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JP-7855731-B2 - Automotive glass, method for manufacturing the same, and intelligent connected vehicle

JP7855731B2JP 7855731 B2JP7855731 B2JP 7855731B2JP-7855731-B2

Inventors

  • 余 嚇群

Assignees

  • 福耀玻璃工業集団股▲フン▼有限公司

Dates

Publication Date
20260508
Application Date
20230607
Priority Date
20220607

Claims (7)

  1. An automotive glass comprising glass, an adhesive layer, and an antenna module bonded to the glass by the adhesive layer, or further comprising a bracket bonded to the glass by the adhesive layer and to which the antenna module is attached, The adhesive layer is distributed in the form of short lines in the edge region of the bottom surface of the antenna module or bracket . The adhesive layer is distributed around the bottom surface of the antenna module or bracket. The adhesive layer includes four linear adhesive lumps, The four adhesive lumps are each distributed in the edge region of each side of the bottom surface, The length of the adhesive mass is 40% or less and 30% or more of the side length. The vehicle glass is characterized in that the width of the adhesive mass is 15 mm or less .
  2. An automotive glass comprising glass, an adhesive layer, and an antenna module bonded to the glass by the adhesive layer, or further comprising a bracket bonded to the glass by the adhesive layer and to which the antenna module is attached, The adhesive layer is distributed in the form of short lines in the edge region of the bottom surface of the antenna module or bracket. The adhesive layer is distributed around the bottom surface of the antenna module or bracket. The adhesive layer includes adhesive lumps in the form of four right-angle bent-line structures, The four adhesive lumps are distributed in the edge regions of the four corners of the bottom surface, and Any two of the aforementioned adhesive lumps are not completely connected, The total length of the four adhesive blocks in the form of the right-angle bent-line structure is 30% or more and 40% or less of the total circumference of the bottom surface. The vehicle glass is characterized in that the width of the adhesive mass is 15 mm or less.
  3. An automotive glass comprising glass, an adhesive layer, and an antenna module bonded to the glass by the adhesive layer, or further comprising a bracket bonded to the glass by the adhesive layer and to which the antenna module is attached, The adhesive layer is distributed in the form of short lines in the edge region of the bottom surface of the antenna module or bracket. The adhesive layer is distributed around the bottom surface of the antenna module or bracket. The adhesive layer comprises adhesive lumps in the form of four 90° angled rounded bent-line structures, The four adhesive lumps are each distributed in the edge regions of the four corners of the bottom surface. The total length of the four adhesive blocks in the form of the 90° rounded corner structure is 30% or more and 40% or less of the total circumference of the bottom surface. The vehicle glass is characterized in that the width of the adhesive mass is 15 mm or less.
  4. The automotive glass according to any one of claims 1 to 3 , characterized in that the adhesive for forming the adhesive layer includes one or more combinations of polyurethane, propylene resin, polycarbonate resin, ABS resin, and fluororesin.
  5. A method for manufacturing automotive glass, comprising glass, an adhesive layer, and an antenna module bonded to the glass by the adhesive layer, or further comprising a bracket bonded to the glass by the adhesive layer and to which the antenna module is attached, The adhesive is applied to the edge area of the bottom surface of the antenna module or bracket using a spot application method. This includes bonding the bottom surface of the antenna module to the glass to obtain the vehicle-mounted glass, or bonding the bottom surface of the bracket to the glass, and further attaching the antenna module to the bracket to obtain the vehicle-mounted glass . The adhesive layer is distributed in the form of short lines in the edge region of the bottom surface of the antenna module or bracket . The adhesive layer is distributed around the bottom surface of the antenna module or bracket. The adhesive layer includes four linear adhesive lumps, The four adhesive lumps are each distributed in the edge region of each side of the bottom surface, The length of the adhesive mass is 40% or less and 30% or more of the side length. A method for manufacturing automotive glass, characterized in that the width of the adhesive mass is 15 mm or less .
  6. The manufacturing method according to claim 5 , characterized in that the dot coating method is a multi-dot coating method.
  7. Including at least the glass in the vehicle, The vehicle-mounted glass includes glass, an adhesive layer, and an antenna module bonded to the glass by the adhesive layer, or further includes a bracket bonded to the glass by the adhesive layer and to which the antenna module is attached, wherein the adhesive layer is distributed in the form of short lines in the edge region of the bottom surface of the antenna module or bracket . The adhesive layer is distributed around the bottom surface of the antenna module or bracket. The adhesive layer includes four linear adhesive lumps, The four adhesive lumps are each distributed in the edge region of each side of the bottom surface, The length of the adhesive mass is 40% or less and 30% or more of the side length. An intelligent connected vehicle characterized in that the width of the adhesive mass is 15 mm or less .

Description

(Cross-reference of related applications) This application claims priority to a Chinese patent application filed with the China National Intellectual Property Administration on June 7, 2022, with application number 202210634994.7, titled "Automotive Glass, Method for Manufacturing the Same, and Intelligent Connected Vehicle," and incorporates the entirety of that application by reference. This invention relates to automotive glass, a method for manufacturing the same, and an intelligent connected vehicle, and belongs to the technical field of intelligent vehicles and their components. With the development of new intelligent connected vehicles, large, single-pane glass panels with ultimate form factors are being used, compressing the space available for mounting automotive antennas outside the vehicle to support functions such as in-vehicle billing, communication, and positioning. According to the specifications of existing complete equipment manufacturers, antennas for these functions are beginning to be moved entirely inside the vehicle. In particular, directly fixing the antenna to the glass at its mounting location is one method to ensure proper antenna operation. In this method, a mounting bracket is typically used as a bridge between the antenna and the glass. First, the bracket is fixed to the glass with adhesive, and then the antenna is attached to the bracket. Alternatively, the antenna may be directly glued to the glass. Currently, methods of attaching antennas to glass with adhesive either do not consider the material properties of the adhesive itself, or their properties have not been sufficiently studied. Therefore, whether the antenna is fixed using a bracket as a bridge or directly bonded to the glass, the performance of the antenna is significantly affected. Research has shown that if the adhesive is not used properly, it can reduce the antenna gain by 0.5 dB to 1.5 dB or more. Therefore, providing novel automotive glass, its manufacturing method, and intelligent connected vehicles is an urgent technological challenge that needs to be addressed in this field. Schematic diagram of the adhesive layer structure formed by the four-point coating method in Example 1 of the present invention.Schematic diagram of the simulation of the adhesive layer structure formed by the four-point coating method in Example 1 of the present invention.Schematic diagram of the simulation of the adhesive layer structure formed by the four-point coating method in Example 2 of the present invention.Schematic diagram of the adhesive layer structure formed by the full-surface adhesive application method in Comparative Example 1Schematic diagram of the overall mounting of an in-vehicle glass according to Embodiment 1 of the present inventionCross-sectional view along line A-A in Figure 5Comparison graph of the gain performance of antenna modules in automotive glass according to Example 1 and Comparative Example 1 of the present invention within the frequency range of 1160 MHz - 1610 MHz.Comparison graph of the gain performance of antenna modules in automotive glass according to Example 1 and Comparative Example 1 of the present invention within the frequency range of 1160 MHz - 1610 MHz. Furthermore, in the specification, claims, and drawings of this invention, the term "including" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly mentioned, and may include other steps or units not explicitly mentioned or specific to those processes, methods, products, or apparatus. In this invention, the directions or positional relationships indicated by terms such as "up," "down," "inside," "outside," and "center" are based on the directions or positional relationships shown in the drawings. These terms are primarily used to better describe the invention and its embodiments, and are not intended to limit the shown devices, elements, or components to necessarily having a specific direction or being configured or operated in a specific direction. Furthermore, some of the above terms may be used to express meanings other than those related to direction or position. For example, the term "above" may, in some cases, be used to express a dependent or connected relationship. Those skilled in the art will be able to understand the specific meaning of these terms in this invention depending on the specific context. To further clarify the object, technical concept, and advantages of the present invention, the present invention will be described in more detail below with reference to the drawings and examples. The examples described below are not all examples of the present invention, but rather some examples, and are for illustrative purposes only, not limiting the scope of the present invention. Any other examples obtained by those skilled in the art without crea