Vehicle window glass assembly and vehicle

Abstract

The application provides a vehicle window glass assembly and a vehicle, which suppresses the wire-drawing phenomenon, improves the imaging quality of a camera, and ensures the driving safety of the vehicle. The vehicle window glass assembly comprises a vehicle window glass and a heating wire. The vehicle window glass has a communication window for transmitting optical signals, and the communication window comprises a key view area. The heating wire is arranged on the vehicle window glass and comprises a first horizontal line segment, a second horizontal line segment and an inclined line segment. The first horizontal line segment, the second horizontal line segment and the inclined line segment are all located in the communication window. The first horizontal line segment and the second horizontal line segment are arranged at intervals along the height direction of the communication window and are located outside the key view area. The inclined line segment is connected between the first horizontal line segment and the second horizontal line segment.

Description

Technical Field

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

[0002] With the development of the automotive industry, vehicles are becoming increasingly feature-rich. Existing vehicles often have heating wires installed in the window opening area to defrost and defog, allowing cameras or other devices to perceive the external environment. However, when external light shines on the heating wires, light diffraction at the wire edges can cause wire-like streaking, reducing the image quality of cameras or other devices and affecting vehicle safety. Summary of the Invention

[0003] This application provides a vehicle window glass assembly and a vehicle that suppresses wire scratches, improves the imaging quality of a camera or camera, and ensures vehicle driving safety.

[0004] This application provides a vehicle window glass assembly, including a vehicle window glass and a heating wire, wherein the vehicle window glass has a communication window for transmitting optical signals, and the communication window includes a key field of view.

[0005] The heating wire is disposed on the vehicle window glass and includes a first horizontal line segment, a second horizontal line segment, and a diagonal line segment. The first horizontal line segment, the second horizontal line segment, and the diagonal line segment are all located in the communication window. Along the height direction of the communication window, the first horizontal line segment and the second horizontal line segment are arranged at intervals and are located outside the key field of view area. The diagonal line segment connects the first horizontal line segment and the second horizontal line segment.

[0006] In some embodiments, the key field of view includes a telephoto region, and the diagonal line segment is located outside the telephoto region.

[0007] In some embodiments, the angle between the oblique line segment and the height direction of the communication window is greater than 0 degrees and less than 60 degrees.

[0008] In some embodiments, the angle between the oblique line segment and the height direction of the communication window is greater than 0 degrees and less than 30 degrees.

[0009] In some embodiments, the angle between the oblique line segment and the first horizontal line segment, and the angle between the oblique line segment and the second horizontal line segment are equal.

[0010] In some embodiments, the angle between the diagonal line segment and the first horizontal line segment is greater than 90 degrees and less than 120 degrees, and / or the angle between the diagonal line segment and the second horizontal line segment is greater than 90 degrees and less than 120 degrees.

[0011] In some embodiments, the angle between the diagonal line segment and the first horizontal line segment is greater than 70 degrees and less than 90 degrees, and / or the angle between the diagonal line segment and the second horizontal line segment is greater than 70 degrees and less than 90 degrees.

[0012] In some embodiments, there are multiple first horizontal lines, multiple second horizontal lines, and multiple diagonal lines. The multiple first horizontal lines are spaced apart from each other, the multiple second horizontal lines are spaced apart from each other, each diagonal line connects a first horizontal line and a second horizontal line, and at least one diagonal line passes through the key field of view.

[0013] In some embodiments, along the height direction of the communication window, the minimum distance between the first horizontal segment and the second horizontal segment connected by each of the diagonal line segments is greater than or equal to 14 mm and less than or equal to 40 mm.

[0014] In some embodiments, the plurality of oblique line segments include a first oblique line segment and a second oblique line segment, the first oblique line segment and the second oblique line segment being respectively connected to opposite sides of the second horizontal line segment, and the extension of the first oblique line segment intersecting the extension of the second oblique line segment.

[0015] In some embodiments, along the length direction of the communication window, the distance between two adjacent first horizontal line segments is greater than or equal to 20 mm and less than or equal to 35 mm, and / or, the length of the second horizontal line segment is greater than or equal to 16 mm and less than or equal to 20 mm.

[0016] In some embodiments, the heating wire includes a plurality of heating sections, all of which are located in the communication window. The plurality of heating sections are arranged at intervals along the height direction of the communication window, and each heating section includes at least one first horizontal line segment, at least one second horizontal line segment, and at least one diagonal line segment.

[0017] Wherein, along the height direction of the communication window, the minimum distance between two adjacent heating parts is greater than or equal to 16mm and less than or equal to 20mm.

[0018] In some embodiments, the heating wire includes a plurality of heating units, all of which are located in the communication window. The plurality of heating units are connected sequentially along the length of the heating wire. Each heating unit has two edge lines. Along the width of the heating unit, the two edge lines are arranged opposite to each other, and one edge line protrudes in a direction away from the other edge line.

[0019] In some embodiments, each of the heating units has a first center line parallel to the width direction of the heating unit, and both edge lines are mirror-symmetrical about the first center line.

[0020] In some embodiments, each edge line includes two chamfered segments, which are arranged opposite to each other along the length of the heating unit and are respectively connected to the edge lines of two adjacent heating units.

[0021] In some embodiments, in each of the heating units, the two edge lines are serrated.

[0022] In some embodiments, in each heating unit, the maximum distance between two edge lines along the width direction of the heating unit is a first distance, the minimum distance between two edge lines is a second distance, and the ratio between the second distance and the first distance is between 25% and 40%.

[0023] In some embodiments, the length of each heating unit is between 0.3 mm and 1.2 mm.

[0024] In some embodiments, the edge lines are elliptical arcs. In each heating unit, the maximum distance between two edge lines along the width direction of the heating unit is a first distance, and the minimum distance between two edge lines is a second distance. The ratio between the second distance and the first distance is between 20% and 80%.

[0025] In some embodiments, in each of the heating units, the ratio between the length of the heating unit and the first distance is greater than or equal to 1 and less than or equal to 7.

[0026] In some embodiments, in each heating unit, each edge line includes a first sub-segment and a second sub-segment. Along the length direction of the heating unit, the second sub-segment is connected to one side of the first sub-segment. The projected length of the second sub-segment in the length direction of the heating unit is greater than the projected length of the first sub-segment in the length direction of the heating unit. Along the direction from the first sub-segment to the second sub-segment, the distance between the first sub-segments of the two edge lines gradually increases, and the distance between the second sub-segments of the two edge lines gradually decreases.

[0027] In some embodiments, the first segment is arc-shaped, and the radius of the arc of the first segment is less than or equal to 0.4 mm.

[0028] In some embodiments, the second sub-segment is linear.

[0029] In some embodiments, each of the heating units has a second center line parallel to the length direction of the heating unit, and the two edge lines are mirror-symmetrical about the second center line.

[0030] This application also provides a vehicle, including a body and a window glass assembly as described above, the window glass assembly being mounted on the body.

[0031] This application sets up a heating line including a first horizontal line segment, a second horizontal line segment, and a diagonal line segment. The diagonal line segment connects the first horizontal line segment and the second horizontal line segment, and both the first horizontal line segment and the second horizontal line segment are located outside the critical field of view, so as to avoid the first horizontal line segment from producing a streaking phenomenon in the critical field of view, thereby improving the imaging quality of the camera or camera and enhancing the driving safety of the vehicle. Attached Figure Description

[0032] 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.

[0033] Figure 1 A schematic diagram of the vehicle structure provided for an embodiment of this application;

[0034] Figure 2 yes Figure 1 A schematic diagram of the structure of the vehicle window glass assembly shown in the figure;

[0035] Figure 3 yes Figure 2 A simplified schematic diagram of a partial structure of the vehicle window glass assembly shown;

[0036] Figure 4 yes Figure 3 A partial schematic diagram of region A in the heating line shown in the first embodiment;

[0037] Figure 5 yes Figure 4 A partial schematic diagram of the heating wire shown;

[0038] Figure 6 yes Figure 3 A partial schematic diagram of region A in the heating line shown in the second embodiment;

[0039] Figure 7 yes Figure 6 A partial schematic diagram of the heating wire shown;

[0040] Figure 8 yes Figure 3 A partial schematic diagram of the heating wire in the third embodiment shown;

[0041] Figure 9 yes Figure 8 A partial schematic diagram of the heating wire shown.

[0042] Reference numerals: Vehicle 1000, Body 100, Window glass assembly 200, Window glass 300, First zone 300a, Second zone 300d, Communication window 300b, Near-focus zone 310, Key field of view zone 320, Far-focus zone 330, Busbar 900, Heating line 400, First horizontal line segment 461, Second horizontal line segment 462, Diagonal line segment 463, First diagonal line segment 464, Second diagonal line segment 465, Heating part 1, Heating unit 2, First center line a, Second center line b, Edge line 410, Chamfer segment 412, First protrusion 411, Period length T, First distance W, Second distance H, First sub-segment 411a, Second sub-segment 411b. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] Please see Figure 1 , Figure 1 This is a structural schematic diagram of the vehicle 1000 provided in the embodiments of this application.

[0045] This application provides a vehicle 1000, which includes a body 100 and a window glass assembly 200. The body 100 may be a sheet metal part. The window glass assembly 200 is mounted on the body 100. The window glass assembly 200 serves as a windshield assembly. In other embodiments, the window glass assembly 200 may also serve as other glass assemblies, and this application does not limit this.

[0046] Please see Figure 2 , Figure 2 yes Figure 1 A schematic diagram of the structure of the window glass assembly 200 in the vehicle 1000 shown.

[0047] It should be noted that, for ease of description, the definition is... Figure 2 The length direction of the window glass assembly 200 shown is the X1 axis direction, and the height direction is the Y1 axis direction. The X1 and Y1 axes are perpendicular to each other. Here, "perpendicular" is a term used in light of current manufacturing processes, not a strictly mathematical definition; slight deviations are permissible, and approximations are acceptable. For example, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0048] The vehicle window glass assembly 200 includes a vehicle window glass 300. The vehicle window glass 300 can be laminated glass or single-pane glass. The vehicle window glass 300 includes a first zone 300a and a second zone 300d. The first zone 300a is located in the center of the vehicle window glass 300. External light can enter the vehicle 1000 through the first zone 300a, and light from inside the vehicle 1000 can also enter the external environment through the first zone 300a. The second zone 300d is arranged around the first zone 300a. The second zone 300d includes a communication window 300b and a shielding area. The communication window 300b is spaced apart from the first zone 300a. In this embodiment, the communication window 300b is located at the top of the vehicle window glass 300, is transparent and visible, and is used to transmit optical signals. Devices such as cameras or video cameras can identify the external environment of the vehicle 1000 through the communication window 300b.

[0049] Please refer to the following: Figure 3 , Figure 3 yes Figure 2 The diagram shows a simplified partial structure of the vehicle window glass assembly 200. The area enclosed by the dashed line is the key field of view 320, and the area enclosed by the dotted line is the telephoto zone 330.

[0050] The communication window 300b includes a near-focus area 310. It is necessary to reduce the blurring effect in the near-focus area 310 to ensure that the camera or other camera can identify the external environment of the vehicle 1000 through the near-focus area 310. The distance between the boundary of the near-focus area 310 and the boundary of the communication window 300b is greater than or equal to 1.5 mm. For example, the near-focus area 310 is a functional field-of-view window with a 120° field of view. A 120° wide-angle camera can be used for observation in the near-focus area 310.

[0051] The near-focus zone 310 includes the critical field of view 320. It is necessary to minimize blurring in the critical field of view 320 to ensure that the camera or other camera can accurately identify the external environment of the vehicle 1000 through the critical field of view 320, and to ensure accurate identification of traffic lights on the main road and auxiliary roads within the critical field of view 320. The critical field of view 320 is a key functional field of view window with a 120° field of view angle, and its area is one-third the size of the near-focus zone 310. A 120° wide-angle camera can be used for observation within the critical field of view 320.

[0052] The key field of view 320 includes a telephoto zone 330. It is necessary to completely eliminate any blurring or streaking in the telephoto zone 330 to ensure that the camera or sensor can accurately identify the external environment of the vehicle 1000 through the telephoto zone 330. The distance between the boundary of the telephoto zone 330 and the boundary of the communication window 300b is greater than or equal to 10mm. The telephoto zone 330 is a 30° field of view window. A 30° telephoto camera can be used for observation within the telephoto zone 330.

[0053] The shielding area is located at the edge of the first area 300a and surrounds the first area 300a and the communication window 300b. The shielding area can be used to apply an ink layer to cover decorative and functional components on the window glass assembly 200, thereby improving the overall aesthetics of the window glass assembly 200 and the vehicle 1000.

[0054] The vehicle window glass assembly 200 also includes at least two busbars 900 and a heating wire 400. The at least two busbars 900 are located in the shielded area. Both ends of the heating wire 400 are electrically connected to the at least two busbars 900. The heating wire 400 is located on the vehicle window glass 300. In this embodiment, there is one heating wire 400, located in the partially shielded area and the communication window 300b, and outside the telephoto zone 330, to ensure that the telephoto zone 330 does not experience streaking, thereby ensuring the imaging quality of the telephoto zone 330 and ensuring the accuracy of traffic light perception in intelligent driving. In other embodiments, there may be multiple heating wires 400. Multiple heating wires 400 are spaced apart.

[0055] The heating wire 400 and busbar 900 are configured to heat and defrost the communication window 300b, ensuring its clarity and enabling the camera or other camera to recognize the external environment through the communication window 300b, thus ensuring the driving safety of the vehicle 1000. For example, both the heating wire 400 and busbar 900 are made of silver paste.

[0056] The heating wire 400 includes a first horizontal segment 461, a second horizontal segment 462, and a diagonal segment 463. All three segments are located within the communication window 300b. Along the height of the communication window 300b (Y1 axis direction in the diagram), the first horizontal segment 461 and the second horizontal segment 462 are spaced apart and located outside the critical field of view 320 to prevent the first horizontal segment 461 from exhibiting a stringing effect within the critical field of view 320, thus ensuring the accuracy of traffic light perception in intelligent driving. The length of the second horizontal segment 462 is greater than or equal to 16mm and less than or equal to 20mm. It should be noted that the first horizontal line segment 461 and the second horizontal line segment 462 refer to line segments whose extension direction is roughly consistent with the length direction of the communication window 300b (the direction of the X1 axis in the figure). In this embodiment, the first horizontal line segment 461 and the second horizontal line segment 462 are horizontal lines. In some other embodiments, the first horizontal line segment 461 and the second horizontal line segment 462 may also be diagonal lines or arcs. This application does not limit this.

[0057] It should be noted that digital traffic lights are composed of horizontal and vertical LEDs. When a horizontal LED shines on a heating line 400 of the same shape, the more the projection of the horizontal LED onto the heating line 400 covers it, the more the diffracted light generated by the LED on the heating line 400 is superimposed, resulting in stronger diffracted light intensity and more pronounced stringing. In this embodiment, the intensity of the diffracted light when the horizontal LED shines on the first horizontal segment 461 is greater than the intensity of the diffracted light when the horizontal LED shines on the oblique segment 463. Therefore, the first horizontal segment 461 is located outside the critical field of view 320, ensuring that the stringing phenomenon formed by the diffracted light of the first horizontal segment 461 does not affect the observation of the critical field of view 320. There are multiple first horizontal segments 461 and multiple second horizontal segments 462. Multiple first horizontal segments 461 are spaced apart from each other. Multiple second horizontal segments 462 are also spaced apart from each other. Along the length of the communication window 300b (X1 axis direction in the diagram), the distance between two adjacent first horizontal line segments 461 is greater than or equal to 20mm and less than or equal to 35mm. This ensures that the heating wire 400 has sufficient length in the horizontal direction of the communication window 300b. While ensuring good heating, defrosting, and defogging functions within the communication window 300b, controlling the length of the heating wire 400 reduces streaking, thereby improving image quality. The oblique line segment 463 connects the first horizontal line segment 461 and the second horizontal line segment 462 and is located outside the telephoto zone 330 to prevent streaking in the telephoto zone 330, thus ensuring good image quality in the telephoto zone 330. The angle between the oblique line segment 463 and the height direction of the communication window 300b (Y1 axis direction in the diagram) is greater than 0 degrees and less than 60 degrees. It should be noted that when a vertical light source (such as a vertical LED) shines on the oblique line segment 463, the overlap between the oblique line segment 463 and the vertical light source is reduced because the oblique line segment 463 is an oblique line. This reduces the superposition of diffracted light rays, suppresses the framing phenomenon, improves the imaging quality of the camera or sensor, and enhances the driving safety of the vehicle 1000. Furthermore, the angle between the oblique line segment 463 and the height direction (Y1 axis direction in the diagram) of the communication window 300b is greater than or equal to 0 degrees and less than or equal to 30 degrees to ensure that the framing phenomenon in the entire critical field of view 320 is reduced. In some other embodiments, the angle between the oblique line segment 463 and the height direction (Y1 axis direction in the diagram) of the communication window 300b can be set according to the actual position of the camera; this application does not impose any limitations on this.

[0058] The angles between the diagonal segment 463 and the first horizontal segment 461, and between the diagonal segment 463 and the second horizontal segment 462, are equal. This ensures the heating efficiency of the communication window 300b while maintaining a good appearance for the heating wire 400. The angle between the diagonal segment 463 and the first horizontal segment 461 is greater than 90 degrees and less than 120 degrees, and / or the angle between the diagonal segment 463 and the second horizontal segment 462 is greater than 90 degrees and less than 120 degrees. This ensures that the angle between the diagonal segment 463 and the first horizontal segment 461 is an obtuse angle, and / or the angle between the diagonal segment 463 and the second horizontal segment 462 is an obtuse angle. This allows for a larger heating area for the first horizontal segment 461, the second horizontal segment 462, and the diagonal segment 463, thereby reducing the total length of the heating wire 400 in the communication window 300b. This further reduces wire pulling, improves the imaging quality of the camera or sensor, and enhances the driving safety of the vehicle 1000. In some other embodiments, the angle between the diagonal line segment 463 and the first horizontal line segment 461 may be greater than 70 degrees and less than 90 degrees, and / or the angle between the diagonal line segment 463 and the second horizontal line segment 462 may be greater than 70 degrees and less than 90 degrees. This application does not impose any restrictions on this.

[0059] Along the height direction of the communication window 300b (Y1 axis direction in the diagram), the minimum distance between the first horizontal line segment 461 and the second horizontal line segment 462 connected by the diagonal line segment 463 is greater than or equal to 14mm and less than or equal to 40mm. This can limit the length of the heating line 400 along the height direction (Y1 axis direction in the diagram) of the entire communication window 300b while ensuring that the communication window 300b has good heating, defrosting and defogging functions. This reduces the filamentation phenomenon of light on the heating line 400, improves the imaging quality of the camera or camera, and enhances the driving safety of the vehicle 1000.

[0060] In this embodiment, there are multiple diagonal segments 463. These segments are spaced apart from each other. Each diagonal segment 463 connects to a first horizontal segment 461 and a second horizontal segment 462, and at least one diagonal segment 463 passes through the critical viewing area 320. The multiple diagonal segments 463 include a first diagonal segment 464 and a second diagonal segment 465. The first diagonal segment 464 and the second diagonal segment 465 are respectively connected to opposite sides of the second horizontal segment 462. The extension of the first diagonal segment 464 intersects the extension of the second diagonal segment 465, ensuring that the first diagonal segment 464 and the second diagonal segment 465 are not parallel, thus increasing the heating area of ​​the first diagonal segment 464 and the second diagonal segment 465 in the critical viewing area 320, and ensuring the defogging and defrosting effect in the critical viewing area 320. In some other embodiments, the first diagonal segment 464 and the second diagonal segment 465 may be parallel; this application does not limit this.

[0061] It should be noted that, since the length of the second horizontal segment 462 is greater than or equal to 16mm and less than or equal to 20mm, it ensures that the connection between the first diagonal segment 464 and the second diagonal segment 465 is not a sharp angle, preventing localized high heat formation in the communication window 300b, meeting the hotspot requirement of less than or equal to 70℃, and achieving the defrosting requirement, thus improving the stability of the window glass assembly 200. Simultaneously, by limiting the length of the first horizontal segment 461, the streaking phenomenon formed when the horizontal LED bead illuminates the first horizontal segment 461 can be reduced, thereby improving the imaging quality of the camera or sensor.

[0062] It should be noted that four adjacent diagonal line segments 463, two first horizontal line segments 461, and one second horizontal line segment 462 can form an M-shape. Each heating wire 400 can include multiple M-shapes. This allows for better heating of the vehicle window glass assembly 200 within the communication window 300b while minimizing the length of the heating wire, thereby suppressing wire pulling within the communication window 300b and improving image quality. For example, the heating wire 400 includes three M-shapes. In other embodiments, the heating wire 400 may include two M-shapes; the specific number can be adjusted according to actual tooling requirements, and this application does not impose any limitations on this.

[0063] The heating wire 400 also includes a plurality of heating elements 1. All heating elements 1 are located in the communication window 300b. The heating elements 1 are arranged at intervals along the height direction of the communication window 300b (Y1 axis direction in the figure). In this embodiment, the heating elements 1 are connected in series. In some other embodiments, the heating elements 1 may be connected in parallel, and this application does not limit this. Each heating element 1 includes at least one first horizontal line segment 461, at least one second horizontal line segment 462, and at least one diagonal line segment 463.

[0064] Along the height direction of the communication window 300b (Y1 axis direction in the figure), the minimum distance between two adjacent heating parts 1 is greater than or equal to 16mm and less than or equal to 20mm. This ensures that there are enough heating parts 1 in the communication window 300b to provide good heating, defrosting and defogging functions for the window glass 300, while also ensuring a certain distance between two adjacent heating parts 1 to prevent localized high heat formation in the communication window 300b, which could affect the stability of the window glass 300.

[0065] In this embodiment, in the critical field of view 320, the refractive power of the window glass assembly 200 is less than or equal to 130 mdpt to meet the optical requirements of the critical field of view 320, reduce light interference, and ensure the clarity of this area, which is beneficial for devices such as cameras to observe the external environment through this area. In the telephoto zone 330, the refractive power of the window glass assembly 200 is less than or equal to 75 mdpt to meet the optical requirements of the telephoto zone 330, further reducing light interference and ensuring the clarity of this area, which is beneficial for devices such as cameras to observe the external environment through this area.

[0066] Please see Figures 4 to 5 , Figure 4 yes Figure 3 The diagram shows a partial view of region A in the heating line 400 under the first embodiment. Figure 5 yes Figure 4 A partial schematic diagram of the heating line 400 is shown. The dashed arrows in the diagram indicate the direction of the diffracted light rays.

[0067] It should be noted that, for ease of description, the definition is... Figure 5 In the diagram, the length direction of each heating unit 2 is the X2 axis direction, and the width direction of each heating unit 2 is the Y2 axis direction. The X2 and Y2 axes are perpendicular to each other. Here, "perpendicular" is relative to the current technological level, not an absolute and strict mathematical definition; slight deviations are allowed, and approximations of perpendicularity are acceptable. For example, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0068] In this embodiment, the cross-sectional shape of the heating wire 400 changes periodically within the communication window 300b. Specifically, the heating wire 400 includes multiple heating units 2. All heating units 2 are located within the communication window 300b. Along the length of the heating wire 400, the multiple heating units 2 are connected sequentially. Each heating unit 2 has a first center line a and a second center line b. The first center line a is parallel to the width direction of the heating unit 2 (Y2 axis direction in the figure), and the second center line b is parallel to the width direction of the heating unit 2 (Y2 axis direction in the figure). It should be noted that in the shielded area, the cross-sectional shape of the heating wire 400 can be a conventional rectangle; that is, the heating wire 400 located in the shielded area may not include multiple heating units 2, and this application does not impose any limitations on this. Each heating unit 2 has two edge lines 410. Along the width direction of the heating wire 400, the two edge lines 410 are arranged opposite to each other and are mirror-symmetrical about the second center line b. Both edge lines 410 are mirror-symmetrical about the first center line a. One edge line 410 protrudes in a direction away from the other edge line 410. Exemplarily, each edge line 410 is triangularly serrated. In some other embodiments, each edge line 410 may be trapezoidal or other serrated shapes, which is not limited in this application.

[0069] Each edge line 410 includes two chamfered segments 412 and a first protrusion 411. Along the length of the heating unit 2 (X2 axis direction in the figure), the two chamfered segments 412 are arranged opposite to each other and are connected to the edge lines 410 of two adjacent heating units 2, and are mirror-symmetrical about the first center line a. Specifically, each chamfered segment 412 is connected to one chamfered segment 412 of two adjacent heating units 2. The chamfered segments 412 of the two connected heating units 2 are concentric. The chamfered segments 412 create a smooth connection between the two heating units 2, reducing diffraction caused by abrupt changes in the edge when light strikes the heating line 400, and guiding the light smoothly during movement. Furthermore, the rounded corners of the chamfered segments 412 are beneficial for manufacturing processes and can avoid localized overheating and false connections caused by sharp corners between the edge lines 410 of adjacent heating units 2. For example, the radius of the rounded corner of each chamfered segment 412 is 0.1 mm.

[0070] The first protrusion 411 is located between and connects the two chamfered segments 412, and is mirror-symmetrical about the first center line a. In this embodiment, the first protrusions 411 are all rounded, which can avoid the situation of local high heat caused by the sharp corner connection between the edge lines 410 of two adjacent heating units 2. For example, the radius of the rounded corners of the first protrusions 411 is 0.1mm.

[0071] It should be noted that when light is directed towards the heating line 400, the light will diffract at the edge line 410. The direction of the diffracted beam at the edge line 410 is perpendicular to the edge line 410. Since the edge line 410 includes two chamfered segments 412 and a first protrusion 411, the direction of the diffracted light on the edge line 410 is changed, the energy of the diffracted light is dispersed, and the diffracted light in a single direction is destroyed. At the same time, the diffracted light in different directions will interfere, which will further weaken the intensity of the diffracted light, thereby suppressing the wire-drawing phenomenon, improving the imaging quality of the camera or camera, and ensuring the driving safety of the vehicle 1000.

[0072] In this embodiment, when light from 60 meters away shines on the heating line 400, the design of the edge line 410 and the second edge line 450 changes the direction of the diffracted light, thereby dispersing the energy of the diffracted light and destroying the diffracted light in a single direction. This reduces the range of the wire drawing light by 75%, improves the imaging quality, and enhances the driving safety of the vehicle 1000.

[0073] Each heating unit 20 has a period length T, a first distance W, and a second distance H. The period length T is the length of each heating unit 2. In this embodiment, the period length T is also the horizontal distance between two chamfered segments 412. The period length T is greater than or equal to 0.3 mm and less than or equal to 1.2 mm. Preferably, the period length T is greater than or equal to 0.6 mm and less than or equal to 1.2 mm. It should be noted that if the period length T is too short, not only will the manufacturing process be difficult, but the distance between the first protrusions 411 of adjacent heating units 2 will also be too small, resulting in a poor serrated shape of the heating part 1 and poor suppression of wire drawing. If the period length T is too long, the distance between the first protrusions 411 of adjacent heating units 2 will be too large, the serrated shape of the heating part 1 will be indistinct, and the effect of changing the direction of diffracted light and dispersing diffracted light will be poor, thus resulting in poor suppression of wire drawing.

[0074] In each heating unit 2, the maximum distance between two edge lines 410 along the width direction of the heating unit 2 (Y2 axis direction in the figure) is the first distance W. For example, the maximum distance between the first protrusions 411 of the two edge lines 410 is the first distance W. The minimum distance between two edge lines 410 along the width direction of the heating unit 2 (Y2 axis direction in the figure) is the second distance H. For example, the minimum distance between the chamfered segments 412 of the two edge lines 410 is the second distance H. The ratio of the second distance H to the first distance W is between 25% and 40% to ensure that one edge line 410 protrudes a certain amount away from the other edge line 410, thereby effectively changing the direction of diffracted light on the edge line 410 and dispersing the energy of the diffracted light to suppress wire-strapping, improve the imaging quality of the camera or sensor, and enhance the driving safety of the vehicle 1000. For example, the ratio of the first distance W to the second distance H is 0.375, the first distance W is 0.8 mm, and the second distance H is 0.3 mm.

[0075] Please see Figure 6 and Figure 7 , Figure 6 yes Figure 3 A partial schematic diagram of region A in the heating line 400 under the second embodiment. Figure 7 yes Figure 6 A partial schematic diagram of the heating wire 400 shown.

[0076] It should be noted that, for ease of description, the definition is... Figure 7 In the diagram, the length direction of each heating unit 2 is the X2 axis direction, and the width direction of each heating unit 2 is the Y2 axis direction. The X2 and Y2 axes are perpendicular to each other. Here, "perpendicular" is relative to the current technological level, not an absolute and strict mathematical definition; slight deviations are allowed, and approximations of perpendicularity are acceptable. For example, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0077] The difference between this embodiment and the first embodiment is that each edge line 410 is an elliptical arc. In this embodiment, the radius of the chamfered segment 412 is less than or equal to 0.1 mm, making the connection between two adjacent first protrusions 411 smooth, reducing diffraction caused by abrupt edge changes when light hits the heating line 400, and guiding the light smoothly during movement. Furthermore, the rounded corners of the chamfered segment 412 are beneficial for manufacturing processes and can avoid false connections between two adjacent second protrusions 451. (Exemplary example.)

[0078] In this embodiment, the ratio between the second distance H and the first distance W is between 20% and 80%. The ratio between the period length T and the first distance W is greater than or equal to 1 and less than or equal to 7. The second distance H is greater than or equal to 0.4 mm and less than or equal to 1 mm, ensuring that the heating line 400 is not too wide while guaranteeing manufacturability, thus avoiding the heating line 400 from affecting the field of view of the communication window 300b. Under this setting, the heating unit 2 can be guaranteed to be flat and elliptical, thereby changing the direction of the diffracted light at the edge line 410, making the direction of the diffracted light at each point on the edge line 410 different, thereby dispersing the energy of the diffracted light, suppressing the wire-drawing phenomenon, reducing the range of wire-drawing light, improving the imaging quality of the camera or camera, and improving the driving safety of the vehicle 1000.

[0079] This application experimentally verifies heating wires 400 with different ratios of period length T to first distance W. The parameters of heating wire sample 1 are as follows: the ratio of period length T to first distance W is 5; the period length T is 4 mm; the first distance W is 0.8 mm; the second distance H is 0.4 mm; the radius of the chamfered section 412 is 0.1 mm; and the length direction of heating wire sample 1 is perpendicular to the incident direction of the light. Experiments show that within a 60-meter range from the heating wire 400, the diffracted light on the heating wire 400 diverges into a uniform background without any stringing.

[0080] The parameters of heating wire sample 2 are as follows: the ratio of period length T to the first distance W is 3; the period length T is 2.4 mm; the first distance W is 0.8 mm; the second distance H is 0.4 mm; the radius of the rounded corner of chamfered segment 412 is 0.1 mm; and the length direction of heating wire sample 2 is perpendicular to the incident direction of the light. Experimental results show that within a 60-meter range from the heating wire 400, the diffracted light on the heating wire 400 diverges into a uniform background without any stringing phenomenon.

[0081] The parameters of heating wire sample 3 are as follows: the ratio of period length T to the first distance W is 7; the period length T is 5.6 mm; the first distance W is 0.8 mm; the second distance H is 0.4 mm; and the fillet radius of the chamfered segment 412 is 0.1 mm. The length direction of heating wire sample 3 is perpendicular to the incident direction of light. Experiments show that within a 60-meter range from the heating wire 400, the suppression effect of heating wire sample 3 on wire pulling is lower than that of heating wire samples 1 and 2.

[0082] Comparing the three samples, heating wire sample 2 showed the best suppression effect on diffracted light and the least impact on camera recognition. The larger the ratio of the period length T to the first distance W, the weaker the suppression of diffracted light. When the ratio of the period length T to the first distance W is less than 3, the shape of the heating wire 400 tends to be the serrated shape in the first embodiment. Due to actual manufacturing factors, the shape of the edge line 410 may be indistinct, thus weakening the suppression effect on wire drawing.

[0083] Please see Figure 8 and Figure 9 , Figure 8 yes Figure 3 The diagram shown is a partial schematic of the heating wire 400 in the third embodiment. Figure 9 yes Figure 8 A partial schematic diagram of the heating wire 400 shown.

[0084] It should be noted that, for ease of description, the definition is... Figure 9 In the diagram, the length direction of each heating unit 2 is the X2 axis direction, and the width direction of each heating unit 2 is the Y2 axis direction. The X2 and Y2 axes are perpendicular to each other. Here, "perpendicular" is relative to the current technological level, not an absolute and strict mathematical definition; slight deviations are allowed, and approximations of perpendicularity are acceptable. For example, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0085] The difference between this embodiment and the second embodiment is that, along the length of the heating wire 400, in each heating unit 2, the two edge lines 410 are mirror-symmetrical about the second center line b. For example, the cross-sectional shape of the heating wire 400 is teardrop-shaped. Specifically, each heating unit 2 includes a chamfered segment 412, a first sub-segment 411a, and a second sub-segment 411b. Along the length of the heating unit 2 (the X2 axis direction in the figure), the first sub-segment 411a is connected to the chamfered segment 412. In this embodiment, the first sub-segment 411a is arc-shaped, and the first sub-segment 411a of one edge line 410 protrudes in a direction away from the other edge line 410. The radius of the arc of the first sub-segment 411a is less than or equal to 0.4 mm, ensuring that the first sub-segment 411a has sufficient curvature to effectively change the direction of the diffracted light and disperse the energy of the diffracted light, thereby reducing the wire-drawing phenomenon. For example, the radius of the arc of the first sub-segment 411a is 0.4 mm, and the radius of the fillet of the chamfered segment 412 is 0.2 mm.

[0086] Along the length of the heating unit 2 (X2 axis direction in the diagram), the second segment 411b is connected to one side of the first segment 411a and to the edge line 410 of the adjacent heating unit 2. Specifically, the second segment 411b of each heating unit 2 is connected to the chamfered segment 412 of the adjacent heating unit 2. In each heating unit 2, the projected length of the second segment 411b in the length direction of the heating unit 2 is greater than the projected length of the first segment 411a in the length direction of the heating unit 2. Along the direction from the first segment 411a to the second segment 411b, the distance between the first segments 411a of the two edge lines 410 gradually increases, and the distance between the second segments 411b of the two edge lines 410 gradually decreases. In this embodiment, the second segment 411b is straight. It should be noted that in some special scenarios where it is not necessary to reduce wire drawing, some heating wires are designed as straight lines to simplify the shape of the second segment 411b and facilitate manufacturing.

[0087] In this embodiment, when the traffic light beam from the vehicle 1000 turns towards the first segment 411a, since the first segment 411a is arc-shaped and the radius of its rounded corner is less than or equal to 0.4, and it protrudes in a direction away from the other edge line 410, the slope of the first segment 411a is relatively steep, so that the first segment 411a can maximize the divergence of the diffracted light and disperse the intensity of the diffracted light, thereby effectively suppressing the wire-drawing phenomenon. When vehicle 1000 turns left, the traffic light beam gradually moves towards the second segment 411b. Since the distance between the two edge lines 410 of the second segment 411b gradually decreases along the direction from the first segment 411a to the second segment 411b, and the projected length of the second segment 411b in the length direction of the heating unit 2 is greater than the projected length of the first segment 411a in the length direction of the heating unit 2, the slope of the second segment 411b becomes gentler. At this time, the effect of the second segment 411b in both diffracting and reducing the intensity of diffracted light is reduced. This embodiment is suitable for vehicles 1000 with specific movement route requirements.

[0088] This application sets up a heating line 400 comprising a first horizontal segment 461, a second horizontal segment 462, and a diagonal segment 463. The diagonal segment 463 connects the first horizontal segment 461 and the second horizontal segment 462, and positions both the first horizontal segment 461 and the second horizontal segment 462 outside the critical field of view 320. This prevents the first horizontal segment 461 from producing a streaking effect in the critical field of view 320, improving the imaging quality of the camera or camera and enhancing the driving safety of the vehicle 1000. Simultaneously, the diagonal segment 463 is set at a certain angle to the communication window 300b, thereby reducing the superposition of diffracted light rays and further suppressing the streaking effect. Furthermore, by designing the cross-sectional shape of each heating unit 2 in the heating line 400, specifically the shape of the two edge lines 410 of each heating unit 2, the direction of the diffracted light rays generated by the light source at the edge lines 410 is changed, and the intensity of the diffracted light rays is dispersed, thereby further suppressing the streaking effect, improving the imaging quality of the camera or camera, and reducing the need for post-processing algorithms within the camera or camera.

[0089] 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, characterized in that, The device includes a window glass and a heating wire, wherein the window glass has a communication window for transmitting optical signals, and the communication window includes a key field of view. The heating wire is disposed on the vehicle window glass and includes a first horizontal line segment, a second horizontal line segment, and a diagonal line segment. The first horizontal line segment, the second horizontal line segment, and the diagonal line segment are all located in the communication window. Along the height direction of the communication window, the first horizontal line segment and the second horizontal line segment are arranged at intervals and are located outside the key field of view area. The diagonal line segment connects the first horizontal line segment and the second horizontal line segment.

2. The vehicle window glass assembly according to claim 1, characterized in that, The key field of view includes the telephoto zone, and the oblique line segment is located outside the telephoto zone.

3. The vehicle window glass assembly according to claim 1 or 2, characterized in that, The angle between the oblique line segment and the height direction of the communication window is greater than 0 degrees and less than 60 degrees.

4. The vehicle window glass assembly according to claim 3, characterized in that, The angle between the oblique line segment and the height direction of the communication window is greater than 0 degrees and less than 30 degrees.

5. The vehicle window glass assembly according to claim 3, characterized in that, The angle between the oblique line segment and the first horizontal line segment, and the angle between the oblique line segment and the second horizontal line segment are equal.

6. The vehicle window glass assembly according to claim 3, characterized in that, The angle between the diagonal line segment and the first horizontal line segment is greater than 90 degrees and less than 120 degrees, and / or the angle between the diagonal line segment and the second horizontal line segment is greater than 90 degrees and less than 120 degrees.

7. The vehicle window glass assembly according to claim 3, characterized in that, The angle between the diagonal line segment and the first horizontal line segment is greater than 70 degrees and less than 90 degrees, and / or the angle between the diagonal line segment and the second horizontal line segment is greater than 70 degrees and less than 90 degrees.

8. The vehicle window glass assembly according to claim 1 or 2, characterized in that, There are multiple first horizontal line segments, multiple second horizontal line segments, and multiple diagonal line segments. The multiple first horizontal line segments are spaced apart from each other, the multiple second horizontal line segments are spaced apart from each other, each diagonal line segment is connected between a first horizontal line segment and a second horizontal line segment, and at least one diagonal line segment passes through the key field of view area.

9. The vehicle window glass assembly according to claim 8, characterized in that, Along the height direction of the communication window, the minimum distance between the first horizontal line segment and the second horizontal line segment connected by each of the diagonal line segments is greater than or equal to 14mm and less than or equal to 40mm.

10. The vehicle window glass assembly according to claim 8, characterized in that, The plurality of oblique line segments include a first oblique line segment and a second oblique line segment, the first oblique line segment and the second oblique line segment being respectively connected to opposite sides of the second horizontal line segment, and the extension of the first oblique line segment intersecting the extension of the second oblique line segment.

11. The vehicle window glass assembly according to claim 8, characterized in that, Along the length of the communication window, the distance between two adjacent first horizontal line segments is greater than or equal to 20mm and less than or equal to 35mm, and / or the length of the second horizontal line segment is greater than or equal to 16mm and less than or equal to 20mm.

12. The vehicle window glass assembly according to claim 8, characterized in that, The heating line includes multiple heating sections, all of which are located in the communication window. The multiple heating sections are arranged at intervals along the height direction of the communication window. Each heating section includes at least one first horizontal line segment, at least one second horizontal line segment, and at least one diagonal line segment.

13. The vehicle window glass assembly according to claim 12, characterized in that, Along the height direction of the communication window, the minimum distance between two adjacent heating elements is greater than or equal to 16 mm and less than or equal to 20 mm.

14. The vehicle window glass assembly according to claim 1 or 2, characterized in that, The heating line includes multiple heating units, all of which are located in the communication window. The multiple heating units are connected sequentially along the length of the heating line. Each heating unit has two edge lines. Along the width of the heating unit, the two edge lines are arranged opposite to each other, and one edge line protrudes in a direction away from the other edge line.

15. The vehicle window glass assembly according to claim 14, characterized in that, Each of the heating units has a first center line that is parallel to the width direction of the heating unit, and both edge lines are mirror-symmetrical about the first center line.

16. The vehicle window glass assembly according to claim 15, characterized in that, Each of the edge lines includes two chamfered segments. Along the length of the heating unit, the two chamfered segments are arranged opposite to each other and are respectively connected to the edge lines of the two adjacent heating units.

17. The vehicle window glass assembly according to claim 15 or 16, characterized in that, In each of the heating units, the two edge lines are serrated.

18. The vehicle window glass assembly according to claim 17, characterized in that, In each heating unit, along the width direction of the heating unit, the maximum distance between two edge lines is the first distance, the minimum distance between two edge lines is the second distance, and the ratio between the second distance and the first distance is between 25% and 40%.

19. The vehicle window glass assembly according to claim 17, characterized in that, The length of each heating unit is between 0.3 mm and 1.2 mm.

20. The vehicle window glass assembly according to claim 15 or 16, characterized in that, The edge lines are elliptical arcs. In each heating unit, the maximum distance between two edge lines along the width direction of the heating unit is the first distance, and the minimum distance between two edge lines is the second distance. The ratio between the second distance and the first distance is between 20% and 80%.

21. The vehicle window glass assembly according to claim 20, characterized in that, In each of the heating units, the ratio between the length of the heating unit and the first distance is greater than or equal to 1 and less than or equal to 7.

22. The vehicle window glass assembly according to claim 14, characterized in that, In each heating unit, each edge line includes a first sub-segment and a second sub-segment. Along the length direction of the heating unit, the second sub-segment is connected to one side of the first sub-segment. The projected length of the second sub-segment in the length direction of the heating unit is greater than the projected length of the first sub-segment in the length direction of the heating unit. Along the direction from the first sub-segment to the second sub-segment, the distance between the first sub-segments of the two edge lines gradually increases, and the distance between the second sub-segments of the two edge lines gradually decreases.

23. The vehicle window glass assembly according to claim 22, characterized in that, The first segment is arc-shaped, and the radius of the arc of the first segment is less than or equal to 0.4 mm.

24. The vehicle window glass assembly according to claim 22, characterized in that, The second sub-segment is linear.

25. The vehicle window glass assembly according to claim 14, characterized in that, Each of the heating units has a second center line, which is parallel to the length direction of the heating unit, and the two edge lines are mirror-symmetrical about the second center line.

26. A vehicle, characterized in that, It includes a vehicle body and a window glass assembly as claimed in any one of claims 1 to 25, the window glass assembly being mounted on the vehicle body.

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