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Design method of double-curvature glass for car doors and windows

A design method and double-curvature technology, applied in windshields, windows, motor vehicles, etc., can solve problems such as glass lifting motion error, glass and glass guide rail movement error, etc.

Active Publication Date: 2018-02-02
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Theoretically, the movement error between the glass and the guide rail is zero, and the error of the fit with the CAS surface can be controlled within 0.5mm, which solves the theoretical glass lifting motion error of the existing hyperbolic glass, that is, the gap between the glass and the glass guide rail. There is a problem of shifting error

Method used

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  • Design method of double-curvature glass for car doors and windows
  • Design method of double-curvature glass for car doors and windows
  • Design method of double-curvature glass for car doors and windows

Examples

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Embodiment Construction

[0033] In order to make the hyperbolic glass design method easier to understand, the design goals are explained as follows.

[0034] refer to figure 1 , a hyperbolic glass has the following structure:

[0035] 1) The equidistant helix with the straight line 107 as the axis of the front and rear boundaries of the glass, that is, the helix I101 and the helix II102.

[0036] 2) The radius difference between the radius I 103 of the helix I 101 and the radius 104 II of the helix II 102 does not exceed 50 mm.

[0037] 3) The glass reference plane 106 is a sweeping plane with the front and rear boundaries of the glass, namely the helix 101I and the helix 102II as the guide lines, and the sweeping arc 105 as the outline.

[0038] 4) The glass engineering surface 108 is a hyperboloid glass with a certain shape cut on the glass reference plane 106 .

[0039] The input when designing the above-mentioned glass is generally C1 of the glass CAS, the door CAS, and the section of the glass...

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Abstract

The invention relates to the technical field of glass for car doors and windows, in particular to a design method of double-curvature glass for the car doors and windows. The design method of the double-curvature glass for the car doors and windows provided by the invention theoretically has no displacement error between the glass and guide rails when the glass is lifted and lowered and the lifting and lowering movement of the glass is stable. The word "theoretically" means that manufacturing errors are not taken into account. Theoretically, the displacement error between the glass and the guide rails is zero and a matching error with a class A surface can be controlled within 0.5 mm, so as to solve the problem that prior double-curvature glass theoretically has an error of the lifting andlowering movement of the glass, that is the prior double-curvature glass has the displacement error between the glass and the glass guide rails.

Description

technical field [0001] The invention relates to the technical field of automobile door and window glass, in particular to a design method for double curvature glass of automobile door and window. Background technique [0002] Hyperbolic glass, that is, glass with curvature in both horizontal and vertical directions, is generally used in passenger cars with large side curves. In today's passenger car design, curves are pursued for beauty, and curves and curved surfaces are widely used in the design of new models. As an important part of the appearance of the vehicle, the door glass must be consistent with the overall curved surface and the side body shape, so the commonly used double-curvature glass is produced. This kind of glass has radians in the height (approximate) and length (approximate) directions of the vehicle body, and the glass surface is parallel to the overlapping part of the outer outer panel surface, so as to achieve the overall smooth and seamless shape of t...

Claims

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Application Information

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IPC IPC(8): B60J1/16B62D65/00
CPCB60J1/16B62D65/00
Inventor 潘冬冬马浩丁金星陈新张黎宏朱以贵宋必文张治国李虎徐倩陈明健刘晨
Owner CHINA FIRST AUTOMOBILE
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