Circuit arrangement structure of high-voltage distribution box

Abstract

The utility model discloses a line arrangement structure of a high-voltage distribution box, which comprises a mounting plate, a connecting wall is arranged on the mounting plate, the surface of the mounting plate is divided into a group of connecting areas by the connecting wall, a limiting groove is arranged between the group of connecting areas, the limiting groove comprises a main section and a group of branch sections, a main connecting interface is formed at the extension end of the main section, and a plurality of branch connecting interfaces are formed at the extension end of the branch section. The extension end of the branch section is communicated with the connecting area and forms a switching interface, a connecting assembly is arranged in the limiting groove and comprises a main connecting piece, connecting pin headers and switching connecting pieces, each switching connecting piece is electrically connected with the main connecting piece through two connecting pin headers, the main connecting piece is connected with the main connecting interface in an inserted mode, and the main connecting piece is connected with the main connecting interface in an inserted mode. The switching connecting pieces are inserted into the switching interfaces one by one, and a group of connecting pin headers are arranged in the limiting grooves. According to the scheme, the connecting pin header is used for replacing a wire harness for electric connection, the connecting assembly is integrally assembled by utilizing the characteristic that the connecting pin header is hard in texture, automatic production is realized, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, in particular to a circuit arrangement structure of a high-voltage distribution box. Background Art

[0002] Electric vehicles, including pure electric vehicles, hybrid electric vehicles, and fuel cell electric vehicles, are typically powered by a power battery pack. To control the input and output current of the power battery pack, a power distribution box is typically required.

[0003] There are many wiring harnesses in the high-voltage distribution box, such as low-voltage control lines and high-voltage sampling lines. The production of the wiring harness includes multiple complicated processes such as cutting, crimping, and insulation protection. The reliability of the wiring harness production in the distribution box directly affects the normal operation of the BMS power battery pack total voltage, contactor diagnosis, and insulation withstand voltage judgment. Existing distribution boxes usually have corresponding limit slots to limit the layout direction of the wiring harness, as disclosed in announcement numbers CN 221467057 U and CN 219436582 U. This can fix the position of the wiring harness to ensure its stability during use. However, since the wiring harness is a soft structure, it is difficult to pick it up accurately, making it difficult to achieve automated and precise installation in the distribution box. Manual assembly is required, especially when facing different wiring structures. Consistency cannot be guaranteed and the assembly time is long. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a circuit arrangement structure for a high-voltage distribution box.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The circuit arrangement structure of the high-voltage distribution box includes an injection-molded mounting plate, on which a connecting wall integrally formed therewith is provided, wherein the connecting wall is vertically arranged and divides the surface of the mounting plate into a group of connection areas for connecting components, a group of the connection areas is provided with a limiting groove, the limiting groove includes a main section and a group of branch sections, a group of the branch sections are all connected to the main section, the extension end of the main section is formed with a total connection interface, the extension end of a group of the branch sections is respectively connected to a connection area, and the branch sections are connected to the main section. An adapter interface is formed at the end of the trunk section connected to the connection area, and a connecting assembly is provided in the limiting groove. The connecting assembly includes a main connector, a connecting pin and a adapter connector. The main connector matches the main connection interface, and the adapter connector matches the adapter interface. Each of the adapter connectors is electrically connected to the main connector through two connecting pins. The main connector is plugged into the main connection interface, and the adapter connectors are plugged into the adapter interface one by one. A group of connecting pins are all built into the limiting groove.

[0007] Preferably, the connecting pins are made of brass.

[0008] Preferably, a group of the connecting pins located in the trunk section are arranged in parallel with each other, and the two connecting pins located in the branch section are also arranged in parallel with each other.

[0009] Preferably, the connecting pins are arranged vertically, and the inner contour of the limiting groove matches the arrangement direction of a group of the connecting pins.

[0010] Preferably, the surface of the connecting pins is provided with an anti-oxidation layer.

[0011] Preferably, an insulating layer is provided on the outside of the connecting pins located in the limiting groove.

[0012] The beneficial effects of the present invention are mainly reflected in:

[0013] 1. Use connecting pins instead of wiring harnesses for electrical connection. The connecting pins are made of metal, which is hard and not easy to bend or tangle. It can keep its shape without deformation, thus simplifying the wiring layout in the distribution box.

[0014] 2. The metal material of the connecting pins makes it difficult for the middle section after the two ends are fixed to bend or warp. The rigidity of the connecting pins is used to form the connecting assembly into a whole for overall installation. When the main connector is plugged into the main connection interface and the adapter connector is plugged into the adapter interface, a group of connecting pins can be stably built into the limiting groove without the need for an additional fixed wire structure to fix the connecting pins. This further simplifies the structure in the installation board, optimizes the structure, and reduces costs.

[0015] 3. The limiting groove and the mounting plate are integrally injection molded, and the connecting components can also be pre-assembled as a whole. Then, the connecting components can be directly installed into the mounting plate as a whole to complete the assembly. This not only facilitates the robot to perform automated production and assembly, but also improves production efficiency and ensures consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the utility model is further described below with reference to the accompanying drawings:

[0017] Figure 1 : A schematic diagram of an embodiment of the present utility model;

[0018] Figure 2 : Schematic diagram of connecting pin headers in an embodiment of the present invention;

[0019] Figure 3 : Schematic diagram of the mounting plate in the embodiment of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by a person skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0021] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0022] like Figures 1 to 3As shown, the utility model discloses a circuit arrangement structure of a high-voltage distribution box, including a mounting plate 1 made of injection molding, wherein the mounting plate 1 is provided with a connecting wall 104 integrally formed therewith, the connecting wall 104 is vertically arranged and divides the surface of the mounting plate 1 into a group of connection areas 100 for connecting components, a group of the connection areas 100 is provided with a limiting groove 103, the limiting groove 103 includes a main section 1031 and a group of branch sections 1032, a group of the branch sections 1032 are all connected to the main section 1031, the extending end of the main section 1031 is formed with a total connection interface 101, and the extending ends of a group of the branch sections 1032 are respectively It is connected to a connection area 100, and an adapter interface 102 is formed at the end of the branch section 1032 connected to the connection area 100. A connection component is provided in the limiting groove 103, and the connection component includes a main connector, a connecting pin 2 and a transfer connector. The main connector matches the main connection interface 101, and the transfer connector matches the transfer interface 102. Each of the transfer connectors is electrically connected to the main connector through two connecting pins 2. The main connector is plugged into the main connection interface 101, and the transfer connectors are plugged into the transfer interface 102 one by one. A group of connecting pins 2 are all built into the limiting groove 103.

[0023] Preferably, the connecting pins 2 in this solution are made of brass, ensuring good electrical conductivity. They are preferably sized with a smaller cross-section, such as 0.5x0.5mm or 0.64x0.64mm, to replace the wiring harness. This solution uses connecting pins 2 instead of wiring harnesses for electrical connection. Made of a hard metal material, these pins 2 are less prone to folding and tangling, maintaining their shape and simplifying wiring layout within the distribution box.

[0024] At the same time, the metal material of the connecting pins 2 makes it difficult for the middle section after the two ends are fixed to bend or warp, and the rigidity of the connecting pins 2 is used to form the connecting assembly into a whole for overall installation. In this way, when the main connector 201 is plugged into the main connection interface 101 and the adapter connector 203 is plugged into the adapter interface 102, a group of connecting pins 2 can be stably built into the limiting groove 103 without the need for an additional fixed wire structure to fix the connecting pins 2, thereby further simplifying the structure in the mounting plate, optimizing the structure, and reducing costs.

[0025] Furthermore, a group of connecting pins 2 located within the main section 1031 are spaced apart and arranged in parallel, and two connecting pins 2 located within the branch section 1032 are also spaced apart and arranged in parallel. The connecting pins 2 are arranged vertically, and the inner contour of the limiting groove 103 matches the routing direction of the group of connecting pins 2, thereby optimizing the arrangement of the connecting pins 2 to the greatest extent possible, minimizing the distance between the main connection interface 101 and the adapter interface 102, and minimizing the number of bends. This saves the length of the connecting pins 2 while reducing the number of bends, thereby improving electrical conductivity and reducing manufacturing costs.

[0026] In order to ensure the stability of the connecting pins 2, an anti-oxidation layer is provided on the surface of the connecting pins 2. The anti-oxidation layer is made of tin or nickel. The surface of the connecting pins 2 is tin-plated or nickel-plated to ensure its chemical stability and improve corrosion resistance.

[0027] The connection area 100 in this solution is used to accommodate and connect various components within the distribution box. The main connection interface 101 and the adapter interface 102 can use any suitable interface components. Preferably, the main connection interface 101 and the adapter interface 102 use market standard components to improve their applicability. The main connection interface 101 can be configured with a corresponding number of pins according to the specific number of connection pins 2 to be connected.

[0028] The connecting pins 2 replace the wiring harness for electrical connection. The ends connecting to the main connector 201 and the adapter connector 203 are not provided with an insulating layer to ensure effective connection. However, the connecting pins 2 located within the retaining grooves 103 are provided with an insulating layer to ensure safe use. The insulating layer is preferably provided on the outside of the connecting pins 2 by extrusion or injection molding.

[0029] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0030] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. The circuit layout structure of the high-voltage distribution box is characterized by: The invention comprises an injection-molded mounting plate (1), wherein the mounting plate (1) is provided with a connecting wall (104) integrally formed therewith, wherein the connecting wall (104) is vertically arranged and divides the surface of the mounting plate (1) into a group of connecting areas (100) for connecting components, wherein a limiting groove (103) is provided between a group of the connecting areas (100), wherein the limiting groove (103) comprises a main section (1031) and a group of branch sections (1032), wherein a group of the branch sections (1032) are all connected to the main section (1031), wherein an extension end of the main section (1031) is formed with a general connection interface (101), wherein an extension end of a group of the branch sections (1032) is respectively connected to a connecting area (100), and wherein the branch sections (1032) are connected to the connecting area (100). The connected ends are formed with an adapter interface (102), and a connection component is arranged in the limiting groove (103), and the connection component includes a main connector (201), a connecting pin (202) and a transfer connector (203), the main connector (201) matches the main connection interface (101), the transfer connector (203) matches the transfer interface (102), and each of the transfer connectors (203) is electrically connected to the main connector (201) through two connecting pins (202), the main connector (201) is plugged into the main connection interface (101), a group of the transfer connectors (203) is plugged into the transfer interface (102) one by one, and a group of the connecting pins (202) are all built into the limiting groove (103).

2. The circuit arrangement structure of the high-voltage distribution box according to claim 1 is characterized in that: The connecting pins (202) are made of brass.

3. The circuit arrangement structure of the high-voltage distribution box according to claim 2, characterized in that: A group of the connecting pins (202) located in the trunk section (1031) are arranged in parallel at intervals, and two connecting pins (202) located in the branch section (1032) are also arranged in parallel at intervals.

4. The circuit arrangement structure of the high-voltage distribution box according to claim 3 is characterized in that: The connecting pins (202) are arranged vertically, and the inner contour of the limiting groove (103) matches the arrangement direction of a group of the connecting pins (202).

5. The circuit arrangement structure of the high-voltage distribution box according to claim 4 is characterized in that: The surface of the connecting pins (202) is provided with an anti-oxidation layer.

6. The circuit arrangement structure of the high-voltage distribution box according to claim 5, characterized in that: An insulating layer is provided on the outside of the connecting pins (202) located in the limiting groove (103).

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