Door window and vehicle

Abstract

This invention discloses a vehicle door window glass and a vehicle, relating to the field of glass manufacturing technology. The vehicle door window glass includes: a glass body, at least a portion of which is a weakened area, the weakened area being provided with a weakening structure, and the weakened area surrounding the end edge of the glass body. This application enables rapid window breaking to create a safe exit in a short time, which is beneficial to improving the escape safety performance of the vehicle.

Description

Technical Field

[0001] This invention relates to the field of glass manufacturing technology, and in particular to a car door window glass and a vehicle. Background Technology

[0002] For vehicles, there are some emergency scenarios where windows need to be broken for escape.

[0003] Currently, the glass used on car doors mainly includes tempered glass and laminated glass. Taking the door windows of new energy vehicles as an example, they typically use fully tempered glass or semi-tempered laminated glass.

[0004] For fully tempered glass, the surface stress is high (≥90MPa), the fragments are small and numerous (the standard requires 40 to 400 fragments within a 25mm*25mm range, with a fragment length of <100mm). Once the glass is broken, it is easy to enter or escape from the vehicle. However, because of the high surface stress, the impact resistance is also high, making it difficult to break. Special metal with sharp corners / sharp edges is needed to break the glass.

[0005] For semi-tempered laminated glass, the surface stress is ≥30MPa. The fragments are long and strip-shaped, with a length exceeding 100mm. The number of fragments within a 25mm*25mm area is less than 40. This type of laminated glass has low stress and is easy to break. However, because of the adhesion of the intermediate PVB layer, even after being broken, the fragments will still adhere to the PVB and maintain their original shape. The glass remains stuck in the door's sealing groove, making it difficult to enter the vehicle or crawl out from inside. The glass needs to be completely removed to prevent the long and strip-shaped fragments from injuring escapees or rescuers.

[0006] In addition, there is a special type of tempered laminated glass in existing car door windows that combines the two fragment states mentioned above. The outer layer is fully tempered and granular, while the inner layer uses tempered glass fragments in the form of thin strips. It is not easy to break, and it also makes it difficult for escapees or rescuers to pass through quickly.

[0007] If breaking a window is difficult, it can hinder escape / rescue efforts if the door handle fails. This is especially true for new energy vehicles, where a crushed, deformed, or exploding battery typically begins to spontaneously combust within 1 to 2 minutes, leaving very little time for escape.

[0008] Therefore, it is necessary to propose a new type of car door and window glass to solve the above problems. Summary of the Invention

[0009] In view of the shortcomings of the existing technology, the present invention provides a car door window glass and a vehicle that can quickly break the window to form a safe exit in a short time, which helps to improve the escape safety performance of the vehicle.

[0010] The specific technical solution of the embodiments of the present invention is as follows:

[0011] A vehicle door window glass, the vehicle door window glass comprising:

[0012] The vehicle door window glass includes: a glass body, at least a portion of which is a weakened area, the weakened area being provided with a weakening structure, and the weakened area surrounding the end edge of the glass body.

[0013] In a preferred embodiment, the glass body comprises tempered glass, and the weakening structure is disposed in at least a portion of the middle and / or surface of the tempered glass along the thickness direction of the glass body.

[0014] In a preferred embodiment, the weakening structure includes a plurality of spaced-apart fracture points.

[0015] In a preferred embodiment, the weakened area is located close to the door frame on which the glass body is installed, and the weakened area is more than or equal to 5 mm away from the edge of the glass body.

[0016] In a preferred embodiment, the edge of the glass body includes multiple contour lines, and two adjacent contour lines intersect to form an intersection point. The weakened area is located at the corner near the intersection point.

[0017] In a preferred embodiment, the weakening structure is a trademark or predetermined pattern formed on the surface of the glass body.

[0018] In a preferred embodiment, the thickness of the tempered glass is between 2.5 mm and 5.0 mm.

[0019] In a preferred embodiment, the glass body includes laminated glass, which comprises an inner glass pane, an adhesive layer, and an outer glass pane arranged sequentially along the thickness direction.

[0020] The weakening structure includes: a first defect disposed in at least a portion of the middle and / or surface of the inner glass pane; a second defect disposed in at least a portion of the middle and / or surface of the outer glass pane; and a third defect disposed on the adhesive layer.

[0021] The weakened region is formed by the locations of the first and second defects being at least partially opposite each other, and the third defect is located in the weakened region.

[0022] In a preferred embodiment, the weakened region is located in the water-cutting region, which is the area enclosed by offsetting 10 mm upwards and downwards from the water-cutting centerline.

[0023] In a preferred embodiment, the third defect includes a continuous or discontinuous pre-defined fracture line that covers the water-cut centerline.

[0024] In a preferred embodiment, the end of the preset fracture is at least 5 mm away from the edge of the glass body.

[0025] In a preferred embodiment, the first defect of the inner glass includes: a plurality of spaced-apart break points and / or a plurality of openings with a predetermined diameter; the second defect of the outer glass includes a plurality of spaced-apart break points.

[0026] In a preferred embodiment, the thickness of the inner glass pane is between 0.7 mm and 2.5 mm; the thickness of the outer glass pane is between 1.6 mm and 5.0 mm.

[0027] A vehicle includes a body having a door frame for mounting glass, the door frame having any of the aforementioned door window glass mounted thereon.

[0028] The technical solution of the present invention has the following significant beneficial effects:

[0029] The vehicle door window glass provided in this application embodiment, by setting a weakened area with a weakened structure, makes it easier to break the glass in the weakened area, thereby quickly breaking the window to form a safe exit in a short time and effectively reducing escape time; especially for laminated glass with an adhesive layer, the weakened area and pre-set fracture line at the water-cut position make the glass easier to bend, thereby forming a safe exit with a sufficiently large area, which helps to improve the vehicle's escape safety performance.

[0030] Specific embodiments of the invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Within the spirit and scope of the appended claims, embodiments of the invention include many changes, modifications, and equivalents. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0031] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0032] Figure 1 This is a schematic diagram of the structure of the first type of vehicle door window glass provided in the embodiments of this application;

[0033] Figure 2 for Figure 1 An enlarged schematic diagram of a weakened area in a car door window glass provided in the figure;

[0034] Figure 3 for Figure 2 The first cross-sectional view at location AA of the weakened region;

[0035] Figure 4 for Figure 2 The second cross-sectional view at location AA of the weakened region;

[0036] Figure 5 for Figure 2 A third cross-sectional view at location AA in the weakened region;

[0037] Figure 6 This is a structural schematic diagram of the second type of vehicle door window glass provided in the embodiments of this application;

[0038] Figure 7 for Figure 6 First cross-sectional view of the weakened area BB in the middle adhesive layer;

[0039] Figure 8 for Figure 6 A second cross-sectional view of the weakened area BB in the middle adhesive layer;

[0040] Figure 9 for Figure 6 The diagram provided shows a partially enlarged view of an adhesive layer at a water-cut position.

[0041] Reference numerals in the figures of this application:

[0042] 100. Glass body;

[0043] 110. Weakened area;

[0044] 101. Fault point;

[0045] 102. Corners;

[0046] 111. Inner surface; 112. Outer surface;

[0047] 200. Inner glass pane;

[0048] 300, Adhesive layer;

[0049] 301. Crack;

[0050] 400. Outer glass pane;

[0051] 500. Water cutting area;

[0052] 501. Water cut center line. Detailed Implementation

[0053] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.

[0054] This invention provides a car door window glass and a vehicle that can quickly break the window to create a safe exit in a short time, which helps to improve the vehicle's escape safety performance.

[0055] Please refer to the following for comprehensive information. Figures 1 to 9 This application specification provides a vehicle door window glass, which may include: a glass body 100, at least a portion of which is a weakened area 110, the weakened area 110 being provided with a weakening structure, and the weakened area 110 surrounding an end edge of the glass body 100. When a predetermined force is applied to the weakened area 110, the glass body 100 can break the window and form a safety exit within a predetermined time at the location of the weakened area 110.

[0056] In this embodiment, the vehicle door window glass may include a glass body 100, and the specific type of the glass body 100 may include tempered glass, laminated glass, or other glass forms that can be applied to vehicle door windows. In this embodiment, the glass body 100 is mainly illustrated using tempered glass and laminated glass as examples.

[0057] Of course, the specific arrangement of the glass body 100 can also be in other ways, and is not limited to the above description. Those skilled in the art may make other changes under the guidance of the technical essence of this application, but as long as the function and effect achieved are the same as or similar to this application, they should be covered within the scope of protection of this application.

[0058] In this embodiment, at least a portion of the glass body 100 is a weakened region 110, which is provided with a weakening structure and is disposed around the end edge of the glass body 100. When a predetermined force is applied to the weakened region 110, the glass body 100 can form a window that can be broken within a predetermined time at the location of the weakened region 110.

[0059] The predetermined time is less than 1 minute. When the car door and window glass provided in this application is used in a vehicle, in an emergency requiring the window to be broken, the time to form a safe exit is less than 1 minute, thus better meeting the escape safety performance requirements of various vehicle types.

[0060] The specific dimensions of the safety exit need to meet certain requirements to ensure timely evacuation for occupants inside the vehicle. Specifically, the minimum dimensions of the safety exit are 520 mm × 265 mm to meet escape requirements. In the embodiments of this application, when the vehicle door / window glass is used in a vehicle, its specific dimensions can be 700 mm × 600 mm. Of course, the specific dimensions of the safety exit can be adapted to different dimensions such as the size of the vehicle door / window glass, and this application does not impose a single numerical limitation on it.

[0061] The present application will be described in detail below with reference to specific embodiments and accompanying drawings.

[0062] Please refer to the following for comprehensive information. Figures 1 to 5 In some embodiments, the glass body 100 may include tempered glass, and the weakening structure is disposed in at least a portion of the middle and / or surface of the tempered glass along the thickness direction of the glass body 100.

[0063] In this embodiment, the glass body 100 may include tempered glass, the surface compressive stress of which is greater than or equal to 90 MPa. The thickness of the tempered glass may be between 2.5 mm and 5.0 mm. The thickness of the tempered glass may vary depending on the specific application scenario and the performance parameters required for the glass in that scenario. In this embodiment, it is not excluded that the thickness of the tempered glass is greater than 5 mm or less than 2.5 mm. For example, the thickness of the tempered glass may include any of the following: 2.85 mm / 3.15 mm / 3.5 mm / 3.85 mm / 4.85 mm. The tempered glass may specifically be fully tempered glass. Of course, the specific form and thickness of the tempered glass may be adapted to different application scenarios, and this application does not impose a unique limitation.

[0064] In this embodiment, it can be achieved by placing a piece of glass in the middle of the glass body 100 (e.g., Figure 3 (as shown) or inner surface 111 (as shown) Figure 4 As shown), outer surface 112 (as shown) Figure 5 (As shown) Some defects are introduced to form a weakened structure, thereby reducing the strength of the glass body 100 at the weakened area 110 where the weakened structure is provided, so that when the location is hit later, the glass can break quickly to form a safe exit to meet the safety performance requirements for short-term escape.

[0065] Specifically, the location, size, geometry, and depth of the defects used to form the weakening structure can vary depending on different glass manufacturing processes and special requirements, and this application does not impose specific limitations here. For example, Figure 2 As shown, the weakening structure may include a plurality of spaced-apart break points 101.

[0066] In this embodiment, the area enclosed by the outer edge contours corresponding to the multiple spaced break points 101 is the weakened region 110. The specific size and shape of the weakened region 110 are not uniquely limited in this application.

[0067] In one embodiment, the weakened area 110 is located near the door frame on which the glass body 100 is mounted. Specifically, the door frame may be a frame structure formed on a vehicle door for mounting the glass.

[0068] In this embodiment, the weakened area 110 is located close to the door frame where the glass body 100 is installed, that is, the weakened area 110 is located close to the edge of the glass body 100. When the weakened area 110 is located close to the door frame where the glass body 100 is installed, the deformation of the glass body 100 is relatively small when subjected to external impact (such as breaking a window), and the glass body 100 is more easily broken. Conversely, if the weakened area 110 is located far from the door frame, such as in the middle area, the deformation of the glass body 100 will be larger when subjected to external impact (breaking a window), and the deformation will absorb energy, so the glass body 100 is not easily broken.

[0069] like Figure 1 As shown, furthermore, the weakening area 110 can be located at the corner 102 of the glass body 100, that is, near the corner of the glass body 100. Specifically, the end edge of the glass body 100 includes multiple contour lines, and adjacent two contour lines intersect to form an intersection point. The corner 102 is the area near the intersection point. When the glass body 100 is assembled with the door frame, the corner 102 can be located in the window of the door frame, that is, it will not be obstructed by the door frame.

[0070] For example, there can be four corners, and each of the four corners can have a weakened area 110. So when an emergency requires breaking a window, you can break the window quickly by striking any one of the four corners.

[0071] When the weakened area 110 is close to the door frame, specifically at the corner where the two side frames meet, the glass body 100 will deform less because the door frame provides support. The smaller the deformation, the greater the energy. Once the glass body 100 cannot withstand the impact energy, it will be easier to break.

[0072] Since the glass body 100 needs to be assembled with the door frame, the weakened area 110 is at least 5 mm away from the edge of the glass body 100. This distance is a pre-reserved assembly distance. Depending on the assembly dimensions between the car door window glass and the applicable door frame, the required pre-reserved distance between the weakened area 110 and the edge of the glass body 100 will vary. Overall, it must be ensured that after the glass body 100 is assembled with the door frame, the weakened area 110 is located outside the door frame.

[0073] In one embodiment, the weakening structure can be a defect introduced by a laser.

[0074] When the weakening structure is introduced by laser, it can be introduced by laser before bending or after bending. Specifically, this application does not impose any specific limitations.

[0075] When defects are introduced via laser, their shape, structure, and location can be precisely controlled. Specifically, the weakened structure can be a trademark or predetermined pattern formed on the surface of the glass body 100 using a laser. This achieves a balance between aesthetics and practicality.

[0076] Of course, in the embodiments of this application, defects can also be introduced in other ways, such as physical weakening, chemical weakening, etc. Relatively speaking, when a weakening structure is formed by laser, the controllability is high, and it is easy to form a weakening structure with a predetermined shape and structure at a specified position with high precision.

[0077] Please refer to the following: Figures 6 to 9 In other embodiments, the glass body 100 includes laminated glass, which includes an inner glass 200, an adhesive layer 300, and an outer glass 400 arranged sequentially along the thickness direction. The weakening structure includes: a first defect provided in at least a portion of the middle and / or surface of the inner glass 200; a second defect provided in at least a portion of the middle and / or surface of the outer glass 400; a third defect provided on the adhesive layer 300; the positions where the first and second defects are provided are at least partially opposite to each other, forming the weakening region 110, and the third defect is located in the weakening region 110.

[0078] The glass body 100 can be laminated glass, which may include an inner glass sheet 200, an adhesive layer 300, and an outer glass sheet 400 arranged sequentially in the thickness direction. The thickness of the inner glass sheet 200 is between 0.7 mm and 2.5 mm; for example, the thickness of the inner glass sheet 200 may include any of the following: 2.1 / 1.6 / 1.4 / 1.1 / 0.7 mm. The thickness of the outer glass sheet 400 can be between 1.6 mm and 5 mm; for example, the thickness of the outer glass sheet 400 may include any of the following: 3.5 / 3.2 / 2.85 / 2.1 / 1.6 / 1.4 / 1.1 / 0.7 mm. The thickness of the inner glass sheet 200 may be the same as or different from that of the outer glass sheet 400. The adhesive layer 300 can be a transparent thermoplastic polymer film or a colored thermoplastic polymer film, and the thickness of the adhesive layer 300 can be between 0.38 mm and 2.28 mm. For example, the thickness of the adhesive layer 300 can be, but is not limited to, 0.38 mm, 0.76 mm, 1.14 mm, 1.52 mm, 1.9 mm, 2.28 mm, or other values ​​between 0.38 mm and 2.28 mm. The material of the thermoplastic polymer film can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), and ionic polymers (SGP). In the embodiments of this application, the material of the adhesive layer 300 is mainly illustrated using polyvinyl butyral (PVB) as an example. When other materials are used for the adhesive layer 300, this application can be adapted accordingly.

[0079] In this embodiment, weakening regions 110 can be provided on the inner glass 200 and the outer glass 400. Furthermore, a weakening structure is also introduced on the adhesive layer 300. Specifically, the weakening structure may include: a first defect provided in at least a portion of the middle and / or surface of the inner glass 200; a second defect provided in at least a portion of the middle and / or surface of the outer glass 400; a third defect provided on the adhesive layer 300; the weakening regions 110 are formed with the positions of the first and second defects at least partially opposite each other, and the third defect is located in the weakening regions 110.

[0080] The weakened area 110 can be located in the water-cut area 500, which is an area offset upwards and downwards by 10 mm from the water-cut center line 501. Specifically, the weakened area 110 of the inner glass 200 and the outer glass 400 can both be located in the water-cut area 500.

[0081] For laminated glass, because an adhesive layer 300 is provided in the middle, even if the glass is broken, the glass fragments will still stick to the adhesive layer 300 and may still be difficult to bend, thus affecting the time it takes to form a safety exit.

[0082] When it is necessary to break a window, most people will apply pushing / pulling force to the middle area of ​​the door glass. The water-cut position is a more effective stress point for the door glass to break. When the weakening zone 110 is set in the water-cut area 500, it is easier to bend the glass in this area afterward, which can help shorten the time to form a safe exit. In addition, after the glass is bent at the water-cut position, the window that can be used to escape is also the largest, which can ensure that the size of the safe exit is large enough.

[0083] Of course, the definition of the water-cutting area 500 may vary slightly depending on the size and structure of the door frame to which the laminated glass is installed. Those skilled in the art can make adaptive adjustments to the boundary range defined above based on the specific application scenario, provided that the content disclosed in this application is true.

[0084] For the inner glass 200 and outer glass 400 mentioned above, the method of introducing defects into the glass can refer to the specific description of tempered glass above. For example, for the inner glass 200 or outer glass 400, some defects can also be introduced in the middle of the glass or on the inner surface 111 / outer surface 112. The location, size, geometry, and depth of the defects can be adapted to different glass manufacturing processes and special requirements. The defect can also be introduced by laser, as mentioned above; that is, the first defect, the second defect, and the third defect can be introduced by laser.

[0085] Specifically, the second defect in the outer glass 400 may include a plurality of spaced-apart fracture points 101. The specific arrangement of these fracture points 101 can be found in the textual description and appendix of the above-described tempered glass embodiment. Figures 3 to 5 .

[0086] Specifically, the first defect of the inner glass 200 may include: a plurality of spaced-apart fracture points 101 and / or a plurality of openings with a predetermined diameter.

[0087] The first defect in the inner glass 200 may include a plurality of spaced-apart fracture points 101. The specific arrangement of these fracture points 101 can be found in the textual description and appendix of the above-described tempered glass embodiments. Figures 3 to 5 .

[0088] Furthermore, the first defect of the inner glass 200 can also take other forms. For example, the first defect of the inner glass 200 can include multiple openings with a predetermined diameter. These openings can be through holes or blind holes. Since the inner glass 200 is located near the vehicle interior, a series of small-diameter through holes or blind holes can be provided on the glass, thereby reducing the strength of the inner glass 200 at the location of the openings, thus forming the first defect, without negatively affecting the overall appearance or reliability of the glass.

[0089] Please see Figure 7 and Figure 8 In one embodiment, the third defect may include a continuous or discontinuous preset fracture 301, the preset fracture 301 covering the water shear centerline 501.

[0090] In this embodiment, such as Figure 7 As shown, the adhesive layer 300 can be provided with continuous preset fracture lines 301 at the water-cutting position by means of laser or other methods. The continuous fracture lines 301 can be a whole strip of crack extending along the longitudinal length of the water-cutting center line 501.

[0091] Or, such as Figure 8 As shown, the adhesive layer 300 can be provided with a plurality of pre-set fracture lines 301 at intervals at the water-cutting position by means of laser or other methods. The plurality of pre-set fracture lines 301 at intervals can also be arranged longitudinally along the water-cutting center line 501.

[0092] Overall, the end of the fracture 301 is spaced at a predetermined distance from the edge of the laminated glass, thereby preventing external moisture from entering the interior of the laminated glass. Specifically, the end of the predetermined fracture 301 is at least 5 mm away from the edge of the glass body 100, thus reliably blocking external moisture and preventing problems such as delamination and bubbles in the adhesive layer 300 of the laminated glass due to external environmental influences.

[0093] For the inner glass 200 or the outer glass 400, defects on them can be introduced before or after bending.

[0094] Regarding the third defect in the adhesive layer 300, if it is introduced before lamination, the adhesive layer 300 will gradually melt under the action of high temperature and high pressure during the lamination process, causing the introduced fracture 301 to fuse together again. Therefore, in order to ensure that the fracture 301 is not affected by high temperature and high pressure and fails, it is necessary to introduce the fracture 301 after the laminated glass is laminated.

[0095] To verify the escape safety performance of the vehicle door and window glass provided in this application, the inventors conducted the following comparative experiment. The experimental steps are as follows:

[0096] Simulate using a safety hammer to strike the window from inside the car, shatter the glass, and then push the glass outward to create a safety exit; record the escape time required from the start of breaking the window from inside the car to the formation of a safety exit.

[0097] Table 1

[0098]

[0099] Referring to Table 1, the above experiments can also fully demonstrate that:

[0100] The vehicle door window glass provided in this application embodiment, by setting a weakened area 110 with a weakening structure, makes it easier to break the glass in the weakened area 110, and achieves rapid window breaking to form a safety exit in a short time, thereby effectively shortening the escape time. Specifically, the escape time can be shortened from more than 2 minutes to less than 1 minute, about 40 seconds. In particular, for laminated glass with an adhesive layer 300, the weakened area 110 and the preset fracture line 301 set at the water-cutting position make the glass easier to bend, thereby forming a safety exit with a sufficiently large area, which is conducive to improving the escape safety performance of the vehicle.

[0101] This application also provides a vehicle that includes the aforementioned door and window glass. By providing the aforementioned door and window glass, the vehicle can achieve the technical effects achieved by the aforementioned door and window glass implementation method. For details, please refer to the specific description of the aforementioned implementation method. This application will not repeat the details here.

[0102] The vehicle includes a body, and the body has a door frame for mounting glass, on which the door window glass described in the above embodiments is mounted.

[0103] The vehicle door and window glass provided in this application embodiment can be applied to the doors and windows of various vehicles, such as rail vehicles and new energy vehicles.

[0104] For example, taking current new energy vehicles as an example, in order to reduce wind resistance, enhance the vehicle's technological appearance, and make the overall vehicle sleek and aesthetically pleasing, the door handles are designed as hidden structures. According to calculations, a single hidden door handle can reduce wind resistance by 0.003 Cd, and four door handles can reduce it by a total of 0.012 Cd. For every 0.01 Cd reduction in the drag coefficient of a pure electric vehicle, the driving range can increase by more than five kilometers per 100 kilometers.

[0105] While concealed door handles can enhance the overall aesthetics and aerodynamics of a vehicle, they also present some safety hazards, including:

[0106] 1. Difficulty in escaping: In an emergency, the lack of obvious signs or visibility in the vehicle (especially some models that do not have door handles at all, or models that use NFC, fingerprint or button switches on the B / C pillar) may make it take passengers longer to successfully open the door;

[0107] 2. Difficulty or unfamiliarity with operation: Some concealed door handle designs may require specific operating methods or greater force to open, which may make it difficult for some passengers to quickly open the door in an emergency;

[0108] 3. Technical malfunction: Invisible door handles usually rely on electronic or mechanical systems to open. If these systems malfunction or lose power, passengers may be unable to open the door.

[0109] 4. Safety of children and elderly passengers: Children or elderly passengers may not be able to operate the concealed door handles effectively due to insufficient physical strength or technical difficulties, which increases the safety risks in emergency situations; some doors are also equipped with child locks, making it impossible to open the door from the inside.

[0110] In situations where a child is trapped inside a vehicle and the doors cannot be opened from the inside, breaking a window is necessary. If breaking the window is difficult, and the door handle is malfunctioning, escape / rescue will also be hampered. This is especially true for new energy vehicles, where battery compression, deformation, and explosion can lead to spontaneous combustion within 1-2 minutes, leaving very limited escape time. The door and window glass provided in this application can reduce the time it takes for the glass to form a safe exit to less than one minute, thus better meeting the needs of such scenarios with stringent escape time requirements.

[0111] The above are merely a few embodiments of the present invention. Although the embodiments disclosed in the present invention are as described above, the content is only for the purpose of facilitating understanding of the present invention and is not intended to limit the present invention. Any person skilled in the art to which this invention pertains may make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed in the present invention. However, the patent protection scope of the present invention shall still be determined by the scope defined in the appended claims.

Claims

1. A type of vehicle door window glass, characterized in that, The vehicle door window glass includes: a glass body, at least a portion of which is a weakened area, and the weakened area is provided with a weakening structure; The glass body includes laminated glass, which includes an inner glass sheet, an adhesive layer, and an outer glass sheet arranged sequentially along the thickness direction. The weakened area is located at least in the water-cut region, which is the area enclosed by offsetting 10 mm upwards and downwards from the water-cut centerline. The weakening structure of the water-cutting region includes: a first defect provided in at least a portion of the middle and / or surface of the inner glass, and a second defect provided in at least a portion of the middle and / or surface of the outer glass; the positions where the first defect and the second defect are provided are at least partially opposite to each other to form the weakening region.

2. The vehicle door window glass as described in claim 1, characterized in that, The weakened area is also provided around the end edge of the glass body.

3. The vehicle door window glass as described in claim 2, characterized in that, The weakening structure surrounding the end edge of the glass body includes a plurality of spaced-apart fracture points.

4. The vehicle door window glass as described in claim 2, characterized in that, The weakening zone, which is set around the end edge of the glass body, is located near the door frame on which the glass body is installed, and the distance between the weakening zone and the end edge of the glass body is greater than or equal to 5 mm.

5. The vehicle door window glass as described in claim 4, characterized in that, The end edge of the glass body includes multiple contour lines, and two adjacent contour lines intersect to form an intersection point. The weakening area surrounding the end edge of the glass body is located at the corner near the intersection point.

6. The vehicle door window glass as described in claim 1 or 2, characterized in that, The weakening structure is a trademark or predetermined pattern formed on the surface of the glass body.

7. The vehicle door window glass as described in claim 1, characterized in that, The weakening structure includes a third defect disposed on the adhesive layer, the third defect being located in the weakened region of the water-cutting region.

8. The vehicle door window glass as described in claim 7, characterized in that, The third defect includes a continuous or discontinuous pre-defined fracture line that covers the water-cut centerline.

9. The vehicle door window glass as described in claim 8, characterized in that, The end of the preset fracture is at least 5 mm away from the edge of the glass body.

10. The vehicle door window glass as described in claim 1, characterized in that, The first defect of the inner glass includes: multiple spaced-apart break points and / or multiple openings with a predetermined diameter; the second defect of the outer glass includes multiple spaced-apart break points.

11. The vehicle door window glass as described in claim 1, characterized in that, The thickness of the inner glass pane is between 0.7 mm and 2.5 mm; the thickness of the outer glass pane is between 1.6 mm and 5.0 mm.

12. A vehicle, characterized in that, The vehicle includes a body, the body having a door frame for mounting glass, the door frame being fitted with the door window glass as described in any one of claims 1 to 11.

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