Engine wire harness arrangement method, engine and vehicle

Abstract

The invention relates to the technical field of engines, in particular to an engine wire harness arrangement method, an engine and a vehicle, and the engine wire harness arrangement method comprises the following steps: dividing a power line into two sections including an engine side section and a power supply side section; the first end of the engine side section is electrically connected with a starter of an engine, the engine side section is sleeved with a protection support, and the protection support is fixedly connected with the lower end of an engine flywheel shell. The first end of the power supply side section is electrically connected with a storage battery of the vehicle; the power supply butt joint box is arranged on a vehicle frame, the second end of the engine side section is electrically connected with a first butt joint of the power supply butt joint box, the second end of the power supply side section is electrically connected with a second butt joint of the power supply butt joint box, and the first butt joint is communicated with the second butt joint. The length of the power line can be shortened, and the power line is convenient to assemble and straighten out.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and in particular to an engine wiring harness layout method, an engine and a vehicle. Background Technique

[0002] With the development of the automotive industry, more and more vehicles have entered production and daily life, providing great convenience for people's travel and logistics transportation. When the engine is working, a starter is needed to start the engine. The starter motor in the engine is the core component of the starting system, and its main function is to convert electrical energy into mechanical energy to drive the engine crankshaft to rotate until the engine completes self-sustained operation (i.e., successful ignition and continuous operation). When the engine is cold-started, the engine oil has a high viscosity and a large internal friction resistance, and the starter needs to provide sufficient torque to overcome these resistances. When the starter is working, it is the component with the largest instantaneous power consumption in the vehicle electrical system (up to hundreds of amperes), and a short-term high current needs to be provided by the battery. Therefore, it is necessary to electrically connect the starter to the battery using a power line.

[0003] Due to the large variety of commercial vehicle chassis, the layout method of the power line varies greatly according to market and user needs. When the starter and the battery are arranged on different sides, there are problems such as a long power line length and difficulty in straightening. Moreover, after the engine is installed on the frame, the assembly operation space is small, resulting in difficulties in subsequent power line straightening and installation.

[0004] Therefore, an engine wiring harness layout method, an engine and a vehicle are needed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an engine wiring harness layout method, an engine and a vehicle, which can shorten the length of the power line and is convenient for assembly and straightening.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] An engine wiring harness layout method, including the following steps:

[0008] Divide the power line into two segments, including an engine-side segment and a power-source-side segment;

[0009] The first end of the engine-side segment is electrically connected to the starter of the engine, and a protective bracket is sleeved on the engine-side segment, and the protective bracket is fixedly connected to the lower end of the engine flywheel housing;

[0010] The first end of the power-source-side segment is electrically connected to the battery of the vehicle;

[0011] The power connection box is arranged on the vehicle frame. The second end of the engine side section is electrically connected to the first docking joint of the power connection box, the second end of the power supply side section is electrically connected to the second docking joint of the power connection box, and the first docking joint is in conduction with the second docking joint.

[0012] In some embodiments, the protective bracket has fixing ears, and a fixing member passes through the fixing ears and is fixedly connected to the lower end of the engine flywheel housing.

[0013] In some embodiments, a plurality of the fixing ears are arranged at intervals on the protective bracket along the extending direction of the protective bracket, and a plurality of fixing members are arranged in one-to-one correspondence with the plurality of fixing ears.

[0014] In some embodiments, a redundant section with a set length is reserved on the engine side section.

[0015] In some embodiments, the lower end face of the protective bracket facing the engine flywheel housing is designed to conform to the lower end face of the engine flywheel housing.

[0016] In some embodiments, the engine side section is completely located in the protective bracket.

[0017] In some embodiments, the power supply side section is fixedly connected to the vehicle frame through a fixing bracket.

[0018] In some embodiments, the power connection box has waterproof performance.

[0019] An engine, including an engine body and a power cord, and the power cord is arranged on the engine body according to the engine wiring harness arrangement method described above.

[0020] A vehicle, including a vehicle frame and the engine described above, and the engine is arranged on the vehicle frame.

[0021] Advantages of the present invention:

[0022] An engine wiring harness layout method provided by the present invention divides the power line into two segments, including an engine-side segment and a power-source-side segment; the first end of the engine-side segment is electrically connected to the starter of the engine, and a protective bracket is sleeved on the engine-side segment, and the protective bracket is fixedly connected to the lower end of the engine flywheel housing; the first end of the power-source-side segment is electrically connected to the vehicle battery; a power connection box is arranged on the vehicle frame, the second end of the engine-side segment is electrically connected to the first docking joint of the power connection box, and the second end of the power-source-side segment is electrically connected to the second docking joint of the power connection box. By dividing the power line into an engine-side segment and a power-source-side segment, the engine-side segment is arranged from the lower end of the engine flywheel housing, avoiding the traditional power line layout method, and realizing the layout and fixation of the engine-side segment from the shortest path and the position with fewer pipeline bundles and components, achieving the purpose of short power line layout path distance and convenient arrangement. By passing the engine-side segment through the protective bracket, the protective bracket ensures that the engine-side segment of the power line is not damaged by flying objects such as stones, and the shape of the protective bracket fits the engine-side segment of the power line to the greatest extent, while taking into account lightweight and low cost. Moreover, the power line is divided into two segments, namely an engine-side segment and a power-source-side segment, and the engine-side segment is arranged on the engine side, and the engine-side segment and the protective bracket are fixed on the engine flywheel housing in advance. It can ensure that on the premise that the starter and the battery are on different sides of the engine, no matter how the power source position moves, the engine-side segment and the protective bracket can remain in place. At the same time, the assembly of the engine-side segment and the protective bracket is completed in advance during the engine sub-assembly. The segmented design not only ensures the assembly space but also ensures the assemblability after the engine is installed. After the engine and the battery are installed in place, only the engine-side segment and the power-source-side segment need to be docked through the power connection box, which is simple and easy to operate.

[0023] An engine provided by the present invention includes an engine body and a power line, which can shorten the length of the power line and is convenient for assembly and arrangement.

[0024] A vehicle provided by the present invention includes a vehicle frame and the engine as described above, which can shorten the length of the power line and is convenient for assembly and arrangement. Brief Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present invention and these drawings.

[0026] Figure 1 It is a flowchart of an engine wiring harness layout method of the present invention. Detailed Embodiments

[0027] Before explaining any embodiments of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0028] In the present application, the terms "comprising", "including", "having" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element.

[0029] In the present application, the terms "connected", "coupled", "joined", "mounted" can be direct connection, coupling, joining or mounting, or can be indirect connection, coupling, joining or mounting. By way of example, direct connection means that two parts or components are connected together without the need for an intermediate member, and indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connected" and "coupled" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0030] In the present application, those of ordinary skill in the art will understand that the functions performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0031] In the present application, the orientation terms such as "upper", "lower", "left", "right", "front", "rear", etc. are described based on the orientation and positional relationship shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that the orientation terms such as upper side, lower side, left side, right side, front side, rear side, etc. not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front and lower rear, etc.

[0032] When electrically connecting the starter of the engine to the battery, in order to be able to shorten the length of the power line and facilitate assembly and routing, as Figure 1 shown, the present invention provides a method for arranging the engine wiring harness. The method for arranging the engine wiring harness includes the following steps:

[0033] The power cord is divided into two sections, including an engine-side section and a power-source-side section;

[0034] The first end of the engine-side section is electrically connected to the starter of the engine, and a protective bracket is sleeved on the engine-side section, and the protective bracket is fixedly connected to the lower end of the engine flywheel housing;

[0035] The first end of the power-source-side section is electrically connected to the vehicle battery;

[0036] The power connection box is arranged on the vehicle frame. The second end of the engine-side section is electrically connected to the first docking joint of the power connection box, and the second end of the power-source-side section is electrically connected to the second docking joint of the power connection box. The first docking joint and the second docking joint are electrically connected.

[0037] By dividing the power cord into an engine-side section and a power-source-side section, the engine-side section is arranged from the lower end of the engine flywheel housing, avoiding the traditional power cord arrangement method, and realizing the arrangement and fixation of the engine-side section from the shortest path and the position with fewer pipeline bundles and components, achieving the purpose of short power cord arrangement path distance and convenient wiring. By passing the engine-side section through the protective bracket, the protective bracket ensures that the engine-side section of the power cord is not damaged by flying objects such as stones, and the shape of the protective bracket fits the engine-side section of the power cord to the greatest extent, while taking into account lightweight and low cost. Moreover, the power cord is divided into two sections, the engine-side section and the power-source-side section. The engine-side section is arranged on the engine side, and the engine-side section and the protective bracket are fixed to the engine flywheel housing in advance. It can ensure that regardless of how the power source position moves, the engine-side section and the protective bracket can remain in place on the premise that the starter and the battery are on different sides of the engine. At the same time, the assembly of the engine-side section and the protective bracket is completed in advance during the engine sub-assembly. The segmented design not only ensures the assembly space but also ensures the assemblability after the engine is installed. After the engine and the battery are installed in place, only the engine-side section and the power-source-side section need to be docked through the power connection box, which is simple and easy to operate.

[0038] In some embodiments, the protective bracket has fixing ears, and a fixing member passes through the fixing ears and is fixedly connected to the lower end of the engine flywheel housing. Specifically, in this embodiment, the fixing member can be a screw. The screw passes through the fixing ears and is fixedly connected to the lower end of the engine flywheel housing, thereby stably installing the protective bracket to the lower end of the engine flywheel housing. The protective bracket can effectively protect the engine-side section of the power cord. By using the fixing member and the fixing ears to cooperate to install the protective bracket, it is convenient to install the protective bracket on the engine flywheel housing.

[0039] In some embodiments, a plurality of fixing lugs are arranged at intervals on the protection bracket along the extension direction of the protection bracket, and a plurality of fixing members are arranged in one-to-one correspondence with the plurality of fixing lugs. Through the above arrangement, it is possible to ensure the stable connection between the protection bracket and the engine flywheel housing, and even in the event of a certain collision, the engine side section of the power line can still be protected.

[0040] In some embodiments, a redundant section with a set length is reserved for the engine side section. Since the engine will shake and move a certain distance slightly during the vehicle's driving process, it will stretch the power line. Therefore, the harness margin is reserved in advance, the margin length of the engine side section is determined according to the limit of the engine deflection distance, and it is fixed on the vehicle frame. Since the power supply side section has no movement amount, only firm fixation is required. By designing the redundant section, it is possible to ensure that the power line is not damaged.

[0041] In some embodiments, the protection bracket is made of a non-metallic material. Specifically, the protection bracket can be made of plastic. While ensuring insulation, it can be manufactured by an injection molding process, which is convenient for manufacturing and the structural strength can meet the requirements.

[0042] In some embodiments, the lower end face of the protection bracket facing the engine flywheel housing is designed to conform to the lower end face of the engine flywheel housing. Through the above method, it is possible to make the protection bracket fit the engine flywheel housing, which is convenient for the arrangement and protection of the engine side section.

[0043] In some embodiments, the engine side section is completely located in the protection bracket. Through the above method, it is possible to fully protect the engine side section by using the protection bracket and prevent the engine side section from being damaged by objects such as flying stones.

[0044] In some embodiments, the power supply side section is fixedly connected to the vehicle frame through a fixing bracket. By setting the fixing bracket, it is possible to fix the position of the power supply side section on the vehicle frame and prevent the power supply side section from being worn by dragging on the ground.

[0045] In some embodiments, the power supply docking box has waterproof performance. Since the power supply docking box needs to satisfy the conduction between the first docking joint and the second docking joint, therefore, the power supply docking box has waterproof performance, which can prevent water ingress from causing a short circuit, so as to ensure that after the power supply side section and the engine side section are docked through the power supply docking box, the function of stable conduction can be realized.

[0046] This embodiment also provides an engine, including an engine body and a power line. The power line is arranged on the engine body according to the above engine wiring harness arrangement method, which can shorten the length of the power line and is convenient for assembly and arrangement.

[0047] This embodiment also provides a vehicle, including a vehicle frame and the above engine. The engine is arranged on the vehicle frame, which can shorten the length of the power line and is convenient for assembly and arrangement.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. Method for arranging engine wiring harness, characterized in that, It includes the following steps: The power cord is divided into two sections, including an engine-side section and a power-source-side section; The first end of the engine-side section is electrically connected to the starter of the engine, and a protective bracket is sleeved on the engine-side section, and the protective bracket is fixedly connected to the lower end of the engine flywheel housing; The first end of the power-source-side section is electrically connected to the vehicle battery; The power docking box is arranged on the vehicle frame. The second end of the engine-side section is electrically connected to the first docking joint of the power docking box, the second end of the power-source-side section is electrically connected to the second docking joint of the power docking box, and the first docking joint is in conduction with the second docking joint.

2. The engine harness layout method according to claim 1, wherein The protective bracket has fixing ears, and fixing pieces pass through the fixing ears and are fixedly connected to the lower end of the engine flywheel housing.

3. The engine wiring harness layout method according to claim 2, wherein, A plurality of the fixing ears are arranged at intervals on the protective bracket along the extending direction of the protective bracket, and a plurality of fixing pieces are arranged in one-to-one correspondence with the plurality of fixing ears.

4. The engine wiring harness layout method according to claim 2, wherein, A redundant section with a set length is reserved on the engine-side section.

5. The engine wiring harness layout method according to claim 1, characterized in that, The end face of the protective bracket facing the lower end of the engine flywheel housing is designed to conform to the lower end face of the engine flywheel housing.

6. The engine wiring harness layout method according to claim 1, wherein, The engine-side section is completely located in the protective bracket.

7. The engine wiring harness layout method according to claim 1, wherein The power-source-side section is fixedly connected to the vehicle frame through a fixing bracket.

8. The engine wiring harness layout method according to claim 1, characterized in that, The power docking box has waterproof performance.

9. An engine, characterized in that, It includes an engine body and a power cord, and the power cord is arranged on the engine body according to the engine wiring harness arrangement method described in any one of claims 1-8.

10. A vehicle, characterized in that, It includes a vehicle frame and an engine as described in claim 9, and the engine is arranged on the vehicle frame.

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