Automobile laminated glass with low light transmittance

Abstract

The utility model relates to the technical field of laminated glass, in particular to low-light-transmittance laminated glass for an automobile, which comprises a shading automobile window mechanism, an outer glass layer and a light-transmitting glass layer. The middle layer is attached to one side of the outer-layer glass; the first inner layer glass is attached to one side of the middle layer; the second inner-layer glass is attached to one side of the first inner-layer glass; and the sunshade unit is arranged at the second inner layer glass and is fixed with the frame. According to the sound insulation and heat insulation film, the middle layer adopts the macromolecule sound insulation and heat insulation film formed by compounding the PVB and the nanometer aerogel, the butyl rubber microspheres are evenly distributed in the film, the nanometer aerogel and the PVB have certain heat insulation performance, heat transfer can be effectively blocked, the temperature in a vehicle can be effectively reduced, the butyl rubber microspheres can absorb and attenuate sound wave energy, and the sound insulation and heat insulation film is good in sound insulation and heat insulation performance. When external noise is transmitted to the glass, the microspheres elastically deform, sound energy is converted into heat energy to be consumed, the sound insulation performance of the glass is remarkably improved, and a quiet in-vehicle environment is created for drivers and passengers.

Description

TECHNICAL FIELD

[0001] The utility model relates to laminated glass technical field, and specifically is a low light transmittance laminated glass for automobile. BACKGROUND

[0002] In the development process of the automobile industry, the performance optimization of automobile glass is always the key link to improve the driving and riding experience and ensure driving safety.

[0003] In terms of light transmittance, ordinary low light transmittance glass is usually achieved by simple dyeing or film pasting, which can reduce light transmittance, but the heat insulation effect is poor. Under the long-time irradiation of sunlight, the temperature in the car rises rapidly, not only increasing the energy consumption of the air conditioner, but also accelerating the aging of the interior decoration and reducing its service life. In the automobile use scene, when the vehicle is parked in an open environment, direct sunlight will cause the temperature in the car to rise sharply. At present, traditional sunshade measures usually rely on external objects such as sunshields and sunshades, which need to be operated and laid by personnel. Especially during busy times, it affects the time of personnel and cannot meet the demand of convenient and efficient sunshade. At the same time, the blocking ability of such glass to ultraviolet rays is limited, and ultraviolet rays can penetrate the glass, causing harm to the skin of the driver and passenger, and also causing the interior decoration to fade and become old, affecting the appearance of the car. SUMMARY

[0004] The utility model aims at providing a low light transmittance laminated glass for automobile to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A low light transmittance laminated glass for automobile, comprising:

[0007] A sunshade window mechanism comprising an outer glass;

[0008] An intermediate layer attached to one side of the outer glass;

[0009] An inner glass one attached to one side of the intermediate layer;

[0010] An inner glass two attached to one side of the inner glass one;

[0011] A sunshade unit provided at the inner glass two and fixed with the vehicle frame.

[0012] Further, the outer wall surface of the outer glass is coated with a nano ceramic light shielding coating.

[0013] Preferably, the sunshade window mechanism comprises:

[0014] Butyl rubber microspheres are provided and fixed at equal intervals inside the intermediate layer.

[0015] Preferably: the sunshade window mechanism comprises:

[0016] The square groove is internally provided with a sliding block.

[0017] Preferably: the sunshade window mechanism comprises:

[0018] The circular hole is internally fixedly connected with a sealing piece.

[0019] Preferably: the sunshade unit comprises a square shell one and a square shell two which are installed on a vehicle frame.

[0020] The circular rod two is provided with two ends which are fixed on the rotating shafts of the double-shaft motor.

[0021] The sunshade film is fixed between the two traction ropes and is fixedly connected with the sliding block.

[0022] The circular rod one is rotatably arranged in the square shell two.

[0023] Preferably: the sunshade window mechanism comprises:

[0024] The metal mesh layer is arranged on the surface edge region of the intermediate layer.

[0025] Compared with the prior art, the sunshade window mechanism has the advantages that:

[0026] 1. The sunshade unit in the sunshade window mechanism can effectively block sunlight when the vehicle is parked.

[0027] 2. The high polymer sound and heat insulation film is adopted by the intermediate layer, polyvinyl butyral PVB is combined with nano aerogel, and butyl rubber microspheres are uniformly distributed in the film, the nano aerogel and the PVB itself has certain heat insulation performance, can effectively block heat transfer, reduces the temperature in the vehicle, the butyl rubber microspheres can absorb and attenuate sound wave energy, when external noise is transmitted to the glass, the microspheres are elastically deformed, the sound energy is converted into heat energy and consumed, the sound insulation performance of the glass is significantly improved, and a quiet environment in the vehicle is created for the driver and passengers.

[0028] 3. The nano ceramic shading coating is coated on the outer surface of the outer glass, is made by mixing nano titanium dioxide TiO2, nano zinc oxide ZnO and organic silicone resin, the nano titanium dioxide TiO2 and the nano zinc oxide ZnO have good absorption and scattering effects on ultraviolet rays, greatly improve the ultraviolet blocking rate of the glass, protect the interior decoration and the skin of the personnel from ultraviolet damage, the organic silicone resin enhances the adhesion and durability of the coating and the glass, overcomes the problem that the traditional shading coating is easy to fall off, and ensures the long-term stability of shading and sunscreen effects. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the overall structure schematic diagram of the utility model;

[0030] Figure 2 It is the partial structure schematic diagram of the shading window mechanism in the utility model;

[0031] Figure 3 It is the internal structure schematic diagram of the inner glass two in the utility model;

[0032] Figure 4 It is the internal structure schematic diagram of the square shell two in the utility model;

[0033] Figure 5 It is the internal structure schematic diagram of the square shell one in the utility model.

[0034] In the drawing: 100, shading window mechanism;110, outer glass;120, intermediate layer;121, butyl rubber microspheres;130, inner glass one;140, inner glass two;141, square groove;142, round hole;143, sliding block;150, sunshade unit;151, square shell one;152, square shell two;153, rope winding wheel;154, round rod one;155, coil spring;156, shading film;157, traction rope;158, double-shaft motor;159, round rod two;160, metal mesh layer. DETAILED DESCRIPTION

[0035] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0036] Please refer to Figures 1-5 In the embodiments of the present application, the laminated glass with low light transmittance for automobile comprises: a light shielding window mechanism 100, which comprises an outer glass 110, the outer glass 110 is made of high-strength borosilicate glass, which can effectively resist stone impact and other external damage; a middle layer 120, which is attached to one side of the outer glass 110, the middle layer 120 is made of a high-molecular sound and heat insulation film, which can effectively insulate heat; an inner glass one 130, which is attached to one side of the middle layer 120; an inner glass two 140, which is attached to one side of the inner glass one 130, the inner glass two 140 and the inner glass one 130 are both made of indium tin oxide ITO nanoparticles tempered glass, which not only can enhance the overall strength of the glass, but also has certain electromagnetic shielding function; a sunshade unit 150, which is arranged at the inner glass two 140 and fixed with the vehicle frame, which can quickly shade the vehicle interior when parking, the outer wall surface of the outer glass 110 is coated with a nano ceramic light shielding coating, which can effectively absorb and reflect infrared and ultraviolet rays, further reduce the light transmittance of the glass and improve the heat insulation effect, the light shielding window mechanism 100 comprises: a plurality of butyl rubber microspheres 121, which are fixed at equal intervals inside the middle layer 120, and can form a sound insulation damping structure,

[0037] The light shielding window mechanism 100 comprises: a square groove 141, which is arranged inside the inner glass two 140, the inner walls of the two sides of the square groove 141 are slidably connected with a sliding block 143, two round holes 142 are arranged on the outer wall of one end of the inner glass two 140, and a sealing element is fixedly connected inside the round hole 142,

[0038] The sun-shading unit 150 comprises a square shell one 151 and a square shell two 152, the square shell one 151 is internally fixedly connected with a double-shaft motor 158 at the center; two round rods two 159 are fixedly connected with two end rotating shafts of the double-shaft motor 158 respectively, one end of the round rod two 159 is fixedly connected with a rope winding wheel 153, the rope winding wheel 153 is wound with a traction rope 157; a light-shielding film 156 is fixedly connected between the two traction ropes 157 and the sliding block 143 at one end, so that the traction rope 157 can pull the light-shielding film 156 to shield the sunlight; a round rod one 154 rotates in the square shell two 152, a coil spring 155 is fixedly connected between a rotating shaft of the round rod one 154 and an inner wall of the square shell two 152, the round rod one 154 is wound with the light-shielding film 156, so that the light-shielding film 156 can be pulled back to the original position; the sun-shading window mechanism 100 comprises a metal mesh layer 160 arranged on a surface edge area of the intermediate layer 120, which can improve the overall structural strength.

[0039] Specifically, during operation, when sunshade is needed after parking, the dual-axis motor 158 starts, and its output shaft drives the winding wheel 153 to rotate. The winding wheel 153 begins to wind up the traction rope 157, one end of which is fixed to the sunshade film 156. As the traction rope 157 winds up, the sunshade film 156 is pulled. Since the sunshade film 156 is fixed to the slider 143 located in the square groove 141 of the inner glass layer 140, the sunshade film 156 will slide and unfold along the square groove 141, thereby blocking sunlight. When sunshade is not needed, the dual-axis motor 158 reverses, driving the winding wheel 153 to extend the traction rope 157 outward. At this time, the coil spring 155 is in a state of being... In the stretched state, its elastic potential energy begins to be released, and the rebound causes the sunshade film 156 to roll up, completing the sunshade film's unfolding and retraction process. Because the outer glass 110 is made of high-strength borosilicate glass, during vehicle operation, if it encounters an impact from objects such as stones, the high-strength borosilicate glass of the outer glass 110, with its high strength characteristics, will initially withstand the impact. Its structure can effectively disperse the impact force, preventing the glass from easily shattering, providing the first line of safety for the occupants. When external heat is transferred to the glass through radiation and conduction, the nano-aerogel and PVB in the high-polymer sound and heat insulation film of the middle layer 120 play a role in insulation... The butyl rubber microspheres 121, acting as a thermal shield, impede heat conduction. When external noise reaches the glass, the microspheres vibrate due to the sound waves, undergoing elastic deformation. During this process, sound energy is converted into the internal energy of the microspheres, i.e., heat energy is dissipated, thus reducing the noise intensity entering the vehicle. When sunlight shines on the glass, the nano-ceramic light-shielding coating on the outer surface of the outer glass 110 begins to function. Nano-titanium dioxide (TiO2) and nano-zinc oxide (ZnO) absorb and scatter ultraviolet rays, reducing the amount of ultraviolet light entering the vehicle through the glass. Simultaneously, this coating also has a certain absorption and reflection effect on infrared rays, further reducing the glass's light transmittance and minimizing heat loss from sunlight. The amount of material entering the vehicle interior improves the heat insulation effect. The silicone resin serves as a carrier for the coating, firmly bonding the nano-ceramic particles to the glass surface, ensuring the stability and durability of the coating, making it less prone to peeling off during long-term use. During the installation and use of the sunshade window mechanism 100, the edges are subjected to various external forces, such as pressure during installation and vibration during vehicle operation. The metal mesh layer 160 embedded in the edge area can effectively disperse the stress on the edge. When the edge is subjected to external forces, the metal mesh can withstand some of the force, preventing cracks or breakage at the glass edge, thereby enhancing the structural strength of the glass edge and improving the overall reliability and safety of the glass.

[0040] Example 1

[0041] like Figure 2 As shown, in this embodiment, the light-blocking window mechanism 100 includes: a plurality of such mechanisms, which are fixed at equal intervals inside the intermediate layer 120 to form a sound-insulating and damping structure.

[0042] In the embodiment, the high polymer sound and heat insulation film of polyvinyl butyral PVB and nanometer aerogel composite is used by the intermediate layer 120, and the butyl rubber microspheres 121 are uniformly distributed in the film. The nanometer aerogel and PVB itself has certain heat insulation performance, can effectively block heat transfer, reduce the temperature in the vehicle, and the butyl rubber microspheres 121 can absorb and attenuate sound wave energy. When external noise is transmitted to the glass, the microspheres are elastically deformed, the sound energy is converted into heat energy and consumed, and the sound insulation performance of the glass is significantly improved, creating a quiet environment in the vehicle for the driver and passengers.

[0043] As shown in the embodiment, the light shielding window mechanism 100 includes a metal mesh layer 160 arranged on the surface edge area of the intermediate layer 120, which can improve the overall structural strength. Figure 1

[0044] In specific implementation, the nanometer ceramic light shielding coating is coated on the outer surface of the outer glass 110, which is made of nanometer titanium dioxide TiO2, nanometer zinc oxide ZnO and organic silicone resin. The nanometer titanium dioxide TiO2 and nanometer zinc oxide ZnO have good absorption and scattering effect on ultraviolet rays, greatly improving the ultraviolet blocking rate of the glass, protecting the interior decoration and the skin of the passengers from ultraviolet damage. The organic silicone resin enhances the adhesion and durability of the coating and the glass, overcoming the problem of easy peeling of traditional light shielding coating, ensuring the long-term stability of light shielding and sun protection effect. The metal mesh layer 160 is embedded in the intermediate layer 120 at a distance of 5-10 mm from the edge, which enhances the structural strength of the edge of the glass, so that the edge can better withstand external force during installation and use, reducing the risk of breakage caused by uneven stress on the edge, improving the reliability and safety of the glass as a whole. The diameter of the stainless steel wire is 0.2-0.3 mm, and the grid density is ≥8×8 / mm², which is much lower than the resolution limit of human eye about 0.1 mm, forming a "hidden mesh" effect without affecting the driver's vision.

[0045] Embodiment two

[0046] As shown in the embodiment, the light shielding window mechanism 100 includes a metal mesh layer 160 arranged on the surface edge area of the intermediate layer 120, which can improve the overall structural strength. Figures 3-5 ​As shown, in the embodiment, the sunshade unit 150 comprises a square shell one 151 and a square shell two 152 mounted on the vehicle frame, the square shell one 151 is internally fixedly connected with a double-shaft motor 158 at the center; two round rods two 159 are fixedly connected with two end shafts of the double-shaft motor 158 respectively, one end of the round rod two 159 is fixedly connected with a rope winding wheel 153, the rope winding wheel 153 is wound with a traction rope 157; a light shielding film 156 is fixedly connected between the two traction ropes 157 and the sliding block 143, and can make the traction rope 157 pull the light shielding film 156 to shield sunlight; a round rod one 154 rotates in the square shell two 152, a coil spring 155 is fixedly connected between the rotating shaft of the round rod one 154 and the inner wall of the square shell two 152, the round rod one 154 is wound with the light shielding film 156, and can pull the light shielding film 156 back to the original position.

[0047] In specific implementation, the sunshade unit 150 in the sunshade window mechanism 100 can effectively shield sunlight when parking, the double-shaft motor 158 drives the rope winding wheel 153 to rotate, winds the traction rope 157, pulls the light shielding film 156 in the square groove 141 of the inner layer glass two 140 to expand, and shields sunlight, prevents sunlight from entering the vehicle when parking, reduces high temperature in the vehicle caused by direct sunlight, protects the vehicle decoration and articles, and improves comfort of subsequent driving and riding. When the sunshade is not needed, the double-shaft motor 158 reverses, drives the rope winding wheel 153 to extend the traction rope 157 outward, the coil spring 155 rebounds to drive the light shielding film 156 to wind, the light shielding film 156 is conveniently and quickly retracted, does not affect the sight line during normal driving, and the square shell one 151 and the square shell two 152 are small in size, can be installed in the vehicle frame or the shell at the vehicle frame edge, and do not affect the overall arrangement in the vehicle.

[0048] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be regarded as limiting the claims to which they relate.

[0049] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A laminated glass for automobiles with low light transmittance, characterized in that, The utility model relates to a sunshade window mechanism (100) comprising: An outer glass (110); An intermediate layer (120) attached to one side of the outer glass (110); An inner glass one (130) attached to one side of the intermediate layer (120); An inner glass two (140) attached to one side of the inner glass one (130); A sunshade unit (150) provided at the inner glass two (140) and fixed to a vehicle frame.

2. The low light transmittance laminated glass for automobiles according to claim 1, wherein The outer wall surface of the outer glass (110) is coated with a nano ceramic sunshade coating.

3. The low light transmittance laminated glass for automobiles according to claim 1, wherein The sunshade window mechanism (100) comprises: A plurality of butyl rubber microspheres (121) fixed at equal intervals inside the intermediate layer (120).

4. The low light transmittance laminated glass for automobiles according to claim 1, wherein The sunshade window mechanism (100) comprises: A square groove (141) formed inside the inner glass two (140), and the two inner walls of the square groove (141) are slidingly connected with sliding blocks (143).

5. The low light transmittance laminated glass for automobiles according to any one of claims 1 to 4, wherein The sunshade window mechanism (100) comprises: Two circular holes (142) formed at the two sides of the outer wall of one end of the inner glass two (140), and the circular holes (142) are fixedly connected with sealing members inside.

6. The low light transmittance laminated glass for automobiles according to claim 5, wherein The sunshade unit (150) comprises a square shell one (151) and a square shell two (152) mounted on the vehicle frame, and a double-shaft motor (158) fixedly connected at the center inside the square shell one (151); Two circular rods two (159) fixedly connected with the two ends of the double-shaft motor (158), and the one end of the circular rod two (159) is fixedly connected with a rope winding wheel (153), and the rope winding wheel (153) is wound with a traction rope (157); A sunshade film (156) fixedly connected with the sliding blocks (143) and fixed at one end between the two traction ropes (157); A circular rod one (154) rotating inside the square shell two (152), and a coil spring (155) fixedly connected between the rotating shaft of the circular rod one (154) and the inner wall of the square shell two (152), and the circular rod one (154) is wound with the sunshade film (156).

7. The low light transmittance laminated glass for automobiles according to claim 6, wherein The sunshade window mechanism (100) comprises: A metal mesh layer (160) provided at the surface edge region of the intermediate layer (120).

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