electrode plate 200 can be improved by first installing the first portion 310 onto the second electrode plate 200 and abutting against the first electrode plate 100. Of course, in other embodiments, the first portion 310 can also be installed onto the first electrode plate 100 and abut against the second electrode plate 200; this embodiment does not impose specific limitations on this.

[0057] In some embodiments, such as Figures 1 to 3 As shown, multiple first conductive posts 110 and multiple second conductive posts 210 are provided, and multiple clearance holes 311 are provided. It should be noted that the number and specific distribution of the first conductive posts 110, the second conductive posts 210 and the clearance holes 311 can be designed according to actual needs, and this embodiment does not impose specific limitations on this.

[0058] Understandably, providing multiple first conductive posts 110 and second conductive posts 210 increases the current-carrying capacity of the busbar. Simultaneously, each first conductive post 110 and its corresponding second conductive post 210 forms an independent electrical isolation unit through separate clearance holes 311, improving the insulation performance and reliability of the busbar. It should be noted that "multiple" includes two or more.

[0059] It should be noted that when multiple first conductive posts 110, multiple second conductive posts 210, and multiple clearance holes 311 are provided, the first conductive posts 110 and clearance holes 311 can correspond one-to-one, that is, all the first conductive posts 110 are inserted into the corresponding clearance holes 311; or the second conductive posts 210 and clearance holes 311 can correspond one-to-one, that is, all the second conductive posts 210 are inserted into the corresponding clearance holes 311; or a portion of the first conductive posts 110 and a portion of the clearance holes 311 can correspond one-to-one, and a portion of the second conductive posts 210 and another portion of the clearance holes 311 can correspond one-to-one, that is, a portion of the clearance holes 311 are fitted outside the corresponding first conductive posts 110, and another portion of the clearance holes 311 are fitted outside the corresponding second conductive posts 210. As long as the total number of clearance holes 311 and the total number of first conductive posts 110 and second conductive posts 210 are equal, this embodiment does not impose specific restrictions on this.

[0060] In some embodiments, such as Figures 1 to 3 As shown, a plurality of first conductive posts 110 are spaced apart on a first electrode plate 100 along a second direction, and a plurality of second conductive posts 210 are spaced apart on a second electrode plate 200 along a second direction, the second direction intersecting the first direction. For example, the second electrode plate 200 is provided with two second conductive posts 210.

[0061] In some embodiments, such as Figures 1 to 3 As shown, multiple first insulating elements 300 are provided to improve the creepage distance while minimizing manufacturing costs. It should be noted that the number and specific distribution of the first insulating elements 300 can be designed according to actual needs, and this embodiment does not impose specific limitations in this regard. For example, multiple first insulating elements 300 are spaced apart along the second direction.

[0062] It is understandable that by providing multiple first insulating elements 300, one of each first conductive post 110 and the corresponding second conductive post 210 is ensured to pass through a separate clearance hole 311.

[0063] In some embodiments, such as Figure 1 , Figure 3 and Figure 4 As shown, each second part 320 is flush with the side of the corresponding first part 310 that is away from it.

[0064] It is understandable that multiple first parts 310 are located on the same side of the first electrode plate 100, and the side of each second part 320 away from the first part 310 is flush, making the structure of the busbar more regular in space and enhancing the mechanical strength, reliability and stability of the busbar.

[0065] In some embodiments, such as Figure 6 As shown, the first insulating member 300 has at least two clearance holes 311, which increases the creepage distance while minimizing assembly steps. For example, the clearance holes 311 are spaced apart along the second direction.

[0066] It should be noted that when both the first conductive post 110 and the second conductive post 210 are provided in twos, in some embodiments, they can be combined. Figure 6 As shown, a first insulating member 300 is provided, and the first insulating member 300 has two clearance holes 311; in some embodiments, it can also be as follows: Figure 5 As shown, there are two first insulating members 300. Each of the two first insulating members 300 has only one clearance hole 311. That is, the two first conductive posts 110 are respectively inserted through the two clearance holes 311, or the two second conductive posts 210 are respectively inserted through the two clearance holes 311, or one of the first conductive posts 110 and a second conductive post 210 that does not correspond to the first conductive post 110 are respectively inserted through the two clearance holes 311. When there are three or more first conductive posts 110 and third conductive posts, only one first insulating member 300 can be provided, or multiple first insulating members 300 can be provided. The number of clearance holes 311 provided by each of the multiple first insulating members 300 can be the same or different. This embodiment does not impose specific restrictions on this.

[0067] In some embodiments, such as Figures 1 to 4 As shown, there are two second electrode plates 200, which are located on both sides of the first electrode plate 100, and multiple first insulating members 300 are provided.

[0068] It should be noted that when there is one second electrode plate 200, one of the first electrode plate 100 and the second electrode plate 200 is a positive electrode plate, and the other of the first electrode plate 100 and the second electrode plate 200 is a negative electrode plate, so that the busbar can be used in simple electrical systems; when there are two second electrode plates 200, the first electrode plate 100 is a neutral plate (also called the N electrode plate), and the two second electrode plates 200 are a positive electrode plate and a negative electrode plate, respectively, so that the busbar can be used in complex electrical systems and can better meet the needs of three-phase AC power or other complex circuits.

[0069] Understandably, one second electrode plate 200, one first electrode plate 100, and another second electrode plate 200 are stacked sequentially along a first direction. A portion 310 of the plurality of first insulating members 300 is located between one of the second electrode plates 200 and the first electrode plate 100, and another portion 310 of the plurality of first insulating members 300 is located between the other second electrode plate 200 and the first electrode plate 100. This enhances the electrical isolation performance of the busbar, reduces the risk of electrical short circuits, and allows the busbar to better balance mechanical stress, reducing mechanical stress concentration and improving the mechanical strength and overall stability of the busbar.

[0070] In some embodiments, such as Figure 2 As shown, the N-plate has a first through hole 101, and a second conductive post 210 disposed on the positive plate passes through the first through hole 101. The negative plate has a second through hole 201, and a portion of the first conductive post 110 disposed on the N-plate passes through the second through hole 201. Of course, in other embodiments, the N-plate may have a first through hole 101 and the positive plate may have a second through hole 201; or both the positive and negative plates may have second through holes 201; or the N-plate may have a first through hole 101. This embodiment does not impose specific limitations on this.

[0071] In some embodiments, such as Figures 1 to 3 As shown, both the positive and negative electrode plates are provided with multiple second conductive posts 210, and the N electrode plate is provided with multiple first conductive posts 110. The second conductive posts 210 on the positive electrode plate and the second conductive posts 210 on the negative electrode plate are staggered along a third direction, which intersects with the second direction and the first direction, respectively. That is, the multiple first conductive posts 110 and second conductive posts 210 form a 2×n rectangular array, where n is the number of first conductive posts 110. Of course, in other embodiments, the specific distribution of the first conductive posts 110 and second conductive posts 210 can also be designed according to the actual situation, and this embodiment does not impose specific limitations on this.

[0072] In some embodiments, such as Figure 1 , Figure 2 and Figure 4As shown, multiple first conductive posts 110 and second conductive posts 210 are provided. At least one first conductive post 110 has two ends protruding from the two end faces of the first electrode plate 100, and at least one second conductive post 210 has two ends protruding from the two end faces of the corresponding second electrode plate 200. The busbar also includes a second insulating member 400, which is located on both sides of the first electrode plate 100, and between the first conductive posts 110 and the second conductive posts 210. The second insulating member 400 includes, but is not limited to, an epoxy board. The connection method between the second insulating member 400 and the first electrode plate 100 includes, but is not limited to, bonding.

[0073] It should be noted that the first end of the first conductive post 110 protrudes from the first end face of the first electrode plate 100, the first end of the second conductive post 210 protrudes from the first end face of the second electrode plate 200 and extends beyond the first end face of the first electrode plate 100, and the second insulating member 400 is located between the first end of the first conductive post 110 and the first end of the second conductive post 210; the second end of the first conductive post 110 protrudes from the second end face of the first electrode plate 100, the second end of the second conductive post 210 protrudes from the second end face of the second electrode plate 200, and the first portion 310 of the first insulating member 300 is located between the second end of the first conductive post 110 and the second end of the second conductive post 210.

[0074] It is understandable that by placing a second insulating element 400 between the conductive posts that protrude from both ends of the corresponding electrode plates (including the first electrode plate 100 and the second electrode plate 200), the electrical isolation performance between the first conductive post 110 and the second conductive post 210 is further enhanced, and the risk of electrical short circuit is reduced.

[0075] For example, such as Figures 1 to 4 As shown, the two end faces of the second conductive post 210 disposed on the positive electrode plate protrude from the opposite end faces of the N electrode plate and the positive electrode plate, respectively. The first conductive post 110 protrudes from the two end faces of the N electrode plate, and the second insulating member 400 is located on the end face of the N electrode plate away from the positive electrode plate. Of course, in other embodiments, the first conductive post 110 may protrude from the two end faces of the N electrode plate, and the two end faces of the second conductive post 210 disposed on the positive and negative electrode plates may both protrude from the corresponding electrode plates; or the two end faces of the first conductive post 110 and the second conductive post 210 disposed on the positive and negative electrode plates may both protrude from the corresponding electrode plates. This embodiment does not impose specific limitations on this.

[0076] It should be noted that when both ends of the multiple first conductive posts 110 and multiple second conductive posts 210 protrude from the two ends of the corresponding electrode plates, either only one second insulating member 400 can be provided, or multiple second insulating members 400 can be provided so that at least one second insulating member 400 can simultaneously isolate multiple first conductive posts 110 and second conductive posts 210. This embodiment does not impose specific limitations on this.

[0077] In some embodiments, such as Figure 4 and Figure 7 As shown, the second insulating member 400 includes a main body 410 and two extensions 420. The main body 410 is connected to the first electrode plate 100; the extensions 420 are connected to the main body 410, one of which is located between the main body 410 and the first conductive post 110, and the other is located between the main body 410 and the second conductive post 210. The shapes of the main body 410 and the extensions 420 are, but are not limited to, rectangles.

[0078] It is understood that by having the two extensions 420 protrude from both sides of the main body 410 along the arrangement direction of the first conductive post 110 and the second conductive post 210, i.e., the shape of the second insulating member 400 includes, but is not limited to, a T-shape or a cross shape, the creepage distance between the first conductive post 110 and the second conductive post 210 is further increased, thereby enhancing the electrical isolation performance. Of course, in other embodiments, the shape of the second insulating member 400 may also be L-shaped, and this embodiment does not impose specific limitations on this.

[0079] In some embodiments, such as Figure 4 As shown, along the stacking direction of the first electrode plate 100 and the second electrode plate 200, the projection of the second insulating member 400 and the projection of the first insulating member 300 at least partially overlap, so that the first insulating member 300 and the second insulating member 400 cooperate with each other in the first direction, making the electrical isolation path between the conductive pillars longer, further enhancing the electrical isolation performance, and optimizing the overall structure of the busbar.

[0080] In some embodiments, such as Figures 1 to 4 As shown, both the first electrode plate 100 and the second electrode plate 200 include an electrode plate body and an insulating film located on both sides of the electrode plate body. The conductive post protrudes from the electrode plate body and extends outside the insulating film. The insulating film has through holes (including a first through hole 101 and a second through hole 201) to enhance the electrical isolation performance between the first electrode plate 100 and the second electrode plate 200.

[0081] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0082] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0083] The terms “installation,” “connection,” and “linkage” should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection via an intermediate medium; and they can refer to the internal connection between two components. The terms “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable deviation range, which is determined by a person skilled in the art taking into account the measurement under discussion and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism can be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity can also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where the acceptable deviation range for approximate equality can be, for example, a difference between two equal entities less than or equal to 5% of either one. For a person skilled in the art, the specific meaning of the above terms in this application can be understood on a case-by-case basis.

[0084] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0085] In the description of this application, "multiple" means two or more.

[0086] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0087] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0089] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A busbar, characterized in that, include: A first electrode plate and a second electrode plate are stacked, wherein the first electrode plate is provided with a first conductive post and the second electrode plate is provided with a second conductive post; The first insulating component includes a first part and a second part connected together. The first part is located between the first electrode plate and the second electrode plate, and the second part is located between the first conductive post and the second conductive post. The first part is provided with a clearance hole, and one of the first conductive post and the second conductive post passes through the clearance hole and is clearance-fitted with the clearance hole.

2. The busbar according to claim 1, characterized in that, The first electrode plate has a first through hole, and the second conductive post passes through the first through hole and is clearance-fitted with the first through hole. The first through hole and the clearance hole are coaxially arranged.

3. The busbar according to claim 2, characterized in that, The inner diameters of the first through hole and the clearance hole are equal.

4. The busbar according to claim 1, characterized in that, The second electrode plate has a second through hole, the first conductive post passes through the second through hole and is clearance-fitted with the second through hole, and the second through hole and the clearance hole are coaxially arranged.

5. The busbar according to claim 4, characterized in that, The inner diameters of the second through hole and the clearance hole are equal.

6. The busbar according to any one of claims 1 to 5, characterized in that, Multiple first conductive posts and multiple second conductive posts are provided, each corresponding to a specific one; multiple clearance holes are provided; wherein, The first insulating element is provided in multiple forms; and / or The first insulating member has at least two of the aforementioned clearance holes.

7. The busbar according to any one of claims 1 to 5, characterized in that, Along the second direction, the projections of the first part and the second part are set at right angles, and the second direction intersects the axis of the clearance hole.

8. The busbar according to any one of claims 1 to 5, characterized in that, Multiple first and second conductive posts are provided, with at least one first conductive post having both ends protruding from the end faces of the first electrode plate, and at least one second conductive post having both ends protruding from the end faces of the corresponding second electrode plate; the busbar further includes: The second insulating element and the first insulating element are respectively located on both sides of the first electrode plate, and the second insulating element is located between the first conductive post and the second conductive post.

9. The busbar according to claim 8, characterized in that, The second insulating element includes: The main body is connected to the first electrode plate; Two extensions are connected to the main body, one of which is located between the main body and the first conductive post, and the other is located between the main body and the second conductive post.

10. The busbar according to any one of claims 1 to 5, characterized in that, There are two second electrode plates, which are located on both sides of the first electrode plate, and there are multiple first insulating components.

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