window assembly and vehicle

Abstract

This application provides a vehicle window assembly and a vehicle. The vehicle window assembly includes a window glass and a sensor assembly. The window glass includes a glass substrate and a first heating element disposed on the glass substrate. The glass substrate has a first window area and a second window area with overlapping regions. The sensor assembly is disposed on one side of the window glass and includes a first sensor and a second sensor. The first heating element avoids the second window area and is at least partially disposed on the first window area, and at least corresponds to heating the non-overlapping area of ​​the first window area. The window assembly also includes a second heating element disposed on one side of the window glass. The second heating element avoids the transmission path of the optical signals of the first and second sensors and is at least partially spaced from the window glass. The second heating element at least corresponds to heating the second window area. By using direct heating with the first heating element and radiative heating with the second heating element, the problem of contradictory heating methods for the overlapping areas of the first and second window areas is solved.

Description

Technical Field

[0001] This application belongs to the field of glass heating technology, specifically relating to car window assemblies and vehicles. Background Technology

[0002] At low temperatures, water vapor or frost easily forms on vehicle glass surfaces, affecting the line of sight of cameras and LiDAR sensors mounted on one side of the glass. Currently, heating wires are typically added to the glass to heat it. Cameras and LiDAR sensors usually have their own signal transmission areas on the glass; the camera area generally uses a silver paste solution, while the LiDAR area generally uses an enameled wire solution. However, there is some overlap between the camera and LiDAR areas. For these overlapping areas, using either a silver paste solution or an enameled wire solution will affect the signal transmission performance of the other sensor. Summary of the Invention

[0003] In view of this, the first aspect of this application provides a vehicle window assembly, the vehicle window assembly including a window glass and a sensor assembly; wherein,

[0004] The vehicle window glass includes a glass substrate and a first heating element disposed on the glass substrate. The glass substrate has a first window area and a second window area, and there is an overlapping area between the first window area and the second window area.

[0005] The sensor assembly is located on one side of the vehicle window glass, and the sensor assembly includes a first sensor and a second sensor;

[0006] The first heating element avoids the second window area and is at least partially disposed in the first window area, and the first heating element at least corresponds to heating the non-overlapping area of ​​the first window area;

[0007] The window assembly further includes a second heating element disposed on one side of the window glass. The second heating element avoids the transmission path of the optical signals of the first sensor and the second sensor and is at least partially spaced from the window glass. The second heating element heats at least the second window area.

[0008] The window assembly further includes a bracket, which is fixedly connected to the inner surface of the glass substrate. The first sensor and the second sensor are both disposed inside the bracket and spaced apart from the glass substrate. The second heating element is disposed on the inner or outer surface of the bracket.

[0009] In the horizontal direction, the second heating element is closer to the glass substrate than both the first and second sensors.

[0010] In the vertical direction, the second heating element is disposed on the inner surface of the bracket.

[0011] The power of the second heating element is 5W-30W.

[0012] The area of ​​the second window region is 0.005m². 2 -0.03m 2 .

[0013] The angle between the glass substrate and the horizontal plane is 15°-40°.

[0014] The second heating element in the horizontal direction includes a first end and a second end disposed opposite to each other. The vertical distance from the first end to the glass substrate is less than the vertical distance from the second end to the glass substrate, and the heat generation of the second end is greater than the heat generation of the first end.

[0015] The length of the first end is less than the length of the second end.

[0016] The heating power of the first end is less than the heating power of the second end.

[0017] The first sensor includes one of a lidar and a camera, and the second sensor includes the other of a lidar and a camera.

[0018] When the first sensor is a camera, the first heating element is a silver paste wire with a wire diameter of 0.3mm-0.6mm.

[0019] Wherein, when the first sensor is a lidar, the first heating element is an enameled wire with a wire diameter of 0.05mm-0.2mm.

[0020] The second heating element heats the second window area by thermal radiation, and the second heating element includes a heating film or an infrared heating module.

[0021] The window assembly is used to install on the vehicle body, and the first sensor and the second sensor are arranged along the height direction of the vehicle body, or the first sensor and the second sensor are arranged along the width direction of the vehicle body.

[0022] When the temperature of the glass substrate is lower than a preset temperature, both the first heating element and the second heating element are heated.

[0023] A second aspect of this application provides a vehicle comprising a body and a window assembly as provided in the first aspect of this application, the window assembly being mounted on the body.

[0024] The window assembly provided in the first aspect of this application uses a first heating element to directly heat the non-overlapping area of ​​the first window region, and a second heating element to heat the entire area of ​​the second window region via radiation. This satisfies the heating, defogging, and defrosting requirements of both the first and second window regions, while also resolving the conflicting heating methods for the overlapping areas. Simultaneously, it reduces the power and area required for the heating module while maintaining heating effectiveness, avoiding sensor overheating. Furthermore, it reduces the cost of the heating system while ensuring system reliability, thus achieving a low-cost, high-efficiency, and low-risk glass heating solution.

[0025] The vehicle provided in the second aspect of this application adopts the window assembly provided in the first aspect of this application. It uses a first heating element to heat the non-overlapping area of ​​the first window area and a second heating element disposed on one side of the glass substrate to radiate heat the second window area. This solves the problem of heating the glass substrate when the window areas of the first sensor and the second sensor overlap, and improves the user experience. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0027] Figure 1 This is a schematic diagram of a window assembly according to one embodiment of this application.

[0028] Figure 2 for Figure 1 A magnified view of a portion of the window assembly shown.

[0029] Figure 3 This is a side view of the window assembly according to one embodiment of this application.

[0030] Figure 4 This is a top view of the window assembly according to one embodiment of this application.

[0031] Figure 5 This is a schematic diagram of a first window area, a second window area, and an overlapping area on a glass substrate according to an embodiment of this application.

[0032] Figure 6 This is a schematic diagram of the first heating element and the second heating element on the glass substrate in one embodiment of this application.

[0033] Figure 7 This is a schematic diagram of a sensor assembly according to one embodiment of this application.

[0034] Figure 8 This is a schematic diagram of a first window area, a second window area, and an overlapping area on a glass substrate in another embodiment of this application.

[0035] Figure 9 This is a schematic diagram of the first heating element and the second heating element on a glass substrate in another embodiment of this application.

[0036] Figure 10 This is a side view of the window assembly according to another embodiment of this application.

[0037] Figure 11 This is a top view of the window assembly in another embodiment of this application.

[0038] Figure 12 This is a front view of a vehicle according to one embodiment of this application.

[0039] Figure 13 for Figure 12 A magnified view of a portion of the vehicle shown.

[0040] Figure 14 This is a front view of the vehicle according to another embodiment of this application.

[0041] Figure 15 for Figure 14 A magnified view of a portion of the vehicle shown.

[0042] Figure 16 This is a schematic diagram of a first window area, a second window area, and an overlapping area on a glass substrate in another embodiment of this application.

[0043] Label Explanation:

[0044] Window assembly-1, vehicle-2, body-3, window glass-10, glass substrate-11, first window area-111, second window area-112, overlapping area-113, first heating element-12, printing edge-13, sensor assembly-20, first sensor-21, second sensor-22, second heating element-23, first end-231, second end-232, bracket-24. Detailed Implementation

[0045] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0046] Before introducing the technical solution provided in this application, let's go over the technical issues in the related technologies in detail.

[0047] Cameras and LiDAR sensors are typically installed on the inside of a vehicle's windshield as driver assistance sensors. In low temperatures, the windshield surface is prone to fogging or frost, affecting the visibility of the cameras and LiDAR. Therefore, vehicle windshields usually require heating to defrost or defog. There are four main methods for windshield heating: First, using silver paste wire laid on the glass surface or inside the glass; this method is low-cost and highly reliable. Second, using enameled wire laid on the glass surface or inside the glass; this method has moderate costs, but the small wire diameter may cause optical diffraction. Third, using a transparent conductive film laid on the glass surface or inside the glass; however, the technology for transparent conductive films is less mature, resulting in higher costs. Fourth, using a heating module for radiant heating; the heating module is located on the outside of the glass and heats it through thermal radiation. While this technology is mature, the heating efficiency is relatively low due to the radiant method, resulting in higher costs.

[0048] When a vehicle uses both LiDAR and cameras as sensors for assisted driving, each has its own signal transmission path. The area through which these paths pass through the glass is the signal window region for each sensor. The LiDAR signal window typically uses an enameled wire heating scheme, which has less impact on reflection, while the camera signal window typically uses a silver paste heating scheme, which has less impact on diffraction. However, to avoid affecting the viewing angle of the windshield and to reduce the overall size of multiple sensors, LiDAR and cameras are usually placed adjacent to each other. This results in partial overlap between the LiDAR and camera signal windows. In the overlapping area, if a silver paste heating scheme is used, the reflectivity of the silver paste will affect the LiDAR's signal transmission. If an enameled wire heating scheme is used, the diffraction of light caused by the enameled wire will affect the camera's signal transmission. In other words, in the overlapping area, using either heating scheme alone will affect the signal transmission capability of the other sensor.

[0049] In view of this, in order to solve the above problems, this application provides a window assembly, which you may refer to. Figures 1-9 , Figure 1 This is a schematic diagram of a window assembly according to one embodiment of this application. Figure 2 for Figure 1 A magnified view of a portion of the window assembly shown. Figure 3 This is a side view of the window assembly according to one embodiment of this application. Figure 4 This is a top view of the window assembly according to one embodiment of this application. Figure 5 This is a schematic diagram of a first window area, a second window area, and an overlapping area on a glass substrate according to an embodiment of this application. Figure 6This is a schematic diagram of the first heating element and the second heating element on the glass substrate in one embodiment of this application. Figure 7 This is a schematic diagram of a sensor assembly according to one embodiment of this application. Figure 8 This is a schematic diagram of a first window area, a second window area, and an overlapping area on a glass substrate in another embodiment of this application. Figure 9 This is a schematic diagram of the first heating element and the second heating element on a glass substrate in another embodiment of this application.

[0050] The window assembly 1 provided in this embodiment is mainly applied to vehicles with driver assistance functions. The window assembly 1 includes a window glass 10 and a sensor assembly 20. The window glass 10 includes a glass substrate 11 and a first heating element 12 disposed on the glass substrate 11. The sensor assembly 20 is disposed on one side of the window glass 10 and includes a first sensor 21 and a second sensor 22. The glass substrate 11 has a first window area 111 through which a first signal from the first sensor 21 passes and a second window area 112 through which a second signal from the second sensor 22 passes. Parts of the first window area 111 and the second window area 112 overlap, i.e., there is an overlap area 113 between the first window area 111 and the second window area 112. The window assembly 1 also includes a second heating element 23 disposed on one side of the window glass 10. At least a portion of the second heating element 23 is spaced apart from the glass substrate 11. The second heating element 23 is located outside the transmission paths of the first signal and the second signal, i.e., the second heating element 23 avoids the transmission paths of the optical signals of the first sensor 21 and the second sensor 22. The first heating element 12 avoids the second window area 112 and is at least partially disposed in the first window area 111. The first heating element 12 at least corresponds to heating the non-overlapping area of ​​the first window area 111, and the second heating element 23 at least corresponds to heating the second window area 112.

[0051] The window assembly 1 includes a window glass 10 and a sensor assembly 20. The window glass 10 is a glass substrate 11 body, and a series of components integrated on or inside the glass substrate 11 body. The sensor assembly 20 is a series of components located outside the glass substrate 11 and used to realize sensor functions. The window glass 10 includes a glass substrate 11 and a first heating element 12 disposed on the glass substrate 11. Specifically, the first heating element 12 can be disposed on the surface of the glass substrate 11 or inside the glass substrate 11. For example, when the glass substrate 11 is a laminated glass substrate 11, the glass substrate 11 is divided into three layers: an inner glass substrate 11, an interlayer, and an outer glass substrate 11. In this case, the first heating element 12 can be laid in the interlayer of the glass substrate 11, so that the first heating element 12 is disposed inside the glass substrate 11 to heat the glass substrate 11. Of course, the first heating element 12 can also be laid on the side of the inner glass substrate 11 facing away from the outer glass substrate 11, that is, on the side of the glass substrate 11 facing the inside of the vehicle, so that the first heating element 12 is laid on the entire inner surface of the glass substrate 11 to heat the glass substrate 11. Optionally, the first heating element 12 includes, but is not limited to, silver paste wire, enameled wire, transparent conductive film, etc.

[0052] The sensor assembly 20 is disposed on one side of the vehicle window glass 10, specifically on the side of the vehicle window glass 10 facing the interior of the vehicle. The sensor assembly 20 includes a first sensor 21 and a second sensor 22, which are mainly used to emit and receive signals. The first sensor 21 includes, but is not limited to, a camera, a lidar, etc., and the second sensor 22 includes, but is not limited to, a camera, a lidar, etc. Specifically, the first sensor 21 and the second sensor 22 are different types of sensors. The first sensor 21 is used to emit and / or receive a first signal, which can pass through the glass substrate 11. The area of ​​the glass substrate 11 through which the first signal passes is the first window area 111 corresponding to the first sensor 21. The second sensor 22 is used to emit and / or receive a second signal, which can also pass through the glass substrate 11. The area of ​​the glass substrate 11 through which the second signal passes is the second window area 112 corresponding to the second sensor 22. The window area can also be considered as the area where the sensor's field of view (FOV) intersects with the glass substrate 11.

[0053] A portion of the first window area 111 overlaps with a portion of the second window area 112; in other words, the first window area 111 and the second window area 112 partially coincide. This means that both the first signal and the second signal will pass through the overlapping portion of the first window area 111 and the second window area 112. The window assembly 1 also includes a second heating element 23, at least a portion of which is spaced apart from the glass substrate 11. In other words, the second heating element 23 is not located on the surface of the glass substrate 11 or inside the glass substrate 11, but rather on the outside of the glass substrate 11. That is, the second heating element 23 does not heat the glass substrate 11 through direct contact, but rather heats it indirectly through thermal radiation. Optionally, the second heating element 23 may include, but is not limited to, a heating wire, a heating plate, a heating film, or an infrared heating module. Furthermore, the second heating element 23 is located outside the transmission path of the first signal and the second signal. In other words, the second heating element 23 avoids the transmission path of the optical signals of the first sensor 21 and the second sensor 22. The transmission path of the first signal and the second signal will not pass through the second heating element 23. Therefore, the second heating element 23 will not affect the transmission performance of the first signal or the second signal.

[0054] The first heating element 12 corresponds to at least the non-overlapping area of ​​the first window region 111. In other words, at least a portion of the first heating element 12 is disposed in the portion of the first window region 111 that does not overlap with the second window region 112. That is, the first heating element 12 is not located within the second window region 112, and it is used to heat the portion of the first window region 111 that does not overlap with the second window region 112. The second heating element 23 corresponds to the second window region 112, meaning it is used to heat at least the entire area of ​​the second window region 112, including the portion of the second window region 112 that does not overlap with the first window region 111, and the portion of the first window region 111 that overlaps with the second window region 112. Heating the second window region 112 by thermal radiation ensures that the transmission of the second signal is not affected, i.e., the transmission performance of the second sensor 22 is not affected. The first heating element 12 is placed within the first window area 111 to heat the non-overlapping area within the first window area 111. This ensures that the signal transmission of the first sensor 21 is not affected while the first window area 111 is being heated, and also avoids affecting the signal transmission performance of the second sensor 22 by placing the first heating element 12 within the second window area 112. Furthermore, the second heating element 23 is not disposed on the glass substrate 11 and is located outside the transmission range of the first and second signals, thus not affecting the signal transmission of the first sensor 21 and the second sensor 22.

[0055] Specifically, the first sensor 21 can be a camera, and the second sensor 22 can be a LiDAR. In this case, the first heating element 12 is a silver paste wire, which has minimal impact on the camera. At this time, no heating element is installed in the area where the LiDAR signal passes through the glass substrate 11, meaning the LiDAR signal transmission is unaffected. The area where the camera passes through the glass substrate 11 uses silver paste wire, which also has minimal impact on the camera, meaning the camera signal transmission is essentially unaffected. Alternatively, the first sensor 21 can also be a LiDAR, in which case the second sensor 22 is a camera, and the first heating element 12 is an enameled wire. In this case, the camera signal is transmitted through the second window area 112, which does not have any heating element and therefore does not affect the camera signal transmission. The area of ​​the glass substrate 11 through which the LiDAR passes is the first window area 111, which uses an enameled wire solution and does not affect the LiDAR signal transmission.

[0056] In other words, this embodiment, by combining the first heating element 12 and the second heating element 23, not only satisfies the heating of the first window area 111 and the second window area 112 to remove fog and defrost, but also solves the problem of the contradictory heating method in the overlapping area 113 of the first window area 111 and the second window area 112, thus ensuring the reliability of the heating system and reducing the cost of the heating system.

[0057] In summary, this embodiment employs a first heating element 12 to directly heat the non-overlapping area of ​​the first window region 111, while the second heating element 23 heats the entire area of ​​the second window region 112 via radiation. This satisfies the heating, defogging, and defrosting requirements of both the first and second window regions 111 and resolves the conflicting heating methods for the overlapping area 113 of the first and second window regions 111 and 112. Simultaneously, it reduces the power and area required by the heating module while maintaining heating effectiveness, preventing sensor overheating. Furthermore, it lowers the cost of the heating system while ensuring system reliability, thus achieving a low-cost, high-efficiency, and low-risk heating solution for the glass substrate 11.

[0058] Optionally, when there are two first sensors 21 and one second sensor 22, the second sensor 22 can be disposed between the two first sensors 21, or it can be disposed on one side of the two first sensors 21. When the second sensor 22 is disposed between the two first sensors 21, there are two first window areas 111 and one second window area 112, and two overlapping areas 113. Similarly, the first heating element 12 is disposed in the non-overlapping area of ​​the two first window areas 111, and the second heating element 23 corresponds to the second window area 112 and heats the second window area 112.

[0059] Optionally, the vehicle window glass 10 also includes a third heating element, which is disposed outside the first window area 111 and the second window area 112 of the glass substrate 11 and is used to heat the area of ​​the glass substrate 11 other than the first window area 111 and the second window area 112. The third heating element may be the same as or different from the first heating element 12 and the second heating element 23.

[0060] Please refer to this again. Figures 3-4 In this embodiment, the window assembly 1 further includes a bracket 24, which is fixedly connected to the inner surface of the glass substrate 11. The first sensor 21 and the second sensor 22 are both disposed inside the bracket 24 and are spaced apart from the glass substrate 11. The second heating element 23 is disposed on the inner or outer surface of the bracket 24.

[0061] In addition to the aforementioned components, the window assembly 1 also includes a bracket 24, which primarily provides a mounting base for the sensor assembly 20 and the second heating element 23. Optionally, the bracket 24 is inclined relative to the glass substrate 11; in other words, the bracket 24 is angled relative to the glass substrate 11, meaning it is neither perpendicular nor parallel to the glass substrate 11. Since the glass substrate 11 itself is inclined, this would result in an excessively large angle between the bracket 24 and the horizontal plane, leading to lower heating efficiency of the second heating element 23. Therefore, the bracket 24 is typically horizontally positioned. Optionally, the fixing connection between the bracket 24 and the glass substrate 11 includes, but is not limited to, bonding and welding.

[0062] The first sensor 21 and the second sensor 22 can both be housed within the bracket 24, meaning the first sensor 21 and the second sensor 22 are disposed inside the bracket 24. The bracket 24 can be used to protect the first sensor 21 and the second sensor 22; in this case, the bracket 24 can also be referred to as a housing. Optionally, the first sensor 21 and the second sensor 22 can be disposed on the inner surface of the bracket 24. As for the second heating element 23, it can also be disposed on the bracket 24, either on the inner surface or the outer surface of the bracket 24. In other words, the second heating element 23 can be disposed either inside or outside the bracket 24, as long as the bracket 24 can provide a mounting base. The specific location of the second heating element 23 and the positional relationship between the sensor assembly 20 and the second heating element 23 will be described in detail below.

[0063] This embodiment adds a bracket 24 to provide a mounting base for the first sensor 21, the second sensor 22, and the second heating element 23, thereby facilitating the installation of the second heating element 23 on one side of the glass substrate 11 and spaced apart from the glass substrate 11.

[0064] Optionally, the window glass 10 also includes an edge 13, which is disposed on the surface of the glass substrate 11 and is an opaque structure. It is mainly used to cover the glue residue when the bracket 24 is bonded to the glass substrate 11, thereby improving the aesthetics of the window assembly 1. At the same time, the edge 13 can also prevent unnecessary signals from entering the sensor, thereby improving the accuracy of the sensor.

[0065] Please refer to this again. Figures 3-4 In this embodiment, along the horizontal direction, the second heating element 23 is closer to the glass substrate 11 than the first sensor 21 and the second sensor 22.

[0066] As can be seen from the above, the window assembly 1 also includes a bracket 24. The first sensor 21, the second sensor 22, and the second heating element 23 are all disposed on the bracket 24. Therefore, the first sensor 21, the second sensor 22, and the second heating element 23 have a certain positional relationship. In the horizontal direction, this embodiment allows the second heating element 23 to be closer to the glass substrate 11 than the first sensor 21 and the second sensor 22. That is, the vertical distance from the second heating element 23 to the glass substrate 11 is smaller than the vertical distance from the first sensor 21 and the second sensor 22 to the glass substrate 11. The second heating element 23 is positioned further forward, while the first sensor 21 and the second sensor 22 are positioned further back. When the first sensor 21 and the second sensor 22 are closer to the glass substrate 11, the heat radiation from the second heating element 23 will be directly transferred to the first sensor 21 and the second sensor 22 when it is heated, thereby causing the sensor assembly 20 to overheat. This embodiment makes the second heating element 23 closer to the glass substrate 11 than the first sensor 21 and the second sensor 22, so that the second heating element 23 will not heat the first sensor 21 and the second sensor 22 directly when it is heated, thereby preventing the first sensor 21 and the second sensor 22 from overheating.

[0067] Please refer to Figure 10 , Figure 10This is a side view of the window assembly according to another embodiment of this application. In this embodiment, the second heating element 23 is disposed on the inner surface of the bracket 24 in the vertical direction. As can be seen from the above, the second heating element 23 is disposed on the bracket 24, therefore the second heating element 23, the bracket 24, and the glass substrate 11 have a certain positional relationship. Based on this, this embodiment can also make the second heating element 23 disposed on the side of the bracket 24 closer to the glass substrate 11 in the vertical direction. When the second heating element 23 is installed on the bracket 24, there are three installation methods: the first is that the second heating element 23 is installed on the side of the bracket 24 closer to the glass substrate 11, that is, installed on the inner surface of the bracket 24. The second is that the second heating element 23 is installed on the side of the bracket 24 away from the glass substrate 11, that is, installed on the outer surface of the bracket 24. The third is that the second heating element 23 is directly installed inside the bracket 24, that is, the second heating element 23 and the bracket 24 are integrated into one unit. In this embodiment, the bracket 24 is installed on the side of the bracket 24 close to the glass substrate 11, that is, on the inner surface of the bracket 24. This allows the second heating element 23 to be closer to the glass substrate 11 and have a better heat radiation effect, thereby reducing the power required to heat the glass substrate 11 and thus reducing the cost of using the second heating element 23.

[0068] Please refer to this again. Figures 3-6 In this embodiment, the power of the second heating element 23 is 5W-30W. This embodiment controls the heating power of the second heating element 23 to be 5W-30W. When the heating power of the second heating element 23 is too low, for example, less than 5W, it cannot meet the heating requirements of the second window area 112, i.e., it cannot defrost or remove fog. When the heating power of the second heating element 23 is too high, for example, greater than 30W, it may cause the first sensor 21 and the second sensor 22 to overheat due to thermal radiation, thereby affecting the sensor performance or accelerating the aging of the adhesive on the glass substrate 11, increasing the risk of the support 24 detaching. This embodiment, by setting the power of the second heating element 23 to 5W-30W, meets the heating requirements of the second window area 112 without causing the sensor to overheat or the adhesive on the glass substrate 11 to age prematurely due to excessive heating power. Specifically, the heating power of the second heating element 23 can be 5W, 10W, 15W, 20W, 25W, or 30W.

[0069] Please refer to this again. Figures 3-6 In this embodiment, the area of ​​the second window region 112 is 0.005m². 2 -0.03m 2 As can be seen from the above, the power of the second heating element 23 is 5W-30W, and this embodiment allows the area of ​​the second window region 112 to be 0.005m². 2 -0.03m 2When the area of ​​the second window region 112 changes from 0.005m² 2 Increased to 0.03m 2 Correspondingly, the power of the second heating element 23 increases from 5W to 30W. When the area of ​​the second window region 112 is too small, for example less than 0.005m²... 2 At this time, the angle between the glass substrate 11 and the bracket 24 is too large, increasing the drag coefficient of the vehicle 2. Simultaneously, the reflection of the glass substrate 11 easily projects onto the road surface ahead, potentially causing driver misjudgment and posing a risk. When the area of ​​the second window area 112 is too large, for example, greater than 0.03m²... 2 If the area requiring radiant heating is too large, the power of the second heating element 23 will also be too high, which could lead to overheating of the sensor assembly 20 or accelerated aging of the adhesive on the glass substrate 11, increasing the risk of the bracket 24 detaching. In this embodiment, the area of ​​the second window region 112 is limited to 0.005m². 2 -0.03m 2 This design ensures that the area of ​​the second window region 112 is neither too small, which would cause glare and reflections from the glass substrate 11 to affect the driver's vision, nor too large, which would result in excessive power consumption of the second heating element 23, thus improving the user experience. Specifically, the area of ​​the second window region 112 can be 0.005m². 2 0.01m 2 0.015m 2 0.02m 2 0.025m 2 0.03m 2 .

[0070] Please refer to this again. Figures 3-6 In this embodiment, the angle between the glass substrate 11 and the horizontal plane (e.g., Figure 3 (As shown in ∠A) is 15°-40°. Generally, when the window assembly 1 is installed on the body 3 of the vehicle 2, the bracket 24 is horizontal to the ground. Therefore, the angle between the glass substrate 11 and the bracket 24 is 15°-40°, which is the same as the angle between the glass substrate 11 and the horizontal ground. When the angle between the glass substrate 11 and the horizontal plane is too small, for example, less than 15°, the area of ​​the second window area 112 is too large when the distance between the glass substrate 11 and the sensor remains unchanged. This leads to a large power response of the second heating element 23, which can easily cause the sensor to overheat or the adhesive of the glass substrate 11 to age faster. When the angle between the glass substrate 11 and the horizontal plane is too large, for example, greater than 40°, the reflection of the glass substrate 11 is easily projected onto the road surface in front, which can lead to driver misjudgment and cause risks. In addition, an excessively large tilt angle of the glass substrate 11 will also affect the overall drag coefficient of the vehicle 2.

[0071] In this embodiment, the included angle between the glass substrate 11 and the support 24 is limited to 15°-40°, so that the included angle is neither too small, which would cause the power of the second heating element 23 to be too large, nor too large, which would cause the glass substrate 11 to reflect light and project into the environment, thereby further improving the user experience.

[0072] Specifically, the included angle between the glass substrate 11 and the support 24 can be 15°, 20°, 25°, 30°, 35°, or 40°.

[0073] Please refer to this again. Figure 4 In this embodiment, the second heating element 23 along the horizontal direction includes a first end 231 and a second end 232 disposed opposite to each other. The vertical distance from the first end 231 to the glass substrate 11 is less than the vertical distance from the second end 232 to the glass substrate 11, and the heat generated by the second end 232 is greater than the heat generated by the first end 231.

[0074] As can be seen from the above, the second heating element 23 is disposed on one side of the glass substrate 11, and the second heating element 23 is angled to the glass substrate 11. In this embodiment, the second heating element 23 includes a first end 231 and a second end 232 disposed opposite to each other along the thickness direction perpendicular to the second heating element 23, that is, the second heating element 23 includes a first end 231 and a second end 232 disposed opposite to each other in the horizontal direction. The vertical distance from the first end 231 to the glass substrate 11 is less than the vertical distance from the second end 232 to the glass substrate 11. In other words, the second heating element 23 has a first end 231 close to the glass substrate 11 and a second end 232 away from the glass substrate 11. That is, the left end of the second heating element 23 is the first end 231, and the right end is the second end 232. The heat generated at the second end 232 is greater than that at the first end 231. In other words, the second end 232, which is farther from the glass substrate 11, generates more heat than the first end 231, which is closer to the glass substrate 11. This makes the second window area 112 heat up more evenly, and the second heating element 23 has a better heating effect on the second window area 112.

[0075] In order to achieve a higher heat output at the second end 232 of the second heating element 23 than at the first end 231, this application provides two specific implementation methods, which will be described in detail below.

[0076] Please refer to Figure 11 , Figure 11This is a top view of the window assembly according to another embodiment of this application. In one embodiment, the length of the first end 231 is less than the length of the second end 232. That is, assuming the heating power of the first end 231 and the second end 232 is the same, the heating area of ​​the second end 232 is larger than that of the first end 231, thereby making the second end 232 generate more heat than the first end 231. By making the length of the second end 232 greater than that of the first end 231, the heat generation of the second end 232 is greater than that of the first end 231, reducing the difficulty of setting up the second heating element 23 to uniformly heat the second window area 112.

[0077] Please refer to this again. Figure 4 In another embodiment, the heating power of the first end 231 is less than the heating power of the second end 232. That is, assuming the heating areas of the first end 231 and the second end 232 are the same, the heating power of the second end 232 is greater than that of the first end 231, thus causing the second end 232 to emit more heat than the first end 231 within the same time period. By making the heating power of the second end 232 greater than that of the first end 231, and consequently the heat generated by the second end 232 greater than that of the first end 231, the difficulty of uniformly heating the second window by the second heating element 23 is reduced.

[0078] Please refer to this again. Figures 3-6 In this embodiment, the first heating element 12 is laid in the non-overlapping area of ​​the first window region 111 and is used to heat the non-overlapping area of ​​the first window region 111. When the first sensor 21 is a camera, the first heating element 12 is a silver paste wire. When the wire diameter of the first heating element 12 is too thin, for example, less than 0.3 mm, it increases the risk of breakage of the first heating element 12. At the same time, if the first heating element 12 is too thin, it may result in poor heating effect. When the wire diameter of the first heating element 12 is too thick, for example, greater than 0.6 mm, it may affect the signal transmission of the camera. This embodiment makes the wire diameter of the first heating element 12 0.3 mm-0.6 mm, so that the first heating element 12 is neither too thin, thus increasing the risk of breakage, nor too thick, thus affecting the signal transmission of the camera. Specifically, when the first heating element 12 is a silver paste wire, the wire diameter of the first heating element 12 can be 0.3 mm, 0.4 mm, 0.5 mm, or 0.6 mm.

[0079] Of course, in other embodiments, the first sensor 21 can also be a lidar, in which case the first heating element 12 is an enameled wire with a wire diameter of 0.05mm-0.2mm. When the wire diameter of the first heating element 12 is too thin, for example, less than 0.05mm, it increases the risk of breakage. Simultaneously, an excessively thin wire diameter leads to poor heating of the first window area 111. When the wire diameter of the first heating element 12 is too thick, for example, greater than 0.2mm, it may affect the signal transmission of the lidar. This embodiment, by setting the wire diameter of the first heating element 12 to 0.05mm-0.2mm, ensures that the first heating element 12 is neither too thin, thus increasing the risk of breakage, nor too thick, thus affecting the signal transmission of the lidar. Specifically, when the first heating element 12 is an enameled wire, its wire diameter can be 0.05mm, 0.1mm, 0.15mm, or 0.2mm.

[0080] Please refer to this as well. Figures 12-16 , Figure 12 This is a front view of a vehicle according to one embodiment of this application. Figure 13 for Figure 12 A magnified view of a portion of the vehicle shown. Figure 14 This is a front view of the vehicle according to another embodiment of this application. Figure 15 for Figure 14 A magnified view of a portion of the vehicle shown. Figure 16 This is a schematic diagram of a first window area, a second window area, and an overlapping area on a glass substrate according to another embodiment of this application. In this embodiment, the window assembly 1 is used to mount on the vehicle body 3, and the first sensor 21 and the second sensor 22 are arranged along the height direction of the vehicle body 3, or the first sensor 21 and the second sensor 22 are arranged along the width direction of the vehicle body 3.

[0081] As can be seen from the above, the first sensor 21 and the second sensor 22 are located on the same side of the glass substrate 11 and are arranged adjacent to each other. In this embodiment, when the window assembly 1 is installed on the vehicle body 3, the first sensor 21 and the second sensor 22 are arranged along the height direction of the vehicle body 3, or along the width direction of the vehicle body 3. When the first sensor 21 and the second sensor 22 are arranged along the height direction of the vehicle body 3, that is, when the first sensor 21 and the second sensor 22 are arranged longitudinally, the overlapping area of ​​the first window area 111 of the first sensor 21 and the second window area 112 of the second sensor 22 is relatively small, which reduces the heating power of the second heating element 23 and thus reduces the risk of sensor overheating. When the first sensor 21 and the second sensor 22 are arranged along the width direction of the vehicle body 3, that is, when the first sensor 21 and the second sensor 22 are arranged laterally, the space occupied by the first sensor 21 and the second sensor 22 in the longitudinal direction of the glass substrate 11 is relatively small, that is, the impact on the field of vision of the windshield substrate 11 is small, thereby improving the user's driving experience.

[0082] Please refer to this again. Figures 3-6 In this embodiment, the first sensor 21 is a lidar, and the second sensor 22 is a camera, with the second sensor 22 positioned closer to the second heating element 23 than the first sensor 21. As described above, the second heating element 23 heats the second window area 112 corresponding to the second sensor 22, and the heating method of the second heating element 23 is thermal radiation heating. Correspondingly, since the second window area 112 corresponds to the second sensor 22, and the second heating element 23 is used to heat the second window area 112, the thermal radiation from the second heating element 23 to the second sensor 22 is greater than the thermal radiation to the first sensor 21. In other words, the influence of the second heating element 23 on the second sensor 22 is greater than its influence on the first sensor 21. Therefore, in this embodiment, the first sensor 21 is a lidar and the second sensor 22 is a camera. Since the camera is less affected by temperature than the lidar, in this embodiment, the first sensor 21 is set as a lidar that is more affected by temperature, and the second sensor 22 is set as a camera that is less affected by temperature. That is to say, the lidar that is more affected by temperature is placed further away from the second heating element 23, and the camera that is less affected by temperature is placed closer to the second heating element 23, thereby reducing the influence of the second heating element 23 on the sensor.

[0083] Please refer to this again. Figures 3-6 In this embodiment, when the temperature of the glass substrate 11 is lower than the preset temperature, both the first heating element 12 and the second heating element 23 are heated; when the temperature of the glass substrate 11 is not lower than the preset temperature, the first heating element 12 is heated and the second heating element 23 stops heating.

[0084] As can be seen from the above, the first heating element 12 is used to heat the non-overlapping area of ​​the first window region 111, and the second heating element 23 is used to heat the entire area of ​​the second window region 112. In this embodiment, when the temperature of the glass substrate 11 is lower than the preset temperature, the first heating element 12 and the second heating element 23 heat simultaneously; when the temperature of the glass substrate 11 is not lower than the preset temperature, the first heating element 12 heats while the second heating element 23 stops heating. That is, when the temperature of the glass substrate 11 is relatively low, the first heating element 12 and the second heating element 23 heat the glass substrate 11 simultaneously, thereby causing the temperature of the glass substrate 11 to rise rapidly, resulting in faster defogging and defrosting. When the temperature of the glass substrate 11 reaches the preset temperature, it is only necessary to maintain the temperature of the glass substrate 11 to prevent fogging. That is, at this time, only the first heating element 12 with high heating efficiency is needed to maintain the temperature of the glass substrate 11, and the heating element with lower heating efficiency can be turned off to save energy in the vehicle 2.

[0085] This embodiment reduces the energy loss of the first heating element 12 and the second heating element 23 by simultaneously heating the glass substrate 11 before it reaches the preset temperature, and heating the first heating element 12 and stopping the second heating element 23 when the preset temperature is reached.

[0086] Please refer to this again. Figure 12 This embodiment provides a vehicle 2, which includes a body 3 and a window assembly 1 as provided in the above embodiments of this application, wherein the window assembly 1 is installed on the body 3.

[0087] The vehicle 2 referred to in this embodiment is a vehicle 2 with at least two types of driver assistance sensors installed on one side of the glass substrate 11 of the vehicle 2. The specific type of vehicle 2 is not limited in this embodiment; for example, it can be a sedan, SUV, jeep, or truck. The vehicle 2 includes a body 3 and the window assembly 1 provided in the above-described embodiments of this application. The window assembly 1 is installed on the body 3, specifically on the front side of the body 3, i.e., the window assembly 1 is the windshield substrate 11 of the vehicle 2. The vehicle 2 provided in this embodiment, by employing the window assembly 1 provided in the above-described embodiments of this application, uses a first heating element 12 for heating in the non-overlapping area of ​​the first window region 111, and a second heating element 23 located on one side of the glass substrate 11 for radiant heating in the second window region 112. This solves the heating problem of the glass substrate 11 when the window areas of the first sensor 21 and the second sensor 22 overlap, thus improving the user experience.

[0088] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. Moreover, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0090] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0091] The foregoing has provided a detailed description of the embodiments of this application, elucidating and explaining the principles and implementation methods of this application. These descriptions are merely for the purpose of aiding understanding the method and core ideas of this application. However, the content of this specification should not be construed as a limitation of this application. Those skilled in the art can make various modifications and variations to this application without departing from its spirit and scope. These modifications and variations fall within the scope of the claims of this application and their equivalents.

Claims

1. A vehicle window assembly, characterized in that, The window assembly includes window glass and sensor components; wherein... The vehicle window glass includes a glass substrate and a first heating element disposed on the glass substrate. The glass substrate has a first window area and a second window area, and there is an overlapping area between the first window area and the second window area. The sensor assembly is located on one side of the vehicle window glass, and the sensor assembly includes a first sensor and a second sensor; The first heating element avoids the second window area and is at least partially disposed in the first window area, and the first heating element at least corresponds to heating the non-overlapping area of ​​the first window area; The window assembly further includes a second heating element disposed on one side of the window glass. The second heating element avoids the transmission path of the optical signals of the first sensor and the second sensor and is at least partially spaced from the window glass. The second heating element heats at least the second window area. The second heating element heats the second window area by thermal radiation.

2. The window assembly as described in claim 1, characterized in that, The window assembly also includes a bracket, which is fixedly connected to the inner surface of the glass substrate. The first sensor and the second sensor are both disposed inside the bracket and are spaced apart from the glass substrate. The second heating element is disposed on the inner or outer surface of the bracket.

3. The window assembly as described in claim 2, characterized in that, Along the horizontal direction, the second heating element is closer to the glass substrate than both the first and second sensors.

4. The window assembly as described in claim 3, characterized in that, The second heating element is disposed on the inner surface of the bracket along the vertical direction.

5. The window assembly as described in claim 2, characterized in that, The power of the second heating element is 5W-30W.

6. The window assembly as described in claim 5, characterized in that, The area of ​​the second window region is 0.005m². 2 -0.03m 2 .

7. The window assembly as described in claim 6, characterized in that, The angle between the glass substrate and the horizontal plane is 15°-40°.

8. The window assembly as described in claim 1, characterized in that, The second heating element in the horizontal direction includes a first end and a second end disposed opposite to each other. The vertical distance from the first end to the glass substrate is less than the vertical distance from the second end to the glass substrate, and the heat generation of the second end is greater than the heat generation of the first end.

9. The window assembly as described in claim 8, characterized in that, The length of the first end is less than the length of the second end.

10. The window assembly as described in claim 8, characterized in that, The heating power of the first end is less than the heating power of the second end.

11. The window assembly as described in any one of claims 1-10, characterized in that, The first sensor includes one of a lidar and a camera, and the second sensor includes the other of a lidar and a camera.

12. The window assembly as described in claim 11, characterized in that, When the first sensor is a camera, the first heating element is a silver paste wire with a wire diameter of 0.3mm-0.6mm.

13. The window assembly as described in claim 11, characterized in that, When the first sensor is a lidar, the first heating element is an enameled wire with a wire diameter of 0.05mm-0.2mm.

14. The window assembly as described in any one of claims 1-10, characterized in that, The second heating element includes a heating film or an infrared heating module.

15. The window assembly as described in any one of claims 1-10, characterized in that, The window assembly is used to install on the vehicle body, and the first sensor and the second sensor are arranged along the height direction of the vehicle body, or the first sensor and the second sensor are arranged along the width direction of the vehicle body.

16. The window assembly as described in any one of claims 1-10, characterized in that, When the temperature of the glass substrate is lower than the preset temperature, both the first heating element and the second heating element are heated.

17. A vehicle, characterized in that, The vehicle includes a body and a window assembly as described in any one of claims 1-16, the window assembly being mounted on the body.

Images