Frameless car door top sealing system

Abstract

The invention 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 makes 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 sealing cover, the outer sealing lip 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 invention relates to the technical field of automobile doors, and in particular to a top sealing system for a frameless door. Background Art

[0002] The door is an important part of the vehicle. It is connected to the body through hinges, allowing passengers to enter and exit the vehicle and protecting the safety of the interior. The door structure includes the outer panel, inner panel, glass, anti-collision beam, etc. The outer panel is beautiful, the inner panel is equipped with a control mechanism, the glass provides a field of view, and the anti-collision beam enhances side collision protection. The door design must take into account safety, sealing and convenience.

[0003] The window glass structure on the car door mainly includes key parts such as glass, window frame, and sealing strip. Glass is the core of the car window. It is usually made of tempered glass or laminated glass to ensure that it is not easy to break and injure people when it is impacted, and it also has good heat insulation and sound insulation effects. The window frame is a frame that fixes the glass. It is usually made of metal or plastic. It not only supports the glass, but also ensures the stability of the glass when it is closed. The sealing strip is located between the window frame and the glass. It is made of rubber or other elastic materials to prevent air and moisture from entering the car, while reducing noise and wind noise, and improving the sealing and comfort of the vehicle. These components together ensure the functionality and safety of the car window glass.

[0004] Under normal circumstances, the glass needs to be raised and lowered while being guided by the guide rails on both sides to realize the opening and closing of the doors and windows. Usually, the doors have a structure that fully surrounds the window glass, but with the development of the trend of the times, not only sports car doors 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 environmental parts (vehicle sheet metal parts), which puts higher requirements on the size assurance of the door glass system. However, in order to ensure the sealing effect when the doors and windows 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 has the following technical points: it is arranged between a vehicle door window frame and a vehicle door glass, the vehicle door glass includes an outer side surface of the vehicle door glass and an inner side surface of the vehicle door glass, and it includes a glass run groove sealing strip, and the glass run groove sealing strip includes a base, a first sealing portion, and a second sealing portion; the base is arranged on the vehicle door window frame, including a transverse elastic member, and a vertical elastic member; the transverse elastic member is arranged above the vehicle door glass; the vertical elastic member is connected below the transverse elastic member, and is located on the inner side surface of the vehicle door glass away from the outer side surface of the vehicle door glass; the first sealing portion that can elastically contact the vehicle door glass is arranged on the transverse elastic member, and is located between the vehicle door glass and the transverse elastic member; the second sealing portion that can elastically contact the vehicle door glass is arranged on the vertical elastic member, and is located between the inner side surface of the vehicle door glass and the vertical elastic member.

[0007] The above scheme can have the effect of sealing 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 a 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. Summary of the invention

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

[0010] In order to achieve the above object, the present invention adopts the following technical solutions: A frameless vehicle door top sealing system includes a glass run channel, the glass run channel 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 a vehicle sheet metal part, and the sealing portion is used to be set in contact with the upper end surface of a movable glass.

[0011] Preferably, the angle is equal to 90°, and the surface of the sealing portion is formed by co-extrusion of a sliding material with a low friction coefficient.

[0012] 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.

[0013] Preferably, the sealing portion comprises a base with an L-shaped cross section and a strip shape, 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.

[0014] Preferably, it also includes an outer water cut, the inner side of which 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.

[0015] Preferably, the sealing part also includes a sealing strip, which is fixedly connected to a side of the base away from the sealing cover and to a side of the base toward the connecting part, and is arranged to be inclined upward and to abut against the inner top surface of the outer water cut.

[0016] 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 with a plurality of inner lips, and the other inner side wall of the connecting rail is fixedly connected with 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 abut against two sides of the vehicle sheet metal part.

[0017] 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 obliquely upward, and is used to abut against an end face of the movable glass.

[0018] The present invention has the following beneficial effects: When the movable glass in the frameless door of the present invention rises to close the door window, the movable glass can make its upper end contact with the sealing cover of the sealing part in the glass run groove, so that the sealing cover can be elastically deformed, thereby reducing the gap between the top surface of the movable glass and the sealing cover. In addition, in the process of the movable glass moving upward, it can also first pass through the outer sealing lip edge, so that the outer sealing lip edge contacts the inner side surface of the movable glass, and then the outer sealing lip edge serves as a second sealing defense line for the movable glass, so that rainwater from the outside is not easy to enter the vehicle through the movable glass. In addition, since the outer side of the sealing part of the glass run groove 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 groove structure, but also plays another waterproof effect. Before rainwater passes through the gap between the movable glass box and the sealing cover, it needs to pass through the shielding of the outer water cut, so that the top sealing system of the frameless door has a better sealing effect. In addition, since the glass run channel in the frameless door top sealing system is not installed on the vehicle sheet metal of the vehicle body, door, or frame through a fastener structure such as rivets, the installation of the glass run channel will not cause its own structure and the vehicle sheet metal of the vehicle body to be damaged by the rivets, which 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 the location. At present, the glass run channel and the vehicle sheet metal are fixedly connected by the connecting rail, the inner lip, and the inverted tooth structure, and after the glass run channel and the vehicle sheet metal are connected, it can also have a strong connection strength and a sealing effect, and it is not easy to leak; At the same time, according to the different processing techniques 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°, which is convenient for the production and processing of the glass guide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 It is a schematic structural diagram of another glass run channel in the present invention.

[0021] 1. Moving glass; 2. External water cut; 3. Spacer; 4. Base; 5. Sealing strip; 6. Sealing cover; 7. Connecting rail; 8. Inner lip; 9. Inverted teeth; 10. External sealing lip. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] 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, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the invention is conventionally placed when in use, or are the orientations or positional relationships conventionally 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 element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] 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.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] A frameless door top sealing system, such as Figure 1 As shown, it includes a glass guide groove, which 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 part, and the sealing portion is used to be set in contact with the upper end surface of the movable glass 1.

[0029] In the present invention, a glass run groove is provided to complete the sealing of the top surface of the movable glass 1, wherein the connecting portion is responsible for the main function of fixedly connecting with the vehicle sheet metal. However, in this process, fasteners such as rivets that need to destroy 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.

[0030] Preferably, if Figure 2 and Figure 3 As shown, the 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.

[0031] The sliding material with a low friction coefficient is prepared according to the formula and preparation method mentioned in any embodiment of CN117186524A.

[0032] Since the surface of the sealing part is formed by co-extrusion of a slippery material with a low friction coefficient, the sealing part does not need to be unfolded, so that the angle between the sealing part and the connecting part is maintained at 90°.

[0033] 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 sliding material to form a co-extruded sliding material. This practice 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 sliding material with a low friction coefficient 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 decoration in the car.

[0034] Preferably, if Figure 4 As shown, 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.

[0035] Since the wear-resistant coating is formed on the surface of the sealing part by spraying, the spraying action requires that the surface of the sealing part be unfolded and sufficient space be reserved for the spraying of the coating on the surface of the sealing part. 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 guide groove is not easily damaged or leaked due to the provision of the wear-resistant coating.

[0036] 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 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.

[0037] The setting of the base 4 has a supporting effect on 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.

[0038] 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 .

[0039] 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 toward 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.

[0040] 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 toward the connecting part, and 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.

[0041] 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.

[0042] 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 with a plurality of inner lips 8, and the other inner side wall of the connecting rail 7 is fixedly connected with 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 abut against both sides of the vehicle sheet metal part.

[0043] 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 through 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 result in 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 a number of 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.

[0044] Preferably, the connection portion further comprises an outer sealing lip 10 , which is fixedly connected to the side of the connection rail 7 facing the sealing portion and is arranged tilted upwards. The outer sealing lip 10 is used to abut against the end face of the movable glass 1 .

[0045] 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, thereby preventing rainwater from directly entering the interior of the vehicle, thereby ensuring the dryness and waterproof performance of the vehicle.

[0046] 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, thereby effectively reducing the gap between the movable glass 1 and the sealing cover 6 and enhancing the sealing effect.

[0047] During the rising process of the movable glass 1, the outer sealing lip 10 contacts the inner end face of the movable glass 1 to form a second sealing defense line, which effectively prevents rainwater from penetrating into the vehicle. In addition, the outer water cut 2 on the outside of the glass guide groove sealing part not only protects the guide groove structure, but also provides additional waterproof function to ensure 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 defense line.

[0048] The glass run channel installation method of the present invention 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 water 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, the connection strength and sealing effect are guaranteed, and the possibility of water leakage is reduced.

[0049] In terms of the processing technology of the sealing cover 6, the present invention provides two different processing methods. If a co-extruded sliding material with a low friction coefficient is required, the angle between the sealing part and the connecting part should be maintained at 90° to ensure uniform distribution of the material and 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 a 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.

[0050] 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. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope 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, 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 a vehicle sheet metal part, and the sealing portion is used for contacting with the upper end surface of the movable glass (1).

2. A frameless door top sealing system according to claim 1, characterized in that: The 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.

3. A frameless 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. A frameless 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 in the shape of a strip, 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. A frameless door top sealing system according to claim 4, characterized in that: It also comprises an outer water cut (2), the inner side of which is fixedly connected with 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. A frameless 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, 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 obliquely upward, and the outer sealing lip (10) being used to abut against an end face of the movable glass (1).

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