CN219856293U

CN219856293U - Windshield glass

Info

Publication number: CN219856293U
Application number: CN202320907721.5U
Authority: CN
Inventors: 王典洪
Original assignee: Fuyao Group Shanghai Automotive Glass Co Ltd
Current assignee: Fuyao Group Shanghai Automotive Glass Co Ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-10-20
Anticipated expiration: 2033-04-20

Abstract

The utility model discloses a windshield, which comprises an outer glass plate, an inner glass plate, a composite heat insulation layer, a sound insulation layer and a heating layer, wherein the outer glass plate is arranged on the inner glass plate; the outer glass plate, the composite heat insulation layer, the sound insulation layer, the heating layer and the inner glass plate are stacked; the thickness of the composite heat insulation layer is smaller than or equal to 0.5mm, the thickness of the sound insulation layer is smaller than or equal to 0.8mm, heating wires are arranged in the heating layer, and the diameter of the heating wires is smaller than or equal to 0.04mm. The windshield of the utility model has the functions of defrosting and defogging, heat reflection and sound insulation.

Description

Windshield glass

Technical Field

The utility model relates to the technical field of glass, in particular to a windshield.

Background

The prior vehicle windshield generally adopts laminated glass, specifically, the outer glass and the inner glass are bonded through an adhesive layer and are matched with a high-pressure process to form the laminated glass. In order to improve various properties of the laminated glass, a functional layer such as a sound insulating layer or a heat insulating layer is interposed between the outer glass sheet and the inner glass sheet. In order to achieve light weight and to ensure light transmittance of the glass, the number of functional layers sandwiched between the outer glass and the inner glass is limited, and thus the conventional windshield has a single function.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: provided is a windshield, which is capable of enriching the functions of the windshield itself and ensuring the weight reduction of the windshield.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a windshield comprises an outer glass plate, an inner glass plate, a composite heat insulation layer, a sound insulation layer and a heating layer;

the outer glass plate, the composite heat insulation layer, the sound insulation layer, the heating layer and the inner glass plate are stacked;

the thickness of the composite heat insulation layer is smaller than or equal to 0.5mm, the thickness of the sound insulation layer is smaller than or equal to 0.8mm, heating wires are arranged in the heating layer, and the diameter of the heating wires is smaller than or equal to 0.04mm.

Further, the composite thermal insulation layer comprises a heat reflection layer and a first bonding layer;

the outer sheet glass plate, the first adhesive layer, the heat reflection layer, and the soundproof layer are laminated.

Further, the ratio of the thickness of the heat reflection layer to the first adhesive layer is 0.13 to 0.18.

Further, the heat reflection layer is laminated with a coating layer.

Further, the sound insulation layer comprises a sound insulation medium and a second adhesive layer;

the sound insulation medium is arranged between the two second bonding layers in a clamped mode.

Further, the heating layer is disposed on one side of the sound insulation layer and is integrated with the sound insulation layer.

Further, the diameter of the heating wire is 0.02 mm-0.03 mm.

Further, copper bus bars are welded on two sides of the heating layer in the width direction respectively, and a break point is arranged at the middle point of each copper bus bar on each side, which is located in the length direction of the heating layer.

Further, the copper bus bars are distributed along the edges of the outer sheet glass plate or the inner sheet glass plate.

Further, the copper bus is welded with a heating joint so that the heating layer is electrically connected with a power supply through the copper bus and the heating joint.

The utility model has the beneficial effects that: the thicknesses of the composite heat insulation layer, the sound insulation layer and the heating layer are limited, and the composite heat insulation layer, the sound insulation layer and the heating layer are pressed by combining an initial pressing process and a high-pressure process, so that the manufactured windshield can be light. In the utility model, the composite heat insulation layer, the sound insulation layer and the heating layer are arranged between the outer glass plate and the inner glass plate, so that the manufactured laminated glass has three functions of heat insulation, sound insulation and heating.

Drawings

FIG. 1 is a cross-sectional view of a windshield of the present utility model;

FIG. 2 is a cross-sectional view of a sound barrier layer of the present utility model;

fig. 3 is a schematic view of a windshield according to the present utility model.

Description of the reference numerals:

1. an outer sheet glass plate;

2. an inner glass plate;

3. a composite heat insulation layer; 31. a heat reflection layer; 32. a first adhesive layer;

4. a sound insulation layer; 41. a sound insulating medium; 42. a second adhesive layer;

5. a heating layer; 6. copper bus.

Detailed Description

In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

The prior front windshield generally adopts laminated glass, specifically, the outer glass and the inner glass are bonded through an adhesive layer and are matched with a high-pressure process to form the laminated glass. In order to improve various properties of the laminated glass, a functional layer such as a sound insulating layer or a heat insulating layer is interposed between the outer glass sheet and the inner glass sheet. In order to achieve light weight and to ensure light transmittance of the glass, the number of functional layers sandwiched between the outer glass and the inner glass is limited, so that the conventional front windshield has a single function.

The windshields of the vehicle are classified into front windshields and rear windshields according to the fitting positions. In the running process of the vehicle, the windshield of the vehicle occupies a relatively large total surface area of the vehicle, particularly the front windshield, so that the heat of sunlight can be transmitted into the vehicle through the front windshield, the temperature in the vehicle can be greatly increased after the vehicle is exposed to the sun for a period of time in high-temperature weather, in addition, in high-temperature weather, the vehicle runs for a long time in the sun, and if the heat entering the vehicle is excessive, the heat consumed by the air conditioner for outputting cold air can also be increased; under the condition that the current windshield area ratio is larger, noise and wind noise generated by airflow impact are increased in the running process of the vehicle, and the noise is particularly obvious on large vehicles such as large buses and trucks, because the included angle between the front windshield of the large vehicles and the running direction of the vehicle is almost vertical, and the airflow impact born by the vehicle is larger at the moment. In addition, when the windshield is exposed to hot and cold air with a high ambient humidity, the surface tends to fog, and even in a low-temperature environment, the windshield may be frosted. When a vehicle is equipped with a windshield having only heat insulation, sound insulation or heating functions, the use environment of the vehicle is limited to some extent, and thus the diversified demands of users cannot be satisfied.

Referring to fig. 1 to 3, the present utility model provides a windshield, comprising an outer glass plate 1, an inner glass plate 2, a composite heat insulation layer 3, a sound insulation layer 4 and a heating layer 5; the outer glass plate 1, the composite heat insulation layer 3, the sound insulation layer 4, the heating layer 5 and the inner glass plate 2 are laminated; the thickness of the composite heat insulation layer 3 is smaller than or equal to 0.5mm, the thickness of the sound insulation layer 4 is smaller than or equal to 0.8mm, the heating layer 5 is internally provided with heating wires, and the diameter of the heating wires is smaller than or equal to 0.04mm. Preferably, the thickness of the composite insulation layer 3 may be 0.41mm, 0.42mm, 0.43mm, 0.44mm, 0.45mm, 0.46mm, 0.47mm, 0.48mm, 0.49mm or 0.50mm; the thickness of the sound-insulating layer 4 may be 0.75mm, 0.76mm, 0.77mm, 0.78mm, 0.79mm or 0.80mm; the diameter of the heating wire may be 0.01mm, 0.02mm or 0.03mm.

The thicknesses of the composite heat insulation layer 3, the sound insulation layer 4 and the heating layer 5 are limited, and the laminated glass is pressed by adopting the steps of first pressing and then high pressing, so that the weight of the manufactured windshield is reduced. When the laminated glass is used as a front windshield, the diameter of the heating wire is smaller than or equal to 0.04mm in order to avoid the influence of the heating wire on the driver, and the diameter of the heating wire is within the numerical range, so that the function of hiding the laminated glass is realized, the weight of the heating layer 5 is reduced to a certain extent, and the weight of the windshield is reduced. In the utility model, a composite heat insulation layer 3, a sound insulation layer 4 and a heating layer 5 are arranged between an outer glass plate 1 and an inner glass plate 2, so that the manufactured laminated glass has three functions of heat insulation, sound insulation and heating. The main noise of the vehicle in the running process is derived from noise, wind noise and external noise generated by the impact of air flow on the front windshield, and when the laminated glass is used as the front windshield, the laminated glass has the effects of absorbing and blocking the noise, so that the sound insulation performance of the vehicle is improved; when the temperature of the vehicle is raised after the vehicle is exposed to sunlight in high-temperature weather, the windshield is used for blocking the heat of the sunlight, so that the heat entering the vehicle is reduced, and the heat insulation effect is achieved; in addition, the heating function of the heating layer 5 can defrost and defog the laminated glass rapidly, so that the sight of a driver is prevented from being influenced.

Further, the composite thermal insulation layer 3 includes a heat reflection layer 31 and a first adhesive layer 32; the outer glass plate 1, the first adhesive layer 32, the heat reflection layer 31, and the soundproof layer 4 are laminated.

Further, the ratio of the thickness of the heat reflection layer 31 to that of the first adhesive layer 32 is 0.13 to 0.18. Alternatively, the ratio of the thickness of the heat reflecting layer 31 to the first adhesive layer 32 may be 0.13, 0.14, 0.15, 0.16, 0.17 or 0.18, and preferably, in the present embodiment, the total thickness of the heat reflecting layer 31 and the first adhesive layer 32 is 0.42mm, and preferably, the thickness of the heat reflecting layer 31 is 0.05mm, and the thickness of the first adhesive layer 32 is 0.38mm.

Further, the heat reflecting layer 31 is laminated with a plating film layer. The first adhesive layer 32 is provided to adhere the heat reflection layer 31 to the outer glass plate 1, and to improve the connection stability between the heat reflection layer 31 and the outer glass plate 1. The coating layer is used for reflecting heat, and the blue transmittance of the heat reflecting layer 31 is 75%, the visible light transmittance is more than 75%, and the requirements of the light transmittance of the front windshield of the automobile can be met. The transmittance of the first adhesive layer 32 may be 90% or more, and the first adhesive layer 32 having a thickness of 0.38mm and the heat reflection layer 31 having a thickness of 0.05mm are selected so that the composite heat insulating layer 3 has excellent properties, that is, a solar transmittance of 50%, a solar reflectance of 26%, and a solar total transmittance of 56.5%.

Further, the soundproof layer 4 includes a soundproof medium 41 and a second adhesive layer 42; the sound insulating medium 41 is sandwiched between two second adhesive layers 42. The sound insulation layer 4 is of a three-layer structure, and the sound insulation principle is that the noise transmitted to the sound insulation layer 4 from the outside is absorbed by the sound insulation medium 41, so that the noise is prevented from being transmitted, and the noise of the laminated glass provided with the sound insulation layer 4 can be reduced by 5db compared with the conventional laminated glass.

Further, the heating layer 5 is provided on one side of the soundproof layer 4, and is integrated with the soundproof layer 4. Because the sound insulation layer 4 is of a three-layer structure, two outermost layers of the sound insulation layer 4 are the second bonding layers 42, and the heating layer 5 can be bonded with one of the second bonding layers 42 to form a whole, so that the connection stability between the heating layer 5 and the sound insulation layer 4 is improved.

Further, copper bus bars 6 are welded to both side portions of the heating layer 5 in the width direction, respectively, and the copper bus bars 6 of each side portion have a break point at a midpoint in the length direction of the heating layer 5. Specifically, the middle point of the heating layer 5 in the length direction has a central line distributed along the width direction of the heating layer 5, and the heating wires of the heating layer 5 are divided into two parts by taking the central line as a boundary, and the copper bus 6 at each side is provided with a break point, so that the copper bus 6 is electrically connected with the heating wires of the corresponding region respectively, so as to heat the laminated glass in a partitioning manner. Specifically, the heating layer 5 is formed by distributing heating wires on the second adhesive layer 42 by using a wire distributor, and the heating wires are optional wires with good heat conduction performance, such as tungsten wires, copper wires or silver wires.

Further, copper bus bars 6 are distributed along the edges of the outer sheet glass plate 1 or the inner sheet glass plate 2.

Further, the copper bus bar 6 is soldered to the heating joint so that the heating layer 5 is electrically connected to a power supply through the copper bus bar 6 and the heating joint. Under the prerequisite that realizes that the heater strip passes through copper busbar 6 and heating structure and is connected with the power electricity, with copper busbar 6 along the marginal distribution of outer piece glass board 1 or interior piece glass board 2, can realize hiding of copper busbar 6, improve pleasing to the eye degree, and when this windshield was used as front windshield, can avoid sheltering from driver's sight.

In the present utility model, the first adhesive layer 32 and the second adhesive layer 42 are both PVB (polymer material formed by plasticizing and extruding a polyvinyl butyral resin with a plasticizer), and the heat reflection layer 31 is PET (polyethylene terephthalate).

Referring to fig. 1-3, a first embodiment of the present utility model is as follows:

a windshield, comprising an outer glass plate 1, an inner glass plate 2, a composite heat insulation layer 3, a sound insulation layer 4 and a heating layer 5; the outer glass plate 1, the composite heat insulation layer 3, the sound insulation layer 4, the heating layer 5 and the inner glass plate 2 are laminated; the thickness of the composite heat insulation layer 3 is smaller than or equal to 0.5mm, the thickness of the sound insulation layer 4 is smaller than or equal to 0.8mm, the heating layer 5 is internally provided with heating wires, and the diameter of the heating wires is smaller than or equal to 0.04mm. Preferably, in this embodiment, the diameter of the heating wire is 0.02mm to 0.03mm.

Referring to fig. 1, a second embodiment of the present utility model is as follows:

the present embodiment defines the specific structure of the composite thermal insulation layer 3 on the basis of the first embodiment.

In the present embodiment, the composite thermal insulation layer 3 includes a heat reflection layer 31 and a first adhesive layer 32; the outer glass plate 1, the first adhesive layer 32, the heat reflection layer 31, and the soundproof layer 4 are laminated.

In the present embodiment, the ratio of the thickness of the heat reflection layer 31 to the first adhesive layer 32 is 0.13 to 0.18.

In this embodiment, the heat reflecting layer 31 is laminated with a coating layer.

Referring to fig. 1 and 2, a third embodiment of the present utility model is as follows:

the present embodiment defines the specific structure of the soundproof layer 4 on the basis of the first or second embodiment.

In the present embodiment, the soundproof layer 4 includes a soundproof medium 41 and a second adhesive layer 42; the sound insulating medium 41 is sandwiched between two second adhesive layers 42.

In the present embodiment, the heating layer 5 is provided on the side of the soundproof layer 4 close to the inner glass plate 2, and is formed integrally with the soundproof layer 4.

Referring to fig. 1-3, a fourth embodiment of the present utility model is as follows:

the present embodiment defines a specific structure of the heating layer 5 on the basis of any one of the first to third embodiments.

In the present embodiment, copper bus bars 6 are welded to both side portions of the heating layer 5 in the width direction, respectively, and the copper bus bars 6 of each side portion have a break point at the midpoint in the length direction of the heating layer 5.

In this embodiment, copper bus bars 6 are distributed along the edges of the outer sheet glass plate 1 or the inner sheet glass plate 2.

In this embodiment, both ends of the copper bus bar 6 located outside the laminated glass are respectively welded with a heating joint so that the heating layer 5 is electrically connected with a power supply through the copper bus bar 6 and the heating joint.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims

1. A windshield comprises an outer glass plate and an inner glass plate, and is characterized by further comprising a composite heat insulation layer, a sound insulation layer and a heating layer;

2. A windshield according to claim 1, wherein the composite insulating layer comprises a heat reflective layer and a first adhesive layer;

3. A windscreen according to claim 2, wherein the ratio of the thickness of the heat reflecting layer to the thickness of the first adhesive layer is between 0.13 and 0.18.

4. A windshield according to claim 2, wherein the heat reflective layer is laminated with a coating layer.

5. A windshield according to claim 1, wherein the sound barrier layer comprises a sound barrier medium and a second adhesive layer;

6. A windscreen according to claim 1, wherein the heating layer is provided on one side of the sound insulating layer and is integral therewith.

7. A windscreen according to claim 1, wherein the heating wire has a diameter of 0.02mm to 0.03mm.

8. A windshield according to claim 1, wherein the heating layer is welded with copper bus bars on both sides in the width direction, respectively, and the copper bus bars on each side have a break point at a midpoint in the length direction of the heating layer.

9. A windscreen as set forth in claim 8 wherein said copper bus bars are distributed along edges of said outer or inner sheets of glass.

10. A windshield according to claim 8, wherein the copper busbar is soldered to a heating connector such that the heating layer is electrically connected to a power source via the copper busbar and the heating connector.