阅读说明：本技术 机动车辆挡风玻璃 (Motor vehicle windscreen ) 是由 M.米绍 于 2019-06-21 设计创作，主要内容包括：本发明涉及机动车辆挡风玻璃,其包括两个通过由粘弹性材料制造的夹层(4)相互连接的透明基材(2,3),基材(2,3)中的至少一个在其表面上包括机电谐振器(10),该机电谐振器布置在紧邻配件(例如后视镜或摄像头)基座的位置(7)。本发明使其能够减弱,或甚至消除后视镜或摄像头的玻璃振动。(The invention relates to a motor vehicle windscreen comprising two transparent substrates (2, 3) interconnected by an interlayer (4) made of a viscoelastic material, at least one of the substrates (2, 3) comprising an electromechanical resonator (10) on its surface, which is arranged in close proximity (7) to the base of an accessory (e.g. a rearview mirror or a camera). The invention makes it possible to reduce, or even eliminate, the glass vibrations of the rear-view mirror or camera.)

1. A motor vehicle windscreen comprising two transparent substrates (2, 3) interconnected by an interlayer (4) made of a viscoelastic material, at least one of said substrates (2, 3) comprising on its surface an electromechanical resonator (10) arranged in a position (7) in close proximity to the base of an accessory, such as a rearview mirror or a camera.

2. Windscreen according to claim 1, wherein said electromechanical resonator (10) comprises a piezoelectric transducer (5) and a resonant circuit (6) connected to each other.

3. A windscreen as claimed in claim 2 wherein said resonant circuit (6) is a passive or semi-passive circuit comprising at least one inductor, said inductor being a coil or a synthetic inductor.

4. A windscreen as claimed in claim 3 wherein said resonant circuit (6) further comprises a synthetic negative capacitor.

5. Windscreen as claimed in claim 3 or 4, wherein said resonant circuit (6) further comprises a resistor.

6. Windscreen as claimed in one of the claims 3 to 5, wherein said resonant circuit (6) is further adapted by adjusting the inductance and/or capacitance.

7. Windscreen as claimed in one of claims 2 to 6, wherein said resonant circuit (6) is a multi-resonant circuit.

8. Windscreen as claimed in one of claims 2 to 7, wherein said electromechanical resonator (10) comprises a second piezoelectric transducer located on the opposite side of the transparent substrate to the first piezoelectric transducer and connected to the same resonant circuit as the first piezoelectric transducer.

9. Windscreen as claimed in one of claims 2 to 8, wherein said piezoelectric transducer (5) has an area of 1cm²To 100cm²Preferably 30cm²To 70cm²。

10. Windscreen as claimed in one of claims 2 to 9, wherein the total thickness of said piezoelectric transducers (5) ranges from 1 μm to 2mm, preferably from 500 μm to 1.5mm, or even from 800 μm to 1.2 mm.

11. Windscreen as claimed in one of claims 2 to 10, wherein said piezoelectric transducer (5) is transparent and is preferably based on zinc oxide, or on BaTiO₃Titanium and barium oxides of the type or based on aluminum nitride, or on lead zirconate titanate (PZT), or on polyvinylidene fluoride (PVDF), or on lanthanum-doped lead zirconate titanate (PLZT), or on poly (styrene-b-isoprene) block copolymers.

12. Windscreen as claimed in one of the claims 2 to 11, wherein said piezoelectric transducer (5) comprises a piezoelectric element, for example in the form of a thin layer, said piezoelectric element being located between two electrodes, for example in the form of thin layers, preferably at least one dielectric layer being arranged between each electrode and said piezoelectric element, said at least one dielectric layer being for example thin.

13. A windscreen as claimed in claim 12 wherein said two electrodes are transparent and preferably consist of a stack of thin layers comprising at least one thin layer made of an electrically conductive transparent oxide, for example made of titanium oxide, and/or a thin layer of metal.

14. Windscreen as claimed in one of claims 2 to 13, wherein said piezoelectric transducer (5) is attached to the side of said substrates (2, 3) opposite to said interlayer (4).