Frameless car door top sealing system

Abstract

The utility model discloses a frameless car door top sealing system, belongs to the technical field of car doors, and solves the problem that leakage occurs at the joint of a glass guide groove and an environment part which is actually a car door window frame or a car body sheet metal part after the structure is damaged through rivet connection. The frameless vehicle door top sealing system comprises a glass guide groove, the glass guide groove comprises a sealing part and a connecting part, an included angle is formed between the sealing part and the connecting part, the included angle is larger than or equal to 90 degrees and smaller than 180 degrees, and the connecting part can be used for being fixedly connected with a vehicle sheet metal part. The frameless car door moving glass is in contact with the sealing cover when ascending, elastic deformation is achieved, gaps are reduced, the sealing effect is enhanced, the outer sealing lip provides a second defense line, rainwater is prevented from entering, the outer water cutter protects the glass guide groove, water resistance is enhanced, the glass guide groove is fixed through the connecting rail bar and other structures, rivet damage is avoided, and water leakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile doors, in particular to a top sealing system for a frameless door. Background Art

[0002] Doors are a vital part of a vehicle, connected to the body via hinges, allowing passengers in and out while protecting the interior. The door structure includes exterior panels, interior panels, glass, and anti-collision beams. The exterior panels provide aesthetic appeal, the interior panels house control mechanisms, the glass provides visibility, and the anti-collision beams enhance side impact protection. Door design must balance safety, sealing, and convenience.

[0003] The window structure on a car door primarily consists of key components, including the glass, window frame, and sealing strip. The glass, the core of the window, is typically tempered or laminated to ensure it resists shattering and injury in the event of an impact, while also providing excellent heat and sound insulation. The window frame, typically made of metal or plastic, serves as the framework that holds the glass in place. It not only supports the glass but also ensures its stability when closed. The sealing strip, located between the window frame and the glass and made of rubber or other elastic material, prevents air and moisture from entering the vehicle interior, while also reducing noise and wind noise and enhancing the vehicle's airtightness and comfort. Together, these components ensure the functionality and safety of the window glass.

[0004] Under normal circumstances, the glass needs to be raised and lowered while being guided by the guide rails on both sides, so as to realize the opening and closing of the doors and windows. Generally speaking, the doors fully surround the window glass, but with the development of the trend of the times, not only the doors of sports cars use frameless doors, but many sedans and other models also use frameless doors.

[0005] This type of door does not have a traditional window frame, so the window glass is directly involved in matching the gap and surface difference with the surrounding parts (vehicle sheet metal parts), which places higher requirements on the dimensional assurance of the door glass system. However, in order to ensure the sealing effect when the door and window are closed, the current frameless doors still use the same or similar structure as framed doors to seal the top of the window glass.

[0006] For example, a vehicle door structure with application number CN202111361784.7, its technical points are: it is arranged between the vehicle door window frame and the vehicle door glass, the vehicle door glass includes the outer side surface of the vehicle door glass and the inner side surface of the vehicle door glass, and it includes a glass run groove sealing strip, the glass run groove sealing strip includes a base, a first sealing part, and a second sealing part; the base is arranged on the vehicle door window frame, and includes a transverse elastic part and a vertical elastic part; the transverse elastic part is arranged above the vehicle door glass; the vertical elastic part is connected below the transverse elastic part and is located on the side of the inner side of the vehicle door glass away from the outer side surface of the vehicle door glass; the first sealing part that can elastically contact the vehicle door glass is arranged on the transverse elastic part and is located between the vehicle door glass and the transverse elastic part; the second sealing part that can elastically contact the vehicle door glass is arranged on the vertical elastic part and is located between the inner side surface of the vehicle door glass and the vertical elastic part.

[0007] The above solution can seal the gap between the door glass and the door window frame. However, in this type of structure, the glass run channel often needs to be installed on the door window frame through fastener structures such as rivets. If it is a frameless door, it needs to be installed on the vehicle sheet metal of the vehicle body through fastener structures such as rivets. Although this has strong structural strength, for the glass run channel or for the environmental parts that are actually door window frames or body sheet metal parts, after the original structure is destroyed by rivets, the connection will inevitably leak. Therefore, after long-term use, the current type of structure will have certain problems with its sealing effect.

[0008] Therefore, a frameless vehicle door top sealing system is proposed to solve or alleviate the above problems. Utility Model Content

[0009] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a top sealing system for a frameless vehicle door.

[0010] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0011] A frameless vehicle door top sealing system includes a glass run channel, the glass run channel includes a sealing portion and a connecting portion, an angle is formed between the sealing portion and the connecting portion, and the angle is greater than or equal to 90° and less than 180°, the connecting portion can be used for fixed connection with the vehicle sheet metal part, and the sealing portion is used to contact the upper end surface of the movable glass.

[0012] Preferably, the angle is equal to 90°, and the surface of the sealing portion is formed by co-extruding a sliding material with a low friction coefficient.

[0013] Preferably, the angle is greater than 90° and less than 180°, and the surface of the sealing portion is sprayed to form a wear-resistant coating.

[0014] Preferably, the sealing portion includes a base with an L-shaped and strip-shaped cross-section, and a sealing cover fixedly connected to an opening on the bottom surface of the base. A hollow space is provided between the base and the sealing cover, and the sealing cover has elastic deformation performance.

[0015] Preferably, it further comprises an outer water cut, the inner side of the outer water cut is fixedly connected with a spacer bar of the same length as the outer water cut, and the base can be embedded between the spacer bar and the inner top surface of the outer water cut.

[0016] Preferably, the sealing part also includes a sealing strip, which is fixedly connected to the side of the base away from the sealing cover and the side of the base facing the connecting part. The sealing strip is arranged to be inclined upward and is arranged to resist the inner top surface of the outer water cut.

[0017] Preferably, the connecting portion includes a connecting rail with a U-shaped cross-section, one of the inner side walls of the connecting rail is fixedly connected to a plurality of inner lips, and the other inner side wall of the connecting rail is fixedly connected to a plurality of inverted teeth. When the connecting portion is connected to a vehicle sheet metal part, the vehicle sheet metal part is embedded in the connecting rail, and the inverted teeth and the inner lips are arranged to interfere with both sides of the vehicle sheet metal part.

[0018] Preferably, the connecting portion further comprises an outer sealing lip, which is fixedly connected to a side of the connecting rail facing the sealing portion and is arranged tilted upwards, and is used to contact the end face of the movable glass.

[0019] The utility model has the following beneficial effects:

[0020] The utility model discloses that when the sliding glass in the frameless vehicle door rises to close the vehicle door window, the sliding glass can make its upper end contact with the sealing cover of the sealing portion in the glass run channel, thereby making the sealing cover elastically deformable, thereby reducing the gap between the top surface of the sliding glass and the sealing cover. In addition, in the process of the sliding glass moving upward, it can also first pass through the outer sealing lip, so that the outer sealing lip contacts the inner end surface of the sliding glass, thereby making the outer sealing lip serve as a second sealing line for the sliding glass, so that rainwater from the outside is not easy to enter the vehicle through the sliding glass. In addition, since the outer side of the sealing portion of the glass run channel is also fixedly connected to the outer water cut, the outer water cut not only plays a protective and shielding effect on the glass run channel structure, but also plays another waterproof effect. Before rainwater passes through the gap between the sliding glass box and the sealing cover, it needs to pass through the outer water cut to block it, thereby making the top sealing system of the frameless vehicle door have a better sealing effect.

[0021] Furthermore, since the glass run channel in the frameless door top sealing system is not mounted on the vehicle sheet metal of the vehicle body, door, or frame by means of fasteners such as rivets, the installation of the glass run channel will not damage the structure of the glass run channel itself or the vehicle sheet metal of the vehicle body by the rivets. This also makes it difficult for gaps to appear at the connection between the glass run channel, the vehicle sheet metal, and the rivets, thereby preventing water leakage and dripping at such locations. Currently, the glass run channel is fixedly connected to the vehicle sheet metal by means of the connecting rail, the inner lip, and the inverted teeth. After the glass run channel and the vehicle sheet metal are connected, they can also have a strong connection strength and a sealing effect, and are unlikely to leak.

[0022] At the same time, according to the different processing technologies on the sealing cover, if a low-friction coefficient slippery material is required to be co-extruded to form a co-extruded slippery material, the angle between the sealing part and the connecting part needs to be maintained at 90°. On the contrary, if a coating needs to be sprayed on the surface, the sealing cover needs to be opened. Therefore, the angle between the sealing part and the connecting part needs to be maintained at a state greater than 90° and less than 180° to facilitate the production and processing of the glass run groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 It is a cross-sectional view of the utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a structural schematic diagram of another glass run channel in the present invention.

[0028] 1. Sliding glass; 2. External water cut; 3. Spacer; 4. Base; 5. Sealing strip; 6. Sealing cover; 7. Connecting rail; 8. Inner lip; 9. Inverted tooth; 10. External sealing lip. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use, or are the orientation or position relationship commonly understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Furthermore, the terms “first,” “second,” “third,” etc., are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0034] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] A frameless door top sealing system, such as Figure 1As shown, the glass run groove includes a sealing portion and a connecting portion. There is an angle between the sealing portion and the connecting portion, and the angle is greater than or equal to 90° and less than 180°. The connecting portion can be used to be fixedly connected to the vehicle sheet metal, and the sealing portion is used to be set in contact with the upper end surface of the movable glass 1.

[0036] In the present invention, the top surface sealing of the movable glass 1 is accomplished by setting a glass run groove, wherein the connecting portion is responsible for the main function of fixing the connection with the vehicle sheet metal. However, in this process, fasteners such as rivets that require destroying the vehicle sheet metal and the glass run groove are not used to connect the vehicle sheet metal and the glass run groove. Therefore, the glass run groove in the top sealing system of the frameless door can not only seal the top surface of the movable glass 1 in the frameless door, but also avoid the occurrence of holes and water leakage at the connection between the vehicle sheet metal and the glass run groove. Since there is an angle between the sealing portion and the connecting portion, and the angle is greater than or equal to 90° and less than 180°, the sealing portion can adjust the angle between the sealing portion and the connecting portion according to different processes.

[0037] Preferably, if Figure 2 and Figure 3 As shown, the included angle is equal to 90°, and the surface of the sealing portion is co-extruded with a sliding material having a low friction coefficient to form a co-extruded sliding material.

[0038] The sliding material with a low friction coefficient is prepared according to the formula and preparation method mentioned in any embodiment of CN117186524A.

[0039] Since the surface of the sealing portion is formed by co-extrusion of a low-friction coefficient slippery material, the sealing portion does not need to be unfolded. In this way, the angle between the sealing portion and the connecting portion can be maintained at 90°.

[0040] In the design of frameless doors, the glass guide groove at the top of the window glass is co-extruded with a low-friction coefficient slippery material. This approach brings many benefits. It significantly reduces the noise generated by the movable glass 1 contacting the sealing part during lifting and lowering, and also reduces the wear on the movable glass 1 and the sealing part in the movable guide groove, extending their service life. Secondly, this material has good wear resistance and aging resistance, which helps to maintain long-term sealing performance and reduce maintenance costs. In addition, the low-friction coefficient slippery material can also improve the waterproof performance and reduce the possibility of rainwater penetration, which is important for keeping the car dry and preventing moisture from corroding the electronic equipment and interior of the car.

[0041] Preferably, if Figure 4 As shown, the included angle is greater than 90° and less than 180°, and the surface of the sealing portion is sprayed to form a wear-resistant coating.

[0042] Since the surface of the sealing part is sprayed to form a wear-resistant coating, the spraying action requires the surface of the sealing part to be expanded and sufficient space to be reserved for the surface of the sealing part to spray the coating. Therefore, the angle between the sealing part and the connecting part must be greater than 90° and less than 180°. The provision of the wear-resistant coating ensures the service life of the sealing part. During the frequent opening and closing of the car window, the sealing part in the glass run groove is also not easily damaged or leaked due to the provision of the wear-resistant coating.

[0043] Preferably, the sealing portion includes a base 4 with an L-shaped and strip-shaped cross-section, and a sealing cover 6 fixedly connected to the bottom opening of the base 4. A hollow space is provided between the base 4 and the sealing cover 6, and the sealing cover 6 has elastic deformation performance.

[0044] The setting of the base 4 provides a supporting effect for the sealing cover 6, so that the sealing cover 6 can be attached to the structure, and the base 4 has a certain hardness, and can bear this part of the force when the movable glass 1 moves upward. The sealing cover 6 and the base 4 are hollow, and the sealing cover 6 has elastic deformation performance. Therefore, after the movable glass 1 moves upward, the gap between the movable glass 1 and the sealing cover 6 can be reduced as much as possible, ensuring the sealing effect when the movable glass 1 closes the car door.

[0045] Preferably, it also includes an outer water cut 2, the inner side of which is fixedly connected with a spacer bar 3 of the same length as the outer water cut 2, and the base 4 can be embedded between the spacer bar 3 and the inner top surface of the outer water cut 2.

[0046] The setting of the outer water cut 2 mainly serves to provide a further waterproof effect before sealing between the movable glass 1 and the sealing cover 6. The opening between the outer water cut 2 and the movable glass 1 is located below the top surface of the movable glass 1. Therefore, when rain falls from the sky, the rain will not flow between the movable glass 1 and the sealing cover 6 at the first time. At the same time, the outer water cut 2 can shield the glass guide groove, making the appearance of the vehicle sheet metal parts more beautiful.

[0047] Preferably, the sealing part also includes a sealing strip 5, which is fixedly connected to the side of the base 4 away from the sealing cover 6, and the sealing strip 5 is fixedly connected to the side of the base 4 facing the connecting part. The sealing strip 5 is arranged to be inclined upward, and the sealing strip 5 is arranged to resist the inner top surface of the outer water cut 2.

[0048] The provision of the sealing strip 5 can further reduce the gap between the base 4 and the outer water cut 2 when the sealing portion is engaged with the outer water cut 2, thereby enhancing its waterproof performance.

[0049] Preferably, the connecting portion includes a connecting rail 7 with a U-shaped cross-section, one of the inner side walls of the connecting rail 7 is fixedly connected to a plurality of inner lips 8, and the other inner side wall of the connecting rail 7 is fixedly connected to a plurality of inverted teeth 9. When the connecting portion is connected to the vehicle sheet metal part, the vehicle sheet metal part is embedded in the connecting rail 7, and the inverted teeth 9 and the inner lips 8 are arranged to interfere with both sides of the vehicle sheet metal part.

[0050] The connecting rail 7 with a U-shaped cross-section replaces the structure of the conventional glass run channel, avoiding the glass run channel from being connected by fasteners such as rivets that require damage to the vehicle sheet metal and the glass run channel, thereby avoiding damage to the vehicle sheet metal and the glass run channel, which would cause water leakage at the gap at the connection when fasteners such as rivets pass through the vehicle sheet metal and the glass run channel for connection. The inner lip edge 8 and several inverted teeth 9 can also connect the connecting rail 7 to the vehicle sheet metal, so that the connecting rail 7 has better connection strength and sealing effect when connected to the vehicle sheet metal.

[0051] Preferably, the connecting portion further includes an outer sealing lip 10 , which is fixedly connected to the side of the connecting rail 7 facing the sealing portion and is tilted upward. The outer sealing lip 10 is used to contact the end face of the movable glass 1 .

[0052] The setting of the outer sealing lip 10 provides a third waterproof line for the frameless door top sealing system, so that after rainwater penetrates the gap between the movable glass 1 and the sealing cover 6, the outer sealing lip 10 can further block the rainwater by contacting the end face of the movable glass 1, preventing rainwater from directly entering the interior of the vehicle, thereby ensuring the dryness and waterproof performance of the vehicle.

[0053] To sum up, the frameless door top sealing system involved in the present invention is intended to improve the sealing performance and durability of the frameless door. When the window is closed, the upper end of the movable glass 1 contacts the sealing cover 6 in the glass guide groove, causing the sealing cover 6 to undergo elastic deformation, effectively reducing the gap between the movable glass 1 and the sealing cover 6, and enhancing the sealing effect.

[0054] During the rising process of the movable glass 1, the outer sealing lip 10 contacts the inner end face of the movable glass 1, forming a second sealing line of defense, effectively preventing rainwater from penetrating into the vehicle. In addition, the outer water cut 2 on the outside of the glass run groove sealing part not only protects the run groove structure, but also provides additional waterproof function, ensuring that rainwater is effectively blocked before passing through the gap between the glass and the sealing cover 6, thereby improving the sealing performance of the top of the frameless door, thereby forming the first sealing line of defense.

[0055] The glass run channel installation method of the utility model avoids the use of fasteners such as rivets, reduces damage to the body sheet metal, reduces the risk of gaps at the connection, and effectively prevents leakage and dripping. By connecting the rail 7, the inner lip edge 8 and the inverted tooth 9 to write the structure, a fixed connection between the glass run channel and the body sheet metal is achieved, ensuring the connection strength and sealing effect, and reducing the possibility of leakage.

[0056] In terms of the processing technology of the sealing cover 6, the utility model provides two different processing methods. If a co-extruded sliding material with a low friction coefficient is required to be used, the angle between the sealing part and the connecting part should be maintained at 90° to ensure the uniform distribution of the material and the low friction characteristics. On the contrary, if a coating needs to be sprayed on the surface of the sealing cover 6, the sealing cover 6 needs to be kept open, and the angle should be maintained within the range of greater than 90° and less than 180° to facilitate uniform spraying and curing of the coating without affecting the production and processing of the glass guide groove.

[0057] This design not only improves the sealing performance of the frameless door, but also enhances its durability and maintenance convenience. By reducing the friction between the moving glass 1 and the sealing cover 6, the noise and wear when the moving glass 1 is raised and lowered are reduced, and the service life of the components is extended. At the same time, by optimizing the processing technology of the sealing cover 6, the production efficiency and product quality are improved, so that the frameless door has excellent functionality and practicality while maintaining its beauty.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A frameless door top sealing system, characterized in that: The glass run groove comprises a sealing portion and a connecting portion, wherein an angle exists between the sealing portion and the connecting portion, and the angle is greater than or equal to 90° and less than 180°, the connecting portion can be used for fixed connection with a vehicle sheet metal part, and the sealing portion is used for contacting the upper end surface of the movable glass (1).

2. A frameless vehicle door top sealing system according to claim 1, characterized in that: The included angle is equal to 90 degrees, and the surface of the sealing portion is co-extruded with a sliding material having a low friction coefficient to form a co-extruded sliding material.

3. The frameless vehicle door top sealing system according to claim 1, characterized in that: The angle is greater than 90° and less than 180°, and the surface of the sealing portion is sprayed to form a wear-resistant coating.

4. The frameless vehicle door top sealing system according to claim 1, characterized in that: The sealing portion comprises a base (4) having an L-shaped cross section and a strip shape, and a sealing cover (6) fixedly connected to an opening on the bottom surface of the base (4); a hollow space is provided between the base (4) and the sealing cover (6), and the sealing cover (6) has elastic deformation performance.

5. The frameless vehicle door top sealing system according to claim 4, characterized in that: It also includes an outer water cut (2), the inner side of which is fixedly connected to a spacer bar (3) of equal length, and the base (4) can be embedded between the spacer bar (3) and the inner top surface of the outer water cut (2).

6. The frameless vehicle door top sealing system according to claim 5, characterized in that: The sealing portion further comprises a sealing strip (5), wherein the sealing strip (5) is fixedly connected to a side of the base (4) away from the sealing cover (6), and the sealing strip (5) is fixedly connected to a side of the base (4) facing the connecting portion, wherein the sealing strip (5) is arranged to be inclined upward, and the sealing strip (5) is arranged to abut against the inner top surface of the outer water cut (2).

7. The frameless vehicle door top sealing system according to claim 1, characterized in that: The connecting portion comprises a connecting rail (7) having a U-shaped cross section, one inner side wall of the connecting rail (7) being fixedly connected to a plurality of inner lips (8), and the other inner side wall of the connecting rail (7) being fixedly connected to a plurality of inverted teeth (9). When the connecting portion is connected to a vehicle sheet metal part, the vehicle sheet metal part is embedded in the connecting rail (7), and the inverted teeth (9) and the inner lips (8) are arranged to abut against two sides of the vehicle sheet metal part.

8. The frameless vehicle door top sealing system according to claim 7, characterized in that: The connecting portion further comprises an outer sealing lip (10), the outer sealing lip (10) being fixedly connected to a side of the connecting rail (7) facing the sealing portion, and the outer sealing lip (10) being arranged tilted upward, and the outer sealing lip (10) being used to contact the end face of the movable glass (1).

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