Fixing device and method for electric vehicle charging port assembly socket with wiring harness

Abstract

The invention provides a device and a method for fixing a charge port assembly socket with a wire harness for an electric automobile. The fixing device comprises an internal through connection support and an external through connection support which are fixedly connected at two sides of the flange mounting surface of an oiling pipe in an oiling port box, and the charge port assembly socket with the wire harness in the oiling port box is fixedly connected to the external through connection support. According to the technical scheme adopted by the invention, on the premise of not changing the flanging mounting surface and a mounting hole structure in the existing oiling port box, the trickle-charge charge port assembly socket with the charge harness, which is provided with four mounting holes and meets the national standard, can be effectively and firmly fixed on the oiling port box, the installation operation is convenient, the requirement of large-scale production can be met, and the production cost of the electric automobile is greatly lowered.

Description

technical field [0001] The invention belongs to the technical field of charging reformation of pure electric vehicles, and in particular relates to a fixing device and method for an internal slow charging belt harness charging port assembly socket and a vehicle body for pure electric vehicles. Background technique [0002] Energy and environmental protection are currently the most concerned issues in the world. To alleviate these two increasingly serious problems, the automobile industry must develop in the direction of environmental protection, cleanliness, and energy conservation. Pure electric vehicles completely replace oil with electricity, which can achieve "zero emission and zero pollution". It is an important means to solve energy and environmental problems. A new generation of energy-saving and environmentally friendly vehicles represented by pure electric vehicles (EV for short, the same below) is an inevitable trend in the development of the automobile industry. ...

AI Technical Summary

Problems solved by technology

[0005] In order to develop electric vehicles with collinear flexible production on the basis of the original gasoline vehicle platform and reduce development costs, a large number of manufacturers choose to connect the slow charging of electric vehicles to the charging port assembly socket with wiring harness (generally referred to as charging port assembly , is connected to the battery pack on the vehicle, and the battery pack in the car is charged through the external charging gun connected to it when charging) is arranged at the fuel port, because no matter it is arranged at other side parts of the body or at the front and rear bumpers, it will cause The cost of corresponding mold modification has increased significantly, and it is difficult to meet the requirements for the appearance of the car body and its own protection

When the charging port assembly replaces the fuel pipe and is arranged at the fuel port, since the mounting surface of the socket flange of the charging port assembly usually has four mounting holes (national standard GB-T20234.1-2011-electric vehicle transduction charging connection device ), which cannot be directly matched with the three holes 101 on the mounting flange surface 100 of the standardized fuel filler box, so realizing the installation and fixing between the two is a technical obstacle in this field

At present, some small-volume loading manufacturers continue to use one or two mounting holes 101 on the flange surface of the fuel filler box to cooperate with bolts and nuts in order to save the cost of remanufacturing the fuel filler box at the fuel filler hole and the inner panel body 5 of the right rear wheel house. Fix the charging port assembly, or develop a small welding bracket that can be matched with the charging port assembly socket and perform manual welding with the fuel filler box (the bottom area of ​​the fuel filler box is limited, which cannot meet the requirements for large wire welding), and then charge with the The mouth assembly socket is fixed with bolts

The fixing method of these charging port assemblies at the fuel filler box obviously cannot achieve high-strength fixing firmness, and cannot meet the requirements of mass production at all. These manual modification schemes cannot be used in stamping, welding and final assembly To meet the tact and tooling requirements required by co-line production, it also brings great challenges to the welding workshop, because workers on the same welding line must know which parts with the same appearance need to open holes or weld brackets Therefore, under the condition that the fuel filler port, the inner panel body of the right rear wheel house and other car body side panels remain unchanged, it is an electric vehicle to develop a low-cost charging port assembly fixing device and method that is convenient for assembly workers in mass production. Inevitable requirements for flexible production of EV and gasoline vehicles

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