CN217197260U - Automobile windshield and vehicle - Google Patents

Automobile windshield and vehicle Download PDF

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Publication number
CN217197260U
CN217197260U CN202220648411.1U CN202220648411U CN217197260U CN 217197260 U CN217197260 U CN 217197260U CN 202220648411 U CN202220648411 U CN 202220648411U CN 217197260 U CN217197260 U CN 217197260U
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China
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transparent conductive
conductive film
glass
adhesive layer
layer glass
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CN202220648411.1U
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Chinese (zh)
Inventor
冯汝斌
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Guangzhou Xiaopeng Motors Technology Co Ltd
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Guangzhou Xiaopeng Autopilot Technology Co Ltd
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Abstract

The application provides an automobile windshield and a vehicle, wherein the automobile windshield comprises a glass substrate and a transparent conductive film, the glass substrate comprises outer-layer glass, an adhesive layer and inner-layer glass which are sequentially stacked, and the adhesive layer is bonded between the outer-layer glass and the inner-layer glass; the transparent conductive film is superposed on the surface of the inner layer glass, which is far away from the adhesive layer, and is fixedly connected with the inner layer glass. According to the automobile windshield provided by the application, the transparent conductive film is arranged on the inner surface of the glass substrate and can be used as a heating element for heating so as to achieve the aims of defogging and defrosting; the transparent conductive film has high light transmittance, and no heating element visible to naked eyes is arranged inside the transparent conductive film, so that the imaging quality of the vehicle camera is prevented from being influenced; meanwhile, the transparent conductive film is not in direct contact with the adhesive layer, so that the phenomenon that the camera is blurred due to the fact that the adhesive layer is melted, and the machine or a user is influenced to recognize and judge the target object is avoided.

Description

Automobile windshield and vehicle
Technical Field
The application relates to the technical field of glass, in particular to an automobile windshield and a vehicle.
Background
The automotive industry faces various problems from the nature in ensuring the clarity of the windowed area of the forward-looking camera of the driving system. One of them is the problem of moisture condensation of the automobile windshield caused by the temperature difference between the inside and the outside of the automobile. The condensation of moisture on the windshield of the automobile generates a phenomenon called window fogging, which significantly and severely affects the visibility of the camera, so that the imaging effect of the camera is severely reduced. The related art provides a technical scheme that a heating element is added in a visual field windowing area of a front-view camera of an automobile to heat a windshield, so that the glass in the visual field area is prevented from being fogged or frosted. The heating element may be a silver paste heating wire or an enameled wire heating wire, however, the method of using the heating wire to raise the temperature for defogging and defrosting has a lot of problems and disadvantages.
For example, the heater strip can influence the visuality, and with regard to silver thick liquid heater strip, heating element silk screen printing width is wide to reach 0.3mm ~ 0.4mm, can shelter from the camera, forms a black line on the image, and heater strip reflectivity is high, and high bright light sources such as headlight in the front of the vehicle or street lamp can form segmentation phenomenon on the camera formation of image, influences the discernment and the judgement of machine or user to the target object. The heating element of the enameled wire heating wire is a copper alloy enameled wire, the surface of the enameled wire heating wire is coated with matting paint, the diameter of the enameled wire heating wire can be as small as 0.12mm, although obvious shading black lines are solved, the reflectivity of the enameled wire heating wire is not low after the matting paint is coated on the surface of the enameled wire heating wire, high-light wiredrawing or segmentation phenomena can be formed on camera imaging by high-light sources such as headlights or street lamps in front of a vehicle, the heating wire is arranged in a windshield interlayer, when the heating function is started, interlayer glue can be melted, images of the camera are blurred, and recognition and judgment of a machine or a user on a target object are affected.
SUMMERY OF THE UTILITY MODEL
The present application aims to provide an automobile windshield and a vehicle to solve or improve the above problems. The present application achieves the above object by the following technical solutions.
In a first aspect, the present application provides an automotive windshield comprising: the glass substrate comprises outer layer glass, an adhesive layer and inner layer glass which are sequentially stacked, wherein the adhesive layer is bonded between the outer layer glass and the inner layer glass; and the transparent conducting film is superposed on the surface of the inner layer glass, which is deviated from the adhesive layer, and is fixedly connected with the inner layer glass.
In one embodiment, the automobile windshield further comprises an antireflection film, and the antireflection film is stacked on the transparent conductive film and fixedly connected with the transparent conductive film.
In one embodiment, an antireflective coating is laminated to the surface of the transparent conductive film facing away from the inner glass.
In one embodiment, an antireflective coating is laminated between the inner glass and the transparent conductive film.
In one embodiment, the antireflective film has a thickness of 200nm to 1000 nm.
In one embodiment, the transparent conductive film has a thickness of 150nm to 1000 nm.
In one embodiment, the transparent conductive film is an ITO film.
In one embodiment, the transparent conductive film has a refractive index of 1.8 to 2.2.
In one embodiment, the thickness of the outer layer glass is 1.9mm to 2.3mm, the thickness of the adhesive layer is 0.55mm to 0.95mm, and the thickness of the inner layer glass is 1.9mm to 2.3 mm.
In a second aspect, embodiments of the present application provide a vehicle, including a vehicle body and the automobile windshield of the first aspect, the automobile windshield being mounted to the vehicle body.
According to the automobile windshield provided by the embodiment of the application, the transparent conductive film is arranged on the inner surface of the glass substrate and can be used as a heating element for heating so as to achieve the aims of defogging and defrosting, compared with a heating wire, the transparent conductive film is high in light transmittance, and no heating element visible to naked eyes exists inside the transparent conductive film, so that the imaging quality of a vehicle camera is prevented from being influenced; meanwhile, the transparent conducting film is attached to the inner surface of the glass substrate, so that the transparent conducting film can be effectively protected, and the transparent conducting film is not in direct contact with the adhesive layer, so that the phenomenon that the camera is blurred in imaging caused by melting of the adhesive layer, and the machine or a user can recognize and judge the target object is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a cross-sectional view of an automotive windshield according to an embodiment of the present application.
FIG. 2 is a cross-sectional view of an automotive windshield according to another embodiment of the present application.
FIG. 3 is a cross-sectional view of an automotive windshield according to yet another embodiment of the present application.
Fig. 4 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, an embodiment of the present application provides an automotive windshield 100, including a glass substrate 110 and a transparent conductive film 120, where the glass substrate 110 includes an outer layer glass 111, an adhesive layer 112, and an inner layer glass 113, which are sequentially stacked, and the adhesive layer 112 is adhered between the outer layer glass 111 and the inner layer glass 113; the transparent conductive film 120 is stacked on the surface of the inner glass 113 away from the adhesive layer 112, and is fixedly connected with the inner glass 113.
The transparent conductive film 120 is used to receive electric energy to raise the temperature of the windshield 100 of the vehicle. For example, after receiving a voltage, a current flowing from a high potential to a low potential is generated in the transparent conductive film 120, and since no active circuit exists in the transparent conductive film 120, the power is consumed by raising the temperature of the transparent conductive film 120 to achieve a balance. The increased heat energy is uniformly conducted to the inner layer glass 113, conducted to the adhesive layer 112 through the inner layer glass 113, and conducted to the outer layer glass 111 through the adhesive layer 112, so as to achieve the effect of heating the automobile windshield 100, and the automobile windshield 100 can achieve the effects of defogging and defrosting.
According to the windshield 100 of the automobile provided by the embodiment of the application, the transparent conductive film 120 is arranged on the inner surface of the glass substrate 110, and can be used as a heating element for heating so as to achieve the purposes of defogging and defrosting. The transparent conductive film 120 has high light transmittance, and no heating element visible to naked eyes is arranged inside the transparent conductive film, so that the imaging quality of a vehicle camera is prevented from being influenced; meanwhile, the transparent conductive film 120 is attached to the surface of the glass substrate 110 facing the interior of the automobile, so that the transparent conductive film 120 can be effectively protected; and the transparent conductive film does not directly contact the adhesive layer 112, so that the problem that the camera imaging is fuzzy due to the melting of the adhesive layer 112, and the recognition and judgment of a machine or a user on a target object are influenced is avoided.
In the present embodiment, the outer layer glass 111 is located on the side of the automobile windshield 100 close to the automobile wiper, and the inner layer glass 113 is located on the side of the automobile windshield 100 facing the inside of the vehicle. The outer layer glass 111 and the inner layer glass 113 may be parallel to each other and have a uniform shape. The outer layer of glass 111 and the inner layer of glass 113 may be any material having suitable transparency and sufficient strength to pass automotive safety regulations, such as high strength pyrex, plastic, or a composite of glass and plastic, and the like. The refractive index of the outer layer glass 111 and the inner layer glass 113 can be controlled within a range of 1.4 to 1.6, for example, the refractive index of the outer layer glass 111 and the inner layer glass 113 can be 1.4, 1.5, 1.55, or 1.6, etc. to reduce the dispersion.
The adhesive layer 112 is bonded between the outer layer glass 111 and the inner layer glass 113, so that the strength of the automobile windshield 100 is improved, and the sound insulation effect is improved. The adhesive layer 112 may be made of a transparent material with low thermal resistance, such as PVC transparent glass adhesive, which can greatly reduce heat loss and improve the defogging and defrosting effects of the automobile windshield 100.
The refractive index of the adhesive layer 112 may be controlled within a range of 1.4-1.6, for example, the refractive index of the adhesive layer 112 may be 1.4, 1.45, 1.5, or 1.6, etc. to reduce the dispersion. As an example, the refractive indexes of the outer layer glass 111, the adhesive layer 112 and the inner layer glass 113 are equal, for example, the refractive indexes of the outer layer glass 111, the adhesive layer 112 and the inner layer glass 113 are all 1.5.
The glass substrate 110 that this application embodiment provided adopts outer glass 111, viscose layer 112 and inlayer glass 113 to constitute sandwich structure, can improve car windshield 100's sound insulation, has reduced introducing into of car external noise, has improved the travelling comfort that whole car was taken.
In some embodiments, the thickness of the outer layer of glass 111 may be 1.9mm to 2.3mm, for example, the thickness of the outer layer of glass 111 is equal to 1.9mm, 2.0mm, 2.1mm, or 2.3mm, and so on. The thickness of the inner layer glass 113 may be 1.9mm to 2.3mm, for example, the thickness of the inner layer glass 113 is equal to 1.9mm, 2.1mm, or 2.3mm, and so on. The thickness of the adhesive layer 112 may be 0.55mm to 0.95mm, for example, the thickness of the adhesive layer 112 is equal to 0.55mm, 0.7mm, or 0.95mm, etc. By controlling the thicknesses of the outer layer glass 111, the adhesive layer 112, and the inner layer glass 113 within the above ranges, the glass substrate 110 can be ensured to have sufficient structural strength and to have good light transmittance.
In this embodiment, the thickness of the outer layer glass 111 and the thickness of the inner layer glass 113 may be equal or unequal. As an example, the thickness of the outer layer of glass 111 is equal to 2.1mm, the thickness of the adhesive layer 112 is equal to 0.7mm, and the thickness of the inner layer of glass 113 is equal to 2.1 mm.
In some embodiments, the transparent conductive film 120 may cover the entire surface of the inner glass 113, and at this time, the shape and size of the transparent conductive film 120 are the same as those of the inner glass 113, and the heat generated after the power is turned on is more uniform, so that the overall defogging and defrosting effects of the automobile windshield 100 are better.
In other embodiments, the transparent conductive film 120 may cover a portion of the surface of the inner layer glass 113. For example, the transparent conductive film 120 is only attached to the inner glass 113 corresponding to the view area of the vehicle front camera, so that the cost can be saved; alternatively, the transparent conductive film 120 is attached to the surface of the inner glass 113 in a strip structure disposed at intervals, and the transparent conductive film 120 is attached to the surface of the inner glass 113 in a ring structure sequentially sleeved and gradually enlarged in size.
In some embodiments, the thickness of the transparent conductive film 120 may be 150nm to 300nm, for example, the thickness of the transparent conductive film 120 is equal to 150nm, 200nm, 250nm, or 300nm, etc., so as to generate sufficient heat energy for heating. The refractive index of the transparent conductive film 120 can be controlled within a range of 1.8-2.2, for example, the refractive index of the transparent conductive film 120 is equal to 1.8, 2.0, or 2.2, etc. to reduce the dispersion.
The transparent conductive film 120 may be an ITO (tin-doped indium oxide) film, an AZO (aluminum-doped zinc oxide) film, or an FTO (fluorine-doped tin oxide) film, or the like. The transparent conductive film 120 may be formed on the surface of the inner glass 113 by spraying, radio frequency sputtering, magnetron sputtering, or the like; alternatively, the transparent conductive film 120 may be directly attached to the surface of the inner glass 113.
As an example, the transparent conductive film 120 is an ITO film. The ITO film is an indium tin oxide conducting layer, has the performances of electrical conduction and optical transparency, and is a transparent conducting material with excellent performance. The ITO film can be effectively heated after being electrified, so that the aims of demisting and defrosting are fulfilled; meanwhile, the ITO film has good light transmittance, and has strong adhesive force with the glass substrate 110, so that the risk of falling off of the conductive layer is reduced; and the automobile windshield also has good wear resistance and chemical stability, and the service life of the automobile windshield 100 is prolonged.
Referring to fig. 2, in some embodiments, the automobile windshield 100 further includes an Anti-Reflection Glass (AR) film 130, and the AR film 130 is stacked on the surface of the transparent conductive film 120 and is fixedly connected to the transparent conductive film 120.
The anti-reflection film 130 can effectively increase the light transmittance and anti-reflection capability of the automobile windshield 100, improve the imaging contrast of the automobile front-view camera, and increase the reliability of the machine for identifying the target object. In addition, the antireflection film 130 and the transparent conductive film 120 are arranged on the same side of the inner layer glass 113, that is, the antireflection film 130 and the transparent conductive film 120 are both positioned on the side of the glass substrate 110 facing the inside of the vehicle, so that the antireflection film 130 is far away from the vehicle windscreen wiper, and damage caused by repeated friction with the vehicle windscreen wiper is avoided; meanwhile, because the antireflection film 130 and the transparent conductive film 120 are arranged on the same side of the inner glass 113, the glass substrate 110 is prevented from being coated twice by turning in the production process, the production efficiency and the mass production are improved, and the cost of manpower and capital is saved.
In this embodiment, the anti-reflection film 130 may be formed by deposition through methods such as radio frequency sputtering or magnetron sputtering; alternatively, the antireflection film 130 may be directly attached to the surface of the inner glass 113 or the transparent conductive film 120 after the outer fabrication. The antireflection film 130 may be a multilayer composite optical film that uses low refractive index and high refractive index materials to alternately form a stack, and utilizes interference effects to superpose and attenuate reflected light rays, thereby increasing the intensity of transmitted light. The highest peak value of the visible light transmittance can reach 99%, and the average visible light transmittance exceeds 95%; the average reflectivity is lower than 5 percent and can reach 0.5 percent at most. Meanwhile, the transparent conductive film has good thermal conductivity, and can effectively utilize heat generated by the transparent conductive film 120 to achieve defogging and defrosting effects.
In some embodiments, the thickness of the anti-reflection coating 130 may be 200nm to 1000nm, for example, the thickness of the anti-reflection coating 130 is equal to 200nm, 500nm, 800nm, 1000nm, or the like. Therefore, the anti-reflection antireflection film 130 can have sufficient structural strength and good light transmittance.
In some embodiments, antireflective film 130 is laminated to the surface of transparent conductive film 120 facing away from inner glass 113. That is, the transparent conductive film 120 is stacked between the glass substrate 110 and the anti-reflection film 130, at this time, the transparent conductive film 120 is in direct contact with both the glass substrate 110 and the anti-reflection film 130, and when the heat energy generated by the transparent conductive film 120 after being electrified is transferred to the outer layer glass 111 or the anti-reflection film 130, the heat conduction efficiency is higher, and the defogging and defrosting speed is higher.
Referring to FIG. 3, in other embodiments, an anti-reflective antireflection film 130 is stacked between the inner glass 113 and the transparent conductive film 120. That is, the transparent conductive film 120 is disposed on the innermost side of the automobile windshield 100 near the inside of the automobile, and the power-on circuit of the transparent conductive film 120 can be easily provided.
According to the automobile windshield 100 provided by the embodiment of the application, the transparent conductive film 120 is arranged on the inner surface of the glass substrate 110, and heat energy generated after electrification is transferred to the glass substrate 110, so that the aims of defogging and defrosting can be effectively fulfilled; the transparent conductive film 120 has high light transmittance and no heating element visible to naked eyes, so that the influence of the traditional demisting and defrosting heating element on the image quality of the front-view camera of the automobile is avoided; and an anti-reflection antireflection film 130 is added on the basis of the transparent conductive film 120, so that the reflectivity of the glass surface is reduced, the imaging contrast of the automobile front-view camera is improved, and the reliability of the machine for identifying the target object is improved.
Referring to fig. 4, the embodiment of the present application further provides a vehicle 200, which includes a vehicle body 210 and an automobile windshield 100, wherein the automobile windshield 100 is mounted on the vehicle body 210. The automobile windshield 100 may be an automobile front windshield, an automobile rear windshield, an automobile side windshield, or the like, and the embodiment of the present application takes the automobile windshield 100 as the automobile front windshield for illustration.
In the vehicle 200 provided in the embodiment of the present application, the transparent conductive film 120 is disposed on the inner surface of the glass substrate 110, and can be used as a heating element for heating to achieve the purpose of defogging and defrosting; compared with a heating wire, the transparent conductive film 120 is high in light transmittance, heating elements visible to naked eyes are not arranged inside, and the imaging quality of a vehicle camera is prevented from being influenced; meanwhile, the transparent conductive film 120 is attached to the inner surface of the glass substrate, so that the transparent conductive film 120 can be effectively protected; and the transparent conductive film 120 does not directly contact the adhesive layer 112, so that the camera imaging blurring caused by the melting of the adhesive layer 112 is avoided, and the recognition and judgment of a machine or a user on a target object are influenced.
For detailed features of the automobile windshield 100, reference is made to the description of the above embodiments. Since the vehicle 200 includes the automobile windshield 100 in the above embodiment, all the advantages of the automobile windshield 100 are provided, and will not be described in detail herein.
The above embodiments are only for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. An automotive windshield, comprising:
the glass substrate comprises outer layer glass, an adhesive layer and inner layer glass which are sequentially stacked, wherein the adhesive layer is bonded between the outer layer glass and the inner layer glass; and
and the transparent conductive film is superposed on the surface of the inner layer glass, which is deviated from the adhesive layer, and is fixedly connected with the inner layer glass.
2. The automobile windshield according to claim 1, further comprising an anti-reflection antireflection film, wherein the anti-reflection antireflection film is stacked on the transparent conductive film and fixedly connected with the transparent conductive film.
3. The automotive windshield according to claim 2, wherein the antireflection film is laminated on the surface of the transparent conductive film facing away from the inner glass.
4. The automotive windshield according to claim 2, wherein the antireflective coating is laminated between the inner glass and the transparent conductive film.
5. The automobile windshield according to claim 2, wherein the thickness of the antireflection film is 200nm to 1000 nm.
6. The automotive windshield according to any one of claims 1-5, wherein the transparent conductive film has a thickness of 150nm to 1000 nm.
7. The automotive windshield according to any one of claims 1-5, wherein the transparent conductive film is an ITO film.
8. The automobile windshield according to any one of claims 1-5, wherein the transparent conductive film has a refractive index of 1.8-2.2.
9. The automobile windshield according to any one of claims 1-5, wherein the outer layer glass has a thickness of 1.9mm to 2.3mm, the adhesive layer has a thickness of 0.55mm to 0.95mm, and the inner layer glass has a thickness of 1.9mm to 2.3 mm.
10. A vehicle comprising a body and an automotive windshield according to any one of claims 1-9 mounted to the body.
CN202220648411.1U 2022-03-23 2022-03-23 Automobile windshield and vehicle Active CN217197260U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220648411.1U CN217197260U (en) 2022-03-23 2022-03-23 Automobile windshield and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220648411.1U CN217197260U (en) 2022-03-23 2022-03-23 Automobile windshield and vehicle

Publications (1)

Publication Number Publication Date
CN217197260U true CN217197260U (en) 2022-08-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220648411.1U Active CN217197260U (en) 2022-03-23 2022-03-23 Automobile windshield and vehicle

Country Status (1)

Country Link
CN (1) CN217197260U (en)

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Effective date of registration: 20240307

Address after: 510000 No.8 Songgang street, Cencun, Tianhe District, Guangzhou City, Guangdong Province

Patentee after: GUANGZHOU XIAOPENG MOTORS TECHNOLOGY Co.,Ltd.

Country or region after: China

Address before: Room 46, room 406, No.1, Yichuang street, Zhongxin knowledge city, Huangpu District, Guangzhou City, Guangdong Province

Patentee before: Guangzhou Xiaopeng Automatic Driving Technology Co.,Ltd.

Country or region before: China