Laminated glass, vehicle window glass assembly and vehicle

Abstract

The utility model provides laminated glass, a vehicle window glass assembly and a vehicle, the laminated glass comprises a first glass plate, a first middle layer, a sound insulation layer, a second middle layer and a second glass plate which are sequentially stacked, the sound insulation layer is used for being connected with a power source, and the sound insulation layer is further used for having different surface densities under different voltages of the power source. The voltage is applied to the sound insulation layer to change the surface density of the sound insulation layer, so that the sound insulation performance of the laminated glass is adjusted, the sound insulation effect of the whole vehicle can be adjusted in the vehicle driving process, and the requirements of a driver for the sound insulation effect under different environmental conditions are met.

Description

Technical Field

[0001] The present application belongs to the technical field of laminated glass, and specifically relates to laminated glass, a vehicle window glass assembly and a vehicle. Background Art

[0002] With increasing demands for automotive comfort, the sound insulation performance of laminated glass is receiving increasing attention. In some environments, a certain amount of sound is required to allow drivers to detect external sounds, make correct judgments, and prevent traffic accidents. For example, in areas with traffic control, schools, and complex road conditions, drivers need to be aware of external sounds when making decisions about driving to avoid accidents. However, in related technologies, the sound insulation properties and effects of laminated glass are completely fixed after production and cannot be adjusted according to environmental changes, resulting in limited application scenarios. Utility Model Content

[0003] In view of this, the first aspect of the present application provides a laminated glass, which includes a first glass plate, a first intermediate layer, a sound insulation layer, a second intermediate layer and a second glass plate stacked in sequence, the sound insulation layer is used to connect to a power supply, and the sound insulation layer is also used to have different surface densities under different voltages of the power supply.

[0004] The sound insulation layer includes a dielectric high-elastic polymer layer and gel layers arranged on opposite sides of the dielectric high-elastic polymer layer. One gel layer is arranged between the dielectric high-elastic polymer layer and the first intermediate layer, and the other gel layer is arranged between the dielectric high-elastic polymer layer and the second intermediate layer. The gel layers are used to have different surface densities under different voltages of the power supply.

[0005] Wherein, the dielectric elastic polymer layer is an acrylate layer.

[0006] Wherein, the thickness of the dielectric elastic polymer layer is smaller than the thickness of the gel layer.

[0007] Wherein, the thickness H1 of the dielectric high elastic polymer layer is ≤0.25 mm; and / or the thickness H2 of the gel layer is ≤0.5 mm; and / or the total thickness H3 of the sound insulation layer is ≤1.25 mm.

[0008] The first glass plate includes a light-transmitting substrate and a metal layer provided on the light-transmitting substrate; and / or the second glass plate includes a light-transmitting substrate and a metal layer provided on the light-transmitting substrate.

[0009] Wherein, the laminated glass further includes a positive terminal and a negative terminal, the positive terminal is connected to the first glass plate, the negative terminal is connected to the second glass plate, and the positive terminal and the negative terminal are used to connect to the power supply.

[0010] A second aspect of the present application provides a vehicle window glass assembly, which includes a power supply, a regulator, and the laminated glass provided in the first aspect of the present application, wherein the power supply electrically connects the sound insulation layer and the regulator, and the regulator is used to adjust the voltage applied to the sound insulation layer.

[0011] The vehicle window glass assembly further includes a processor and a sensor. The processor is electrically connected to the regulator and the sensor. The sensor is used to obtain environmental information. The processor is used to receive the environmental information and also to control the regulator.

[0012] A third aspect of the present application provides a vehicle, comprising a vehicle body and a vehicle window glass assembly as provided in the second aspect of the present application, wherein the vehicle window glass assembly is provided on the vehicle body.

[0013] The present application provides laminated glass, a vehicle window glass assembly, and a vehicle. By providing a sound insulation layer on the laminated glass, the surface density of the sound insulation layer can be changed by applying voltage to the sound insulation layer, thereby adjusting the sound insulation performance of the laminated glass. The sound insulation effect of the entire vehicle can be adjusted while the vehicle is driving, thereby meeting the driver's requirements for sound insulation effects under different environmental conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments of the present application will be described below.

[0015] Figure 1 This is a schematic structural diagram of the laminated glass provided in one embodiment of the present application.

[0016] Figure 2 This is a schematic structural diagram of the sound insulation layer provided in one embodiment of the present application.

[0017] Explanation of reference numerals: laminated glass 1 , sound insulation layer 10 , dielectric high elastic polymer layer 101 , gel layer 102 , first intermediate layer 111 , second intermediate layer 112 , first glass plate 121 , second glass plate 122 , positive electrode terminal 131 , negative electrode terminal 132 . DETAILED DESCRIPTION

[0018] The following are preferred implementations of the present application. It should be noted that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

[0019] Unless otherwise specified or incompatible therewith, terms and phrases used in this application shall have the following meanings:

[0020] In this application, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of the features.

[0021] In this application, "one or several" refers to any one, any two, or any two or more of the listed items. Among them, "several" refers to any two or any two or more.

[0022] In the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to connection, detachable connection, or integration. They may refer to mechanical connection or electrical connection. They may refer to direct connection or indirect connection through an intermediary. They may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0024] The following is a detailed introduction to the relevant technologies. Vehicle noise control technologies mainly use physical methods such as hollow glass, laminated glass, thickened glass, sound insulation treatment, mufflers, vibration isolation, and damping and vibration reduction. The purpose of noise reduction is achieved by consuming sound energy through the interaction between noise sound waves and acoustic materials or acoustic structures. Once these noise reduction methods are fixed, the sound isolation performance is also fixed and cannot be changed with changes in the environment.

[0025] Please refer to Figure 1 This embodiment provides a laminated glass 1, which includes a first glass plate 121, a first intermediate layer 111, a sound insulation layer 10, a second intermediate layer 112 and a second glass plate 122 stacked in sequence. The sound insulation layer 10 is used to connect to a power supply, and the sound insulation layer 10 is also used to have different surface densities under different voltages of the power supply.

[0026] Laminated glass 1 can be used as a vehicle's front windshield, side window, or rear windshield. Specifically, a first glass sheet 121 serves as the outer glass sheet of laminated glass 1. The first glass sheet 121 has a first side and a second side. The first side faces away from the first interlayer 111 and contacts the vehicle's exterior, while the second side is adjacent to the first interlayer 111. A second glass sheet 122 serves as the inner glass sheet of laminated glass 1. The second glass sheet 122 has a third side and a fourth side. The third side is adjacent to the second interlayer 112, while the fourth side faces away from the second interlayer 112 and contacts the vehicle's interior. The first and second interlayers 111, 112 can also be understood as adhesive layers. The first interlayer 111 adhesively connects the first glass sheet 121 to the sound insulation layer 10, while the second interlayer 112 adhesively connects the second glass sheet 122 to the sound insulation layer 10.

[0027] Optionally, both the first glass plate 121 and the second glass plate 122 may be transparent glass or tinted glass. The thickness of the first glass plate 121 and the second glass plate 122 ranges from 0.7 mm to 4 mm, and the visible light transmittance of the first glass plate 121 and the second glass plate 122 is greater than or equal to 2%. The total iron content (calculated as Fe2O3) of the transparent glass is less than or equal to 0.1%, even less than or equal to 0.05%, and further less than or equal to 0.01%. The total iron content (calculated as Fe2O3) of the tinted glass is 0.1% to 0.8%, preferably 0.1% to 0.5%.

[0028] Optionally, the first and second interlayers 111 and 112 may be transparent or colored thermoplastic polymer films, and the thickness of the first and second interlayers 111 and 112 may be less than or equal to 0.38 mm. For example, the thickness of the first and second interlayers 111 and 112 may be, but are not limited to, 0.10 mm, 0.15 mm, 0.20 mm, 0.25 mm, 0.30 mm, or 0.38 mm. The material of the first and second interlayers 111 and 112 may be selected from polyvinyl butyral (PVB). When the first and second interlayers 111 and 112 are transparent thermoplastic polymers, the visible light transmittance of the transparent thermoplastic polymers may be greater than or equal to 80%. For example, the visible light transmittance of the first and second interlayers 111 and 112 may be, but are not limited to, 80%, 85%, 90%, or 95%. When the first intermediate layer 111 and the second intermediate layer 112 are colored thermoplastic polymer films, the visible light transmittance of the colored thermoplastic polymer films is greater than or equal to 80%. For example, the visible light transmittance of the first intermediate layer 111 and the second intermediate layer 112 can be, but is not limited to, 80%, 85%, or 90%. The colored thermoplastic polymer film can be a gray thermoplastic polymer film, a green thermoplastic polymer film, or a blue thermoplastic polymer film.

[0029] The present application applies voltage to the sound insulation layer 10 to change the surface density of the sound insulation layer 10, thereby achieving sound damping adjustment and adjusting the sound insulation performance of the laminated glass 1. It can adjust the sound insulation effect of the entire vehicle while the vehicle is driving, and meet the driver's needs for sound insulation under different environmental conditions.

[0030] Please also refer to Figure 1 and Figure 2 The sound insulation layer 10 includes a dielectric high-elastic polymer layer 101 and gel layers 102 arranged on opposite sides of the dielectric high-elastic polymer layer 101. One gel layer 102 is arranged between the dielectric high-elastic polymer layer 101 and the first intermediate layer 111, and the other gel layer 102 is arranged between the dielectric high-elastic polymer layer 101 and the second intermediate layer 112. The gel layers 102 are used to have different surface densities under different voltages of the power supply.

[0031] In the laminated glass 1 , a first glass plate 121 , a first intermediate layer 111 , a gel layer 102 , a dielectric elastic polymer layer 101 , another gel layer 102 , a second intermediate layer 112 , and a second glass plate 122 are stacked in sequence.

[0032] The material of the dielectric elastic polymer layer 101 is selected from dielectric elastic polymers, which have the characteristics of high viscosity, high light transmittance, and incompressibility. For example, the dielectric elastic polymer layer 101 is an acrylate layer, which can also be understood as the matrix of the dielectric elastic polymer layer 101 being acrylate.

[0033] Specifically, a DC voltage is applied to the dielectric elastic polymer layer 101. This generates a polarization electric field E = U / h across the thickness of the dielectric elastic polymer layer 101, where U is the applied voltage and h is the gap between the first glass plate 121 and the second glass plate 122. Under the influence of the polarization electric field, the internal dipoles of the dielectric elastic polymer layer 101 change from a disordered state to an ordered state. The dielectric elastic polymer layer 101 itself changes due to the Maxwell stress S = eE2 / 2, where e is the dielectric constant of the dielectric elastic polymer. This changes the overall stiffness and surface density of the dielectric elastic polymer layer 101. Since the sound insulation performance of polymer materials is primarily influenced by their surface density and stiffness, the sound insulation performance of the dielectric elastic polymer layer 101 can be adjusted by varying the applied voltage, thereby adjusting the sound insulation performance of the laminated glass 1.

[0034] Gel layer 102 is made of a gel material with high light transmittance and slight elasticity, which is used to maintain stable contact with first intermediate layer 111 and second intermediate layer 112. The high viscosity of dielectric high-elastic polymer layer 101 allows gel layer 102 to be evenly attached to the surface thereof, forming a multi-layered sound insulation layer 10 structure.

[0035] The thickness of the dielectric elastic polymer layer 101 is less than that of the gel layer 102, thereby ensuring that the gel layer 102 can protect the dielectric elastic polymer layer 101 and improving the stability of the laminated glass 1. The thickness H1 of the dielectric elastic polymer layer 101 is ≤ 0.25 mm, and specific examples include H1 of 0.25 mm, 0.20 mm, 0.15 mm, 0.10 mm, etc., preferably H1 ≤ 0.20 mm, and more preferably H1 ≤ 0.15 mm. The thickness H2 of the gel layer 102 is ≤ 0.5 mm, and specific examples include H2 of 0.5 mm, 0.4 mm, 0.3 mm, 0.2 mm, etc., preferably H2 ≤ 0.4 mm, and more preferably H2 ≤ 0.3 mm. The total thickness H3 of the sound insulation layer 10 is ≤ 1.25 mm. Specific examples of H3 include 1.25 mm, 1 mm, 0.8 mm, 0.6 mm, etc. Preferably, H3 is ≤ 1 mm, and more preferably, H3 is ≤ 0.8 mm. The total thickness of the sound insulation layer 10 is the sum of the thicknesses of the two gel layers 102 and the dielectric high-elastic polymer layer 101.

[0036] In summary, the above-mentioned limitation on the total thickness of the dielectric elastic polymer layer 101, the gel layer 102, and the sound insulation layer 10 not only ensures that the dielectric elastic polymer layer 101 has sufficient thickness to adjust the sound insulation performance of the laminated glass 1 under voltage changes, but also facilitates the gel layer 102 to protect the dielectric elastic polymer layer 101. It also avoids the total thickness of the sound insulation layer 10 being too large, which would occupy too much space in the laminated glass 1 and be unfavorable for the arrangement of other film layers.

[0037] The first glass sheet 121 of the present application comprises a light-transmitting substrate and a metal layer disposed on the light-transmitting substrate; and / or the second glass sheet 122 comprises a light-transmitting substrate and a metal layer disposed on the light-transmitting substrate. The first glass sheet 121 and / or the second glass sheet 122 can also be understood as coated float glass. The metal layer is electrically conductive, allowing the first glass sheet 121 and / or the second glass sheet 122 to be connected to a power source to generate an electric field. This voltage is then used to adjust the sound insulation layer 10, thereby adjusting the sound damping and thus the sound insulation performance of the laminated glass 1.

[0038] The laminated glass 1 also includes a positive terminal 131 and a negative terminal 132. The positive terminal 131 is connected to the first glass plate 121, and the negative terminal 132 is connected to the second glass plate 122. The positive and negative terminals 131 and 132 are used to connect to a power source. For example, the positive terminal 131 is connected to the metal layer of the first glass plate 121, and the negative terminal 132 is connected to the metal layer of the second glass plate 122. Both the positive and negative terminals 131 and 132 are electrically connected to a power source. The first intermediate layer 111, the second intermediate layer 112, and the gel layer 102 are all electrically conductive. The power source, through terminals connected to the first and second glass plates 121 and 122, can adjust the voltage applied to the sound insulation layer 10 to change the surface density of the sound insulation layer 10, thereby adjusting the sound insulation performance of the laminated glass 1.

[0039] The present application also provides a vehicle window glass assembly, which includes a power supply, a regulator, and the laminated glass provided above in the present application. The power supply electrically connects the sound insulation layer and the regulator, and the regulator is used to adjust the voltage applied to the sound insulation layer.

[0040] The sound insulation performance of laminated glass can be adjusted manually or automatically. Manual adjustment requires manually adjusting the regulator to change the voltage applied to the sound insulation layer by the power supply, thereby adjusting the sound insulation performance of the laminated glass.

[0041] For automatic adjustment, the window glass assembly also includes a processor and a sensor. The processor is electrically connected to the regulator and the sensor. The sensor is used to obtain environmental information, and the processor is used to receive this environmental information and control the regulator. The processor can also be understood as the vehicle's ECU. The sensor detects the current driving environment and obtains environmental information. The sensor transmits this environmental information to the processor, which, based on this environmental information, controls the regulator to automatically adjust the voltage applied by the power supply to the sound insulation layer, thereby automatically adjusting the sound insulation performance of the laminated glass.

[0042] In summary, this application provides two methods: manual adjustment and automatic adjustment to achieve voltage adjustment, thereby adjusting the sound insulation performance of laminated glass, meeting the need to adjust the sound insulation effect of laminated glass as the environment changes. It is simple and convenient and applicable to many scenarios.

[0043] The present application also provides a vehicle, comprising a vehicle body and a vehicle window glass assembly as provided above in the present application, wherein the vehicle window glass assembly is arranged on the vehicle body.

[0044] When the vehicle window glass assembly is mounted on a vehicle body, it is preferably used as the front windshield of the vehicle. However, the vehicle window glass assembly can also be used as the rear windshield or side windows, thereby providing more display scene applications for the vehicle.

[0045] The vehicle of the present application adopts the window glass assembly provided above, and by arranging a sound insulation layer on the laminated glass, the surface density of the sound insulation layer can be changed by applying voltage to the sound insulation layer, thereby adjusting the sound insulation performance of the laminated glass. The sound insulation effect of the entire vehicle can be adjusted during driving, meeting the driver's requirements for sound insulation effects under different environmental conditions.

[0046] The above is a detailed introduction to the contents provided in the implementation mode of the present application. This article explains and illustrates the principles and implementation modes of the present application. The above explanation is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation mode and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A laminated glass, characterized in that: The laminated glass includes a first glass plate, a first intermediate layer, a sound insulation layer, a second intermediate layer and a second glass plate stacked in sequence. The sound insulation layer is used to connect to a power supply and is also used to have different surface densities under different voltages of the power supply.

2. The laminated glass according to claim 1, wherein: The sound insulation layer includes a dielectric high-elastic polymer layer and gel layers arranged on opposite sides of the dielectric high-elastic polymer layer, one gel layer is arranged between the dielectric high-elastic polymer layer and the first intermediate layer, and the other gel layer is arranged between the dielectric high-elastic polymer layer and the second intermediate layer. The gel layers are used to have different surface densities under different voltages of the power supply.

3. The laminated glass according to claim 2, wherein: The dielectric elastic polymer layer is an acrylic ester layer.

4. The laminated glass according to claim 2, wherein: The thickness of the dielectric elastic polymer layer is smaller than that of the gel layer.

5. The laminated glass according to claim 4, wherein: The thickness H1 of the dielectric elastic polymer layer is ≤0.25 mm; and / or the thickness H2 of the gel layer is ≤0.5 mm; and / or the total thickness H3 of the sound insulation layer is ≤1.25 mm.

6. The laminated glass according to claim 1, wherein: The first glass plate includes a light-transmitting substrate and a metal layer provided on the light-transmitting substrate; and / or the second glass plate includes a light-transmitting substrate and a metal layer provided on the light-transmitting substrate.

7. The laminated glass according to claim 6, wherein: The laminated glass further includes a positive terminal and a negative terminal. The positive terminal is connected to the first glass plate, and the negative terminal is connected to the second glass plate. The positive terminal and the negative terminal are used to connect to the power supply.

8. A vehicle window glass assembly, characterized in that: The vehicle window glass assembly includes a power supply, a regulator, and the laminated glass according to any one of claims 1 to 7, wherein the power supply electrically connects the sound insulation layer and the regulator, and the regulator is used to adjust the voltage applied to the sound insulation layer.

9. The vehicle window glass assembly according to claim 8, wherein: The vehicle window glass assembly further includes a processor and a sensor. The processor is electrically connected to the regulator and the sensor. The sensor is used to obtain environmental information. The processor is used to receive the environmental information and also to control the regulator.

10. A vehicle, characterized in that: The vehicle includes a vehicle body and a vehicle window glass assembly according to any one of claims 8 to 9, wherein the vehicle window glass assembly is arranged on the vehicle body.

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