Copper bar connector, PDU structure and electronic equipment

By using bent positive and negative copper busbars to form multi-layer conductors in the PDU structure and using insulating support components for connection, the problem of chaotic copper busbar layout is solved, and the convenience of copper busbar assembly and space utilization are improved.

CN223828862UActive Publication Date: 2026-01-23INVT ELECTRIC VEHICLE DRIVE TECH SHENZHEN CO LTD
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Patent Information

Application Number
CN202422636331.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2026-01-23
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

In the PDU structure of new energy electric vehicles and other equipment, the copper busbar layout is chaotic, which makes assembly difficult.

Method used

The positive and negative copper busbars are formed by bending to create a multi-layered conductor, and supported in the height direction by insulating support components, so as to achieve a unified connection of electrical connection points, reduce the number of copper busbars, and improve assembly convenience.

Benefits of technology

It reduces the difficulty of assembling copper busbars, improves space utilization and structural compactness, and simplifies the processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a copper bar connector, a PDU structure and electronic equipment, and relates to the technical field of power supply equipment. The copper bar connector comprises a first copper bar and a second copper bar, one of the first copper bar and the second copper bar is a positive copper bar, and the other one is a negative copper bar; the first copper bar is bent to form a plurality of layers of first conductors in the height direction; the second copper bar is bent to form multiple layers of second conductors in the height direction, and the first conductors and the second conductors are respectively provided with electric connection points. In the copper bar connector, the positive copper bar is provided with a plurality of positive electrode connecting points, the negative copper bar is provided with a plurality of negative electrode connecting points, unified connection of different electric elements can be realized, the number of required copper bars is reduced, the assembly difficulty is reduced, the positive copper bar and the negative copper bar are respectively bent to form different layers of conductors, the processing is convenient, and the cost is low. When the copper bar connector is adaptive to the assembly heights of different electric elements, the utilization rate of the height space can be improved, and the structural compactness of equipment applied to the copper bar connector can be improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to power supply equipment technical field especially relates to a copper bar connector, PDU structure and electronic equipment. BACKGROUND

[0002] PDU (Power Distribution Unit, power distribution unit) is an important part in the power supply field, and is an important pivot of current distribution and current control.

[0003] In the PDU structure of some new energy electric vehicles and other equipment, when the copper bar is arranged, a plurality of positive copper bars and a plurality of negative copper bars are used to electrically connect the power consumption modules to the battery, which leads to the copper bar layering confusion and large assembly difficulty.

[0004] Therefore, how to provide a copper bar assembly convenient is a technical problem that the person skilled in the art needs to solve at present. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at providing a copper bar connector, PDU structure and electronic equipment, which is convenient to assemble in the PDU structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A copper bar connector, comprising a first copper bar and a second copper bar, one of the first copper bar and the second copper bar is a positive copper bar, and the other is a negative copper bar; the first copper bar is bent to form a plurality of first conductive bodies in the height direction; the second copper bar is bent to form a plurality of second conductive bodies in the height direction, and each first conductive body and each second conductive body has an electrical connection point.

[0008] Preferably, it further comprises an insulating support; the top layer of the first conductive body in the first copper bar is a first upper layer conductive body, and the top layer of the second conductive body in the second copper bar is a second upper layer conductive body, and the first upper layer conductive body and the second upper layer conductive body are connected above the support.

[0009] Preferably, in the first direction X, the first upper layer conductive body and the second upper layer conductive body are distributed on both sides of the support.

[0010] Preferably, in the first direction X, the first upper layer conductive body is located on the first side of the support, and the second upper layer conductive body is located on the second side of the support.

[0011] The first conductor of the first upper layer conductor next layer is a first lower layer conductor, and the second conductor of the second upper layer conductor next layer is a second lower layer conductor, and the first lower layer conductor and the second lower layer conductor are both located on the first side.

[0012] Preferably, the first copper bar further comprises a first bending arm, and the support and the first lower layer conductor are located on two sides of the first upper layer conductor in the first direction X, and the first upper layer conductor connects the first lower layer conductor through the first bending arm.

[0013] And / or,

[0014] The second copper bar further comprises a second bending arm, and the second upper layer conductor connects the second lower layer conductor through the second bending arm, and the second lower layer conductor comprises a front conductor and a rear conductor, and the front conductor is located directly below the first upper layer conductor, and two ends of the front conductor are respectively connected to the rear conductor and the second bending arm.

[0015] Preferably, the connection points of the first upper layer conductor, the second upper layer conductor and the support are alternately arranged in the second direction.

[0016] Preferably, the support comprises a plurality of support blocks arranged in sequence along the second direction, and each of the support blocks has two connection points connected to the first upper layer conductor and the second upper layer conductor, respectively.

[0017] Preferably, the first conductor and the second conductor have the same number of layers, and the first conductors and the second conductors of the same number of layers are arranged in the same plane from top to bottom.

[0018] A PDU structure comprises a cabinet and a copper bar connector as described above, the copper bar connector is arranged in the cabinet, the support block is fixed to the cabinet, and a connecting edge is protrudingly arranged at the bottom end of the outer side of the cabinet for screwing into a vehicle-mounted charging device.

[0019] An electronic device comprises a copper bar connector as described above.

[0020] The copper bar connector comprises a first copper bar and a second copper bar, one of the first copper bar and the second copper bar is a positive copper bar, and the other is a negative copper bar; the first copper bar is bent to form a plurality of first conductors in the height direction; the second copper bar is bent to form a plurality of second conductors in the height direction, and each first conductor and each second conductor has an electrical connection point.

[0021] In this type of copper busbar connector, the positive copper busbar has multiple positive connection points and the negative copper busbar has multiple negative connection points, which can realize the unified connection of different electrical components, reduce the number of copper busbars required, and reduce assembly difficulty. Furthermore, the positive and negative copper busbars are bent to form different layers of conductors, which is convenient for processing. While adapting to the assembly height of different electrical components, it can improve the utilization rate of height space and improve the structural compactness of the equipment in which the copper busbar connector is used.

[0022] In a preferred embodiment, the first and second conductors of the top layer are connected and supported above the support member. The connection operation can be performed above the support member, which is convenient for assembly and provides sufficient assembly space for the first and second conductors of other layers. This avoids the first and second conductors of the bottom layer from hitting other equipment at the bottom, thus improving the convenience of copper busbar assembly. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 The diagram shows the arrangement of the positive and negative copper busbars in a specific embodiment of the copper busbar connector provided by this utility model.

[0025] Figure 2 This is a schematic diagram of a specific embodiment of the PDU structure provided by this utility model;

[0026] Figure 3 for Figure 2 A partial top view of the structure;

[0027] Figure 4 This is a partial structural schematic diagram of a specific embodiment of the PDU structure provided by this utility model;

[0028] Figure 5 for Figure 4 Top view;

[0029] Figure 6 This is a schematic diagram of a specific embodiment two of the PDU structure provided by this utility model;

[0030] Figure 7 for Figure 6 Top view;

[0031] Figure 8 This is a schematic diagram showing the arrangement of the connection through holes on the connection edge of the vehicle charging device provided by this utility model, corresponding to different charging platforms.

[0032] Figure 9 The structure diagram of the first embodiment of the vehicle-mounted charging device provided by the utility model has a 6.6kw charging platform.

[0033] Figure 10 The structure diagram of the second embodiment of the vehicle-mounted charging device provided by the utility model has a 3.3kw charging platform.

[0034] Reference signs:

[0035] The first copper bar 1, the first upper layer conductor 11, the first lower layer conductor 12, the first bending arm 13, and the first supporting column 14.

[0036] The second copper bar 2, the second upper layer conductor 21, the second lower layer conductor 22, the front conductor 221, the rear conductor 222, the second bending arm 23, and the second supporting column 24.

[0037] The connector 3, and the high-voltage connector 31.

[0038] The case 4, and the connecting edge 41.

[0039] The supporting piece 5, and the supporting block 51.

[0040] The safety power distribution module 6.

[0041] The charging platform 7.

[0042] The fastening screw 8. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0044] The core of the utility model is to provide a copper bar connector, a PDU structure and electronic equipment, and the copper bar assembly in the PDU structure is more convenient.

[0045] The copper bar connector and the PDU structure provided by the utility model can be applied to new energy electric vehicles and serve as the PDU of new energy electric vehicles.

[0046] In the first embodiment of the copper bar connector, please refer to Figure 1 The copper bar connector includes the first copper bar 1 and the second copper bar 2.

[0047] In this configuration, the first copper busbar 1 is a positive copper busbar, and the second copper busbar 2 is a negative copper busbar. The electrical connection points on the positive copper busbar are positive terminal connection points, used to electrically connect to the positive terminal of the electrical component; the electrical connection points on the negative copper busbar are negative terminal connection points, used to electrically connect to the negative terminal of the electrical component. Of course, in other embodiments, the first copper busbar 1 can also be a negative copper busbar, and the second copper busbar 2 can also be a positive copper busbar. Furthermore, only one first copper busbar 1 and one second copper busbar 2 are provided. When a greater number of electrical connection points are needed, this can be achieved by increasing the area or number of the first copper busbar 1 and the second copper busbar 2.

[0048] like Figure 1 As shown, the first copper busbar 1 is bent to form multiple layers of first conductors, each of which has an electrical connection point. The layers of first conductors are arranged sequentially in the height direction Z, with the top layer being the first upper conductor 11.

[0049] like Figure 1 As shown, the second copper busbar 2 is bent to form multiple layers of second conductors, each of which has an electrical connection point. The layers of second conductors are arranged sequentially in the height direction Z, with the top layer being the second upper conductor 21.

[0050] like Figure 1 As shown, in this embodiment, both the first conductor and the second conductor are two layers. The first conductor at the top layer is the first upper conductor 11, and the first conductor at the bottom layer is the first lower conductor 12; the second conductor at the top layer is the second upper conductor 21, and the second conductor at the bottom layer is the second lower conductor 22. In this case, the first copper busbar 1 can form two first conductors through two bends, and the second copper busbar 2 can form two second conductors through two bends. In other embodiments, the first conductor and the second conductor can also be set to other numbers of layers, such as three layers.

[0051] The copper busbar connector provided in this embodiment has multiple positive connection points on the positive copper busbar and multiple negative connection points on the negative copper busbar, which can realize the unified connection of different electrical components, reduce the number of copper busbars required, and reduce assembly difficulty. Furthermore, the positive and negative copper busbars are formed into different layers of conductors by bending, which is convenient for processing. While adapting to the assembly height of different electrical components, it can improve the utilization rate of height space and improve the structural compactness of the equipment in which the copper busbar connector is used.

[0052] like Figures 1 to 5 As shown, the copper busbar connector also includes an insulating support member 5. The top layer first conductor in the first copper busbar 1 is the first upper conductor 11, and the top layer second conductor in the second copper busbar 2 is the second upper conductor 21. Both the first upper conductor 11 and the second upper conductor 21 are connected above the support member 5.

[0053] At this point, the first and second conductors of the top layer are connected and supported above the support member 5. The connection operation can be carried out above the support member 5, which is convenient for assembly and provides sufficient assembly space for the first and second conductors of other layers. This avoids the first and second conductors of the bottom layer from hitting other equipment below, and improves the convenience of copper busbar assembly.

[0054] It should be noted that the copper busbar connector provided by this utility model can be applied to PDU structures. The further configuration of the copper busbar connector is explained in conjunction with its application in PDU structures, but it should not be construed as a limitation on the application of the copper busbar connector. For example, it can also be applied to distribution boxes.

[0055] In the PDU structure, such as Figures 2 to 5 As shown, it includes a chassis 4, in which a copper busbar connector as described in any of the above embodiments is disposed, specifically including a first copper busbar 1, a second copper busbar 2 and an insulating support member 5.

[0056] In this design, the first copper busbar 1 is the positive copper busbar, and the second copper busbar 2 is the negative copper busbar. The electrical connection points on the positive copper busbar are positive terminals, used to electrically connect to the positive terminal of the battery or power module; the electrical connection points on the negative copper busbar are negative terminals, used to electrically connect to the negative terminal of the battery or power module. Specifically, refer to... Figure 3 The battery includes a BAT (Battery), and the power supply module includes devices such as a GCU (Generator Control Unit) and an MCU (Microcontroller Unit). In this configuration, a positive copper busbar and a negative copper busbar can establish electrical connections at six points (c1, c2, c3, d1, d2, d3) and two high-current loops (BAT to MCU, BAT to GCU). Additionally, the first copper busbar 1 and the second copper busbar 2 can be connected to the battery or the power supply module via connector 3 on the chassis 4.

[0057] Of course, in other embodiments, the first copper busbar 1 can also be a negative copper busbar, and the second copper busbar 2 can also be a positive copper busbar. In addition, one first copper busbar 1 and one second copper busbar 2 are each provided. When a larger number of electrical connection points are required, this can be achieved by increasing the area or number of the first copper busbar 1 and the second copper busbar 2.

[0058] like Figure 1 As shown, the first copper busbar 1 is bent to form multiple layers of first conductors, each of which has an electrical connection point. The layers of first conductors are arranged sequentially in the height direction Z, with the top layer being the first upper conductor 11. The first upper conductor 11 is connected to the support member 5 above and can be fixed by fastening screws 8.

[0059] like Figure 1As shown, the second copper busbar 2 is bent to form multiple layers of second conductors, each of which has an electrical connection point. The layers of second conductors are arranged sequentially in the height direction Z, with the top layer being the second upper conductor 21. The second upper conductor 21 is connected to the support member 5 above and can be fixed by fastening screws 8.

[0060] like Figure 1 As shown, in this embodiment, both the first conductor and the second conductor are two layers. The first conductor at the top layer is the first upper conductor 11, and the first conductor at the bottom layer is the first lower conductor 12; the second conductor at the top layer is the second upper conductor 21, and the second conductor at the bottom layer is the second lower conductor 22. In this case, the first copper busbar 1 can form two first conductors through two bends, and the second copper busbar 2 can form two second conductors through two bends. In other embodiments, the first conductor and the second conductor can also be set to other numbers of layers, such as three layers.

[0061] The PDU structure provided in this embodiment has multiple positive connection points on the positive copper busbar and multiple negative connection points on the negative copper busbar, enabling unified connection between different power modules and batteries, reducing the number of copper busbars required, and lowering assembly difficulty. Furthermore, the positive and negative copper busbars are bent to form different layers of conductors, facilitating processing. This adapts to the assembly height of batteries and different power modules while improving the utilization of vertical space, thus enhancing the structural compactness of the PDU. Additionally, connecting and supporting the first and second conductors of the top layer above the support member 5 allows for connection operations to be performed above the support member 5, facilitating assembly and providing sufficient assembly space for other layers of first and second conductors. This prevents the bottom layer's first and second conductors from impacting the bottom of the chassis 4, improving the ease of copper busbar assembly.

[0062] Regarding the arrangement and configuration of the first upper conductor 11 and the second upper conductor 21, as follows: Figure 2 and Figure 3 As shown, the first upper conductor 11 and the second upper conductor 21 are distributed on both sides of the support member 5 to make full use of the space in the first direction X inside the chassis 4, so as to facilitate the regional placement and electrical connection operation of the first upper conductor 11 and the second upper conductor 21.

[0063] It should be noted that in this embodiment, the height direction Z, the first direction X, and the second direction Y are perpendicular to each other. In other embodiments, these can also be three different directions with other angular relationships. In addition, in the first direction X, the two sides of the support member 5 in the first direction X are the first side and the second side, respectively. The first upper conductor 11 is located on the first side, and the second upper conductor 21 is located on the second side.

[0064] In addition, such as Figure 3As shown, both the first upper conductor 11 and the second upper conductor 21 are U-shaped structures, with both ends of the U-shaped structure connected to the top of the support member 5. The structure is simple and easy to process. Of course, in other embodiments, depending on the number and location of electrical connection points and the required number of electrical circuits, the first upper conductor 11 and the second upper conductor 21 can also be set as W-shaped or other irregular shapes.

[0065] Regarding the arrangement and configuration of the first lower conductor 12 and the second lower conductor 22, as follows: Figure 2 and Figure 3 As shown, in the first direction X, the first lower conductor 12 and the second lower conductor 22 are both located on the first side of the support member 5, which facilitates the connection of the first lower conductor 12 and the second lower conductor 22 to the connector corresponding to the same battery or power module.

[0066] like Figure 1 and Figure 3 As shown, the first copper busbar 1 also includes a first bent arm 13. In the first direction X, the support member 5 and the first lower conductor 12 are located on opposite sides of the first upper conductor 11, and the first upper conductor 11 is connected to the first lower conductor 12 via the first bent arm 13. Connecting the first lower conductor 12 to the end of the first upper conductor 11 away from the support member 5 allows the first lower conductor 12 to be closer to the side wall of the chassis 4 for electrical connection to the connector on that side wall. The first bent arm 13 is positioned at the middle of the U-shaped first upper conductor 11.

[0067] like Figure 1 and Figure 3 As shown, the second copper busbar 2 also includes a second bent arm 23. The second upper conductor 21 is connected to the second lower conductor 22 through the second bent arm 23. The second lower conductor 22 includes a front conductor 221 and a rear conductor 222. The front conductor 221 is located directly below the first upper conductor 11, and its two ends are respectively connected to the rear conductor 222 and the second bent arm 23. At this time, since part of the structure of the second lower conductor 22 is located directly below the first lower conductor 12, the first upper conductor 11 can be separated into layers, avoiding collision and interference between the second lower conductor 22 and the first upper conductor 11.

[0068] Specifically, such as Figure 3 As shown, one end of the second bent arm 23 can be connected to one end of the U-shaped second upper conductor 21. In addition, the front conductor 221 and the rear conductor 222 constitute an L-shaped conductive element. The front conductor 221 extends along the second direction Y, the rear conductor 222 extends along the first direction X, and the first lower conductor 12 extends along the first direction X and is arranged parallel to the rear conductor 222.

[0069] In the first copper busbar 1 and the second copper busbar 2, the first conductor and the second conductor have the same number of layers, and the first conductor and the second conductor with the same number of layers are arranged coplanarly from top to bottom. In this case, as follows... Figure 1 As shown, the first upper conductor 11 and the second upper conductor 21 are coplanarly arranged on plane s1, and the first lower conductor 12 and the second lower conductor 22 are coplanarly arranged on plane s2. This facilitates the connection of the first and second conductors on the same layer to the connectors corresponding to the positive and negative terminals of the same battery or power module. Furthermore, when additional electrical circuits are needed, the area of ​​the positive and negative copper busbars on the same plane can be increased to provide more electrical connection points.

[0070] On support member 5, such as Figure 2 and Figure 3 As shown, the connection points of the first upper conductor 11, the second upper conductor 21, and the support member 5 are alternately arranged in the second direction Y, specifically, they can be arranged collinearly parallel to the second direction Y. In this case, each pair of adjacent connection points can be paired as electrical connection points connecting the positive and negative terminals of the same battery or power module, such as... Figure 3 In the middle, from left to right, the support member 5 is connected to the first upper conductor 11, the second upper conductor 21, the first upper conductor 11, and the second upper conductor 21 in sequence, and can be used as positive connection point, negative connection point, positive connection point, and negative connection point in sequence. The positive and negative connection points on the left are used to electrically connect to the MCU, and the positive and negative connection points on the right are used to electrically connect to the BAT, which facilitates the allocation of electrical connection points on the first upper conductor 11 and the second upper conductor 21.

[0071] Additionally, the support member 5 includes multiple support blocks 51 arranged sequentially along the second direction Y. The support blocks 51 can be screwed to the chassis 4. Each support block 51 has two connection points, which are respectively connected to the first upper conductor 11 and the second upper conductor 21. In this case, one positive connection point and one negative connection point can be formed on one support block 51, allowing for corresponding connection to the same battery or power module. This improves the positional compatibility between the support block 51 and the electrically connected object. (Refer to...) Figure 3 In the first direction X, the connector 3 on the chassis 4 for connecting the MCU is collinear with a support block 51, and the connector 3 on the chassis 4 for connecting the BAT is collinear with another support block 51.

[0072] The first copper busbar 1 and the second copper busbar 2 are fixed to the support block 51 by fastening screws 8. In addition, since the first upper conductor 11 and the second upper conductor 21 are arranged on the same plane, the top surfaces of each support block 51 are also arranged on the same plane.

[0073] Among them, support block 51 is a plastic part, specifically a standard plastic part. The plastic part is made of PA66+25GF, which meets the requirements for V0 fire resistance, tensile strength, and thrust resistance of injection-molded nuts.

[0074] Of course, in other implementations, the support member 5 can also be configured in other ways, such as... Figure 6 and Figure 7 In another embodiment shown, the support member 5 includes three support blocks 51 arranged sequentially along the second direction Y. Each of the two end support blocks 51 has a connection point, which is respectively connected to one end of the first upper conductor 11 and one end of the second upper conductor 21. The middle support block 51 has two connection points, which are respectively connected to the other end of the first upper conductor 11 and the other end of the second upper conductor 21. Since the distance between the two end support blocks 51 and the middle support block 51 can be flexibly set, it is convenient to adapt to the distance between the two ends of the first upper conductor 11 and the two ends of the second upper conductor 21 in the second direction Y.

[0075] In addition, to prevent the first lower conductor 12 and the second lower conductor 22 from shaking, such as Figure 1 As shown, a first support column 14 is provided below the first lower conductor 12, and a second support column 24 is provided below the second lower conductor 22. The bottom ends of the first support column 14 and the second support column 24 are fixed to the chassis 4 to stably support the first lower conductor 12 and the second lower conductor 22.

[0076] like Figure 2 As shown, the chassis 4 also includes a fuse power distribution module 6, which integrates fuse and electrical interlock functions to improve equipment safety. The fuse power distribution module 6 is screwed to the chassis 4, specifically located on one side of the support member 5 in the second direction Y. A connector 3 is installed through the side wall of the chassis 4 for connecting a battery or power module. For example, connector 3 includes a high-voltage connector 31, one for electrically connecting to the BAT and the other for electrically connecting to the MCU. Additionally, connector 3 is electrically connected to the first copper busbar 1 or the second copper busbar 2, and also electrically connected to the fuse power distribution module 6. This connection can be achieved via a wiring harness, which can be connected to the fuse power distribution module 6 via OT terminals. The wiring harness can be connected to the blind-hole crimp studs of the first copper busbar 1 and the second copper busbar 2 via screws. Alternatively, connector 3 can extend into the chassis 4 and be screwed to the support member 5. Based on actual needs, the wiring harness includes power module wiring harness, DC high voltage wiring harness, AC high voltage wiring harness and other high voltage low current wiring harness, etc. The wiring harness is designed in the chassis 4 according to the principle of the shortest distance.

[0077] like Figure 8As shown, to allow the PDU structure to be assembled inside the on-board charging device and to achieve a fixed connection with other structures such as the charging platform 7 in the on-board charging device, a connecting edge 41 protrudes from the bottom of the outer side of the housing 4 for screw connection to the on-board charging device. Specifically, a connecting through hole can be provided on the connecting edge 41, through which the connecting edge 41 is screwed to the charging platform 7 of the on-board charging device. To ensure connection strength, the connecting edge 41 can be a ring structure, forming a circle around the housing 4.

[0078] It should be noted that the charging platform 7 includes an OBC module (On-Board Charger) and a DC / DC module. The size of the charging platform 7 will vary depending on the charging power of the on-board charger; for example, the charging platform 7 for a 3.3kW on-board charger will be smaller than that for a 6.6kW on-board charger. In this embodiment, by adding a connecting edge 41 as a separate connection structure between the chassis 4 and other devices, only different connecting edges 41 need to be fabricated according to the power rating during manufacturing. The other parts of the chassis 4 can be universal, resulting in good compatibility with different on-board chargers and reducing manufacturing difficulty and cost.

[0079] For details, please refer to [link / reference]. Figure 8 The size of the charging platform 7 varies, and the size of the connection through holes in the required PDU structure chassis 4 also varies. The connection through holes a on the outer ring of the connection edge 41 are adapted to... Figure 9 The 6.6kW on-board charging device shown has a connecting through hole B on the inner ring of the connecting edge 41, which is adapted to... Figure 10 The 3.3kW on-board charging device is shown. During the machining of the chassis 4, the chassis 4 is machined according to the maximum size mold opening principle. The resulting chassis 4 blank is adapted to a 6.6kW on-board charging device. The connecting edge 41 has an outer ring structure with machined connecting through holes a. If it is to be installed in a 3.3kW on-board charging device, the excess material of the outermost ring of the connecting edge 41 can be machined off, thus adapting it to the charging platform 7 in the 3.3kW on-board charging device. In this way, a single set of molds can be used to machine chassis 4 or chassis blanks adapted to both large and small power on-board charging devices. This allows for the processing of chassis 4 that can be compatible with PDU structures of different sizes of charging platforms 7, resulting in higher economic efficiency.

[0080] The PDU structure provided by this utility model can be applied to power supply components in fields such as vehicle power supplies, industrial power supplies, military enterprises, and medical power supplies. It has the following advantages: the positive and negative copper busbars can be bent to form multiple layers of conductors, improving the utilization of vertical space while meeting assembly and safety distance requirements. It is easy to process and can provide multiple positive and negative electrical connection points with just one positive and one negative copper busbar, enabling the connection of multiple points and multiple high-current loops. This reduces the number of copper busbars required, lowers assembly difficulty, and reduces costs while meeting functional requirements. The chassis 4 has compatibility, reducing the mold cost of chassis 4 and lowering the overall project cost.

[0081] In addition to the aforementioned copper busbar connector and PDU structure, this utility model also provides an electronic device, which includes a copper busbar connector for realizing electrical connections between electrical components in the electronic device, such as electrical connections between a power supply and other electrical devices.

[0082] Optionally, the electronic device can be an on-board charging device, which includes a PDU structure. Specifically, the PDU structure can be the PDU structure provided in any of the above embodiments, and the beneficial effects can be referred to the above embodiments accordingly.

[0083] The on-board charging device includes a charging platform 7, which integrates an OBC module and a DC / DC module. The chassis 4 is fixedly connected to the top of the charging platform 7, specifically by screws connecting the edge 41 to the charging platform 7.

[0084] It should be noted that when an element is referred to as "fixing" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as "connecting" another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, in the description of this utility model, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.

[0085] The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" 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.

[0086] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0087] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0088] The electronic device, PDU structure, and copper busbar connector provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A copper busbar connector, characterized in that, It includes a first copper busbar (1) and a second copper busbar (2), one of the first copper busbar (1) and the other of the second copper busbar (2) being a positive copper busbar and the other being a negative copper busbar; the first copper busbar (1) is bent to form multiple layers of first conductors in the height direction; the second copper busbar (2) is bent to form multiple layers of second conductors in the height direction, and each of the first conductors and each of the second conductors has an electrical connection point.

2. The copper busbar connector according to claim 1, characterized in that, It also includes an insulating support (5); the first conductor at the top layer of the first copper busbar (1) is the first upper conductor (11), and the second conductor at the top layer of the second copper busbar (2) is the second upper conductor (21). The first upper conductor (11) and the second upper conductor (21) are both connected above the support (5).

3. The copper busbar connector according to claim 2, characterized in that, In the first direction (X), the first upper conductor (11) and the second upper conductor (21) are distributed on both sides of the support (5).

4. The copper busbar connector according to claim 3, characterized in that, In the first direction (X), the first upper conductor (11) is located on the first side of the support (5), and the second upper conductor (21) is located on the second side of the support (5); The first conductor in the layer below the first upper conductor (11) is the first lower conductor (12), and the second conductor in the layer below the second upper conductor (21) is the second lower conductor (22). Both the first lower conductor (12) and the second lower conductor (22) are located on the first side.

5. The copper busbar connector according to claim 4, characterized in that, The first copper busbar (1) further includes a first bent arm (13). In the first direction (X), the support (5) and the first lower conductor (12) are located on both sides of the first upper conductor (11). The first upper conductor (11) is connected to the first lower conductor (12) through the first bent arm (13). And / or, The second copper busbar (2) also includes a second bent arm (23). The second upper conductor (21) is connected to the second lower conductor (22) through the second bent arm (23). The second lower conductor (22) includes a front conductor (221) and a rear conductor (222). The front conductor (221) is located directly below the first upper conductor (11). The two ends of the front conductor (221) are respectively connected to the rear conductor (222) and the second bent arm (23).

6. The copper busbar connector according to any one of claims 2 to 5, characterized in that, The connection points of the first upper conductor (11), the second upper conductor (21) and the support member (5) are alternately arranged in the second direction (Y).

7. The copper busbar connector according to any one of claims 2 to 5, characterized in that, The support member (5) includes a plurality of support blocks (51) arranged sequentially along the second direction (Y). Each support block (51) has two connection points, which are respectively connected to the first upper conductor (11) and the second upper conductor (21).

8. The copper busbar connector according to any one of claims 1 to 5, characterized in that, The first conductor and the second conductor have the same number of layers, and the first conductor and the second conductor with the same number of layers from top to bottom are arranged coplanarly.

9. A PDU structure, characterized in that, Includes a chassis and a copper busbar connector as described in any one of claims 1 to 8, wherein the copper busbar connector is disposed in the chassis (4), and a connecting edge (41) is provided on the bottom of the outer side of the chassis (4) for screw connection to the vehicle charging device.

10. An electronic device, characterized in that, Includes the copper busbar connector as described in any one of claims 1 to 8.