Vehicle window glass and vehicle

Abstract

The application provides a vehicle window glass and a vehicle, improves the use reliability of the vehicle window glass, improves the aesthetic degree of the vehicle window glass, and improves the safety performance of the vehicle. The vehicle window glass comprises a first glass plate, a second glass plate and an intermediate layer, the first glass plate and the second glass plate are connected through the intermediate layer; the vehicle window glass has a signal transmission area, the signal transmission area is used for transmitting an optical signal, a signal transmission opening corresponding to the signal transmission area is arranged on the second glass plate; the vehicle window glass further comprises an electric heating assembly and an electric connecting element, the electric heating assembly is arranged between the first glass plate and the second glass plate, the electric connecting element is electrically connected with the electric heating assembly, and one end of the electric connecting element for electrically connecting with an external power supply is located in the signal transmission opening.

Description

Technical Field

[0001] This application relates to the field of vehicle parts technology, and more particularly to a window glass and a vehicle. Background Technology

[0002] Existing vehicles typically incorporate a heating layer and a conductive busbar electrically connected to the heating layer within the laminated glass, which is then electrically connected to an external power source via electrical connectors and conductive joints. Current from the external power source flows to the heating layer through the electrical connectors and conductive busbars, enabling the laminated glass to be heated and defrosted. However, some electrical connectors extend beyond the periphery of the laminated glass to achieve this connection. This allows external water to seep into the space between the inner and outer panes of the laminated glass along these external connectors, affecting the reliability of the vehicle window. Summary of the Invention

[0003] This application provides a vehicle window glass and a vehicle, which improves the reliability of the vehicle window glass, enhances its aesthetics, and improves the safety performance of the vehicle.

[0004] This application provides a vehicle window glass, including a first glass plate, a second glass plate, and an intermediate layer, wherein the first glass plate and the second glass plate are connected through the intermediate layer; The vehicle window glass has a signal transmission area for transmitting optical signals, and the second glass plate has a signal transmission opening corresponding to the signal transmission area; The vehicle window glass also includes an electric heating component and an electrical connection element. The electric heating component is disposed between the first glass plate and the second glass plate. The electrical connection element is electrically connected to the electric heating component, and one end of the electrical connection element for electrical connection to an external power source is located at the signal transmission opening.

[0005] The electrical connection element is located entirely within the signal transmission opening.

[0006] The electric heating assembly includes a first heating element and a busbar. The first heating element is electrically connected to the busbar, and the electrical connection element is electrically connected to the busbar within the signal transmission opening.

[0007] There are two busbars and two electrical connection elements. The two busbars are spaced apart, and the two electrical connection elements are spaced apart. Each electrical connection element is electrically connected between one busbar and the external power source.

[0008] Wherein, the infrared transmittance of the signal transmission region is greater than or equal to 85% in the wavelength range of at least one of 850nm±5nm, 905nm±5nm and 1550nm±5nm.

[0009] The vehicle window glass also has a shielding area, which surrounds the signal transmission area. The signal transmission opening completely covers the signal transmission area and partially covers the shielding area. The electric heating component and the electrical connection element are both located in the shielding area.

[0010] The vehicle window glass also includes an infrared anti-reflective layer, which is disposed on the first glass plate, located within the signal transmission opening, and covers at least a portion of the signal transmission area.

[0011] Wherein, the infrared transmittance of the signal transmission region is greater than or equal to 90% in the wavelength range of at least one of 850nm±5nm, 905nm±5nm and 1550nm±5nm.

[0012] The infrared antireflection layer includes an infrared antireflection film.

[0013] The vehicle window glass also includes a light filter, which is disposed on the first glass plate, located within the signal transmission opening, and covers at least a portion of the signal transmission area.

[0014] The infrared transmittance of the filter is greater than its visible light transmittance.

[0015] The vehicle window glass also has a viewing area, and the shielding area is arranged around the viewing area; The electric heating assembly includes a first heating element and a busbar. The first heating element is located between the first glass plate and the second glass plate. The first heating element is located in the visible area and is electrically connected to the busbar. The projection of the first heating element on the second glass plate is spaced apart from the signal transmission opening. The busbar is electrically connected to the electrical connection element.

[0016] The vehicle window glass also includes a shielding layer, which is disposed on the first glass plate and located in the shielding area, and covers the side wall of the electrical connection element and the signal transmission opening.

[0017] The vehicle window glass also includes a sealing layer, which is disposed on the side wall of the signal transmission opening and covers the side wall of the signal transmission opening.

[0018] The electric heating component is misaligned with the signal transmission opening, or a portion of the electric heating component is located within the signal transmission opening.

[0019] This application also provides a vehicle, including a body and a window as described above, the window being mounted on the body.

[0020] The vehicle window glass proposed in this application has a signal transmission opening on the second glass panel. An electrical connection element is electrically connected to an electric heating assembly, and the end of the electrical connection element used for electrical connection to an external power source is located at the signal transmission opening. With this configuration, the electrical connection element does not need to extend beyond the peripheral surface of the glass body; instead, it extends directly to the signal transmission opening for electrical connection to the external power source. Therefore, external water will not seep between the first and second glass panels along the peripheral surface of the glass body, thus improving the reliability of the vehicle window glass, enhancing its aesthetics, and improving vehicle safety performance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0022] Figure 1 This is a schematic diagram of the vehicle structure provided in an embodiment of this application; Figure 2 yes Figure 1 A plan view of the vehicle window glass in the first embodiment shown. Figure 3 yes Figure 2 The diagram shows the cross-sectional structure of the car window glass after it has been cut along point AA. Figure 4 yes Figure 1 The diagram shows the structure of the vehicle window glass in the second embodiment. Figure 5 yes Figure 1 The diagram shows the structure of the vehicle window glass in the third embodiment. Figure 6 yes Figure 1 A plan view of the vehicle window glass in the fourth embodiment shown; Figure 7 yes Figure 1 A plan view of the vehicle window glass in the fifth embodiment shown; Figure 8 yes Figure 1 A plan view of the vehicle window glass in the sixth embodiment shown; Figure 9 yes Figure 1 A plan view of the vehicle window glass in the seventh embodiment shown; Figure 10 yes Figure 1 A plan view of the vehicle window glass in the eighth embodiment shown; Figure 11 yes Figure 1 The diagram shows a plan view of the vehicle window glass in the ninth embodiment.

[0023] Reference numerals: Vehicle 1000, Body 2000, Window glass 3000, Glass body 100, Electric heating assembly B, Electrical connection element C, First heating element 140, Busbar 200, Electrical connector 300, Conductive connector 400, Visible area 100a, Non-visible area 100b, Signal transmission area 100c, Shielding area 100d, First glass plate 110, Second glass plate 120, Intermediate layer 130, First surface 111, Second surface 112, Third surface 121, Fourth surface 122, Fifth surface 131, Sixth surface 132, Signal transmission opening Q, Sealing layer 500, Infrared anti-reflective layer 600, First connecting end 410, Second connecting end 450, External power supply T, Shielding layer 700. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] Please see Figures 1 to 3 , Figure 1 This is a structural schematic diagram of the vehicle 1000 provided in the embodiments of this application. Figure 2 yes Figure 1 The diagram shows a plan view of the vehicle window 3000 of the vehicle 1000 in the first embodiment. Figure 3 yes Figure 2 The diagram shows the cross-sectional structure of the car window glass 3000 after being cut along point AA.

[0026] Vehicle 1000 includes a body 2000, a window 3000, and sensors (not shown). The body 2000 may be a sheet metal part manufactured using sheet metal processing. The window 3000 is mounted on the body 2000. The sensors are located inside the vehicle 1000, mounted on the body 2000, and positioned opposite the window 3000. The sensors can detect and identify the external environment of the vehicle 1000 through the window 3000. For example, the sensor may be a lidar sensor used to transmit and / or receive optical signals.

[0027] The vehicle window glass 3000 includes a glass body 100. In this embodiment, the vehicle window glass 3000 is used in a windshield. In other embodiments, the vehicle window glass 3000 may also be used in other types of glass, and this application does not limit this.

[0028] The glass body 100 has a visible area 100a and a non-visible area 100b. The visible area 100a is located in the middle of the glass body 100. External light can enter the interior of the vehicle 1000 through the visible area 100a, and light from inside the vehicle 1000 can also enter the external environment through the visible area 100a. The non-visible area 100b is located around the periphery of the visible area 100a and is arranged around the visible area 100a. The non-visible area 100b includes a signal transmission area 100c and a shielding area 100d. The signal transmission area 100c is spaced apart from the visible area 100a and is used to transmit and / or receive optical signals through the sensor. In this embodiment, the signal transmission area 100c is located at the top of the glass body 100. The sensor is arranged opposite to the signal transmission area 100c. The sensor can identify and detect the external environment of the vehicle 1000 through the signal transmission area 100c. For example, the sensor is a lidar, which emits and / or receives optical signals that are transparent to a signal transmission area 100c. A shielding area 100d is located at the periphery of the visible area 100a and is arranged around the visible area 100a and the signal transmission area 100c.

[0029] The glass body 100 is laminated glass. The glass body 100 includes a first glass plate 110, a second glass plate 120, and an intermediate layer 130. The second glass plate 120 and the first glass plate 110 are spaced apart and disposed opposite to each other. The intermediate layer 130 is located between the first glass plate 110 and the second glass plate 120.

[0030] The first glass plate 110 is the glass of the glass body 100 facing the outside of the vehicle 1000. The first glass plate 110 includes a first surface 111 and a second surface 112. The first surface 111 is the surface of the first glass plate 110 facing the outside of the vehicle 1000. Along the thickness direction of the first glass plate 110, the second surface 112 is disposed opposite to the first surface 111 and faces the inside of the vehicle 1000. The infrared transmittance of the first glass plate 110 is greater than or equal to 85% in at least one of the wavelength ranges of 850nm±5nm, 905nm±5nm, and 1550nm±5nm. That is, the infrared transmittance of the signal transmission area 100c is greater than or equal to 85% in at least one of the wavelength ranges of 850nm±5nm, 905nm±5nm, and 1550nm±5nm, ensuring that the vehicle window glass 3000 has high infrared transmittance in the above wavelength range, which is beneficial to the propagation of optical signals in the signal transmission area 100c. Furthermore, the visible light transmittance of the first glass plate 110 is greater than or equal to 85%, ensuring that the glass body 100 has a high visible light transmittance, and that the visible light transmittance of the window glass 3000 is greater than or equal to 70%, allowing light to pass smoothly through the window glass 3000, which is beneficial for drivers and passengers to observe the external environment. For example, the first glass plate 110 is made of soda-lime silicon ultra-clear glass or high-alumina glass, etc.

[0031] The second glass panel 120 is the glass of the glass body 100 facing the interior of the vehicle 1000, and is located on the side of the first glass panel 110 facing the interior of the vehicle 1000. Specifically, the second glass panel 120 is located on the side of the second surface 112 facing away from the first surface 111, and is spaced apart from the second surface 112. The second glass panel 120 includes a third surface 121 and a fourth surface 122. The third surface 121 faces the second surface 112 and is spaced apart from the second surface 112. Along the thickness direction of the second glass panel 120, the fourth surface 122 is disposed opposite to the third surface 121 and faces the interior of the vehicle 1000.

[0032] An intermediate layer 130 is located between the second surface 112 and the third surface 121, and is bonded to either the second surface 112 or the third surface 121 to bond the first glass plate 110 and the second glass plate 120 together. That is, the first glass plate 110 and the second glass plate 120 are connected by the intermediate layer 130. The intermediate layer 130 has a fifth surface 131 and a sixth surface 132. The fifth surface 131 faces the second surface 112, and the sixth surface 132 faces the third surface 121. The intermediate layer 130 may be a single layer or multiple layers. In this embodiment, the material of the intermediate layer 130 may include thermoplastic materials. Thermoplastic materials include, but are not limited to, one or more of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), and optically clear resin (OCR). When the interlayer 130 is polyvinyl butyral (PVB), the interlayer may have one or more of the following properties: heat insulation, sound insulation, and UV protection. For example, the interlayer 130 may be 3M's Crystalline 80 heat insulation film, Eastman's Saflex™ Evoca™ RSL high-rigidity sound insulation film, or automotive-grade PVB film manufactured by Kin Tao (Fogang) Specialty Resins Co., Ltd. In some other embodiments, the material of the interlayer 130 may also include thermosetting materials. Thermosetting materials include, but are not limited to, one or more of optically clear adhesive (OCA), liquid optically clear adhesive (LOCA), and optically clear resin (OCR).

[0033] The glass body 100 is provided with a signal transmission opening Q. The signal transmission opening Q penetrates the second glass plate 120 and the intermediate layer 130 along the thickness direction of the glass body 100 and is located in the non-visible area 100b. It is understood that the second glass plate 120 has a signal transmission opening Q corresponding to the signal transmission area 100c, and the intermediate layer 130 is not located in the signal transmission opening Q. The signal transmission opening Q completely covers the signal transmission area 100c and partially covers the shielding area 100d. It should be noted that the signal transmission opening Q completely covering the signal transmission area 100c can eliminate the second glass plate 120 and the intermediate layer 130 located in the signal transmission area 100c, which can reduce the reflection of infrared light by the second glass plate 120 and the intermediate layer 130, thereby improving the infrared transmittance of the vehicle window glass 3000, which is beneficial to improving the working quality of the sensor and improving the safety performance of the vehicle 1000. In this embodiment, the signal transmission opening Q is spaced apart from the peripheral side of the glass body 100. For example, the signal transmission opening Q is circular.

[0034] The vehicle window glass 3000 also includes an electric heating assembly B and an electrical connection element C. The electric heating assembly B is disposed between the first glass plate 110 and the second glass plate 120, and is located in the shielded area 100d. The electrical connection element C is electrically connected to the electric heating assembly B and is also located in the shielded area 100d. Simultaneously, one end of the electrical connection element C used for connecting to an external power source is located at the signal transmission opening Q. That is, the arrangement of the signal transmission opening Q provides installation space for the electrical connection element C, facilitating the connection of the electric heating assembly B to the external power source of the busbar.

[0035] In this embodiment, the electric heating component B is offset from the signal transmission opening Q. Specifically, the electric heating component B includes a first heating element 140 and a busbar 200. The first heating element 140 is located between the first glass plate 110 and the second glass plate 120. Specifically, the first heating element 140 is located in the visible area 100a and the partially obscured area 100d, and is electrically connected to the busbar 200. The projection of the first heating element 140 on the second glass plate 120 is spaced apart from the signal transmission opening Q. In this embodiment, the first heating element 140 is disposed on the second surface 112. The first heating element 140 includes a low-emissivity film layer. The low-emissivity film layer has good conductivity and is the main functional film layer for the electric heating function, which can heat the glass body 100 and enable the window glass to have the function of defrosting and defogging. In some other embodiments, the first heating element 140 may also be disposed on the surface of the second glass plate 120 facing the first glass plate 110, which is not limited in this application.

[0036] In this embodiment, the sheet resistance of the first heating element 140 is less than or equal to 3Ω, that is, the sheet resistance of the low-emissivity film layer is less than or equal to 3Ω, so as to control the resistance during the electric heating process. This means that the current loss when passing through the first heating element 140 is smaller, and electrical energy can be converted into heat energy more effectively, thereby achieving a better electric heating effect and improving the performance of the car window glass. The first heating element 140 can be a heating film layer, a heating wire, or a silver paste heating wire. For example, the first heating element 140 is a silver-based low-emissivity film. Specifically, the first heating element 140 can be a single silver structure composed of five layers: an oxide layer, a transition layer, a silver layer, a transition layer, and a protective layer; or a multilayer film composed of seven layers: an oxide layer, a transition layer, a silver layer, a transition layer, a silver layer, a transition layer, and a protective layer; or a triple silver structure or a quadruple silver structure. This application does not limit this.

[0037] In this embodiment, the projection of the first heating element 140 on the second glass plate 120 is spaced apart from the signal transmission opening Q, ensuring that the first heating element 140 is not located within the signal transmission opening Q, while also preventing oxidation of the first heating element 140 and improving the service life of the window glass 3000. It should be noted that the first heating element 140, such as the low-emissivity film layer, has a high reflectivity for infrared light, effectively reflecting thermal radiation and reducing heat transmission. That is, the infrared transmittance of the first heating element 140 is low. By not placing the first heating element 140 within the signal transmission opening Q, the infrared transmittance of the glass body 100 in the signal transmission area 100c can be increased, thereby ensuring that the sensor can receive and transmit signals in the signal transmission area 100c, improving the performance of the window glass 3000 and the driving safety of the vehicle 1000.

[0038] In this embodiment, the method of not setting the first heating element 140 inside the signal transmission opening Q is to set a cover plate on the first glass plate 110 at the position corresponding to the signal transmission opening Q. The cover plate is used to block the position on the first glass plate 110 corresponding to the signal transmission opening Q, so that the first heating element 140 can be set on the part of the first glass plate 110 other than the position corresponding to the signal transmission opening Q. The projection of the signal transmission opening Q on the first glass plate 110 is located inside the projection of the cover plate on the first glass plate 110, ensuring that the area of ​​the unset first heating element 140 is larger than the area of ​​the signal transmission opening Q. This can prevent the first heating element 140 from being exposed to the external environment, avoid oxidation of the first heating element 140 affecting the electric heating performance, and also prevent the first heating element 140 from affecting the infrared transmittance of the glass body 100 in the signal transmission area 100c, ensuring that the sensor can send and receive signals in the signal transmission area 100c. In addition, the first heating element 140 in the area corresponding to the signal transmission opening Q on the first glass plate 110 can also be removed by laser removal method. This application does not limit the film removal method.

[0039] Busbar 200 is located in the shielded area 100d and is offset from the signal transmission opening Q. It is electrically connected to the electrical connection element C within the signal transmission opening Q so that busbar 200 can be electrically connected to the external power supply T. There are two busbars 200 and two electrical connection elements C. The two busbars 200 and two electrical connection elements C are spaced apart. Along the height direction of the vehicle window glass, the two busbars 200 are located on opposite sides of the visible area 100a. In this embodiment, the material of busbar 200 includes at least one of conductive paste and metal foil. Specifically, busbar 200 can be one or more of screen-printed conductive silver paste, screen-printed copper paste, screen-printed aluminum paste, adhered copper foil, adhered silver foil, adhered aluminum foil, and adhered gold foil. Each electrical connection element C is electrically connected between one busbar 200 and the external power supply.

[0040] Electrical connection element C includes an electrical connector 300 and a conductive connector 400. Both the electrical connector 300 and the conductive connector 400 are disposed on the glass body 100. The electrical connector 300 is located in the shielding area 100d, on one side of the busbar 200, and is electrically connected to the busbar 200. At least a portion of the electrical connector 300 is located in the signal transmission opening Q and is used for electrical connection with the conductive connector 400. There are two electrical connectors 300. The two electrical connectors 300 are spaced apart. Each electrical connector 300 is electrically connected between a busbar 200 and a conductive connector 400. At least a portion of one of the two electrical connectors 300 is located in the signal transmission opening Q and is electrically connected to a busbar 200.

[0041] The conductive connector 400 is electrically connected to the busbar 200 and is used for connection to an external power supply T. The conductive connector 400 includes a first connecting end 410 and a second connecting end 450. The first connecting end 410 is electrically connected to the electrical connector 300. The second connecting end 450 is disposed opposite to the first connecting end 410 and is connected to it, and is used for connection to the external power supply T. It should be noted that the signal transmission through the opening Q prevents the electrical connector 300 from extending beyond the peripheral side of the glass body 100 before connecting to the conductive connector 400. This avoids gaps between the peripheral side of the glass body 100 and the sheet metal parts of the vehicle 1000, preventing external water from seeping into the interior of the glass body 100. This improves the reliability and aesthetics of the vehicle window glass 3000 and enhances the safety performance of the vehicle 1000.

[0042] In this embodiment, the conductive connector 400 is located inside the signal transmission opening Q and within the shielding area 100d, thus avoiding the signal transmission area 100c and preventing the conductive connector 400 from affecting the signal transmission of the sensor in the signal transmission area 100c. In other embodiments, the conductive connector 400 may be located outside the signal transmission opening Q, or the conductive connector 400 may be prevented from being connected to an external power supply T on the peripheral side of the glass body 100, thereby improving the reliability of the vehicle window glass 3000 and enhancing its aesthetics and the safety performance of the vehicle 1000.

[0043] In this embodiment, there are two conductive connectors 400. The two conductive connectors 400 are arranged at a distance from each other. Each conductive connector 400 is electrically connected to an electrical connector 300 and to an external power supply T. One of the two conductive connectors 400 is located at the signal transmission opening Q.

[0044] In this embodiment, the vehicle window glass 3000 also includes a sealing layer 500. The sealing layer 500 is disposed on the sidewall of the signal transmission opening Q and covers the sidewall of the signal transmission opening Q to seal it. The sealing layer 500 prevents impurities, moisture, and other substances from entering between the first glass plate 110 and the second glass plate 120 from the sidewall of the signal transmission opening Q, improving the reliability of the vehicle window glass 3000 and enhancing its aesthetics. Furthermore, during vehicle 1000 operation, when the vehicle body 2000 and the vehicle window glass 3000 experience vibrations and impacts, the sealing layer 500 can also act as a buffer, improving the durability and safety performance of the vehicle window glass 3000, extending its service life, and enhancing the stability of the vehicle 1000. In this embodiment, the sealing layer 500 is also spaced apart from the signal transmission area 100c to prevent it from interfering with the sensor's transmission and reception of optical signals in the signal transmission area 100c. The sealing layer 500 is made of at least one of thermoplastic elastomer (TPE), polyurethane (PU), silicone sealant, and ultraviolet curing adhesive (UV adhesive).

[0045] Please see Figure 4 , Figure 4 yes Figure 1 The diagram shows the structure of the window glass 3000 in the second embodiment of the vehicle 1000 shown.

[0046] The difference between this embodiment and the first embodiment is that a portion of the electric heating component B is located within the signal transmission opening Q, and the electrical connection element C is electrically connected to the busbar 200 within the signal transmission opening Q. Specifically, the electrical connection element C is completely located within the signal transmission opening Q. In this case, a portion of the busbar 200 is located within the signal transmission opening Q so as to be electrically connected to the electrical connection element C within the signal transmission opening Q. The electrical connection element C is electrically connected to the portion of the busbar 200 located in the signal transmission opening Q, and is also electrically connected to the conductive connector 400.

[0047] Please see Figure 5 , Figure 5 yes Figure 1 The diagram shows the structure of the window glass 3000 in the vehicle 1000 in the third embodiment.

[0048] The difference between this embodiment and the first embodiment is that the vehicle window glass 3000 also includes an infrared anti-reflection layer 600. The infrared anti-reflection layer 600 is disposed on the first glass plate 110. Specifically, the infrared anti-reflection layer 600 is disposed on the second surface 112. The infrared anti-reflection layer 600 is located within the signal transmission opening Q and covers at least a portion of the signal transmission area 100c. The provision of the infrared anti-reflection layer 600 can improve the infrared transmittance of the vehicle window glass 3000 in the signal transmission area 100c, thereby ensuring signal reception and transmission by the sensor in the signal transmission area 100c. For example, the infrared anti-reflection layer 600 is disposed on the second surface 112 by means of a film. In some other embodiments, the infrared anti-reflection layer can be simultaneously disposed on the first surface 111 and the second surface 112, which can further improve the infrared transmittance of the vehicle window glass in the signal transmission area 100c, thus further improving the performance of the vehicle window glass 3000.

[0049] The infrared anti-reflection layer 600 has a higher infrared transmittance than visible light transmittance, ensuring that the infrared transmittance of the window glass 3000 is greater than that of visible light, thus optimizing the transmittance of light in the signal transmission area 100c and improving the working quality of the sensor. The infrared anti-reflection layer 600 ensures that the infrared transmittance of the signal transmission area 100c is greater than or equal to 90% in at least one wavelength range among 905nm±5nm, 850nm±5nm, and 1550nm±5nm. This guarantees high infrared transmittance of the window glass 3000 in the sensor's common operating wavelength range, ensuring the sensor can successfully receive and transmit optical signals, thereby improving the performance of the window glass 3000 and the driving safety of the vehicle 1000. Furthermore, the infrared anti-reflection layer 600 absorbs visible light; that is, the visible light transmittance of the infrared anti-reflection layer 600 is less than or equal to 50%.

[0050] The infrared antireflection layer 600 includes an infrared antireflection film. This film may contain one or more of sulfides and micro / nano structures. For example, the infrared antireflection film may include porous silica or a moth-eye membrane structure. It should be noted that the porous silica or moth-eye membrane is a micro / nano structure, which can effectively reduce the reflectivity of infrared light, thereby reducing infrared light reflection loss and enhancing infrared transmittance, thus improving the reliability of the vehicle window glass 3000.

[0051] In some other embodiments, the window glass 3000 may also include a filter. The filter is disposed on the first glass plate 110 and located within the signal transmission opening Q, covering at least a portion of the signal transmission area 100c. The filter may include an ink that has high transmittance in the near-infrared band and absorption capability in the visible light band (380nm~780nm). The filter's infrared transmittance is greater than its visible light transmittance, and the filter has an infrared transmittance greater than or equal to 90% in at least one wavelength range among 905nm±5nm, 850nm±5nm, and 1550nm±5nm, which meets the infrared transmittance requirements of the window glass 3000 in the signal transmission area 100c. Furthermore, the filter allows radio electromagnetic waves of specific frequencies to pass through efficiently while blocking visible light or stray radiation, thus improving the performance of the window glass 3000. For example, the filter may be a Spectre filter. TM Ink or Mimaki ink.

[0052] Please see Figure 6 , Figure 6 yes Figure 1 The diagram shows a plan view of the window glass 3000 in the vehicle 1000 in the fourth embodiment.

[0053] The difference between this embodiment and the first embodiment is that the vehicle window glass 3000 also includes a shielding layer 700. The shielding layer 700 is disposed on the first glass plate 110 and located in the shielding area 100d, covering the electrical connection element C, the sidewall of the signal transmission opening Q, and the sealing layer 500. In this embodiment, the shielding layer 700 is disposed on the second surface 112. In some other embodiments, the shielding layer 700 may be disposed on the first surface 111. The shielding layer 700 can shield the conductive connector 400, electrical connector 300, the sidewall of the signal transmission opening Q, and the sealing layer 500 located within the signal transmission opening Q, which helps improve the aesthetics of the vehicle window glass 3000 and enhances the experience of the driver and passengers. In some other embodiments, there may be multiple shielding layers 700, and the shielding layers 700 may be simultaneously disposed on the first surface 111 and the second surface 112 to further block signals from passing through the structure within the opening Q, thereby improving the aesthetics of the window glass 3000 and enhancing the driving experience for passengers.

[0054] Please see Figure 7 , Figure 7 yes Figure 1 A plan view of the window glass 3000 in the vehicle 1000 shown in the fifth embodiment.

[0055] The difference between this embodiment and the first embodiment is that the signal transmission opening Q penetrates the peripheral side surface of the glass body 100. Specifically, the signal transmission opening Q penetrates the peripheral side surface of the second glass plate 120, the peripheral side surface of the intermediate layer 130, and the peripheral side surface of the first heating element 140. For example, the signal transmission opening Q is semi-circular. In this case, a busbar 200 is located between the signal transmission opening Q and the visible area 100a.

[0056] Please see Figure 8 , Figure 8 yes Figure 1 A plan view of the vehicle window glass 3000 in the sixth embodiment of the vehicle 1000 shown.

[0057] The difference between this embodiment and the fifth embodiment is that the vehicle window glass 3000 is further provided with an infrared anti-reflection layer 600. The infrared anti-reflection layer 600 is disposed on the second surface 112 and covers at least a portion of the signal transmission area 100c.

[0058] Please see Figure 9 , Figure 9 yes Figure 1 A plan view of the window glass 3000 in the vehicle 1000 shown in the seventh embodiment.

[0059] The difference between this embodiment and the first embodiment is that the signal transmission opening Q is triangular in shape. In this embodiment, the signal transmission area 100c is triangular in shape. The shape of the signal transmission opening Q is adapted to the signal transmission area 100c, and the signal transmission opening Q completely covers the signal transmission area 100c and partially covers the shielding area 100d. This application does not limit the shape of the signal transmission opening Q.

[0060] Please see Figure 10 , Figure 10 yes Figure 1 The diagram shows a plan view of the vehicle window glass 3000 in the eighth embodiment.

[0061] The difference between this embodiment and the seventh embodiment is that the positions of the two busbars 200 are different. Along the length of the glass body 100, the two busbars 200 are located on opposite sides of the visible area 100a. One busbar 200 is electrically connected to an electrical connector 300 located within the signal transmission opening Q.

[0062] Please see Figure 11 , Figure 11 yes Figure 1 A plan view of the window glass 3000 in the vehicle 1000 shown in the ninth embodiment.

[0063] The difference between this embodiment and the seventh embodiment is that both busbars 200 extend into the signal transmission opening Q and are electrically connected to the two electrical connectors 300 respectively. At least a portion of each electrical connector 300 is located within the signal transmission opening Q. Each conductive joint 400 has a first connecting end 410 and a second connecting end 450. The first connecting ends 410 of the two conductive joints 400 are electrically connected to the two electrical connectors 300 respectively. The second connecting ends 450 of the two conductive joints 400 are both located within the signal transmission opening Q and are electrically connected to the positive and negative terminals of the external power supply T respectively. With this arrangement, it can be ensured that neither electrical connector 300 extends beyond the peripheral side of the glass body 100, thereby completely avoiding gaps between the peripheral side of the glass body 100 and the sheet metal parts of the vehicle 1000, further preventing water leakage problems, and contributing to further improving the structural stability and performance of the vehicle window glass 3000.

[0064] In some other embodiments, the window glass 3000 may also include a second heating element (not shown). The second heating element is disposed on the first glass plate 110 and located within the signal transmission opening Q. Specifically, the second heating element is disposed on the second surface 112. In this case, the window glass 3000 may also include a connecting connector (not shown). The connecting connector is located within the signal transmission opening Q and is spaced apart from the signal transmission area 100c, and is electrically connected to the second heating element, and is also used for electrical connection to an external power supply T. Alternatively, the window glass 3000 may also include a connecting wire (not shown). The connecting wire is electrically connected between the first heating element 140 and the second heating element. In this case, no additional connecting connector is required; the second heating element and the first heating element 140 can be connected together through the connecting wire, realizing that the two conductive connectors 400 control the electric heating function of the first heating element 140 and the heating function of the second heating element, thereby simultaneously realizing the electric heating defrosting and defogging functions of the visible area 100a and the signal transmission area 100c, which is beneficial to further improve the performance of the window glass 3000 and the driving experience of the occupants. When the window glass 3000 has an infrared anti-reflection layer 600 inside the signal transmission opening Q, the electric heating element can be stacked with the infrared anti-reflection layer 600.

[0065] The vehicle window glass 3000 proposed in this application has a signal transmission opening Q on the second glass plate 120. An electrical connection element C is electrically connected to the electric heating assembly B, and one end of the electrical connection element C for electrical connection to an external power source is located at the signal transmission opening Q. With this configuration, the electrical connection element C does not need to extend beyond the peripheral side of the glass body 100; instead, it extends directly to the signal transmission opening Q for electrical connection to the external power source. Therefore, external water will not seep between the first glass plate 110 and the second glass plate 120 along the peripheral side of the glass body 100. This improves the reliability of the vehicle window glass 3000, enhances its aesthetics, and improves the safety performance of the vehicle 1000.

[0066] The above descriptions are merely optional embodiments of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this application and are not intended to limit the patent scope of this application. At the same time, for those skilled in the art, equivalent structural transformations made based on the inventive concept of this application using the specification and drawings of this application, or direct / indirect applications in other related technical fields, are all included within the patent protection scope of this application.

Claims

1. A type of vehicle window glass, characterized in that, It includes a first glass plate, a second glass plate, and an intermediate layer, wherein the first glass plate and the second glass plate are connected through the intermediate layer; The vehicle window glass has a signal transmission area for transmitting optical signals, and the second glass plate has a signal transmission opening corresponding to the signal transmission area; The vehicle window glass also includes an electric heating component and an electrical connection element. The electric heating component is disposed between the first glass plate and the second glass plate. The electrical connection element is electrically connected to the electric heating component, and one end of the electrical connection element for electrical connection to an external power source is located at the signal transmission opening.

2. The vehicle window glass according to claim 1, characterized in that, The electrical connection element is located entirely within the signal transmission opening.

3. The vehicle window glass according to claim 1, characterized in that, The electric heating assembly includes a first heating element and a busbar. The first heating element is electrically connected to the busbar, and the electrical connection element is electrically connected to the busbar within the signal transmission opening.

4. The vehicle window glass according to claim 3, characterized in that, There are two busbars and two electrical connection elements. The two busbars are spaced apart, and the two electrical connection elements are spaced apart. Each electrical connection element is electrically connected between one of the busbars and the external power source.

5. The vehicle window glass according to claim 1, characterized in that, The infrared transmittance of the signal transmission region is greater than or equal to 85% in at least one of the wavelength ranges of 850nm±5nm, 905nm±5nm, and 1550nm±5nm.

6. The vehicle window glass according to claim 1, characterized in that, The vehicle window glass also has a shielding area surrounding the signal transmission area. The signal transmission opening completely covers the signal transmission area and partially covers the shielding area. The electric heating component and the electrical connection element are both located in the shielding area.

7. The vehicle window glass according to any one of claims 1 to 6, characterized in that, The vehicle window glass also includes an infrared anti-reflective layer, which is disposed on the first glass plate, located within the signal transmission opening, and covers at least a portion of the signal transmission area.

8. The vehicle window glass according to claim 7, characterized in that, The infrared transmittance of the signal transmission region is greater than or equal to 90% in at least one of the wavelength ranges of 850nm±5nm, 905nm±5nm, and 1550nm±5nm.

9. The vehicle window glass according to claim 7, characterized in that, The infrared antireflective layer includes an infrared antireflective film.

10. The vehicle window glass according to any one of claims 1 to 6, characterized in that, The vehicle window glass also includes a light filter, which is disposed on the first glass plate, located within the signal transmission opening, and covers at least a portion of the signal transmission area.

11. The vehicle window glass according to claim 10, characterized in that, The infrared transmittance of the filter is greater than its visible light transmittance.

12. The vehicle window glass according to claim 6, characterized in that, The vehicle window glass also has a viewing area, and the shielding area is arranged around the viewing area; The electric heating assembly includes a first heating element and a busbar. The first heating element is located between the first glass plate and the second glass plate. The first heating element is located in the visible area and is electrically connected to the busbar. The projection of the first heating element on the second glass plate is spaced apart from the signal transmission opening. The busbar is electrically connected to the electrical connection element.

13. The vehicle window glass according to claim 12, characterized in that, The vehicle window glass also includes a second heating element, which is disposed on the first glass plate and located within the signal transmission opening; The vehicle window glass also includes a connecting wire, which is electrically connected to the second heating element and the first heating element. Alternatively, the vehicle window glass also includes a connecting connector, which is electrically connected between the second heating element and the external power source, and is spaced apart from the signal transmission zone.

14. The vehicle window glass according to claim 6, characterized in that, The vehicle window glass also includes a shielding layer disposed on the first glass plate and located in the shielding area, covering the sidewall of the electrical connection element and the signal transmission opening.

15. The vehicle window glass according to claim 1, characterized in that, The window glass also includes a sealing layer, which is disposed on the side wall of the signal transmission opening and covers the side wall of the signal transmission opening.

16. The vehicle window glass according to claim 1, characterized in that, The electric heating component is misaligned with the signal transmission opening, or a portion of the electric heating component is located within the signal transmission opening.

17. A vehicle, characterized in that, It includes a vehicle body and a window glass as described in any one of claims 1 to 16, wherein the window glass is mounted on the vehicle body.

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