Low-voltage power distribution structure and transfer power distribution box

Abstract

The utility model relates to a low-voltage power distribution structure which is applied to the technical field of electronic equipment, the low-voltage power distribution structure comprises a busbar base body and at least one conducting strip, and a mounting part is preset on one side of the busbar base body; and each conducting strip is fixedly connected with the corresponding mounting part. According to the low-voltage power distribution structure, the conducting strip is fixedly connected with the mounting part, and compared with the mode that the conducting strip is connected with the mounting part through cooperation of bolts and nuts in the related technology, the overall weight of the low-voltage power distribution structure can be reduced; and the installation time of a factory is shortened, and the installation process is simplified.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to low-voltage power distribution structures and transfer distribution boxes. Background Technology

[0002] In today's fiercely competitive automotive industry, major automakers attract consumers through price incentives and improved quality features. This market trend forces auto parts manufacturers to improve product quality while reducing production costs and weight to meet the multiple challenges of price and performance. In the automotive low-voltage power grid, the transfer distribution box is a critical power distribution component, responsible for distributing electrical energy from the main power source to various electrical systems.

[0003] In related technologies, traditional transfer distribution box designs typically use a low-voltage conductive structure composed of components such as copper busbars, bolts, nuts, and conductive plates to achieve current conduction and overcurrent protection. However, while this design method improves current conduction capacity, it leads to additional weight and cost issues, and the assembly process is complex. Utility Model Content

[0004] Therefore, it is necessary to provide a low-voltage power distribution structure and a transfer distribution box to address the problem that the heavy weight of the transfer distribution box in related technologies leads to complex assembly processes.

[0005] In a first aspect, this application provides a low-voltage power distribution structure, including:

[0006] The busbar base has a mounting section pre-installed on one side;

[0007] At least one conductive sheet is provided, and each conductive sheet is fixedly connected to a corresponding mounting part.

[0008] In one embodiment, the conductive sheet and the mounting portion are stamped together.

[0009] In one embodiment, a reinforcement is provided on the side of the busbar substrate away from the conductive sheet.

[0010] In one embodiment, the reinforcement includes a reinforcing groove, which is disposed along the length direction of the busbar substrate.

[0011] In one embodiment, the reinforcing groove is formed by stamping.

[0012] In one embodiment, a gap is formed between the sidewall of the busbar substrate near the reinforcing part and the endwall of the reinforcing part.

[0013] In one embodiment, a number of weight-reducing holes are provided through the busbar substrate.

[0014] In one embodiment, the two corners of the bus substrate on one side of the conductive sheet are rounded.

[0015] In one embodiment, the end of the conductive sheet that is fixedly connected to the mounting portion has a bevel.

[0016] Secondly, this application provides a transfer distribution box, which is applied to any of the low-voltage power distribution structures provided in the first aspect. The transfer distribution box also includes a box body, on which the low-voltage power distribution structure is disposed.

[0017] The aforementioned low-voltage power distribution structure includes a busbar base and at least one conductive plate. A mounting portion is pre-set on one side of the busbar base; each conductive plate is fixedly connected to its corresponding mounting portion. The low-voltage power distribution structure of this application, by fixing the conductive plate to the mounting portion, reduces the overall weight of the low-voltage power distribution structure compared to the bolt-nut connection method used in related technologies. It also reduces factory installation time and simplifies the installation process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram illustrating the connection relationship between the low-voltage conductive structure and the intermediate distribution box in related technologies.

[0020] Figure 2 A structural diagram in related technologies used to illustrate the connection relationship between copper busbars, bolts, nuts, and conductive plates;

[0021] Figure 3 This application includes structural diagrams illustrating the connection relationship between the low-voltage power distribution structure and the intermediate power distribution box in some embodiments;

[0022] Figure 4 This is a schematic diagram illustrating the connection relationship between the busbar substrate and the conductive sheet in some embodiments of this application;

[0023] Figure 5 This is a structural schematic diagram illustrating the positional relationship between the busbar substrate, conductive sheet, weight reduction hole, first mounting hole, and second mounting hole in some embodiments of this application.

[0024] Explanation of icon numbers:

[0025] 100. Low-voltage conductive structure; 110. Copper busbar; 120. Bolt; 130. Nut; 140. Conductive plate; 200. Low-voltage power distribution structure; 210. Busbar base; 212. Mounting part; 214. Weight reduction hole; 216. Rounded corner; 218. First mounting hole; 220. Conductive plate; 222. Bevel; 224. Second mounting hole; 300. Reinforcing part; 310. Reinforcing groove; 320. Notch; 400. Transfer distribution box. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] 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.

[0028] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In this application, unless otherwise expressly 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.

[0031] 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.

[0032] In today's fiercely competitive automotive industry, major automakers attract consumers through price incentives and improved quality features. This market trend forces auto parts manufacturers to improve product quality while reducing production costs and weight to meet the multiple challenges of price and performance. In the automotive low-voltage power grid, the transfer distribution box is a critical power distribution component, responsible for distributing electrical energy from the main power source to various electrical systems. (Refer to...) Figure 1 and Figure 2 In related technologies, traditional transfer distribution box designs typically use a low-voltage conductive structure 100 composed of components such as copper busbars 110, bolts 120, nuts 130, and conductive plates 140 to achieve current conduction and overcurrent protection. However, while this design method improves current conduction capacity, it leads to additional weight and cost issues, and the assembly process is complex.

[0033] To address the problem of complex assembly processes caused by the large weight of intermediate distribution boxes in related technologies, this application provides a low-voltage power distribution structure and an intermediate distribution box. Firstly, referring to... Figure 3 and Figure 4 One embodiment of this application provides a low-voltage power distribution structure 200, which is suitable for a matching transfer distribution box 400. The low-voltage power distribution structure 200 includes a busbar base 210 and at least one conductive sheet 220. A mounting portion 212 is preset on one side of the busbar base 210. Each conductive sheet 220 is fixedly connected to the corresponding mounting portion 212.

[0034] The busbar base 210 is generally rectangular in shape. The mounting portion 212 on the busbar base 210 is formed by stamping. Multiple first mounting holes 218 are provided through the side surface of the busbar base 210. Taking three conductive pieces 220 as an example, all three conductive pieces 220 are located on one side of the busbar base 210 along its own length. One end of the conductive piece 220 is connected to the mounting portion 212 on the busbar base 210, and the other end of the conductive piece 220 extends horizontally away from the busbar base 210. Multiple second mounting holes 224 are provided through the side surface of the end of the conductive piece 220 away from the busbar base 210. Through the cooperation of the second mounting holes 224, the first mounting holes 218, and bolts and nuts, the low-voltage power distribution structure 200 and the transfer distribution box 400 can be detachably connected.

[0035] Specifically, the fixing connection methods in this embodiment include, but are not limited to, welding, stamping, etc., as long as the fixing connection method can reduce the overall weight of the low-voltage power distribution structure 200 compared to the traditional method of connecting the conductive sheet 220 and the busbar base 210 with bolts and nuts. Taking the stamping of the conductive sheet 220 and the busbar base 210 as an example, the fixing connection method in this embodiment can improve the connection strength and stability between the conductive sheet 220 and the mounting part 212, and at the same time reduce the additional components or operations required during the assembly of the low-voltage power distribution structure 200, thereby helping to reduce production costs.

[0036] In this embodiment, the low-voltage power distribution structure 200 achieves a fixed connection between the conductive sheet 220 and the mounting part 212 by stamping. Compared with the method of connecting the conductive sheet 220 and the mounting part 212 by bolts 120 and nuts 130 in related technologies, the overall weight of the low-voltage power distribution structure 200 can be reduced; and it helps to reduce the assembly time of the low-voltage power distribution structure 200, thereby simplifying the installation process of the low-voltage power distribution structure 200.

[0037] Reference Figure 4 In some embodiments, the busbar substrate 210 has a reinforcing portion 300 on the side away from the conductive sheet 220.

[0038] Specifically, the reinforcing part 300 is integrally formed and disposed on the other side of the busbar base 210 along its own length direction. The reinforcing part 300 can improve the mechanical strength and rigidity of the busbar base 210, thereby helping to enhance the stress resistance and deformation resistance of the low-voltage power distribution structure 200 during use, and thus improving the overall reliability of the low-voltage power distribution structure 200.

[0039] In this embodiment, the low-voltage power distribution structure 200 achieves a weight reduction effect through the stamping of the busbar base 210 and the conductive sheet 220. However, in order to ensure the support strength and load-bearing capacity of the busbar base 210, a reinforcing part 300 is provided to enhance the load-bearing capacity and deformation resistance of the low-voltage power distribution structure 200 during use, thereby improving the overall reliability of the low-voltage power distribution structure 200.

[0040] Reference Figure 4 and Figure 5 In some embodiments, the reinforcing part 300 includes a reinforcing groove 310, which is provided along the length direction of the busbar base 210.

[0041] Specifically, the length direction of the reinforcing groove 310 is parallel to the length direction of the manifold base 210, and the reinforcing groove 310 is arranged in a long strip shape.

[0042] In this embodiment, by strengthening the setting of the groove 310, the strength of the busbar base 210 can be further enhanced, and the stability of its structure can be improved, reducing the possibility of deformation or breakage of the busbar base 210 under stress.

[0043] Reference Figure 5 In some embodiments, the reinforcing groove 310 is formed by stamping.

[0044] In this embodiment, the reinforcing groove 310 can be stamped together with the mounting part 212 described above.

[0045] Specifically, stamping is an efficient and precise processing method. By forming the reinforcing groove 310 through stamping, the consistency of the size and shape of the reinforcing groove 310 can be ensured, thereby further enhancing the structural strength and stability of the busbar base 210.

[0046] In this embodiment, the reinforcing groove 310 is formed by stamping, which simplifies the manufacturing process of the busbar base 210 and helps to simplify the assembly process of the low-voltage power distribution structure 200.

[0047] Reference Figure 4 and Figure 5 In some embodiments, a notch 320 is formed between the side wall of the busbar base 210 near the reinforcing part 300 and the end wall of the reinforcing part 300.

[0048] In this embodiment, there are two notches 320, located at both ends of the busbar base 210 on the side of the reinforcing groove 310. The notch 320 has two opening walls, one of which is the end wall of the reinforcing part 300, and the other is the side wall of the busbar base 210 away from the mounting part 212. That is, the end wall of one end of the reinforcing part 300 and the side wall of the nearby busbar base 210 enclose each other to form the notch 320, and the notch 320 is set at a right angle.

[0049] In this embodiment, notches 320 are provided at both ends of the busbar base 210 located on the side of the reinforcing groove 310. This can reduce the amount of material used in the busbar base 210, thereby reducing the weight of the low-voltage power distribution structure 200, improving energy efficiency, and at the same time maintaining the necessary support strength and function.

[0050] Reference Figure 4 and Figure 5 In some embodiments, a plurality of weight-reducing holes 214 are provided through the busbar base 210.

[0051] The weight reduction hole 214 is located on the side of the first mounting hole 218 near the reinforcing groove 310, and the diameter of the weight reduction hole 214 is larger than the diameter of the first mounting hole 218.

[0052] Specifically, the weight reduction hole 214 can further reduce the weight of the busbar base 210, thereby helping to reduce the overall weight of the low-voltage power distribution structure 200, improve energy efficiency, and at the same time maintain the necessary support strength and function.

[0053] In this embodiment, by providing weight reduction holes 214 through the busbar base 210, the weight of the copper sheet can be reduced as much as possible while meeting the current carrying capacity requirements. This reduces the weight of the low-voltage power distribution structure 200 and the transfer distribution box 400, and also helps to reduce the overall vehicle weight.

[0054] Reference Figure 4 In some embodiments, the two corners of the busbar substrate 210 located on one side of the conductive sheet 220 are both rounded corners 216.

[0055] The 216 rounded corner design avoids potential safety hazards caused by sharp edges and helps reduce damage to other components during operation or installation, thereby improving safety and durability.

[0056] Specifically, in this embodiment, in addition to the two corners of the busbar base 210 located on the side of the conductive sheet 220 being rounded 216, the corners of the notch 320 and the corners of the mounting part 212 can also be rounded 216, thereby improving the overall safety and durability of the low-voltage power distribution structure 200.

[0057] In this embodiment, by setting the rounded corner 216, damage to other components caused by the low-voltage power distribution structure 200 during operation or installation can be reduced, thereby improving the safety and durability of the low-voltage power distribution structure 200.

[0058] Reference Figure 4 and Figure 5 In some embodiments, the end of the conductive sheet 220 that is fixedly connected to the mounting portion 212 is provided with a bevel 222.

[0059] The thickness of the conductive sheet 220 at one end with the inclined surface 222 gradually increases from the direction away from the busbar substrate 210 until it is consistent with the thickness of the middle part of the conductive sheet 220.

[0060] Specifically, a bevel 222 is provided at the end where the conductive sheet 220 is fixedly connected to the mounting part 212. This simplifies the installation process and reduces stress concentration at the connection between the conductive sheet 220 and the busbar base 210, thereby improving connection strength and increasing assembly efficiency and reliability.

[0061] In this embodiment, by setting the inclined surface 222, the stress concentration at the connection between the conductive sheet 220 and the busbar base 210 is reduced, thereby improving the connection strength, assembly efficiency and reliability. At the same time, the weight of the low-voltage power distribution structure 200 can be further reduced, thereby further reducing the weight of the transfer distribution box 400.

[0062] The low-voltage power distribution structure 200 in this application reduces the overall weight of the low-voltage power distribution structure 200 by stamping the conductive sheet 220 and the mounting part 212 together, and by stamping reinforcing grooves 310 on the busbar base 210. This also reduces the assembly time of the low-voltage power distribution structure 200, thereby simplifying the installation process. Furthermore, the notch 320, rounded corner 216, and weight-reducing holes 214 ensure the normal function and support strength of the low-voltage power distribution structure 200 while also providing additional support. Further reducing the amount of material used in the busbar base 210 can further reduce the weight of the low-voltage power distribution structure 200 and improve energy efficiency. In addition, by providing a bevel 222 at the end where the conductive sheet 220 is fixedly connected to the mounting part 212, stress concentration at the connection between the conductive sheet 220 and the busbar base 210 can be reduced, and connection strength can be improved. This can improve assembly efficiency and reliability, while further reducing the weight of the low-voltage power distribution structure 200, thereby further reducing the weight of the transfer distribution box 400.

[0063] Secondly, referring to Figures 3 to 5 One embodiment of this application provides a transfer distribution box 400, which is applied to any of the low-voltage power distribution structures 200 provided in the first aspect above. The transfer distribution box 400 also includes a box body, on which the low-voltage power distribution structure 200 is disposed.

[0064] The box body is provided with a first mounting hole corresponding to the first mounting hole 218, and the box body is also provided with a second mounting hole corresponding to the second mounting hole 224.

[0065] Specifically, after the worker places the low-voltage power distribution structure 200 in the corresponding installation position on the box, the first mounting hole 218 is opposite to and connected to the first assembly hole, and the second mounting hole 224 is opposite to and connected to the second assembly hole. Then, by using bolts and nuts, the busbar base 210 is fixed to the box, and the conductive sheet 220 is fixed to the box, thereby achieving the fixation of the low-voltage power distribution structure 200 to the box.

[0066] In this application, the transfer distribution box 400, after incorporating the aforementioned low-voltage power distribution structure 200, simplifies the connection process between the conductive sheet 220 and the busbar base 210 because they are stamped together. This eliminates the need for additional bolts and nuts to install the conductive sheet 220 and busbar base 210, thus reducing the weight of the low-voltage power distribution structure 200. Furthermore, the notch 320, rounded corner 216, and weight-reducing hole 214 further enhance the weight reduction while maintaining the normal function and support strength of the low-voltage power distribution structure 200. The reduced material usage of the busbar substrate 210 further reduces the weight of the low-voltage power distribution structure 200. Additionally, the bevel 222 at the end where the conductive sheet 220 is fixedly connected to the mounting portion 212 reduces stress concentration at the connection between the conductive sheet 220 and the busbar substrate 210, improves connection strength, and enhances assembly efficiency and reliability. This further reduces the weight of the low-voltage power distribution structure 200, thereby further reducing the weight of the transfer distribution box 400. This contributes to achieving the lightweight design goals of the transfer distribution box 400 and the overall vehicle weight reduction design goals.

[0067] In the description of this specification, references to terms such as "some embodiments," "other embodiments," 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 descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0068] 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.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A low-voltage power distribution structure, characterized in that, The low-voltage power distribution structure includes: A busbar base, wherein a mounting portion is pre-set on one side of the busbar base; At least one conductive sheet, and each conductive sheet is fixedly connected to a corresponding mounting portion; The busbar substrate has a reinforcing portion on the side away from the conductive sheet, and a notch is formed between the side wall of the busbar substrate near the reinforcing portion and the end wall of the reinforcing portion; the reinforcing portion includes a reinforcing groove, which is arranged along the length direction of the busbar substrate and is formed by stamping.

2. The low-voltage power distribution structure according to claim 1, characterized in that, The conductive sheet and the mounting portion are stamped together.

3. The low-voltage power distribution structure according to claim 1, characterized in that, The reinforcing groove is arranged in a long strip shape.

4. The low-voltage power distribution structure according to claim 1, characterized in that, The notch has two opening walls, one of which is the end wall of the reinforcing part, and the other is the side wall of the busbar base away from the mounting part.

5. The low-voltage power distribution structure according to claim 1, characterized in that, The busbar base has multiple first mounting holes through its side surface, and the conductive sheet has multiple second mounting holes through its side surface at the end away from the busbar base. The first mounting holes and the second mounting holes are used to engage with bolts and nuts to make the low-voltage power distribution structure detachable.

6. The low-voltage power distribution structure according to claim 5, characterized in that, The busbar substrate is provided with several weight-reducing holes.

7. The low-voltage power distribution structure according to claim 6, characterized in that, The weight-reducing hole is located on the side of the first mounting hole near the reinforcing groove, and the diameter of the weight-reducing hole is larger than the diameter of the first mounting hole.

8. The low-voltage power distribution structure according to claim 1, characterized in that, The busbar substrate has two rounded corners on one side of the conductive sheet.

9. The low-voltage power distribution structure according to claim 1, characterized in that, The end of the conductive sheet that is fixedly connected to the mounting part has an inclined surface.

10. A transfer distribution box, characterized in that, The low-voltage power distribution structure includes any one of claims 1-9, wherein the transfer distribution box further includes a box body, and the low-voltage power distribution structure is disposed on the box body.

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