Busbars and electrical equipment

Abstract

The application discloses a busbar and electrical equipment, and belongs to the technical field of electricity. The busbar comprises a busbar body, the busbar body is provided with a first surface and a second surface in opposite arrangement, and a processing surface adjacent to the first surface and the second surface; an insulating piece, the insulating piece is provided with a first insulating surface and a second insulating surface in opposite arrangement, and a connecting surface and a matching surface in opposite arrangement, the connecting surface is connected with the processing surface, the first insulating surface is oriented to the same side as the first surface, and the second insulating surface is oriented to the same side as the second surface; and an insulating film, the insulating film wraps the busbar body and the insulating piece, and is at least attached to the first surface, the first insulating surface, the matching surface, the second surface and the second insulating surface. According to the busbar provided in the application, the insulating piece is connected on the processing surface of the busbar body, and the busbar body and the insulating piece are wrapped by the insulating film, so that the insulating film is not in contact with sharp processing marks, thereby reducing the risk of breakage of the insulating film and improving the insulation performance of the busbar.

Description

Technical Field

[0001] This application belongs to the field of electrical technology, and in particular relates to a busbar and electrical equipment. Background Technology

[0002] In electrical equipment, busbars serve the function of collecting and distributing electrical energy. Busbars typically have an insulating film on their body for insulation protection. However, burrs are easily generated during the manufacturing process of the busbar, and these burrs can easily puncture the insulating film. Furthermore, when the busbar body is thick, the extension length required for the insulating film to cover the corners of the busbar body can easily exceed the material's inherent elongation limit, leading to insulation film cracking. Once the insulating film is damaged, it directly weakens the insulation performance of the busbar, potentially causing safety hazards such as short circuits or leakage, and affecting the operational reliability and service life of the electrical equipment. To alleviate the problem of insulating film cracking, related technologies often employ the method of increasing the number of insulating film layers. However, this not only increases manufacturing costs but also leads to a decrease in the partial discharge throughput of the busbar. 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 and electrical equipment that can reduce the risk of insulation film rupture and improve the insulation performance, withstand voltage reliability, and service life of the busbar.

[0004] In a first aspect, this application provides a busbar, comprising: The busbar body has a first surface and a second surface disposed opposite to each other, and a machined surface adjacent to the first surface and the second surface; An insulating component having a first insulating surface and a second insulating surface disposed opposite to each other, as well as a connecting surface and a mating surface disposed opposite to each other, the connecting surface being connected to the machined surface, the first insulating surface and the first surface facing the same side, and the second insulating surface and the second surface facing the same side; An insulating film that wraps around the busbar body and the insulating component, and is in contact with at least the first surface, the first insulating surface, the mating surface, the second surface, and the second insulating surface.

[0005] According to the busbar provided in the embodiments of this application, by connecting insulating components to the machined surface of the busbar body and wrapping the busbar body and insulating components with an insulating film, the insulating film is prevented from directly contacting the burrs or tool marks on the machined surface, thereby reducing local stress concentration of the insulating film, reducing the risk of insulating film rupture, increasing the partial discharge pass rate, improving the insulation performance, withstand voltage reliability, economy and service life of the busbar, and enhancing the safety and stability of electrical equipment.

[0006] According to one embodiment of this application, the connecting surface and the processed surface are connected by adhesive.

[0007] According to one embodiment of this application, the processing surface and the connecting surface are provided with positioning structures that mutually position and cooperate with each other.

[0008] According to one embodiment of this application, the positioning structure includes a first meshing surface disposed on the machining surface and a second meshing surface disposed on the connecting surface, wherein the first meshing surface meshes with the second meshing surface and extends along a first direction. According to one embodiment of this application, the busbar body has a bending region, the area opposite the connecting surface to the bending region does not have a second meshing surface, and the bending region does not have a first meshing surface.

[0009] According to one embodiment of this application, both the first insulating surface and the mating surface, and the second insulating surface and the mating surface, have arc-shaped guide surfaces.

[0010] According to one embodiment of this application, the first insulating surface is flush with the first surface, and the second insulating surface is flush with the second surface.

[0011] According to one embodiment of this application, the insulating element is made of an elastic material.

[0012] According to one embodiment of this application, the insulating film is respectively attached to the side where the first surface is located and the side where the second surface is located, and the insulating films on both sides are heat-pressed together at the corresponding positions of the mating surfaces.

[0013] Secondly, this application provides an electrical device, comprising: Multiple electrical components; The busbar as described above is used to connect the electrical components.

[0014] According to the electrical equipment provided in the embodiments of this application, by using the above-mentioned busbar, the insulating film does not directly contact the burrs or tool marks on the processing surface, thereby reducing the local stress concentration of the insulating film, reducing the risk of insulating film rupture, increasing the partial discharge pass rate, improving the insulation performance, withstand voltage reliability, economy and service life of the busbar, and enhancing the safety and stability of the electrical equipment.

[0015] 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

[0016] 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: Figure 1 This is one of the structural schematic diagrams of the busbar provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the busbar body and insulation components provided in the embodiments of this application; Figure 3 This is the second schematic diagram of the busbar structure provided in the embodiments of this application.

[0017] Figure label: Busbar body 110, first surface 111, second surface 112, machined surface 113, bending area 115, straight area 116, first meshing surface 117; Insulating component 120, first insulating surface 121, second insulating surface 122, connecting surface 123, mating surface 124, arc-shaped guide surface 125, area 127 opposite to the bending area, area 128 opposite to the straight area, second meshing surface 129; Insulating film 130. Detailed Implementation

[0018] 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.

[0019] The following is for reference. Figures 1-3 This application describes electrical equipment and busbars according to embodiments thereof.

[0020] Electrical equipment refers to devices, machines, or systems that use electrical energy to operate.

[0021] Electrical equipment can be energy storage boxes, inverters, distribution cabinets, or motor controllers, etc.

[0022] Electrical equipment includes multiple electrical components and busbars.

[0023] Electrical components refer to independent units or parts within electrical equipment that perform specific electrical functions.

[0024] Electrical components can be capacitors, insulated gate bipolar transistors (IGBTs), or integrated circuits, etc.

[0025] A busbar is an electrical connection assembly that is insulated and assembled for installation and use.

[0026] Busbars are used to connect electrical components. That is, within electrical equipment, busbars provide a common path for power distribution and connection for various electrical components.

[0027] This application also provides a busbar.

[0028] like Figure 1 and Figure 3 As shown, the busbar includes a busbar body 110, an insulating component 120, and an insulating film 130.

[0029] The busbar body 110 is the core conductive part of the busbar, with low resistance and high current carrying capacity, and is relatively dangerous when exposed.

[0030] The busbar body 110 can be made of a highly conductive metal, such as copper, aluminum, or copper-aluminum composite materials.

[0031] like Figure 1 As shown, the busbar body 110 has a first surface 111, a second surface 112 and a machined surface 113.

[0032] The first surface 111 can be a large plane on the busbar body 110.

[0033] The second surface 112 can be a large plane on the busbar body 110.

[0034] like Figure 1 As shown, the first surface 111 and the second surface 112 are arranged opposite to each other.

[0035] That is, the first surface 111 and the second surface 112 are two large, opposite planes on the busbar body 110, and the first surface 111 and the second surface 112 can carry a large current density.

[0036] The machined surface 113 is the side surface of the busbar body 110, which is formed by mechanical processing processes such as laser cutting, shearing or milling. The machined surface 113 may have processing marks, such as burrs or tool marks.

[0037] like Figure 1 As shown, the machined surface 113 is adjacent to the first surface 111 and the second surface 112.

[0038] That is, the machined surface 113 is adjacent to the first surface 111, and the machined surface 113 is adjacent to the second surface 112.

[0039] Insulator 120 is a component made of insulating material.

[0040] like Figure 1 As shown, the insulating component 120 has a first insulating surface 121, a second insulating surface 122, a connecting surface 123, and a mating surface 124.

[0041] like Figure 1 As shown, the first insulating surface 121 and the second insulating surface 122 are arranged opposite to each other.

[0042] like Figure 1 As shown, the connecting surface 123 and the mating surface 124 are arranged opposite to each other.

[0043] like Figure 1 As shown, the connecting surface 123 is connected to the machining surface 113.

[0044] That is, the insulating component 120 is connected to the machined surface 113 of the busbar body 110 through the connecting surface 123. In this way, the connecting surface 123 of the insulating component 120 can cover the machining marks, such as burrs or tool marks, on the machined surface 113 of the busbar body 110.

[0045] like Figure 1 As shown, the first insulating surface 121 and the first surface 111 face the same side, and the second insulating surface 122 and the second surface 112 face the same side.

[0046] That is, the first insulating surface 121 of the insulating component 120 and the first surface 111 of the busbar body 110 are aligned, and the second insulating surface 122 of the insulating component 120 and the second surface 112 of the busbar body 110 are aligned.

[0047] The insulating film 130 is a thin layer made of insulating material. The insulating film 130 can be made of insulating materials such as polyimide, polyester, corona-resistant polytetrafluoroethylene, or composite materials.

[0048] like Figure 1 As shown, the insulating film 130 wraps the busbar body 110 and the insulating component 120, and is in contact with at least the first surface 111, the first insulating surface 121, the mating surface 124, the second surface 112 and the second insulating surface 122.

[0049] That is, the insulating film 130 is wrapped around the bus body 110 with the assembled insulating component 120, and can make close contact with the first surface 111, the first insulating surface 121, the mating surface 124, the second surface 112 and the second insulating surface 122, and there are no large bubbles or gaps on these surfaces.

[0050] The insulating film 130 reduces the risk of short circuits by covering the busbar body 110 and reducing accidental contact between the busbar body 110 and external conductors. In addition, the insulating film 130 can also have the properties of high temperature resistance, flame retardancy and corrosion resistance.

[0051] The connecting surface 123 of the insulating component 120 is fixedly connected to the machined surface 113 of the busbar body 110, which enables physical isolation between the insulating film 130 and the machined surface 113. This design eliminates the need for the insulating film 130 to be directly attached to the machined surface 113 of the busbar body 110, thereby reducing contact between the insulating film 130 and sharp machining marks such as burrs or knife marks on the machined surface 113; at the same time, the sharp edges formed at the connection points between the machined surface 113 and the first surface 111, and between the machined surface 113 and the second surface 112, can also avoid contact with the insulating film 130.

[0052] The assembly process of the busbar in this embodiment is as follows: the connecting surface 123 of the insulating component 120 is connected to the processing surface 113 of the busbar body 110, and the first insulating surface 121 of the insulating component 120 and the first surface 111 of the busbar body 110 face the same side, and the second insulating surface 122 and the second surface 112 face the same side; then the insulating film 130 is used to wrap the busbar body 110 and the insulating component 120 as a whole, so that the insulating film 130 is tightly attached to the first surface 111, the first insulating surface 121, the mating surface 124, the second insulating surface 122 and the second surface 112, and finally the seam of the insulating film 130 is sealed to form a continuous and complete insulating protective layer.

[0053] According to the busbar provided in the embodiments of this application, by connecting the insulating element 120 on the machined surface 113 of the busbar body 110 and wrapping the busbar body 110 and the insulating element 120 with the insulating film 130, the insulating film 130 is not in direct contact with the burrs or tool marks on the machined surface 113, thereby reducing the local stress concentration of the insulating film 130, reducing the risk of the insulating film 130 breaking, increasing the partial discharge pass rate, improving the insulation performance, withstand voltage reliability, economy and service life of the busbar, and enhancing the safety and stability of electrical equipment.

[0054] Correspondingly, the electrical equipment provided according to the embodiments of this application, by adopting the above-mentioned busbar, prevents the insulation film 130 from directly contacting the burrs or tool marks on the processed surface 113, thereby reducing the local stress concentration of the insulation film 130, reducing the risk of the insulation film 130 breaking, increasing the partial discharge pass rate, improving the insulation performance, withstand voltage reliability, economy and service life of the busbar, and enhancing the safety and stability of the electrical equipment.

[0055] In some embodiments, the connecting surface 123 and the processing surface 113 are connected by adhesive.

[0056] An adhesive backing can be applied to the connecting surface 123 of the insulating component 120. This adhesive backing can be protected by release paper. Before pasting, the release paper can be removed, and then the connecting surface 123 of the insulating component 120 can be aligned with the processing surface 113 and pressed to complete the bonding.

[0057] The adhesive bonding method used to connect the connection surface 123 and the machined surface 113 is simple in process and easy to operate, eliminating the need for metal fasteners such as bolts or nuts, thus reducing the overall weight of the busbar and saving installation space. Simultaneously, the adhesive material can form a relatively uniform stress distribution layer on the connection surface 123, reducing the likelihood of cracking or deformation of the insulation component 120 due to uneven stress. Furthermore, the adhesive material can be a good insulating material, adding an insulating barrier between the insulation component 120 and the busbar body 110, further improving the insulation performance and reliability of the busbar.

[0058] Of course, the connecting surface 123 and the machined surface 113 can also be connected by a snap-fit. A hook can be designed on the connecting surface 123, and a corresponding groove can be machined on the machined surface 113 to achieve mechanical interlocking by pressing.

[0059] The connecting surface 123 and the machined surface 113 can also be ultrasonically welded. High-frequency vibration waves can be used to cause the molecules of the connecting surface 123 and the machined surface 113 to move violently and generate heat through friction, and then fuse and solidify instantly under pressure to achieve the connection.

[0060] In some embodiments, such as Figure 2 As shown, the machining surface 113 and the connecting surface 123 are provided with positioning structures that are mutually positioned and engaged.

[0061] This allows for quick and precise alignment of the insulation component 120 with the busbar body 110, effectively reducing misalignment or displacement during assembly, improving installation efficiency, reducing adjustment time, and enhancing the overall stability of the connection between the machined surface 113 and the connecting surface 123. The positioning structure provides initial mechanical fixation before the adhesive material cures, preventing component slippage and promoting uniform bonding. Furthermore, the combined effect of mechanical interlocking and adhesive bonding enhances the shear resistance, vibration resistance, and creep resistance of the adhesive joint between the machined surface 113 and the connecting surface 123, maintaining connection reliability even during long-term operation or harsh environments, ultimately extending the service life of the busbar.

[0062] In some embodiments, such as Figure 2 As shown, the positioning structure includes a first meshing surface 117 on the machining surface 113 and a second meshing surface 129 on the connecting surface 123. The first meshing surface 117 meshes with the second meshing surface 129 and extends along the first direction X.

[0063] Specifically, a first engagement surface 117 extending along the first direction X can be provided on the machined surface 113 of the busbar body 110, and a second engagement surface 129 extending along the first direction X can be provided on the connecting surface 123 of the insulating member 120. The first engagement surface 117 and the second engagement surface 129 engage with each other. For example, the first engagement surface 117 and the second engagement surface 129 can be mutually meshing sawtooth structures, or the first engagement surface 117 and the second engagement surface 129 can be mutually meshing groove and protrusion structures.

[0064] During assembly, simply align the second engagement surface 129 of the insulating component 120 with the first engagement surface 117 of the busbar body 110, and then slide or press along the first direction X to engage. The first engagement surface 117 and the second engagement surface 129 have a self-guiding function, and even if there is a slight deviation, the position can be automatically corrected during the pressing process, which has good fault tolerance.

[0065] The first meshing surface 117 and the second meshing surface 129 can provide clear guidance and accurate mechanical positioning for the installation of the insulating component 120, enabling the insulating component 120 to be quickly and accurately aligned with the busbar body 110, effectively reducing lateral offset or torsion during the assembly process of the insulating component 120.

[0066] The first engagement surface 117 and the second engagement surface 129 extend along the first direction X. This means that the first engagement surface 117 and the second engagement surface 129 can provide a more continuous and uniform constraint force on their contact surface. Compared with the discrete positioning function of pins or positioning posts, the first engagement surface 117 and the second engagement surface 129 can effectively reduce the offset or torsion of the insulating component 120 perpendicular to the first direction X along its entire length, and improve the parallelism between the insulating component 120 and the busbar.

[0067] The first meshing surface 117 meshes with the second meshing surface 129, and with the synergistic effect of the adhesive material, it can improve the shear resistance at the connection between the machined surface 113 and the connecting surface 123, effectively reduce the shear stress caused by vibration or thermal expansion and contraction, reduce the loosening or slippage of the insulating component 120, and improve the long-term mechanical stability and insulation durability of the busbar.

[0068] In some embodiments, such as Figure 2 As shown, the busbar body 110 has a bending region 115 and a straight region 116.

[0069] The bending area 115 is the part of the busbar body 110 that has been processed and bent. The stress is relatively concentrated and the deformation is relatively large in this area.

[0070] The straight region 116 refers to the part of the busbar body 110 that has not been bent and has maintained its original straight state. The stress in this region is relatively uniform and the deformation is small.

[0071] The insulating member 120 has a region 127 opposite to the bent region and a region 128 opposite to the straight region.

[0072] like Figure 2 As shown, the area opposite the connecting surface 123 and the bending area 115 does not have a second meshing surface 129, and the bending area 115 does not have a first meshing surface 117.

[0073] That is, the machining surface 113 in the bending region 115 may not have a first meshing surface 117, and the machining surface 113 in this region can be entirely planar. Similarly, the connecting surface 123 in the region 127 opposite to the bending region may not have a second meshing surface 129, and the connecting surface 123 in this region can be entirely planar. In other words, in the bending region 115, the fit between the machining surface 113 and the connecting surface 123 can be a planar fit. In the straight region 116, the fit between the machining surface 113 and the connecting surface 123 can be the meshing of the first meshing surface 117 and the second meshing surface 129.

[0074] If a second meshing surface 129 is provided in the area opposite the connecting surface 123 and the bending area 115, and a first meshing surface 117 is provided in the bending area 115, the mechanical locking effect of the meshing may form a rigid constraint point in this local area, and large local shear stress and peeling stress may be generated at the meshing point. This stress concentration may lead to material fatigue, microcrack initiation, or adhesive interface failure of the insulating component 120 or the busbar body 110. However, by using a mating between planes, the insulating component 120 can absorb and adapt to stress through its own elastic deformation and micro-slippage with the surface of the busbar body 110, thereby reducing stress concentration. This macroscopically maintains a high connection stability and positional consistency between the insulating component 120 and the busbar in the remaining meshing areas, reduces the risk of shearing or grinding at the meshing point, reduces loosening and misalignment caused by shear force damage to the adhesive layer, and protects the structural integrity of the busbar body 110, the insulating component 120, and the adhesive layer.

[0075] In some embodiments, such as Figure 1 As shown, there is an arc-shaped guide surface 125 between the first insulating surface 121 and the mating surface 124, and there is an arc-shaped guide surface 125 between the second insulating surface 122 and the mating surface 124.

[0076] That is, the insulating component 120 may have two arc-shaped guide surfaces 125, one of which may be connected between the mating surface 124 and the first insulating surface 121, and the other may be connected between the mating surface 124 and the second insulating surface 122.

[0077] Thus, the mating surface 124 and the first insulating surface 121 form an arc-shaped guide surface 125 instead of sharp edges; the mating surface 124 and the second insulating surface 122 form an arc-shaped guide surface 125 instead of sharp edges.

[0078] When the insulating film 130 is applied to the first insulating surface 121 and the mating surface 124, or the second insulating surface 122 and the mating surface 124, it will not adhere to sharp edges or be severely bent. The arc-shaped guide surface 125 can transform sharp, high-stress geometric abrupt points into smooth, low-stress gradual transition areas. The insulating film 130 can smoothly wrap around the arc-shaped guide surface 125, and the internal stress of the insulating film 130 can be evenly distributed, thereby reducing stress concentration. At the same time, it reduces the occurrence of wrinkles, gaps, uneven stretching, or cracks in the insulating film 130, improving the flatness, airtightness, durability, and reliability of the insulating film 130, and reducing the risk of leakage.

[0079] In some embodiments, such as Figure 1 As shown, the first insulating surface 121 is flush with the first surface 111, and the second insulating surface 122 is flush with the second surface 112.

[0080] That is, the plane containing the first insulating surface 121 and the plane that is flush with the first surface 111 are the same plane, and the plane containing the second insulating surface 122 and the plane containing the second surface 112 are the same plane.

[0081] This design provides a flat and continuous surface base for wrapping the insulating film 130, reducing steps or gaps caused by height differences. It allows the insulating film 130 to fit tightly and reduces gaps, making the tensile stress of the insulating film 130 more even. This reduces the risk of film wear or cracking caused by local stress concentration, thereby improving the overall insulation reliability and long-term durability of the insulating film 130, and enhancing the insulation strength and withstand voltage stability of electrical equipment.

[0082] In some embodiments, the insulating element 120 is made of an elastic material.

[0083] The elastic material can be thermoplastic elastomer, silicone rubber, or EPDM rubber, etc.

[0084] The insulating component 120, made of elastic material, can effectively absorb and buffer the micro-deformation and mechanical impact caused by thermal expansion and contraction, electromagnetic vibration, or installation stress during the operation of the busbar through the flexibility of the material itself. This characteristic allows the insulating component 120 to fit tightly against the surface of the busbar body 110, especially the bending area 115, reducing the risk of cracking or detachment from the busbar body 110 due to stress concentration, thereby significantly improving the reliability and long-term stability of the connection. At the same time, the adaptive deformation of the elastic material ensures that the insulating film 130 is always in a uniformly stressed state, reducing the risk of damage to the insulating film 130 due to underlying hard undulations or relative displacement, thus enhancing the overall mechanical protection and insulation integrity of the busbar.

[0085] Of course, the insulating component 120 can also be made of rigid materials, such as epoxy resin, polybutylene terephthalate, or polyphenylene sulfide.

[0086] In some embodiments, insulating films 130 are respectively attached to the side where the first surface 111 is located and the side where the second surface 112 is located, and the insulating films 130 on both sides are heat-pressed together at the positions corresponding to the mating surfaces 124.

[0087] One side of the insulating film 130 is attached to the first surface 111 and the first insulating surface 121, and after a smooth transition through the arc-shaped guide surface 125, it covers the mating surface 124; the other side of the insulating film 130 is attached to the second surface 112 and the second insulating surface 122, and after a smooth transition through the arc-shaped guide surface 125, it covers the mating surface 124. The two insulating films 130 converge at the mating surface 124, and the remaining parts of the insulating film 130 that are not attached to the busbar body 110 or the insulating component 120 are fused together by a hot pressing process.

[0088] The aforementioned hot-pressing connection method creates a continuous, uniform, and high-strength sealed joint between the two insulating films 130, reducing potential gaps or weak points between the insulating films 130. This effectively reduces moisture or contaminant intrusion and partial discharge, enhancing the busbar's tolerance to harsh environments. Simultaneously, the hot-pressing connection method prevents the insulating film 130 from delaminating or cracking under complex operating conditions, maintaining more durable insulation protection. Furthermore, the hot-pressing connection method enables automated and integrated wrapping of the insulating film 130, reducing manual operation and improving the long-term durability and safety of the busbar.

[0089] Of course, the connection of the insulating films 130 on both sides can also be achieved by adhesive bonding, mechanical fastening or sewing.

[0090] The following is combined with Figures 1-3 The busbars of embodiments of this application are described.

[0091] The busbar includes a busbar body 110, an insulating component 120, and an insulating film 130.

[0092] The busbar body 110 has a first surface 111 and a second surface 112 disposed opposite to each other, and a machined surface 113 adjacent to the first surface 111 and the second surface 112. The machined surface 113 is provided with a first engagement surface 117 that mates with the connection surface 123 of the insulating member 120, while the machined surface 113 of the bending region 115 is not provided with a first engagement surface 117.

[0093] The insulating component 120 is made of an elastic material and has a first insulating surface 121 and a second insulating surface 122, a connecting surface 123 and a mating surface 124, and an arc-shaped guide surface 125, all disposed opposite to each other. The first insulating surface 121 is flush with the first surface 111, and the second insulating surface 122 is flush with the second surface 112. The connecting surface 123 has a second engaging surface 129 that mates with the machined surface 113. The region 127 of the connecting surface 123 opposite to the bending region does not have a second engaging surface 129. Arc-shaped guide surfaces 125 are present between the first insulating surface 121 and the mating surface 124, and between the second insulating surface 122 and the mating surface 124.

[0094] The insulating film 130 is attached to the first surface 111 and the first insulating surface 121 on one side, and after a smooth transition through the arc-shaped guide surface 125, it covers the mating surface 124; the insulating film 130 is attached to the second surface 112 and the second insulating surface 122 on the other side, and after a smooth transition through the arc-shaped guide surface 125, it covers the mating surface 124. The insulating films 130 on both sides meet at the mating surface 124.

[0095] The assembly process of the busbar in this embodiment is as follows: The connecting surface 123 of the insulating component 120 is glued to the machined surface 113 of the bus body 110, making the first insulating surface 121 of the insulating component 120 flush with the first surface 111 of the bus body 110, and the second insulating surface 122 flush with the second surface 112. Then, the bus body 110 and the insulating component 120 are completely wrapped with an insulating film 130, so that one side of the insulating film 130 is tightly attached to the first surface 111, the first insulating surface 121, an arc-shaped guide surface 125 and the mating surface 124, and the other side of the insulating film 130 is tightly attached to the second surface 112, the second insulating surface 122, another arc-shaped guide surface 125 and the mating surface 124. Finally, the remaining parts of the insulating film 130 that are not attached to the bus body 110 or the insulating component 120 are fused together by a hot pressing process to form a continuous and complete insulating protective layer.

[0096] 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.

[0097] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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.

[0098] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0099] In the description of this application, "multiple" means two or more.

[0100] 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 it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0101] 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.

[0102] 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.

[0103] 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: Busbar body (110) has a first surface (111) and a second surface (112) disposed opposite to each other, and a machined surface (113) adjacent to the first surface (111) and the second surface (112). An insulating component (120) has a first insulating surface (121) and a second insulating surface (122) disposed opposite to each other, and a connecting surface (123) and a mating surface (124) disposed opposite to each other. The connecting surface (123) is connected to the processing surface (113). The first insulating surface (121) and the first surface (111) face the same side, and the second insulating surface (122) and the second surface (112) face the same side. An insulating film (130) wraps the busbar body (110) and the insulating component (120), and is in contact with at least the first surface (111), the first insulating surface (121), the mating surface (124), the second surface (112), and the second insulating surface (122).

2. The busbar according to claim 1, characterized in that, The connecting surface (123) and the processing surface (113) are connected by adhesive.

3. The busbar according to claim 1, characterized in that, The processing surface (113) and the connecting surface (123) are provided with positioning structures that are mutually positioned and cooperate.

4. The busbar according to claim 3, characterized in that, The positioning structure includes a first meshing surface (117) on the processing surface (113) and a second meshing surface (129) on the connecting surface (123). The first meshing surface (117) meshes with the second meshing surface (129) and extends along a first direction.

5. The busbar according to claim 4, characterized in that, The busbar body (110) has a bending area (115), the area opposite the bending area (115) of the connecting surface (123) does not have a second meshing surface (129), and the bending area (115) does not have a first meshing surface (117).

6. The busbar according to any one of claims 1-5, characterized in that, There are arc-shaped guide surfaces (125) between the first insulating surface (121) and the mating surface (124) and between the second insulating surface (122) and the mating surface (124).

7. The busbar according to any one of claims 1-5, characterized in that, The first insulating surface (121) is flush with the first surface (111), and the second insulating surface (122) is flush with the second surface (112).

8. The busbar according to any one of claims 1-5, characterized in that, The insulating element (120) is made of an elastic material.

9. The busbar according to any one of claims 1-5, characterized in that, The insulating film (130) is respectively attached to the side where the first surface (111) is located and the side where the second surface (112) is located, and the insulating films (130) on both sides are heat-pressed together at the positions corresponding to the mating surface (124).

10. An electrical device, characterized in that, include: Multiple electrical components; The busbar as described in any one of claims 1-9 is used to connect the electrical components.

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