Vehicle window glass assembly and vehicle

Abstract

A vehicle window glass assembly, comprising a vehicle window glass (10), a conductive wire (30) and at least two busbars (50), wherein the vehicle window glass (10) is provided with a transparent area (11) and a non-transparent area (12), the non-transparent area (12) is connected to the transparent area (11) and is arranged around the transparent area (11), the conductive wire (30) and the at least two busbars (50) are located on the side of the vehicle window glass (10) facing the interior of a vehicle and are arranged in the non-transparent area (12), the at least two busbars (50) are electrically connected to two ends of the conductive wire (30), and the profile line of each busbar (50) is arc-shaped or rounded polygonal. The vehicle window glass assembly can prevent the vehicle window glass from cracking during high-pressure heating, thereby improving the use reliability of the vehicle window glass.

Description

Window glass components and vehicles

[0001] This application claims priority to Chinese Patent Application No. 202510337948.4, filed on March 21, 2025, entitled "Window Glass Assembly and Vehicle", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of automotive window glass technology, and more particularly to an automotive window glass assembly and a vehicle. Background Technology

[0003] With the development of the automotive industry, cars are becoming increasingly feature-rich. Existing car windows typically have heating wires to heat the camera and wiper areas, thus achieving defrosting and defogging. When using high voltage to heat the window glass, the heating wires heat up significantly faster, shortening defrosting time and enabling rapid defrosting and defogging. Since the heating wires are usually connected to a busbar, the temperature of the busbar also rises under high voltage heating. However, an unreasonable design of the window glass busbar makes the window glass highly susceptible to cracking during high-pressure heating, reducing the reliability of the window glass. Summary of the Invention

[0004] Embodiments of this application provide a vehicle window glass assembly and a vehicle that can prevent the vehicle window glass from cracking during the high-pressure heating process, thereby improving the reliability of the vehicle window glass.

[0005] In a first aspect, this application provides a vehicle window glass assembly for use in a vehicle. The vehicle window glass assembly includes a window glass, conductive wires, and at least two busbars. The window glass has a transparent area and a non-transparent area. The non-transparent area is connected to the transparent area and surrounds the transparent area. The conductive wires and the busbars are both located on the side of the window glass facing the interior of the vehicle and are disposed in the non-transparent area. The busbars are electrically connected to the ends of the conductive wires. The outlines of the busbars are all arc-shaped or rounded polygonal.

[0006] The outlines of the busbars are all circular, and the ratio of the distance C between the centers of two connected busbars to the diameter D of the busbar is greater than or equal to 2.

[0007] The window glass assembly further includes a connector located on the side of the window glass facing the interior of the vehicle. The connector includes at least two welding terminals, each of which is welded to a busbar, and the distance between the peripheral side of each welding terminal and the peripheral side of a busbar is greater than or equal to 2 mm.

[0008] The window glass also has an edge tension stress area, which is spaced apart from any of the busbars.

[0009] The edge tension region is located within a width range of 5 to 50 mm at the edge of the window glass and surrounds the transparent area.

[0010] The non-transparent area includes an edge area and a bump area. The edge area surrounds the transparent area, and the bump area is embedded in the transparent area and connected to the edge area. The conductive line includes a first conductive line portion and a second conductive line portion. The first conductive line portion is located in the bump area, and the second conductive line portion is located in the edge area and is electrically connected to the first conductive line portion.

[0011] At least two of the busbars are located in the bump area and are connected to the first conductive line portion, and are spaced apart from each other.

[0012] The conductive wire further includes a third conductive wire portion, which is electrically connected to the first conductive wire portion and spaced apart from the second conductive wire portion; or, the third conductive wire portion is located in the edge region and is electrically connected to one of the busbars.

[0013] In this configuration, at least two busbars are located in the protrusion region and are spaced apart from each other. One busbar is connected to the first conductive wire portion, and the other busbar is connected to the second conductive wire portion.

[0014] The edge region includes a first sub-region, a second sub-region, and a third sub-region. The second sub-region and the third sub-region are both connected to the first sub-region. The second sub-region and the third sub-region are spaced apart along the length of the vehicle window glass. A portion of the second conductive wire is located in the first sub-region, and another portion of the second conductive wire is located in the second sub-region; or, a portion of the second conductive wire is located in the first sub-region, and another portion of the second conductive wire is located in the third sub-region.

[0015] The edge region further includes a fourth sub-region, which connects the second and third sub-regions and is spaced apart from the first sub-region along the height of the window glass. A portion of the second conductive wire is located in the first sub-region, a portion of the second conductive wire is located in the second sub-region, and another portion of the second conductive wire is located in the fourth sub-region; or, a portion of the second conductive wire is located in the first sub-region, a portion of the second conductive wire is located in the third sub-region, and another portion of the second conductive wire is located in the fourth sub-region.

[0016] The length of the conductive wire is greater than or equal to 4m.

[0017] Wherein, at least a portion of the conductive wires are serrated in shape, or at least a portion of the conductive wires are wavy in shape.

[0018] The vehicle window glass also has a communication window area, which is embedded in the non-transparent area, and at least a portion of the conductive wire passes through and / or surrounds the communication window area.

[0019] The window glass assembly also includes a temperature monitor, which is installed on the side of the window glass facing the interior of the vehicle and located in the heating area, and is used to monitor the temperature of the communication window area.

[0020] The welding terminal includes a welding surface facing the window glass, and the distance between the welding surface and the surface of the window glass facing the interior of the vehicle along the thickness direction of the window glass assembly is greater than or equal to 0.2 mm.

[0021] The welding terminal further includes a welding body and an isolator. Along the thickness direction of the window glass assembly, the welding body is spaced apart from the window glass, and the isolator abuts between the window glass and the welding body.

[0022] The operating voltage U of the conductive wire is 12V≤U≤72V, or 24V≤U≤72V, or 36V≤U≤72V, or 46V≤U≤48V.

[0023] Secondly, this application also provides a vehicle, including a body and a window glass assembly as described in any of the preceding claims, the window glass assembly being mounted on the body.

[0024] In the vehicle window glass assembly provided in the embodiments of this application, by making the outline of each generatrix arc-shaped or rounded polygon, the outline of each generatrix is ​​free of sharp corners. This avoids the concentration of thermal stress generated during the welding heating process at the sharp corners, thereby preventing cracks or breakage of the vehicle window glass due to thermal stress concentration at the sharp corners during high-pressure heating or when it is laid flat or subjected to external forces such as being struck. This helps to improve the reliability of the vehicle window glass. Attached Figure Description

[0025] 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.

[0026] Figure 1 is a structural schematic diagram of a vehicle provided in this application;

[0027] Figure 2 is a structural schematic diagram of the window glass assembly in the vehicle shown in Figure 1 in the first embodiment;

[0028] Figure 3 is an enlarged schematic diagram of region A in Figure 2;

[0029] Figure 4 is an enlarged schematic diagram of region B in Figure 3;

[0030] Figures 5 and 6 are schematic diagrams of the structure of the busbar 50 shown in Figure 4 in other embodiments;

[0031] Figure 7 is a partial structural schematic diagram of the window glass assembly shown in Figure 2 in other embodiments;

[0032] Figure 8 is a partial structural schematic diagram of the welding terminal of the connector in the window glass assembly shown in Figure 3;

[0033] Figure 9 is a structural schematic diagram of the window glass assembly of the vehicle shown in Figure 1 in the second embodiment;

[0034] Figure 10 is an enlarged schematic diagram of region C shown in Figure 9;

[0035] Figure 11 is a structural schematic diagram of the window glass assembly of the vehicle shown in Figure 1 in the third embodiment;

[0036] Figure 12 is an enlarged schematic diagram of region D shown in Figure 11.

[0037] The names corresponding to the reference numerals in the figure are as follows: Vehicle 100, Body 110, Window glass assembly 120, Window glass 10, Bracket 20, Conductive wire 30, Connector 40, Busbar 50, Transparent area 11, Non-transparent area 12, Communication window area 13, Edge area 121, Protrusion area 122, First sub-area 121a, Second sub-area 121b, Third sub-area 121c, Fourth sub-area 121d, First line segment 301, Second line segment 302, Assembly hole 201, Mounting hole 202, Connector body 41, Welding terminal 42, Welding body 421, Isolator 422, Solder layer 423, Welding surface 42a, First conductive wire 31, Second conductive wire 32, Third conductive wire 33, Straight line segment 51, Curved line segment 52. Detailed Implementation

[0038] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0039] Please refer to Figure 1, which is a structural schematic diagram of a vehicle 100 provided in this application.

[0040] The vehicle 100 provided in the embodiments of this application can be, but is not limited to, a sedan, truck, pickup truck, commercial vehicle, bus, or SUV; this application makes no limitation thereto. In this embodiment, the vehicle 100 may include a body 110 and a window glass assembly 120. Exemplarily, the body 110 is a sheet metal part. The window glass assembly 120 is mounted on the body 110. In this embodiment, the window glass assembly 120 can be used as the windshield of the vehicle 100, or as a side window or rear windshield of the vehicle 100, etc.; the embodiments of this application make no limitation thereto.

[0041] Please refer to Figures 2, 3 and 4. Figure 2 is a structural schematic diagram of the window glass assembly 120 in the vehicle 100 shown in Figure 1 in the first embodiment. Figure 3 is an enlarged schematic diagram of area A in Figure 2. Figure 4 is an enlarged schematic diagram of area B in Figure 3.

[0042] In this embodiment, the window glass assembly 120 includes a window glass 10, a bracket 20, a conductive wire 30, a connector 40, and at least two busbars 50. The bracket 20, conductive wire 30, connector 40, and at least two busbars 50 are all located on the side of the window glass 10 facing the interior of the vehicle 100. The thickness of the window glass 10 is greater than or equal to 1.6 mm. For example, the thickness of the window glass 10 is 2.1 mm. This configuration provides the window glass 10 with sufficient structural strength, preventing cracks or breakage during welding of the connector 40, thereby enabling high-voltage heating of the window glass 10. It should be noted that the thickness of the window glass 10 being greater than or equal to 1.6 mm means that the thickness of a single pane of glass in the window glass 10 is greater than or equal to 1.6 mm, preferably 2.1 mm. In this embodiment, the window glass 10 is laminated glass. In this case, the thickness of the inner glass pane in the window glass 10 is greater than or equal to 1.6 mm, preferably 2.1 mm.

[0043] Specifically, the vehicle window glass 10 has a transparent area 11, a non-transparent area 12, and a communication window area 13. The transparent area 11 provides a visible area for the driver to observe the external environment, while the communication window area 13 provides a signal transmission area for sensors and other devices to collect data on the external environment.

[0044] The non-transparent area 12 is connected to and surrounds the transparent area 11. Decorative components and functional parts on the window glass 10 can be installed in the non-transparent area 12. The non-transparent area 12 can shield these components, thereby improving the overall aesthetics of the window glass 10 and protecting them from damage such as UV aging.

[0045] Specifically, the non-transparent area 12 includes an edge area 121 and a protrusion area 122. The edge area 121 surrounds the transparent area 11. In this embodiment, the edge area 121 includes a first sub-area 121a, a second sub-area 121b, a third sub-area 121c, and a fourth sub-area 121d. Along the length of the window glass 10, the second sub-area 121b and the third sub-area 121c are spaced apart. The fourth sub-area 121d connects the second sub-area 121b and the third sub-area 121c. Along the height of the window glass 10, the fourth sub-area 121d is spaced apart from the first sub-area 121a. The protrusion area 122 is embedded in the transparent area 11 and connected to the edge area 121. Specifically, the protrusion area 122 is connected to the first sub-area 121a of the edge area 121.

[0046] In this embodiment, the communication window area 13 is embedded in the non-transparent area 12. Specifically, the communication window area 13 is embedded in the protrusion area 122 of the non-transparent area 12. The communication window area 13 can be used as a signal transmission window for devices such as cameras or rain sensors of the vehicle 100. For example, ambient light can pass through the communication window area 13 to enter the camera, enabling the camera to capture and identify obstacles outside the vehicle. The rain sensor can adjust the wiper speed according to the amount of rain falling on the communication window area 13, providing the driver with a good field of vision, thereby greatly improving the safety and convenience of driving the vehicle 100 in rainy weather. In this embodiment, the communication window area 13 is transparent so that devices such as cameras or rain sensors of the vehicle 100 can acquire signals through the communication window area 13.

[0047] In addition, the window glass 10 also has an edge stress region (not shown). The edge tensile stress region is located within a width range of 5mm to 50mm at the edge of the window glass 10 and surrounds the transparent area 11. It should be noted that the aforementioned width range refers to the range formed by taking the edge position of the window glass 10 as 0mm and extending towards the center of the window glass 10. The edge tensile stress region can be equal to the range of the aforementioned width range, or it can be any range smaller than the aforementioned width range. For example, the edge tensile stress region can specifically be located within a width range of 10mm to 30mm at the edge of the window glass 10.

[0048] Please refer to Figures 3 and 4. The conductive wire 30, connector 40, and at least two busbars 50 are all located in the non-transparent area 12. The at least two busbars 50 can have the same or similar structures. In this embodiment, there are two busbars 50. For example, both busbars 50 are formed by printing silver paste onto the surface of the window glass 10.

[0049] Each busbar 50 is spaced apart from the edge tension stress region of the window glass 10. In this embodiment, at least two busbars 50 are located on the side of the edge tension stress region facing the transparent area 11. Specifically, at least two busbars 50 are located in the protrusion region 122. For example, the edge tension stress region can be located within a width range of 10mm to 30mm at the edge of the window glass 10, where the minimum distance between the peripheral side of each busbar 50 and the edge of the window glass 10 is greater than or equal to 30mm.

[0050] With this configuration, the busbar 50 can avoid the edge tensile stress area of ​​the window glass 10, preventing the tensile stress in the edge tensile stress area from superimposing with the tensile stress generated by the busbar 50 after the window glass 10 is formed and cooled. This can prevent the structural strength of the location where the busbar 50 is set on the window glass 10 from being further weakened, thereby helping to reduce the risk of cracking of the window glass 10 and improve the yield of the finished product of the window glass assembly 120.

[0051] In some other embodiments, each busbar 50 is located on the side of the edge tensile stress region away from the transparent area 11. For example, the edge tensile stress region can specifically be located within a width range of 15mm to 30mm at the edge of the window glass 10, where the minimum distance between the peripheral side of each busbar 50 and the edge of the window glass 10 is greater than 0mm and less than or equal to 12mm. With this arrangement, the busbar 50 can also avoid the edge tensile stress region of the window glass 10, preventing the tensile stress in the edge tensile stress region from superimposing with the tensile stress generated by the busbar 50 after the window glass 10 is formed and cooled. This can prevent further weakening of the structural strength at the location where the busbar 50 is located on the window glass 10, thereby helping to reduce the risk of cracking of the window glass 10 and improve the yield of the finished window glass assembly 120.

[0052] Please refer to Figures 4 to 6. Figures 5 and 6 are schematic diagrams of the structure of the busbar 50 shown in Figure 4 in other embodiments.

[0053] In this embodiment, the outline of each busbar 50 is arc-shaped or a rounded polygon. With this configuration, the outline of each busbar 50 has no sharp corners, which can prevent the thermal stress generated during the welding heating process from concentrating at the sharp corners. This can prevent the window glass 10 from cracking or breaking due to thermal stress concentration at the sharp corners, thereby helping to improve the reliability of the window glass 10.

[0054] In this embodiment, when the outline of each busbar 50 is arc-shaped, as shown in Figure 4, the outline of each busbar 50 can be circular. For example, the diameter of the outline of each busbar 50 is equal. In other embodiments, the diameter of the outline of each busbar 50 may not be equal. In this embodiment, the ratio of the distance C between the centers of the outlines of two adjacent busbars 50 to the diameter D of the outline of the busbar 50 is greater than or equal to 2. This setting avoids the problem of weakened structural strength of the window glass 10 due to the overlap of at least two busbars 50, ensuring better reliability of the window glass 10. Simultaneously, it also provides sufficient operating space for printing the busbars 50 and subsequent welding operations.

[0055] In some other embodiments, when the outline of each busbar 50 is arc-shaped, as shown in FIG. 5, the outline of each busbar 50 may also be elliptical. In other embodiments, as shown in FIG. 6, when the outline of each busbar 50 is a rounded polygon, the outline of each busbar 50 includes multiple straight line segments 51 and multiple arc segments 52. The multiple straight line segments 51 are spaced apart from each other. Each arc segment 52 connects the ends of two adjacent arc segments 52. With this configuration, the outline of each busbar 50 may also be free of sharp corners, avoiding the concentration of thermal stress generated during welding heating at sharp corners. This prevents cracks or breakage of the window glass 10 due to thermal stress concentration at sharp corners, thereby improving the reliability of the window glass 10.

[0056] Please refer to Figures 3 and 7. Figure 7 is a partial structural schematic diagram of the window glass assembly 120 shown in Figure 2 in other embodiments.

[0057] In this embodiment, the length of the conductive wire 30 is greater than or equal to 4m. For example, the conductive wire 30 is formed using silver paste printing. In this embodiment, the conductive wire 30 serves as a heating wire to integrate heating functionality into the vehicle window glass 10, thereby enabling the vehicle window glass assembly 120 to defrost and defog. The operating voltage U of the conductive wire 30 is 12V≤U≤72V, or 24V≤U≤72V, or 36V≤U≤72V, or 46V≤U≤48V. It should be noted that the operating voltage of the conductive wire 30 is the voltage used to guide the wire 30 when heating the vehicle window glass 10.

[0058] Understandably, for existing 12-14V low-voltage heating solutions, the length of the heating wire is generally less than 4m. Under 12-14V voltage conditions, if the heating wire length exceeds 4m, it will lead to insufficient heating power and a longer defrosting and defogging time. However, if the heating voltage is directly increased while keeping the heating wire length unchanged, although the heating efficiency can be greatly improved, the rapid temperature rise can easily lead to local hot spots and uneven heat distribution, especially at the busbar welding position, which can easily generate greater thermal stress. Therefore, this application reasonably sets the length of the conductive wire 30 to match the resistance of the conductive wire 30 with the heating voltage, extending the length of the conductive wire 30 to more than 4m. This not only enables rapid defrosting and defogging in a short time, but also avoids the rapid local temperature rise of the conductive wire 30 during high-pressure heating. This prevents the window glass 10 from cracking due to excessively high hot spots on the conductive wire 30 during high-pressure heating, thereby helping to reduce the risk of cracking of the window glass 10 under high-pressure heating conditions and improving the reliability of the window glass.

[0059] Specifically, the conductive wire 30 is disposed in the protrusion region 122 and electrically connected between at least two busbars 50. In other words, at least two busbars 50 are electrically connected to the ends of the conductive wire 30. As shown in Figure 3, when the length of the conductive wire 30 is extended to more than 4m, the rationality of the overall arrangement of the conductive wire 30 needs to be considered. Due to the area limitation of the non-transparent area 12, the arrangement of the conductive wire 30 must satisfy that its position in the non-transparent area 12 is completely covered by the non-transparent area 12 and does not extend into the transparent area 11, while also ensuring that its overall distribution is uniform. Otherwise, there will be a situation of concentrated hot spots in local areas. Therefore, in some embodiments of this application, at least some of the conductive wires 30 are wavy in shape. Specifically, the conductive wire 30 includes a first segment portion 301 and a second segment portion 302. The first segment portion 301 is connected to a busbar 50. For example, the first segment portion 301 is wavy. The second segment portion 302 is connected to the first segment portion 301 and connected to another busbar 50. For example, the second line segment 302 is a straight line segment. In this embodiment, there are multiple first line segment portions 301 and multiple second line segment portions 302. The multiple first line segment portions 301 and multiple second line segment portions 302 are alternately arranged. In some other embodiments, as shown in FIG5, at least a portion of the conductive line 30 may also be serrated. Specifically, the first line segment portion 301 of the conductive line 30 is serrated.

[0060] In this embodiment, at least a portion of the conductive wire 30 passes through and / or surrounds the communication window area. In some embodiments, the window glass assembly 120 may also include a temperature monitor (not shown), which is mounted on the side of the window glass 10 facing the interior of the vehicle 100 and located in the heating area, and is used to monitor the temperature of the communication window area 13. Furthermore, the conductive wire 30 also surrounds and forms a heating area (not shown). This heating area at least covers the communication window area 13. In this case, the temperature monitor also monitors the temperature of the heating area. When the temperature monitor detects that the temperature of the heating area exceeds 70°C, the temperature monitor automatically cuts off the circuit between the connector 40 and the power supply of the vehicle 100, achieving automatic power-off and preventing the temperature of the heating area from becoming too high, thereby helping to ensure the safety and reliability of the window glass assembly 120.

[0061] Please refer again to Figures 3 and 4. The bracket 20 is installed in the protruding area 122 of the vehicle window glass 10. The bracket 20 has a mounting hole 201 and a mounting hole 202. Both the mounting hole 201 and the mounting hole 202 penetrate the bracket 20 along its thickness direction and are spaced apart from each other. The mounting hole 202 is used to mount functional devices such as rain sensors or cameras from the vehicle 100.

[0062] The assembly hole 201 exposes at least two busbars 50 to facilitate subsequent welding of the at least two busbars 50 to the connector 40. In this embodiment, the wall surface of the assembly hole 201 and the wall surface of the at least two busbars 50 are spaced apart to provide sufficient operating space for subsequent welding of the connector 40 to the at least two busbars 50, ensuring good welding reliability between the connector 40 and the at least two busbars 50. In some other embodiments, there may be two assembly holes 201, spaced apart from each other. In this case, one assembly hole 201 exposes one busbar 50, and the other assembly hole 201 exposes another busbar 50, facilitating subsequent welding of the connector 40 to the busbars 50.

[0063] Please refer to Figures 4 and 8. Figure 8 is a partial structural schematic diagram of the welding terminal 42 of the connector 40 in the window glass assembly 120 shown in Figure 3.

[0064] The connector 40 is installed on the side of the bracket 20 opposite to the window glass 10. Specifically, the connector 40 includes a connector body 41 and at least two welding terminals 42. The connector body 41 is installed on the bracket 20. The at least two welding terminals 42 are each connected to one end of the connector body 41 along its length. Each welding terminal 42 is welded to a busbar 50, and the distance between the peripheral side of each welding terminal 42 and the peripheral side of the busbar 50 is greater than or equal to 2mm. This arrangement ensures that the distance between the peripheral side of each welding terminal 42 and the peripheral side of the busbar 50 is sufficiently large, preventing solder from overflowing from the busbar 50 during welding. This avoids the force generated by the cooling solder pulling on the window glass 10, preventing cracks or breakage of the window glass 10, and thus improving the yield of the window glass assembly 120.

[0065] In this embodiment, the welding terminal 42 includes a welding surface 42a facing the window glass 10. Along the thickness direction of the window glass assembly 120, the distance between the welding surface 42a and the surface of the window glass 10 facing the interior of the vehicle 100 is greater than or equal to 0.2 mm. The welding terminal 42 also includes a welding body 421, an isolator 422, and a solder layer 423. The welding body 421 includes the aforementioned welding surface 42a. Along the thickness direction of the window glass assembly 120, the welding body 421 is spaced apart from the window glass 10. The isolator 422 abuts against the window glass 10 and the welding body 421. That is, the thickness of the isolator 422 is greater than or equal to 0.2 mm. Specifically, the isolator 422 is sleeved on the welding body 421. For example, the isolator 422 is adhesive tape. The solder layer 423 is disposed on the welding surface 42a of the welding body 421 and connected to the window glass 10. For example, the solder layer 423 is solder.

[0066] It is understandable that by setting an isolator 422 on the welding terminal 42 of the connector 40 and having the isolator 422 abut against the welding body 421 and the window glass 10, a certain gap can be created between the welding body 421 and the window glass 10. After the solder layer 423 is melted, this setting can prevent the welding body 421 from directly abutting against the window glass 10, thereby reducing the impact of welding stress on the window glass 10, improving the impact resistance of the welding terminal 42 of the welding connector 40 of the window glass 10, preventing cracks or breakage of the window glass 10 after welding, and thus helping to improve the yield of the finished product of the window glass assembly 120.

[0067] Please refer to Figures 9 and 10. Figure 9 is a structural schematic diagram of the window glass assembly 120 of the vehicle 100 shown in Figure 1 in the second embodiment, and Figure 10 is an enlarged schematic diagram of region C shown in Figure 9.

[0068] The window glass assembly 120 shown in this embodiment differs from the window glass assembly 120 shown in the first embodiment in that the conductive wire 30 includes a first conductive wire portion 31 and a second conductive wire portion 32. The first conductive wire portion 31 is located in the protrusion region 122. The second conductive wire portion 32 is located in the edge region 121 and is electrically connected to the first conductive wire portion 31.

[0069] In this embodiment, the first conductive wire portion 31 is connected to a busbar 50, and the second conductive wire portion 32 is connected to another busbar 50. Specifically, a portion of the second conductive wire portion 32 is located in the first sub-region 121a, a portion of the second conductive wire portion 32 is located in the second sub-region 121b, and another portion of the second conductive wire portion 32 is located in the fourth sub-region 121d; alternatively, a portion of the second conductive wire portion 32 is located in the first sub-region 121a, a portion of the second conductive wire portion 32 is located in the third sub-region 121c, and another portion of the second conductive wire portion 32 is located in the fourth sub-region 121d.

[0070] It is understandable that by extending the second conductive wire portion 32 of the conductive wire 30 from the first sub-region 121a of the window glass 10 to the fourth sub-region 121d of the window glass 10, the length of the conductive wire 30 can be extended to more than 4m. This can prevent the local temperature of the conductive wire 30 from rising rapidly during high-pressure heating, thus preventing the window glass 10 from cracking due to excessively high hot spots of the conductive wire 30 during high-pressure heating. This helps to reduce the risk of cracking of the window glass 10 under high-pressure heating conditions and improve the reliability of the window glass. It can also achieve rapid defrosting and defogging in a short time, improve the defrosting and defogging efficiency of the window glass assembly 120, and reduce energy loss.

[0071] In some other embodiments, a portion of the second conductive wire portion 32 is located in the first sub-region 121a, and another portion of the second conductive wire portion 32 is located in the second sub-region 121b; or, a portion of the second conductive wire portion 32 is located in the first sub-region 121a, and another portion of the second conductive wire portion 32 is located in the third sub-region 121c, thereby extending the length of the conductive wire 30 to more than 4m.

[0072] Please refer to Figures 11 and 12. Figure 11 is a structural schematic diagram of the window glass assembly 120 of the vehicle 100 shown in Figure 1 in the third embodiment, and Figure 12 is an enlarged schematic diagram of region D shown in Figure 11.

[0073] The difference between the window glass assembly 120 shown in this embodiment and the window glass assembly 120 shown in the second embodiment is that both busbars 50 are connected to the first conductive wire portion 31. In this case, a portion of the second conductive wire portion 32 is located in the first sub-region 121a of the edge region 121 and is electrically connected to the first conductive wire portion 31. Another portion of the second conductive wire portion 32 is located in the third sub-region 121c.

[0074] In this configuration, under high-pressure heating conditions, the second conductive wire portion 32 of the conductive wire 30 can share some of the heat generated by the first conductive wire portion 31, preventing excessively high local hot spots in the first conductive wire portion 31. This prevents the window glass 10 from cracking due to excessively high hot spots in the conductive wire 30 during high-pressure heating, thereby reducing the risk of cracking under high-pressure heating conditions and improving the reliability of the window glass. It also enables rapid defrosting and defogging in a short time, improving the defrosting and defogging efficiency of the window glass assembly 120 and reducing energy loss. In addition, the second conductive wire portion 32 can serve as an antenna to enable the window glass assembly 120 to receive signals.

[0075] In this embodiment, the conductive line 30 further includes a third conductive line portion 33. The third conductive line portion 33 is located in the edge region 121 and is electrically connected to a busbar 50. With this configuration, the third conductive line portion 33 can disperse some of the heat generated by the busbar 50, preventing excessive thermal stress on the busbar 50 under high-pressure heating conditions. This prevents the busbar 50 from weakening the window glass 10, thereby helping to reduce the risk of cracking of the window glass 10 under high-pressure heating conditions and improving the reliability of the window glass assembly 120. Furthermore, the third conductive line portion 33 can also serve as an antenna to enable the window glass assembly 120 to receive signals.

[0076] In some other embodiments, the third conductive wire portion 33 is electrically connected to the first conductive wire portion 31 and is spaced apart from the second conductive wire portion 32. With this arrangement, under high-pressure heating conditions, the third conductive wire portion 33 can also share some of the heat from the first conductive wire portion 31, accelerating heat dissipation and further preventing excessively high local hot spots on the first conductive wire portion 31. This prevents the window glass 10 from cracking due to excessively high hot spots on the conductive wire 30 during high-pressure heating, reducing the risk of cracking of the window glass 10 under high-pressure heating conditions and improving the reliability of the window glass.

[0077] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A vehicle window glass assembly for use in a vehicle, characterized in that, The vehicle window glass assembly includes a window glass, a conductive wire, and at least two busbars. The window glass has a transparent area and a non-transparent area. The non-transparent area is connected to the transparent area and is arranged around the transparent area. The conductive wire and the busbars are both located on the side of the window glass facing the interior of the vehicle and are both located in the non-transparent area. The busbars are electrically connected to the ends of the conductive wires. The outlines of the busbars are all arc-shaped or rounded polygons.

2. The vehicle window glass assembly according to claim 1, characterized in that, The outline of the busbar is circular, and the ratio of the distance C between the centers of two adjacent outlines of the busbar to the diameter D of the outline of the busbar is greater than or equal to 2.

3. The vehicle window glass assembly according to claim 1 or 2, characterized in that, The window glass assembly also includes a connector located on the side of the window glass facing the interior of the vehicle. The connector includes at least two welding terminals, each of which is welded to a busbar, and the distance between the peripheral side of each welding terminal and the peripheral side of a busbar is greater than or equal to 2 mm.

4. The vehicle window glass assembly according to claim 1, characterized in that, The window glass also has an edge tension stress region, which is spaced apart from any of the busbars.

5. The vehicle window glass assembly according to claim 4, characterized in that, The edge tension region is located within a width range of 5 to 50 mm at the edge of the window glass and surrounds the transparent area.

6. The vehicle window glass assembly according to claim 1, characterized in that, The non-transparent area includes an edge area and a bump area. The edge area surrounds the transparent area, and the bump area is embedded in the transparent area and connected to the edge area. The conductive wire includes a first conductive wire portion and a second conductive wire portion. The first conductive wire portion is disposed in the protrusion region, and the second conductive wire portion is disposed in the edge region and is electrically connected to the first conductive wire portion.

7. The vehicle window glass assembly according to claim 6, characterized in that, At least two of the busbars are located in the bump area and are connected to the first conductive line portion, and are spaced apart from each other.

8. The vehicle window glass assembly according to claim 7, characterized in that, The conductive line further includes a third conductive line portion, which is electrically connected to the first conductive line portion and spaced apart from the second conductive line portion; or, the third conductive line portion is located in the edge region and is electrically connected to one of the busbars.

9. The vehicle window glass assembly according to claim 6, characterized in that, At least two busbars are provided in the bump area and are spaced apart from each other. One busbar is connected to the first conductive wire portion and the other busbar is connected to the second conductive wire portion.

10. The vehicle window glass assembly according to claim 9, characterized in that, The edge region includes a first sub-region, a second sub-region, and a third sub-region. The second sub-region and the third sub-region are both connected to the first sub-region. Along the length of the window glass, the second sub-region and the third sub-region are spaced apart. A portion of the second conductive line is located in the first sub-region, and another portion of the second conductive line is located in the second sub-region; Alternatively, a portion of the second conductive line portion may be located in the first sub-region, and another portion of the second conductive line portion may be located in the third sub-region.

11. The vehicle window glass assembly according to claim 10, characterized in that, The edge region also includes a fourth sub-region, which is connected between the second sub-region and the third sub-region. Along the height direction of the window glass, the fourth sub-region is spaced apart from the first sub-region. A portion of the second conductive line is located in the first sub-region, a portion of the second conductive line is located in the second sub-region, and another portion of the second conductive line is located in the fourth sub-region; Alternatively, a portion of the second conductive line portion may be located in the first sub-region, a portion of the second conductive line portion may be located in the third sub-region, and another portion of the second conductive line portion may be located in the fourth sub-region.

12. The vehicle window glass assembly according to claim 1, characterized in that, The length of the conductive wire is greater than or equal to 4m.

13. The vehicle window glass assembly according to claim 1, characterized in that, At least a portion of the conductive wires are serrated in shape, or at least a portion of the conductive wires are wavy in shape.

14. The vehicle window glass assembly according to claim 1, characterized in that, The vehicle window glass also has a communication window area, which is embedded in the non-transparent area, and at least a portion of the conductive wire passes through and / or is arranged around the communication window area.

15. The vehicle window glass assembly according to claim 14, characterized in that, The window glass assembly also includes a temperature monitor, which is installed on the side of the window glass facing the interior of the vehicle and is used to monitor the temperature of the communication window area.

16. The vehicle window glass assembly according to claim 3, characterized in that, The welding terminal includes a welding surface facing the window glass, and the distance between the welding surface and the surface of the window glass facing the interior of the vehicle is greater than or equal to 0.2 mm along the thickness direction of the window glass assembly.

17. The vehicle window glass assembly according to claim 16, characterized in that, The welding terminal also includes a welding body and an isolator. Along the thickness direction of the window glass assembly, the welding body is spaced apart from the window glass, and the isolator abuts between the window glass and the welding body.

18. The vehicle window glass assembly according to claim 1, characterized in that, The operating voltage U of the conductive wire is 12V≤U≤72V, or 24V≤U≤72V, or 36V≤U≤72V, or 46V≤U≤48V.

19. The vehicle window glass assembly according to claim 1, characterized in that, The outline of the busbar has no sharp corners.

20. A vehicle, characterized in that, It includes a vehicle body and a window glass assembly as claimed in any one of claims 1 to 19, the window glass assembly being mounted on the vehicle body.

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