Heat and sound insulation automobile glass
By incorporating a composite interlayer and adding sun-protective and heat-insulating films into automotive glass, the problem of insufficient heat and sound insulation performance of existing automotive glass has been solved, achieving better heat and sound insulation effects.
Patent Information
- Application Number
- CN202520329255.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing automotive glass is inadequate in terms of heat and sound insulation, allowing solar heat radiation to penetrate the glass and enter the vehicle, resulting in loss of air conditioning, and external noise can disturb the occupants.
A composite interlayer is set between two tempered glass panels. The interlayer consists of a sealant layer, a heat insulation layer, and a sound insulation layer. There is a sun protection film on the outside and a heat insulation film on the inside. Polyurethane foam, sound insulation cotton, PVB film and silica aerogel are used to improve the heat insulation and sound insulation effect.
It effectively insulates heat and sound, reduces ultraviolet radiation intrusion, improves the heat and sound insulation performance of automotive glass, and reduces heat radiation and noise interference inside the vehicle.
Smart Images
Figure CN223791142U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive glass technology, specifically relating to a heat-insulating and sound-insulating automotive glass. Background Technology
[0002] Automotive glass is manufactured by heating the glass to near its softening temperature in a furnace, then rapidly sending it through air vents with varying cooling intensities to achieve uneven cooling. This creates different stresses between the main viewing area and the surrounding areas, resulting in zone-tempered glass.
[0003] Existing automotive glass is generally made of tempered glass or laminated glass, which has average heat insulation and sound insulation performance. Solar heat radiation penetrates the glass and enters the vehicle, causing a significant loss of air conditioning, and external noise disturbs the occupants. Utility Model Content
[0004] The purpose of this invention is to provide a heat-insulating and sound-insulating automotive glass to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating and sound-insulating automotive glass, comprising two tempered glass panels and a composite interlayer disposed between the two tempered glass panels. The composite interlayer includes a sealant layer, a heat insulation layer, and a sound insulation layer. The sealant layer is disposed on the outermost side of the composite interlayer. The two tempered glass panels are bonded together by the sealant layer. The heat insulation layer is disposed on the inner side of the sealant layer. The sound insulation layer is disposed on the inner side of the heat insulation layer. A sun-protective film is fixedly connected to the inner side of the tempered glass panels, and a heat-insulating film is fixedly connected to the inner side of the sun-protective film.
[0006] In a preferred embodiment, the insulation layer is made of polyurethane foam.
[0007] In a preferred embodiment, the sound insulation layer is sound insulation cotton.
[0008] In a preferred embodiment, the sunscreen film is a PVB film.
[0009] In a preferred embodiment, the heat insulation film is silica aerogel.
[0010] In a preferred embodiment, the outer surface of the tempered glass plate is provided with an anti-ultraviolet coating.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This heat-insulating and sound-insulating automotive glass, through the composite interlayer, uses a sealant layer to bond and seal the two tempered glass panels, forming a sealed cavity between them. This can isolate heat and sound to a certain extent. The heat insulation layer can improve the heat and sound insulation effect of the automotive glass, while the sound insulation layer can absorb the sound waves transmitted into the automotive glass, reducing the transmission of sound waves within the glass, thereby further improving the sound insulation effect of the automotive glass.
[0013] This heat-insulating and sound-insulating automotive glass, through the installation of a sun-protective film, can reduce the ultraviolet rays that shine into the car glass and weaken the heat radiation inside the car glass after being exposed to sunlight, thereby further improving the heat insulation effect. Through the installation of the heat insulation film, silica aerogel, a nano-lightweight porous material with air as its main component and amorphous silica as its basic framework, can effectively insulate heat and further improve the heat insulation effect of the automotive glass. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.
[0016] In the diagram: 1. Tempered glass panel; 11. Sunscreen film; 12. Heat insulation film; 13. UV protection coating; 2. Composite interlayer; 21. Sealant layer; 22. Heat insulation layer; 23. Sound insulation layer. Detailed Implementation
[0017] The present invention will be further described below with reference to the embodiments.
[0018] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0019] Please see Figure 1-2This utility model provides a heat-insulating and sound-insulating automotive glass, comprising two tempered glass panels 1 and a composite interlayer 2 disposed between the two tempered glass panels 1. The composite interlayer 2 includes a sealant layer 21, a heat insulation layer 22, and a sound insulation layer 23. The sealant layer 21 is disposed on the outermost side of the composite interlayer 2. The two tempered glass panels 1 are bonded together by the sealant layer 21. The sealant layer 21 provides a sealing effect for the two tempered glass panels 1, forming a sealed cavity between them, thereby isolating heat and sound to a certain extent. The heat insulation layer 22 is disposed on the inner side of the sealant layer 21. The heat insulation layer 22 is made of polyurethane foam material with a closed-cell rate of over 90% and an extremely low thermal conductivity. The heat insulation layer 22 effectively insulates heat and absorbs sound waves, thus improving the heat and sound insulation of the car glass. The sound insulation layer 23 is located inside the heat insulation layer 22 and is made of sound insulation cotton. Sound insulation cotton is a kind of artificial inorganic fiber made from natural minerals such as quartz sand, limestone, and dolomite as the main raw materials, combined with some chemical raw materials such as soda ash and borax to melt into glass. In the molten state, it is blown into flocculent fine fibers by external force. The fibers are three-dimensionally intertwined and entangled with each other, presenting many small gaps. Through the setting of the sound insulation layer 23, the sound waves transmitted into the car glass can be absorbed, reducing the transmission of sound waves in the car glass, thereby further improving the sound insulation effect of the car glass.
[0020] Reference Figure 2 A sun-protective film 11 is fixedly connected to the inner side of the tempered glass panel 1. The sun-protective film 11 is a PVB film, which is a thermoplastic resin film made of PVB resin and plasticizer. It has sun protection and sound insulation functions. By setting the sun-protective film 11, the ultraviolet rays shining into the car glass can be reduced, and the heat radiation inside the car glass after exposure to sunlight can be weakened, thereby improving the heat insulation effect. A heat-insulating film 12 is fixedly connected to the inner side of the sun-protective film 11. The heat-insulating film 12 is a silica aerogel. The silica aerogel is a nano-lightweight porous material with air as its main component and amorphous silica as its basic framework. It can effectively insulate heat and further improve the heat insulation effect of the car glass. An anti-ultraviolet coating 13 is set on the outer surface of the tempered glass panel 1. By setting the anti-ultraviolet coating 13, the anti-ultraviolet ability of the tempered glass panel 1 surface can be improved, further reducing the penetration of ultraviolet rays into the car glass.
[0021] The working principle and usage process of this utility model are as follows: First, the sealing layer 21 can bond and seal the two tempered glass plates 1, forming a sealed cavity between them. This can isolate heat and sound to a certain extent. The polyurethane foam material has a closed-cell rate of over 90% and an extremely low thermal conductivity, effectively isolating heat and absorbing sound waves. The heat insulation layer 22 can improve the heat and sound insulation effect of the car glass. The sound insulation cotton is a man-made inorganic fiber made from natural minerals such as quartz sand, limestone, and dolomite as the main raw materials, combined with some chemical raw materials such as soda ash and borax. In the molten state, it is blown into flocculent fine fibers by external force. The fibers are three-dimensionally intertwined and entangled with each other. Together, they present many tiny gaps. Through the setting of the sound insulation layer 23, the sound waves transmitted into the car glass can be absorbed, reducing the transmission of sound waves into the car glass, thereby further improving the sound insulation effect of the car glass. PVB film is a thermoplastic resin film, which is produced by adding plasticizer to PVB resin. It has sun protection and sound insulation functions. Through the setting of the sun protection film 11, the ultraviolet rays shining into the car glass can be reduced, and the heat radiation inside the car glass after exposure to sunlight can be weakened, thereby further improving the heat insulation effect. Through the setting of the heat insulation film 12, silica aerogel is a nano-lightweight porous material with air as the main component and amorphous silica as the basic framework. It can effectively insulate heat, further improving the heat insulation effect of the car glass.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heat-insulating and sound-insulating automotive glass, comprising two tempered glass panels (1) and a composite interlayer (2) disposed between the two tempered glass panels (1), characterized in that: The composite interlayer (2) includes a sealant layer (21), a heat insulation layer (22), and a sound insulation layer (23). The sealant layer (21) is located on the outermost side of the composite interlayer (2). The two tempered glass panels (1) are bonded together by the sealant layer (21). The heat insulation layer (22) is located on the inner side of the sealant layer (21). The sound insulation layer (23) is located on the inner side of the heat insulation layer (22). A sun protection film (11) is fixedly connected to the inner side of the tempered glass panel (1). A heat insulation film (12) is fixedly connected to the inner side of the sun protection film (11).
2. The heat-insulating and sound-insulating automotive glass according to claim 1, characterized in that: The heat insulation layer (22) is made of polyurethane foam.
3. The heat-insulating and sound-insulating automotive glass according to claim 1, characterized in that: The sound insulation layer (23) is sound insulation cotton.
4. The heat-insulating and sound-insulating automotive glass according to claim 1, characterized in that: The sunscreen film (11) is a PVB film.
5. The heat-insulating and sound-insulating automotive glass according to claim 1, characterized in that: The heat insulation film (12) is silica aerogel.
6. The heat-insulating and sound-insulating automotive glass according to claim 1, characterized in that: The outer surface of the tempered glass plate (1) is provided with an anti-ultraviolet coating (13).