Method for improving endurance of battery electric vehicle based on connection of aluminum skin and steel vehicle body
A pure electric vehicle, skin technology, applied to the connection between the sub-assemblies of the upper structure, vehicle components, upper structure, etc., can solve the problems of difficult welding, inability to realize welding connection, high quality risk, etc., to avoid flatness Degree difference, ensure flatness, ensure the effect of bonding strength
Pending Publication Date: 2020-11-24
NANJING GOLDEN DRAGON BUS
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- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At this time, the aluminum skin and the steel body cannot be connected by simple welding, and the welding is difficult and the quality risk is high
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The present invention is based on the method of connecting the aluminum skin and the steel body to improve the battery life of the pure electric vehicle. The steps are as follows:
[0022] Step 1: Treat the aluminum skin, first clean the inner surface of the aluminum skin and dry it for 15 minutes, then apply the primer, and dry it for 15 minutes after the primer, and the cleaning validity period shall not exceed 24 hours;
[0023] Step 2: Polish the steel body frame, and then apply primer;
[0024] Step 3: Paste the limit rubber strip on the steel body frame, where the thickness of the limit rubber strip is 3mm;
[0025] Step 4: Apply glue to the area surrounded by the upper limit rubber strips of the steel body frame, where the height of the glue nozzle is 10-12mm and the width is 13-15mm;
[0026] Step 5: Paste the aluminum skin on the steel body frame, and adjust the height by positioning the aluminum skin through the fixture;
[0027] Step 6: Nail the front flang...
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Abstract
The invention discloses a method for improving the endurance of a battery electric vehicle based on connection of an aluminum skin and a steel vehicle body. The method comprises the following steps that the aluminum skin is treated, firstly, the inner surface of the aluminum skin is dried for 15 minutes after being cleaned, then prime coating operation is carried out, and drying is also carried out for 15 minutes after prime coating operation; a steel vehicle body framework is polished and then subjected to prime coating operation; limiting adhesive tape is pasted on the steel vehicle body framework; an area defined by the limiting adhesive tape on the steel vehicle body framework is glued; the aluminum skin is pasted on the steel vehicle body framework, and the aluminum skin is positionedthrough a clamp so as to adjust the height; the front end flange of the aluminum skin is nailed to achieve temporary fixation; the aluminum skin is tensioned; flame treatment is carried out to relieve stress so as to tightly attach the aluminum skin to the steel vehicle body framework; the front end flange of the aluminum skin is nailed and cut off; and the aluminum skin and the steel vehicle body are fixedly connected. According to the method for improving the endurance of the battery electric vehicle based on connection of the aluminum skin and the steel vehicle body, the aluminum skin andthe steel vehicle body are connected by adopting a glue bonding scheme, so that the flatness of the aluminum skin is ensured while the bonding strength is ensured.
Description
Technical field: [0001] The invention relates to a method for improving battery life of a pure electric vehicle based on the connection between an aluminum skin and a steel body, which belongs to the technical field of lightweight vehicle installation. Background technique: [0002] The iron skin and steel body structure of existing lightweight models use a welding and fixing scheme. The structure is simple and the welding strength is sufficient. However, in order to reduce the weight of the body and improve the actual battery life of pure electric vehicles, it is necessary to replace the iron skin with aluminum skin. The skin reduces the overall weight of the vehicle body and realizes the economical operation of the vehicle. At this time, the aluminum skin and the steel body cannot be connected by simple welding, and the welding is difficult and the quality risk is high. [0003] Therefore, it is necessary to improve the prior art to solve the deficiencies of the prior art...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B62D27/02
CPCB62D27/026
Inventor 徐洋游海涵任玥豪
Owner NANJING GOLDEN DRAGON BUS