Here is an introduction to the types of car sunroofs: 1. Based on the driving method, car sunroofs can be divided into manual and electric types. Manual sunroofs are opened and closed by human force. They have a relatively simple structure, are cheaper, and easier to install. Electric sunroofs are powered by electricity for opening and closing. They are of higher grade and more expensive. Due to the need for wiring during installation, the installation difficulty is greater. 2. According to the panel material, sunroofs can be divided into glass panels, metal panels, and composite material panels. 3. Based on structural forms, car sunroofs can be categorized into outward-tilting, outward-sliding, built-in, and convertible types. (1) Outward-tilting sunroof: When opened, the glass tilts outward and backward (forward). Its structural principle is similar to that of the sunroof on large buses, but the materials used and precision are higher. (2) Outward-sliding sunroof: When opened, it first lifts slightly upward and then slides backward; when closed, it first slides back to the original starting position and then closes downward. (3) Built-in sunroof: After opening, it can maintain different curvatures, has anti-pinch and automatic closing functions, and comes with an independent built-in sunshade. The glass of this sunroof also has UV protection and heat insulation functions. Due to its comprehensive functions and ease of use, this type of sunroof is mostly used in medium and large-sized cars. (4) Convertible sunroof: When opened, it folds in segments, providing a large open space with a compact structure. This sunroof is made of high-quality special materials and has UV protection and heat insulation effects. This sunroof is very avant-garde and suits the taste of young people. Compared to the first three types of sunroofs, the convertible sunroof has slightly poorer sealing and dustproof effects.
