Flat bend composite aluminum busbar

Abstract

The utility model discloses a kind of flat bending composite aluminium row, which belongs to the technical field of conductive material, it includes: laminated first flat bending aluminium row and second flat bending aluminium row, and the insulating layer between the two. The first flat bending aluminium row is provided with a first flat body, a first bending part and a plurality of first electrical terminals; the second flat bending aluminium row is provided with a second flat body, a second bending part and a plurality of second electrical terminals; the two bending parts are oppositely arranged, and the two electrical terminals are staggered. Further, the two flat bodies are provided with mutually matched protruding positioning connecting parts and positioning grooves, achieving precise positioning and mechanical interlocking; the first flat body is also provided with an electrical pole that can pass through the accommodation slot on the second flat body. The utility model is compact in structure, reliable in insulation, convenient to install, can realize flexible distribution and transmission of multi-channel current, and is suitable for high-density electrical equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of conductive materials, and in particular to a flat-bent composite aluminum busbar. Background Technology

[0002] Aluminum busbars are commonly used conductive components in power distribution systems, widely used in transformers, distribution cabinets, main power switches, and power transmission between branch switches. Traditional aluminum busbars are mostly made of a single aluminum plate, with a simple structure and usually a straight shape. They can only realize current transmission in a straight direction and cannot meet the needs of non-coplanar or non-collinear electrical connections, nor do they have the function of current shunting transmission.

[0003] In the prior art, in order to solve the above problems, some irregular aluminum busbar structures have emerged. For example, the technical solution of an irregular aluminum busbar disclosed in Chinese patent document CN218497801U includes a first irregular aluminum busbar and a second irregular aluminum busbar. By setting multiple vertical bends, the aluminum busbars can connect connection points on different horizontal planes or different vertical planes, and the two aluminum busbars are connected by a fixed connection device to achieve a certain degree of power diversion or convergence.

[0004] However, this existing technology still has the following limitations: 1. Simple structure and low integration: Although it has bending and connecting functions, it is still a mechanical splicing of single or double independent aluminum bars, which occupies a large space and is not conducive to the arrangement in compact electrical equipment.

[0005] 2. Insufficient electrical isolation: The multi-layer aluminum busbars are only fixed by mechanical connectors such as bolts, lacking effective insulation and isolation measures, which poses electrical safety risks in high-voltage or multi-circuit applications.

[0006] 3. Inconvenient installation and positioning: The alignment between aluminum bars mainly relies on perforations and bolts. Precise alignment is required during installation, which is inefficient. In addition, there is a lack of auxiliary positioning structures, which makes them prone to displacement under vibration or thermal stress.

[0007] 4. Limited scalability and adaptability: The fixed layout of the power connection terminals makes it difficult to flexibly adapt to the spatial distribution requirements of different equipment interfaces, and the flexibility of the current distribution path needs to be improved.

[0008] Therefore, there is an urgent need in this field for an aluminum busbar structure that is compact, reliably insulated, easy to install, and has flexible multi-channel conductivity to meet the high-density and high-reliability assembly requirements of modern power equipment. Utility Model Content

[0009] Based on this, in order to overcome the shortcomings of the prior art, this utility model provides a flat-bent composite aluminum busbar, which aims to achieve compact stacking, reliable insulation, precise positioning, and flexible distribution and transmission of multiple currents in the multi-layer conductive busbar.

[0010] Specifically, the technical solution of this utility model is as follows: A flat-bent composite aluminum busbar includes a first flat-bent aluminum busbar, a second flat-bent aluminum busbar, and an insulating layer.

[0011] The first flat-bent aluminum busbar and the second flat-bent aluminum busbar are stacked together, and the insulating layer is disposed between the first flat-bent aluminum busbar and the second flat-bent aluminum busbar to achieve electrical insulation between the two.

[0012] The first flat-bent aluminum busbar is provided with a first planar main body, a first bending portion, and a plurality of first electrical terminals. The first bending portion is provided on one side of the first planar main body, and a plurality of first electrical terminals are evenly spaced on the other side of the first planar main body.

[0013] The second flat-bent aluminum busbar has a second planar main body, a second bending portion, and a plurality of second electrical terminals. The second bending portion is provided on one side of the second planar main body, and a plurality of second electrical terminals are evenly spaced on the other side of the second planar main body. The second bending portion is arranged opposite to the first bending portion, and the second electrical terminals are staggered from the first electrical terminals.

[0014] Furthermore, the first planar main body has a first aluminum strip panel, a plurality of first protruding positioning connecting parts, and a plurality of first positioning grooves. The plurality of first protruding positioning connecting parts and the plurality of first positioning grooves are evenly and alternately distributed in the first aluminum strip panel.

[0015] Furthermore, the second planar main body has a second aluminum strip panel, a plurality of second protruding positioning connecting parts, and a plurality of second positioning grooves. The plurality of second protruding positioning connecting parts and the plurality of second positioning grooves are evenly and alternately distributed in the second aluminum strip panel.

[0016] Furthermore, each of the first protruding positioning connecting parts is matched and connected to a second positioning groove; each of the first positioning grooves is matched and connected to a second protruding positioning connecting part. Through the interlocking of the protrusions and grooves, the two layers of aluminum strips are precisely positioned and mechanically interlocked in the horizontal direction, preventing relative slippage and improving the overall structural integrity.

[0017] Furthermore, the insulating layer is a material with good insulation properties and a certain degree of flexibility, such as a plastic sheet or insulating paper, and its shape matches the first planar body or the second planar body, covering the contact surface between the two.

[0018] Furthermore, the first planar body also has a plurality of first electrode posts, evenly distributed on the first aluminum busbar panel. The second planar body has a plurality of second electrode recessing grooves, evenly distributed on the second aluminum busbar panel. When the second planar body is stacked on the first planar body, the first electrode posts pass through the second electrode recessing grooves and extend beyond the second aluminum busbar panel. This design allows the electrode posts of the first flat-bent aluminum busbar to pass through the second flat-bent aluminum busbar, facilitating the independent extraction of electrical connection points from the upper layer and realizing circuit extraction in three-dimensional space.

[0019] Furthermore, the first bending portion has a first bending body and a plurality of first mounting slots. The first bending body is connected to one side of the first aluminum busbar panel, and the plurality of first mounting slots are evenly distributed on the first bending body for engaging with the equipment bracket or insulator to achieve quick installation and fixation.

[0020] Furthermore, the second bending portion has a second bending body and a plurality of second mounting slots. The second bending body is connected to one side of the second aluminum strip panel, and the plurality of second mounting slots are evenly distributed on the second bending body, having the same function as the first mounting slots.

[0021] Furthermore, the first electrical terminal has a first terminal body and a plurality of first electrical connection holes. The first terminal body is connected to the side of the first aluminum busbar panel, and the plurality of first electrical connection holes are evenly spaced and disposed in the first terminal body for connecting wires or other electrical components by bolts.

[0022] Furthermore, the second power terminal has a second terminal body and a plurality of second power connection holes. The second terminal body is connected to the side of the second aluminum busbar panel, and the plurality of second power connection holes are evenly spaced and distributed in the second terminal body, serving the same function as the first power connection holes. The first power terminal and the second power terminal are staggered to avoid spatial interference and facilitate wiring operations.

[0023] Compared with the prior art, the beneficial effects of this utility model include: 1. Compact structure and high space utilization: Through the double-layer aluminum busbar composite design and the insulation layer in the middle, two independent conductive channels are realized within a unit volume, which greatly saves installation space and is suitable for high-density electrical cabinets.

[0024] 2. Electrical safety and reliability: The insulation layer effectively isolates the two aluminum busbars, preventing interlayer short circuits and improving safety and reliability in high-voltage or multi-circuit applications.

[0025] 3. Easy installation and precise positioning: The interlocking structure of the raised positioning connector and the positioning groove enables quick and precise alignment and fixation of the two layers of aluminum busbars, eliminating the need for complex tooling and improving assembly efficiency and accuracy. The design of the mounting slot further simplifies the process of fixing the overall busbar to the equipment frame.

[0026] 4. Flexible wiring and strong functional expandability: The staggered distribution of electrical terminals and the through-type electrical posts make the introduction, extraction and branching of current more flexible, which can easily adapt to the layout requirements of different electrical interfaces, improving the versatility and applicability of the product.

[0027] 5. Good mechanical strength and stability: The interlocking structure enhances the interlayer bonding force, making the overall structure stable and better able to resist the effects of vibration and thermal stress, ensuring long-term operational reliability. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the flat-bent composite aluminum busbar of this utility model; Figure 2 This is an exploded structural diagram of the flat-bent composite aluminum busbar of this utility model from another direction; Figure 3 This is an exploded structural diagram of the flat-bent composite aluminum busbar of this utility model from another direction. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "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 are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Please refer to the following: Figures 1 to 3 The present invention relates to a flat-bent composite aluminum busbar, comprising: A first flat-bent aluminum busbar 1, a second flat-bent aluminum busbar 2, and an insulating layer 3 are provided. The first flat-bent aluminum busbar 1 and the second flat-bent aluminum busbar 2 are stacked, and the insulating layer 3 is disposed between the first flat-bent aluminum busbar 1 and the second flat-bent aluminum busbar 2. The first flat-bent aluminum busbar 1 is provided with a first planar body 101, a first bending portion 102, and a plurality of first electrical terminals 103. The first bending portion 102 is provided on one side of the first planar body 101, and a plurality of first electrical terminals 103 are evenly distributed on the other side of the first planar body 101. The second flat-bent aluminum busbar 2 is provided with a second planar body 201, a second bending portion 202, and a plurality of second electrical terminals 203. The second bending portion 202 is provided on one side of the second planar body 201, and a plurality of second electrical terminals 203 are evenly distributed on the other side of the second planar body 201. The second bending portion 202 is disposed opposite to the first bending portion 102, and the second electrical terminals 203 are staggered from the first electrical terminals 103.

[0036] Furthermore, the first planar main body 101 has a first aluminum strip panel 101a, a plurality of first protruding positioning connecting parts 101b and a plurality of first positioning grooves 101c; the first aluminum strip panel 101a is evenly and alternately provided with a plurality of first protruding positioning connecting parts 101b and a plurality of first positioning grooves 101c.

[0037] Furthermore, the second planar main body 201 has a second aluminum strip panel 201a, a plurality of second protruding positioning connecting parts 201b and a plurality of second positioning grooves 201c; the second aluminum strip panel 201a is evenly and alternately provided with a plurality of second protruding positioning connecting parts 201b and a plurality of second positioning grooves 201c.

[0038] Furthermore, each of the first protrusion positioning connection portions 101b is matched and connected with a second positioning groove 201c; each of the first positioning grooves 101c is matched and connected with a second protrusion positioning connection portion 201b.

[0039] Specifically, the insulating layer 3 is an insulating material sheet with a certain thickness and flexibility, such as an epoxy resin board, polyimide film, or insulating paper, and its shape matches the first aluminum busbar panel 101a or the second aluminum busbar panel 201a.

[0040] Furthermore, the first planar body 101 also has a first electrode post 101d, and a plurality of the first electrode posts 101d are evenly distributed on the first aluminum busbar panel 101a; the second planar body 201 has a second electrode clearance groove 201d, and a plurality of the second electrode clearance grooves 201d are evenly distributed on the second aluminum busbar panel 201a. When the second planar body 201 is stacked on the first planar body 101, the first electrode posts 101d pass through the second electrode clearance grooves 201d and extend beyond the second aluminum busbar panel 201a.

[0041] Furthermore, the first bending portion 102 has a first bending body 102a and a plurality of first mounting slots 102b; the first bending body 102a is connected to one side of the first aluminum strip panel 101a, and the plurality of first mounting slots 102b are evenly distributed on the first bending body 102a.

[0042] Furthermore, the second bending portion 202 has a second bending body 202a and a plurality of second mounting slots 202b; the second bending body 202a is connected to one side of the second aluminum strip panel 201a, and the plurality of second mounting slots 202b are evenly distributed on the second bending body 202a.

[0043] Furthermore, the first power terminal 103 has a first terminal body 103a and a plurality of first power connection holes 103b; the first terminal body 103a is connected to the side of the first aluminum busbar panel 101a, and the plurality of first power connection holes 103b are evenly spaced and disposed in the first terminal body 103a.

[0044] Furthermore, the second power terminal 203 has a second terminal body 203a and a plurality of second power connection holes 203b; the second terminal body 203a is connected to the side of the second aluminum busbar panel 201a, and the plurality of second power connection holes 203b are evenly spaced and disposed in the second terminal body 203a.

[0045] Specifically, in implementing this utility model, the first flat-bent aluminum busbar 1 and the second flat-bent aluminum busbar 2 are first prepared. They can be integrally formed by extrusion, stamping, bending and other processes, including the planar main body, bending part, electrical terminal, protruding positioning connection part, positioning groove, electrode post and electrode clearance groove.

[0046] The insulating layer 3 is laid flat on the first aluminum busbar panel 101a of the first flat-bent aluminum busbar 1. Then, the second aluminum busbar panel 201a of the second flat-bent aluminum busbar 2 is aligned and placed on the insulating layer 3. At this time, the second protruding positioning connection part 201b on the second flat-bent aluminum busbar 2 should accurately fall into the first positioning groove 101c on the first flat-bent aluminum busbar 1, and at the same time, the first protruding positioning connection part 101b on the first flat-bent aluminum busbar 1 should also accurately fall into the second positioning groove 201c on the second flat-bent aluminum busbar 2, achieving precise positioning and initial locking. At the same time, the first electrode post 101d on the first flat-bent aluminum busbar 1 should pass through the corresponding second electrode clearance groove 201d on the second flat-bent aluminum busbar 2.

[0047] Subsequently, the laminate can be further secured using auxiliary fasteners or a small amount of adhesive to ensure a tight fit between the insulation layer 3 and the aluminum busbar. After assembly, the first mounting slot 102b on the first bend 102 and the second mounting slot 202b on the second bend 202 can be used to fix the entire composite aluminum busbar assembly to the bracket or insulating support of the distribution cabinet.

[0048] During electrical connections, the terminals of external cables or components can be connected to the first electrical connection hole 103b on the first electrical connection terminal 103 or the second electrical connection hole 203b on the second electrical connection terminal 203 via bolts. The exposed portion of the first electrical electrode post 101d can also be directly connected to cables or used as a test point. Due to the electrical isolation between the two aluminum busbars, they can each carry different phase or loop currents, enabling multi-channel power transmission and distribution within a compact space.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flat-bent composite aluminum busbar, characterized in that, include: A first flat-bent aluminum busbar (1), a second flat-bent aluminum busbar (2), and an insulating layer (3); the first flat-bent aluminum busbar (1) and the second flat-bent aluminum busbar (2) are stacked, and the insulating layer (3) is disposed between the first flat-bent aluminum busbar (1) and the second flat-bent aluminum busbar (2); the first flat-bent aluminum busbar (1) is provided with a first planar body (101), a first bending portion (102), and a plurality of first electrical terminals (103); the first bending portion (102) is provided on one side of the first planar body (101), and a plurality of first electrical terminals (103) are evenly spaced on the other side of the first planar body (101). The first electrical terminal (103) is dry; the second flat-bent aluminum busbar (2) has a second planar body (201), a second bend (202) and a plurality of second electrical terminals (203); the second bend (202) is provided on one side of the second planar body (201), and a plurality of second electrical terminals (203) are evenly spaced on the other side of the second planar body (201); the second bend (202) is arranged opposite to the first bend (102), and the second electrical terminals (203) are staggered from the first electrical terminals (103).

2. The flat-bent composite aluminum busbar according to claim 1, characterized in that: The first planar body (101) has a first aluminum strip panel (101a), a plurality of first protruding positioning connecting parts (101b) and a plurality of first positioning grooves (101c); the first aluminum strip panel (101a) is evenly and alternately provided with a plurality of first protruding positioning connecting parts (101b) and a plurality of first positioning grooves (101c).

3. The flat-bent composite aluminum busbar according to claim 2, characterized in that: The second planar main body (201) has a second aluminum strip panel (201a), a plurality of second protruding positioning connecting parts (201b) and a plurality of second positioning grooves (201c); the second aluminum strip panel (201a) is evenly and alternately provided with a plurality of second protruding positioning connecting parts (201b) and a plurality of second positioning grooves (201c).

4. The flat-bent composite aluminum busbar according to claim 3, characterized in that: Each of the first protrusion positioning connection parts (101b) is matched and connected with a second positioning groove (201c); each of the first positioning grooves (101c) is matched and connected with a second protrusion positioning connection part (201b).

5. The flat-bent composite aluminum busbar according to claim 1, characterized in that: The first planar body (101) also has a plurality of first electrode posts (101d) evenly distributed on the first aluminum busbar panel (101a); the second planar body (201) has a plurality of second electrode clearance grooves (201d) evenly distributed on the second aluminum busbar panel (201a); when the second planar body (201) is stacked on the first planar body (101), the first electrode posts (101d) pass through the second electrode clearance grooves (201d) and extend out of the second aluminum busbar panel (201a).

6. The flat-bent composite aluminum busbar according to claim 1, characterized in that: The first bending part (102) has a first bending body (102a) and a plurality of first mounting slots (102b); the first bending body (102a) is connected to one side of the first aluminum strip panel (101a), and the plurality of first mounting slots (102b) are evenly distributed on the first bending body (102a).

7. The flat-bent composite aluminum busbar according to claim 6, characterized in that: The second bending portion (202) has a second bending body (202a) and a plurality of second mounting slots (202b); the second bending body (202a) is connected to one side of the second aluminum strip panel (201a), and the plurality of second mounting slots (202b) are evenly distributed on the second bending body (202a).

8. The flat-bent composite aluminum busbar according to claim 1, characterized in that: The first power terminal (103) has a first terminal body (103a) and a plurality of first power connection holes (103b); the first terminal body (103a) is connected to the side of the first aluminum busbar panel (101a), and the plurality of first power connection holes (103b) are evenly spaced and disposed in the first terminal body (103a).

9. The flat-bent composite aluminum busbar according to claim 1, characterized in that: The second power terminal (203) has a second terminal body (203a) and a plurality of second power connection holes (203b); the second terminal body (203a) is connected to the side of the second aluminum busbar panel (201a), and the plurality of second power connection holes (203b) are evenly spaced and disposed in the second terminal body (203a).

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