Bulletproof vehicle window glass sealing system and sealing method thereof
By using a wear-resistant coating and resin diaphragm design to perfectly match the sealing strip body with the bulletproof glass, the issues of visual quality, aerodynamic performance, and user experience of the bulletproof vehicle window sealing system are resolved, achieving a smooth transition surface and durable and quiet sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI RONGNAN TECH CO LTD
- Filing Date
- 2026-02-04
- Publication Date
- 2026-04-24
AI Technical Summary
Existing bulletproof vehicle window sealing systems, while aiming for ultimate safety and a luxurious experience, suffer from issues such as poor visual quality, compromised aerodynamic and NVH performance, poor lifting and durability of heavy-duty windows, insufficient sealing reliability, and a poor user experience.
The sealing strip body, designed with a wear-resistant coating, is interference-fitted with the bulletproof glass and combined with a resin diaphragm to form O-type and C-type structures, achieving a tight fit between the sealing strip and the glass, providing load-bearing and guiding functions, and isolating water, dust and noise through a double-seal design.
It achieves a smooth, seamless transition surface, enhancing the visual sophistication, reducing resistance to glass lifting, ensuring the durability and quietness of the seal, and improving the user experience.
Smart Images

Figure CN121912781A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive body sealing technology, and in particular to a bulletproof window glass sealing system and its sealing method. Background Technology
[0002] With the continuous development of the high-end civilian bulletproof vehicle market, users not only have extremely high requirements for the safety protection performance of vehicles, but also demand standards for their appearance, ride comfort, and quietness that are no different from those of traditional luxury passenger cars. As a visual focal point and key functional component on the side of the vehicle, the quality of the door glass system directly affects the overall vehicle image and user experience. Among them, the glass sealing guide channel is a core component that determines the performance of this area. It is fixed to the door window frame and undertakes the core functions of guiding the glass lifting and lowering, providing dynamic / static sealing (waterproofing, sound insulation, dustproofing), and shock absorption.
[0003] For civilian bulletproof vehicles, the windows use multi-layered, thick bulletproof glass, which can weigh 3-5 times more than ordinary car window glass. This characteristic places extremely stringent requirements on the sealing guide channels:
[0004] 1. Extremely strong structural load-bearing capacity: The guide channel must have extraordinary clamping force and structural rigidity to be reliably fixed to the door frame and support the smooth and stable lifting of heavy glass for hundreds of thousands of times without abnormal noise or loosening.
[0005] 2. Durable and reliable sealing: It must form a continuous and uniform high-pressure sealing interface with the bulletproof glass and window frame to ensure the integrity of the seal under various working conditions.
[0006] Currently, due to cost and design inertia, the vast majority of civilian bulletproof vehicles on the market still use glass-sealed guide channels that are "reinforced" from traditional structures. This solution typically manifests as follows: 1. Thicker metal frame and harder rubber material are used to improve strength.
[0007] 2. Retains the traditional U-shaped clamping structure and multiple internal sealing lip design.
[0008] 3. There is a significant step difference (i.e., "step difference") between its outer surface and the metal outer panel of the car door and window frame, which creates a visual discontinuity.
[0009] The aforementioned "reinforced" traditional guide channel solution reveals the following fundamental flaws when addressing the dual standards (ultimate safety and luxurious experience) of civilian armored vehicles: 1. Poor visual quality, seriously inconsistent with high-end positioning: The obvious "step difference" destroys the smooth and clean surface of the side of the car door, giving people a rough and outdated look, which cannot meet the expectations of high-end civilian users for vehicle aesthetics and exquisite craftsmanship, and is incompatible with the luxurious design language of other parts of the vehicle.
[0010] 2. Impaired aerodynamic and NVH performance: Exposed step differences will disrupt side airflow when the vehicle is traveling at high speeds, generating additional wind noise and seriously affecting cabin quietness (NVH performance), which runs counter to the core pursuit of comfort in civilian vehicles.
[0011] 3. Poor performance and durability of heavy-duty glass lifters: The traditional structure, which is simply "reinforced," fails to fundamentally optimize the mechanical distribution. The increased clamping force of the sealing lip to support the heavy glass results in excessive load on the glass lifter motor, increased risk of lifting jamming, and significant operating noise. Furthermore, the sealing lip inside the guide groove wears faster due to long-term exposure to enormous friction, affecting the seal's lifespan.
[0012] 4. Potential issues with sealing reliability: Under the long-term dragging of heavy glass and the torsional deformation of the vehicle body, the sealing lip of the traditional guide channel is prone to plastic deformation or local curling, resulting in uneven sealing pressure, which may lead to weather seal failure under extreme conditions.
[0013] 5. "Clumsy" user experience: The heavy lifting and rattling glass system directly conveys a "clumsy" negative experience to users, weakening the "composed" luxury that a civilian bulletproof vehicle should possess.
[0014] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention
[0015] The purpose of this invention is to solve the technical problem that existing technologies cannot reconcile the contradiction between "zero-step difference" and "heavy glass lifting performance" in the field of civilian bulletproof vehicles. To this end, a bulletproof vehicle window glass sealing system is provided.
[0016] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A method for sealing bulletproof vehicle window glass includes: snapping one end of a sealing strip body into a U-groove formed by a decorative strip and a bulletproof decorative panel, and snapping the other end into a U-groove of a metal guide rail; applying a wear-resistant material to both the first and second wear-resistant coating contact portions of the sealing strip body, and applying resin material to the positions of the bulletproof glass near the first and second wear-resistant coating contact portions; tightly fitting the first wear-resistant coating contact portion to the edge of the bulletproof decorative panel, and tightly fitting the second wear-resistant coating contact portion to the edge of the bulletproof steel plate; when the glass is raised or lowered, the first wear-resistant coating contact portion slides and rubs against the bulletproof glass while the two are tightly fitted, and the second wear-resistant coating contact portion slides and rubs against the bulletproof glass while the two are tightly fitted.
[0017] A bulletproof vehicle window sealing system includes a sealing strip body. One end of the sealing strip body is engaged in a U-groove formed by a decorative strip and a bulletproof decorative panel, while the other end of the sealing strip body is engaged with a U-groove of a metal guide rail to ensure a stable installation. The sealing strip body has a first wear-resistant coating abutment portion, which is located in the gap between the bulletproof decorative panel and the bulletproof glass. The first wear-resistant coating abutment portion is tightly fitted to the edge of the bulletproof decorative panel and is slidably connected to the bulletproof glass, with both parts in close contact. The sealing strip body also has a second wear-resistant coating abutment portion, which is located in the gap between a bulletproof steel plate and the bulletproof glass. The second wear-resistant coating abutment portion is tightly fitted to the edge of the bulletproof steel plate and is slidably connected to the bulletproof glass, with both parts in close contact.
[0018] The following is a further defined technical solution of the system in this invention: the sealing strip body is engaged in the groove of the decorative groove by means of a snap-fit protrusion, the sealing strip body abuts against the inner wall of the bulletproof decorative plate by means of abutting ribs, and the snap-fit protrusion and abutting ribs are respectively arranged on both sides of the end of the sealing strip body.
[0019] The following is a further defined technical solution of the system in this invention: the sealing strip body and the wear-resistant coating contact part are hollowed out to form an O-shaped hollow area, and the bulletproof glass slides so that the wear-resistant coating contact part is recessed into the O-shaped hollow area.
[0020] The following is a further defined technical solution of the system in this invention: the sealing strip body is engaged with the U-groove of the metal guide rail by the grippers on both sides, and the U-groove of the metal guide rail is provided with an inward protrusion for the grippers to hold.
[0021] The following is a further technical solution of the system in this invention: the wear-resistant coating contact part two is provided with an arc-shaped concave shape that matches the edge of the bulletproof steel plate.
[0022] The following is a further defined technical solution of the system in this invention: the end of the sealing strip body is connected to the wear-resistant coating abutment part to form a C-shaped hollow area, and the sliding of the bulletproof glass causes the wear-resistant coating abutment part to be recessed into the C-shaped hollow area.
[0023] The following is a further defined technical solution of the system in this invention: a resin film is provided on one side of the bulletproof glass near the wear-resistant coating abutment part one, and the resin film one makes sliding contact with the wear-resistant coating abutment part one.
[0024] The following is a further defined technical solution of the system in this invention: a resin film 2 is provided on one side of the bulletproof glass near the wear-resistant coating abutment part 2, and the resin film 2 makes sliding contact with the wear-resistant coating abutment part 2.
[0025] Compared with the prior art, the present invention has the following technical effects: This invention utilizes an interference fit design between the gun barrel structure (an O-shaped structure consisting of a wear-resistant coating contact part and the main body of the sealing strip) and the bulletproof glass. This serves as the load-bearing and guiding core of the sealing strip, forming the first seal with the bulletproof decorative panel, thus enabling the glass lifting function. Because the bulletproof glass is very heavy, a resin diaphragm is installed on it to reduce lifting resistance. Simultaneously, the sealing strip has a wear-resistant coating on the gun barrel structure to prevent wear and reduce lifting resistance. Furthermore, an interference fit design is used between the sealing lip (a C-shaped structure consisting of a wear-resistant coating contact part and the main body of the sealing strip) and the bulletproof glass. Again, this serves as the load-bearing and guiding core of the sealing strip, and a resin diaphragm is installed on the bulletproof glass to reduce lifting resistance. The sealing lip and the bulletproof steel plate have an arc-shaped interference fit design to prevent gaps and create a second seal. Through these first and second seal designs, water, dust, and noise are effectively isolated, ensuring the quietness and cleanliness of the vehicle compartment.
[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention.
[0029] Reference numerals: 1. Sealing strip body; 101. Wear-resistant coating contact part one; 102. Wear-resistant coating contact part two; 102a. Arc-shaped concave; 103. Snap-fitting protrusion; 104. Contacting rib; 105. Clamping claw; 2. Decorative groove; 3. Bulletproof decorative panel; 4. Metal guide rail; 401. Convex; 5. Bulletproof glass; 6. Bulletproof steel plate; 7. O-shaped hollow area; 8. C-shaped hollow area; 9. Resin diaphragm one; 10. Resin diaphragm two; 11. Door sheet metal. Detailed Implementation
[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0032] In the description of this invention, it should be understood that the terms "a" and "b" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "a" or "b" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0033] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.
[0034] like Figure 1 As shown, this embodiment provides a bulletproof vehicle window glass sealing system, which mainly consists of a sealing strip body 1 (elastic body), a wear-resistant coating abutment part 101 and a wear-resistant coating abutment part 102 on the sealing strip body 1, a snap-fit U-groove structure formed by the decorative groove strip 2 and the bulletproof decorative plate 3, a metal guide rail 4, a resin diaphragm 9, a resin diaphragm 10, a bulletproof glass 5, a bulletproof steel plate 6, a vehicle door sheet metal 11, and a bulletproof decorative plate 3.
[0035] like Figure 1As shown, the left end of the sealing strip body 1 is engaged in the U-groove formed by the decorative groove 2 and the bulletproof decorative plate 3. Specifically, the sealing strip body 1 is engaged in the groove of the decorative groove 2 by the engaging protrusion 103, and the sealing strip body 1 abuts against the inner wall of the bulletproof decorative plate 3 by the abutting rib 104. The engaging protrusion 103 and the abutting rib 104 are respectively arranged on both sides of the left end of the sealing strip body 1. At the same time, the right end of the sealing strip body 1 is engaged with the U-groove of the metal guide rail 4 to ensure a stable installation. Specifically, the sealing strip body 1 is engaged in the U-groove of the metal guide rail 4 by the clamps 105 on both sides. The U-groove of the metal guide rail 4 is provided with an inner protrusion 401 for the clamps 105 to hold. The metal guide rail 4 is located between the door sheet metal 11 and the bulletproof steel plate 6.
[0036] The sealing strip body 1 is provided with a wear-resistant coating abutment part 101 (the wear-resistant coating abutment part 101 is composed of the sealing strip and its surface wear-resistant coating). The wear-resistant coating abutment part 101 is located in the gap between the bulletproof decorative panel 3 and the bulletproof glass 5. The wear-resistant coating abutment part 101 is tightly fitted to the edge of the bulletproof decorative panel 3, and the wear-resistant coating abutment part 101 is slidably connected to the bulletproof glass 5 and the two are tightly fitted. A hollow space is set between the sealing strip body 1 and the wear-resistant coating abutment part 101 to form an O-shaped hollow area 7. The sliding of the bulletproof glass 5 causes the wear-resistant coating abutment part 101 to be recessed into the O-shaped hollow area 7. Furthermore, a resin film 9 is provided on the side of the bulletproof glass 5 near the wear-resistant coating abutment part 101, and the resin film 9 is in sliding contact with the wear-resistant coating abutment part 101.
[0037] The sealing strip body 1 is provided with a second wear-resistant coating abutment part 102 (the second wear-resistant coating abutment part 102 is composed of the sealing strip and its surface wear-resistant coating). The second coating abutment part is located in the gap between the bulletproof steel plate 6 and the bulletproof glass 5. The second wear-resistant coating abutment part 102 is tightly fitted to the edge of the bulletproof steel plate 6, and the second wear-resistant coating abutment part 102 is slidably connected to the bulletproof glass 5 and the two are tightly fitted. The second wear-resistant coating abutment part 102 is provided with an arc-shaped indentation 102a that matches the edge of the bulletproof steel plate 6. The end of the sealing strip body 1 is connected to the second wear-resistant coating abutment part 102 to form a C-shaped hollow area 8. The sliding of the bulletproof glass 5 causes the second wear-resistant coating abutment part 102 to be recessed into the C-shaped hollow area 8. Furthermore, a resin film 210 is provided on one side of the bulletproof glass 5 near the wear-resistant coating contact part 2 102, and the resin film 210 slides in contact with the wear-resistant coating contact part 2 102.
[0038] Therefore, the sealing system of this embodiment can be designed with an interference fit between the gun barrel structure (an O-shaped structure composed of a wear-resistant coating contact part 101 and the sealing strip body 1) and the bulletproof glass 5, serving as the load-bearing and guiding core of the sealing strip body 1, and forming a first seal with the bulletproof decorative plate 3, thus realizing the glass lifting function. Since the bulletproof glass 5 is very heavy, a resin diaphragm 9 is provided on the bulletproof glass 5 to reduce the resistance to glass lifting. Simultaneously, the sealing strip body 1 has a wear-resistant coating on the gun barrel structure to prevent wear and reduce lifting resistance. Then, the sealing lip (a C-shaped structure composed of a wear-resistant coating contact part 102 and the sealing strip body 1) is designed with an interference fit with the bulletproof glass 5. A resin diaphragm 10 is also provided on the bulletproof glass 5 to reduce the resistance to glass lifting. The sealing lip and the bulletproof steel plate 6 are designed with an arc-shaped interference fit to avoid gaps and poor appearance, forming a second seal. Through the first and second sealing designs, water, dust, and noise are effectively isolated, ensuring the quietness and cleanliness of the carriage.
[0039] After installation, the sealing system of this embodiment ensures that the bulletproof glass 5 and the bulletproof decorative panel 3 are completely flush and smoothly transitioned, forming a continuous and smooth surface without steps, which enhances the visual integrity and premium feel of the vehicle side.
[0040] By using the snap-fit protrusion 103, abutment protrusion 104, and gripper 105 on the sealing strip body 1, along with the metal guide rail 4 and its inner protrusion 401, the external flattening is achieved while the internal rigidity and stability are excellent, ensuring that the lifting process of the heavy-duty bulletproof glass 5 is as light, smooth, and quiet as that of a high-end civilian vehicle, greatly improving the user's perceived quality.
[0041] The sealing strip body 1 is designed with a variable cross section that can perfectly adapt to the heavy glass, as well as an O-shaped hollow area 7 and a C-shaped hollow area 8, to ensure that it can provide a uniform, stable and lasting sealing force when the glass is raised (dynamic) and closed (static), effectively isolating water, dust and noise, and ensuring the quietness and cleanliness of the car.
[0042] The wear-resistant coating and resin diaphragm are integrated in the sliding friction area between the wear-resistant coating contact part 101 and the bulletproof glass 5, and between the wear-resistant coating contact part 202 and the bulletproof glass 5. The force flow transmission is more reasonable, thereby significantly improving the wear resistance and fatigue life of the sealing system under long-term heavy load conditions.
[0043] This embodiment also provides a method for sealing bulletproof vehicle window glass, including: snapping one end of the sealing strip body 1 into the U-groove formed by the decorative groove strip 2 and the bulletproof decorative plate 3, and snapping the other end into the U-groove of the metal guide rail 4; applying wear-resistant material to both the wear-resistant coating abutment part one 101 and the wear-resistant coating abutment part two 102 of the sealing strip body 1, and applying resin material to the positions of the bulletproof glass 5 near the wear-resistant coating abutment part one 101 and the wear-resistant coating abutment part two 102; the wear-resistant coating abutment part one 101 is tightly fitted to the edge of the bulletproof decorative plate 3, and the wear-resistant coating abutment part two 102 is tightly fitted to the edge of the bulletproof steel plate 6; when the glass is raised or lowered, the wear-resistant coating abutment part one 101 slides and rubs against the bulletproof glass 5 and the two are tightly fitted, and the wear-resistant coating abutment part two 102 slides and rubs against the bulletproof glass 5 and the two are tightly fitted.
[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention's technical solution. Therefore, all equivalent changes made based on the shape, structure, and principle of the present invention without departing from the scope of the present invention's technical solution should be covered within the protection scope of the present invention.
Claims
1. A method for sealing bulletproof vehicle window glass, characterized in that, include: One end of the sealing strip body (1) is snapped into the U-groove formed by the decorative groove strip (2) and the bulletproof decorative plate (3), and the other end is snapped into the U-groove of the metal guide rail (4); Wear-resistant material is applied to both the wear-resistant coating contact part one (101) and the wear-resistant coating contact part two (102) of the sealing strip body (1), and resin material is applied to both the bulletproof glass (5) near the wear-resistant coating contact part one (101) and the wear-resistant coating contact part two (102). The wear-resistant coating abutment part one (101) is tightly fitted to the edge of the bulletproof decorative plate (3), and the wear-resistant coating abutment part two (102) is tightly fitted to the edge of the bulletproof steel plate (6); When the glass is raised or lowered, the wear-resistant coating contact part one (101) slides and rubs against the bulletproof glass (5) and the two are in close contact. The wear-resistant coating contact part two (102) slides and rubs against the bulletproof glass (5) and the two are in close contact.
2. A bulletproof vehicle window glass sealing system, used to implement the method of claim 1, characterized in that, The system includes a sealing strip body (1), one end of which is snapped into the U-groove formed by the decorative groove strip (2) and the bulletproof decorative plate (3), while the other end of the sealing strip body (1) is snapped into the U-groove of the metal guide rail (4) to ensure a stable installation; the sealing strip body (1) is provided with a wear-resistant coating abutment part (101), which is located in the gap between the bulletproof decorative plate (3) and the bulletproof glass (5), and the wear-resistant coating abutment part (101) and the bulletproof decorative plate (3) are connected. The edges are tightly fitted together, and the wear-resistant coating abutment part one (101) is slidably connected to the bulletproof glass (5) and the two are tightly fitted together; the sealing strip body (1) is provided with a wear-resistant coating abutment part two (102), the wear-resistant coating abutment part two (102) is located in the gap between the bulletproof steel plate (6) and the bulletproof glass (5), the wear-resistant coating abutment part two (102) is tightly fitted to the edge of the bulletproof steel plate (6), and the wear-resistant coating abutment part two (102) is slidably connected to the bulletproof glass (5) and the two are tightly fitted together.
3. The bulletproof vehicle window sealing system as described in claim 2, characterized in that, The sealing strip body (1) is engaged in the groove of the decorative groove (2) by a snap-fit protrusion (103), and the sealing strip body (1) abuts against the inner wall of the bulletproof decorative plate (3) by abutting protrusion (104). The snap-fit protrusion (103) and abutting protrusion (104) are respectively arranged on the two sides of the end of the sealing strip body (1).
4. The bulletproof vehicle window sealing system as described in claim 2, characterized in that, The sealing strip body (1) and the wear-resistant coating contact part (101) are hollowed out to form an O-shaped hollow area (7). The bulletproof glass (5) slides, causing the wear-resistant coating contact part (101) to be recessed into the O-shaped hollow area (7).
5. The bulletproof vehicle window sealing system as described in claim 2, characterized in that, The sealing strip body (1) is engaged with the U-groove of the metal guide rail (4) by the clamps (105) on both sides. The U-groove of the metal guide rail (4) is provided with an inner protrusion (401) for clamping by the clamps (105).
6. The bulletproof vehicle window sealing system as described in claim 2, characterized in that, The wear-resistant coating contact part 2 (102) is provided with an arc-shaped concave (102a) that matches the edge of the bulletproof steel plate (6).
7. The bulletproof vehicle window sealing system as described in claim 2, characterized in that, The end of the sealing strip body (1) is connected to the wear-resistant coating contact part two (102) to form a C-shaped hollow area (8). The bulletproof glass (5) slides, causing the wear-resistant coating contact part two (102) to be recessed into the C-shaped hollow area (8).
8. The bulletproof vehicle window sealing system as described in claim 2, characterized in that, A resin film (9) is provided on one side of the bulletproof glass (5) near the wear-resistant coating contact part (101), and the resin film (9) makes sliding contact with the wear-resistant coating contact part (101).
9. The bulletproof vehicle window sealing system as described in claim 2, characterized in that, A resin film (10) is provided on one side of the bulletproof glass (5) near the wear-resistant coating contact part (102), and the resin film (10) slides in contact with the wear-resistant coating contact part (102).