Intelligent windscreen

A windshield, intelligent technology, applied in windshields, windows, bumpers, etc., can solve the problems of inconvenience and general thermal conductivity of windshields, and achieve the effect of prolonging the impact time.

Active Publication Date: 2015-02-04
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the thermal conductivity of the windshield glass used now is average, especially in summer, if the vehicle is parked directly in the sun, the temperature inside the car will be much higher than the outdoor temperature, which will bring great inconvenience to people

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, in this embodiment, a smart windshield, the energy-absorbing structure 1 is made of polyurethane first, and then polyester resin is filled into the energy-absorbing structure 1 as a filler 2, and polyvinyl chloride is used as a polymer material The encapsulation layer 3 is used for encapsulation, and finally the encapsulated energy-absorbing structure 1 is placed in the windshield 4 with an interlayer space.

[0030] Such as image 3 Shown is the stress comparison diagram of the smart windshield and the ordinary windshield when it is hit. It can be seen from the figure that the maximum acceleration of the smart windshield is only 60% to 70% of that of the ordinary windshield, that is, when a collision occurs, the maximum impact force received is reduced by about 30% to 40%. It can be seen that the smart windshield can played a huge protective role. At the same time, the windshield can also prolong the time of the stress wave, thereby reduci...

Embodiment 2

[0032] Such as figure 1 As shown, a smart windshield in this embodiment first uses silica gel to make an energy-absorbing structure 1, then fills the energy-absorbing structure 1 with a fiber composite phase change material as a filler 2, and uses polyethylene material as a polymer The material encapsulation layer 3 is used for encapsulation, and finally the encapsulated energy-absorbing structure is placed in the windshield 4 with interlayer space.

[0033] The fiber composite phase change material will react to the phase change of the ambient temperature. When the ambient temperature exceeds 25°C (the comfortable temperature of the human body is between 21 and 24°C), the thermal conductivity of the fiber composite phase change material will deteriorate, especially in summer. Day, the deterioration of thermal conductivity will effectively prevent the external heat transfer.

Embodiment 3

[0035] Such as figure 1 As shown, in this embodiment, a smart windshield, the energy-absorbing structure 1 is made of silica gel, and then the photosensitive resin is filled into the energy-absorbing structure 1 as the filler 2, and the polyurethane material is used as the polymer material encapsulation layer 3 Encapsulation is performed, and finally the encapsulated energy-absorbing structure 1 is placed in the windshield 4 with interlayer space.

[0036] Photosensitive resin can absorb light energy. Under different light intensities, its thermal conductivity will change. For example, in summer, when the ultraviolet rays are strong, the thermal conductivity of photosensitive resin will deteriorate, preventing heat exchange, and can effectively prevent the car The temperature inside the car rises sharply due to exposure to the hot sun.

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Abstract

The invention discloses an intelligent windscreen, which comprises a windscreen with an interlayer space; two rows of energy absorption structures respectively made of a high-elasticity high molecular material are arranged in the interlayer space of the windscreen; each energy absorption structure comprises an open end, and is hollow, and filler with a buffering energy absorption effect fills each energy absorption structure; bottom parts of the two rows of the energy absorption structures are in contact and adhesion, and top parts of the energy absorption structures are sealed by adopting a high molecular material sealing layer; the high molecular material sealing layer is bonded to the inner side face of the windscreen; when the windscreen is impacted, energy generated when the windscreen is impacted can be absorbed by the energy absorption structures in the interlayer space and the windscreen, and meanwhile, the time of the impact effect is prolonged, and therefore the goal of safety protection is achieved; moreover, the heat conductivity of the intelligent windscreen can be effectively adjusted by changing the material or the ratio of the filler in the energy absorption structures, and therefore the heat transfer rate between the external environment and the internal space is controlled, so that the windscreen takes an effect of cool in summer and warm in winter.

Description

technical field [0001] The invention relates to a windshield, in particular to an intelligent windshield. Background technique [0002] As a very important part of the car, the windshield not only ensures the driver's good vision, but also prevents "uninvited guests" such as falling rocks, and protects the safety of the driver and passengers. Therefore, the safety performance of the windshield has been highly valued. At present, cars on the market mainly use laminated tempered glass and laminated regional tempered glass, which can resist strong impact. Even in the case of rupture, only cracks will appear, and there will be no damage caused by fragments like ordinary glass. . These two kinds of glass are pasted between the second or third layers of glass with a transparent adhesive plastic film, which combines the toughness of plastic and the hardness of tempered glass, thus greatly improving the resistance of the glass. crushing capacity. Even so, current windshields are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60J1/00B60R19/02
Inventor 邓晓彬刘益伦陈曦周迦律闫渊
Owner XI AN JIAOTONG UNIV
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