• Categories:Industry news
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• Time of issue:2021-10-12 16:23
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(Summary description)Car door and window glass should not only ensure that the driver has sufficient perspective to safely drive and drive; At the same time, in order to meet the needs of riding comfort, the position of the glass often needs to be adjusted, so the range of glass adjustment and the flexibility and convenience of operation become important performance indicators. The mechanism that ensures flexible adjustment of car windows is the window regulator, which is also an important component for car safety and comfort.
Structure and characteristics of car window regulator
In 1981, China implemented the JB2882-81 "Technical Conditions 8 Standard for Glass Lifts for Heavy Duty Vehicles". Based on this standard, and based on the manufacturing, use, and testing situation of glass Lifts for automobiles in China, and referring to relevant international advanced technical indicators and data, the automotive industry standards QC/T29026-91 "Test Methods for Glass Lifts for Automobiles" and QCT29027-91 were revised and formulated The "Technical Conditions for Automotive Glass Lifter" was promulgated and implemented in 1991, which clearly stipulates the basic technical performance and testing methods of automotive glass lifters. Due to the widespread use of arm type glass lifters in China, other types, especially flexible glass lifters, lack relevant technical information and data. Therefore, the above standards are only applicable to arm type glass lifters, and other types of glass lifters The descent device can also be executed as a reference.
Due to the relatively simple manufacturing process and low cost of arm type window regulators, about 80% of car window regulators in China currently use arm type window regulators. The flexible glass regulator is much more compact in terms of stability and motion resistance, and is more convenient to install and arrange. However, there is currently no official national standard for flexible glass regulators in China.
The flexible shaft type window regulator has been widely used in various high-end vehicles, especially sedans, around the world, and is a relatively advanced type of window regulator. In recent years, imported automotive products in China, such as CNHTC Steyr, Beijing Cherokee, and Nanjing Iveco, have all adopted this type of opening and lowering device. Currently, some automotive parts factories in China, such as Beijing Automotive Window Lifter Factory, Nanqi Vehicle Tool Factory, and Sichuan Automotive Factory Accessory Factory, have completed the technical development (introduction) of the production process for flexible shaft glass regulators, providing domestically produced products. With the improvement of their mass production level, It can also be used as an alternative to arm type window regulators.
Due to the requirements of automotive structural layout design, manufacturing costs, and manufacturing technology, manual push-pull window adjustment mechanisms are still used in many vehicles. At present, arm and manual (mechanical) window regulators are the main types of use, while the application of flexible window regulators is still limited to imported models, while the application of electric window regulators is relatively limited.
The application of electric window regulators in mid to high-end cars abroad is already very common. However, due to its complex structure, high cost, and unstable performance of small motor products in China, its application in automotive products in China is still limited. It can be foreseen that with the improvement of China's automotive design and manufacturing level, electric window regulators will be increasingly applied to automotive products.