Whole vehicle wire harness medium-voltage connection structure and vehicle

Abstract

The utility model provides a whole vehicle wire harness medium-voltage connection structure and a vehicle. The whole vehicle wire harness medium-voltage connection structure comprises a plurality of FFC wire harnesses and a medium-voltage integration module. Each FFC wire harness is provided with at least two conductive cores, a plurality of conduction circuits are arranged in the medium-voltage integrated module, each conduction circuit is provided with at least two power connection ends, and each power connection end is used for being correspondingly connected with one conductive core; wherein the medium-voltage integrated module correspondingly forms a plurality of medium-voltage loops among the FFC wire harnesses based on the conduction circuits. According to the medium-voltage connection structure of the whole vehicle wire harness provided by the utility model, only the conductive cores of the FFC wire harnesses need to be correspondingly connected and conducted with the power connection ends on the medium-voltage integrated module, and then a medium-voltage loop can be formed among the FFC wire harnesses by utilizing the conduction loop in the medium-voltage integrated module; therefore, a plurality of medium-voltage loops of the whole-vehicle wire harness can be gathered in the medium-voltage integrated module, the compactness and orderliness of the medium-voltage connection structure can be improved, and the light weight of the whole-vehicle wire harness is promoted.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle wiring harnesses, and particularly relates to a medium-voltage connection structure in a vehicle wiring harness and a vehicle. Background Art

[0002] The vehicle wiring harness is the network main body of the vehicle electrical circuit system. A wiring harness refers to a component that forms a connection circuit by plastic-molding an insulator outside after crimping a connection terminal to a wire and cable and bundling the wire and cable with a wiring harness. With the increase in vehicle functions, there are more and more electrical components and wires, so the wiring harness becomes thicker and heavier, which not only makes the layout difficult, but also is not conducive to the vehicle lightweight index; in addition, since there are medium-voltage designs in many circuits in the vehicle wiring harness, that is, multiple wire circuits are medium-voltage connected at the same node to achieve the interconnection of multiple circuits. The current medium-voltage method mainly conducts welding or crimping on the connection terminals on the wire and cable. This not only further increases the space occupied by the wiring harness and the overall weight, but also the number of medium-voltage points is large and scattered, affecting the lightweight index and making the layout of the vehicle wiring harness lack organization, and improvement is urgently needed. Summary of the Utility Model

[0003] An embodiment of the utility model provides a medium-voltage connection structure in a vehicle wiring harness, aiming to improve the compactness and organization of the medium-voltage connection structure of the wiring harness and promote the lightweight of the vehicle wiring harness.

[0004] The technical solution adopted by the utility model to achieve the above object is: In the first aspect, a medium-voltage connection structure in a vehicle wiring harness is provided, which includes multiple FFC (Flexible Flat Cable, flexible flat cable, with the characteristics of thin thickness, simple connection, and convenient disassembly) wiring harnesses and a medium-voltage integration module; each FFC wiring harness has at least two conductive cores, and multiple conduction circuits are arranged inside the medium-voltage integration module, and each conduction circuit has at least three power connection terminals, and each power connection terminal is respectively used to correspondingly connect one of the conductive cores; wherein, the medium-voltage integration module correspondingly forms multiple medium-voltage circuits between each FFC wiring harness based on each conduction circuit.

[0005] In combination with the first aspect, in a possible implementation manner, the medium-voltage integration module is a PCB (Printed Circuit Board, printed circuit board), and each conduction circuit is printed on the PCB.

[0006] In some embodiments, a plurality of welding pads are respectively and spacedly distributed on the adjacent and / or opposite side edges of the PCB, and each welding pad is respectively conducted with one of the conduction circuits to form a power connection terminal, and the conductive cores of each FFC wiring harness are respectively welded and conducted with the welding pads located on the same side of the PCB.

[0007] Exemplarily, the connection part between the conductive core and the welding pad is coated with sealant, and an insulating protective film is provided on the PCB board.

[0008] Combined with the first aspect, in a possible implementation, the medium-voltage integration module includes:

[0009] A power connection plug, in which at least three first plugging parts are distributed in an array, and each first plugging part is respectively used as one of the power connection ends and is correspondingly connected to each conductive core;

[0010] An end cover, which is detachably connected to the power connection plug, and a plurality of second plugging parts are distributed in an array in the end cover, and each second plugging part corresponds to and is plugged and conducted with each first plugging part;

[0011] A plurality of short-circuit parts are arranged on the end cover, and each short-circuit part is respectively used to connect and conduct at least three second plugging parts to form a conduction circuit.

[0012] In some embodiments, one of the first plugging part and the second plugging part is a conductive pin, and the other is a conductive sleeve, and the conductive pin is plugged and conducted with the conductive sleeve.

[0013] Exemplarily, the first plugging part is a conductive sleeve, and a conductive terminal is provided at the end of the conductive core, and the conductive terminal is plugged and conducted with the conductive sleeve.

[0014] For example, the end cover is provided with a protective cavity, the second plugging part and the short-circuit part are both arranged in the protective cavity, and one end of the power connection plug is plugged into the protective cavity and is clamped and fixed with the cavity wall of the protective cavity.

[0015] In some embodiments, the side wall of the power connection plug is provided with a clamping rib, the cavity wall of the protective cavity is provided with a sliding groove, and an anti-retreat rib is arranged in the sliding groove, and the clamping rib slides through the sliding groove and is clamped and matched with the anti-retreat rib.

[0016] The beneficial effect of the medium-voltage connection structure of the vehicle wiring harness provided by the present invention is that: compared with the prior art, the medium-voltage connection structure of the vehicle wiring harness of the present invention uses an FFC wiring harness to replace the conventional round-core copper wire, which is beneficial to saving the space of the vehicle wiring harness, facilitating layout, and promoting the lightweight of the vehicle wiring harness; only by correspondingly connecting and conducting the conductive cores of the FFC wiring harness with each power connection end on the medium-voltage integration module, a medium-voltage circuit can be formed between each FFC wiring harness by using the conduction loop inside the medium-voltage integration module. Therefore, multiple medium-voltage circuits of the vehicle wiring harness can be concentrated in the medium-voltage integration module, which can not only improve the compactness of the medium-voltage connection structure, reduce the occupied space and weight of the vehicle wiring harness, thereby promoting the lightweight of the vehicle wiring harness, but also improve the layout rationality and simplicity of the vehicle wiring harness.

[0017] In the second aspect, the embodiment of the present invention further provides a vehicle, including the above-mentioned medium-voltage connection structure of the vehicle wiring harness.

[0018] The beneficial effects of the vehicle provided by the present utility model are as follows: Compared with the prior art, the vehicle of the present utility model adopts the above-mentioned medium-voltage connection structure in the vehicle wiring harness, and uses FFC wiring harness to replace the conventional round-core copper wire, which is beneficial to saving the space of the vehicle wiring harness, facilitating layout, and promoting the lightweight of the vehicle wiring harness; only by correspondingly connecting and conducting the conductive cores of the FFC wiring harness to the respective power connection terminals on the medium-voltage integration module, a medium-voltage circuit can be formed between each FFC wiring harness by using the conduction circuit inside the medium-voltage integration module. Thus, multiple medium-voltage circuits of the vehicle wiring harness can be converged on the medium-voltage integration module, which can not only improve the compactness of the medium-voltage connection structure, reduce the occupied space and weight of the vehicle wiring harness, thereby promoting the lightweight of the vehicle wiring harness, but also improve the rationality and simplicity of the layout of the vehicle wiring harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a front view structural schematic diagram of the medium-voltage connection structure of the vehicle wiring harness provided by an embodiment of the present utility model;

[0020] Figure 2 FIG. is a side view structural schematic diagram of the medium-voltage connection structure of the vehicle wiring harness provided by an embodiment of the present utility model;

[0021] Figure 3 FIG. is an exploded structural schematic diagram of the medium-voltage connection structure of the vehicle wiring harness provided by another embodiment of the present utility model;

[0022] Figure 4 FIG. is a front view structural schematic diagram of the end cover adopted by an embodiment of the present utility model.

[0023] In the figure: 10, FFC wiring harness; 100, conductive core; 101, conductive terminal; 20, medium-voltage integration module; 200, conduction circuit; 201, welding pad; 202, sealant; 203, insulating protective film; 21, power connection plug; 211, conductive sleeve; 212, rib; 22, end cover; 221, conductive pin; 222, protective cavity; 2221, chute; 2222, anti-retreat rib; 23, short-circuit part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] It should be noted that when an element is referred to as being "disposed on" or "connected to" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. used in this application are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application. The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or several of such features. In the description of this application, the meaning of "a plurality of" and "several" is two or more, unless otherwise specifically and clearly defined.

[0026] Please refer to Figures 1 to 4 , and now the middle - voltage connection structure in the vehicle - integrated wire harness provided by the present utility model will be described. The middle - voltage connection structure in the vehicle - integrated wire harness includes a plurality of FFC wire harnesses 10 and a middle - voltage integration module 20; each FFC wire harness 10 has at least two conductive cores 100, and a plurality of conduction circuits 200 are provided inside the middle - voltage integration module 20. Each conduction circuit 200 has at least three power - receiving terminals, and each power - receiving terminal is respectively used to correspondingly connect one of the conductive cores 100; wherein, based on each conduction circuit 200, the middle - voltage integration module 20 correspondingly forms a plurality of middle - voltage circuits between each FFC wire harness 10.

[0027] It should be noted that in this embodiment, each FFC wire harness 10 has at least two conductive cores 100. The conductive core 100 can be a copper wire bundle. Compared with the wire harness structure formed by wrapping an insulating skin around a conventional copper wire, the FFC wire harness 10 has a flattened structure and has the advantage of saving space.

[0028] It should be understood that a middle - voltage circuit refers to a circuit formed by middle - voltage connecting one or more circuits on an existing circuit, thereby making the middle - voltage point (the position point where a conventional middle - voltage connection structure is electrically connected by crimping or welding) form a structure in which at least three wires are electrically connected to each other. In this embodiment, each conduction circuit 200 has at least three power - receiving terminals, so that at least three conductive cores 100 can be electrically connected to each other through the same conduction circuit 200 to form a middle - voltage circuit.

[0029] For the layout design of the vehicle's entire wiring harness, the various conductive cores 100 arranged along the same path are integrated into the same FFC wiring harness 10. For two or more conductive cores 100 that need to be connected to form a medium-voltage circuit, it is only necessary to connect each conductive core 100 to each power connection terminal of the conduction circuit 200 corresponding to this medium-voltage circuit. The specific connection method can be welding conduction between the conductive core 100 and the power connection terminal, or crimping or screwing conduction between the conductive core 100 and the grounding terminal through a terminal. Here, the welding conduction method is preferably adopted, which can not only save space but also ensure the conduction reliability.

[0030] In this embodiment, multiple conduction circuits 200 are integrally arranged inside the medium-voltage integration module 20, so that multiple medium-voltage circuits near the same position can be integrated into the medium-voltage integration module 20. Specifically, each FFC wiring harness 10 is respectively connected to each power connection terminal on the medium-voltage integration module 20, and each conduction circuit 200 is correspondingly conducted with the corresponding conductive core 100, thereby enabling the integrated design of the medium-voltage circuit, which is beneficial to improving the compactness of the medium-voltage connection structure and reducing the space occupied by the vehicle's entire wiring harness layout.

[0031] Compared with the prior art, the medium-voltage connection structure of the vehicle's entire wiring harness provided in this embodiment uses the FFC wiring harness 10 to replace the conventional round-core copper wire, which is beneficial to saving the space of the vehicle's entire wiring harness, facilitating layout, and promoting the lightweight of the vehicle's entire wiring harness; only by correspondingly connecting and conducting the conductive core 100 of the FFC wiring harness 10 to each power connection terminal on the medium-voltage integration module 20, a medium-voltage circuit can be formed between each FFC wiring harness 10 by using the conduction circuit inside the medium-voltage integration module 20. Thus, multiple medium-voltage circuits of the vehicle's entire wiring harness can be concentrated in the medium-voltage integration module 20, which can not only improve the compactness of the medium-voltage connection structure, reduce the occupied space and weight of the vehicle's entire wiring harness, thereby promoting the lightweight of the vehicle's entire wiring harness, but also improve the rationality and simplicity of the vehicle's entire wiring harness layout.

[0032] As a specific implementation manner of the above medium-voltage integration module 20, please refer to Figure 1 and Figure 2 , the medium-voltage integration module 20 is a PCB board, and each conduction circuit 200 is printed on the PCB board. By directly printing the corresponding circuit patterns on the PCB board according to the design requirements of the medium-voltage circuit to form each conduction circuit 200, it is not only more compact in structure, small in size and light in weight, which is beneficial to optimizing the space layout and reducing weight, but also the conduction circuit 200 has high reliability, can reduce the risk of electrical connection failure, and thus improve the stability of the medium-voltage circuit.

[0033] Specifically, as shown in Figure 1As shown in the figure, a plurality of welding pads 201 are respectively and spacedly distributed on the adjacent and / or opposite side edges of the PCB board. Each welding pad 201 is respectively connected to one of the conduction circuits 200 to form an electrical connection terminal. The conductive cores 100 of each FFC wire harness 10 are respectively welded and conducted with the welding pads 201 located on the same side of the PCB board.

[0034] Specifically, this PCB board can be a rectangular board, and a row of a plurality of terminal pads are respectively arranged on its four side edges to correspondingly connect one FFC wire harness 10. Thus, the integrated connection of four FFC wire harnesses 10 can be realized. Of course, if the number of FFC wire harnesses 10 at the same position is more, then the PCB board can also be set as a hexagonal, octagonal or other polygonal structure. Thus, each side edge position of the PCB board can correspondingly connect one FFC wire harness 10 to avoid mutual interference between the FFC wire harnesses 10. Of course, if the number of FFC wire harnesses 10 is less than four, only the welding pads 201 need to be arranged on two or three side edges of the rectangular PCB board.

[0035] By setting the welding pads 201, the conductive core 100 can be directly lapped on the corresponding welding pad 201 for welding and fixing. The connection method is simple and stable, which can not only realize the mechanical connection between the FFC wire harness 10 and the PCB board, but also ensure the conduction reliability between the conductive core 100 and the conduction circuit 200.

[0036] It should be noted that referring to Figure 2 , in some embodiments, a sealing glue 202 is coated on the connection part between the conductive core 100 and the welding pad 201, and an insulating protective film 203 is provided on the PCB board. Here, the sealing glue 202 can be a waterproof and insulating sealing glue 202, and the above insulating protective film 203 can be an insulating tape wound and adhered to the surface of the PCB board, or a plastic sealing film for plastic packaging of the PCB. After the conductive core 100 and the welding pad 201 are welded and fixed, the welding position is point-coated with the sealing glue 202 for insulating and waterproof protection, and at the same time, the whole PCB board is coated with the insulating protective film 203, so as to avoid the problem of electric leakage and water contact affecting the stability of the medium-voltage circuit.

[0037] As another specific implementation manner of the above medium-voltage integrated module 20, please refer to Figure 3 and Figure 4, the medium-voltage integrated module 20 includes a power connection plug 21, an end cover 22, and a plurality of short-circuiting parts 23; among them, at least three first plug-in parts are arranged in the power connection plug 21 in an array, and each first plug-in part serves as one of the power connection ends and is correspondingly connected to each conductive core 100; the end cover 22 is detachably connected to the power connection plug 21, and a plurality of second plug-in parts are arranged in the end cover 22 in an array, and each second plug-in part corresponds to and is plugged and conducted with each first plug-in part; each short-circuiting part 23 is arranged on the end cover 22, and each short-circuiting part 23 is respectively used to connect and conduct at least three second plug-in parts to form a conduction circuit 200.

[0038] Inside the end cover 22, the short-circuiting part 23 is used as a connection bridge for three or more second plug-in parts. Specifically, it can be a conductive copper pad embedded inside the end cover 22. The short-circuiting part 23 correspondingly connects and conducts the corresponding second plug-in parts according to the design requirements of the medium-voltage circuit, such as Figure 4 shown. If the design requires that the three conductive cores 100 are conducted with each other, an L-shaped connection bridge is used as the short-circuiting part 23 to connect the three second plug-in parts. If the design requires that the four conductive cores 100 are conducted with each other, a rectangular frame structure connection bridge is used as the short-circuiting part 23 to connect the four adjacent second plug-in parts, and so on. Considering the connection with the FFC wire harness 10, each second plug-in part is arranged in an array, and each FFC wire harness 10 can be connected to one row of second plug-in parts, thereby improving the rationality of the wire harness layout and the compactness of the medium-voltage connection structure.

[0039] In some possible implementation manners, such as Figure 3 shown, one of the first plug-in part and the second plug-in part is a conductive pin 221, and the other is a conductive sleeve 211, and the conductive pin 221 is plugged and conducted with the conductive sleeve 211. The connection and conduction are realized by the plugging and matching of the conductive pin 221 and the conductive sleeve 211. Combined with the detachable connection manner of the end cover 22 and the power connection plug 21, the insertion is simple and convenient, which helps to improve the wiring efficiency of the vehicle wire harness and is also convenient for later disassembly and maintenance of the wire harness.

[0040] Optionally, such as Figure 3 and Figure 4As shown, the first plug-in part in this embodiment is a conductive sleeve 211, and a conductive terminal 101 is provided at the end of the conductive core 100, and the conductive terminal 101 is plugged and connected with the conductive sleeve 211. The body of the power plug 21 is an insulator, and a through hole is provided inside. The first plug-in part uses a copper tube as the conductive sleeve 211 and is embedded in the through hole. The structure of the power plug 21 is compact and small. When the end cover 22 is installed on the power plug 21, each conductive pin 221 is correspondingly inserted into the conductive sleeve 211 to achieve conduction connection. At the same time, each conductive core 100 of the FFC harness 10 can be inserted into the conductive sleeve 211 at the end of the conductive sleeve 211 away from the end cover 22 after crimping the conductive terminal 101 to achieve connection and conduction, thereby facilitating the connection between the FFC harness 10 and the power plug 21 and improving the compactness of the connection structure. Of course, considering the plug-in reliability of the conductive terminal 101 and the conductive sleeve 211, to prevent the conductive terminal 101 from falling off from the conductive sleeve 211 and affecting the stability of the medium voltage circuit, the conductive terminal 101 and the conductive sleeve 211 are fitted with an interference fit, and after the plug-in is completed, a waterproof sealant 202 is applied to the plug-in position to improve the connection reliability and provide waterproof protection.

[0041] Please note that, see Figure 3 The end cover 22 is provided with a protective cavity 222, the second plug part and the short-circuit part 23 are both arranged in the protective cavity 222, and one end of the power plug 21 is plugged into the protective cavity 222 and fixed by the cavity wall of the protective cavity 222. After the end cover 22 and the power plug 21 are connected, the first plug part and the second plug part can be in the protective cavity 222, so as to avoid the exposed live parts and affect the circuit power supply stability. On this basis, the connection stability of the end cover 22 can be improved by using the clamping structure between the power plug 21 and the cavity wall of the protective cavity 222, so as to avoid the end cover 22 falling off and causing the medium voltage circuit to be powered off.

[0042] like Figure 3 As shown, the side wall of the power plug 21 is provided with a clamping rib 212, the cavity wall of the protective cavity 222 is provided with a slide groove 2221, and a stop rib 2222 is provided in the slide groove 2221. The clamping rib 212 is slidably penetrated in the slide groove 2221 and is engaged with the stop rib 2222. The sliding engagement between the clamping rib 212 and the slide groove 2221 provides guidance for the plugging process of the end cover 22 and the power plug 21, thereby ensuring that each first plug part is aligned with each second plug part to complete plugging and conduction. After the first plug part and the second plug part are plugged in place, the clamping rib 212 and the stop rib 2222 form a snap fit, thereby preventing the end cover 22 from falling off and improving the connection stability.

[0043] Based on the same inventive concept, combined Figures 1 to 4 It is understood that an embodiment of the present application also provides a vehicle, including the above-mentioned medium-voltage connection structure of the vehicle wiring harness.

[0044] Compared with the prior art, the vehicle provided in this embodiment adopts the above-mentioned medium-voltage connection structure in the vehicle harness, and uses the FFC harness 10 to replace the conventional round-core copper wire, which is beneficial to saving the space of the vehicle harness, facilitating layout, and promoting the lightweight of the vehicle harness; only by correspondingly connecting and conducting the conductive core 100 of the FFC harness 10 with each power connection terminal on the medium-voltage integration module 20, a medium-voltage circuit can be formed between each FFC harness 10 by using the conduction loop inside the medium-voltage integration module 20. Thus, multiple medium-voltage circuits of the vehicle harness can be gathered in the medium-voltage integration module 20, which can not only improve the compactness of the medium-voltage connection structure, reduce the occupied space and weight of the vehicle harness, thereby promoting the lightweight of the vehicle harness, but also improve the rationality and simplicity of the layout of the vehicle harness.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The medium-voltage connection structure of the vehicle wiring harness is characterized by: The invention comprises a plurality of FFC harnesses (10) and a medium-voltage integrated module (20); each of the FFC harnesses (10) has at least two conductive cores (100); a plurality of conduction circuits (200) are arranged inside the medium-voltage integrated module (20); each of the conduction circuits (200) has at least three power connection terminals, each of the power connection terminals being used to connect to one of the conductive cores (100); wherein the medium-voltage integrated module (20) forms a plurality of medium-voltage loops between the FFC harnesses (10) based on each of the conduction circuits (200).

2. The medium-voltage connection structure of the vehicle wiring harness according to claim 1, characterized in that: The medium voltage integrated module (20) is a PCB board, and each of the conducting circuits (200) is printed on the PCB board.

3. The medium-voltage connection structure of the vehicle wiring harness according to claim 2, characterized in that: A plurality of power connection pads (201) are spaced apart on adjacent and / or opposite side edges of the PCB board, each of the power connection pads (201) is respectively connected to one of the conduction circuits (200) to form the power connection end, and the conductive core (100) of each of the FFC harnesses (10) is respectively connected to each of the power connection pads (201) located on the same side of the PCB board by welding.

4. The medium-voltage connection structure of the vehicle wiring harness according to claim 2, characterized in that: The connection portion between the conductive core (100) and the electrical connection pad (201) is coated with a sealant (202), and an insulating protective film (203) is provided on the PCB board.

5. The medium-voltage connection structure of the vehicle wiring harness according to claim 1, characterized in that: The medium voltage integrated module (20) comprises: An electrical connection plug (21), wherein at least three first electrical connection parts are arranged in an array in the electrical connection plug (21), and each of the first electrical connection parts serves as one of the electrical connection ends and is correspondingly connected to each of the conductive cores (100); An end cover (22) is detachably connected to the power plug (21), wherein a plurality of second power plug parts are arranged in an array in the end cover (22), and each of the second power plug parts corresponds to each of the first power plug parts one by one and is plugged in and connected; A plurality of short-circuit parts (23) are provided on the end cover (22), and each of the short-circuit parts (23) is used to connect and conduct at least three of the second plug-in parts to form the conduction circuit (200).

6. The medium-voltage connection structure of the vehicle wiring harness according to claim 5, characterized in that: One of the first plug-in part and the second plug-in part is a conductive plug pin (221), and the other is a conductive sleeve (211), and the conductive plug pin (221) and the conductive sleeve (211) are plugged and connected.

7. The medium-voltage connection structure of the vehicle wiring harness according to claim 6, characterized in that: The first plug-in portion is a conductive sleeve (211), and a conductive terminal (101) is provided at the end of the conductive core (100), and the conductive terminal (101) is plugged and connected with the conductive sleeve (211).

8. The medium-voltage connection structure of the vehicle wiring harness according to claim 5, characterized in that: The end cover (22) is provided with a protective cavity (222), the second plug-in portion and the short-circuit portion (23) are both arranged in the protective cavity (222), and one end of the power connection plug (21) is plugged into the protective cavity (222) and is fixedly connected to the cavity wall of the protective cavity (222).

9. The medium-voltage connection structure of the vehicle wiring harness according to claim 8, characterized in that: The side wall of the electrical plug (21) is provided with a clamping rib (212), the cavity wall of the protective cavity (222) is provided with a sliding groove (2221), a stop rib (2222) is provided in the sliding groove (2221), and the clamping rib (212) is slidably arranged in the sliding groove (2221) and is clamped and matched with the stop rib (2222).

10. A vehicle, characterized in that It comprises the medium-voltage connection structure of the vehicle wiring harness as described in any one of claims 1 to 9.

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