Low-voltage electrical wiring harness assembly of pure electric light truck

By introducing the combination of the wiring harness backbone and the wiring harness termination plug-in in the low-voltage electrical wiring harness design of new energy vehicles, the wiring harness branches are simplified and integrated structure and snap fixation are adopted, which solves the problems of high complexity and poor versatility of the wiring harness design, and improves the efficiency of the wiring harness design and the reliability of the electrical system are improved.

CN120327409APending Publication Date: 2025-07-18ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Patent Information

Application Number
CN202510667172.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

In the prior art, the low-voltage electrical wiring harness design of new energy vehicles lacks versatility, resulting in the need of tailor-made wiring harness design of each vehicle model, which increases the design and production efficiency, increases the complexity of wiring harness, and creates a lot of work for designers.

Method used

The design is adopted to combine the wiring harness trunk and the wiring harness termination. The wiring harness branches are simplified to be fixed to the wiring harness trunk. The components terminations are arranged on electrical components and are connected to the wiring harness trunk through the wiring harness connector. The wiring harness connector and the electrical components are fixed by snaps or sheet metal cards. The components terminations and electrical components are integrated structures, and are injection molded to improve vibration resistance.

Benefits of technology

It reduces the complexity of the wiring harness design, improves the universality of the wiring harness and the reliability of the electrical system, reduces the workload of designers, shortens the development cycle, and meets the matching needs of different models through a first-line multi-purpose design.

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Abstract

The invention provides a pure-electric light truck low-voltage electrical wiring harness assembly which comprises a wiring harness main body, wiring harness end connectors and part end connectors, a plurality of wiring harness end connectors are arranged in the extension direction of the wiring harness main body, and the part end connectors are used for being arranged on electrical parts of a vehicle. Each wire harness end connector is connected with each part end connector through a wire harness connecting piece; one end of the wire harness connecting piece is connected with the part end connector in an inserted mode through the insertion port, and the other end of the wire harness connecting piece is connected with the wire harness end connector in an inserted mode through the insertion port. The workload of wire harness designers can be reduced, the universality of the wire harness is improved, the development period is shortened, and the reliability of an electrical system is improved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle wiring harness design, and particularly relates to a low-voltage electrical wiring harness assembly for pure electric light trucks. Background Art

[0002] The design of vehicle electrical low-voltage wiring harnesses is an important part of the vehicle electrical system, which is responsible for transmitting power, signals, and data to various electronic control units and devices of the vehicle.

[0003] With the booming development of the new energy vehicle industry, new energy vehicles show a trend of rapid renewal, which brings new challenges and requirements to the design of vehicle low-voltage electrical wiring harnesses. At present, the research and development mode of the vehicle low-voltage electrical wiring harness is dedicated to a specific vehicle, with poor versatility. The wiring harness design for each vehicle model is different, and it requires wiring harness designers to customize it for a specific vehicle model, resulting in reduced design and production efficiency and extended cycle. As Figure 1 shown, the existing low-voltage electrical wiring harness assembly includes a wiring harness main trunk 11 and a plurality of wiring harness branches 12 connected to the wiring harness main trunk. With the increase in the electrical functions of new energy vehicles, more lines are required to connect various electrical components such as electronic control units and sensors, making the vehicle low-voltage wiring harness more and more complex, and the number of wiring harness branches 12 is also increasing. When considering the connection with electrical components, wiring harness designers also have to take into account the routing and fixation of the wiring harness branches, increasing the workload of wiring harness designers.

[0004] Therefore, how to design a low-voltage electrical wiring harness assembly for pure electric light trucks to reduce the workload of wiring harness designers and improve the versatility of the wiring harness has become an urgent technical problem to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a low-voltage electrical wiring harness assembly for pure electric light trucks to solve the above technical problems in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A low-voltage electrical wiring harness assembly for pure electric light trucks, which includes a wiring harness main trunk, wiring harness terminal connectors, and component terminal connectors. A plurality of the wiring harness terminal connectors are arranged in the extending direction of the wiring harness main trunk. The component terminal connectors are used to be arranged on various electrical components of the vehicle, and each of the wiring harness terminal connectors is connected to each of the component terminal connectors through a wiring harness connecting member; one end of the wiring harness connecting member is inserted into the component terminal connector through an insertion port, and the other end of the wiring harness connecting member is inserted into the wiring harness terminal connector through an insertion port.

[0008] Preferably, the component terminal connector and the electrical component are of an integral structure.

[0009] Preferably, an integrated structure is formed by injection molding between the component terminal plug and the electrical component.

[0010] Preferably, the wire harness terminal plug is located inside the longitudinal beam of the vehicle frame.

[0011] Preferably, the wire harness connecting piece is connected to the mounting bracket of the electrical component through a buckle.

[0012] Preferably, the number of the buckles is two or more.

[0013] Preferably, the wire harness connecting piece is connected to the mounting bracket of the electrical component through a sheet metal clip.

[0014] Preferably, the number of the sheet metal clips is two or more.

[0015] The beneficial effects of the present invention are as follows:

[0016] For the low-voltage electrical wire harness assembly of the pure electric light truck of the present invention, the wire harness main trunk of the existing vehicle low-voltage electrical wire harness is retained, the wire harness branch is simplified to a wire harness terminal plug fixed on the wire harness main trunk, the component terminal plug is arranged on the electrical component, and is docked with the wire harness plug on the wire harness main trunk through the wire harness connecting piece. Compared with the prior art, the vehicle wire harness removes the wire harness branch and only sets the wire harness terminal plug at the wire harness main trunk, reducing the complexity of the vehicle wire harness. Moreover, the routing and fixing methods of each wire harness connecting piece can be determined by each wire harness installation group, so that the workload of wire harness designers can be effectively reduced. At the same time, wire harness designers can meet the matching requirements of different vehicle models by increasing or decreasing the number of wire harness terminal plugs used, achieving the purpose of multi-purpose use of one wire and emergency wire outlet, thereby improving the versatility of the wire harness. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments, and will further describe the specific embodiments of the present invention in detail in conjunction with the drawings, where

[0018] Figure 1 is a schematic diagram of the existing low-voltage electrical wire harness assembly;

[0019] Figure 2 is a schematic diagram of the low-voltage electrical wire harness assembly of the pure electric light truck provided by the embodiment of the present invention when in use.

[0020] Markings in the drawings:

[0021] 11. Wire harness main trunk, 12. Wire harness branch;

[0022] 21. Wire harness main trunk, 22. Wire harness terminal plug, 23. Component terminal plug,

[0023] 24. Wiring harness connector; 31. Steering system, 32. Left and right speakers,

[0024] 33. Anti-lock braking module, 34. Cooling system, 35. Air conditioning system,

[0025] 36. Thermal management system. Detailed implementation manners

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present invention.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as a limitation to the present invention and its application or use.

[0028] Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification.

[0029] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0030] As Figure 2 shown, an embodiment of the present invention provides a pure electric light truck low-voltage electrical wiring harness assembly, which includes a wiring harness main body 21, a wiring harness terminal plug 22, and a component terminal plug 23. A plurality of the wiring harness terminal plugs 22 are arranged in the extending direction of the wiring harness main body 21. The component terminal plug 23 is used to be arranged on each electrical component of the vehicle. Each of the wiring harness terminal plugs 22 is respectively connected to each of the component terminal plugs through a wiring harness connector 24. One end of the wiring harness connector 24 is plugged into the component terminal plug 23 through a plug interface, and the other end of the wiring harness connector 24 is plugged into the wiring harness terminal plug 22 through a plug interface.

[0031] The low-voltage electrical harness assembly of the pure electric light truck provided by the embodiment of the present invention retains the harness main trunk of the existing vehicle low-voltage electrical harness, simplifies the harness branch into a harness terminal plug 22 fixed on the harness main trunk 21, and the component end 23 plug is arranged on the electrical component and docked with the harness plug on the harness main trunk 21 through the harness connector 24. Compared with the prior art, the vehicle harness removes the harness branch and only sets the harness terminal plug at the harness main trunk, reducing the complexity of the vehicle harness. Moreover, the routing and fixing method of each harness connector can be determined by each harness installation group, effectively reducing the workload of the harness designers. At the same time, the harness designers can meet the matching requirements of different vehicle models by increasing or decreasing the number of used harness terminal plugs, achieving the purpose of multi-purpose use of one line and emergency wire outlet, that is, one harness terminal plug on the harness main trunk can be connected to different electrical components, and the unused harness terminal plugs on the harness main trunk can be used as spare interfaces for emergency wire outlet, thus improving the versatility of the harness.

[0032] Further, the component end plug 23 and the electrical component are of an integral structure, which can save the installation operation between the component end plug and the electrical component, and at the same time can make it perform better in terms of anti-vibration, waterproof and reliability, improving the reliability of the entire electrical system. It can be understood that the electrical components can be various electrical modules, such as the cooling system 34, the air-conditioning system 35, the thermal management system 36, the steering system 31, the anti-lock braking module 33, and the left and right speakers 32, etc., which will not be elaborated here.

[0033] Preferably, the component end plug 23 and the electrical component are integrally formed by injection molding. Since the vibration amplitude at the pure electric light truck motor is relatively large, the low voltage at the motor needs to be fixed firmly, anti-vibration and wear-resistant. Traditional low-voltage motor harnesses usually use clamps, cable ties and bellows for fixing and protection, but the effect is not good and the plugs and harnesses connected to the motor body are prone to falling off and breaking, resulting in vehicle power limitation or even power failure. However, the present application solves this problem by using the injection molding integration method, which can effectively prevent the poor contact or disconnection between the plug and electrical components such as the motor due to the large vibration amplitude of the motor, ensuring the safe and reliable operation of the vehicle.

[0034] Specifically, the harness terminal plug 22 can be located inside the vehicle frame longitudinal beam, so that the docking part of the harness terminal plug 22 and the harness connector 24 has better waterproof and dustproof effects, improving the reliability of the electrical system.

[0035] In one embodiment, the wire harness connector 24 is connected to the mounting bracket of the electrical component by a buckle. With this solution, the wire harness connector can be conveniently snapped onto the mounting bracket of the electrical component by using the buckle, thus facilitating the installation and disassembly of the wire harness connector.

[0036] Specifically, the number of the buckles is two or more, so that the wire harness connector can be fixed to the mounting bracket of the electrical component relatively firmly.

[0037] In another embodiment, the wire harness connector 24 is connected to the mounting bracket of the electrical component by a sheet metal clip. With this solution, the wire harness connector can be conveniently snapped onto the mounting bracket of the electrical component by using the sheet metal clip, thus facilitating the installation and disassembly of the wire harness connector.

[0038] Specifically, the number of the sheet metal clips is two or more, so that the connection between the wire harness connector and the mounting bracket of the electrical component is relatively firm and reliable. It can be understood that the specific number of the buckles and the sheet metal clips can be flexibly set according to the installation requirements; the waterproof effect can be enhanced by adding a housing protection to some components when necessary; the wire harness connector can be made of high-quality materials that are durable and anti-aging to manufacture the wire harness, so as to prevent damage to the wire harness caused by friction, wear or environmental factors, thereby affecting the safe and reliable operation of the whole vehicle. The present invention can achieve the purpose of improving the versatility of the wire harness, reducing costs, shortening the development cycle and improving the reliability of the electrical system.

[0039] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A pure electric light truck low-voltage electrical wiring harness assembly, characterized in that, It includes a wire harness main trunk, wire harness termination plugs, and component termination plugs. A plurality of the wire harness termination plugs are arranged in the extending direction of the wire harness main trunk. The component termination plugs are used to be arranged on various electrical components of the vehicle, and each of the wire harness termination plugs is respectively connected to each of the component termination plugs through a wire harness connecting member; one end of the wire harness connecting member is inserted into the component termination plug through an insertion interface, and the other end of the wire harness connecting member is inserted into the wire harness termination plug through an insertion interface.

2. The low-voltage electrical harness assembly for a pure electric light truck according to claim 1, wherein, The component termination plug and the electrical component are of an integral structure.

3. The low-voltage electrical harness assembly for pure electric light trucks according to claim 2, characterized in that, The component termination plug and the electrical component are integrally formed by injection molding therebetween.

4. The low-voltage electrical harness assembly for a pure electric light truck according to claim 1, characterized in that, The wire harness termination plug is located inside the longitudinal beam of the vehicle frame.

5. The low-voltage electrical harness assembly for a pure electric light truck according to claim 1, characterized in that, The wire harness connecting member is connected to the mounting bracket of the electrical component through a buckle.

6. The low-voltage electrical harness assembly for pure electric light trucks according to claim 5, wherein The number of the buckles is two or more.

7. The low-voltage electrical harness assembly for a pure electric light truck according to claim 1, wherein The wire harness connecting member is connected to the mounting bracket of the electrical component through a sheet metal clip.

8. The low-voltage electrical harness assembly for pure electric light trucks according to claim 7, wherein, The number of the sheet metal clips is two or more.