What are the design requirements of car door?

2019-10-28 14:22:31

For the inspection of new car doors, it is necessary to first observe whether there are small ripples in the frame of new car doors, then check whether there are problems in the A-pillar, B-pillar and C-pillar of new car doors, and check whether there is corrosion on the prism of new car frame. This is a very easy place for problems, because many people will accidentally bump into the obstacles around the car body when opening the door, so the paint surface of prism will be rusted.

Pay more attention to the prism when checking the door of a new car

Although the inspection of the new car door is not as important as the inspection of the transmission, it cannot be ignored. After all, if the door of the new car is not well sealed, which causes water leakage when it rains, or if it was an accident car, it is not very depressed.

I. inspection when the new car door is closed:

Observe whether the gaps on both sides of the new car door are smooth, flat and uniform, and whether the tightness is on the same horizontal line, because if there is a problem with the installation of the door, it is possible that the door is higher or lower than the other side of the door. In this step, we should not only look carefully, but also touch with our hands.

II. Inspection when the new car door is opened:

Observe whether the rubber strip on the new car door, A-pillar and B-pillar is normal. If the rubber strip is not installed correctly, the rubber strip on both sides will be deformed after the door is closed and squeezed for many times. In this way, the sealing performance of the new car will not be very good. In serious cases, it may lead to filling the new car when it rains.

III. for the inspection of new car doors, it is also necessary to carefully check whether the paint surface of the parts inside the A-pillar of new car is normal and whether the screws are firm. Not only the screws here, but also the screws at all positions during the new car inspection should be carefully checked.

IV. open and close each door several times, and check whether the opening and closing process is smooth and natural, and whether there is abnormal noise.

Friendly tip: when checking and operating the new car door, it is necessary to observe and operate in multiple directions, so as to find out the problem. New car inspection must not be afraid of trouble, and the inspection of new car doors can not only be reflected in one door, four new car doors should be carefully done, so as to ensure the quality to a large extent.

The car door is to provide the driver and passengers with access to the vehicle, and isolate the interference outside the vehicle, to a certain extent, reduce the side impact and protect the passengers. The beauty of the car is also related to the shape of the door. Today, auto parts manufacturers talk about the design requirements of car doors.

The quality of the door is mainly reflected in the anti-collision performance of the door, the sealing performance of the door, the opening and closing convenience of the door, and of course, other indicators of use functions. The anti-collision performance is particularly important, because the buffer distance is very short when the vehicle is in side collision, it is easy to hurt the personnel in the vehicle.

1. Ensure the convenience of passengers getting on and off the train, and control the wide opening at about 65 ° ~ 70 °;

2. No position interference with other parts during opening;

3. When the door is closed, it shall be locked reliably and will not be opened by itself during driving;

4. The door mechanism is easy to operate, including closing the door freely and lifting the glass easily.

5. Good sealing performance requirements;

6. It has a large light transmission surface and meets the requirements of lateral vision;

7. Sufficient strength and rigidity shall be provided to ensure reliable operation of the door, reduce part of the vibration of the door, improve the side collision safety of the vehicle and prevent the door from sinking;

8. Good door manufacturing and assembly process.